Commit graph

386 commits

Author SHA1 Message Date
Jeff King
1c2c9bee1b config: die on error in command-line config
The error handling for git_config is somewhat confusing. We
collect errors from running git_config_from_file on the
various config files and carefully pass them back up. But
the two odd things are:

  1. We actually die on most errors in git_config_from_file.
     In fact, the only error we actually pass back up is if
     fopen() fails on the file.

  2. Most callers of git_config do not check the error
     return at all, but will continue if git_config reports
     an error.

When the code for "git -c core.foo=bar" was added, it
dutifully passed errors up the call stack, only for them to
be eventually ignored. This makes it inconsistent with the
file-parsing code, which will die when it sees malformed
config. And it's somewhat unsafe, because it means an error
in parsing a typo like:

  git -c clean.requireforce=ture clean

will continue the command, ignoring the config the user
tried to give.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-22 11:24:50 -07:00
Jeff King
5bf6529aaa fix "git -c" parsing of values with equals signs
If you do something like:

  git -c core.foo="value with = in it" ...

we would split your option on "=" into three fields and
throw away the third one. With this patch we correctly take
everything after the first "=" as the value (keys cannot
have an equals sign in them, so the parsing is unambiguous).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-06-22 11:24:50 -07:00
Ramsay Jones
924aaf3ef7 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 15:10:59 -07:00
Junio C Hamano
1c6e3514d0 Merge branch 'jk/maint-config-alias-fix' into maint
* jk/maint-config-alias-fix:
  handle_options(): do not miscount how many arguments were used
  config: always parse GIT_CONFIG_PARAMETERS during git_config
  git_config: don't peek at global config_parameters
  config: make environment parsing routines static
2011-06-01 14:05:22 -07:00
Ramsay Jones
766d6268c6 config.c: Remove unused git_config_global() function
Commit 8f323c00 (drop support for GIT_CONFIG_NOGLOBAL, 15-03-2011)
removed the git_config_global() function, among other things, since
it is no longer required. Unfortunately, this function has since
been unintentionally restored by a faulty conflict resolution.

Remove it.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-31 10:51:18 -07:00
Junio C Hamano
1f9a980636 Merge branch 'jk/maint-config-alias-fix'
* jk/maint-config-alias-fix:
  handle_options(): do not miscount how many arguments were used
  config: always parse GIT_CONFIG_PARAMETERS during git_config
  git_config: don't peek at global config_parameters
  config: make environment parsing routines static

Conflicts:
	config.c
2011-05-30 20:19:14 -07:00
Jeff King
06eb708f33 config: always parse GIT_CONFIG_PARAMETERS during git_config
Previously we parsed GIT_CONFIG_PARAMETERS lazily into a
linked list, and then checked that list during future
invocations of git_config. However, that ignores the fact
that the environment variable could change during our run
(e.g., because we parse more "-c" as part of an alias).

Instead, let's just re-parse the environment variable each
time. It's generally not very big, and it's no more work
than parsing the config files, anyway.

As a bonus, we can ditch all of the linked list storage code
entirely, making the code much simpler.

The test unfortunately still does not pass because of an
unrelated bug in handle_options.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-24 16:25:36 -07:00
Jeff King
5a0c9eeb89 git_config: don't peek at global config_parameters
The config_parameters list in config.c is an implementation
detail of git_config_from_parameters; instead, that function
should tell us whether it found anything.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-24 16:20:56 -07:00
Jeff King
3ddf0968c2 config: make environment parsing routines static
Nobody outside of git_config_from_parameters should need
to use the GIT_CONFIG_PARAMETERS parsing functions, so let's
make them private.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-24 16:20:48 -07:00
Michael J Gruber
7a39741999 config: define and document exit codes
The return codes of git_config_set() and friends are magic numbers right
in the source. #define them in cache.h where the functions are declared,
and use the constants in the source.

Also, mention the resulting exit codes of "git config" in its man page
(and complete the list).

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-17 21:01:17 -07:00
Junio C Hamano
ec70f52f6f convert: rename the "eol" global variable to "core_eol"
Yes, it is clear that "eol" wants to mean some sort of end-of-line thing,
but as the name of a global variable, it is way too short to describe what
kind of end-of-line thing it wants to represent. Besides, there are many
codepaths that want to use their own local "char *eol" variable to point
at the end of the current line they are processing.

This global variable holds what we read from core.eol configuration
variable. Name it as such.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-09 14:58:52 -07:00
Junio C Hamano
f28d2e33c6 Merge branch 'jc/pack-objects-bigfile' into maint
* jc/pack-objects-bigfile:
  Teach core.bigfilethreashold to pack-objects
2011-05-04 14:57:38 -07:00
Junio C Hamano
c5a5f12e5a Merge branch 'ef/maint-strbuf-init'
* ef/maint-strbuf-init:
  config: support values longer than 1023 bytes
  strbuf: make sure buffer is zero-terminated
2011-04-27 11:36:43 -07:00
Junio C Hamano
9cedd16c62 Merge branch 'jc/pack-objects-bigfile'
* jc/pack-objects-bigfile:
  Teach core.bigfilethreashold to pack-objects
2011-04-27 11:36:41 -07:00
Erik Faye-Lund
e96c19c50f config: support values longer than 1023 bytes
parse_value in config.c has a static buffer of 1024 bytes that it
parse the value into. This can sometimes be a problem when a
config file contains very long values.

It's particularly amusing that git-config already is able to write
such files, so it should probably be able to read them as well.

Fix this by using a strbuf instead of a fixed-size buffer.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-11 14:10:06 -07:00
Junio C Hamano
15366280c2 Teach core.bigfilethreashold to pack-objects
The pack-objects command should take notice of the object file and
refrain from attempting to delta large ones, to be consistent with
the fast-import command.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-05 20:25:49 -07:00
Junio C Hamano
da2584243e Merge branch 'lt/default-abbrev'
* lt/default-abbrev:
  Rename core.abbrevlength back to core.abbrev
  Make the default abbrev length configurable
2011-03-23 14:55:40 -07:00
Junio C Hamano
50aaeca008 Merge branch 'jn/test-sanitize-git-env'
* jn/test-sanitize-git-env:
  tests: scrub environment of GIT_* variables
  config: drop support for GIT_CONFIG_NOGLOBAL
  gitattributes: drop support for GIT_ATTR_NOGLOBAL
  tests: suppress system gitattributes
  tests: stop worrying about obsolete environment variables
2011-03-22 21:38:12 -07:00
Junio C Hamano
a71f09fe3e Rename core.abbrevlength back to core.abbrev
It corresponds to --abbrev=$n command line option after all.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-20 22:26:24 -07:00
Junio C Hamano
b2f6eab402 Merge branch 'maint'
* maint:
  Prepare draft release notes to 1.7.4.2
  gitweb: highlight: replace tabs with spaces
  make_absolute_path: return the input path if it points to our buffer
  valgrind: ignore SSE-based strlen invalid reads
  diff --submodule: split into bite-sized pieces
  cherry: split off function to print output lines
  branch: split off function that writes tracking info and commit subject
  standardize brace placement in struct definitions
  compat: make gcc bswap an inline function
  enums: omit trailing comma for portability

Conflicts:
	RelNotes
2011-03-16 16:59:30 -07:00
Junio C Hamano
61a6f1faec Merge branch 'jh/push-default-upstream-configname' into maint
* jh/push-default-upstream-configname:
  push.default: Rename 'tracking' to 'upstream'
2011-03-16 16:47:26 -07:00
Jonathan Nieder
9cba13ca5d standardize brace placement in struct definitions
In a struct definitions, unlike functions, the prevailing style is for
the opening brace to go on the same line as the struct name, like so:

 struct foo {
	int bar;
	char *baz;
 };

Indeed, grepping for 'struct [a-z_]* {$' yields about 5 times as many
matches as 'struct [a-z_]*$'.

Linus sayeth:

 Heretic people all over the world have claimed that this inconsistency
 is ...  well ...  inconsistent, but all right-thinking people know that
 (a) K&R are _right_ and (b) K&R are right.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-16 12:49:02 -07:00
Jonathan Nieder
8f323c00dd config: drop support for GIT_CONFIG_NOGLOBAL
Now that test-lib sets $HOME to protect against pollution from user
settings, GIT_CONFIG_NOGLOBAL is not needed for use by the test
suite any more.  And as luck would have it, a quick code search
reveals no other users in the wild.

This patch does not affect GIT_CONFIG_NOSYSTEM, which is still
needed.

Helped-by: Jeff King <peff@peff.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-15 12:23:30 -07:00
Linus Torvalds
dce9648916 Make the default abbrev length configurable
The default of 7 comes from fairly early in git development, when
seven hex digits was a lot (it covers about 250+ million hash
values). Back then I thought that 65k revisions was a lot (it was what
we were about to hit in BK), and each revision tends to be about 5-10
new objects or so, so a million objects was a big number.

These days, the kernel isn't even the largest git project, and even
the kernel has about 220k revisions (_much_ bigger than the BK tree
ever was) and we are approaching two million objects. At that point,
seven hex digits is still unique for a lot of them, but when we're
talking about just two orders of magnitude difference between number
of objects and the hash size, there _will_ be collisions in truncated
hash values. It's no longer even close to unrealistic - it happens all
the time.

We should both increase the default abbrev that was unrealistically
small, _and_ add a way for people to set their own default per-project
in the git config file.

This is the first step to first make it configurable; the default of 7
is not raised yet.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-11 14:42:54 -08:00
Junio C Hamano
adfe4e1ff2 Merge branch 'maint'
* maint:
  Revert "core.abbrevguard: Ensure short object names stay unique a bit longer"
2011-03-10 22:45:49 -08:00
Junio C Hamano
ea2c69ed47 Revert "core.abbrevguard: Ensure short object names stay unique a bit longer"
This reverts commit 72a5b561fc, as adding
fixed number of hexdigits more than necessary to make one object name
locally unique does not help in futureproofing the uniqueness of names
we generate today.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-03-10 22:41:14 -08:00
Junio C Hamano
8978166e53 Merge branch 'jh/push-default-upstream-configname'
* jh/push-default-upstream-configname:
  push.default: Rename 'tracking' to 'upstream'
2011-02-27 21:58:31 -08:00
Libor Pechacek
2169ddc056 Disallow empty section and variable names
It is possible to break your repository config by creating an invalid key.  The
config parser in turn chokes on it:

  $ git init
  Initialized empty Git repository in /tmp/gittest/.git/
  $ git config .foo false
  $ git config core.bare
  fatal: bad config file line 6 in .git/config

This patch makes git-config reject keys which start or end with a dot and adds
tests for these cases.

