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The current implementation of git_path() is essentially the same as
that of vsnpath(), with two minor differences. First, git_path()
currently insists that the git directory path is no longer than
PATH_MAX-100 characters in length. However, vsnpath() does not
attempt this arbitrary 100 character reservation for the remaining
path components. Second, vsnpath() uses the "is_dir_sep()" macro,
rather than comparing directly to '/', to determine if the git_dir
path component ends with a path separator.
In order to benefit from the above improvements, along with increased
compatability with git_snpath() and git_pathdup(), we reimplement the
git_path() function using vsnpath().
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The git_snpath() and git_pathdup() functions both use the (static)
function vsnpath() in their implementation. Also, they both discard
the return value of vsnpath(), which has the effect of ignoring the
side effect of calling cleanup_path() in the non-error return path.
In order to ensure that the required cleanup happens, we use the
pointer returned by vsnpath(), rather than the buffer passed into
vsnpath(), to derive the return value from git_snpath() and
git_pathdup().
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In particular, the git_vsnpath() function, despite the 'git_' prefix
suggesting otherwise, is (correctly) declared with file scope.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach git to read the "gitconfig" information from a new location,
$XDG_CONFIG_HOME/git/config; this allows the user to avoid
cluttering $HOME with many per-application configuration files.
In the order of reading, this file comes between the global
configuration file (typically $HOME/.gitconfig) and the system wide
configuration file (typically /etc/gitconfig).
We do not write to this new location (yet).
If $XDG_CONFIG_HOME is either not set or empty, $HOME/.config/git/config
will be used. This is in line with XDG specification.
If the new file does not exist, the behavior is unchanged.
Signed-off-by: Huynh Khoi Nguyen Nguyen <Huynh-Khoi-Nguyen.Nguyen@ensimag.imag.fr>
Signed-off-by: Valentin Duperray <Valentin.Duperray@ensimag.imag.fr>
Signed-off-by: Franck Jonas <Franck.Jonas@ensimag.imag.fr>
Signed-off-by: Lucien Kong <Lucien.Kong@ensimag.imag.fr>
Signed-off-by: Thomas Nguy <Thomas.Nguy@ensimag.imag.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When you specify a local repository on the command line of
clone, ls-remote, upload-pack, receive-pack, or upload-archive,
or in a request to git-daemon, we perform a little bit of
lookup magic, doing things like looking in working trees for
.git directories and appending ".git" for bare repos.
For clone, this magic happens in get_repo_path. For
everything else, it happens in enter_repo. In both cases,
there are some ambiguous or confusing cases that aren't
handled well, and there is one case that is not handled the
same by both methods.
This patch tries to provide (and test!) standard, sensible
lookup rules for both code paths. The intended changes are:
1. When looking up "foo", we have always preferred
a working tree "foo" (containing "foo/.git" over the
bare "foo.git". But we did not prefer a bare "foo" over
"foo.git". With this patch, we do so.
2. We would select directories that existed but didn't
actually look like git repositories. With this patch,
we make sure a selected directory looks like a git
repo. Not only is this more sensible in general, but it
will help anybody who is negatively affected by change
(1) negatively (e.g., if they had "foo.git" next to its
separate work tree "foo", and expect to keep finding
"foo.git" when they reference "foo").
3. The enter_repo code path would, given "foo", look for
"foo.git/.git" (i.e., do the ".git" append magic even
for a repo with working tree). The clone code path did
not; with this patch, they now behave the same.
In the unlikely case of a working tree overlaying a bare
repo (i.e., a ".git" directory _inside_ a bare repo), we
continue to treat it as a working tree (prefering the
"inner" .git over the bare repo). This is mainly because the
combination seems nonsensical, and I'd rather stick with
existing behavior on the off chance that somebody is relying
on it.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The enter_repo() function is used to navigate into a .git
directory. It knows how to find standard alternatives (DWIM) but
it doesn't handle gitfiles created by git init --separate-git-dir.
This means that git-fetch and others do not work with repositories
using the separate-git-dir mechanism.
Teach enter_repo() to deal with the gitfile mechanism by resolving
the path to the redirected path and continuing tests on that path
instead of the found file.
Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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entr_repo(..., 0) currently modifies the input to strip away
trailing slashes. This means that we some times need to copy the
input to keep the original.
Change it to unconditionally copy it into the used_path buffer so
we can safely use the input without having to copy it. Also store
a working copy in validated_path up-front before we start
resolving anything.
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Phil Hord <hordp@cisco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function was not gentle at all to the callers and died without giving
them a chance to deal with possible errors. Rename it to read_gitfile(),
and update all the callers.
