git/config.c

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/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
* Copyright (C) Johannes Schindelin, 2005
*
*/
#include "cache.h"
#include "config.h"
#include "repository.h"
#include "lockfile.h"
#include "exec_cmd.h"
#include "strbuf.h"
#include "quote.h"
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
#include "hashmap.h"
#include "string-list.h"
#include "utf8.h"
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
#include "dir.h"
struct config_source {
struct config_source *prev;
union {
FILE *file;
struct config_buf {
const char *buf;
size_t len;
size_t pos;
} buf;
} u;
enum config_origin_type origin_type;
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
const char *name;
const char *path;
int die_on_error;
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
int linenr;
int eof;
struct strbuf value;
struct strbuf var;
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
int (*do_fgetc)(struct config_source *c);
int (*do_ungetc)(int c, struct config_source *conf);
long (*do_ftell)(struct config_source *c);
};
/*
* These variables record the "current" config source, which
* can be accessed by parsing callbacks.
*
* The "cf" variable will be non-NULL only when we are actually parsing a real
* config source (file, blob, cmdline, etc).
*
* The "current_config_kvi" variable will be non-NULL only when we are feeding
* cached config from a configset into a callback.
*
* They should generally never be non-NULL at the same time. If they are both
* NULL, then we aren't parsing anything (and depending on the function looking
* at the variables, it's either a bug for it to be called in the first place,
* or it's a function which can be reused for non-config purposes, and should
* fall back to some sane behavior).
*/
static struct config_source *cf;
static struct key_value_info *current_config_kvi;
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
/*
* Similar to the variables above, this gives access to the "scope" of the
* current value (repo, global, etc). For cached values, it can be found via
* the current_config_kvi as above. During parsing, the current value can be
* found in this variable. It's not part of "cf" because it transcends a single
* file (i.e., a file included from .git/config is still in "repo" scope).
*/
static enum config_scope current_parsing_scope;
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
static int core_compression_seen;
static int pack_compression_seen;
Custom compression levels for objects and packs Add config variables pack.compression and core.loosecompression , and switch --compression=level to pack-objects. Loose objects will be compressed using core.loosecompression if set, else core.compression if set, else Z_BEST_SPEED. Packed objects will be compressed using --compression=level if seen, else pack.compression if set, else core.compression if set, else Z_DEFAULT_COMPRESSION. This is the "pack compression level". Loose objects added to a pack undeltified will be recompressed to the pack compression level if it is unequal to the current loose compression level by the preceding rules, or if the loose object was written while core.legacyheaders = true. Newly deltified loose objects are always compressed to the current pack compression level. Previously packed objects added to a pack are recompressed to the current pack compression level exactly when their deltification status changes, since the previous pack data cannot be reused. In either case, the --no-reuse-object switch from the first patch below will always force recompression to the current pack compression level, instead of assuming the pack compression level hasn't changed and pack data can be reused when possible. This applies on top of the following patches from Nicolas Pitre: [PATCH] allow for undeltified objects not to be reused [PATCH] make "repack -f" imply "pack-objects --no-reuse-object" Signed-off-by: Dana L. How <danahow@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-09 20:56:50 +00:00
static int zlib_compression_seen;
static int config_file_fgetc(struct config_source *conf)
{
return getc_unlocked(conf->u.file);
}
static int config_file_ungetc(int c, struct config_source *conf)
{
return ungetc(c, conf->u.file);
}
static long config_file_ftell(struct config_source *conf)
{
return ftell(conf->u.file);
}
static int config_buf_fgetc(struct config_source *conf)
{
if (conf->u.buf.pos < conf->u.buf.len)
return conf->u.buf.buf[conf->u.buf.pos++];
return EOF;
}
static int config_buf_ungetc(int c, struct config_source *conf)
{
if (conf->u.buf.pos > 0) {
conf->u.buf.pos--;
if (conf->u.buf.buf[conf->u.buf.pos] != c)
die("BUG: config_buf can only ungetc the same character");
return c;
}
return EOF;
}
static long config_buf_ftell(struct config_source *conf)
{
return conf->u.buf.pos;
}
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
#define MAX_INCLUDE_DEPTH 10
static const char include_depth_advice[] =
"exceeded maximum include depth (%d) while including\n"
" %s\n"
"from\n"
" %s\n"
"Do you have circular includes?";
static int handle_path_include(const char *path, struct config_include_data *inc)
{
int ret = 0;
struct strbuf buf = STRBUF_INIT;
char *expanded;
if (!path)
return config_error_nonbool("include.path");
expanded = expand_user_path(path, 0);
if (!expanded)
return error("could not expand include path '%s'", path);
path = expanded;
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
/*
* Use an absolute path as-is, but interpret relative paths
* based on the including config file.
*/
if (!is_absolute_path(path)) {
char *slash;
if (!cf || !cf->path)
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
return error("relative config includes must come from files");
slash = find_last_dir_sep(cf->path);
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
if (slash)
strbuf_add(&buf, cf->path, slash - cf->path + 1);
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
strbuf_addstr(&buf, path);
path = buf.buf;
}
config: allow inaccessible configuration under $HOME The changes v1.7.12.1~2^2~4 (config: warn on inaccessible files, 2012-08-21) and v1.8.1.1~22^2~2 (config: treat user and xdg config permission problems as errors, 2012-10-13) were intended to prevent important configuration (think "[transfer] fsckobjects") from being ignored when the configuration is unintentionally unreadable (for example with EIO on a flaky filesystem, or with ENOMEM due to a DoS attack). Usually ~/.gitconfig and ~/.config/git are readable by the current user, and if they aren't then it would be easy to fix those permissions, so the damage from adding this check should have been minimal. Unfortunately the access() check often trips when git is being run as a server. A daemon (such as inetd or git-daemon) starts as "root", creates a listening socket, and then drops privileges, meaning that when git commands are invoked they cannot access $HOME and die with fatal: unable to access '/root/.config/git/config': Permission denied Any patch to fix this would have one of three problems: 1. We annoy sysadmins who need to take an extra step to handle HOME when dropping privileges (the current behavior, or any other proposal that they have to opt into). 2. We annoy sysadmins who want to set HOME when dropping privileges, either by making what they want to do impossible, or making them set an extra variable or option to accomplish what used to work (e.g., a patch to git-daemon to set HOME when --user is passed). 3. We loosen the check, so some cases which might be noteworthy are not caught. This patch is of type (3). Treat user and xdg configuration that are inaccessible due to permissions (EACCES) as though no user configuration was provided at all. An alternative method would be to check if $HOME is readable, but that would not help in cases where the user who dropped privileges had a globally readable HOME with only .config or .gitconfig being private. This does not change the behavior when /etc/gitconfig or .git/config is unreadable (since those are more serious configuration errors), nor when ~/.gitconfig or ~/.config/git is unreadable due to problems other than permissions. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Improved-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-04-12 21:03:18 +00:00
if (!access_or_die(path, R_OK, 0)) {
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
if (++inc->depth > MAX_INCLUDE_DEPTH)
die(include_depth_advice, MAX_INCLUDE_DEPTH, path,
!cf ? "<unknown>" :
cf->name ? cf->name :
"the command line");
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
ret = git_config_from_file(git_config_include, path, inc);
inc->depth--;
}
strbuf_release(&buf);
free(expanded);
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
return ret;
}
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
static int prepare_include_condition_pattern(struct strbuf *pat)
{
struct strbuf path = STRBUF_INIT;
char *expanded;
int prefix = 0;
expanded = expand_user_path(pat->buf, 1);
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
if (expanded) {
strbuf_reset(pat);
strbuf_addstr(pat, expanded);
free(expanded);
}
if (pat->buf[0] == '.' && is_dir_sep(pat->buf[1])) {
const char *slash;
if (!cf || !cf->path)
return error(_("relative config include "
"conditionals must come from files"));
strbuf_realpath(&path, cf->path, 1);
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
slash = find_last_dir_sep(path.buf);
if (!slash)
die("BUG: how is this possible?");
strbuf_splice(pat, 0, 1, path.buf, slash - path.buf);
prefix = slash - path.buf + 1 /* slash */;
} else if (!is_absolute_path(pat->buf))
strbuf_insert(pat, 0, "**/", 3);
if (pat->len && is_dir_sep(pat->buf[pat->len - 1]))
strbuf_addstr(pat, "**");
strbuf_release(&path);
return prefix;
}
static int include_by_gitdir(const struct config_options *opts,
const char *cond, size_t cond_len, int icase)
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
{
struct strbuf text = STRBUF_INIT;
struct strbuf pattern = STRBUF_INIT;
int ret = 0, prefix;
const char *git_dir;
int already_tried_absolute = 0;
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
if (opts->git_dir)
git_dir = opts->git_dir;
else
goto done;
strbuf_realpath(&text, git_dir, 1);
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
strbuf_add(&pattern, cond, cond_len);
prefix = prepare_include_condition_pattern(&pattern);
again:
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
if (prefix < 0)
goto done;
if (prefix > 0) {
/*
* perform literal matching on the prefix part so that
* any wildcard character in it can't create side effects.
*/
if (text.len < prefix)
goto done;
if (!icase && strncmp(pattern.buf, text.buf, prefix))
goto done;
if (icase && strncasecmp(pattern.buf, text.buf, prefix))
goto done;
}
ret = !wildmatch(pattern.buf + prefix, text.buf + prefix,
icase ? WM_CASEFOLD : 0);
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
if (!ret && !already_tried_absolute) {
/*
* We've tried e.g. matching gitdir:~/work, but if
* ~/work is a symlink to /mnt/storage/work
* strbuf_realpath() will expand it, so the rule won't
* match. Let's match against a
* strbuf_add_absolute_path() version of the path,
* which'll do the right thing
*/
strbuf_reset(&text);
strbuf_add_absolute_path(&text, git_dir);
already_tried_absolute = 1;
goto again;
}
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
done:
strbuf_release(&pattern);
strbuf_release(&text);
return ret;
}
static int include_condition_is_true(const struct config_options *opts,
const char *cond, size_t cond_len)
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
{
if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len))
return include_by_gitdir(opts, cond, cond_len, 0);
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len))
return include_by_gitdir(opts, cond, cond_len, 1);
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
/* unknown conditionals are always false */
return 0;
}
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
int git_config_include(const char *var, const char *value, void *data)
{
struct config_include_data *inc = data;
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
const char *cond, *key;
int cond_len;
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
int ret;
/*
* Pass along all values, including "include" directives; this makes it
* possible to query information on the includes themselves.
*/
ret = inc->fn(var, value, inc->data);
if (ret < 0)
return ret;
if (!strcmp(var, "include.path"))
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
ret = handle_path_include(value, inc);
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
if (!parse_config_key(var, "includeif", &cond, &cond_len, &key) &&
(cond && include_condition_is_true(inc->opts, cond, cond_len)) &&
config: add conditional include Sometimes a set of repositories want to share configuration settings among themselves that are distinct from other such sets of repositories. A user may work on two projects, each of which have multiple repositories, and use one user.email for one project while using another for the other. Setting $GIT_DIR/.config works, but if the penalty of forgetting to update $GIT_DIR/.config is high (especially when you end up cloning often), it may not be the best way to go. Having the settings in ~/.gitconfig, which would work for just one set of repositories, would not well in such a situation. Having separate ${HOME}s may add more problems than it solves. Extend the include.path mechanism that lets a config file include another config file, so that the inclusion can be done only when some conditions hold. Then ~/.gitconfig can say "include config-project-A only when working on project-A" for each project A the user works on. In this patch, the only supported grouping is based on $GIT_DIR (in absolute path), so you would need to group repositories by directory, or something like that to take advantage of it. We already have include.path for unconditional includes. This patch goes with includeIf.<condition>.path to make it clearer that a condition is required. The new config has the same backward compatibility approach as include.path: older git versions that don't understand includeIf will simply ignore them. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-01 11:26:31 +00:00
!strcmp(key, "path"))
ret = handle_path_include(value, inc);
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
return ret;
}
void git_config_push_parameter(const char *text)
{
struct strbuf env = STRBUF_INIT;
const char *old = getenv(CONFIG_DATA_ENVIRONMENT);
git_config_push_parameter: handle empty GIT_CONFIG_PARAMETERS The "git -c var=value" option stuffs the config value into $GIT_CONFIG_PARAMETERS, so that sub-processes can see it. When the config is later read via git_config() or similar, we parse it back out of that variable. The parsing end is a little bit picky; it assumes that each entry was generated with sq_quote_buf(), and that there is no extraneous whitespace. On the generating end, we are careful to append to an existing $GIT_CONFIG_PARAMETERS variable if it exists. However, our test for "should we add a space separator" is too liberal: it will add one even if the environment variable exists but is empty. As a result, you might end up with: GIT_CONFIG_PARAMETERS=" 'core.foo=bar'" which the parser will choke on. This was hard to trigger in older versions of git, since we only set the variable when we had something to put into it (though you could certainly trigger it manually). But since 14111fc (git: submodule honor -c credential.* from command line, 2016-02-29), the submodule code will unconditionally put the $GIT_CONFIG_PARAMETERS variable into the environment of any operation in the submodule, whether it is empty or not. So any of those operations which themselves use "git -c" will generate the unparseable value and fail. We can easily fix it by catching this case on the generating side. While we're adding a test, let's also check that multiple layers of "git -c" work, which was previously not tested at all. Reported-by: Shin Fan <shinfan@google.com> Signed-off-by: Jeff King <peff@peff.net> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Tested-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-22 19:50:51 +00:00
if (old && *old) {
strbuf_addstr(&env, old);
strbuf_addch(&env, ' ');
}
sq_quote_buf(&env, text);
setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1);
strbuf_release(&env);
}
static inline int iskeychar(int c)
{
return isalnum(c) || c == '-';
}
/*
* Auxiliary function to sanity-check and split the key into the section
* identifier and variable name.
*
* Returns 0 on success, -1 when there is an invalid character in the key and
* -2 if there is no section name in the key.