Signed-off-by: Libor Pechacek <lpechacek@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-22 15:19:46 -08:00
Libor Pechacek
b09c53a3e3 Sanity-check config variable names
Sanity-check config variable names when adding and retrieving them.  As a side
effect code duplication between git_config_set_multivar and get_value (in
builtin/config.c) was removed and the common functionality was placed in
git_config_parse_key.

This breaks a test in t1300 which used invalid section-less keys in the tests
for "git -c". However, allowing such names there was useless, since there was
no way to set them via config file, and no part of git actually tried to use
section-less keys. This patch updates the test to use more realistic examples
as well as adding its own test.

Signed-off-by: Libor Pechacek <lpechacek@suse.cz>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-22 15:19:45 -08:00
Johan Herland
53c403116a push.default: Rename 'tracking' to 'upstream'
Users are sometimes confused with two different types of "tracking" behavior
in Git: "remote-tracking" branches (e.g. refs/remotes/*/*) versus the
merge/rebase relationship between a local branch and its @{upstream}
(controlled by branch.foo.remote and branch.foo.merge config settings).

When the push.default is set to 'tracking', it specifies that a branch should
be pushed to its @{upstream} branch. In other words, setting push.default to
'tracking' applies only to the latter of the above two types of "tracking"
behavior.

In order to make this more understandable to the user, we rename the
push.default == 'tracking' option to push.default == 'upstream'.

push.default == 'tracking' is left as a deprecated synonym for 'upstream'.

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-02-16 10:21:52 -08:00
Junio C Hamano
f3bb8b4b84 Merge branch 'nd/setup'
* nd/setup: (47 commits)
  setup_work_tree: adjust relative $GIT_WORK_TREE after moving cwd
  git.txt: correct where --work-tree path is relative to
  Revert "Documentation: always respect core.worktree if set"
  t0001: test git init when run via an alias
  Remove all logic from get_git_work_tree()
  setup: rework setup_explicit_git_dir()
  setup: clean up setup_discovered_git_dir()
  t1020-subdirectory: test alias expansion in a subdirectory
  setup: clean up setup_bare_git_dir()
  setup: limit get_git_work_tree()'s to explicit setup case only
  Use git_config_early() instead of git_config() during repo setup
  Add git_config_early()
  git-rev-parse.txt: clarify --git-dir
  t1510: setup case #31
  t1510: setup case #30
  t1510: setup case #29
  t1510: setup case #28
  t1510: setup case #27
  t1510: setup case #26
  t1510: setup case #25
  ...
2010-12-28 11:26:55 -08:00
Nguyễn Thái Ngọc Duy
dbdf5854b2 Add git_config_early()
This version of git_config() will be used during repository setup.
As a repository is being set up, $GIT_DIR is not nailed down yet,
git_pathdup() should not be used to get $GIT_DIR/config.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-22 14:34:24 -08:00
Junio C Hamano
f7d07cce82 Merge branch 'jk/maint-decorate-01-bool'
* jk/maint-decorate-01-bool:
  handle arbitrary ints in git_config_maybe_bool
2010-12-21 14:30:43 -08:00
Jeff King
db6195efab handle arbitrary ints in git_config_maybe_bool
This function recently gained the ability to recognize the documented "0"
and "1" values as false/true. However, unlike regular git_config_bool, it
did not treat arbitrary non-zero numbers as true.

While this is undocumented and probably ridiculous for somebody to rely
on, it is safer to behave exactly as git_config_bool would. Because
git_config_maybe_bool can be used to retrofit new non-bool values onto
existing bool options, not behaving in exactly the same way is technically
a regression.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-19 10:46:08 -08:00
Junio C Hamano
5e826019ef Merge branch 'jk/maint-decorate-01-bool'
* jk/maint-decorate-01-bool:
  log.decorate: accept 0/1 bool values
2010-12-08 11:24:14 -08:00
Junio C Hamano
63ae595c6d Merge branch 'jc/abbrev-guard'
* jc/abbrev-guard:
  core.abbrevguard: Ensure short object names stay unique a bit longer
2010-12-03 16:10:35 -08:00
Jeff King
b2be2f6aea log.decorate: accept 0/1 bool values
We explicitly document "0" and "1" as synonyms for "false"
and "true" in boolean config options. However, we don't
actually handle those values in git_config_maybe_bool.

In most cases this works fine, as we call git_config_bool,
which in turn calls git_config_bool_or_int, which in turn
calls git_config_maybe_bool. Values of 0/1 are considered
"not bool", but their integer values end up being converted
to the corresponding boolean values.

However, the log.decorate code looks for maybe_bool
explicitly, so that it can fall back to the "short" and
"full" strings. It does not handle 0/1 at all, and considers
them invalid values.

We cannot simply add 0/1 support to git_config_maybe_bool.
That would confuse git_config_bool_or_int, which may want to
distinguish the integer values "0" and "1" from bools.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-17 10:59:23 -08:00
Junio C Hamano
72a5b561fc core.abbrevguard: Ensure short object names stay unique a bit longer
Even though git makes sure that it uses enough hexdigits to show an
abbreviated object name unambiguously, as more objects are added to the
repository over time, a short name that used to be unique will stop being
unique.  Git uses this many extra hexdigits that are more than necessary
to make the object name currently unique, in the hope that its output will
stay unique a bit longer.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-28 17:37:35 -07:00
Jeff King
1f2baa78c6 config: treat non-existent config files as empty
The git_config() function signals error by returning -1 in
two instances:

  1. An actual error occurs in opening a config file (parse
     errors cause an immediate die).

  2. Of the three possible config files, none was found.

However, this second case is often not an error at all; it
simply means that the user has no configuration (they are
outside a repo, and they have no ~/.gitconfig file). This
can lead to confusing errors, such as when the bash
completion calls "git config --list" outside of a repo. If
the user has a ~/.gitconfig, the command completes
succesfully; if they do not, it complains to stderr.

This patch allows callers of git_config to distinguish
between the two cases. Error is signaled by -1, and
otherwise the return value is the number of files parsed.
This means that the traditional "git_config(...) < 0" check
for error should work, but callers who want to know whether
we parsed any files or not can still do so.

[jc: with tests from Jonathan]

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-21 15:43:24 -07:00
Junio C Hamano
b815a726e9 Merge branch 'kf/askpass-config'
* kf/askpass-config:
  Extend documentation of core.askpass and GIT_ASKPASS.
  Allow core.askpass to override SSH_ASKPASS.
  Add a new option 'core.askpass'.
2010-09-08 09:17:01 -07:00
Anselm Kruis
d3e7da8979 Add a new option 'core.askpass'.
Setting this option has the same effect as setting the environment variable
'GIT_ASKPASS'.

Signed-off-by: Knut Franke <k.franke@science-computing.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-31 10:49:02 -07:00
Jeff King
2b64fc894d pass "git -c foo=bar" params through environment
Git uses the "-c foo=bar" parameters to set a config
variable for a single git invocation. We currently do this
by making a list in the current process and consulting that
list in git_config.

This works fine for built-ins, but the config changes are
silently ignored by subprocesses, including dashed externals
and invocations to "git config" from shell scripts.

This patch instead puts them in an environment variable
which we consult when looking at config (both internally and
via calls "git config").

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-24 09:53:46 -07:00
Junio C Hamano
d5cff17eda Merge branch 'eb/core-eol'
* eb/core-eol:
  Add "core.eol" config variable
  Rename the "crlf" attribute "text"
  Add per-repository eol normalization
  Add tests for per-repository eol normalization

Conflicts:
	Documentation/config.txt
	Makefile
2010-06-21 06:02:49 -07:00
Eyvind Bernhardsen
942e774767 Add "core.eol" config variable
Introduce a new configuration variable, "core.eol", that allows the user
to set which line endings to use for end-of-line-normalized files in the
working directory.  It defaults to "native", which means CRLF on Windows
and LF everywhere else.

Note that "core.autocrlf" overrides core.eol.  This means that

[core]
	autocrlf = true

puts CRLFs in the working directory even if core.eol is set to "lf".

Signed-off-by: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-06 21:20:04 -07:00
Junio C Hamano
78f17935a3 Merge branch 'ld/discovery-limit-to-fs' (early part)
* 'ld/discovery-limit-to-fs' (early part):
  Rename ONE_FILESYSTEM to DISCOVERY_ACROSS_FILESYSTEM
  GIT_ONE_FILESYSTEM: flip the default to stop at filesystem boundaries
  Add support for GIT_ONE_FILESYSTEM
  truncate cwd string before printing error message
  config.c: remove static keyword from git_env_bool()
2010-05-21 04:02:15 -07:00
Junio C Hamano
7f3ed824a4 Merge branch 'ar/config-from-command-line'
* ar/config-from-command-line:
  Complete prototype of git_config_from_parameters()
  Use strbufs instead of open-coded string manipulation
  Allow passing of configuration parameters in the command line
2010-05-21 04:02:14 -07:00
Eyvind Bernhardsen
fd6cce9e89 Add per-repository eol normalization
Change the semantics of the "crlf" attribute so that it enables
end-of-line normalization when it is set, regardless of "core.autocrlf".

Add a new setting for "crlf": "auto", which enables end-of-line
conversion but does not override the automatic text file detection.

Add a new attribute "eol" with possible values "crlf" and "lf".  When
set, this attribute enables normalization and forces git to use CRLF or
LF line endings in the working directory, respectively.

The line ending style to be used for normalized text files in the
working directory is set using "core.autocrlf".  When it is set to
"true", CRLFs are used in the working directory; when set to "input" or
"false", LFs are used.

Signed-off-by: Eyvind Bernhardsen <eyvind.bernhardsen@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-05-19 20:36:15 -07:00
Alex Riesen
572e4f6a0c Use strbufs instead of open-coded string manipulation
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28 09:50:02 -07:00
Alex Riesen
8b1fa77867 Allow passing of configuration parameters in the command line
The values passed this way will override whatever is defined
in the config files.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28 09:48:25 -07:00
Lars R. Damerow
0ef37164c2 config.c: remove static keyword from git_env_bool()
Since this function is the preferred way to handle boolean environment
variables it's useful to have it available to other files.

