2005-08-17 01:06:34 +00:00
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#include "cache.h"
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Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
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#include "dir.h"
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static int inside_git_dir = -1;
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static int inside_work_tree = -1;
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2005-08-17 01:06:34 +00:00
|
|
|
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
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|
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const char *prefix_path(const char *prefix, int len, const char *path)
|
|
|
|
{
|
|
|
|
const char *orig = path;
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|
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char *sanitized = xmalloc(len + strlen(path) + 1);
|
2008-02-19 21:29:40 +00:00
|
|
|
if (is_absolute_path(orig))
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
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strcpy(sanitized, path);
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else {
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if (len)
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memcpy(sanitized, prefix, len);
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strcpy(sanitized + len, path);
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2005-08-17 03:44:32 +00:00
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}
|
2009-02-07 15:08:28 +00:00
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if (normalize_path_copy(sanitized, sanitized))
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
|
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goto error_out;
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2008-02-19 21:29:40 +00:00
|
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if (is_absolute_path(orig)) {
|
2009-12-16 18:50:09 +00:00
|
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size_t len, total;
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
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const char *work_tree = get_git_work_tree();
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2009-12-16 18:50:09 +00:00
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if (!work_tree)
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goto error_out;
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len = strlen(work_tree);
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total = strlen(sanitized) + 1;
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
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if (strncmp(sanitized, work_tree, len) ||
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(sanitized[len] != '\0' && sanitized[len] != '/')) {
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error_out:
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2008-10-05 00:40:36 +00:00
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die("'%s' is outside repository", orig);
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setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
|
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}
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if (sanitized[len] == '/')
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len++;
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memmove(sanitized, sanitized + len, total - len);
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}
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return sanitized;
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2005-08-17 03:44:32 +00:00
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}
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2007-06-07 07:04:01 +00:00
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/*
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2005-11-26 07:14:15 +00:00
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* Unlike prefix_path, this should be used if the named file does
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* not have to interact with index entry; i.e. name of a random file
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* on the filesystem.
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*/
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const char *prefix_filename(const char *pfx, int pfx_len, const char *arg)
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{
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static char path[PATH_MAX];
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2009-09-16 08:20:22 +00:00
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#ifndef WIN32
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2007-11-25 22:29:03 +00:00
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if (!pfx || !*pfx || is_absolute_path(arg))
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2005-11-26 07:14:15 +00:00
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return arg;
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memcpy(path, pfx, pfx_len);
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strcpy(path + pfx_len, arg);
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2008-03-05 20:51:27 +00:00
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#else
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char *p;
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/* don't add prefix to absolute paths, but still replace '\' by '/' */
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if (is_absolute_path(arg))
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pfx_len = 0;
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else
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memcpy(path, pfx, pfx_len);
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strcpy(path + pfx_len, arg);
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for (p = path + pfx_len; *p; p++)
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if (*p == '\\')
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*p = '/';
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#endif
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2005-11-26 07:14:15 +00:00
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return path;
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}
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2009-10-18 07:27:24 +00:00
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int check_filename(const char *prefix, const char *arg)
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{
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const char *name;
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struct stat st;
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name = prefix ? prefix_filename(prefix, strlen(prefix), arg) : arg;
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if (!lstat(name, &st))
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return 1; /* file exists */
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if (errno == ENOENT || errno == ENOTDIR)
|
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return 0; /* file does not exist */
|
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die_errno("failed to stat '%s'", arg);
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}
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2009-12-07 10:10:50 +00:00
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static void NORETURN die_verify_filename(const char *prefix, const char *arg)
|
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{
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unsigned char sha1[20];
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unsigned mode;
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/* try a detailed diagnostic ... */
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get_sha1_with_mode_1(arg, sha1, &mode, 0, prefix);
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/* ... or fall back the most general message. */
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die("ambiguous argument '%s': unknown revision or path not in the working tree.\n"
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"Use '--' to separate paths from revisions", arg);
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}
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2006-04-26 17:15:54 +00:00
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/*
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* Verify a filename that we got as an argument for a pathspec
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* entry. Note that a filename that begins with "-" never verifies
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* as true, because even if such a filename were to exist, we want
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* it to be preceded by the "--" marker (or we want the user to
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* use a format like "./-filename")
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*/
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void verify_filename(const char *prefix, const char *arg)
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{
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if (*arg == '-')
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die("bad flag '%s' used after filename", arg);
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2009-10-18 07:27:24 +00:00
|
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if (check_filename(prefix, arg))
|
2006-04-26 17:15:54 +00:00
|
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return;
|
2009-12-07 10:10:50 +00:00
|
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die_verify_filename(prefix, arg);
|
2006-04-26 17:15:54 +00:00
|
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}
|
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|
|
|
2006-04-26 22:09:27 +00:00
|
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/*
|
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* Opposite of the above: the command line did not have -- marker
|
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* and we parsed the arg as a refname. It should not be interpretable
|
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* as a filename.
