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2010-12-22Use git_config_early() instead of git_config() during repo setupNguyễn Thái Ngọc Duy1-12/+35
When git_config() is called, either git_dir has already been set (by $GIT_DIR env or set_git_dir()), or it will default git_dir to ".git". git_config_early() gives setup functions more freedom because it does not require git_dir. Give it a config path, it will happily examine it. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-16Merge branch 'nd/extended-sha1-relpath'Junio C Hamano1-1/+1
* nd/extended-sha1-relpath: get_sha1: teach ":$n:<path>" the same relative path logic get_sha1: support relative path ":path" syntax Make prefix_path() return char* without const Conflicts: sha1_name.c
2010-12-12Merge branch 'jn/parse-options-extra'Junio C Hamano1-1/+3
* jn/parse-options-extra: update-index: migrate to parse-options API setup: save prefix (original cwd relative to toplevel) in startup_info parse-options: make resuming easier after PARSE_OPT_STOP_AT_NON_OPTION parse-options: allow git commands to invent new option types parse-options: never suppress arghelp if LITERAL_ARGHELP is set parse-options: do not infer PARSE_OPT_NOARG from option type parse-options: sanity check PARSE_OPT_NOARG flag parse-options: move NODASH sanity checks to parse_options_check parse-options: clearer reporting of API misuse parse-options: Don't call parse_options_check() so much
2010-12-07Make prefix_path() return char* without constNguyễn Thái Ngọc Duy1-1/+1
prefix_path() allocates new buffer. There's no reason for it to keep the buffer for itself and waste memory. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-12-07setup: save prefix (original cwd relative to toplevel) in startup_infoNguyễn Thái Ngọc Duy1-1/+3
Save the path from the original cwd to the cwd at the end of the setup procedure in the startup_info struct introduced in e37c1329 (2010-08-05). The value cannot vary from thread to thread anyway, since the cwd is global. So now in your builtin command, instead of passing prefix around, when you want to convert a user-supplied path to a cwd-relative path, you can use startup_info->prefix directly. Caveat: As with the return value from setup_git_directory_gently(), startup_info->prefix would be NULL when the original cwd is not a subdir of the toplevel. Longer term, this would allow the prefix to be reused when several noncooperating functions require access to the same repository (for example, when accessing configuration before running a builtin). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-10-18prefix_filename(): safely handle the case where pfx_len=0Thomas Rast1-2/+2
Current prefix_filename() is proofed against the case where the prefix 'pfx' is NULL or a 0-length string, _except on Windows_. Change the behaviour to work the same on both platforms, and only check pfx_len so that callers passing a NULL prefix with a nonzero pfx_len segfault early on both. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-31Merge branch 'jn/paginate-fix'Junio C Hamano1-1/+11
* jn/paginate-fix: t7006 (pager): add missing TTY prerequisites merge-file: run setup_git_directory_gently() sooner var: run setup_git_directory_gently() sooner ls-remote: run setup_git_directory_gently() sooner index-pack: run setup_git_directory_gently() sooner config: run setup_git_directory_gently() sooner bundle: run setup_git_directory_gently() sooner apply: run setup_git_directory_gently() sooner grep: run setup_git_directory_gently() sooner shortlog: run setup_git_directory_gently() sooner git wrapper: allow setup_git_directory_gently() be called earlier setup: remember whether repository was found git wrapper: introduce startup_info struct Conflicts: builtin/index-pack.c
2010-08-15Merge branch 'jn/maint-setup-fix' (early part) into jn/paginate-fixJunio C Hamano1-72/+99
* 'jn/maint-setup-fix' (early part): Revert "rehabilitate 'git index-pack' inside the object store" setup: do not forget working dir from subdir of gitdir t4111 (apply): refresh index before applying patches to it setup: split off get_device_or_die helper setup: split off a function to handle hitting ceiling in repo search setup: split off code to handle stumbling upon a repository setup: split off a function to checks working dir for .git file setup: split off $GIT_DIR-set case from setup_git_directory_gently tests: try git apply from subdir of toplevel t1501 (rev-parse): clarify
2010-08-11setup: remember whether repository was foundNguyễn Thái Ngọc Duy1-1/+11