Signed-off-by: Lars R. Damerow <lars@pixar.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28 09:19:05 -07:00
Junio C Hamano
8420ccd8b8 git_config_maybe_bool()
Some configuration variables can take boolean values in addition to
enumeration specific to them.  Introduce git_config_maybe_bool() that
returns 0 or 1 if the given value is boolean, or -1 if not, so that
a parser for such a variable can check for boolean first and then
parse other kinds of values as a fallback.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-17 09:39:03 -08:00
Junio C Hamano
15a873d6e8 Merge branch 'jc/ident'
* jc/ident:
  ident.c: replace fprintf with fputs to suppress compiler warning
  user_ident_sufficiently_given(): refactor the logic to be usable from elsewhere
  ident.c: treat $EMAIL as giving user.email identity explicitly
  ident.c: check explicit identity for name and email separately
  ident.c: remove unused variables
2010-01-20 14:39:52 -08:00
Junio C Hamano
73d66323ac Merge branch 'nd/sparse'
* nd/sparse: (25 commits)
  t7002: test for not using external grep on skip-worktree paths
  t7002: set test prerequisite "external-grep" if supported
  grep: do not do external grep on skip-worktree entries
  commit: correctly respect skip-worktree bit
  ie_match_stat(): do not ignore skip-worktree bit with CE_MATCH_IGNORE_VALID
  tests: rename duplicate t1009
  sparse checkout: inhibit empty worktree
  Add tests for sparse checkout
  read-tree: add --no-sparse-checkout to disable sparse checkout support
  unpack-trees(): ignore worktree check outside checkout area
  unpack_trees(): apply $GIT_DIR/info/sparse-checkout to the final index
  unpack-trees(): "enable" sparse checkout and load $GIT_DIR/info/sparse-checkout
  unpack-trees.c: generalize verify_* functions
  unpack-trees(): add CE_WT_REMOVE to remove on worktree alone
  Introduce "sparse checkout"
  dir.c: export excluded_1() and add_excludes_from_file_1()
  excluded_1(): support exclude files in index
  unpack-trees(): carry skip-worktree bit over in merged_entry()
  Read .gitignore from index if it is skip-worktree
  Avoid writing to buffer in add_excludes_from_file_1()
  ...

Conflicts:
	.gitignore
	Documentation/config.txt
	Documentation/git-update-index.txt
	Makefile
	entry.c
	t/t7002-grep.sh
2010-01-13 11:58:34 -08:00
Junio C Hamano
91c38a2108 ident.c: check explicit identity for name and email separately
bb1ae3f (commit: Show committer if automatic, 2008-05-04) added a logic to
check both name and email were given explicitly by the end user, but it
assumed that fmt_ident() is never called before git_default_user_config()
is called, which was fragile.  The former calls setup_ident() and fills
the "default" name and email, so the check in the config parser would have
mistakenly said both are given even if only user.name was provided.

Make the logic more robust by keeping track of name and email separately.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Santi Béjar <santi@agolina.net>
2010-01-10 09:42:54 -08:00
Junio C Hamano
eb2fc8f899 Merge branch 'mm/config-pathname-tilde-expand'
* mm/config-pathname-tilde-expand:
  Documentation: avoid xmlto input error
  expand_user_path: expand ~ to $HOME, not to the actual homedir.
  Expand ~ and ~user in core.excludesfile, commit.template
2009-11-22 16:28:38 -08:00
Matthieu Moy
395de250d9 Expand ~ and ~user in core.excludesfile, commit.template
These config variables are parsed to substitute ~ and ~user with getpw
entries.

user_path() refactored into new function expand_user_path(), to allow
dynamically allocating the return buffer.

Original patch by Karl Chen, modified by Matthieu Moy, and further
amended by Junio C Hamano.

Signed-off-by: Karl Chen <quarl@quarl.org>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-17 21:53:11 -08:00
Johannes Schindelin
a97a74686d Introduce commit notes
Commit notes are blobs which are shown together with the commit
message.  These blobs are taken from the notes ref, which you can
configure by the config variable core.notesRef, which in turn can
be overridden by the environment variable GIT_NOTES_REF.

The notes ref is a branch which contains "files" whose names are
the names of the corresponding commits (i.e. the SHA-1).

The rationale for putting this information into a ref is this: we
want to be able to fetch and possibly union-merge the notes,
maybe even look at the date when a note was introduced, and we
want to store them efficiently together with the other objects.

This patch has been improved by the following contributions:
- Thomas Rast: fix core.notesRef documentation
- Tor Arne Vestbø: fix printing of multi-line notes
- Alex Riesen: Using char array instead of char pointer costs less BSS
- Johan Herland: Plug leak when msg is good, but msglen or type causes return

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Tor Arne Vestbø <tavestbo@trolltech.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

get_commit_notes(): Plug memory leak when 'if' triggers, but not because of read_sha1_file() failure
2009-10-19 18:59:42 -07:00
Junio C Hamano
dc1b0c06ee Merge branch 'jk/unwanted-advices'
* jk/unwanted-advices:
  status: make "how to stage" messages optional
  push: make non-fast-forward help message configurable
2009-09-13 01:33:18 -07:00
Jim Meyering
2b7ca830c6 use write_str_in_full helper to avoid literal string lengths
In 2d14d65 (Use a clearer style to issue commands to remote helpers,
2009-09-03) I happened to notice two changes like this:

-	write_in_full(helper->in, "list\n", 5);
+
+	strbuf_addstr(&buf, "list\n");
+	write_in_full(helper->in, buf.buf, buf.len);
+	strbuf_reset(&buf);

IMHO, it would be better to define a new function,

    static inline ssize_t write_str_in_full(int fd, const char *str)
    {
           return write_in_full(fd, str, strlen(str));
    }

and then use it like this:

-       strbuf_addstr(&buf, "list\n");
-       write_in_full(helper->in, buf.buf, buf.len);
-       strbuf_reset(&buf);
+       write_str_in_full(helper->in, "list\n");

Thus not requiring the added allocation, and still avoiding
the maintenance risk of literal string lengths.
These days, compilers are good enough that strlen("literal")
imposes no run-time cost.

Transformed via this:

    perl -pi -e \
        's/write_in_full\((.*?), (".*?"), \d+\)/write_str_in_full($1, $2)/'\
      $(git grep -l 'write_in_full.*"')

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-13 01:31:10 -07:00
Jeff King
75194438f4 push: make non-fast-forward help message configurable
This message is designed to help new users understand what
has happened when refs fail to push. However, it does not
help experienced users at all, and significantly clutters
the output, frequently dwarfing the regular status table and
making it harder to see.

This patch introduces a general configuration mechanism for
optional messages, with this push message as the first
example.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-09-11 21:33:20 -07:00
Nguyễn Thái Ngọc Duy
08aefc9e47 unpack-trees(): "enable" sparse checkout and load $GIT_DIR/info/sparse-checkout
This patch introduces core.sparseCheckout, which will control whether
sparse checkout support is enabled in unpack_trees()

It also loads sparse-checkout file that will be used in the next patch.
I split it out so the next patch will be shorter, easier to read.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-23 17:14:41 -07:00
Junio C Hamano
f0df1293ac Merge branch 'maint-1.6.3' into maint
* maint-1.6.3:
  Better usage string for reflog.
  hg-to-git: don't import the unused popen2 module
  send-email: remove debug trace
  config: Keep inner whitespace verbatim
2009-08-05 12:37:24 -07:00
Björn Steinbrink
ebdaae372b config: Keep inner whitespace verbatim
Configuration values are expected to be quoted when they have leading or
trailing whitespace, but inner whitespace should be kept verbatim even if
the value is not quoted. This is already documented in git-config(1), but
the code caused inner whitespace to be collapsed to a single space,
breaking, for example, clones from a path that has two consecutive spaces
in it, as future fetches would only see a single space.

Reported-by: John te Bokkel <tanj.tanj@gmail.com>
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-31 08:38:30 -07:00
Alex Vandiver
9a5abfc737 After renaming a section, print any trailing variable definitions
Signed-off-by: Alex Vandiver <alex@chmrr.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 23:42:44 -07:00
Alex Vandiver
a4c0d463c0 Make section_name_match start on '[', and return the length on success
Signed-off-by: Alex Vandiver <alex@chmrr.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-24 23:42:34 -07:00
Felipe Contreras
4b25d091ba Fix a bunch of pointer declarations (codestyle)
Essentially; s/type* /type */ as per the coding guidelines.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-01 15:17:31 -07:00
Alex Riesen
6ffd567bec improve error message in config.c
Show errno if opening a lockfile fails.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-29 18:37:58 -07:00
Johannes Schindelin
348df16679 Rename core.unreliableHardlinks to core.createObject
"Unreliable hardlinks" is a misleading description for what is happening.
So rename it to something less misleading.

Suggested by Linus Torvalds.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-29 16:50:07 -07:00
Johannes Schindelin
be66a6c43d Add an option not to use link(src, dest) && unlink(src) when that is unreliable
It seems that accessing NTFS partitions with ufsd (at least on my EeePC)
has an unnerving bug: if you link() a file and unlink() it right away,
the target of the link() will have the correct size, but consist of NULs.

It seems as if the calls are simply not serialized correctly, as single-stepping
through the function move_temp_to_file() works flawlessly.

As ufsd is "Commertial software" (sic!), I cannot fix it, and have to work
around it in Git.

At the same time, it seems that this fixes msysGit issues 222 and 229 to
assume that Windows cannot handle link() && unlink().

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-25 09:49:21 -07:00
Junio C Hamano
4f760b74cf Merge branch 'lt/bool-on-off'
* lt/bool-on-off:
  Documentation: boolean value may be given by on/off
  Allow users to un-configure rename detection
2009-04-18 14:46:22 -07:00
Junio C Hamano
2d430c7133 Merge branch 'maint'
* maint:
  doc/gitattributes: clarify location of config text
  Fix buffer overflow in config parser
  git-apply: fix option description
2009-04-17 21:29:15 -07:00
Junio C Hamano
f7446fc6bb Merge branch 'maint-1.6.1' into maint
* maint-1.6.1:
  Fix buffer overflow in config parser
2009-04-17 21:20:58 -07:00
Junio C Hamano
0fa0514b91 Merge branch 'maint-1.6.0' into maint-1.6.1
* maint-1.6.0:
  Fix buffer overflow in config parser
2009-04-17 21:06:11 -07:00
Thomas Jarosch
e0b3cc0dff Fix buffer overflow in config parser
When interpreting a config value, the config parser reads in 1+ space
character(s) and puts -one- space character in the buffer as soon as
the first non-space character is encountered (if not inside quotes).

Unfortunately the buffer size check lacks the extra space character
which gets inserted at the next non-space character, resulting in
a crash with a specially crafted config entry.