|
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*/
|
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void verify_non_filename(const char *prefix, const char *arg)
|
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|
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{
|
2007-06-03 14:48:16 +00:00
|
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if (!is_inside_work_tree() || is_inside_git_dir())
|
2007-01-20 02:09:34 +00:00
|
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return;
|
2006-04-26 22:09:27 +00:00
|
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|
if (*arg == '-')
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return; /* flag */
|
2009-10-18 07:27:24 +00:00
|
|
|
if (!check_filename(prefix, arg))
|
|
|
|
return;
|
|
|
|
die("ambiguous argument '%s': both revision and filename\n"
|
|
|
|
"Use '--' to separate filenames from revisions", arg);
|
2006-04-26 22:09:27 +00:00
|
|
|
}
|
|
|
|
|
2005-09-21 07:00:47 +00:00
|
|
|
const char **get_pathspec(const char *prefix, const char **pathspec)
|
2005-08-17 01:06:34 +00:00
|
|
|
{
|
2005-09-21 07:00:47 +00:00
|
|
|
const char *entry = *pathspec;
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
|
|
|
const char **src, **dst;
|
2005-08-17 01:06:34 +00:00
|
|
|
int prefixlen;
|
|
|
|
|
2005-08-17 03:44:32 +00:00
|
|
|
if (!prefix && !entry)
|
|
|
|
return NULL;
|
2005-08-17 01:06:34 +00:00
|
|
|
|
|
|
|
if (!entry) {
|
|
|
|
static const char *spec[2];
|
|
|
|
spec[0] = prefix;
|
|
|
|
spec[1] = NULL;
|
|
|
|
return spec;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Otherwise we have to re-write the entries.. */
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
|
|
|
src = pathspec;
|
|
|
|
dst = pathspec;
|
2005-08-17 03:44:32 +00:00
|
|
|
prefixlen = prefix ? strlen(prefix) : 0;
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
|
|
|
while (*src) {
|
|
|
|
const char *p = prefix_path(prefix, prefixlen, *src);
|
2008-10-05 00:40:36 +00:00
|
|
|
*(dst++) = p;
|
setup: sanitize absolute and funny paths in get_pathspec()
The prefix_path() function called from get_pathspec() is
responsible for translating list of user-supplied pathspecs to
list of pathspecs that is relative to the root of the work
tree. When working inside a subdirectory, the user-supplied
pathspecs are taken to be relative to the current subdirectory.
Among special path components in pathspecs, we used to accept
and interpret only "." ("the directory", meaning a no-op) and
".." ("up one level") at the beginning. Everything else was
passed through as-is.
For example, if you are in Documentation/ directory of the
project, you can name Documentation/howto/maintain-git.txt as:
howto/maintain-git.txt
../Documentation/howto/maitain-git.txt
../././Documentation/howto/maitain-git.txt
but not as:
howto/./maintain-git.txt
$(pwd)/howto/maintain-git.txt
This patch updates prefix_path() in several ways:
- If the pathspec is not absolute, prefix (i.e. the current
subdirectory relative to the root of the work tree, with
terminating slash, if not empty) and the pathspec is
concatenated first and used in the next step. Otherwise,
that absolute pathspec is used in the next step.
- Then special path components "." (no-op) and ".." (up one
level) are interpreted to simplify the path. It is an error
to have too many ".." to cause the intermediate result to
step outside of the input to this step.
- If the original pathspec was not absolute, the result from
the previous step is the resulting "sanitized" pathspec.
Otherwise, the result from the previous step is still
absolute, and it is an error if it does not begin with the
directory that corresponds to the root of the work tree. The
directory is stripped away from the result and is returned.
- In any case, the resulting pathspec in the array
get_pathspec() returns omit the ones that caused errors.
With this patch, the last two examples also behave as expected.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-29 06:44:27 +00:00
|
|
|
src++;
|
|
|
|
}
|
|
|
|
*dst = NULL;
|
|
|
|
if (!*pathspec)
|
|
|
|
return NULL;
|
|
|
|
return pathspec;
|
2005-08-17 01:06:34 +00:00
|
|
|
}
|
|
|
|
|
[PATCH] Make .git directory validation code test HEAD
Inspired by a report by Kalle Valo, this changes git-sh-setup-script and
the "setup_git_directory()" function to test that $GIT_DIR/HEAD is a
symlink, since a number of core git features depend on that these days.
We used to allow a regular file there, but git-fsck-cache has been
complaining about that for a while, and anything that uses branches
depends on the HEAD file being a symlink, so let's just encode that as a
fundamental requirement.
Before, a non-symlink HEAD file would appear to work, but have subtle bugs
like not having the HEAD show up as a valid reference (because it wasn't
under "refs"). Now, we will complain loudly, and the user can fix it up
trivially instead of getting strange behaviour.
This also removes the tests for "$GIT_DIR" and "$GIT_OBJECT_DIRECTORY"
being directories, since the other tests will implicitly test for that
anyway (ie the tests for HEAD, refs and 00 would fail).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-27 20:54:42 +00:00
|
|
|
/*
|
2006-12-31 04:30:19 +00:00
|
|
|
* Test if it looks like we're at a git directory.
|
2005-11-25 23:43:41 +00:00
|
|
|
* We want to see:
|
[PATCH] Make .git directory validation code test HEAD
Inspired by a report by Kalle Valo, this changes git-sh-setup-script and
the "setup_git_directory()" function to test that $GIT_DIR/HEAD is a
symlink, since a number of core git features depend on that these days.
We used to allow a regular file there, but git-fsck-cache has been
complaining about that for a while, and anything that uses branches
depends on the HEAD file being a symlink, so let's just encode that as a
fundamental requirement.
Before, a non-symlink HEAD file would appear to work, but have subtle bugs
like not having the HEAD show up as a valid reference (because it wasn't
under "refs"). Now, we will complain loudly, and the user can fix it up
trivially instead of getting strange behaviour.