*
* store_key - pointer to char* which will hold a copy of the key with
* lowercase section and variable name
* baselen - pointer to int which will hold the length of the
* section + subsection part, can be NULL
*/
static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet)
{
int i, dot, baselen;
const char *last_dot = strrchr(key, '.');
/*
* Since "key" actually contains the section name and the real
* key name separated by a dot, we have to know where the dot is.
*/
if (last_dot == NULL || last_dot == key) {
if (!quiet)
error("key does not contain a section: %s", key);
return -CONFIG_NO_SECTION_OR_NAME;
}
if (!last_dot[1]) {
if (!quiet)
error("key does not contain variable name: %s", key);
return -CONFIG_NO_SECTION_OR_NAME;
}
baselen = last_dot - key;
if (baselen_)
*baselen_ = baselen;
/*
* Validate the key and while at it, lower case it for matching.
*/
if (store_key)
*store_key = xmallocz(strlen(key));
dot = 0;
for (i = 0; key[i]; i++) {
unsigned char c = key[i];
if (c == '.')
dot = 1;
/* Leave the extended basename untouched.. */
if (!dot || i > baselen) {
if (!iskeychar(c) ||
(i == baselen + 1 && !isalpha(c))) {
if (!quiet)
error("invalid key: %s", key);
goto out_free_ret_1;
}
c = tolower(c);
} else if (c == '\n') {
if (!quiet)
error("invalid key (newline): %s", key);
goto out_free_ret_1;
}
if (store_key)
(*store_key)[i] = c;
}
return 0;
out_free_ret_1:
if (store_key) {
FREE_AND_NULL(*store_key);
}
return -CONFIG_INVALID_KEY;
}
int git_config_parse_key(const char *key, char **store_key, int *baselen)
{
return git_config_parse_key_1(key, store_key, baselen, 0);
}
int git_config_key_is_valid(const char *key)
{
return !git_config_parse_key_1(key, NULL, NULL, 1);
}
int git_config_parse_parameter(const char *text,
config_fn_t fn, void *data)
{
const char *value;
char *canonical_name;
struct strbuf **pair;
int ret;
pair = strbuf_split_str(text, '=', 2);
if (!pair[0])
return error("bogus config parameter: %s", text);
if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') {
strbuf_setlen(pair[0], pair[0]->len - 1);
value = pair[1] ? pair[1]->buf : "";
} else {
value = NULL;
}
strbuf_trim(pair[0]);
if (!pair[0]->len) {
strbuf_list_free(pair);
return error("bogus config parameter: %s", text);
}
if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) {
ret = -1;
} else {
ret = (fn(canonical_name, value, data) < 0) ? -1 : 0;
free(canonical_name);
}
strbuf_list_free(pair);
return ret;
}
int git_config_from_parameters(config_fn_t fn, void *data)
{
const char *env = getenv(CONFIG_DATA_ENVIRONMENT);
int ret = 0;
char *envw;
const char **argv = NULL;
int nr = 0, alloc = 0;
int i;
struct config_source source;
if (!env)
return 0;
memset(&source, 0, sizeof(source));
source.prev = cf;
source.origin_type = CONFIG_ORIGIN_CMDLINE;
cf = &source;
/* sq_dequote will write over it */
envw = xstrdup(env);
if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) {
ret = error("bogus format in " CONFIG_DATA_ENVIRONMENT);
goto out;
}
for (i = 0; i < nr; i++) {
if (git_config_parse_parameter(argv[i], fn, data) < 0) {
ret = -1;
goto out;
}
}
out:
free(argv);
free(envw);
cf = source.prev;
return ret;
}
static int get_next_char(void)
{
int c = cf->do_fgetc(cf);
if (c == '\r') {
/* DOS like systems */
c = cf->do_fgetc(cf);
if (c != '\n') {
if (c != EOF)
cf->do_ungetc(c, cf);
c = '\r';
}
}
if (c == '\n')
cf->linenr++;
if (c == EOF) {
cf->eof = 1;
cf->linenr++;
c = '\n';
}
return c;
}
static char *parse_value(void)
{
int quote = 0, comment = 0, space = 0;
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
strbuf_reset(&cf->value);
for (;;) {
int c = get_next_char();
if (c == '\n') {
if (quote) {
cf->linenr--;
return NULL;
}
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
return cf->value.buf;
}
if (comment)
continue;
if (isspace(c) && !quote) {
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
if (cf->value.len)
space++;
continue;
}
if (!quote) {
if (c == ';' || c == '#') {
comment = 1;
continue;
}
}
for (; space; space--)
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
strbuf_addch(&cf->value, ' ');
if (c == '\\') {
c = get_next_char();
switch (c) {
case '\n':
continue;
case 't':
c = '\t';
break;
case 'b':
c = '\b';
break;
case 'n':
c = '\n';
break;
/* Some characters escape as themselves */
case '\\': case '"':
break;
/* Reject unknown escape sequences */
default:
return NULL;
}
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
strbuf_addch(&cf->value, c);
continue;
}
if (c == '"') {
quote = 1-quote;
continue;
}
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
strbuf_addch(&cf->value, c);
}
}
static int get_value(config_fn_t fn, void *data, struct strbuf *name)
{
int c;
char *value;
int ret;
/* Get the full name */
for (;;) {
c = get_next_char();
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
if (cf->eof)
break;
if (!iskeychar(c))
break;
strbuf_addch(name, tolower(c));
}
while (c == ' ' || c == '\t')
c = get_next_char();
value = NULL;
if (c != '\n') {
if (c != '=')
return -1;
value = parse_value();
if (!value)
return -1;
}
/*
* We already consumed the \n, but we need linenr to point to
* the line we just parsed during the call to fn to get
* accurate line number in error messages.
*/
cf->linenr--;
ret = fn(name->buf, value, data);
if (ret >= 0)
cf->linenr++;
return ret;
}
static int get_extended_base_var(struct strbuf *name, int c)
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
{
do {
if (c == '\n')
goto error_incomplete_line;
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
c = get_next_char();
} while (isspace(c));
/* We require the format to be '[base "extension"]' */
if (c != '"')
return -1;
strbuf_addch(name, '.');
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
for (;;) {
int c = get_next_char();
if (c == '\n')
goto error_incomplete_line;
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
if (c == '"')
break;
if (c == '\\') {
c = get_next_char();
if (c == '\n')
goto error_incomplete_line;
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
}
strbuf_addch(name, c);
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
}
/* Final ']' */
if (get_next_char() != ']')
return -1;
return 0;
error_incomplete_line:
cf->linenr--;
return -1;
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
}
static int get_base_var(struct strbuf *name)
{
for (;;) {
int c = get_next_char();
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
if (cf->eof)
return -1;
if (c == ']')
return 0;
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
if (isspace(c))
return get_extended_base_var(name, c);
if (!iskeychar(c) && c != '.')
return -1;
strbuf_addch(name, tolower(c));
}
}
static int git_parse_source(config_fn_t fn, void *data)
{
int comment = 0;
int baselen = 0;
struct strbuf *var = &cf->var;
int error_return = 0;
char *error_msg = NULL;
/* U+FEFF Byte Order Mark in UTF8 */
const char *bomptr = utf8_bom;
for (;;) {
int c = get_next_char();
if (bomptr && *bomptr) {
/* We are at the file beginning; skip UTF8-encoded BOM
* if present. Sane editors won't put this in on their
* own, but e.g. Windows Notepad will do it happily. */
if (c == (*bomptr & 0377)) {
bomptr++;
continue;
} else {
/* Do not tolerate partial BOM. */
if (bomptr != utf8_bom)
break;
/* No BOM at file beginning. Cool. */
bomptr = NULL;
}
}
if (c == '\n') {
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
if (cf->eof)
return 0;
comment = 0;
continue;
}
if (comment || isspace(c))
continue;
if (c == '#' || c == ';') {
comment = 1;
continue;
}
if (c == '[') {
/* Reset prior to determining a new stem */
strbuf_reset(var);
if (get_base_var(var) < 0 || var->len < 1)
break;
strbuf_addch(var, '.');
baselen = var->len;
continue;
}
if (!isalpha(c))
break;
/*
* Truncate the var name back to the section header
* stem prior to grabbing the suffix part of the name
* and the value.
*/
strbuf_setlen(var, baselen);
strbuf_addch(var, tolower(c));
if (get_value(fn, data, var) < 0)
break;
}
switch (cf->origin_type) {
case CONFIG_ORIGIN_BLOB:
error_msg = xstrfmt(_("bad config line %d in blob %s"),
cf->linenr, cf->name);
break;
case CONFIG_ORIGIN_FILE:
error_msg = xstrfmt(_("bad config line %d in file %s"),
cf->linenr, cf->name);
break;
case CONFIG_ORIGIN_STDIN:
error_msg = xstrfmt(_("bad config line %d in standard input"),
cf->linenr);
break;
case CONFIG_ORIGIN_SUBMODULE_BLOB:
error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"),
cf->linenr, cf->name);
break;
case CONFIG_ORIGIN_CMDLINE:
error_msg = xstrfmt(_("bad config line %d in command line %s"),
cf->linenr, cf->name);
break;
default:
error_msg = xstrfmt(_("bad config line %d in %s"),
cf->linenr, cf->name);
}
if (cf->die_on_error)
die("%s", error_msg);
else
error_return = error("%s", error_msg);
free(error_msg);
return error_return;
}
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
static int parse_unit_factor(const char *end, uintmax_t *val)
{
if (!*end)
return 1;
else if (!strcasecmp(end, "k")) {
*val *= 1024;
return 1;
}
else if (!strcasecmp(end, "m")) {
*val *= 1024 * 1024;
return 1;
}
else if (!strcasecmp(end, "g")) {
*val *= 1024 * 1024 * 1024;
return 1;
}
return 0;
}
static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max)
{
if (value && *value) {
char *end;
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
intmax_t val;
uintmax_t uval;
uintmax_t factor = 1;
errno = 0;
val = strtoimax(value, &end, 0);
if (errno == ERANGE)
return 0;
if (!parse_unit_factor(end, &factor)) {
errno = EINVAL;
return 0;
}
uval = labs(val);
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
uval *= factor;
if (uval > max || labs(val) > uval) {
errno = ERANGE;
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
return 0;
}
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
val *= factor;
*ret = val;
return 1;
}
errno = EINVAL;
return 0;
}
static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max)
{
if (value && *value) {
char *end;
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
uintmax_t val;
uintmax_t oldval;
errno = 0;
val = strtoumax(value, &end, 0);
if (errno == ERANGE)
return 0;
oldval = val;
if (!parse_unit_factor(end, &val)) {
errno = EINVAL;
return 0;
}
if (val > max || oldval > val) {
errno = ERANGE;
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
return 0;
}
*ret = val;
return 1;
}
errno = EINVAL;
return 0;
}
static int git_parse_int(const char *value, int *ret)
{
intmax_t tmp;
if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int)))
return 0;
*ret = tmp;
return 1;
}
git-config: always treat --int as 64-bit internally When you run "git config --int", the maximum size of integer you get depends on how git was compiled, and what it considers to be an "int". This is almost useful, because your scripts calling "git config" will behave similarly to git internally. But relying on this is dubious; you have to actually know how git treats each value internally (e.g., int versus unsigned long), which is not documented and is subject to change. And even if you know it is "unsigned long", we do not have a git-config option to match that behavior. Furthermore, you may simply be asking git to store a value on your behalf (e.g., configuration for a hook). In that case, the relevant range check has nothing at all to do with git, but rather with whatever scripting tools you are using (and git has no way of knowing what the appropriate range is there). Not only is the range check useless, but it is actively harmful, as there is no way at all for scripts to look at config variables with large values. For instance, one cannot reliably get the value of pack.packSizeLimit via git-config. On an LP64 system, git happily uses a 64-bit "unsigned long" internally to represent the value, but the script cannot read any value over 2G. Ideally, the "--int" option would simply represent an arbitrarily large integer. For practical purposes, however, a 64-bit integer is large enough, and is much easier to implement (and if somebody overflows it, we will still notice the problem, and not simply return garbage). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-08 08:40:02 +00:00
static int git_parse_int64(const char *value, int64_t *ret)
{
intmax_t tmp;
if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t)))
return 0;
*ret = tmp;
return 1;
}
int git_parse_ulong(const char *value, unsigned long *ret)
{
uintmax_t tmp;
if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long)))
return 0;
*ret = tmp;
return 1;
}
static int git_parse_ssize_t(const char *value, ssize_t *ret)
{
intmax_t tmp;
if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(ssize_t)))
return 0;
*ret = tmp;
return 1;
}
NORETURN
static void die_bad_number(const char *name, const char *value)
{
const char * error_type = (errno == ERANGE)? _("out of range"):_("invalid unit");
if (!value)
value = "";
if (!(cf && cf->name))
die(_("bad numeric config value '%s' for '%s': %s"),
value, name, error_type);
switch (cf->origin_type) {
case CONFIG_ORIGIN_BLOB:
die(_("bad numeric config value '%s' for '%s' in blob %s: %s"),
value, name, cf->name, error_type);
case CONFIG_ORIGIN_FILE:
die(_("bad numeric config value '%s' for '%s' in file %s: %s"),
value, name, cf->name, error_type);
case CONFIG_ORIGIN_STDIN:
die(_("bad numeric config value '%s' for '%s' in standard input: %s"),
value, name, error_type);
case CONFIG_ORIGIN_SUBMODULE_BLOB:
die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"),
value, name, cf->name, error_type);
case CONFIG_ORIGIN_CMDLINE:
die(_("bad numeric config value '%s' for '%s' in command line %s: %s"),
value, name, cf->name, error_type);
default:
die(_("bad numeric config value '%s' for '%s' in %s: %s"),
value, name, cf->name, error_type);
}
}
int git_config_int(const char *name, const char *value)
{
int ret;
if (!git_parse_int(value, &ret))
die_bad_number(name, value);
return ret;
}
git-config: always treat --int as 64-bit internally When you run "git config --int", the maximum size of integer you get depends on how git was compiled, and what it considers to be an "int". This is almost useful, because your scripts calling "git config" will behave similarly to git internally. But relying on this is dubious; you have to actually know how git treats each value internally (e.g., int versus unsigned long), which is not documented and is subject to change. And even if you know it is "unsigned long", we do not have a git-config option to match that behavior. Furthermore, you may simply be asking git to store a value on your behalf (e.g., configuration for a hook). In that case, the relevant range check has nothing at all to do with git, but rather with whatever scripting tools you are using (and git has no way of knowing what the appropriate range is there). Not only is the range check useless, but it is actively harmful, as there is no way at all for scripts to look at config variables with large values. For instance, one cannot reliably get the value of pack.packSizeLimit via git-config. On an LP64 system, git happily uses a 64-bit "unsigned long" internally to represent the value, but the script cannot read any value over 2G. Ideally, the "--int" option would simply represent an arbitrarily large integer. For practical purposes, however, a 64-bit integer is large enough, and is much easier to implement (and if somebody overflows it, we will still notice the problem, and not simply return garbage). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-08 08:40:02 +00:00
int64_t git_config_int64(const char *name, const char *value)
{
int64_t ret;