The unit test now uses Java to compile a platform independent
.NET framework to output the test string in C# :o)

    Read: Thanks to Johannes Sixt for the correct printf call
    which replaces the perl invocation.

Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-17 20:59:01 -07:00
Linus Torvalds
8f8c6fafd9 Allow users to un-configure rename detection
On Thu, 9 Apr 2009, Linus Torvalds wrote:
>
> 	[diff]
> 		renames = no

Btw, while doing this, I also though that "renames = on/off" made more
sense, but while we allow yes/no and true/false for booleans, we don't
allow on/off.

Should we? Maybe. Here's a stupid patch.

		Linus

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-11 11:00:45 -07:00
Junio C Hamano
2545c089e3 Merge branch 'fg/push-default'
* fg/push-default:
  builtin-push.c: Fix typo: "anythig" -> "anything"
  Display warning for default git push with no push.default config
  New config push.default to decide default behavior for push

Conflicts:
	Documentation/config.txt
2009-03-26 00:26:25 -07:00
Junio C Hamano
17e46ea6fe Merge branch 'fc/parseopt-config'
* fc/parseopt-config:
  config: test for --replace-all with one argument and fix documentation.
  config: set help text for --bool-or-int
  git config: don't allow --get-color* and variable type
  git config: don't allow extra arguments for -e or -l.
  git config: don't allow multiple variable types
  git config: don't allow multiple config file locations
  git config: reorganize to use parseopt
  git config: reorganize get_color*
  git config: trivial rename in preparation for parseopt
  git_config(): not having a per-repo config file is not an error
2009-03-20 14:29:03 -07:00
Finn Arne Gangstad
521537476f New config push.default to decide default behavior for push
When "git push" is not told what refspecs to push, it pushes all matching
branches to the current remote.  For some workflows this default is not
useful, and surprises new users.  Some have even found that this default
behaviour is too easy to trigger by accident with unwanted consequences.

Introduce a new configuration variable "push.default" that decides what
action git push should take if no refspecs are given or implied by the
command line arguments or the current remote configuration.

Possible values are:

  'nothing'  : Push nothing;
  'matching' : Current default behaviour, push all branches that already
               exist in the current remote;
  'tracking' : Push the current branch to whatever it is tracking;
  'current'  : Push the current branch to a branch of the same name,
               i.e. HEAD.

Signed-off-by: Finn Arne Gangstad <finnag@pvv.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-17 14:50:21 -07:00
Felipe Contreras
aa38740791 git_config(): not having a per-repo config file is not an error
Currently git_config() returns an error if there is no repo config file
available (cwd is not a git repo); it will correctly parse the system
and global config files, but still return an error.

It doesn't affect anything else since almost nobody is checking for the
return code (with the exception of 'git remote update').

A reorganization in 'git config' would benefit from being able to
properly detect errors in git_config() without the noise generated when
cwd is not a git repo.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-21 20:35:50 -08:00
Marius Storm-Olsen
d551a48816 Add mailmap.file as configurational option for mailmap location
This allows us to augment the repo mailmap file, and to use
mailmap files elsewhere than the repository root. Meaning
that the entries in mailmap.file will override the entries
in "./.mailmap", should they match.

Signed-off-by: Marius Storm-Olsen <marius@trolltech.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-08 12:36:26 -08:00
Johannes Schindelin
879ef2485d Introduce commit notes
Commit notes are blobs which are shown together with the commit
message.  These blobs are taken from the notes ref, which you can
configure by the config variable core.notesRef, which in turn can
be overridden by the environment variable GIT_NOTES_REF.

The notes ref is a branch which contains "files" whose names are
the names of the corresponding commits (i.e. the SHA-1).

The rationale for putting this information into a ref is this: we
want to be able to fetch and possibly union-merge the notes,
maybe even look at the date when a note was introduced, and we
want to store them efficiently together with the other objects.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-21 02:47:21 -08:00
Johannes Schindelin
8befc50c49 Get rid of the last remnants of GIT_CONFIG_LOCAL
In dc871831(Only use GIT_CONFIG in "git config", not other programs),
GIT_CONFIG_LOCAL was rested in peace, in favor of not reading
/etc/gitconfig and $HOME/.gitconfig at all when GIT_CONFIG is set.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-14 16:43:39 -08:00
Linus Torvalds
671c9b7e31 Add cache preload facility
This can do the lstat() storm in parallel, giving potentially much
improved performance for cold-cache cases or things like NFS that have
weak metadata caching.

Just use "read_cache_preload()" instead of "read_cache()" to force an
optimistic preload of the index stat data.  The function takes a
pathspec as its argument, allowing us to preload only the relevant
portion of the index.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-14 19:11:49 -08:00
Junio C Hamano
98b35e2c74 Merge branch 'ar/maint-mksnpath' into ar/mksnpath
* ar/maint-mksnpath:
  Use git_pathdup instead of xstrdup(git_path(...))
  git_pathdup: returns xstrdup-ed copy of the formatted path
  Fix potentially dangerous use of git_path in ref.c
  Add git_snpath: a .git path formatting routine with output buffer

Conflicts:
	builtin-revert.c
	refs.c
	rerere.c
2008-10-30 18:08:58 -07:00
Alex Riesen
a4f34cbb4c Use git_pathdup instead of xstrdup(git_path(...))
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-30 17:52:24 -07:00
Brandon Casey
f285a2d7ed Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializer
Many call sites use strbuf_init(&foo, 0) to initialize local
strbuf variable "foo" which has not been accessed since its
declaration. These can be replaced with a static initialization
using the STRBUF_INIT macro which is just as readable, saves a
function call, and takes up fewer lines.

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-12 12:36:19 -07:00
Nanako Shiraishi
0433bcd9f0 config.c: make git_parse_long() static
This function is not used in any other file.

Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-02 18:03:35 -07:00
Petr Baudis
de056402fd config.c: Tolerate UTF8 BOM at the beginning of config file
Unfortunately, the abomination of Windows Notepad likes to scatted
non-sensical UTF8 BOM marks across text files it edits. This is
especially troublesome when editing the Git configuration file,
and it does not appear to be particularly harmful to teach Git
to deal with this poo in the configfile.

Signed-off-by: Petr Baudis <petr.baudis@novartis.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-02 17:19:03 -07:00
Alex Riesen
1ce4790bf5 Make use of stat.ctime configurable
A new configuration variable 'core.trustctime' is introduced to
allow ignoring st_ctime information when checking if paths
in the working tree has changed, because there are situations where
it produces too much false positives.  Like when file system crawlers
keep changing it when scanning and using the ctime for marking scanned
files.

The default is to notice ctime changes.

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-28 23:26:25 -07:00
Steffen Prohaska
2de9de5e4a Move code interpreting path relative to exec-dir to new function system_path()
Expanding system paths relative to git_exec_path can be used for
creating an installation that can be moved to a different directory
without re-compiling.  We use this approach for template_dir and the
system wide gitconfig.  The Windows installer (msysgit) is an example
for such a setup.

This commit moves common code to a new function system_path().  System
paths that are to be interpreted relative to git_exec_path are passed to
system_path() and the return value is used instead of the original path.
system_path() prefixes a relative path with git_exec_path and leaves
absolute paths unmodified.  For example, we now write

    template_dir = system_path(DEFAULT_GIT_TEMPLATE_DIR);

[j6t: moved from path.c to exec_cmd.c]

Signed-off-by: Steffen Prohaska <prohaska@zib.de>
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-13 14:41:28 -07:00
Daniel Barkalow
dc87183189 Only use GIT_CONFIG in "git config", not other programs
For everything other than using "git config" to read or write a
git-style config file that isn't the current repo's config file,
GIT_CONFIG was actively detrimental. Rather than argue over which
programs are important enough to have work anyway, just fix all of
them at the root.

Also removes GIT_LOCAL_CONFIG, which would only be useful for programs
that do want to use global git-specific config, but not the repo's own
git-specific config, and want to use some other, presumably
git-specific config. Despite being documented, I can't find any sign that
it was ever used.

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-01 02:35:49 -07:00
Junio C Hamano
abf7e0df17 Merge branch 'lt/config-fsync'
* lt/config-fsync:
  Add config option to enable 'fsync()' of object files
  Split up default "i18n" and "branch" config parsing into helper routines
  Split up default "user" config parsing into helper routine
  Split up default "core" config parsing into helper routine
2008-06-25 13:19:49 -07:00
しらいしななこ
e4bffb5a1d config.c: make git_env_bool() static
This function is not used by any other file.

Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-19 17:07:41 -07:00
Linus Torvalds
aafe9fbaf4 Add config option to enable 'fsync()' of object files
As explained in the documentation[*] this is totally useless on
filesystems that do ordered/journalled data writes, but it can be a
useful safety feature on filesystems like HFS+ that only journal the
metadata, not the actual file contents.

It defaults to off, although we could presumably in theory some day
auto-enable it on a per-filesystem basis.

[*] Yes, I updated the docs for the thing.  Hell really _has_ frozen
    over, and the four horsemen are probably just beyond the horizon.
    EVERYBODY PANIC!

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-18 16:50:35 -07:00
Linus Torvalds
1141f4925c Split up default "i18n" and "branch" config parsing into helper routines
.. just to finish it off.  We'll leave the pager color config alone,
since it is such an odd-ball special case anyway.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-18 16:50:32 -07:00
Linus Torvalds
d1364529d0 Split up default "user" config parsing into helper routine
This follows the example of the "core" config, and splits out the
default "user" config option parsing into a helper routine.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-18 16:50:23 -07:00
Linus Torvalds
806e2ad7fe Split up default "core" config parsing into helper routine
It makes the code a bit easier to read, and in theory a bit faster too
(no need to compare all the different "core.*" strings against non-core
config options).