This also removes the tests for "$GIT_DIR" and "$GIT_OBJECT_DIRECTORY"
being directories, since the other tests will implicitly test for that
anyway (ie the tests for HEAD, refs and 00 would fail).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-27 20:54:42 +00:00
|
|
|
*
|
2008-01-03 14:18:07 +00:00
|
|
|
* - either an objects/ directory _or_ the proper
|
[PATCH] Make .git directory validation code test HEAD
Inspired by a report by Kalle Valo, this changes git-sh-setup-script and
the "setup_git_directory()" function to test that $GIT_DIR/HEAD is a
symlink, since a number of core git features depend on that these days.
We used to allow a regular file there, but git-fsck-cache has been
complaining about that for a while, and anything that uses branches
depends on the HEAD file being a symlink, so let's just encode that as a
fundamental requirement.
Before, a non-symlink HEAD file would appear to work, but have subtle bugs
like not having the HEAD show up as a valid reference (because it wasn't
under "refs"). Now, we will complain loudly, and the user can fix it up
trivially instead of getting strange behaviour.
This also removes the tests for "$GIT_DIR" and "$GIT_OBJECT_DIRECTORY"
being directories, since the other tests will implicitly test for that
anyway (ie the tests for HEAD, refs and 00 would fail).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-27 20:54:42 +00:00
|
|
|
* GIT_OBJECT_DIRECTORY environment variable
|
2006-12-31 04:30:19 +00:00
|
|
|
* - a refs/ directory
|
2005-09-30 21:26:57 +00:00
|
|
|
* - either a HEAD symlink or a HEAD file that is formatted as
|
2007-01-02 07:31:08 +00:00
|
|
|
* a proper "ref:", or a regular file HEAD that has a properly
|
|
|
|
* formatted sha1 object name.
|
[PATCH] Make .git directory validation code test HEAD
Inspired by a report by Kalle Valo, this changes git-sh-setup-script and
the "setup_git_directory()" function to test that $GIT_DIR/HEAD is a
symlink, since a number of core git features depend on that these days.
We used to allow a regular file there, but git-fsck-cache has been
complaining about that for a while, and anything that uses branches
depends on the HEAD file being a symlink, so let's just encode that as a
fundamental requirement.
Before, a non-symlink HEAD file would appear to work, but have subtle bugs
like not having the HEAD show up as a valid reference (because it wasn't
under "refs"). Now, we will complain loudly, and the user can fix it up
trivially instead of getting strange behaviour.
This also removes the tests for "$GIT_DIR" and "$GIT_OBJECT_DIRECTORY"
being directories, since the other tests will implicitly test for that
anyway (ie the tests for HEAD, refs and 00 would fail).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-27 20:54:42 +00:00
|
|
|
*/
|
2006-12-31 04:30:19 +00:00
|
|
|
static int is_git_directory(const char *suspect)
|
[PATCH] Make .git directory validation code test HEAD
Inspired by a report by Kalle Valo, this changes git-sh-setup-script and
the "setup_git_directory()" function to test that $GIT_DIR/HEAD is a
symlink, since a number of core git features depend on that these days.
We used to allow a regular file there, but git-fsck-cache has been
complaining about that for a while, and anything that uses branches
depends on the HEAD file being a symlink, so let's just encode that as a
fundamental requirement.
Before, a non-symlink HEAD file would appear to work, but have subtle bugs
like not having the HEAD show up as a valid reference (because it wasn't
under "refs"). Now, we will complain loudly, and the user can fix it up
trivially instead of getting strange behaviour.
This also removes the tests for "$GIT_DIR" and "$GIT_OBJECT_DIRECTORY"
being directories, since the other tests will implicitly test for that
anyway (ie the tests for HEAD, refs and 00 would fail).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-27 20:54:42 +00:00
|
|
|
{
|
2006-12-31 04:30:19 +00:00
|
|
|
char path[PATH_MAX];
|
|
|
|
size_t len = strlen(suspect);
|
|
|
|
|
|
|
|
strcpy(path, suspect);
|
|
|
|
if (getenv(DB_ENVIRONMENT)) {
|
|
|
|
if (access(getenv(DB_ENVIRONMENT), X_OK))
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
strcpy(path + len, "/objects");
|
|
|
|
if (access(path, X_OK))
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
strcpy(path + len, "/refs");
|
|
|
|
if (access(path, X_OK))
|
2005-09-30 21:26:57 +00:00
|
|
|
return 0;
|
2006-12-31 04:30:19 +00:00
|
|
|
|
|
|
|
strcpy(path + len, "/HEAD");
|
2007-01-02 07:31:08 +00:00
|
|
|
if (validate_headref(path))
|
2006-12-31 04:30:19 +00:00
|
|
|
return 0;
|
|
|
|
|
2005-09-30 21:26:57 +00:00
|
|
|
return 1;
|
[PATCH] Make .git directory validation code test HEAD
Inspired by a report by Kalle Valo, this changes git-sh-setup-script and
the "setup_git_directory()" function to test that $GIT_DIR/HEAD is a
symlink, since a number of core git features depend on that these days.
We used to allow a regular file there, but git-fsck-cache has been
complaining about that for a while, and anything that uses branches
depends on the HEAD file being a symlink, so let's just encode that as a
fundamental requirement.
Before, a non-symlink HEAD file would appear to work, but have subtle bugs
like not having the HEAD show up as a valid reference (because it wasn't
under "refs"). Now, we will complain loudly, and the user can fix it up
trivially instead of getting strange behaviour.