if (!git_parse_int64(value, &ret))
die_bad_number(name, value);
return ret;
}
unsigned long git_config_ulong(const char *name, const char *value)
{
unsigned long ret;
if (!git_parse_ulong(value, &ret))
die_bad_number(name, value);
return ret;
}
ssize_t git_config_ssize_t(const char *name, const char *value)
{
ssize_t ret;
if (!git_parse_ssize_t(value, &ret))
die_bad_number(name, value);
return ret;
}
int git_parse_maybe_bool(const char *value)
{
if (!value)
return 1;
if (!*value)
return 0;
if (!strcasecmp(value, "true")
|| !strcasecmp(value, "yes")
|| !strcasecmp(value, "on"))
return 1;
if (!strcasecmp(value, "false")
|| !strcasecmp(value, "no")
|| !strcasecmp(value, "off"))
return 0;
return -1;
}
int git_config_maybe_bool(const char *name, const char *value)
{
int v = git_parse_maybe_bool(value);
if (0 <= v)
return v;
if (git_parse_int(value, &v))
return !!v;
return -1;
}
int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
{
int v = git_parse_maybe_bool(value);
if (0 <= v) {
*is_bool = 1;
return v;
}
*is_bool = 0;
return git_config_int(name, value);
}
int git_config_bool(const char *name, const char *value)
{
int discard;
return !!git_config_bool_or_int(name, value, &discard);
}
int git_config_string(const char **dest, const char *var, const char *value)
{
if (!value)
return config_error_nonbool(var);
*dest = xstrdup(value);
return 0;
}
int git_config_pathname(const char **dest, const char *var, const char *value)
{
if (!value)
return config_error_nonbool(var);
*dest = expand_user_path(value, 0);
if (!*dest)
die(_("failed to expand user dir in: '%s'"), value);
return 0;
}
static int git_default_core_config(const char *var, const char *value)
{
/* This needs a better name */
if (!strcmp(var, "core.filemode")) {
trust_executable_bit = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.trustctime")) {
trust_ctime = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.checkstat")) {
if (!strcasecmp(value, "default"))
check_stat = 1;
else if (!strcasecmp(value, "minimal"))
check_stat = 0;
}
if (!strcmp(var, "core.quotepath")) {
quote_path_fully = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.symlinks")) {
has_symlinks = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.ignorecase")) {
ignore_case = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.attributesfile"))
return git_config_pathname(&git_attributes_file, var, value);
if (!strcmp(var, "core.hookspath"))
return git_config_pathname(&git_hooks_path, var, value);
if (!strcmp(var, "core.bare")) {
is_bare_repository_cfg = git_config_bool(var, value);
return 0;
}
"Assume unchanged" git This adds "assume unchanged" logic, started by this message in the list discussion recently: <Pine.LNX.4.64.0601311807470.7301@g5.osdl.org> This is a workaround for filesystems that do not have lstat() that is quick enough for the index mechanism to take advantage of. On the paths marked as "assumed to be unchanged", the user needs to explicitly use update-index to register the object name to be in the next commit. You can use two new options to update-index to set and reset the CE_VALID bit: git-update-index --assume-unchanged path... git-update-index --no-assume-unchanged path... These forms manipulate only the CE_VALID bit; it does not change the object name recorded in the index file. Nor they add a new entry to the index. When the configuration variable "core.ignorestat = true" is set, the index entries are marked with CE_VALID bit automatically after: - update-index to explicitly register the current object name to the index file. - when update-index --refresh finds the path to be up-to-date. - when tools like read-tree -u and apply --index update the working tree file and register the current object name to the index file. The flag is dropped upon read-tree that does not check out the index entry. This happens regardless of the core.ignorestat settings. Index entries marked with CE_VALID bit are assumed to be unchanged most of the time. However, there are cases that CE_VALID bit is ignored for the sake of safety and usability: - while "git-read-tree -m" or git-apply need to make sure that the paths involved in the merge do not have local modifications. This sacrifices performance for safety. - when git-checkout-index -f -q -u -a tries to see if it needs to checkout the paths. Otherwise you can never check anything out ;-). - when git-update-index --really-refresh (a new flag) tries to see if the index entry is up to date. You can start with everything marked as CE_VALID and run this once to drop CE_VALID bit for paths that are modified. Most notably, "update-index --refresh" honours CE_VALID and does not actively stat, so after you modified a file in the working tree, update-index --refresh would not notice until you tell the index about it with "git-update-index path" or "git-update-index --no-assume-unchanged path". This version is not expected to be perfect. I think diff between index and/or tree and working files may need some adjustment, and there probably needs other cases we should automatically unmark paths that are marked to be CE_VALID. But the basics seem to work, and ready to be tested by people who asked for this feature. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-09 05:15:24 +00:00
if (!strcmp(var, "core.ignorestat")) {
assume_unchanged = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.prefersymlinkrefs")) {
prefer_symlink_refs = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.logallrefupdates")) {
if (value && !strcasecmp(value, "always"))
log_all_ref_updates = LOG_REFS_ALWAYS;
else if (git_config_bool(var, value))
log_all_ref_updates = LOG_REFS_NORMAL;
else
log_all_ref_updates = LOG_REFS_NONE;
return 0;
}
if (!strcmp(var, "core.warnambiguousrefs")) {
warn_ambiguous_refs = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.abbrev")) {
if (!value)
return config_error_nonbool(var);
if (!strcasecmp(value, "auto"))
default_abbrev = -1;
else {
int abbrev = git_config_int(var, value);
if (abbrev < minimum_abbrev || abbrev > 40)
return error("abbrev length out of range: %d", abbrev);
default_abbrev = abbrev;
}
return 0;
}
if (!strcmp(var, "core.disambiguate"))
return set_disambiguate_hint_config(var, value);
Custom compression levels for objects and packs Add config variables pack.compression and core.loosecompression , and switch --compression=level to pack-objects. Loose objects will be compressed using core.loosecompression if set, else core.compression if set, else Z_BEST_SPEED. Packed objects will be compressed using --compression=level if seen, else pack.compression if set, else core.compression if set, else Z_DEFAULT_COMPRESSION. This is the "pack compression level". Loose objects added to a pack undeltified will be recompressed to the pack compression level if it is unequal to the current loose compression level by the preceding rules, or if the loose object was written while core.legacyheaders = true. Newly deltified loose objects are always compressed to the current pack compression level. Previously packed objects added to a pack are recompressed to the current pack compression level exactly when their deltification status changes, since the previous pack data cannot be reused. In either case, the --no-reuse-object switch from the first patch below will always force recompression to the current pack compression level, instead of assuming the pack compression level hasn't changed and pack data can be reused when possible. This applies on top of the following patches from Nicolas Pitre: [PATCH] allow for undeltified objects not to be reused [PATCH] make "repack -f" imply "pack-objects --no-reuse-object" Signed-off-by: Dana L. How <danahow@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-09 20:56:50 +00:00
if (!strcmp(var, "core.loosecompression")) {
int level = git_config_int(var, value);
if (level == -1)
level = Z_DEFAULT_COMPRESSION;
else if (level < 0 || level > Z_BEST_COMPRESSION)
die(_("bad zlib compression level %d"), level);
zlib_compression_level = level;
Custom compression levels for objects and packs Add config variables pack.compression and core.loosecompression , and switch --compression=level to pack-objects. Loose objects will be compressed using core.loosecompression if set, else core.compression if set, else Z_BEST_SPEED. Packed objects will be compressed using --compression=level if seen, else pack.compression if set, else core.compression if set, else Z_DEFAULT_COMPRESSION. This is the "pack compression level". Loose objects added to a pack undeltified will be recompressed to the pack compression level if it is unequal to the current loose compression level by the preceding rules, or if the loose object was written while core.legacyheaders = true. Newly deltified loose objects are always compressed to the current pack compression level. Previously packed objects added to a pack are recompressed to the current pack compression level exactly when their deltification status changes, since the previous pack data cannot be reused. In either case, the --no-reuse-object switch from the first patch below will always force recompression to the current pack compression level, instead of assuming the pack compression level hasn't changed and pack data can be reused when possible. This applies on top of the following patches from Nicolas Pitre: [PATCH] allow for undeltified objects not to be reused [PATCH] make "repack -f" imply "pack-objects --no-reuse-object" Signed-off-by: Dana L. How <danahow@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-09 20:56:50 +00:00
zlib_compression_seen = 1;
return 0;
}
if (!strcmp(var, "core.compression")) {
int level = git_config_int(var, value);
if (level == -1)
level = Z_DEFAULT_COMPRESSION;
else if (level < 0 || level > Z_BEST_COMPRESSION)
die(_("bad zlib compression level %d"), level);
Custom compression levels for objects and packs Add config variables pack.compression and core.loosecompression , and switch --compression=level to pack-objects. Loose objects will be compressed using core.loosecompression if set, else core.compression if set, else Z_BEST_SPEED. Packed objects will be compressed using --compression=level if seen, else pack.compression if set, else core.compression if set, else Z_DEFAULT_COMPRESSION. This is the "pack compression level". Loose objects added to a pack undeltified will be recompressed to the pack compression level if it is unequal to the current loose compression level by the preceding rules, or if the loose object was written while core.legacyheaders = true. Newly deltified loose objects are always compressed to the current pack compression level. Previously packed objects added to a pack are recompressed to the current pack compression level exactly when their deltification status changes, since the previous pack data cannot be reused. In either case, the --no-reuse-object switch from the first patch below will always force recompression to the current pack compression level, instead of assuming the pack compression level hasn't changed and pack data can be reused when possible. This applies on top of the following patches from Nicolas Pitre: [PATCH] allow for undeltified objects not to be reused [PATCH] make "repack -f" imply "pack-objects --no-reuse-object" Signed-off-by: Dana L. How <danahow@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-09 20:56:50 +00:00
core_compression_level = level;
core_compression_seen = 1;
if (!zlib_compression_seen)
zlib_compression_level = level;
if (!pack_compression_seen)
pack_compression_level = level;
return 0;
}
Fully activate the sliding window pack access. This finally turns on the sliding window behavior for packfile data access by mapping limited size windows and chaining them under the packed_git->windows list. We consider a given byte offset to be within the window only if there would be at least 20 bytes (one hash worth of data) accessible after the requested offset. This range selection relates to the contract that use_pack() makes with its callers, allowing them to access one hash or one object header without needing to call use_pack() for every byte of data obtained. In the worst case scenario we will map the same page of data twice into memory: once at the end of one window and once again at the start of the next window. This duplicate page mapping will happen only when an object header or a delta base reference is spanned over the end of a window and is always limited to just one page of duplication, as no sane operating system will ever have a page size smaller than a hash. I am assuming that the possible wasted page of virtual address space is going to perform faster than the alternatives, which would be to copy the object header or ref delta into a temporary buffer prior to parsing, or to check the window range on every byte during header parsing. We may decide to revisit this decision in the future since this is just a gut instinct decision and has not actually been proven out by experimental testing. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-23 07:34:28 +00:00
if (!strcmp(var, "core.packedgitwindowsize")) {
int pgsz_x2 = getpagesize() * 2;
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
packed_git_window_size = git_config_ulong(var, value);
/* This value must be multiple of (pagesize * 2) */
packed_git_window_size /= pgsz_x2;
if (packed_git_window_size < 1)
packed_git_window_size = 1;
packed_git_window_size *= pgsz_x2;
Fully activate the sliding window pack access. This finally turns on the sliding window behavior for packfile data access by mapping limited size windows and chaining them under the packed_git->windows list. We consider a given byte offset to be within the window only if there would be at least 20 bytes (one hash worth of data) accessible after the requested offset. This range selection relates to the contract that use_pack() makes with its callers, allowing them to access one hash or one object header without needing to call use_pack() for every byte of data obtained. In the worst case scenario we will map the same page of data twice into memory: once at the end of one window and once again at the start of the next window. This duplicate page mapping will happen only when an object header or a delta base reference is spanned over the end of a window and is always limited to just one page of duplication, as no sane operating system will ever have a page size smaller than a hash. I am assuming that the possible wasted page of virtual address space is going to perform faster than the alternatives, which would be to copy the object header or ref delta into a temporary buffer prior to parsing, or to check the window range on every byte during header parsing. We may decide to revisit this decision in the future since this is just a gut instinct decision and has not actually been proven out by experimental testing. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-23 07:34:28 +00:00
return 0;
}
if (!strcmp(var, "core.bigfilethreshold")) {
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
big_file_threshold = git_config_ulong(var, value);
return 0;
}
if (!strcmp(var, "core.packedgitlimit")) {
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
packed_git_limit = git_config_ulong(var, value);
return 0;
}
if (!strcmp(var, "core.deltabasecachelimit")) {