As v1.7.2~16^2 (git --paginate: paginate external commands again, 2010-07-14) explains, builtins (like git config) that do not use RUN_SETUP are not finding GIT_DIR set correctly when it is time to launch the pager from run_builtin(). If they were to search for a repository sooner, then the outcome of such early repository accesses would be more predictable and reliable. The cmd_*() functions learn whether a repository was found through the *nongit_ok return value from setup_git_directory_gently(). If run_builtin() is to take care of the repository search itself, that datum needs to be retrievable from somewhere else. Use the startup_info struct for this. As a bonus, this information becomes available to functions such as git_config() which might want to avoid trying to access a repository when none is present. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-04setup: split off a function to handle ordinary .git directoriesNguyễn Thái Ngọc Duy1-18/+25
Finish the clean-up of setup_git_directory_gently() by splitting the last case of validation+setup (global variables, prefix, check_format, set_git_dir) into its own function. Now setup_git_git_directory_gently itself takes care of discovery only and the functions that pick up from there are nearby in the source file so they can be easily compared. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-04setup: do not forget working dir from subdir of gitdirNguyễn Thái Ngọc Duy1-0/+2
v1.6.1.3~4^2 (Fix gitdir detection when in subdir of gitdir, 2009-01-16) did not go far enough: when a git directory is an ancestor of the original working directory, not only should GIT_DIR be set to point to the .git directory, but the original working directory should be restored before carrying out the relevant command. This way, the effect of running a git command from a subdir of .git will be the same whether or not GIT_DIR is explicitly set. Noticed while investigating v1.6.0.3~1 (rehabilitate 'git index-pack' inside the object store, 2008-10-20). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-25setup: split off get_device_or_die helperJonathan Nieder1-11/+14
This does not eliminate any code, but it skims some off of the main loop of setup_git_directory_gently so that can be understood more easily. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-25setup: split off a function to handle hitting ceiling in repo searchJonathan Nieder1-9/+12
Perhaps some day, other similar conditions (hitting the mount point, hitting the root of the file system) will share this code. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-25setup: split off code to handle stumbling upon a repositoryJonathan Nieder1-13/+21
If a repository is found as an ancestor of the original working directory, it is assumed by default to be bare. Handle this case with its own function. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-25setup: split off a function to checks working dir for .git fileJonathan Nieder1-7/+13
The repository discovery procedure looks something like this: while (same filesystem) { check .git in working dir check . chdir(..) } Add a function for the first step to make the actual code look a bit closer to that pseudocode. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-25setup: split off $GIT_DIR-set case from setup_git_directory_gentlyJonathan Nieder1-32/+37
If $GIT_DIR is set, setup_git_directory_gently does not have to do any repository discovery at all. Split off a function for the validation it still does do, in the hope that this will make setup_git_directory_gently proper less daunting to read. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-20Merge branch 'maint'Junio C Hamano1-0/+2
* maint: t/README: clarify test_must_fail description Check size of path buffer before writing into it Conflicts: t/README
2010-07-20Check size of path buffer before writing into itGreg Brockman1-0/+2
This prevents a buffer overrun that could otherwise be triggered by creating a file called '.git' with contents gitdir: (something really long) Signed-off-by: Greg Brockman <gdb@mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-14Use dev_t for device id (st_dev) from stat in setup_git_directory_gently()Raja R Harinath1-1/+2
The original declaration was int, which seems to cause trouble on my machine. It causes spurious "filesystem boundary" errors when running the testsuite. The cause seems to be $ stat -c%d . 2147549952 which is too large for a 32-bit int type. Using the correct type, dev_t, solves the issue. (Because I'm paranoid and forgetful, I checked -- yes, Unix v7 had dev_t.) Other uses of st_dev seem to be reasonably safe. fill_stat_cache_info truncates it to an 'unsigned int', but that value seems to be used only to validate the cache, and only if USE_STDEV is defined. Signed-off-by: Raja R Harinath <harinath@hurrynot.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-06Merge branch 'maint'Junio C Hamano1-0/+6