This also removes the tests for "$GIT_DIR" and "$GIT_OBJECT_DIRECTORY"
being directories, since the other tests will implicitly test for that
anyway (ie the tests for HEAD, refs and 00 would fail).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-27 20:54:42 +00:00
|
|
|
}
|
|
|
|
|
2007-01-20 02:09:34 +00:00
|
|
|
int is_inside_git_dir(void)
|
|
|
|
{
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
if (inside_git_dir < 0)
|
|
|
|
inside_git_dir = is_inside_dir(get_git_dir());
|
|
|
|
return inside_git_dir;
|
2007-06-06 07:10:42 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int is_inside_work_tree(void)
|
|
|
|
{
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
if (inside_work_tree < 0)
|
|
|
|
inside_work_tree = is_inside_dir(get_git_work_tree());
|
|
|
|
return inside_work_tree;
|
2007-06-06 07:10:42 +00:00
|
|
|
}
|
|
|
|
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
/*
|
2010-02-04 05:23:18 +00:00
|
|
|
* set_work_tree() is only ever called if you set GIT_DIR explicitly.
|
2007-08-05 13:12:53 +00:00
|
|
|
* The old behaviour (which we retain here) is to set the work tree root
|
|
|
|
* to the cwd, unless overridden by the config, the command line, or
|
|
|
|
* GIT_WORK_TREE.
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
*/
|
2007-08-05 13:12:53 +00:00
|
|
|
static const char *set_work_tree(const char *dir)
|
2007-06-06 07:10:42 +00:00
|
|
|
{
|
2007-08-05 13:12:53 +00:00
|
|
|
char buffer[PATH_MAX + 1];
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
|
2007-08-05 13:12:53 +00:00
|
|
|
if (!getcwd(buffer, sizeof(buffer)))
|
|
|
|
die ("Could not get the current working directory");
|
|
|
|
git_work_tree_cfg = xstrdup(buffer);
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
inside_work_tree = 1;
|
|
|
|
|
2007-08-05 13:12:53 +00:00
|
|
|
return NULL;
|
2007-01-20 02:09:34 +00:00
|
|
|
}
|
|
|
|
|
2007-11-08 23:35:32 +00:00
|
|
|
void setup_work_tree(void)
|
|
|
|
{
|
2007-11-09 11:34:07 +00:00
|
|
|
const char *work_tree, *git_dir;
|
|
|
|
static int initialized = 0;
|
|
|
|
|
|
|
|
if (initialized)
|
|
|
|
return;
|
|
|
|
work_tree = get_git_work_tree();
|
|
|
|
git_dir = get_git_dir();
|
2007-11-03 11:23:11 +00:00
|
|
|
if (!is_absolute_path(git_dir))
|
Make git_dir a path relative to work_tree in setup_work_tree()
Once we find the absolute paths for git_dir and work_tree, we can make
git_dir a relative path since we know pwd will be work_tree. This should
save the kernel some time traversing the path to work_tree all the time
if git_dir is inside work_tree.
Daniel's patch didn't apply for me as-is, so I recreated it with some
differences, and here are the numbers from ten runs each.
There is some IO for me - probably due to more-or-less random flushing of
the journal - so the variation is bigger than I'd like, but whatever:
Before:
real 0m8.135s
real 0m7.933s
real 0m8.080s
real 0m7.954s
real 0m7.949s
real 0m8.112s
real 0m7.934s
real 0m8.059s
real 0m7.979s
real 0m8.038s
After:
real 0m7.685s
real 0m7.968s
real 0m7.703s
real 0m7.850s
real 0m7.995s
real 0m7.817s
real 0m7.963s
real 0m7.955s
real 0m7.848s
real 0m7.969s
Now, going by "best of ten" (on the assumption that the longer numbers
are all due to IO), I'm saying a 7.933s -> 7.685s reduction, and it does
seem to be outside of the noise (ie the "after" case never broke 8s, while
the "before" case did so half the time).
So looks like about 3% to me.
Doing it for a slightly smaller test-case (just the "arch" subdirectory)
gets more stable numbers probably due to not filling the journal with
metadata updates, so we have:
Before:
real 0m1.633s
real 0m1.633s
real 0m1.633s
real 0m1.632s
real 0m1.632s
real 0m1.630s
real 0m1.634s
real 0m1.631s
real 0m1.632s
real 0m1.632s
After:
real 0m1.610s
real 0m1.609s
real 0m1.610s
real 0m1.608s
real 0m1.607s
real 0m1.610s
real 0m1.609s
real 0m1.611s
real 0m1.608s
real 0m1.611s
where I'ld just take the averages and say 1.632 vs 1.610, which is just
over 1% peformance improvement.
So it's not in the noise, but it's not as big as I initially thought and
measured.
(That said, it obviously depends on how deep the working directory path is
too, and whether it is behind NFS or something else that might need to
cause more work to look up).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-19 19:34:06 +00:00
|
|
|
git_dir = make_absolute_path(git_dir);
|
2007-11-03 11:23:11 +00:00
|
|
|
if (!work_tree || chdir(work_tree))
|
|
|
|
die("This operation must be run in a work tree");
|
Make git_dir a path relative to work_tree in setup_work_tree()
Once we find the absolute paths for git_dir and work_tree, we can make
git_dir a relative path since we know pwd will be work_tree. This should
save the kernel some time traversing the path to work_tree all the time
if git_dir is inside work_tree.
Daniel's patch didn't apply for me as-is, so I recreated it with some
differences, and here are the numbers from ten runs each.
There is some IO for me - probably due to more-or-less random flushing of
the journal - so the variation is bigger than I'd like, but whatever:
Before:
real 0m8.135s
real 0m7.933s
real 0m8.080s
real 0m7.954s
real 0m7.949s
real 0m8.112s
real 0m7.934s
real 0m8.059s
real 0m7.979s
real 0m8.038s
After:
real 0m7.685s
real 0m7.968s
real 0m7.703s
real 0m7.850s
real 0m7.995s
real 0m7.817s
real 0m7.963s
real 0m7.955s
real 0m7.848s
real 0m7.969s
Now, going by "best of ten" (on the assumption that the longer numbers
are all due to IO), I'm saying a 7.933s -> 7.685s reduction, and it does
seem to be outside of the noise (ie the "after" case never broke 8s, while
the "before" case did so half the time).