The config system really should get something of a complete overhaul,
but in the absense of that, this at least improves on it a tiny bit.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-18 16:50:22 -07:00
Junio C Hamano
9bd81e4249 Merge branch 'js/config-cb'
* js/config-cb:
  Provide git_config with a callback-data parameter

Conflicts:

	builtin-add.c
	builtin-cat-file.c
2008-05-25 14:25:02 -07:00
Junio C Hamano
b66ae7955c Merge branch 'sb/committer'
* sb/committer:
  commit: Show committer if automatic
  commit: Show author if different from committer
  Preparation to call determine_author_info from prepare_to_commit
2008-05-14 13:45:20 -07:00
Junio C Hamano
761adeb4db Merge branch 'bd/tests'
* bd/tests:
  Rename the test trash directory to contain spaces.
  Fix tests breaking when checkout path contains shell metacharacters
  Don't use the 'export NAME=value' in the test scripts.
  lib-git-svn.sh: Fix quoting issues with paths containing shell metacharacters
  test-lib.sh: Fix some missing path quoting
  Use test_set_editor in t9001-send-email.sh
  test-lib.sh: Add a test_set_editor function to safely set $VISUAL
  git-send-email.perl: Handle shell metacharacters in $EDITOR properly
  config.c: Escape backslashes in section names properly
  git-rebase.sh: Fix --merge --abort failures when path contains whitespace

Conflicts:

	t/t9115-git-svn-dcommit-funky-renames.sh
2008-05-14 13:45:16 -07:00
Johannes Schindelin
ef90d6d420 Provide git_config with a callback-data parameter
git_config() only had a function parameter, but no callback data
parameter.  This assumes that all callback functions only modify
global variables.

With this patch, every callback gets a void * parameter, and it is hoped
that this will help the libification effort.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-14 12:34:44 -07:00
Alex Riesen
64c0d71ce9 Improve reporting of errors in config file routines
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-12 20:40:00 -07:00
Junio C Hamano
dccb3a6acb Merge branch 'lt/core-optim'
* lt/core-optim:
  Optimize symlink/directory detection
  Avoid some unnecessary lstat() calls
  is_racy_timestamp(): do not check timestamp for gitlinks
  diff-lib.c: rename check_work_tree_entity()
  diff: a submodule not checked out is not modified
  Add t7506 to test submodule related functions for git-status
  t4027: test diff for submodule with empty directory
  Make git-add behave more sensibly in a case-insensitive environment
  When adding files to the index, add support for case-independent matches
  Make unpack-tree update removed files before any updated files
  Make branch merging aware of underlying case-insensitive filsystems
  Add 'core.ignorecase' option
  Make hash_name_lookup able to do case-independent lookups
  Make "index_name_exists()" return the cache_entry it found
  Move name hashing functions into a file of its own
  Make unpack_trees_options bit flags actual bitfields
2008-05-11 12:08:20 -07:00
Dustin Sallings
c998ae9baa Allow tracking branches to set up rebase by default.
Change cd67e4d4 introduced a new configuration parameter that told
pull to automatically perform a rebase instead of a merge.  This
change provides a configuration option to enable this feature
automatically when creating a new branch.

If the variable branch.autosetuprebase applies for a branch that's
being created, that branch will have branch.<name>.rebase set to true.

Signed-off-by: Dustin Sallings <dustin@spy.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-11 09:28:52 -07:00
Junio C Hamano
380a742679 Merge branch 'lt/case-insensitive'
* lt/case-insensitive:
  Make git-add behave more sensibly in a case-insensitive environment
  When adding files to the index, add support for case-independent matches
  Make unpack-tree update removed files before any updated files
  Make branch merging aware of underlying case-insensitive filsystems
  Add 'core.ignorecase' option
  Make hash_name_lookup able to do case-independent lookups
  Make "index_name_exists()" return the cache_entry it found
  Move name hashing functions into a file of its own
  Make unpack_trees_options bit flags actual bitfields
2008-05-10 18:14:28 -07:00
Santi Béjar
bb1ae3f6ff commit: Show committer if automatic
To warn the user in case he/she might be using an unintended
committer identity.

Signed-off-by: Santi Béjar <sbejar@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-06 16:50:17 -07:00
Bryan Donlan
e5c349ba11 config.c: Escape backslashes in section names properly
If an element of the configuration key name other than the first or last
contains a backslash, it is not escaped on output, but is treated as an
escape sequence on input. Thus, the backslash is lost when re-loading
the configuration.

This patch corrects this by having backslashes escaped properly, and
introduces a new test for this bug.

Signed-off-by: Bryan Donlan <bdonlan@fushizen.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-05 14:17:00 -07:00
Junio C Hamano
c35b0b5884 Fix git_config_bool_or_int
The earlier one botched the return value logic between config_bool and
config_bool_and_int.  The former should normalize between 0 and 1 while
the latter should give back full range of integer values.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-13 12:11:11 -07:00
Junio C Hamano
a53f2ec617 git_config_bool_or_int()
This new function can be used by config parsers to tell if a variable
is simply set, set to 1, or set to "true".

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-12 18:38:40 -07:00
Linus Torvalds
0a9b88b7de Add 'core.ignorecase' option
..and start using it for directory entry traversal (ie "git status" will
not consider entries that match an existing entry case-insensitively to
be a new file)

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-09 01:22:25 -07:00
Junio C Hamano
60b188a984 Merge branch 'js/branch-track'
* js/branch-track:
  doc: documentation update for the branch track changes
  branch: optionally setup branch.*.merge from upstream local branches

Conflicts:

	Documentation/config.txt
	Documentation/git-branch.txt
	Documentation/git-checkout.txt
	builtin-branch.c
	cache.h
	t/t7201-co.sh
2008-02-27 13:02:57 -08:00
Jeff King
c1867cea90 git_config_*: don't assume we are parsing a config file
These functions get called by other code, including parsing
config options from the command line. In that case,
config_file_name is NULL, leading to an ugly message or even
a segfault on some implementations of printf.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-20 20:21:43 -08:00
Jay Soffian
9ed36cfa35 branch: optionally setup branch.*.merge from upstream local branches
"git branch" and "git checkout -b" now honor --track option even when
the upstream branch is local.  Previously --track was silently ignored
when forking from a local branch.  Also the command did not error out
when --track was explicitly asked for but the forked point specified
was not an existing branch (i.e. when there is no way to set up the
tracking configuration), but now it correctly does.

The configuration setting branch.autosetupmerge can now be set to
"always", which is equivalent to using --track from the command line.
Setting branch.autosetupmerge to "true" will retain the former behavior
of only setting up branch.*.merge for remote upstream branches.

Includes test cases for the new functionality.

Signed-off-by: Jay Soffian <jaysoffian@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-19 21:17:45 -08:00
Junio C Hamano
2ac4b4b222 Merge branch 'sp/safecrlf'
* sp/safecrlf:
  safecrlf: Add mechanism to warn about irreversible crlf conversions
2008-02-16 17:59:20 -08:00
Junio C Hamano
fef1c4c0a0 Merge branch 'jk/noetcconfig'
* jk/noetcconfig:
  fix config reading in tests
  allow suppressing of global and system config

Conflicts:

	cache.h
2008-02-16 17:56:51 -08:00
Junio C Hamano
d5558581d2 Merge branch 'maint'
* maint:
  commit: discard index after setting up partial commit
  filter-branch: handle filenames that need quoting
  diff: Fix miscounting of --check output
  hg-to-git: fix parent analysis
  mailinfo: feed only one line to handle_filter() for QP input
  diff.c: add "const" qualifier to "char *cmd" member of "struct ll_diff_driver"
  Add "const" qualifier to "char *excludes_file".
  Add "const" qualifier to "char *editor_program".
  Add "const" qualifier to "char *pager_program".
  config: add 'git_config_string' to refactor string config variables.
  diff.c: remove useless check for value != NULL
  fast-import: check return value from unpack_entry()
  Validate nicknames of remote branches to prohibit confusing ones
  diff.c: replace a 'strdup' with 'xstrdup'.
  diff.c: fixup garding of config parser from value=NULL
2008-02-16 00:20:37 -08:00
Christian Couder
dfb068be8d Add "const" qualifier to "char *excludes_file".
Also use "git_config_string" to simplify "config.c" code
where "excludes_file" is set.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15 21:24:54 -08:00
Christian Couder
ee9601e6be Add "const" qualifier to "char *editor_program".
Also use "git_config_string" to simplify "config.c" code
where "editor_program" is set.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15 21:24:53 -08:00
Christian Couder
872da32d80 Add "const" qualifier to "char *pager_program".
Also use "git_config_string" to simplify "config.c" code
where "pager_program" is set.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15 21:24:53 -08:00
Christian Couder
ea5105a5e3 config: add 'git_config_string' to refactor string config variables.
In many places we just check if a value from the config file is not
NULL, then we duplicate it and return 0. This patch introduces the new
'git_config_string' function to do that.

This function is also used to refactor some code in 'config.c'.
Refactoring other files is left for other patches.

Also not all the code in "config.c" is refactored, because the function
takes a "const char **" as its first parameter, but in many places a
"char *" is used instead of a "const char *". (And C does not allow
using a "char **" instead of a "const char **" without a warning.)

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15 21:24:53 -08:00
Junio C Hamano
04f32cf1b3 Merge branch 'maint'
* maint: (35 commits)
  config.c: guard config parser from value=NULL
  builtin-log.c: guard config parser from value=NULL
  imap-send.c: guard config parser from value=NULL
  wt-status.c: guard config parser from value=NULL
  setup.c: guard config parser from value=NULL
  remote.c: guard config parser from value=NULL
  merge-recursive.c: guard config parser from value=NULL
  http.c: guard config parser from value=NULL
  help.c: guard config parser from value=NULL
  git.c: guard config parser from value=NULL
  diff.c: guard config parser from value=NULL
  convert.c: guard config parser from value=NULL
  connect.c: guard config parser from value=NULL
  builtin-tag.c: guard config parser from value=NULL
  builtin-show-branch.c: guard config parser from value=NULL
  builtin-reflog.c: guard config parser from value=NULL
  builtin-log.c: guard config parser from value=NULL
  builtin-config.c: guard config parser from value=NULL
  builtin-commit.c: guard config parser from value=NULL
  builtin-branch.c: guard config parser from value=NULL
  ...
2008-02-11 13:23:06 -08:00
Junio C Hamano
6c47d0e8f3 config.c: guard config parser from value=NULL
user.{name,email}, core.{pager,editor,excludesfile,whitespace} and
i18n.{commit,logoutput}encoding all expect string values.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-11 13:14:25 -08:00
Junio C Hamano
40ea4ed903 Add config_error_nonbool() helper function
This is used to report misconfigured configuration file that does not
give any value to a non-boolean variable, e.g.

	[section]
		var

It is perfectly fine to say it if the section.var is a boolean (it means
true), but if a variable expects a string value it should be flagged as
a configuration error.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-11 13:11:36 -08:00
Frank Lichtenheld
7a31cc0f96 config: Fix --unset for continuation lines
find_beginning_of_line didn't take into account that the
previous line might have ended with \ in which case it shouldn't
stop but continue its search.

Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-10 18:42:06 -08:00
Jeff King
ab88c36321 allow suppressing of global and system config
The GIT_CONFIG_NOGLOBAL and GIT_CONFIG_NOSYSTEM environment
variables are magic undocumented switches that can be used
to ensure a totally clean environment. This is necessary for
running reliable tests, since those config files may contain
settings that change the outcome of tests.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-06 14:52:23 -08:00
Steffen Prohaska
21e5ad50fc 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 13:07:28 -08:00
Johannes Sixt
ef5b9d6e22 Fix misuse of prefix_path()
When DEFAULT_GIT_TEMPLATE_DIR is specified as a relative path,
init-db made it relative to exec_path using prefix_path(), which
is wrong.  prefix_path() is about a file inside the work tree.
There was a similar misuse in config.c that takes relative
ETC_GITCONFIG path. Noticed by Junio C Hamano.

We concatenate the paths manually. (prefix_filename() won't do
because it expects a prefix with a trailing '/'.)

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-05 01:44:10 -08:00
Junio C Hamano
7a5375395f fix misuse of prefix_path()
When DEFAULT_GIT_TEMPLATE_DIR is specified as a relative path,
init-db made it relative to exec_path using prefix_path(), which
is wrong.  prefix_path() is about a file inside the work tree.
There was a similar misuse in config.c that takes relative
ETC_GITCONFIG path.

A convenience function prefix_filename() can concatenate two paths
to form a path that points at somewhere outside the work tree.
Use it in these codepaths instead.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-03 22:49:01 -08:00
Brandon Casey
4ed7cd3ab0 Improve use of lockfile API
Remove remaining double close(2)'s.  i.e. close() before
commit_locked_index() or commit_lock_file().

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-16 15:35:35 -08:00
Jeff King
02e5ba4ae6 config: handle lack of newline at end of file better
The config parsing routines use the static global
'config_file' to store the FILE* pointing to the current
config file being parsed. The function get_next_char()
automatically converts an EOF on this file to a newline for
the convenience of its callers, and it sets config_file to
NULL to indicate that EOF was reached.

This throws away useful information, though, since some
routines want to call ftell on 'config_file' to find out
exactly _where_ the routine ended. In the case of a key
ending at EOF boundary, we ended up segfaulting in some
cases (changing that key or adding another key in its
section), or failing to provide the necessary newline
(adding a new section).

This patch adds a new flag to indicate EOF and uses that
instead of setting config_file to NULL. It also makes sure
to add newlines where necessary for truncated input. All
three included tests fail without the patch.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-02 02:28:54 -08:00
Shawn O. Pearce
c8deb5a146 Improve error messages when int/long cannot be parsed from config
If a config file has become mildly corrupted due to a missing LF
we may discover some other option joined up against the end of a
numeric value.  For example:

	[section]
	number = 1auto

where the "auto" flag was meant to occur on the next line, below
"number", but the missing LF has caused it to no longer be its
own option.  Instead the word "auto" is parsed as a 'unit factor'
for the value of "number".

Before this change we got the confusing error message:

  fatal: unknown unit: 'auto'

which told us nothing about where the problem appeared.  Now we get:

  fatal: bad config value for 'aninvalid.unit'

which at least points the user in the right direction of where to
search for the incorrectly formatted configuration file.

Noticed by erikh on #git, which received the original error from
a simple `git checkout -b` due to a midly corrupted config.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-26 11:37:45 -08:00
Kristian Høgsberg
cb891a5989 Use a strbuf for building up section header and key/value pair strings.
Avoids horrible 1-byte write(2) calls and cleans up the logic a bit.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-14 20:42:26 -08:00
Junio C Hamano
4eb39e9bcc Merge branch 'jc/spht'
* jc/spht:
  Use gitattributes to define per-path whitespace rule
  core.whitespace: documentation updates.
  builtin-apply: teach whitespace_rules
  builtin-apply: rename "whitespace" variables and fix styles
  core.whitespace: add test for diff whitespace error highlighting
  git-diff: complain about >=8 consecutive spaces in initial indent
  War on whitespace: first, a bit of retreat.

Conflicts:

	cache.h
	config.c
	diff.c
2007-12-09 01:23:48 -08:00
Junio C Hamano
9b433e4496 Merge branch 'maint'
* maint:
  config.c:store_write_pair(): don't read the byte before a malloc'd buffer.
2007-12-09 00:56:44 -08:00
Jim Meyering
6281f39467 config.c:store_write_pair(): don't read the byte before a malloc'd buffer.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-08 14:24:13 -08:00
Junio C Hamano
cf1b7869f0 Use gitattributes to define per-path whitespace rule
The `core.whitespace` configuration variable allows you to define what
`diff` and `apply` should consider whitespace errors for all paths in
the project (See gitlink:git-config[1]).  This attribute gives you finer
control per path.

For example, if you have these in the .gitattributes:

    frotz   whitespace
    nitfol  -whitespace
    xyzzy   whitespace=-trailing

all types of whitespace problems known to git are noticed in path 'frotz'
(i.e. diff shows them in diff.whitespace color, and apply warns about
them), no whitespace problem is noticed in path 'nitfol', and the
default types of whitespace problems except "trailing whitespace" are
noticed for path 'xyzzy'.  A project with mixed Python and C might want
to have:

    *.c    whitespace
    *.py   whitespace=-indent-with-non-tab

in its toplevel .gitattributes file.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-06 00:45:30 -08:00
Junio C Hamano
dcf0c16ef1 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>
2007-11-16 17:05:02 -08:00
Johannes Sixt
7f0e39faa2 Allow ETC_GITCONFIG to be a relative path.
If ETC_GITCONFIG is not an absolute path, interpret it relative to
--exec-dir. This makes the installed binaries relocatable because the
prefix is not compiled-in.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-14 15:18:39 -08:00
Johannes Sixt
506b17b136 Introduce git_etc_gitconfig() that encapsulates access of ETC_GITCONFIG.
In a subsequent patch the path to the system-wide config file will be
computed. This is a preparation for that change. It turns all accesses
of ETC_GITCONFIG into function calls. There is no change in behavior.

As a consequence, config.c is the only file that needs the definition of
ETC_GITCONFIG. Hence, -DETC_GITCONFIG is removed from the CFLAGS and a
special build rule for config.c is introduced. As a side-effect, changing
the defintion of ETC_GITCONFIG (e.g. in config.mak) does not trigger a
complete rebuild anymore.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-14 15:18:39 -08:00
Junio C Hamano
039bc64e88 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 15:08:04 -08:00
Junio C Hamano
459fa6d0fe git-diff: complain about >=8 consecutive spaces in initial indent
This introduces a new whitespace error type, "indent-with-non-tab".
The error is about starting a line with 8 or more SP, instead of
indenting it with a HT.

This is not enabled by default, as some projects employ an
indenting policy to use only SPs and no HTs.

The kernel folks and git contributors may want to enable this
detection with:

	[core]
		whitespace = indent-with-non-tab

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-02 17:58:09 -07:00
Junio C Hamano
a9cc857ada War on whitespace: first, a bit of retreat.
This introduces core.whitespace configuration variable that lets
you specify the definition of "whitespace error".

Currently there are two kinds of whitespace errors defined:

 * trailing-space: trailing whitespaces at the end of the line.

 * space-before-tab: a SP appears immediately before HT in the
   indent part of the line.

You can specify the desired types of errors to be detected by
listing their names (unique abbreviations are accepted)
separated by comma.  By default, these two errors are always
detected, as that is the traditional behaviour.  You can disable
detection of a particular type of error by prefixing a '-' in
front of the name of the error, like this:

	[core]
		whitespace = -trailing-space

This patch teaches the code to output colored diff with
DIFF_WHITESPACE color to highlight the detected whitespace
errors to honor the new configuration.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-02 17:58:08 -07:00
Junio C Hamano
55d1932bce Merge branch 'cr/tag'
* cr/tag:
  Teach "git stripspace" the --strip-comments option
  Make verify-tag a builtin.
  builtin-tag.c: Fix two memory leaks and minor notation changes.
  launch_editor(): Heed GIT_EDITOR and core.editor settings
  Make git tag a builtin.
2007-08-10 23:17:46 -07:00
Bradford C. Smith
6cbf973c9a use lockfile.c routines in git_commit_set_multivar()
Changed git_commit_set_multivar() to use the routines provided by
lockfile.c to reduce code duplication and ensure consistent behavior.

Signed-off-by: Bradford C. Smith <bradford.carl.smith@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-27 00:02:05 -07:00
Johannes Schindelin
4d87b9c5db launch_editor(): Heed GIT_EDITOR and core.editor settings
In the commit 'Add GIT_EDITOR environment and core.editor
configuration variables', this was done for the shell scripts.
Port it over to builtin-tag's version of launch_editor(), which
is just about to be refactored into editor.c.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-21 16:51:14 -07:00
Brian Downing
0b87b6e081 Add functions for parsing integers with size suffixes
Split out the nnn{k,m,g} parsing code from git_config_int into
git_parse_long, so command-line parameters can enjoy the same
functionality.  Also add get_parse_ulong for unsigned values.

Make git_config_int use git_parse_long, and add get_config_ulong
as well.

Signed-off-by: Brian Downing <bdowning@lavos.net>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-12 14:32:35 -07:00
Brian Gernhardt
54adf3706c Add core.pager config variable.
This adds a configuration variable that performs the same function as,
but is overridden by, GIT_PAGER.

Signed-off-by: Brian Gernhardt <benji@silverinsanity.com>
Acked-by: Johannes E. Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-04 10:09:32 -07:00
Junio C Hamano
9378c16135 Add core.quotepath configuration variable.
We always quote "unusual" byte values in a pathname using
C-string style, to make it safer for parsing scripts that do not
handle NUL separated records well (or just too lazy to bother).
The absolute minimum bytes that need to be quoted for this
purpose are TAB, LF (and other control characters), double quote
and backslash.

However, we have also always quoted the bytes in high 8-bit
range; this was partly because we were lazy and partly because
we were being cautious.

This introduces an internal "quote_path_fully" variable, and
core.quotepath configuration variable to control it.  When set
to false, it does not quote bytes in high 8-bit range anymore
but passes them intact.