As no existing caller needs a true "gently" variant, we do not bother
adding one at this point.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Rename the make_*_path functions so it's clearer what they do, in
particlar make clear what the differnce between make_absolute_path and
make_nonrelative_path is by renaming them real_path and absolute_path
respectively. make_relative_path has an understandable name and is
renamed to relative_path to maintain the name convention.
The function calls have been replaced 1-to-1 in their usage.
Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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git_mkstemp_mode and related functions do not require access to
specialized git machinery, unlike some other functions from
path.c (like set_shared_perm()). Move them to wrapper.c where
the wrapper xmkstemp_mode is defined.
This eliminates a dependency of wrapper.o on environment.o via
path.o. With typical linkers (e.g., gcc), that dependency makes
programs that use functions from wrapper.o and not environment.o
or path.o larger than they need to be.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* hv/submodule-find-ff-merge:
Implement automatic fast-forward merge for submodules
setup_revisions(): Allow walking history in a submodule
Teach ref iteration module about submodules
Conflicts:
submodule.c
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If $HOME is unset (as in some automated build situations),
currently
git config --path path.home "~"
git config --path --get path.home
segfaults. Error out with
Failed to expand user dir in: '~/'
instead.
Reported-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We will use this in a later patch to extend setup_revisions() to
load revisions directly from a submodule.
Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mm/mkstemps-mode-for-packfiles:
Use git_mkstemp_mode instead of plain mkstemp to create object files
git_mkstemps_mode: don't set errno to EINVAL on exit.
Use git_mkstemp_mode and xmkstemp_mode in odb_mkstemp, not chmod later.
git_mkstemp_mode, xmkstemp_mode: variants of gitmkstemps with mode argument.
Move gitmkstemps to path.c
Add a testcase for ACL with restrictive umask.
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* nd/root-git:
Add test for using Git at root of file system
Support working directory located at root
Move offset_1st_component() to path.c
init-db, rev-parse --git-dir: do not append redundant slash
make_absolute_path(): Do not append redundant slash
Conflicts:
setup.c
sha1_file.c
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* mm/mkstemps-mode-for-packfiles:
Use git_mkstemp_mode instead of plain mkstemp to create object files
git_mkstemps_mode: don't set errno to EINVAL on exit.
Use git_mkstemp_mode and xmkstemp_mode in odb_mkstemp, not chmod later.
git_mkstemp_mode, xmkstemp_mode: variants of gitmkstemps with mode argument.
Move gitmkstemps to path.c
Add a testcase for ACL with restrictive umask.
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When reaching the end of git_mkstemps_mode, at least one call to open()
has been done, and errno has been set accordingly. Setting errno is
therefore not necessary, and actually harmfull since callers can't
distinguish e.g. permanent failure from ENOENT, which can just mean that
we need to create the containing directory.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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gitmkstemps emulates the behavior of mkstemps, which is usually used
to create files in a shared directory like /tmp/, hence, it creates
files with permission 0600.
Add git_mkstemps_mode() that allows us to specify the desired mode, and
make git_mkstemps() a wrapper that always uses 0600 to call it. Later we
will use git_mkstemps_mode() when creating pack files.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function used to be only a compatibility function, but we're
going to extend it and actually use it, so make it part of Git.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/typo:
Typofixes outside documentation area
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The implementation is also lightly modified to use is_dir_sep()
instead of hardcoding '/'.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This patch converts the setenv() calls in path.c and setup.c. After
the call, git grep with a pager works again in bare repos.
It leaves the setenv(GIT_DIR_ENVIRONMENT, ...) calls in git.c alone, as
they respond to command line switches that emulate the effect of setting
the environment variable directly.
The remaining site in environment.c is in set_git_dir() and is left
alone, too, of course. Finally, builtin-init-db.c is left changed
because the repo is still being carefully constructed when the
environment variable is set.
This fixes git shortlog when run inside a git directory, which had been
broken by abe549e1.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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begining -> beginning
canonicalizations -> canonicalization
comand -> command
dewrapping -> unwrapping
dirtyness -> dirtiness
DISCLAMER -> DISCLAIMER
explicitely -> explicitly
feeded -> fed
impiled -> implied
madatory -> mandatory
mimick -> mimic
preceeding -> preceding
reqeuest -> request
substition -> substitution
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function takes two paths, an early part of abs is supposed to match
base; otherwise abs is not a path under base and the function returns the
full path of abs. The caller can easily confuse the implementation by
giving duplicated and needless slashes in these path arguments.
Credit for test script, motivation and initial patch goes to Thomas Rast.
A follow-up fix (squashed) is by Hannes.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* mm/config-pathname-tilde-expand:
Documentation: avoid xmlto input error
expand_user_path: expand ~ to $HOME, not to the actual homedir.