Support sizes >=2G in various config options accepting 'g' sizes. The config options core.packedGitWindowSize, core.packedGitLimit, core.deltaBaseCacheLimit, core.bigFileThreshold, pack.windowMemory and pack.packSizeLimit all claim to support suffixes up to and including 'g'. This implies that they should accept sizes >=2G on 64-bit systems: certainly, specifying a size of 3g should not silently be translated to zero or transformed into a large negative value due to integer overflow. However, due to use of git_config_int() rather than git_config_ulong(), that is exactly what happens: % git config core.bigFileThreshold 2g % git gc --aggressive # with extra debugging code to print out # core.bigfilethreshold after parsing bigfilethreshold: -2147483648 [...] This is probably irrelevant for core.deltaBaseCacheLimit, but is problematic for the other values. (It is particularly problematic for core.packedGitLimit, which can't even be set to its default value in the config file due to this bug.) This fixes things for 32-bit platforms as well. They get the usual bad config error if an overlarge value is specified, e.g.: fatal: bad config value for 'core.bigfilethreshold' in /home/nix/.gitconfig This is detected in all cases, even if the 32-bit platform has no size larger than 'long'. For signed integral configuration values, we also detect the case where the value is too large for the signed type but not the unsigned type. Signed-off-by: Nick Alcock <nix@esperi.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-11-02 15:46:23 +00:00
delta_base_cache_limit = git_config_ulong(var, value);
return 0;
}
Lazy man's auto-CRLF It currently does NOT know about file attributes, so it does its conversion purely based on content. Maybe that is more in the "git philosophy" anyway, since content is king, but I think we should try to do the file attributes to turn it off on demand. Anyway, BY DEFAULT it is off regardless, because it requires a [core] AutoCRLF = true in your config file to be enabled. We could make that the default for Windows, of course, the same way we do some other things (filemode etc). But you can actually enable it on UNIX, and it will cause: - "git update-index" will write blobs without CRLF - "git diff" will diff working tree files without CRLF - "git checkout" will write files to the working tree _with_ CRLF and things work fine. Funnily, it actually shows an odd file in git itself: git clone -n git test-crlf cd test-crlf git config core.autocrlf true git checkout git diff shows a diff for "Documentation/docbook-xsl.css". Why? Because we have actually checked in that file *with* CRLF! So when "core.autocrlf" is true, we'll always generate a *different* hash for it in the index, because the index hash will be for the content _without_ CRLF. Is this complete? I dunno. It seems to work for me. It doesn't use the filename at all right now, and that's probably a deficiency (we could certainly make the "is_binary()" heuristics also take standard filename heuristics into account). I don't pass in the filename at all for the "index_fd()" case (git-update-index), so that would need to be passed around, but this actually works fine. NOTE NOTE NOTE! The "is_binary()" heuristics are totally made-up by yours truly. I will not guarantee that they work at all reasonable. Caveat emptor. But it _is_ simple, and it _is_ safe, since it's all off by default. The patch is pretty simple - the biggest part is the new "convert.c" file, but even that is really just basic stuff that anybody can write in "Teaching C 101" as a final project for their first class in programming. Not to say that it's bug-free, of course - but at least we're not talking about rocket surgery here. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-13 19:07:23 +00:00
if (!strcmp(var, "core.autocrlf")) {
if (value && !strcasecmp(value, "input")) {
auto_crlf = AUTO_CRLF_INPUT;
return 0;
}
Lazy man's auto-CRLF It currently does NOT know about file attributes, so it does its conversion purely based on content. Maybe that is more in the "git philosophy" anyway, since content is king, but I think we should try to do the file attributes to turn it off on demand. Anyway, BY DEFAULT it is off regardless, because it requires a [core] AutoCRLF = true in your config file to be enabled. We could make that the default for Windows, of course, the same way we do some other things (filemode etc). But you can actually enable it on UNIX, and it will cause: - "git update-index" will write blobs without CRLF - "git diff" will diff working tree files without CRLF - "git checkout" will write files to the working tree _with_ CRLF and things work fine. Funnily, it actually shows an odd file in git itself: git clone -n git test-crlf cd test-crlf git config core.autocrlf true git checkout git diff shows a diff for "Documentation/docbook-xsl.css". Why? Because we have actually checked in that file *with* CRLF! So when "core.autocrlf" is true, we'll always generate a *different* hash for it in the index, because the index hash will be for the content _without_ CRLF. Is this complete? I dunno. It seems to work for me. It doesn't use the filename at all right now, and that's probably a deficiency (we could certainly make the "is_binary()" heuristics also take standard filename heuristics into account). I don't pass in the filename at all for the "index_fd()" case (git-update-index), so that would need to be passed around, but this actually works fine. NOTE NOTE NOTE! The "is_binary()" heuristics are totally made-up by yours truly. I will not guarantee that they work at all reasonable. Caveat emptor. But it _is_ simple, and it _is_ safe, since it's all off by default. The patch is pretty simple - the biggest part is the new "convert.c" file, but even that is really just basic stuff that anybody can write in "Teaching C 101" as a final project for their first class in programming. Not to say that it's bug-free, of course - but at least we're not talking about rocket surgery here. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-13 19:07:23 +00:00
auto_crlf = git_config_bool(var, value);
return 0;
}
safecrlf: Add mechanism to warn about irreversible crlf conversions CRLF conversion bears a slight chance of corrupting data. autocrlf=true will convert CRLF to LF during commit and LF to CRLF during checkout. A file that contains a mixture of LF and CRLF before the commit cannot be recreated by git. For text files this is the right thing to do: it corrects line endings such that we have only LF line endings in the repository. But for binary files that are accidentally classified as text the conversion can corrupt data. If you recognize such corruption early you can easily fix it by setting the conversion type explicitly in .gitattributes. Right after committing you still have the original file in your work tree and this file is not yet corrupted. You can explicitly tell git that this file is binary and git will handle the file appropriately. Unfortunately, the desired effect of cleaning up text files with mixed line endings and the undesired effect of corrupting binary files cannot be distinguished. In both cases CRLFs are removed in an irreversible way. For text files this is the right thing to do because CRLFs are line endings, while for binary files converting CRLFs corrupts data. This patch adds a mechanism that can either warn the user about an irreversible conversion or can even refuse to convert. The mechanism is controlled by the variable core.safecrlf, with the following values: - false: disable safecrlf mechanism - warn: warn about irreversible conversions - true: refuse irreversible conversions The default is to warn. Users are only affected by this default if core.autocrlf is set. But the current default of git is to leave core.autocrlf unset, so users will not see warnings unless they deliberately chose to activate the autocrlf mechanism. The safecrlf mechanism's details depend on the git command. The general principles when safecrlf is active (not false) are: - we warn/error out if files in the work tree can modified in an irreversible way without giving the user a chance to backup the original file. - for read-only operations that do not modify files in the work tree we do not not print annoying warnings. There are exceptions. Even though... - "git add" itself does not touch the files in the work tree, the next checkout would, so the safety triggers; - "git apply" to update a text file with a patch does touch the files in the work tree, but the operation is about text files and CRLF conversion is about fixing the line ending inconsistencies, so the safety does not trigger; - "git diff" itself does not touch the files in the work tree, it is often run to inspect the changes you intend to next "git add". To catch potential problems early, safety triggers. The concept of a safety check was originally proposed in a similar way by Linus Torvalds. Thanks to Dimitry Potapov for insisting on getting the naked LF/autocrlf=true case right. Signed-off-by: Steffen Prohaska <prohaska@zib.de>
2008-02-06 11:25:58 +00:00
if (!strcmp(var, "core.safecrlf")) {
if (value && !strcasecmp(value, "warn")) {
safe_crlf = SAFE_CRLF_WARN;
return 0;
}
safe_crlf = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.eol")) {
if (value && !strcasecmp(value, "lf"))
core_eol = EOL_LF;
else if (value && !strcasecmp(value, "crlf"))
core_eol = EOL_CRLF;
else if (value && !strcasecmp(value, "native"))
core_eol = EOL_NATIVE;
else
core_eol = EOL_UNSET;
return 0;
}
if (!strcmp(var, "core.notesref")) {
notes_ref_name = xstrdup(value);
return 0;
}
if (!strcmp(var, "core.editor"))
return git_config_string(&editor_program, var, value);
if (!strcmp(var, "core.commentchar")) {
if (!value)
return config_error_nonbool(var);
else if (!strcasecmp(value, "auto"))
auto_comment_line_char = 1;
else if (value[0] && !value[1]) {
comment_line_char = value[0];
auto_comment_line_char = 0;
} else
return error("core.commentChar should only be one character");
return 0;
}
if (!strcmp(var, "core.askpass"))
return git_config_string(&askpass_program, var, value);
if (!strcmp(var, "core.excludesfile"))
return git_config_pathname(&excludes_file, var, value);
if (!strcmp(var, "core.whitespace")) {
if (!value)
return config_error_nonbool(var);
whitespace_rule_cfg = parse_whitespace_rule(value);
return 0;
}
if (!strcmp(var, "core.fsyncobjectfiles")) {
fsync_object_files = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.preloadindex")) {
core_preload_index = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.createobject")) {
if (!strcmp(value, "rename"))
object_creation_mode = OBJECT_CREATION_USES_RENAMES;
else if (!strcmp(value, "link"))
object_creation_mode = OBJECT_CREATION_USES_HARDLINKS;
else
die(_("invalid mode for object creation: %s"), value);
return 0;
}
if (!strcmp(var, "core.sparsecheckout")) {
core_apply_sparse_checkout = git_config_bool(var, value);
return 0;
}
git on Mac OS and precomposed unicode Mac OS X mangles file names containing unicode on file systems HFS+, VFAT or SAMBA. When a file using unicode code points outside ASCII is created on a HFS+ drive, the file name is converted into decomposed unicode and written to disk. No conversion is done if the file name is already decomposed unicode. Calling open("\xc3\x84", ...) with a precomposed "Ä" yields the same result as open("\x41\xcc\x88",...) with a decomposed "Ä". As a consequence, readdir() returns the file names in decomposed unicode, even if the user expects precomposed unicode. Unlike on HFS+, Mac OS X stores files on a VFAT drive (e.g. an USB drive) in precomposed unicode, but readdir() still returns file names in decomposed unicode. When a git repository is stored on a network share using SAMBA, file names are send over the wire and written to disk on the remote system in precomposed unicode, but Mac OS X readdir() returns decomposed unicode to be compatible with its behaviour on HFS+ and VFAT. The unicode decomposition causes many problems: - The names "git add" and other commands get from the end user may often be precomposed form (the decomposed form is not easily input from the keyboard), but when the commands read from the filesystem to see what it is going to update the index with already is on the filesystem, readdir() will give decomposed form, which is different. - Similarly "git log", "git mv" and all other commands that need to compare pathnames found on the command line (often but not always precomposed form; a command line input resulting from globbing may be in decomposed) with pathnames found in the tree objects (should be precomposed form to be compatible with other systems and for consistency in general). - The same for names stored in the index, which should be precomposed, that may need to be compared with the names read from readdir(). NFS mounted from Linux is fully transparent and does not suffer from the above. As Mac OS X treats precomposed and decomposed file names as equal, we can - wrap readdir() on Mac OS X to return the precomposed form, and - normalize decomposed form given from the command line also to the precomposed form, to ensure that all pathnames used in Git are always in the precomposed form. This behaviour can be requested by setting "core.precomposedunicode" configuration variable to true. The code in compat/precomposed_utf8.c implements basically 4 new functions: precomposed_utf8_opendir(), precomposed_utf8_readdir(), precomposed_utf8_closedir() and precompose_argv(). The first three are to wrap opendir(3), readdir(3), and closedir(3) functions. The argv[] conversion allows to use the TAB filename completion done by the shell on command line. It tolerates other tools which use readdir() to feed decomposed file names into git. When creating a new git repository with "git init" or "git clone", "core.precomposedunicode" will be set "false". The user needs to activate this feature manually. She typically sets core.precomposedunicode to "true" on HFS and VFAT, or file systems mounted via SAMBA. Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-08 13:50:25 +00:00
if (!strcmp(var, "core.precomposeunicode")) {
precomposed_unicode = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.protecthfs")) {
protect_hfs = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.protectntfs")) {
protect_ntfs = git_config_bool(var, value);
return 0;