* maint: setup: document prefix
2010-06-05setup: document prefixClemens Buchacher1-0/+6
Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-04Rename ONE_FILESYSTEM to DISCOVERY_ACROSS_FILESYSTEMJunio C Hamano1-2/+2
If a missing ONE_FILESYSTEM defaults to true, the only users who set this variable set it to false to tell git not to limit the discovery to one filesystem; there are too many negations in one sentence to make a simple panda brain dizzy. Use the variable GIT_DISCOVERY_ACROSS_FILESYSTEM that changes the behaviour from the default "limit to one filesystem" to "cross the boundary as I ask you to"; makes the semantics much more straight forward. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-04GIT_ONE_FILESYSTEM: flip the default to stop at filesystem boundariesJunio C Hamano1-2/+2
Regarding the new environment variable, Linus Torvalds <torvalds@linux-foundation.org> writes on Tue, 30 Mar 2010 in <alpine.LFD.2.00.1003301537150.3707@i5.linux-foundation.org>: I suspect that it is _very_ unusual to have a source repo that crosses multiple filesystems, and the original reason for this patch-series seems to me to be likely to be more common than that multi-fs case. So having the logic go the other way would seem to match the common case, no? The "crossing filesystem boundary" condition is checked by comparing st_dev field in the result from stat(2). This is slightly worrysome if non-POSIX ports return different values in the field even for directories in the same work tree extracted to the same "filesystem". Erik Faye-Lund confirms that in the msysgit port st_dev is 0, so this should be safe, as "even Windows is safe" ;-) This will affect those who use /.git to cram /etc and /home/me in the same repostiory, /home is mounted from non-root filesystem, and a git operation is done from inside /home/me/src. But that is such a corner case we don't want to give preference over helping people who will benefit from having this default so that they do not have to suffer from slow automounters. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28Add support for GIT_ONE_FILESYSTEMLars R. Damerow1-0/+25
This patch makes git pay attention to the GIT_ONE_FILESYSTEM environment variable. When that variable is set, git will stop searching for a GIT_DIR when it attempts to cross a filesystem boundary. When working in an environment with too many automount points to make maintaining a GIT_CEILING_DIRECTORIES list enjoyable, GIT_ONE_FILESYSTEM gives the option of turning all such attempts off with one setting. Signed-off-by: Lars R. Damerow <lars@pixar.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-28truncate cwd string before printing error messageLars R. Damerow1-1/+3
Without this truncation the error message printed only shows the cwd from the start of the search, not where it failed. Signed-off-by: Lars R. Damerow <lars@pixar.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-07Merge branch 'nd/root-git'Junio C Hamano1-5/+8
* 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
2010-02-16Merge branch 'jc/typo'Junio C Hamano1-1/+1
* jc/typo: Typofixes outside documentation area
2010-02-16Support working directory located at rootNguyễn Thái Ngọc Duy1-7/+10
Git should work regardless where the working directory is located, even at root. This patch fixes two places where it assumes working directory always have parent directory. In setup_git_directory_gently(), when Git goes up to root and finds .git there, it happily sets worktree to "" instead of "/". In prefix_path(), loosen the outside repo check a little bit. Usually when a path XXX is inside worktree /foo, it must be either "/foo", or "/foo/...". When worktree is simply "/", we can safely ignore the check: we have a slash at the beginning already. Not related to worktree, but also set gitdir correctly if a bare repo is placed (insanely?) at root. Thanks João Carlos Mendes Luís for pointing out this problem. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-06setenv(GIT_DIR) clean-upRené Scharfe1-2/+2
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>
2010-02-03Typofixes outside documentation areaJunio C Hamano1-1/+1
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>
2010-01-20Merge branch 'bk/fix-relative-gitdir-file'Junio C Hamano1-3/+19
* bk/fix-relative-gitdir-file: Handle relative paths in submodule .git files Test update-index for a gitlink to a .git file
2010-01-10Merge branch 'mm/diag-path-in-treeish'Junio C Hamano1-2/+13
* mm/diag-path-in-treeish: Detailed diagnosis when parsing an object name fails.