The variable defaults to "true" to retain the traditional
behaviour for now.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-24 15:11:42 -07:00
Junio C Hamano
b79d18c92d -Wold-style-definition fix
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-13 02:02:10 -07:00
Junio C Hamano
a6080a0a44 War on whitespace
This uses "git-apply --whitespace=strip" to fix whitespace errors that have
crept in to our source files over time.  There are a few files that need
to have trailing whitespaces (most notably, test vectors).  The results
still passes the test, and build result in Documentation/ area is unchanged.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-07 00:04:01 -07:00
Junio C Hamano
45bde46bfb Merge branch 'dh/pack'
* dh/pack:
  Custom compression levels for objects and packs
2007-05-20 02:19:19 -07:00
Junio C Hamano
cc93020f52 Merge branch 'np/pack'
* np/pack:
  deprecate the new loose object header format
  make "repack -f" imply "pack-objects --no-reuse-object"
  allow for undeltified objects not to be reused
2007-05-20 02:18:43 -07:00
Junio C Hamano
ae9ee41de8 git-config: do not forget seeing "a.b.var" means we are out of "a.var" section.
Earlier code tried to be half-careful and knew the logic that
seeing "a.var" after seeing "a.b.var" is a sign of the previous
"a.b." section has ended, but forgot it has to handle the other
way.  Seeing "a.b.var" after seeing "a.var" is a sign that "a."
section has ended, so a new "a.var2" variable should be added
before the location "a.b.var" appears.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-13 00:19:58 -07:00
Dana How
960ccca680 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>
2007-05-10 15:23:09 -07:00
Nicolas Pitre
726f852b0e deprecate the new loose object header format
Now that we encourage and actively preserve objects in a packed form
more agressively than we did at the time the new loose object format and
core.legacyheaders were introduced, that extra loose object format
doesn't appear to be worth it anymore.

Because the packing of loose objects has to go through the delta match
loop anyway, and since most of them should end up being deltified in
most cases, there is really little advantage to have this parallel loose
object format as the CPU savings it might provide is rather lost in the
noise in the end.

This patch gets rid of core.legacyheaders, preserve the legacy format as
the only writable loose object format and deprecate the other one to
keep things simpler.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-05-10 15:22:33 -07:00
Geert Bosch
01ebb9dc88 Fix renaming branch without config file
Make git_config_rename_section return success if no config file
exists.  Otherwise, renaming a branch would abort, leaving the
repository in an inconsistent state.

[jc: test]

Signed-off-by: Geert Bosch <bosch@gnat.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-05 14:53:22 -07:00
Shawn O. Pearce
18bdec1118 Limit the size of the new delta_base_cache
The new configuration variable core.deltaBaseCacheLimit allows the
user to control how much memory they are willing to give to Git for
caching base objects of deltas.  This is not normally meant to be
a user tweakable knob; the "out of the box" settings are meant to
be suitable for almost all workloads.

We default to 16 MiB under the assumption that the cache is not
meant to consume all of the user's available memory, and that the
cache's main purpose was to cache trees, for faster path limiters
during revision traversal.  Since trees tend to be relatively small
objects, this relatively small limit should still allow a large
number of objects.

On the other hand we don't want the cache to start storing 200
different versions of a 200 MiB blob, as this could easily blow
the entire address space of a 32 bit process.

We evict OBJ_BLOB from the cache first (credit goes to Junio) as
we want to favor OBJ_TREE within the cache.  These are the objects
that have the highest inflate() startup penalty, as they tend to
be small and thus don't have that much of a chance to ammortize
that penalty over the entire data.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-18 22:43:37 -07:00
Shawn O. Pearce
dbb2b41aa4 use xstrdup please
We generally prefer xstrdup to just plain strdup.
Make it so.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-16 02:12:14 -07:00
Junio C Hamano
bd1fc628b8 Merge branch 'js/config-rename'
* js/config-rename:
  git-config: document --rename-section, provide --remove-section
2007-03-08 00:53:38 -08:00
Shawn O. Pearce
dc49cd769b Cast 64 bit off_t to 32 bit size_t
Some systems have sizeof(off_t) == 8 while sizeof(size_t) == 4.
This implies that we are able to access and work on files whose
maximum length is around 2^63-1 bytes, but we can only malloc or
mmap somewhat less than 2^32-1 bytes of memory.

On such a system an implicit conversion of off_t to size_t can cause
the size_t to wrap, resulting in unexpected and exciting behavior.
Right now we are working around all gcc warnings generated by the
-Wshorten-64-to-32 option by passing the off_t through xsize_t().

In the future we should make xsize_t on such problematic platforms
detect the wrapping and die if such a file is accessed.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-07 11:15:26 -08:00
Paolo Bonzini
118f8b2413 git-config: document --rename-section, provide --remove-section
This patch documents the previously undocumented option --rename-section
and adds a new option to zap an entire section.

Signed-off-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-03 19:59:37 -08:00
Johannes Sixt
78a8d641c1 Add core.symlinks to mark filesystems that do not support symbolic links.
Some file systems that can host git repositories and their working copies
do not support symbolic links. But then if the repository contains a symbolic
link, it is impossible to check out the working copy.

This patch enables partial support of symbolic links so that it is possible
to check out a working copy on such a file system.  A new flag
core.symlinks (which is true by default) can be set to false to indicate
that the filesystem does not support symbolic links. In this case, symbolic
links that exist in the trees are checked out as small plain files, and
checking in modifications of these files preserve the symlink property in
the database (as long as an entry exists in the index).

Of course, this does not magically make symbolic links work on such defective
file systems; hence, this solution does not help if the working copy relies
on that an entry is a real symbolic link.

Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-03-02 16:58:05 -08:00
Junio C Hamano
cc58fc0684 Merge branch 'js/etc-config'
* js/etc-config:
  Make tests independent of global config files
  config: read system-wide defaults from /etc/gitconfig
2007-02-24 01:43:28 -08:00
Junio C Hamano
ef1a5c2fa8 Merge branches 'lt/crlf' and 'jc/apply-config'
* lt/crlf:
  Teach core.autocrlf to 'git apply'
  t0020: add test for auto-crlf
  Make AutoCRLF ternary variable.
  Lazy man's auto-CRLF

* jc/apply-config:
  t4119: test autocomputing -p<n> for traditional diff input.
  git-apply: guess correct -p<n> value for non-git patches.
  git-apply: notice "diff --git" patch again
  Fix botched "leak fix"
  t4119: add test for traditional patch and different p_value
  apply: fix memory leak in prefix_one()
  git-apply: require -p<n> when working in a subdirectory.
  git-apply: do not lose cwd when run from a subdirectory.
  Teach 'git apply' to look at $HOME/.gitconfig even outside of a repository
  Teach 'git apply' to look at $GIT_DIR/config
2007-02-22 21:34:36 -08:00
Johannes Schindelin
32043c9f8c config: read system-wide defaults from /etc/gitconfig
The settings in /etc/gitconfig can be overridden in ~/.gitconfig,
which in turn can be overridden in .git/config.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-19 23:05:16 -08:00
Junio C Hamano
5faaf24634 Make sure packedgitwindowsize is multiple of (pagesize * 2)
The next patch depends on this.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-14 13:20:41 -08:00
Linus Torvalds
d7f4633405 Make AutoCRLF ternary variable.
This allows you to do:

	[core]
		AutoCRLF = input

and it should do only the CRLF->LF translation (ie it simplifies CRLF only
when reading working tree files, but when checking out files, it leaves
the LF alone, and doesn't turn it into a CRLF).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-14 11:19:28 -08:00
Linus Torvalds
6c510bee20 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>
2007-02-14 11:19:22 -08:00
Pavel Roskin
9673a0b182 git-config --rename-section could rename wrong section
The "git-config --rename-section" implementation would match sections
that are substrings of the section name to be renamed.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-03 21:35:22 -08:00
Johannes Schindelin
6f71686e0b config_set_multivar(): disallow newlines in keys
This will no longer work:

$ git repo-config 'key.with
newline' some-value

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
2007-01-19 17:55:14 -08:00
Junio C Hamano
e861ce1692 Merge branch 'jc/bare'
* jc/bare:
  Disallow working directory commands in a bare repository.
  git-fetch: allow updating the current branch in a bare repository.
  Introduce is_bare_repository() and core.bare configuration variable
  Move initialization of log_all_ref_updates
2007-01-11 16:50:36 -08:00
Junio C Hamano
93c1e07947 config-set: check write-in-full returns in set_multivar
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-11 13:19:31 -08:00
Brian Gernhardt
cdd4fb15cf Auto-quote config values in config.c:store_write_pair()
Suggested by Jakub Narebski <jnareb@gmail.com> on the list.

When we send a value to store_write_pair(), make sure that the value
that gets read out matches the one passed in.  This means that for any
value that contains leading or trailing whitespace or any comment
character (# and ;), we need to surround it in quotes.

Signed-off-by: Brian Gernhardt <benji@silverinsanity.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-08 22:00:18 -08:00
Andy Whitcroft
480c9e521b short i/o: fix config updates to use write_in_full
We need to check that the writes we perform during the update of
the users configuration work.  Convert to using write_in_full().

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-08 15:44:47 -08:00
Junio C Hamano
7d1864ce67 Introduce is_bare_repository() and core.bare configuration variable
This removes the old is_bare_git_dir(const char *) to ask if a
directory, if it is a GIT_DIR, is a bare repository, and
replaces it with is_bare_repository(void *).  The function looks
at core.bare configuration variable if exists but uses the old
heuristics: if it is ".git" or ends with "/.git", then it does
not look like a bare repository, otherwise it does.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-07 21:36:35 -08:00
Junio C Hamano
76d4e079ad Merge branch 'master' into sp/mmap
* master:
  Documentation/config.txt (and repo-config manpage): mark-up fix.
  Teach Git how to parse standard power of 2 suffixes.
  Use /dev/null for update hook stdin.
  Redirect update hook stdout to stderr.
  Remove unnecessary argc parameter from run_command_v.
  Automatically detect a bare git repository.
  Replace "GIT_DIR" with GIT_DIR_ENVIRONMENT.
  Use PATH_MAX constant for --bare.
  Force core.filemode to false on Cygwin.
  Fix formatting for urls section of fetch, pull, and push manpages
  Fix yet another subtle xdl_merge() bug
  i18n: drop "encoding" header in the output after re-coding.
  commit-tree: cope with different ways "utf-8" can be spelled.
  Move commit reencoding parameter parsing to revision.c
  Documentation: minor rewording for git-log and git-show pages.
  Documentation: i18n commit log message notes.
  t3900: test log --encoding=none
  commit re-encoding: fix confusion between no and default conversion.
2006-12-30 22:42:43 -08:00
Shawn O. Pearce
d77a64d353 Teach Git how to parse standard power of 2 suffixes.
Sometimes its necessary to supply a value as a power of two in a
configuration parameter.  In this case the user may want to use the
standard suffixes such as K, M, or G to indicate that the numerical
value should be multiplied by a constant base before being used.