git on Mac OS and precomposed unicode Mac OS X mangles file names containing unicode on file systems HFS+, VFAT or SAMBA. When a file using unicode code points outside ASCII is created on a HFS+ drive, the file name is converted into decomposed unicode and written to disk. No conversion is done if the file name is already decomposed unicode. Calling open("\xc3\x84", ...) with a precomposed "Ä" yields the same result as open("\x41\xcc\x88",...) with a decomposed "Ä". As a consequence, readdir() returns the file names in decomposed unicode, even if the user expects precomposed unicode. Unlike on HFS+, Mac OS X stores files on a VFAT drive (e.g. an USB drive) in precomposed unicode, but readdir() still returns file names in decomposed unicode. When a git repository is stored on a network share using SAMBA, file names are send over the wire and written to disk on the remote system in precomposed unicode, but Mac OS X readdir() returns decomposed unicode to be compatible with its behaviour on HFS+ and VFAT. The unicode decomposition causes many problems: - The names "git add" and other commands get from the end user may often be precomposed form (the decomposed form is not easily input from the keyboard), but when the commands read from the filesystem to see what it is going to update the index with already is on the filesystem, readdir() will give decomposed form, which is different. - Similarly "git log", "git mv" and all other commands that need to compare pathnames found on the command line (often but not always precomposed form; a command line input resulting from globbing may be in decomposed) with pathnames found in the tree objects (should be precomposed form to be compatible with other systems and for consistency in general). - The same for names stored in the index, which should be precomposed, that may need to be compared with the names read from readdir(). NFS mounted from Linux is fully transparent and does not suffer from the above. As Mac OS X treats precomposed and decomposed file names as equal, we can - wrap readdir() on Mac OS X to return the precomposed form, and - normalize decomposed form given from the command line also to the precomposed form, to ensure that all pathnames used in Git are always in the precomposed form. This behaviour can be requested by setting "core.precomposedunicode" configuration variable to true. The code in compat/precomposed_utf8.c implements basically 4 new functions: precomposed_utf8_opendir(), precomposed_utf8_readdir(), precomposed_utf8_closedir() and precompose_argv(). The first three are to wrap opendir(3), readdir(3), and closedir(3) functions. The argv[] conversion allows to use the TAB filename completion done by the shell on command line. It tolerates other tools which use readdir() to feed decomposed file names into git. When creating a new git repository with "git init" or "git clone", "core.precomposedunicode" will be set "false". The user needs to activate this feature manually. She typically sets core.precomposedunicode to "true" on HFS and VFAT, or file systems mounted via SAMBA. Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-08 13:50:25 +00:00
}
mingw: introduce the 'core.hideDotFiles' setting On Unix (and Linux), files and directories whose names start with a dot are usually not shown by default. This convention is used by Git: the .git/ directory should be left alone by regular users, and only accessed through Git itself. On Windows, no such convention exists. Instead, there is an explicit flag to mark files or directories as hidden. In the early days, Git for Windows did not mark the .git/ directory (or for that matter, any file or directory whose name starts with a dot) hidden. This lead to quite a bit of confusion, and even loss of data. Consequently, Git for Windows introduced the core.hideDotFiles setting, with three possible values: true, false, and dotGitOnly, defaulting to marking only the .git/ directory as hidden. The rationale: users do not need to access .git/ directly, and indeed (as was demonstrated) should not really see that directory, either. However, not all dot files should be hidden by default, as e.g. Eclipse does not show them (and the user would therefore be unable to see, say, a .gitattributes file). In over five years since the last attempt to bring this patch into core Git, a slightly buggy version of this patch has served Git for Windows' users well: no single report indicated problems with the hidden .git/ directory, and the stream of problems caused by the previously non-hidden .git/ directory simply stopped. The bugs have been fixed during the process of getting this patch upstream. Note that there is a funny quirk we have to pay attention to when creating hidden files: we use Win32's _wopen() function which transmogrifies its arguments and hands off to Win32's CreateFile() function. That latter function errors out with ERROR_ACCESS_DENIED (the equivalent of EACCES) when the equivalent of the O_CREAT flag was passed and the file attributes (including the hidden flag) do not match an existing file's. And _wopen() accepts no parameter that would be transmogrified into said hidden flag. Therefore, we simply try again without O_CREAT. A slightly different method is required for our fopen()/freopen() function as we cannot even *remove* the implicit O_CREAT flag. Therefore, we briefly mark existing files as unhidden when opening them via fopen()/freopen(). The ERROR_ACCESS_DENIED error can also be triggered by opening a file that is marked as a system file (which is unlikely to be tracked in Git), and by trying to create a file that has *just* been deleted and is awaiting the last open handles to be released (which would be handled better by the "Try again?" logic, a story for a different patch series, though). In both cases, it does not matter much if we try again without the O_CREAT flag, read: it does not hurt, either. For details how ERROR_ACCESS_DENIED can be triggered, see https://msdn.microsoft.com/en-us/library/windows/desktop/aa363858 Original-patch-by: Erik Faye-Lund <kusmabite@gmail.com> Initial-Test-By: Pat Thoyts <patthoyts@users.sourceforge.net> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-05-11 08:43:37 +00:00
if (!strcmp(var, "core.hidedotfiles")) {
if (value && !strcasecmp(value, "dotgitonly"))
hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
else
hide_dotfiles = git_config_bool(var, value);
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
static int git_default_i18n_config(const char *var, const char *value)
{
if (!strcmp(var, "i18n.commitencoding"))
return git_config_string(&git_commit_encoding, var, value);
if (!strcmp(var, "i18n.logoutputencoding"))
return git_config_string(&git_log_output_encoding, var, value);
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
core.excludesfile clean-up There are inconsistencies in the way commands currently handle the core.excludesfile configuration variable. The problem is the variable is too new to be noticed by anything other than git-add and git-status. * git-ls-files does not notice any of the "ignore" files by default, as it predates the standardized set of ignore files. The calling scripts established the convention to use .git/info/exclude, .gitignore, and later core.excludesfile. * git-add and git-status know about it because they call add_excludes_from_file() directly with their own notion of which standard set of ignore files to use. This is just a stupid duplication of code that need to be updated every time the definition of the standard set of ignore files is changed. * git-read-tree takes --exclude-per-directory=<gitignore>, not because the flexibility was needed. Again, this was because the option predates the standardization of the ignore files. * git-merge-recursive uses hardcoded per-directory .gitignore and nothing else. git-clean (scripted version) does not honor core.* because its call to underlying ls-files does not know about it. git-clean in C (parked in 'pu') doesn't either. We probably could change git-ls-files to use the standard set when no excludes are specified on the command line and ignore processing was asked, or something like that, but that will be a change in semantics and might break people's scripts in a subtle way. I am somewhat reluctant to make such a change. On the other hand, I think it makes perfect sense to fix git-read-tree, git-merge-recursive and git-clean to follow the same rule as other commands. I do not think of a valid use case to give an exclude-per-directory that is nonstandard to read-tree command, outside a "negative" test in the t1004 test script. This patch is the first step to untangle this mess. The next step would be to teach read-tree, merge-recursive and clean (in C) to use setup_standard_excludes(). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-14 08:05:00 +00:00
static int git_default_branch_config(const char *var, const char *value)
{
if (!strcmp(var, "branch.autosetupmerge")) {
if (value && !strcasecmp(value, "always")) {
git_branch_track = BRANCH_TRACK_ALWAYS;
return 0;
}
git_branch_track = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "branch.autosetuprebase")) {
if (!value)
return config_error_nonbool(var);
else if (!strcmp(value, "never"))
autorebase = AUTOREBASE_NEVER;
else if (!strcmp(value, "local"))
autorebase = AUTOREBASE_LOCAL;
else if (!strcmp(value, "remote"))
autorebase = AUTOREBASE_REMOTE;
else if (!strcmp(value, "always"))
autorebase = AUTOREBASE_ALWAYS;
else
return error("malformed value for %s", var);
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
static int git_default_push_config(const char *var, const char *value)
{
if (!strcmp(var, "push.default")) {
if (!value)
return config_error_nonbool(var);
else if (!strcmp(value, "nothing"))
push_default = PUSH_DEFAULT_NOTHING;
else if (!strcmp(value, "matching"))
push_default = PUSH_DEFAULT_MATCHING;
else if (!strcmp(value, "simple"))
push_default = PUSH_DEFAULT_SIMPLE;
else if (!strcmp(value, "upstream"))
push_default = PUSH_DEFAULT_UPSTREAM;
else if (!strcmp(value, "tracking")) /* deprecated */
push_default = PUSH_DEFAULT_UPSTREAM;
else if (!strcmp(value, "current"))
push_default = PUSH_DEFAULT_CURRENT;
else {
error("malformed value for %s: %s", var, value);
return error("Must be one of nothing, matching, simple, "
"upstream or current.");
}
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
static int git_default_mailmap_config(const char *var, const char *value)
{
if (!strcmp(var, "mailmap.file"))
return git_config_pathname(&git_mailmap_file, var, value);
if (!strcmp(var, "mailmap.blob"))
return git_config_string(&git_mailmap_blob, var, value);
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
int git_default_config(const char *var, const char *value, void *dummy)
{
if (starts_with(var, "core."))
return git_default_core_config(var, value);
if (starts_with(var, "user."))
return git_ident_config(var, value, dummy);
if (starts_with(var, "i18n."))
return git_default_i18n_config(var, value);
if (starts_with(var, "branch."))
return git_default_branch_config(var, value);
if (starts_with(var, "push."))
return git_default_push_config(var, value);
if (starts_with(var, "mailmap."))
return git_default_mailmap_config(var, value);
if (starts_with(var, "advice."))
return git_default_advice_config(var, value);
if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
pager_use_color = git_config_bool(var,value);
return 0;
}
if (!strcmp(var, "pack.packsizelimit")) {
pack_size_limit_cfg = git_config_ulong(var, value);
return 0;
}
if (!strcmp(var, "pack.compression")) {
int level = git_config_int(var, value);
if (level == -1)
level = Z_DEFAULT_COMPRESSION;
else if (level < 0 || level > Z_BEST_COMPRESSION)
die(_("bad pack compression level %d"), level);
pack_compression_level = level;
pack_compression_seen = 1;
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
/*
* All source specific fields in the union, die_on_error, name and the callbacks
* fgetc, ungetc, ftell of top need to be initialized before calling
* this function.
*/
static int do_config_from(struct config_source *top, config_fn_t fn, void *data)
{
int ret;
/* push config-file parsing state stack */
top->prev = cf;
top->linenr = 1;
top->eof = 0;
strbuf_init(&top->value, 1024);
strbuf_init(&top->var, 1024);
cf = top;
ret = git_parse_source(fn, data);
/* pop config-file parsing state stack */
strbuf_release(&top->value);
strbuf_release(&top->var);
cf = top->prev;
return ret;
}
static int do_config_from_file(config_fn_t fn,
const enum config_origin_type origin_type,
const char *name, const char *path, FILE *f,
void *data)
{
struct config_source top;
top.u.file = f;
top.origin_type = origin_type;
top.name = name;
top.path = path;
top.die_on_error = 1;
top.do_fgetc = config_file_fgetc;
top.do_ungetc = config_file_ungetc;
top.do_ftell = config_file_ftell;
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
return do_config_from(&top, fn, data);
}
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
static int git_config_from_stdin(config_fn_t fn, void *data)
{
return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, data);
}
int git_config_from_file(config_fn_t fn, const char *filename, void *data)
{
int ret = -1;
FILE *f;
config.c: Make git_config() work correctly when called recursively On Cygwin, this fixes a test failure in t3301-notes.sh (test 98, "git notes copy --for-rewrite (disabled)"). The test failure is caused by a recursive call to git_config() which has the effect of skipping to the end-of-file while processing the "notes.rewriteref" config variable. Thus, any config variables that appear after "notes.rewriteref" are simply ignored by git_config(). Also, we note that the original FILE handle is leaked as a result of the recursive call. The recursive call to git_config() is due to the "schizophrenic stat" functions on cygwin, where one of two different implementations of the l/stat functions is selected lazily, depending on some config variables. In this case, the init_copy_notes_for_rewrite() function calls git_config() with the notes_rewrite_config() callback function. This callback, while processing the "notes.rewriteref" variable, in turn calls string_list_add_refs_by_glob() to process the associated ref value. This eventually leads to a call to the get_ref_dir() function, which in turn calls stat(). On cygwin, the stat() macro leads to an indirect call to cygwin_stat_stub() which, via init_stat(), then calls git_config() in order to determine which l/stat implementation to bind to. In order to solve this problem, we modify git_config() so that the global state variables used by the config reading code is packaged up and managed on a local state stack. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-16 20:24:51 +00:00
f = fopen_or_warn(filename, "r");
if (f) {
flockfile(f);
ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, filename, f, data);
funlockfile(f);
fclose(f);
}
return ret;
}
int git_config_from_mem(config_fn_t fn, const enum config_origin_type origin_type,
const char *name, const char *buf, size_t len, void *data)
{
struct config_source top;
top.u.buf.buf = buf;
top.u.buf.len = len;
top.u.buf.pos = 0;
top.origin_type = origin_type;
top.name = name;
top.path = NULL;
top.die_on_error = 0;
top.do_fgetc = config_buf_fgetc;
top.do_ungetc = config_buf_ungetc;
top.do_ftell = config_buf_ftell;
return do_config_from(&top, fn, data);
}
int git_config_from_blob_sha1(config_fn_t fn,
const char *name,
const unsigned char *sha1,
void *data)
{
enum object_type type;
char *buf;
unsigned long size;
int ret;
buf = read_sha1_file(sha1, &type, &size);
if (!buf)
return error("unable to load config blob object '%s'", name);
if (type != OBJ_BLOB) {
free(buf);
return error("reference '%s' does not point to a blob", name);
}
ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size, data);
free(buf);
return ret;
}
static int git_config_from_blob_ref(config_fn_t fn,
const char *name,
void *data)
{
unsigned char sha1[20];
if (get_sha1(name, sha1) < 0)
return error("unable to resolve config blob '%s'", name);
return git_config_from_blob_sha1(fn, name, sha1, data);
}
const char *git_etc_gitconfig(void)
{
static const char *system_wide;
if (!system_wide)
system_wide = system_path(ETC_GITCONFIG);
return system_wide;
}
/*
* Parse environment variable 'k' as a boolean (in various
* possible spellings); if missing, use the default value 'def'.
*/
int git_env_bool(const char *k, int def)
{
const char *v = getenv(k);
return v ? git_config_bool(k, v) : def;
}
/*
* Parse environment variable 'k' as ulong with possibly a unit
* suffix; if missing, use the default value 'val'.