2010-01-09Handle relative paths in submodule .git filesBrad King1-3/+19
Commit 842abf0 (Teach resolve_gitlink_ref() about the .git file, 2008-02-20) taught resolve_gitlink_ref() to call read_gitfile_gently() to resolve .git files. In this commit teach read_gitfile_gently() to interpret a relative path in a .git file with respect to the file location. This change allows update-index to recognize a submodule that uses a relative path in its .git file. It previously failed because the relative path was wrongly interpreted with respect to the superproject directory. Signed-off-by: Brad King <brad.king@kitware.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-16Merge branch 'maint' to sync with 1.6.5.7Junio C Hamano1-2/+5
* maint: Git 1.6.5.7 worktree: don't segfault with an absolute pathspec without a work tree ignore unknown color configuration help.autocorrect: do not run a command if the command given is junk Illustrate "filter" attribute with an example
2009-12-16worktree: don't segfault with an absolute pathspec without a work treeJunio C Hamano1-2/+5
If a command is run with an absolute path as a pathspec inside a bare repository, e.g. "rev-list HEAD -- /home", the code tried to run strlen() on NULL, which is the result of get_git_work_tree(), and segfaulted. It should just fail instead. Currently the function returns NULL even inside .git/ in a repository with a work tree, but that is a separate issue. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-12-07Detailed diagnosis when parsing an object name fails.Matthieu Moy1-2/+13
The previous error message was the same in many situations (unknown revision or path not in the working tree). We try to help the user as much as possible to understand the error, especially with the sha1:filename notation. In this case, we say whether the sha1 or the filename is problematic, and diagnose the confusion between relative-to-root and relative-to-$PWD confusion precisely. The 7 new error messages are tested. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-18check_filename(): make verify_filename() callable without dyingJunio C Hamano1-18/+20
Make it possible to invole the logic of verify_filename() to make sure the pathname arguments are unambiguous without actually dying. The caller may want to do something different.
2009-09-18Test for WIN32 instead of __MINGW32_Frank Li1-1/+1
The code which is conditional on MinGW32 is actually conditional on Windows. Use the WIN32 symbol, which is defined by the MINGW32 and MSVC environments, but not by Cygwin. Define SNPRINTF_SIZE_CORR=1 for MSVC too, as its vsnprintf function does not add NUL at the end of the buffer if the result fits the buffer size exactly. Signed-off-by: Frank Li <lznuaa@gmail.com> Signed-off-by: Marius Storm-Olsen <mstormo@gmail.com> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27Use die_errno() instead of die() when checking syscallsThomas Rast1-5/+5
Lots of die() calls did not actually report the kind of error, which can leave the user confused as to the real problem. Use die_errno() where we check a system/library call that sets errno on failure, or one of the following that wrap such calls: Function Passes on error from -------- -------------------- odb_pack_keep open read_ancestry fopen read_in_full xread strbuf_read xread strbuf_read_file open or strbuf_read_file strbuf_readlink readlink write_in_full xwrite Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27Convert existing die(..., strerror(errno)) to die_errno()Thomas Rast1-4/+4
Change calls to die(..., strerror(errno)) to use the new die_errno(). In the process, also make slight style adjustments: at least state _something_ about the function that failed (instead of just printing the pathname), and put paths in single quotes. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-27"core.sharedrepository = 0mode" should set, not loosenJunio C Hamano1-2/+2
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>
2009-02-10Merge branch 'js/maint-1.6.0-path-normalize'Junio C Hamano1-87/+1
* 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
2009-02-07Move sanitary_path_copy() to path.c and rename it to normalize_path_copy()Johannes Sixt1-87/+1
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>
2009-01-21Merge branch 'sg/maint-gitdir-in-subdir'Junio C Hamano1-1/+5
* sg/maint-gitdir-in-subdir: Fix gitdir detection when in subdir of gitdir
2009-01-17Fix gitdir detection when in subdir of gitdirSZEDER Gábor1-1/+5
If the current working directory is a subdirectory of the gitdir (e.g. <repo>/.git/refs/), then setup_git_directory_gently() will climb its parent directories until it finds itself in a gitdir. However, no matter how many parent directories it climbs, it sets 'GIT_DIR_ENVIRONMENT' to ".", which is obviously wrong. This behaviour affected at least 'git rev-parse --git-dir' and hence caused some errors in bash completion (e.g. customized command prompt when on a detached head and completion of refs). To fix this, we set the absolute path of the found gitdir instead. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-21Always show which directory is not a git repositoryRichard Hartmann1-1/+1