So looks like about 3% to me.
Doing it for a slightly smaller test-case (just the "arch" subdirectory)
gets more stable numbers probably due to not filling the journal with
metadata updates, so we have:
Before:
real 0m1.633s
real 0m1.633s
real 0m1.633s
real 0m1.632s
real 0m1.632s
real 0m1.630s
real 0m1.634s
real 0m1.631s
real 0m1.632s
real 0m1.632s
After:
real 0m1.610s
real 0m1.609s
real 0m1.610s
real 0m1.608s
real 0m1.607s
real 0m1.610s
real 0m1.609s
real 0m1.611s
real 0m1.608s
real 0m1.611s
where I'ld just take the averages and say 1.632 vs 1.610, which is just
over 1% peformance improvement.
So it's not in the noise, but it's not as big as I initially thought and
measured.
(That said, it obviously depends on how deep the working directory path is
too, and whether it is behind NFS or something else that might need to
cause more work to look up).
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-19 19:34:06 +00:00
|
|
|
set_git_dir(make_relative_path(git_dir, work_tree));
|
2007-11-09 11:34:07 +00:00
|
|
|
initialized = 1;
|
2007-11-03 11:23:11 +00:00
|
|
|
}
|
|
|
|
|
2007-12-05 13:33:32 +00:00
|
|
|
static int check_repository_format_gently(int *nongit_ok)
|
|
|
|
{
|
2008-05-14 17:46:53 +00:00
|
|
|
git_config(check_repository_format_version, NULL);
|
2007-12-05 13:33:32 +00:00
|
|
|
if (GIT_REPO_VERSION < repository_format_version) {
|
|
|
|
if (!nongit_ok)
|
|
|
|
die ("Expected git repo version <= %d, found %d",
|
|
|
|
GIT_REPO_VERSION, repository_format_version);
|
|
|
|
warning("Expected git repo version <= %d, found %d",
|
|
|
|
GIT_REPO_VERSION, repository_format_version);
|
|
|
|
warning("Please upgrade Git");
|
|
|
|
*nongit_ok = -1;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2008-02-20 22:13:13 +00:00
|
|
|
/*
|
|
|
|
* Try to read the location of the git directory from the .git file,
|
|
|
|
* return path to git directory if found.
|
|
|
|
*/
|
|
|
|
const char *read_gitfile_gently(const char *path)
|
|
|
|
{
|
|
|
|
char *buf;
|
2010-01-09 03:36:41 +00:00
|
|
|
char *dir;
|
|
|
|
const char *slash;
|
2008-02-20 22:13:13 +00:00
|
|
|
struct stat st;
|
|
|
|
int fd;
|
|
|
|
size_t len;
|
|
|
|
|
|
|
|
if (stat(path, &st))
|
|
|
|
return NULL;
|
|
|
|
if (!S_ISREG(st.st_mode))
|
|
|
|
return NULL;
|
|
|
|
fd = open(path, O_RDONLY);
|
|
|
|
if (fd < 0)
|
2009-06-27 15:58:46 +00:00
|
|
|
die_errno("Error opening '%s'", path);
|
2008-02-20 22:13:13 +00:00
|
|
|
buf = xmalloc(st.st_size + 1);
|
|
|
|
len = read_in_full(fd, buf, st.st_size);
|
|
|
|
close(fd);
|
|
|
|
if (len != st.st_size)
|
|
|
|
die("Error reading %s", path);
|
|
|
|
buf[len] = '\0';
|
|
|
|
if (prefixcmp(buf, "gitdir: "))
|
|
|
|
die("Invalid gitfile format: %s", path);
|
|
|
|
while (buf[len - 1] == '\n' || buf[len - 1] == '\r')
|
|
|
|
len--;
|
|
|
|
if (len < 9)
|
|
|
|
die("No path in gitfile: %s", path);
|
|
|
|
buf[len] = '\0';
|
2010-01-09 03:36:41 +00:00
|
|
|
dir = buf + 8;
|
|
|
|
|
|
|
|
if (!is_absolute_path(dir) && (slash = strrchr(path, '/'))) {
|
|
|
|
size_t pathlen = slash+1 - path;
|
|
|
|
size_t dirlen = pathlen + len - 8;
|
|
|
|
dir = xmalloc(dirlen + 1);
|
|
|
|
strncpy(dir, path, pathlen);
|
|
|
|
strncpy(dir + pathlen, buf + 8, len - 8);
|
|
|
|
dir[dirlen] = '\0';
|
|
|
|
free(buf);
|
|
|
|
buf = dir;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!is_git_directory(dir))
|
|
|
|
die("Not a git repository: %s", dir);
|
|
|
|
path = make_absolute_path(dir);
|
|
|
|
|
2008-02-20 22:13:13 +00:00
|
|
|
free(buf);
|
|
|
|
return path;
|
|
|
|
}
|
|
|
|
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
/*
|
|
|
|
* We cannot decide in this function whether we are in the work tree or
|
|
|
|
* not, since the config can only be read _after_ this function was called.