Expand ~ and ~user in core.excludesfile, commit.template
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In 395de250d (Expand ~ and ~user in core.excludesfile, commit.template),
we introduced the mechanism. But expanding ~ using getpw is not what
people overriding $HOME would usually expect. In particular, git looks
for the user's .gitconfig using $HOME, so it's better to be consistent.
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These config variables are parsed to substitute ~ and ~user with getpw
entries.
user_path() refactored into new function expand_user_path(), to allow
dynamically allocating the return buffer.
Original patch by Karl Chen, modified by Matthieu Moy, and further
amended by Junio C Hamano.
Signed-off-by: Karl Chen <quarl@quarl.org>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Eons ago HPA taught git-daemon how to protect itself from /../
attacks, which Junio brought back into service in d79374c7b58d
("daemon.c and path.enter_repo(): revamp path validation").
I did not carry this into git-http-backend as originally we relied
only upon PATH_TRANSLATED, and assumed the HTTP server had done
its access control checks to validate the resolved path was within
a directory permitting access from the remote client. This would
usually be sufficient to protect a server from requests for its
/etc/passwd file by http://host/smart/../etc/passwd sorts of URLs.
However in 917adc036086 Mark Lodato added GIT_PROJECT_ROOT as an
additional method of configuring the CGI. When this environment
variable is used the web server does not generate the final access
path and therefore may blindly pass through "/../etc/passwd"
in PATH_INFO under the assumption that "/../" might have special
meaning to the invoked CGI.
Instead of permitting these sorts of malformed path requests, we
now reject them back at the client, with an error message for the
server log. This matches git-daemon behavior.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Naturally, prep_temp_blob() did not care about filenames.
As a result, GIT_EXTERNAL_DIFF and textconv generated
filenames such as ".diff_XXXXXX".
This modifies prep_temp_blob() to generate user-friendly
filenames when creating temporary files.
Diffing "name.ext" now generates "XXXXXX_name.ext".
Signed-off-by: David Aguilar <davvid@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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adjust_shared_perm() first obtains the mode bits from lstat(2), expecting
to find what the result of applying user's umask is, and then tweaks it
as necessary. When the file to be adjusted is created with mkstemp(3),
however, the mode thusly obtained does not have anything to do with user's
umask, and we would need to start from 0444 in such a case and there is no
point running lstat(2) for such a path.
This introduces a new API set_shared_perm() to bypass the lstat(2) and
instead force setting the mode bits to the desired value directly.
adjust_shared_perm() becomes a thin wrapper to the function.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This fixes the behaviour of octal notation to how it is defined in the
documentation, while keeping the traditional "loosen only" semantics
intact for "group" and "everybody".
Three main points of this patch are:
- For an explicit octal notation, the internal shared_repository variable
is set to a negative value, so that we can tell "group" (which is to
"OR" in 0660) and 0660 (which is to "SET" to 0660);
- git-init did not set shared_repository variable early enough to affect
the initial creation of many files, notably copied templates and the
configuration. We set it very early when a command-line option
specifies a custom value.
- Many codepaths create files inside $GIT_DIR by various ways that all
involve mkstemp(), and then call move_temp_to_file() to rename it to
its final destination. We can add adjust_shared_perm() call here; for
the traditional "loosen-only", this would be a no-op for many codepaths
because the mode is already loose enough, but with the new behaviour it
makes a difference.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function strip_path_suffix() will try to strip a given suffix from
a given path. The suffix must start at a directory boundary (i.e. "core"
is not a path suffix of "libexec/git-core", but "git-core" is).
Arbitrary runs of directory separators ("slashes") are assumed identical.
Example:
strip_path_suffix("C:\\msysgit/\\libexec\\git-core",
"libexec///git-core", &prefix)
will set prefix to "C:\\msysgit" and return 0.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Acked-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This reverts commit b229d18a809c169314b7f0d048dc5a7632e8f916, at least
until we figure out how to work better with TopGit that points HEAD to
refs/top-bases/ hierarchy.
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* js/maint-1.6.0-path-normalize:
Remove unused normalize_absolute_path()
Test and fix normalize_path_copy()
Fix GIT_CEILING_DIRECTORIES on Windows
Move sanitary_path_copy() to path.c and rename it to normalize_path_copy()
Make test-path-utils more robust against incorrect use
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This function is now superseded by normalize_path_copy().
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This changes the test-path-utils utility to invoke normalize_path_copy()
instead of normalize_absolute_path() because the latter is about to be
removed.
The test cases in t0060 are adjusted in two regards:
- normalize_path_copy() more often leaves a trailing slash in the result.
This has no negative side effects because the new user of this function,
longest_ancester_length(), already accounts for this behavior.
- The function can fail.