Unify all fatal: Not a git repository error messages so they include path information. Signed-off-by: Richard Hartmann <richih@net.in.tum.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-04Make chdir failures visibleAlex Riesen1-1/+2
Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-06make prefix_path() never return NULLDmitry Potapov1-7/+2
There are 9 places where prefix_path is called, and only in one of them the returned pointer was checked to be non-zero and only to call exit(128) as it is usually done by die(). In other 8 places, the returned value was not checked and it caused SIGSEGV when a path outside of the working tree was used. For instance, running git update-index --add /some/path/outside caused SIGSEGV. This patch changes prefix_path() to die if the path is outside of the repository, so it never returns NULL. Signed-off-by: Dmitry Potapov <dpotapov@gmail.com> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-08-30setup_git_directory(): fix move to worktree toplevel directoryNguyễn Thái Ngọc Duy1-0/+2
When setup_git_directory() returns successfully, it is supposed to move current working directory to worktree toplevel directory. However, the code recomputing prefix inside setup_git_directory() has to move cwd back to original working directory, in order to get new prefix. After that, it should move cwd back to worktree toplevel directory as expected. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-07Merge branch 'dr/ceiling'Junio C Hamano1-15/+16
* dr/ceiling: Eliminate an unnecessary chdir("..") Add support for GIT_CEILING_DIRECTORIES Fold test-absolute-path into test-path-utils Implement normalize_absolute_path Conflicts: cache.h setup.c
2008-07-02Merge branch 'j6t/mingw'Junio C Hamano1-20/+39
* j6t/mingw: (38 commits) compat/pread.c: Add a forward declaration to fix a warning Windows: Fix ntohl() related warnings about printf formatting Windows: TMP and TEMP environment variables specify a temporary directory. Windows: Make 'git help -a' work. Windows: Work around an oddity when a pipe with no reader is written to. Windows: Make the pager work. When installing, be prepared that template_dir may be relative. Windows: Use a relative default template_dir and ETC_GITCONFIG Windows: Compute the fallback for exec_path from the program invocation. Turn builtin_exec_path into a function. Windows: Use a customized struct stat that also has the st_blocks member. Windows: Add a custom implementation for utime(). Windows: Add a new lstat and fstat implementation based on Win32 API. Windows: Implement a custom spawnve(). Windows: Implement wrappers for gethostbyname(), socket(), and connect(). Windows: Work around incompatible sort and find. Windows: Implement asynchronous functions as threads. Windows: Disambiguate DOS style paths from SSH URLs. Windows: A rudimentary poll() emulation. Windows: Implement start_command(). ...
2008-06-23Windows: Treat Windows style path names.Johannes Sixt1-14/+36
GIT's guts work with a forward slash as a path separators. We do not change that. Rather we make sure that only "normalized" paths enter the depths of the machinery. We have to translate backslashes to forward slashes in the prefix and in command line arguments. Fortunately, all of them are passed through functions in setup.c. A macro has_dos_drive_path() is defined that checks whether a path begins with a drive letter+colon combination. This predicate is always false on Unix. Another macro is_dir_sep() abstracts that a backslash is also a directory separator on Windows. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-23setup.c: Prepare for Windows directory separators.Johannes Sixt1-8/+5
This turns two switch/case statements into an if-else-if cascade because we later do not want to have case '/': #ifdef __MINGW32__ case '\\': #endif but use a predicate is_dir_sep(foo) in order to check for the directory separator. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at>
2008-06-19Make git_dir a path relative to work_tree in setup_work_tree()Linus Torvalds1-1/+2
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>
2008-05-23Eliminate an unnecessary chdir("..")David Reiss1-1/+1
In the case where setup_git_directory_gently fails, avoid the last chdir("..") by moving it after the ceil_offset check. Signed-off-by: David Reiss <dreiss@facebook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-23Add support for GIT_CEILING_DIRECTORIESDavid Reiss1-11/+13
Make git recognize a new environment variable that prevents it from chdir'ing up into specified directories when looking for a GIT_DIR. Useful for avoiding slow network directories. For example, I use git in an environment where homedirs are automounted and "ls /home/nonexistent" takes about 9 seconds. Setting GIT_CEILING_DIRS="/home" allows "git help -a" (for bash completion) and "git symbolic-ref" (for my shell prompt) to run in a reasonable time. Signed-off-by: David Reiss <dreiss@facebook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-14Provide git_config with a callback-data parameterJohannes Schindelin1-2/+2