|
|
|
|
*/
|
2005-11-26 07:14:15 +00:00
|
|
|
const char *setup_git_directory_gently(int *nongit_ok)
|
2005-08-17 01:06:34 +00:00
|
|
|
{
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
const char *work_tree_env = getenv(GIT_WORK_TREE_ENVIRONMENT);
|
2008-05-20 06:49:26 +00:00
|
|
|
const char *env_ceiling_dirs = getenv(CEILING_DIRECTORIES_ENVIRONMENT);
|
2005-08-17 01:06:34 +00:00
|
|
|
static char cwd[PATH_MAX+1];
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
const char *gitdirenv;
|
2008-02-20 22:13:13 +00:00
|
|
|
const char *gitfile_dir;
|
2008-05-20 06:49:26 +00:00
|
|
|
int len, offset, ceil_offset;
|
2005-08-17 01:06:34 +00:00
|
|
|
|
2008-03-25 21:06:26 +00:00
|
|
|
/*
|
|
|
|
* Let's assume that we are in a git repository.
|
|
|
|
* If it turns out later that we are somewhere else, the value will be
|
|
|
|
* updated accordingly.
|
|
|
|
*/
|
|
|
|
if (nongit_ok)
|
|
|
|
*nongit_ok = 0;
|
|
|
|
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
/*
|
|
|
|
* If GIT_DIR is set explicitly, we're not going
|
|
|
|
* to do any discovery, but we still do repository
|
|
|
|
* validation.
|
|
|
|
*/
|
2006-12-31 04:30:19 +00:00
|
|
|
gitdirenv = getenv(GIT_DIR_ENVIRONMENT);
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
if (gitdirenv) {
|
|
|
|
if (PATH_MAX - 40 < strlen(gitdirenv))
|
|
|
|
die("'$%s' too big", GIT_DIR_ENVIRONMENT);
|
|
|
|
if (is_git_directory(gitdirenv)) {
|
2007-10-16 23:37:36 +00:00
|
|
|
static char buffer[1024 + 1];
|
|
|
|
const char *retval;
|
|
|
|
|
2007-11-29 12:21:39 +00:00
|
|
|
if (!work_tree_env) {
|
|
|
|
retval = set_work_tree(gitdirenv);
|
2007-12-05 13:33:32 +00:00
|
|
|
/* config may override worktree */
|
|
|
|
if (check_repository_format_gently(nongit_ok))
|
|
|
|
return NULL;
|
2007-11-29 12:21:39 +00:00
|
|
|
return retval;
|
|
|
|
}
|
2007-12-05 13:33:32 +00:00
|
|
|
if (check_repository_format_gently(nongit_ok))
|
|
|
|
return NULL;
|
2007-10-16 23:37:36 +00:00
|
|
|
retval = get_relative_cwd(buffer, sizeof(buffer) - 1,
|
|
|
|
get_git_work_tree());
|
|
|
|
if (!retval || !*retval)
|
|
|
|
return NULL;
|
|
|
|
set_git_dir(make_absolute_path(gitdirenv));
|
|
|
|
if (chdir(work_tree_env) < 0)
|
2009-06-27 15:58:47 +00:00
|
|
|
die_errno ("Could not chdir to '%s'", work_tree_env);
|
2007-10-16 23:37:36 +00:00
|
|
|
strcat(buffer, "/");
|
|
|
|
return retval;
|
2007-06-06 07:10:42 +00:00
|
|
|
}
|
2006-08-04 15:46:19 +00:00
|
|
|
if (nongit_ok) {
|
2006-07-30 01:30:29 +00:00
|
|
|
*nongit_ok = 1;
|
|
|
|
return NULL;
|
|
|
|
}
|
2006-12-31 04:30:19 +00:00
|
|
|
die("Not a git repository: '%s'", gitdirenv);
|
2005-11-25 23:43:41 +00:00
|
|
|
}
|
2005-08-17 01:06:34 +00:00
|
|
|
|
2007-07-04 19:45:42 +00:00
|
|
|
if (!getcwd(cwd, sizeof(cwd)-1))
|
2009-06-27 15:58:47 +00:00
|
|
|
die_errno("Unable to read current working directory");
|
2005-08-17 01:06:34 +00:00
|
|
|
|
2008-05-20 06:49:26 +00:00
|
|
|
ceil_offset = longest_ancestor_length(cwd, env_ceiling_dirs);
|
2008-07-07 09:17:23 +00:00
|
|
|
if (ceil_offset < 0 && has_dos_drive_prefix(cwd))
|
|
|
|
ceil_offset = 1;
|
2005-08-17 01:06:34 +00:00
|
|
|
|
2007-06-06 07:10:42 +00:00
|
|
|
/*
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
* Test in the following order (relative to the cwd):
|
2008-02-20 22:13:13 +00:00
|
|
|
* - .git (file containing "gitdir: <path>")
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
* - .git/
|
|
|
|
* - ./ (bare)
|
2008-02-20 22:13:13 +00:00
|
|
|
* - ../.git
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
* - ../.git/
|
|
|
|
* - ../ (bare)
|
|
|
|
* - ../../.git/
|
|
|
|
* etc.