The tests uncover a flaw in normalize_path_copy(): If there are
sufficiently many '..' path components so that the root is reached, such as
in "/d1/s1/../../d2", then the leading slash was lost. This manifested
itself that (assuming there is a repository at /tmp/foo)
$ git add /d1/../tmp/foo/some-file
reported 'pathspec is outside repository'. This is now fixed.
Moreover, the test case descriptions of t0060 now include the test data and
expected outcome.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Using git with GIT_CEILING_DIRECTORIES crashed on Windows due to a failed
assertion in normalize_absolute_path(): This function expects absolute
paths to start with a slash, while on Windows they can start with a drive
letter or a backslash.
This fixes it by using the alternative, normalize_path_copy() instead,
which can handle Windows-style paths just fine.
Secondly, the portability macro PATH_SEP is used instead of expecting
colons to be used as path list delimiter.
The test script t1504 is also changed to help MSYS's bash recognize some
program arguments as path list. (MSYS's bash must translate POSIX-style
path lists to Windows-style path lists, and the heuristic did not catch
some cases.)
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function and normalize_absolute_path() do almost the same thing. The
former already works on Windows, but the latter crashes.
In subsequent changes we will remove normalize_absolute_path(). Here we
make the replacement function reusable. On the way we rename it to reflect
that it does some path normalization. Apart from that this is only moving
around code.
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we are trying to determine whether a directory contains
a git repository, one of the tests we do is to check whether
HEAD is either a symlink or a symref into the "refs/"
hierarchy, or a detached HEAD.
We can tighten this a little more, though: a non-detached
HEAD should always point to a branch (since checking out
anything else should result in detachment), so it is safe to
check for "refs/heads/".
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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These were found using gcc 4.3.2-1ubuntu11 with the warning:
warning: format not a string literal and no format arguments
Incorporated suggestions from Brandon Casey <casey@nrlssc.navy.mil>.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* ar/maint-mksnpath:
Use git_pathdup instead of xstrdup(git_path(...))
git_pathdup: returns xstrdup-ed copy of the formatted path
Fix potentially dangerous use of git_path in ref.c
Add git_snpath: a .git path formatting routine with output buffer
Fix potentially dangerous uses of mkpath and git_path
Fix mkpath abuse in dwim_ref and dwim_log of sha1_name.c
Add mksnpath which allows you to specify the output buffer
Conflicts:
builtin-revert.c
rerere.c
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The comments for normalize_absolute_path explicitly claim
that the source and destination buffers may be the same
(though they may not otherwise overlap). Thus the call to
memcpy may involve copying overlapping data, and memmove
should be used instead.
This fixes a valgrind error in t1504.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The function's purpose is to replace git_path where the buffer of
formatted path may not be reused by subsequent calls of the function
or will be copied anyway.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is just vsnprintf's but additionally calls cleanup_path() on the
result. To be used as alternatives to mkpath() where the buffer for the
created path may not be reused by subsequent calls of the same formatting
function.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function had used make_absolute_path(); but this function dies if
the directory that contains the entry whose relative path was supplied in
the argument does not exist. This is a problem if the argument is, for
example, "../libexec/git-core", and that "../libexec" does not exist.
Since the resolution of symbolic links is not required for elements in
PATH, we can fall back to using make_nonrelative_path(), which simply
prepends $PWD to the path.
We have to move make_nonrelative_path() alongside make_absolute_path() in
abspath.c so that git-shell can be linked. See 5b8e6f85f.
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
GIT 1.5.6.3
git-am: Do not exit silently if committer is unset
t0004: fix timing bug
git-mailinfo: document the -n option
Fix backwards-incompatible handling of core.sharedRepository
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06cbe85 (Make core.sharedRepository more generic, 2008-04-16) broke the
traditional setting of core.sharedRepository to true, which was to make
the repository group writable: with umask 022, it would clear the
permission bits for 'other'. (umask 002 did not exhibit this behaviour
since pre-chmod() check in adjust_shared_perm() fails in that case.)
The call to adjust_shared_perm() should only loosen the permission.
If the user has umask like 022 or 002 that allow others to read, the
resulting files should be made readable and writable by group, without
restricting the readability by others.
This patch fixes the adjust_shared_perm() mode tweak based on Junio's
suggestion and adds the appropriate tests to t/t1301-shared-repo.sh.
Cc: Heikki Orsila <heikki.orsila@iki.fi>
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Ramsay Jones
Huynh Khoi Nguyen Nguyen
Jeff King
Phil Hord
Erik Faye-Lund
Junio C Hamano
Carlos Martín Nieto
Jonathan Nieder
Heiko Voigt
Matthieu Moy
Nguyễn Thái Ngọc Duy
René Scharfe
Shawn O. Pearce
David Aguilar
Johannes Schindelin
Johannes Sixt
Daniel Lowe
Alex Riesen
Johannes Sixt
Petr Baudis