git_config() only had a function parameter, but no callback data parameter. This assumes that all callback functions only modify global variables. With this patch, every callback gets a void * parameter, and it is hoped that this will help the libification effort. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-05Merge branch 'lh/git-file'Junio C Hamano1-0/+47
* lh/git-file: Teach GIT-VERSION-GEN about the .git file Teach git-submodule.sh about the .git file Teach resolve_gitlink_ref() about the .git file Add platform-independent .git "symlink"
2008-04-16Make core.sharedRepository more genericHeikki Orsila1-14/+46
git init --shared=0xxx, where '0xxx' is an octal number, will create a repository with file modes set to '0xxx'. Users with a safe umask value (0077) can use this option to force file modes. For example, '0640' is a group-readable but not group-writable regardless of user's umask value. Values compatible with old Git versions are written as they were before, for compatibility reasons. That is, "1" for "group" and "2" for "everybody". "git config core.sharedRepository 0xxx" is also handled. Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-09Add platform-independent .git "symlink"Lars Hjemli1-0/+47
This patch allows .git to be a regular textfile containing the path of the real git directory (prefixed with "gitdir: "), which can be useful on platforms lacking support for real symlinks. Signed-off-by: Lars Hjemli <hjemli@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-26Always set *nongit_ok in setup_git_directory_gently()SZEDER Gábor1-0/+8
setup_git_directory_gently() only modified the value of its *nongit_ok argument if we were not in a git repository. Now it will always set it to 0 when we are inside a repository. Also remove now unnecessary initializations in the callers of this function. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-07get_pathspec(): die when an out-of-tree path is givenJunio C Hamano1-0/+2
An earlier commit d089ebaa (setup: sanitize absolute and funny paths) made get_pathspec() aware of absolute paths, but with a botched interface that forced the callers to count the resulting pathspecs in order to detect an error of giving a path that is outside the work tree. This fixes it, by dying inside the function. We had ls-tree test that relied on a misfeature in the original implementation of its pathspec handling. Leading slashes were silently removed from them. However we allow giving absolute pathnames (people want to cut and paste from elsewhere) that are inside work tree these days, so a pathspec that begin with slash _should_ be treated as a full path. The test is adjusted to match the updated rule for get_pathspec(). Earlier I mistook three tests given by Robin that they should succeed, but these are attempts to add path outside work tree, which should fail loudly. These tests also have been fixed. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-22Avoid unnecessary "if-before-free" tests.Jim Meyering1-2/+1
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>
2008-02-20prefix_path: use is_absolute_path() instead of *orig == '/'Johannes Sixt1-2/+2
Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-20Merge branch 'jc/setup'Junio C Hamano1-42/+116
* jc/setup: builtin-mv: minimum fix to avoid losing files git-add: adjust to the get_pathspec() changes. Make blame accept absolute paths setup: sanitize absolute and funny paths in get_pathspec()
2008-02-11setup.c: guard config parser from value=NULLJunio C Hamano1-0/+2
core.worktree expects a string value Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-05setup: sanitize absolute and funny paths in get_pathspec()Junio C Hamano1-42/+116
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>
2008-01-03Fix grammar nits in documentation and in code comments.Jim Meyering1-1/+1
Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-09Remove repo version check from setup_git_directoryNguyễn Thái Ngọc Duy1-1/+0
setup_git_directory_gently has done the check already. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-05Merge branch 'maint'Junio C Hamano1-7/+29
* maint: git-am -i: report rewritten title git grep shows the same hit repeatedly for unmerged paths Do check_repository_format() early (re-fix) Do check_repository_format() early Add missing inside_work_tree setting in setup_git_directory_gently
2007-12-05Do check_repository_format() early (re-fix)Nguyễn Thái Ngọc Duy1-12/+26
This pushes check_repository_format() (actually _gently() version) to setup_git_directory_gently() in order to prevent from using unsupported repositories. New setup_git_directory_gently()'s behaviour is stop searching for a valid gitdir and return as if there is no gitdir if a unsupported repository is found. Warning will be thrown in these cases. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-30Do check_repository_format() earlyNguyễn Thái Ngọc Duy1-3/+10
Repository version check is only performed when setup_git_directory() is called. This makes sure setup_git_directory_gently() does the check too. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-26Use is_absolute_path() in diff-lib.c, lockfile.c, setup.c, trace.cSteffen Prohaska1-1/+1