|
2007-06-06 07:10:42 +00:00
|
|
|
*/
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
offset = len = strlen(cwd);
|
|
|
|
for (;;) {
|
2008-02-20 22:13:13 +00:00
|
|
|
gitfile_dir = read_gitfile_gently(DEFAULT_GIT_DIR_ENVIRONMENT);
|
|
|
|
if (gitfile_dir) {
|
|
|
|
if (set_git_dir(gitfile_dir))
|
|
|
|
die("Repository setup failed");
|
|
|
|
break;
|
|
|
|
}
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
if (is_git_directory(DEFAULT_GIT_DIR_ENVIRONMENT))
|
|
|
|
break;
|
|
|
|
if (is_git_directory(".")) {
|
|
|
|
inside_git_dir = 1;
|
|
|
|
if (!work_tree_env)
|
|
|
|
inside_work_tree = 0;
|
2009-01-16 15:37:33 +00:00
|
|
|
if (offset != len) {
|
|
|
|
cwd[offset] = '\0';
|
|
|
|
setenv(GIT_DIR_ENVIRONMENT, cwd, 1);
|
|
|
|
} else
|
|
|
|
setenv(GIT_DIR_ENVIRONMENT, ".", 1);
|
2007-12-05 13:33:32 +00:00
|
|
|
check_repository_format_gently(nongit_ok);
|
2007-06-06 07:10:42 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
2008-05-20 06:49:26 +00:00
|
|
|
while (--offset > ceil_offset && cwd[offset] != '/');
|
|
|
|
if (offset <= ceil_offset) {
|
|
|
|
if (nongit_ok) {
|
|
|
|
if (chdir(cwd))
|
2009-06-27 15:58:47 +00:00
|
|
|
die_errno("Cannot come back to cwd");
|
2008-05-20 06:49:26 +00:00
|
|
|
*nongit_ok = 1;
|
|
|
|
return NULL;
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
}
|
2008-12-21 23:17:32 +00:00
|
|
|
die("Not a git repository (or any of the parent directories): %s", DEFAULT_GIT_DIR_ENVIRONMENT);
|
2008-05-20 06:49:26 +00:00
|
|
|
}
|
2008-12-05 00:36:46 +00:00
|
|
|
if (chdir(".."))
|
2009-06-27 15:58:46 +00:00
|
|
|
die_errno("Cannot change to '%s/..'", cwd);
|
2007-06-06 07:10:42 +00:00
|
|
|
}
|
|
|
|
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
inside_git_dir = 0;
|
|
|
|
if (!work_tree_env)
|
|
|
|
inside_work_tree = 1;
|
|
|
|
git_work_tree_cfg = xstrndup(cwd, offset);
|
2007-12-05 13:33:32 +00:00
|
|
|
if (check_repository_format_gently(nongit_ok))
|
|
|
|
return NULL;
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
if (offset == len)
|
2005-08-17 01:06:34 +00:00
|
|
|
return NULL;
|
|
|
|
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
/* Make "offset" point to past the '/', and add a '/' at the end */
|
|
|
|
offset++;
|
|
|
|
cwd[len++] = '/';
|
|
|
|
cwd[len] = 0;
|
|
|
|
return cwd + offset;
|
2005-08-17 01:06:34 +00:00
|
|
|
}
|
2005-11-25 23:43:41 +00:00
|
|
|
|
2006-06-10 06:09:49 +00:00
|
|
|
int git_config_perm(const char *var, const char *value)
|
|
|
|
{
|
2008-04-16 08:34:24 +00:00
|
|
|
int i;
|
|
|
|
char *endptr;
|
|
|
|
|
|
|
|
if (value == NULL)
|
|
|
|
return PERM_GROUP;
|
|
|
|
|
|
|
|
if (!strcmp(value, "umask"))
|
|
|
|
return PERM_UMASK;
|
|
|
|
if (!strcmp(value, "group"))
|
|
|
|
return PERM_GROUP;
|
|
|
|
if (!strcmp(value, "all") ||
|
|
|
|
!strcmp(value, "world") ||
|
|
|
|
!strcmp(value, "everybody"))
|
|
|
|
return PERM_EVERYBODY;
|
|
|
|
|
|
|
|
/* Parse octal numbers */
|
|
|
|
i = strtol(value, &endptr, 8);
|
|
|
|
|
|
|
|
/* If not an octal number, maybe true/false? */
|
|
|
|
if (*endptr != 0)
|
|
|
|
return git_config_bool(var, value) ? PERM_GROUP : PERM_UMASK;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Treat values 0, 1 and 2 as compatibility cases, otherwise it is
|
2009-03-25 23:19:36 +00:00
|
|
|
* a chmod value to restrict to.
|
2008-04-16 08:34:24 +00:00
|
|
|
*/
|
|
|
|
switch (i) {
|
|
|
|
case PERM_UMASK: /* 0 */
|
|
|
|
return PERM_UMASK;
|
|
|
|
case OLD_PERM_GROUP: /* 1 */
|
|
|
|
return PERM_GROUP;
|
|
|
|
case OLD_PERM_EVERYBODY: /* 2 */
|
|
|
|
return PERM_EVERYBODY;
|
2006-06-10 06:09:49 +00:00
|
|
|
}
|
2008-04-16 08:34:24 +00:00
|
|
|
|
|
|
|
/* A filemode value was given: 0xxx */
|
|
|
|
|
|
|
|
if ((i & 0600) != 0600)
|
|
|
|
die("Problem with core.sharedRepository filemode value "
|
|
|
|
"(0%.3o).\nThe owner of files must always have "
|
|
|
|
"read and write permissions.", i);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Mask filemode value. Others can not get write permission.
|
|
|
|
* x flags for directories are handled separately.