*/
unsigned long git_env_ulong(const char *k, unsigned long val)
{
const char *v = getenv(k);
if (v && !git_parse_ulong(v, &val))
die("failed to parse %s", k);
return val;
}
int git_config_system(void)
{
return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
}
static int do_git_config_sequence(const struct config_options *opts,
config_fn_t fn, void *data)
{
int ret = 0;
char *xdg_config = xdg_config_home("config");
char *user_config = expand_user_path("~/.gitconfig", 0);
char *repo_config;
if (opts->commondir)
repo_config = mkpathdup("%s/config", opts->commondir);
else
repo_config = NULL;
current_parsing_scope = CONFIG_SCOPE_SYSTEM;
if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, 0))
ret += git_config_from_file(fn, git_etc_gitconfig(),
data);
current_parsing_scope = CONFIG_SCOPE_GLOBAL;
if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK))
ret += git_config_from_file(fn, xdg_config, data);
if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK))
ret += git_config_from_file(fn, user_config, data);
current_parsing_scope = CONFIG_SCOPE_REPO;
if (repo_config && !access_or_die(repo_config, R_OK, 0))
ret += git_config_from_file(fn, repo_config, data);
current_parsing_scope = CONFIG_SCOPE_CMDLINE;
if (git_config_from_parameters(fn, data) < 0)
die(_("unable to parse command-line config"));
current_parsing_scope = CONFIG_SCOPE_UNKNOWN;
free(xdg_config);
free(user_config);
free(repo_config);
return ret;
}
int config_with_options(config_fn_t fn, void *data,
struct git_config_source *config_source,
const struct config_options *opts)
{
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
struct config_include_data inc = CONFIG_INCLUDE_INIT;
if (opts->respect_includes) {
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
inc.fn = fn;
inc.data = data;
inc.opts = opts;
config: add include directive It can be useful to split your ~/.gitconfig across multiple files. For example, you might have a "main" file which is used on many machines, but a small set of per-machine tweaks. Or you may want to make some of your config public (e.g., clever aliases) while keeping other data back (e.g., your name or other identifying information). Or you may want to include a number of config options in some subset of your repos without copying and pasting (e.g., you want to reference them from the .git/config of participating repos). This patch introduces an include directive for config files. It looks like: [include] path = /path/to/file This is syntactically backwards-compatible with existing git config parsers (i.e., they will see it as another config entry and ignore it unless you are looking up include.path). The implementation provides a "git_config_include" callback which wraps regular config callbacks. Callers can pass it to git_config_from_file, and it will transparently follow any include directives, passing all of the discovered options to the real callback. Include directives are turned on automatically for "regular" git config parsing. This includes calls to git_config, as well as calls to the "git config" program that do not specify a single file (e.g., using "-f", "--global", etc). They are not turned on in other cases, including: 1. Parsing of other config-like files, like .gitmodules. There isn't a real need, and I'd rather be conservative and avoid unnecessary incompatibility or confusion. 2. Reading single files via "git config". This is for two reasons: a. backwards compatibility with scripts looking at config-like files. b. inspection of a specific file probably means you care about just what's in that file, not a general lookup for "do we have this value anywhere at all". If that is not the case, the caller can always specify "--includes". 3. Writing files via "git config"; we want to treat include.* variables as literal items to be copied (or modified), and not expand them. So "git config --unset-all foo.bar" would operate _only_ on .git/config, not any of its included files (just as it also does not operate on ~/.gitconfig). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-06 09:54:04 +00:00
fn = git_config_include;
data = &inc;
}
/*
* If we have a specific filename, use it. Otherwise, follow the
* regular lookup sequence.
*/
if (config_source && config_source->use_stdin)
return git_config_from_stdin(fn, data);
else if (config_source && config_source->file)
return git_config_from_file(fn, config_source->file, data);
else if (config_source && config_source->blob)
return git_config_from_blob_ref(fn, config_source->blob, data);
return do_git_config_sequence(opts, fn, data);
}
static void configset_iter(struct config_set *cs, config_fn_t fn, void *data)
{
int i, value_index;
struct string_list *values;
struct config_set_element *entry;
struct configset_list *list = &cs->list;
for (i = 0; i < list->nr; i++) {
entry = list->items[i].e;
value_index = list->items[i].value_index;
values = &entry->value_list;
current_config_kvi = values->items[value_index].util;
if (fn(entry->key, values->items[value_index].string, data) < 0)
git_die_config_linenr(entry->key,
current_config_kvi->filename,
current_config_kvi->linenr);
current_config_kvi = NULL;
}
}
void read_early_config(config_fn_t cb, void *data)
{
struct config_options opts = {0};
struct strbuf commondir = STRBUF_INIT;
struct strbuf gitdir = STRBUF_INIT;
opts.respect_includes = 1;
if (have_git_dir()) {
opts.commondir = get_git_common_dir();
opts.git_dir = get_git_dir();
/*
* When setup_git_directory() was not yet asked to discover the
* GIT_DIR, we ask discover_git_directory() to figure out whether there
* is any repository config we should use (but unlike
* setup_git_directory_gently(), no global state is changed, most
* notably, the current working directory is still the same after the
* call).
*/
} else if (!discover_git_directory(&commondir, &gitdir)) {
opts.commondir = commondir.buf;
opts.git_dir = gitdir.buf;
}
config_with_options(cb, data, NULL, &opts);
strbuf_release(&commondir);
strbuf_release(&gitdir);
}
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)
{
struct config_set_element k;
struct config_set_element *found_entry;
char *normalized_key;
/*
* `key` may come from the user, so normalize it before using it
* for querying entries from the hashmap.
*/
if (git_config_parse_key(key, &normalized_key, NULL))
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
return NULL;
hashmap_entry_init(&k, strhash(normalized_key));
k.key = normalized_key;
found_entry = hashmap_get(&cs->config_hash, &k, NULL);
free(normalized_key);
return found_entry;
}
static int configset_add_value(struct config_set *cs, const char *key, const char *value)
{
struct config_set_element *e;
struct string_list_item *si;
struct configset_list_item *l_item;
struct key_value_info *kv_info = xmalloc(sizeof(*kv_info));
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
e = configset_find_element(cs, key);
/*
* Since the keys are being fed by git_config*() callback mechanism, they
* are already normalized. So simply add them without any further munging.
*/
if (!e) {
e = xmalloc(sizeof(*e));
hashmap_entry_init(e, strhash(key));
e->key = xstrdup(key);
string_list_init(&e->value_list, 1);
hashmap_add(&cs->config_hash, e);
}
si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value));
ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc);
l_item = &cs->list.items[cs->list.nr++];
l_item->e = e;
l_item->value_index = e->value_list.nr - 1;
if (!cf)
die("BUG: configset_add_value has no source");
if (cf->name) {
kv_info->filename = strintern(cf->name);
kv_info->linenr = cf->linenr;
kv_info->origin_type = cf->origin_type;
} else {
/* for values read from `git_config_from_parameters()` */
kv_info->filename = NULL;
kv_info->linenr = -1;
kv_info->origin_type = CONFIG_ORIGIN_CMDLINE;
}
kv_info->scope = current_parsing_scope;
si->util = kv_info;
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
return 0;
}
static int config_set_element_cmp(const void *unused_cmp_data,
const struct config_set_element *e1,
const struct config_set_element *e2,
const void *unused_keydata)
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
{
return strcmp(e1->key, e2->key);
}
void git_configset_init(struct config_set *cs)
{
hashmap_init(&cs->config_hash, (hashmap_cmp_fn)config_set_element_cmp,
NULL, 0);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
cs->hash_initialized = 1;
cs->list.nr = 0;
cs->list.alloc = 0;
cs->list.items = NULL;
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
void git_configset_clear(struct config_set *cs)
{
struct config_set_element *entry;
struct hashmap_iter iter;
if (!cs->hash_initialized)
return;
hashmap_iter_init(&cs->config_hash, &iter);
while ((entry = hashmap_iter_next(&iter))) {
free(entry->key);
string_list_clear(&entry->value_list, 1);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
hashmap_free(&cs->config_hash, 1);
cs->hash_initialized = 0;
free(cs->list.items);
cs->list.nr = 0;
cs->list.alloc = 0;
cs->list.items = NULL;
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
static int config_set_callback(const char *key, const char *value, void *cb)
{
struct config_set *cs = cb;
configset_add_value(cs, key, value);
return 0;
}
int git_configset_add_file(struct config_set *cs, const char *filename)
{
return git_config_from_file(config_set_callback, filename, cs);
}
int git_configset_get_value(struct config_set *cs, const char *key, const char **value)
{
const struct string_list *values = NULL;
/*
* Follows "last one wins" semantic, i.e., if there are multiple matches for the
* queried key in the files of the configset, the value returned will be the last
* value in the value list for that key.
*/
values = git_configset_get_value_multi(cs, key);
if (!values)
return 1;
assert(values->nr > 0);
*value = values->items[values->nr - 1].string;
return 0;
}
const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key)
{
struct config_set_element *e = configset_find_element(cs, key);
return e ? &e->value_list : NULL;
}
int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest)
{
const char *value;
if (!git_configset_get_value(cs, key, &value))
return git_config_string(dest, key, value);
else
return 1;
}
int git_configset_get_string(struct config_set *cs, const char *key, char **dest)
{
return git_configset_get_string_const(cs, key, (const char **)dest);
}
int git_configset_get_int(struct config_set *cs, const char *key, int *dest)
{
const char *value;
if (!git_configset_get_value(cs, key, &value)) {
*dest = git_config_int(key, value);
return 0;
} else
return 1;
}
int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest)
{
const char *value;
if (!git_configset_get_value(cs, key, &value)) {
*dest = git_config_ulong(key, value);
return 0;
} else
return 1;
}
int git_configset_get_bool(struct config_set *cs, const char *key, int *dest)
{
const char *value;
if (!git_configset_get_value(cs, key, &value)) {
*dest = git_config_bool(key, value);
return 0;
} else
return 1;
}
int git_configset_get_bool_or_int(struct config_set *cs, const char *key,
int *is_bool, int *dest)
{
const char *value;
if (!git_configset_get_value(cs, key, &value)) {
*dest = git_config_bool_or_int(key, value, is_bool);
return 0;
} else
return 1;
}
int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest)
{
const char *value;
if (!git_configset_get_value(cs, key, &value)) {
*dest = git_config_maybe_bool(key, value);
if (*dest == -1)
return -1;
return 0;
} else
return 1;
}
int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest)
{
const char *value;
if (!git_configset_get_value(cs, key, &value))
return git_config_pathname(dest, key, value);
else
return 1;
}
/* Functions use to read configuration from a repository */
static void repo_read_config(struct repository *repo)
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
{
struct config_options opts;
opts.respect_includes = 1;
opts.commondir = repo->commondir;
opts.git_dir = repo->gitdir;
if (!repo->config)
repo->config = xcalloc(1, sizeof(struct config_set));
else
git_configset_clear(repo->config);
git_configset_init(repo->config);
if (config_with_options(config_set_callback, repo->config, NULL, &opts) < 0)
/*
* config_with_options() normally returns only
* zero, as most errors are fatal, and
* non-fatal potential errors are guarded by "if"
* statements that are entered only when no error is
* possible.
*
* If we ever encounter a non-fatal error, it means
* something went really wrong and we should stop
* immediately.