Using the helper function to test for absolute paths makes porting easier. Signed-off-by: Steffen Prohaska <prohaska@zib.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-09builtin-blame: set up the work_tree before the first file accessJohannes Schindelin1-2/+8
We check in cmd_blame() if the specified path is there, but we failed to set up the working tree before that. While at it, make setup_work_tree() just return if it was run before. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-08Style: place opening brace of a function definition at column 1Junio C Hamano1-1/+2
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-05Refactor working tree setupMike Hommey1-0/+9
Create a setup_work_tree() that can be used from any command requiring a working tree conditionally. Signed-off-by: Mike Hommey <mh@glandium.org> Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-03Add missing inside_work_tree setting in setup_git_directory_gentlyNguyễn Thái Ngọc Duy1-0/+1
When both GIT_DIR and GIT_WORK_TREE are set, and setup_git_directory_gently() changes the current working directory accordingly, it should also set inside_work_tree = 1. Without this, work_tree handling code in setup_git_directory() will be activated. If you stay in root work tree (no prefix), it does not harm. It does if you work from a subdirectory though. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-10-16Fix setup_git_directory_gently() with relative GIT_DIR & GIT_WORK_TREEJohannes Schindelin1-1/+12
There are a few programs, such as config and diff, which allow running without a git repository. Therefore, they have to call setup_git_directory_gently(). However, when GIT_DIR and GIT_WORK_TREE were set, and the current directory was a subdirectory of the work tree, setup_git_directory_gently() would return a bogus NULL prefix. This patch fixes that. Noticed by REPLeffect on IRC. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2007-08-10Reinstate the old behaviour when GIT_DIR is set and GIT_WORK_TREE is unsetJohannes Schindelin1-42/+10
The old behaviour was to unilaterally default to the cwd is the work tree when GIT_DIR was set, but GIT_WORK_TREE wasn't, no matter if we are inside the GIT_DIR, or if GIT_DIR is actually something like ../../../.git. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-06Merge branch 'maint'Junio C Hamano1-1/+1
* maint: apply: remove directory that becomes empty by renaming the last file away setup.c:verify_non_filename(): don't die unnecessarily while disambiguating
2007-08-06setup.c:verify_non_filename(): don't die unnecessarily while disambiguatingJunio C Hamano1-1/+1
If you have a working tree _file_ "foo", attempt to refer to a branch "foo/bar" without -- to disambiguate, like this: $ git log foo/bar tried to make sure that foo/bar cannot be naming a working tree file "foo/bar" (in which case we would say "which one do you want? A rev or a working tree file? clarify with -- please"). We run lstat("foo/bar") to check that. If it does not succeed, there is no ambiguity. That is good. But we also checked the error status for the lstat() and expected it to fail with ENOENT. In this particular case, however, it fails with ENOTDIR. That should be treated as "expected error" as well. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-08-02Fix work-tree related breakagesJunio C Hamano1-8/+14
In set_work_tree(), variable rel needs to be reinitialized to NULL on every call (it should not be static). Make sure the incoming dir variable is not too long before copying to the temporary buffer, and make sure chdir to the resulting directory succeeds. This was spotted and fixed by Alex and Johannes in a handful patch exchanges. Here is the final version. Signed-off-by: Junio C Hamano <gitster@pobox.com> Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
2007-08-01Clean up work-tree handlingJohannes Schindelin1-152/+127
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>
2007-07-30white space fixes in setup.cJohannes Schindelin1-3/+3
Some lines were not indented by tabs but by spaces. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-11Fix core.sharedRepository = 2Johannes Schindelin1-0/+4
For compatibility reasons, "git init --shared=all" does not write "all" into the config, but a number. In the shared setup, you really have to support even older clients on the _same_ repository. But git_config_perm() did not pick up on it. Also, "git update-server-info" failed to pick up on the shared permissions. This patch fixes both issues, and adds a test to prove it. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Tested-by: martin f krafft <madduck@madduck.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-04Do not check if getcwd() result begins with a slash.Junio C Hamano1-4/+4
In user space, and for getcwd(), the check to see if the resulting path begins with a '/' does not make sense. This is merely a mistake by Linus who is so used to code for the kernel, where a d_path() return value pathname can be either a real path, or something like "pipe:[8003]", and the difference is the '/' at the beginning. Pointed out by Dscho, Matthias Lederhofer and clarified by Linus. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-01Merge branch 'ei/worktree+filter'Junio C Hamano1-56/+162