|
|
|
|
*/
|
2009-03-25 23:19:36 +00:00
|
|
|
return -(i & 0666);
|
2006-06-10 06:09:49 +00:00
|
|
|
}
|
|
|
|
|
2008-05-14 17:46:53 +00:00
|
|
|
int check_repository_format_version(const char *var, const char *value, void *cb)
|
2005-11-25 23:59:09 +00:00
|
|
|
{
|
2007-07-29 23:24:38 +00:00
|
|
|
if (strcmp(var, "core.repositoryformatversion") == 0)
|
|
|
|
repository_format_version = git_config_int(var, value);
|
2005-12-22 22:13:56 +00:00
|
|
|
else if (strcmp(var, "core.sharedrepository") == 0)
|
2006-06-10 06:09:49 +00:00
|
|
|
shared_repository = git_config_perm(var, value);
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
else if (strcmp(var, "core.bare") == 0) {
|
|
|
|
is_bare_repository_cfg = git_config_bool(var, value);
|
|
|
|
if (is_bare_repository_cfg == 1)
|
|
|
|
inside_work_tree = -1;
|
|
|
|
} else if (strcmp(var, "core.worktree") == 0) {
|
2008-02-11 19:00:32 +00:00
|
|
|
if (!value)
|
|
|
|
return config_error_nonbool(var);
|
Avoid unnecessary "if-before-free" tests.
This change removes all obvious useless if-before-free tests.
E.g., it replaces code like this:
if (some_expression)
free (some_expression);
with the now-equivalent:
free (some_expression);
It is equivalent not just because POSIX has required free(NULL)
to work for a long time, but simply because it has worked for
so long that no reasonable porting target fails the test.
Here's some evidence from nearly 1.5 years ago:
http://www.winehq.org/pipermail/wine-patches/2006-October/031544.html
FYI, the change below was prepared by running the following:
git ls-files -z | xargs -0 \
perl -0x3b -pi -e \
's/\bif\s*\(\s*(\S+?)(?:\s*!=\s*NULL)?\s*\)\s+(free\s*\(\s*\1\s*\))/$2/s'
Note however, that it doesn't handle brace-enclosed blocks like
"if (x) { free (x); }". But that's ok, since there were none like
that in git sources.
Beware: if you do use the above snippet, note that it can
produce syntactically invalid C code. That happens when the
affected "if"-statement has a matching "else".
E.g., it would transform this
if (x)
free (x);
else
foo ();
into this:
free (x);
else
foo ();
There were none of those here, either.
If you're interested in automating detection of the useless
tests, you might like the useless-if-before-free script in gnulib:
[it *does* detect brace-enclosed free statements, and has a --name=S
option to make it detect free-like functions with different names]
http://git.sv.gnu.org/gitweb/?p=gnulib.git;a=blob;f=build-aux/useless-if-before-free
Addendum:
Remove one more (in imap-send.c), spotted by Jean-Luc Herren <jlh@gmx.ch>.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-01-31 17:26:32 +00:00
|
|
|
free(git_work_tree_cfg);
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
git_work_tree_cfg = xstrdup(value);
|
|
|
|
inside_work_tree = -1;
|
|
|
|
}
|
2007-07-29 23:24:38 +00:00
|
|
|
return 0;
|
2005-11-25 23:59:09 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int check_repository_format(void)
|
|
|
|
{
|
2007-12-05 13:33:32 +00:00
|
|
|
return check_repository_format_gently(NULL);
|
2005-11-25 23:59:09 +00:00
|
|
|
}
|
|
|
|
|
2005-11-25 23:43:41 +00:00
|
|
|
const char *setup_git_directory(void)
|
|
|
|
{
|
2005-11-26 07:14:15 +00:00
|
|
|
const char *retval = setup_git_directory_gently(NULL);
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
|
|
|
|
/* If the work tree is not the default one, recompute prefix */
|
|
|
|
if (inside_work_tree < 0) {
|
|
|
|
static char buffer[PATH_MAX + 1];
|
|
|
|
char *rel;
|
|
|
|
if (retval && chdir(retval))
|
2009-06-27 15:58:47 +00:00
|
|
|
die_errno ("Could not jump back into original cwd");
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
rel = get_relative_cwd(buffer, PATH_MAX, get_git_work_tree());
|
2008-08-30 09:15:32 +00:00
|
|
|
if (rel && *rel && chdir(get_git_work_tree()))
|
2009-06-27 15:58:47 +00:00
|
|
|
die_errno ("Could not jump to working directory");
|
Clean up work-tree handling
The old version of work-tree support was an unholy mess, barely readable,
and not to the point.
For example, why do you have to provide a worktree, when it is not used?
As in "git status". Now it works.
Another riddle was: if you can have work trees inside the git dir, why
are some programs complaining that they need a work tree?
IOW it is allowed to call
$ git --git-dir=../ --work-tree=. bla
when you really want to. In this case, you are both in the git directory
and in the working tree. So, programs have to actually test for the right
thing, namely if they are inside a working tree, and not if they are
inside a git directory.
Also, GIT_DIR=../.git should behave the same as if no GIT_DIR was
specified, unless there is a repository in the current working directory.
It does now.
The logic to determine if a repository is bare, or has a work tree
(tertium non datur), is this:
--work-tree=bla overrides GIT_WORK_TREE, which overrides core.bare = true,
which overrides core.worktree, which overrides GIT_DIR/.. when GIT_DIR
ends in /.git, which overrides the directory in which .git/ was found.
In related news, a long standing bug was fixed: when in .git/bla/x.git/,
which is a bare repository, git formerly assumed ../.. to be the
appropriate git dir. This problem was reported by Shawn Pearce to have
caused much pain, where a colleague mistakenly ran "git init" in "/" a
long time ago, and bare repositories just would not work.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-01 00:30:14 +00:00
|
|
|
return rel && *rel ? strcat(rel, "/") : NULL;
|
|
|
|
}
|
|
|
|
|
2005-11-25 23:43:41 +00:00
|
|
|
return retval;
|
|
|
|
}
|