*/
die(_("unknown error occurred while reading the configuration files"));
}
static void git_config_check_init(struct repository *repo)
{
if (repo->config && repo->config->hash_initialized)
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
return;
repo_read_config(repo);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
static void repo_config_clear(struct repository *repo)
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
{
if (!repo->config || !repo->config->hash_initialized)
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
return;
git_configset_clear(repo->config);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
void repo_config(struct repository *repo, config_fn_t fn, void *data)
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
{
git_config_check_init(repo);
configset_iter(repo->config, fn, data);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
int repo_config_get_value(struct repository *repo,
const char *key, const char **value)
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
{
git_config_check_init(repo);
return git_configset_get_value(repo->config, key, value);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
const struct string_list *repo_config_get_value_multi(struct repository *repo,
const char *key)
{
git_config_check_init(repo);
return git_configset_get_value_multi(repo->config, key);
}
int repo_config_get_string_const(struct repository *repo,
const char *key, const char **dest)
{
int ret;
git_config_check_init(repo);
ret = git_configset_get_string_const(repo->config, key, dest);
if (ret < 0)
git_die_config(key, NULL);
return ret;
}
int repo_config_get_string(struct repository *repo,
const char *key, char **dest)
{
git_config_check_init(repo);
return repo_config_get_string_const(repo, key, (const char **)dest);
}
int repo_config_get_int(struct repository *repo,
const char *key, int *dest)
{
git_config_check_init(repo);
return git_configset_get_int(repo->config, key, dest);
}
int repo_config_get_ulong(struct repository *repo,
const char *key, unsigned long *dest)
{
git_config_check_init(repo);
return git_configset_get_ulong(repo->config, key, dest);
}
int repo_config_get_bool(struct repository *repo,
const char *key, int *dest)
{
git_config_check_init(repo);
return git_configset_get_bool(repo->config, key, dest);
}
int repo_config_get_bool_or_int(struct repository *repo,
const char *key, int *is_bool, int *dest)
{
git_config_check_init(repo);
return git_configset_get_bool_or_int(repo->config, key, is_bool, dest);
}
int repo_config_get_maybe_bool(struct repository *repo,
const char *key, int *dest)
{
git_config_check_init(repo);
return git_configset_get_maybe_bool(repo->config, key, dest);
}
int repo_config_get_pathname(struct repository *repo,
const char *key, const char **dest)
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
{
int ret;
git_config_check_init(repo);
ret = git_configset_get_pathname(repo->config, key, dest);
if (ret < 0)
git_die_config(key, NULL);
return ret;
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
/* Functions used historically to read configuration from 'the_repository' */
void git_config(config_fn_t fn, void *data)
{
repo_config(the_repository, fn, data);
}
void git_config_clear(void)
{
repo_config_clear(the_repository);
}
int git_config_get_value(const char *key, const char **value)
{
return repo_config_get_value(the_repository, key, value);
}
const struct string_list *git_config_get_value_multi(const char *key)
{
return repo_config_get_value_multi(the_repository, key);
}
int git_config_get_string_const(const char *key, const char **dest)
{
return repo_config_get_string_const(the_repository, key, dest);
}
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
int git_config_get_string(const char *key, char **dest)
{
return repo_config_get_string(the_repository, key, dest);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
int git_config_get_int(const char *key, int *dest)
{
return repo_config_get_int(the_repository, key, dest);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
int git_config_get_ulong(const char *key, unsigned long *dest)
{
return repo_config_get_ulong(the_repository, key, dest);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
int git_config_get_bool(const char *key, int *dest)
{
return repo_config_get_bool(the_repository, key, dest);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest)
{
return repo_config_get_bool_or_int(the_repository, key, is_bool, dest);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
int git_config_get_maybe_bool(const char *key, int *dest)
{
return repo_config_get_maybe_bool(the_repository, key, dest);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
int git_config_get_pathname(const char *key, const char **dest)
{
return repo_config_get_pathname(the_repository, key, dest);
}
int git_config_get_expiry(const char *key, const char **output)
{
int ret = git_config_get_string_const(key, output);
if (ret)
return ret;
if (strcmp(*output, "now")) {
timestamp_t now = approxidate("now");
if (approxidate(*output) >= now)
git_die_config(key, _("Invalid %s: '%s'"), key, *output);
}
return ret;
}
config: add core.untrackedCache When we know that mtime on directory as given by the environment is usable for the purpose of untracked cache, we may want the untracked cache to be always used without any mtime test or kernel name check being performed. Also when we know that mtime is not usable for the purpose of untracked cache, for example because the repo is shared over a network file system, we may want the untracked-cache to be automatically removed from the index. Allow the user to express such preference by setting the 'core.untrackedCache' configuration variable, which can take 'keep', 'false', or 'true' and default to 'keep'. When read_index_from() is called, it now adds or removes the untracked cache in the index to respect the value of this variable. So it does nothing if the value is `keep` or if the variable is unset; it adds the untracked cache if the value is `true`; and it removes the cache if the value is `false`. `git update-index --[no-|force-]untracked-cache` still adds the untracked cache to, or removes it, from the index, but this shows a warning if it goes against the value of core.untrackedCache, because the next time the index is read the untracked cache will be added or removed if the configuration is set to do so. Also `--untracked-cache` used to check that the underlying operating system and file system change `st_mtime` field of a directory if files are added or deleted in that directory. But because those tests take a long time, `--untracked-cache` no longer performs them. Instead, there is now `--test-untracked-cache` to perform the tests. This change makes `--untracked-cache` the same as `--force-untracked-cache`. This last change is backward incompatible and should be mentioned in the release notes. Helped-by: Duy Nguyen <pclouds@gmail.com> Helped-by: Torsten Bögershausen <tboegi@web.de> Helped-by: Stefan Beller <sbeller@google.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> read-cache: Duy'sfixup Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-27 06:58:05 +00:00
int git_config_get_untracked_cache(void)
{
int val = -1;
const char *v;
/* Hack for test programs like test-dump-untracked-cache */
if (ignore_untracked_cache_config)
return -1;
config: add core.untrackedCache When we know that mtime on directory as given by the environment is usable for the purpose of untracked cache, we may want the untracked cache to be always used without any mtime test or kernel name check being performed. Also when we know that mtime is not usable for the purpose of untracked cache, for example because the repo is shared over a network file system, we may want the untracked-cache to be automatically removed from the index. Allow the user to express such preference by setting the 'core.untrackedCache' configuration variable, which can take 'keep', 'false', or 'true' and default to 'keep'. When read_index_from() is called, it now adds or removes the untracked cache in the index to respect the value of this variable. So it does nothing if the value is `keep` or if the variable is unset; it adds the untracked cache if the value is `true`; and it removes the cache if the value is `false`. `git update-index --[no-|force-]untracked-cache` still adds the untracked cache to, or removes it, from the index, but this shows a warning if it goes against the value of core.untrackedCache, because the next time the index is read the untracked cache will be added or removed if the configuration is set to do so. Also `--untracked-cache` used to check that the underlying operating system and file system change `st_mtime` field of a directory if files are added or deleted in that directory. But because those tests take a long time, `--untracked-cache` no longer performs them. Instead, there is now `--test-untracked-cache` to perform the tests. This change makes `--untracked-cache` the same as `--force-untracked-cache`. This last change is backward incompatible and should be mentioned in the release notes. Helped-by: Duy Nguyen <pclouds@gmail.com> Helped-by: Torsten Bögershausen <tboegi@web.de> Helped-by: Stefan Beller <sbeller@google.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> read-cache: Duy'sfixup Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-27 06:58:05 +00:00
if (!git_config_get_maybe_bool("core.untrackedcache", &val))
return val;
if (!git_config_get_value("core.untrackedcache", &v)) {
if (!strcasecmp(v, "keep"))
return -1;
error(_("unknown core.untrackedCache value '%s'; "
"using 'keep' default value"), v);
config: add core.untrackedCache When we know that mtime on directory as given by the environment is usable for the purpose of untracked cache, we may want the untracked cache to be always used without any mtime test or kernel name check being performed. Also when we know that mtime is not usable for the purpose of untracked cache, for example because the repo is shared over a network file system, we may want the untracked-cache to be automatically removed from the index. Allow the user to express such preference by setting the 'core.untrackedCache' configuration variable, which can take 'keep', 'false', or 'true' and default to 'keep'. When read_index_from() is called, it now adds or removes the untracked cache in the index to respect the value of this variable. So it does nothing if the value is `keep` or if the variable is unset; it adds the untracked cache if the value is `true`; and it removes the cache if the value is `false`. `git update-index --[no-|force-]untracked-cache` still adds the untracked cache to, or removes it, from the index, but this shows a warning if it goes against the value of core.untrackedCache, because the next time the index is read the untracked cache will be added or removed if the configuration is set to do so. Also `--untracked-cache` used to check that the underlying operating system and file system change `st_mtime` field of a directory if files are added or deleted in that directory. But because those tests take a long time, `--untracked-cache` no longer performs them. Instead, there is now `--test-untracked-cache` to perform the tests. This change makes `--untracked-cache` the same as `--force-untracked-cache`. This last change is backward incompatible and should be mentioned in the release notes. Helped-by: Duy Nguyen <pclouds@gmail.com> Helped-by: Torsten Bögershausen <tboegi@web.de> Helped-by: Stefan Beller <sbeller@google.com> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> read-cache: Duy'sfixup Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-27 06:58:05 +00:00
return -1;
}
return -1; /* default value */
}
int git_config_get_split_index(void)
{
int val;
if (!git_config_get_maybe_bool("core.splitindex", &val))
return val;
return -1; /* default value */
}
int git_config_get_max_percent_split_change(void)
{
int val = -1;
if (!git_config_get_int("splitindex.maxpercentchange", &val)) {
if (0 <= val && val <= 100)
return val;
return error(_("splitIndex.maxPercentChange value '%d' "
"should be between 0 and 100"), val);
}
return -1; /* default value */
}
NORETURN
void git_die_config_linenr(const char *key, const char *filename, int linenr)
{
if (!filename)
die(_("unable to parse '%s' from command-line config"), key);
else
die(_("bad config variable '%s' in file '%s' at line %d"),
key, filename, linenr);
}
NORETURN __attribute__((format(printf, 2, 3)))
void git_die_config(const char *key, const char *err, ...)
{
const struct string_list *values;
struct key_value_info *kv_info;
if (err) {
va_list params;
va_start(params, err);
vreportf("error: ", err, params);
va_end(params);
}
values = git_config_get_value_multi(key);
kv_info = values->items[values->nr - 1].util;
git_die_config_linenr(key, kv_info->filename, kv_info->linenr);
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
}
/*
* Find all the stuff for git_config_set() below.
*/
static struct {
int baselen;
char *key;
int do_not_match;
regex_t *value_regex;
int multi_replace;
size_t *offset;
unsigned int offset_alloc;
enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state;
int seen;
} store;
static int matches(const char *key, const char *value)
{
if (strcmp(key, store.key))
return 0; /* not ours */
if (!store.value_regex)
return 1; /* always matches */
if (store.value_regex == CONFIG_REGEX_NONE)
return 0; /* never matches */
return store.do_not_match ^
(value && !regexec(store.value_regex, value, 0, NULL, 0));
}
static int store_aux(const char *key, const char *value, void *cb)
{
const char *ep;
size_t section_len;
switch (store.state) {
case KEY_SEEN:
if (matches(key, value)) {
if (store.seen == 1 && store.multi_replace == 0) {
warning(_("%s has multiple values"), key);
}
ALLOC_GROW(store.offset, store.seen + 1,
store.offset_alloc);
store.offset[store.seen] = cf->do_ftell(cf);
store.seen++;
}
break;
case SECTION_SEEN:
/*
* What we are looking for is in store.key (both
* section and var), and its section part is baselen
* long. We found key (again, both section and var).
* We would want to know if this key is in the same
* section as what we are looking for. We already
* know we are in the same section as what should
* hold store.key.
*/
ep = strrchr(key, '.');
section_len = ep - key;
if ((section_len != store.baselen) ||
memcmp(key, store.key, section_len+1)) {
store.state = SECTION_END_SEEN;
break;
}
/*
* Do not increment matches: this is no match, but we
* just made sure we are in the desired section.
*/
ALLOC_GROW(store.offset, store.seen + 1,
store.offset_alloc);
store.offset[store.seen] = cf->do_ftell(cf);
/* fallthru */
case SECTION_END_SEEN:
case START:
if (matches(key, value)) {
ALLOC_GROW(store.offset, store.seen + 1,
store.offset_alloc);
store.offset[store.seen] = cf->do_ftell(cf);
store.state = KEY_SEEN;
store.seen++;
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
} else {
if (strrchr(key, '.') - key == store.baselen &&
!strncmp(key, store.key, store.baselen)) {
store.state = SECTION_SEEN;
ALLOC_GROW(store.offset,
store.seen + 1,
store.offset_alloc);
store.offset[store.seen] = cf->do_ftell(cf);
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
}
}
}
return 0;
}
static int write_error(const char *filename)
{
error("failed to write new configuration file %s", filename);
/* Same error code as "failed to rename". */
return 4;
}
static int store_write_section(int fd, const char *key)
{
const char *dot;
int i, success;
struct strbuf sb = STRBUF_INIT;
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
dot = memchr(key, '.', store.baselen);
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
if (dot) {
strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
for (i = dot - key + 1; i < store.baselen; i++) {
if (key[i] == '"' || key[i] == '\\')
strbuf_addch(&sb, '\\');
strbuf_addch(&sb, key[i]);
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
}
strbuf_addstr(&sb, "\"]\n");
} else {
strbuf_addf(&sb, "[%.*s]\n", store.baselen, key);
git config syntax updates This updates the hierarchical section name syntax to [section<space>+"<randomstring>"] where the only rule for "randomstring" is that it can't contain a newline, and if you really want to insert a double-quote, you do it with \". It turns that into the section name "secion.randomstring". The "section" part is still case insensitive, but the "randomstring" part is case sensitive. So you could use this for things like [email "torvalds@osdl.org"] name = Linus Torvalds if you wanted to do the "email->name" conversion as part of the config file format (I'm not claiming that is sensible, I'm just giving it as an insane example). That would show up as the association email.torvalds@osdl.org.name -> Linus Torvalds which is easy to parse (the "." in the email _looks_ ambiguous, but it isn't: you know that there will always be a single key-name, so you find the key name with "strrchr(name, '.')" and things are entirely unambiguous). Repo-config is updated to be able to parse the new format, and also write things out in the new format. [jc: rolled two patches from Linus and one fix-up from Sean into one, with additional adjustments for t/t1300 test to check the case insensitiveness of section base and variable and case sensitiveness of the extended section part. Then stripped some part off to make the result applicable to the stale 1.3.X series that does not have recent enhancements. ] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-09 19:24:02 +00:00
}
success = write_in_full(fd, sb.buf, sb.len) == sb.len;
strbuf_release(&sb);
return success;
}
static int store_write_pair(int fd, const char *key, const char *value)
{
int i, success;
int length = strlen(key + store.baselen + 1);
const char *quote = "";
struct strbuf sb = STRBUF_INIT;
/*
* Check to see if the value needs to be surrounded with a dq pair.
* Note that problematic characters are always backslash-quoted; this
* check is about not losing leading or trailing SP and strings that
* follow beginning-of-comment characters (i.e. ';' and '#') by the
* configuration parser.
*/
if (value[0] == ' ')
quote = "\"";
for (i = 0; value[i]; i++)
if (value[i] == ';' || value[i] == '#')
quote = "\"";
if (i && value[i - 1] == ' ')
quote = "\"";
strbuf_addf(&sb, "\t%.*s = %s",
length, key + store.baselen + 1, quote);
for (i = 0; value[i]; i++)
switch (value[i]) {
case '\n':
strbuf_addstr(&sb, "\\n");
break;
case '\t':
strbuf_addstr(&sb, "\\t");
break;
case '"':
case '\\':
strbuf_addch(&sb, '\\');
default:
strbuf_addch(&sb, value[i]);
break;
}
strbuf_addf(&sb, "%s\n", quote);
success = write_in_full(fd, sb.buf, sb.len) == sb.len;
strbuf_release(&sb);
return success;
}
static ssize_t find_beginning_of_line(const char *contents, size_t size,
size_t offset_, int *found_bracket)
{
size_t equal_offset = size, bracket_offset = size;
ssize_t offset;
contline:
for (offset = offset_-2; offset > 0
&& contents[offset] != '\n'; offset--)
switch (contents[offset]) {
case '=': equal_offset = offset; break;
case ']': bracket_offset = offset; break;
}
if (offset > 0 && contents[offset-1] == '\\') {
offset_ = offset;
goto contline;
}
if (bracket_offset < equal_offset) {
*found_bracket = 1;
offset = bracket_offset+1;
} else
offset++;
return offset;
}
int git_config_set_in_file_gently(const char *config_filename,
const char *key, const char *value)
{
return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
}
void git_config_set_in_file(const char *config_filename,
const char *key, const char *value)
{
git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
}
int git_config_set_gently(const char *key, const char *value)
{
return git_config_set_multivar_gently(key, value, NULL, 0);
}
void git_config_set(const char *key, const char *value)
{
git_config_set_multivar(key, value, NULL, 0);
}
/*
* If value==NULL, unset in (remove from) config,
* if value_regex!=NULL, disregard key/value pairs where value does not match.
* if value_regex==CONFIG_REGEX_NONE, do not match any existing values
* (only add a new one)
* if multi_replace==0, nothing, or only one matching key/value is replaced,
* else all matching key/values (regardless how many) are removed,
* before the new pair is written.
*
* Returns 0 on success.
*
* This function does this:
*
* - it locks the config file by creating ".git/config.lock"
*
* - it then parses the config using store_aux() as validator to find
* the position on the key/value pair to replace. If it is to be unset,
* it must be found exactly once.
*
* - the config file is mmap()ed and the part before the match (if any) is
* written to the lock file, then the changed part and the rest.