Shell scripts/etc. can also benefit from this automatic option
parsing with `git repo-config --int`.

[jc: with a couple of test and a slight input tightening]

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-30 22:22:14 -08:00
Shawn O. Pearce
c4712e4553 Replace mmap with xmmap, better handling MAP_FAILED.
In some cases we did not even bother to check the return value of
mmap() and just assume it worked.  This is bad, because if we are
out of virtual address space the kernel returned MAP_FAILED and we
would attempt to dereference that address, segfaulting without any
real error output to the user.

We are replacing all calls to mmap() with xmmap() and moving all
MAP_FAILED checking into that single location.  If a mmap call
fails we try to release enough least-recently-used pack windows
to possibly succeed, then retry the mmap() attempt.  If we cannot
mmap even after releasing pack memory then we die() as none of our
callers have any reasonable recovery strategy for a failed mmap.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-29 11:36:45 -08:00
Shawn O. Pearce
40be82723c Ensure core.packedGitWindowSize cannot be less than 2 pages.
We cannot allow a window to be smaller than 2 system pages.
This limitation is necessary to support the feature of use_pack()
where we always supply at least 20 bytes after the offset to help
the object header and delta base parsing routines.

If packedGitWindowSize were allowed to be as small as 1 system page
then we would be completely unable to access an object header which
spanned over a page as we would never be able to arrange a mapping
such that the header was contiguous in virtual memory.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-29 11:36:45 -08:00
Shawn O. Pearce
60bb8b1453 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>
2006-12-29 11:36:45 -08:00
Shawn O. Pearce
77ccc5bbd1 Introduce new config option for mmap limit.
Rather than hardcoding the maximum number of bytes which can be
mmapped from pack files we should make this value configurable,
allowing the end user to increase or decrease this limit on a
per-repository basis depending on the size of the repository
and the capabilities of their operating system.

In general users should not need to manually tune such a low-level
setting within the core code, but being able to artifically limit
the number of bytes which we can mmap at once from pack files will
make it easier to craft test cases for the new mmap sliding window
implementation.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-29 11:36:44 -08:00
Junio C Hamano
d2c11a38c4 UTF-8: introduce i18n.logoutputencoding.
It is plausible for somebody to want to view the commit log in a
different encoding from i18n.commitencoding -- the project's
policy may be UTF-8 and the user may be using a commit message
hook to run iconv to conform to that policy (and either not have
i18n.commitencoding to default to UTF-8 or have it explicitly
set to UTF-8).  Even then, Latin-1 may be more convenient for
the usual pager and the terminal the user uses.

The new variable i18n.logoutputencoding is used in preference to
i18n.commitencoding to decide what encoding to recode the log
output in when git-log and friends formats the commit log message.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-27 16:41:33 -08:00
Junio C Hamano
aa1cef54a2 Merge branch 'jc/clone'
* jc/clone:
  Move "no merge candidate" warning into git-pull
  Use preprocessor constants for environment variable names.
  Do not create $GIT_DIR/remotes/ directory anymore.
  Introduce GIT_TEMPLATE_DIR
  Revert "fix testsuite: make sure they use templates freshly built from the source"
  fix testsuite: make sure they use templates freshly built from the source
  git-clone: lose the traditional 'no-separate-remote' layout
  git-clone: lose the artificial "first" fetch refspec
  git-pull: refuse default merge without branch.*.merge
  git-clone: use wildcard specification for tracking branches
2006-12-20 13:56:14 -08:00
Junio C Hamano
85023577a8 simplify inclusion of system header files.
This is a mechanical clean-up of the way *.c files include
system header files.

 (1) sources under compat/, platform sha-1 implementations, and
     xdelta code are exempt from the following rules;

 (2) the first #include must be "git-compat-util.h" or one of
     our own header file that includes it first (e.g. config.h,
     builtin.h, pkt-line.h);

 (3) system headers that are included in "git-compat-util.h"
     need not be included in individual C source files.

 (4) "git-compat-util.h" does not have to include subsystem
     specific header files (e.g. expat.h).

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-20 09:51:35 -08:00
Junio C Hamano
fc1905bb93 config_rename_section: fix FILE* leak
Noticed by SungHyun Nam.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-19 22:30:59 -08:00
Junio C Hamano
d4ebc36c5e Use preprocessor constants for environment variable names.
We broke the discipline Linus set up to allow compiler help us
avoid typos in environment names in the early days of git over
time.  This defines a handful preprocessor constants for
environment variable names used in relatively core parts of the
system.

I've left out variable names specific to subsystems such as HTTP
and SSL as I do not think they are big problems.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-19 01:51:51 -08:00
Johannes Schindelin
0667fcfb62 add a function to rename sections in the config
Given a config like this:

	# A config
	[very.interesting.section]
		not

The command

	$ git repo-config --rename-section very.interesting.section bla.1

will lead to this config:

	# A config
	[bla "1"]
		not

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-16 13:28:20 -08:00
Andy Parkins
a159ca0cb7 Allow subcommand.color and color.subcommand color configuration
While adding colour to the branch command it was pointed out that a
config option like "branch.color" conflicts with the pre-existing
"branch.something" namespace used for specifying default merge urls and
branches.  The suggested solution was to flip the order of the
components to "color.branch", which I did for colourising branch.

This patch does the same thing for
  - git-log (color.diff)
  - git-status (color.status)
  - git-diff (color.diff)
  - pager (color.pager)

I haven't removed the old config options; but they should probably be
deprecated and eventually removed to prevent future namespace
collisions.  I've done this deprecation by changing the documentation
for the config file to match the new names; and adding the "color.XXX"
options to contrib/completion/git-completion.bash.

Unfortunately git-svn reads "diff.color" and "pager.color"; which I
don't like to change unilaterally.

Signed-off-by: Andy Parkins <andyparkins@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-13 01:47:36 -08:00
Linus Torvalds
38c5afa87e Allow '-' in config variable names
I need this in order to allow aliases of the same form as "ls-tree",
"rev-parse" etc, so that I can use

	[alias]
		my-cat=--paginate cat-file -p

to add a "git my-cat" command.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-30 19:39:12 -08:00
Shawn Pearce
9befac470b Replace uses of strdup with xstrdup.
Like xmalloc and xrealloc xstrdup dies with a useful message if
the native strdup() implementation returns NULL rather than a
valid pointer.

I just tried to use xstrdup in new code and found it to be missing.
However I expected it to be present as xmalloc and xrealloc are
already commonly used throughout the code.

[jc: removed the part that deals with last_XXX, which I am
 finding more and more dubious these days.]

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-02 03:24:37 -07:00
Jonas Fonseca
2d7320d0b0 Use xmalloc instead of malloc
Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-31 16:24:39 -07:00
Junio C Hamano
4cac42b132 free(NULL) is perfectly valid.
Jonas noticed some places say "if (X) free(X)" which is totally
unnecessary.

Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-27 21:19:39 -07:00
Matthias Lederhofer
aa086eb813 pager: config variable pager.color
enable/disable colored output when the pager is in use

Signed-off-by: Matthias Lederhofer <matled@gmx.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-31 15:32:24 -07:00
Linus Torvalds
93821bd97a sha1_file: add the ability to parse objects in "pack file format"
The pack-file format is slightly different from the traditional git
object format, in that it has a much denser binary header encoding.
The traditional format uses an ASCII string with type and length
information, which is somewhat wasteful.

A new object format starts with uncompressed binary header
followed by compressed payload -- this will allow us later to
copy the payload straight to packfiles.

Obviously they cannot be read by older versions of git, so for
now new object files are created with the traditional format.
core.legacyheaders configuration item, when set to false makes
the code write in new format for people to experiment with.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-13 23:11:56 -07:00
Junio C Hamano
624314fda7 boolean: accept yes and no as well
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-03 18:48:23 -07:00
Joachim B Haga
12f6c308d5 Make zlib compression level configurable, and change default.
With the change in default, "git add ." on kernel dir is about
twice as fast as before, with only minimal (0.5%) change in
object size. The speed difference is even more noticeable
when committing large files, which is now up to 8 times faster.

The configurability is through setting core.compression = [-1..9]
which maps to the zlib constants; -1 is the default, 0 is no
compression, and 1..9 are various speed/size tradeoffs, 9
being slowest.

Signed-off-by: Joachim B Haga (cjhaga@fys.uio.no)
Acked-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-03 13:55:11 -07:00
Peter Eriksen
817151e61a Rename safe_strncpy() to strlcpy().
This cleans up the use of safe_strncpy() even more.  Since it has the
same semantics as strlcpy() use this name instead.  Also move the
definition from inside path.c to its own file compat/strlcpy.c, and use
it conditionally at compile time, since some platforms already has
strlcpy().  It's included in the same way as compat/setenv.c.

Signed-off-by: Peter Eriksen <s022018@student.dtu.dk>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-24 23:16:25 -07:00
Johannes Schindelin
e33d0611c0 git_config: access() returns 0 on success, not > 0
Another late-night bug. Sorry again.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-20 01:21:53 -07:00
Johannes Schindelin
5f1a63e0ef Read configuration also from $HOME/.gitconfig
This patch is based on Pasky's, with three notable differences:

- I did not yet update the documentation
- I named it .gitconfig, not .gitrc
- git-repo-config does not barf when a unique key is overridden locally

The last means that if you have something like

	[alias]
		l = log --stat -M

in ~/.gitconfig, and

	[alias]
		l = log --stat -M next..

in $GIT_DIR/config, then

	git-repo-config alias.l

returns only one value, namely the value from $GIT_DIR/config.

If you set the environment variable GIT_CONFIG, $HOME/.gitconfig is not
read, and neither $GIT_DIR/config, but $GIT_CONFIG instead.

If you set GIT_CONFIG_LOCAL instead, it is interpreted instead of
$GIT_DIR/config, but $HOME/.gitconfig is still read.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-19 17:53:13 -07:00
Johannes Schindelin
9c3796fc04 Fix setting config variables with an alternative GIT_CONFIG
When setting a config variable, git_config_set() ignored the variables
GIT_CONFIG and GIT_CONFIG_LOCAL. Now, when GIT_CONFIG_LOCAL is set, it
will write to that file. If not, GIT_CONFIG is checked, and only as a
fallback, the change is written to $GIT_DIR/config.

Add a test for it, and also future-proof the test for the upcoming
$HOME/.gitconfig support.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-19 17:30:34 -07:00