*
* - the config file is removed and the lock file rename()d to it.
*
*/
int git_config_set_multivar_in_file_gently(const char *config_filename,
const char *key, const char *value,
const char *value_regex,
int multi_replace)
{
int fd = -1, in_fd = -1;
int ret;
struct lock_file *lock = NULL;
char *filename_buf = NULL;
char *contents = NULL;
size_t contents_sz;
/* parse-key returns negative; flip the sign to feed exit(3) */
ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
if (ret)
goto out_free;
store.multi_replace = multi_replace;
if (!config_filename)
config_filename = filename_buf = git_pathdup("config");
/*
* The lock serves a purpose in addition to locking: the new
* contents of .git/config will be written into it.
*/
lock = xcalloc(1, sizeof(struct lock_file));
fd = hold_lock_file_for_update(lock, config_filename, 0);
if (fd < 0) {
error_errno("could not lock config file %s", config_filename);
free(store.key);
ret = CONFIG_NO_LOCK;
goto out_free;
}
/*
* If .git/config does not exist yet, write a minimal version.
*/
in_fd = open(config_filename, O_RDONLY);
if ( in_fd < 0 ) {
free(store.key);
if ( ENOENT != errno ) {
error_errno("opening %s", config_filename);
ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */
goto out_free;
}
/* if nothing to unset, error out */
if (value == NULL) {
ret = CONFIG_NOTHING_SET;
goto out_free;
}
store.key = (char *)key;
if (!store_write_section(fd, key) ||
!store_write_pair(fd, key, value))
goto write_err_out;
} else {
struct stat st;
size_t copy_begin, copy_end;
int i, new_line = 0;
if (value_regex == NULL)
store.value_regex = NULL;
else if (value_regex == CONFIG_REGEX_NONE)
store.value_regex = CONFIG_REGEX_NONE;
else {
if (value_regex[0] == '!') {
store.do_not_match = 1;
value_regex++;
} else
store.do_not_match = 0;
store.value_regex = (regex_t*)xmalloc(sizeof(regex_t));
if (regcomp(store.value_regex, value_regex,
REG_EXTENDED)) {
error("invalid pattern: %s", value_regex);
free(store.value_regex);
ret = CONFIG_INVALID_PATTERN;
goto out_free;
}
}
ALLOC_GROW(store.offset, 1, store.offset_alloc);
store.offset[0] = 0;
store.state = START;
store.seen = 0;
/*
* After this, store.offset will contain the *end* offset
* of the last match, or remain at 0 if no match was found.
* As a side effect, we make sure to transform only a valid
* existing config file.
*/
if (git_config_from_file(store_aux, config_filename, NULL)) {
error("invalid config file %s", config_filename);
free(store.key);
if (store.value_regex != NULL &&
store.value_regex != CONFIG_REGEX_NONE) {
regfree(store.value_regex);
free(store.value_regex);
}
ret = CONFIG_INVALID_FILE;
goto out_free;
}
free(store.key);
if (store.value_regex != NULL &&
store.value_regex != CONFIG_REGEX_NONE) {
regfree(store.value_regex);
free(store.value_regex);
}
/* if nothing to unset, or too many matches, error out */
if ((store.seen == 0 && value == NULL) ||
(store.seen > 1 && multi_replace == 0)) {
ret = CONFIG_NOTHING_SET;
goto out_free;
}
if (fstat(in_fd, &st) == -1) {
error_errno(_("fstat on %s failed"), config_filename);
ret = CONFIG_INVALID_FILE;
goto out_free;
}
contents_sz = xsize_t(st.st_size);
contents = xmmap_gently(NULL, contents_sz, PROT_READ,
MAP_PRIVATE, in_fd, 0);
if (contents == MAP_FAILED) {
if (errno == ENODEV && S_ISDIR(st.st_mode))
errno = EISDIR;
error_errno("unable to mmap '%s'", config_filename);
ret = CONFIG_INVALID_FILE;
contents = NULL;
goto out_free;
}
close(in_fd);
in_fd = -1;
if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
error_errno("chmod on %s failed", get_lock_file_path(lock));
ret = CONFIG_NO_WRITE;
goto out_free;
}
if (store.seen == 0)
store.seen = 1;
for (i = 0, copy_begin = 0; i < store.seen; i++) {
if (store.offset[i] == 0) {
store.offset[i] = copy_end = contents_sz;
} else if (store.state != KEY_SEEN) {
copy_end = store.offset[i];
} else
copy_end = find_beginning_of_line(
contents, contents_sz,
store.offset[i]-2, &new_line);
if (copy_end > 0 && contents[copy_end-1] != '\n')
new_line = 1;
/* write the first part of the config */
if (copy_end > copy_begin) {
if (write_in_full(fd, contents + copy_begin,
copy_end - copy_begin) <
copy_end - copy_begin)
goto write_err_out;
if (new_line &&
write_str_in_full(fd, "\n") != 1)
goto write_err_out;
}
copy_begin = store.offset[i];
}
/* write the pair (value == NULL means unset) */
if (value != NULL) {
if (store.state == START) {
if (!store_write_section(fd, key))
goto write_err_out;
}
if (!store_write_pair(fd, key, value))
goto write_err_out;
}
/* write the rest of the config */
if (copy_begin < contents_sz)
if (write_in_full(fd, contents + copy_begin,
contents_sz - copy_begin) <
contents_sz - copy_begin)
goto write_err_out;
munmap(contents, contents_sz);
contents = NULL;
}
if (commit_lock_file(lock) < 0) {
error_errno("could not write config file %s", config_filename);
ret = CONFIG_NO_WRITE;
lock = NULL;
goto out_free;
}
/*
* lock is committed, so don't try to roll it back below.
* NOTE: Since lockfile.c keeps a linked list of all created
* lock_file structures, it isn't safe to free(lock). It's
* better to just leave it hanging around.
*/
lock = NULL;
ret = 0;
add `config_set` API for caching config-like files Currently `git_config()` uses a callback mechanism and file rereads for config values. Due to this approach, it is not uncommon for the config files to be parsed several times during the run of a git program, with different callbacks picking out different variables useful to themselves. Add a `config_set`, that can be used to construct an in-memory cache for config-like files that the caller specifies (i.e., files like `.gitmodules`, `~/.gitconfig` etc.). Add two external functions `git_configset_get_value` and `git_configset_get_value_multi` for querying from the config sets. `git_configset_get_value` follows `last one wins` semantic (i.e. if there are multiple matches for the queried key in the files of the configset the value returned will be the last entry in `value_list`). `git_configset_get_value_multi` returns a list of values sorted in order of increasing priority (i.e. last match will be at the end of the list). Add type specific query functions like `git_configset_get_bool` and similar. Add a default `config_set`, `the_config_set` to cache all key-value pairs read from usual config files (repo specific .git/config, user wide ~/.gitconfig, XDG config and the global /etc/gitconfig). `the_config_set` is populated using `git_config()`. Add two external functions `git_config_get_value` and `git_config_get_value_multi` for querying in a non-callback manner from `the_config_set`. Also, add type specific query functions that are implemented as a thin wrapper around the `config_set` API. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Tanay Abhra <tanayabh@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-28 10:10:38 +00:00
/* Invalidate the config cache */
git_config_clear();
out_free:
if (lock)
rollback_lock_file(lock);
free(filename_buf);
if (contents)
munmap(contents, contents_sz);
if (in_fd >= 0)
close(in_fd);
return ret;
write_err_out:
ret = write_error(get_lock_file_path(lock));
goto out_free;
}
void git_config_set_multivar_in_file(const char *config_filename,
const char *key, const char *value,
const char *value_regex, int multi_replace)
{
if (!git_config_set_multivar_in_file_gently(config_filename, key, value,
value_regex, multi_replace))
return;
if (value)
die(_("could not set '%s' to '%s'"), key, value);
else
die(_("could not unset '%s'"), key);
}
int git_config_set_multivar_gently(const char *key, const char *value,
const char *value_regex, int multi_replace)
{
return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex,
multi_replace);
}
void git_config_set_multivar(const char *key, const char *value,
const char *value_regex, int multi_replace)
{
git_config_set_multivar_in_file(NULL, key, value, value_regex,
multi_replace);
}
static int section_name_match (const char *buf, const char *name)
{
int i = 0, j = 0, dot = 0;
if (buf[i] != '[')
return 0;
for (i = 1; buf[i] && buf[i] != ']'; i++) {
if (!dot && isspace(buf[i])) {
dot = 1;
if (name[j++] != '.')
break;
for (i++; isspace(buf[i]); i++)
; /* do nothing */
if (buf[i] != '"')
break;
continue;
}
if (buf[i] == '\\' && dot)
i++;
else if (buf[i] == '"' && dot) {
for (i++; isspace(buf[i]); i++)
; /* do_nothing */
break;
}
if (buf[i] != name[j++])
break;
}
if (buf[i] == ']' && name[j] == 0) {
/*
* We match, now just find the right length offset by
* gobbling up any whitespace after it, as well
*/
i++;
for (; buf[i] && isspace(buf[i]); i++)
; /* do nothing */
return i;
}
return 0;
}
static int section_name_is_ok(const char *name)
{
/* Empty section names are bogus. */
if (!*name)
return 0;
/*
* Before a dot, we must be alphanumeric or dash. After the first dot,
* anything goes, so we can stop checking.
*/
for (; *name && *name != '.'; name++)
if (*name != '-' && !isalnum(*name))
return 0;
return 1;
}
/* if new_name == NULL, the section is removed instead */
int git_config_rename_section_in_file(const char *config_filename,
const char *old_name, const char *new_name)
{
int ret = 0, remove = 0;
char *filename_buf = NULL;
struct lock_file *lock;
int out_fd;
char buf[1024];
FILE *config_file = NULL;
struct stat st;
if (new_name && !section_name_is_ok(new_name)) {
ret = error("invalid section name: %s", new_name);
goto out_no_rollback;
}
if (!config_filename)
config_filename = filename_buf = git_pathdup("config");
lock = xcalloc(1, sizeof(struct lock_file));
out_fd = hold_lock_file_for_update(lock, config_filename, 0);
if (out_fd < 0) {
ret = error("could not lock config file %s", config_filename);
goto out;
}
if (!(config_file = fopen(config_filename, "rb"))) {
ret = warn_on_fopen_errors(config_filename);
if (ret)
goto out;
/* no config file means nothing to rename, no error */
goto commit_and_out;
}
if (fstat(fileno(config_file), &st) == -1) {
ret = error_errno(_("fstat on %s failed"), config_filename);
goto out;
}
if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
ret = error_errno("chmod on %s failed",
get_lock_file_path(lock));
goto out;
}
while (fgets(buf, sizeof(buf), config_file)) {
int i;
int length;
char *output = buf;
for (i = 0; buf[i] && isspace(buf[i]); i++)
; /* do nothing */
if (buf[i] == '[') {
/* it's a section */
int offset = section_name_match(&buf[i], old_name);
if (offset > 0) {
ret++;
if (new_name == NULL) {
remove = 1;
continue;
}
store.baselen = strlen(new_name);
if (!store_write_section(out_fd, new_name)) {
ret = write_error(get_lock_file_path(lock));
goto out;
}
/*
* We wrote out the new section, with
* a newline, now skip the old
* section's length
*/
output += offset + i;
if (strlen(output) > 0) {
/*
* More content means there's
* a declaration to put on the
* next line; indent with a
* tab
*/
output -= 1;
output[0] = '\t';
}
}
remove = 0;
}
if (remove)
continue;
length = strlen(output);
if (write_in_full(out_fd, output, length) != length) {
ret = write_error(get_lock_file_path(lock));
goto out;
}
}
fclose(config_file);
config_file = NULL;
commit_and_out:
if (commit_lock_file(lock) < 0)
ret = error_errno("could not write config file %s",
config_filename);
out:
if (config_file)
fclose(config_file);
rollback_lock_file(lock);
out_no_rollback:
free(filename_buf);
return ret;
}
int git_config_rename_section(const char *old_name, const char *new_name)
{
return git_config_rename_section_in_file(NULL, old_name, new_name);
}
/*
* Call this to report error for your variable that should not
* get a boolean value (i.e. "[my] var" means "true").
*/
#undef config_error_nonbool
int config_error_nonbool(const char *var)
{
return error("missing value for '%s'", var);
}
int parse_config_key(const char *var,
const char *section,
const char **subsection, int *subsection_len,
const char **key)
{
const char *dot;
/* Does it start with "section." ? */
if (!skip_prefix(var, section, &var) || *var != '.')
return -1;
/*
* Find the key; we don't know yet if we have a subsection, but we must
* parse backwards from the end, since the subsection may have dots in
* it, too.
*/
dot = strrchr(var, '.');
*key = dot + 1;
/* Did we have a subsection at all? */
if (dot == var) {
if (subsection) {
*subsection = NULL;
*subsection_len = 0;
}
}
else {
if (!subsection)
return -1;
*subsection = var + 1;
*subsection_len = dot - *subsection;
}
return 0;
}
const char *current_config_origin_type(void)
{
int type;
if (current_config_kvi)
type = current_config_kvi->origin_type;
else if(cf)
type = cf->origin_type;
else
die("BUG: current_config_origin_type called outside config callback");
switch (type) {
case CONFIG_ORIGIN_BLOB:
return "blob";
case CONFIG_ORIGIN_FILE:
return "file";
case CONFIG_ORIGIN_STDIN:
return "standard input";
case CONFIG_ORIGIN_SUBMODULE_BLOB:
return "submodule-blob";
case CONFIG_ORIGIN_CMDLINE:
return "command line";
default:
die("BUG: unknown config origin type");
}
}
const char *current_config_name(void)
{
const char *name;
if (current_config_kvi)
name = current_config_kvi->filename;
else if (cf)
name = cf->name;
else
die("BUG: current_config_name called outside config callback");
return name ? name : "";
}
enum config_scope current_config_scope(void)
{
if (current_config_kvi)
return current_config_kvi->scope;
else
return current_parsing_scope;
}