* ei/worktree+filter: filter-branch: always export GIT_DIR if it is set setup_git_directory: fix segfault if repository is found in cwd test GIT_WORK_TREE extend rev-parse test for --is-inside-work-tree Use new semantics of is_bare/inside_git_dir/inside_work_tree introduce GIT_WORK_TREE to specify the work tree test git rev-parse rev-parse: introduce --is-bare-repository rev-parse: document --is-inside-git-dir
2007-06-07War on whitespaceJunio C Hamano1-2/+2
This uses "git-apply --whitespace=strip" to fix whitespace errors that have crept in to our source files over time. There are a few files that need to have trailing whitespaces (most notably, test vectors). The results still passes the test, and build result in Documentation/ area is unchanged. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-06setup_git_directory: fix segfault if repository is found in cwdMatthias Lederhofer1-0/+5
Additionally there was a similar part calling setenv and getenv in the same way which missed a check if getenv succeeded. Signed-off-by: Matthias Lederhofer <matled@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-06Use new semantics of is_bare/inside_git_dir/inside_work_treeMatthias Lederhofer1-1/+1
Up to now to check for a working tree this was used: !is_bare && !inside_git_dir (the check for bare is redundant because is_inside_git_dir returned already 1 for bare repositories). Now the check is: inside_work_tree && !inside_git_dir Signed-off-by: Matthias Lederhofer <matled@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-06introduce GIT_WORK_TREE to specify the work treeMatthias Lederhofer1-55/+156
setup_gdg is used as abbreviation for setup_git_directory_gently. The work tree can be specified using the environment variable GIT_WORK_TREE and the config option core.worktree (the environment variable has precendence over the config option). Additionally there is a command line option --work-tree which sets the environment variable. setup_gdg does the following now: GIT_DIR unspecified repository in .git directory parent directory of the .git directory is used as work tree, GIT_WORK_TREE is ignored GIT_DIR unspecified repository in cwd GIT_DIR is set to cwd see the cases with GIT_DIR specified what happens next and also see the note below GIT_DIR specified GIT_WORK_TREE/core.worktree unspecified cwd is used as work tree GIT_DIR specified GIT_WORK_TREE/core.worktree specified the specified work tree is used Note on the case where GIT_DIR is unspecified and repository is in cwd: GIT_WORK_TREE is used but is_inside_git_dir is always true. I did it this way because setup_gdg might be called multiple times (e.g. when doing alias expansion) and in successive calls setup_gdg should do the same thing every time. Meaning of is_bare/is_inside_work_tree/is_inside_git_dir: (1) is_bare_repository A repository is bare if core.bare is true or core.bare is unspecified and the name suggests it is bare (directory not named .git). The bare option disables a few protective checks which are useful with a working tree. Currently this changes if a repository is bare: updates of HEAD are allowed git gc packs the refs the reflog is disabled by default (2) is_inside_work_tree True if the cwd is inside the associated working tree (if there is one), false otherwise. (3) is_inside_git_dir True if the cwd is inside the git directory, false otherwise. Before this patch is_inside_git_dir was always true for bare repositories. When setup_gdg finds a repository git_config(git_default_config) is always called. This ensure that is_bare_repository makes use of core.bare and does not guess even though core.bare is specified. inside_work_tree and inside_git_dir are set if setup_gdg finds a repository. The is_inside_work_tree and is_inside_git_dir functions will die if they are called before a successful call to setup_gdg. Signed-off-by: Matthias Lederhofer <matled@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-03-10Merge branch 'maint'Junio C Hamano1-1/+1
* maint: git.el: Retrieve commit log information from .dotest directory. git.el: Avoid appending a signoff line that is already present. setup_git_directory_gently: fix off-by-one error user-manual: install user manual stylesheet with other web documents user-manual: fix rendering of history diagrams user-manual: fix missing colon in git-show example user-manual: fix inconsistent use of pull and merge user-manual: fix inconsistent example glossary: fix overoptimistic automatic linking of defined terms Documentation: s/seperator/separator/ Adjust reflog filemode in shared repository
2007-03-10setup_git_directory_gently: fix off-by-one errorMatthias Lederhofer1-1/+1
don't tell getcwd that the buffer has one spare byte for an extra / Signed-off-by: Matthias Lederhofer <matled@gmx.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-02-20Mechanical conversion to use prefixcmp()Junio C Hamano1-1/+1
This mechanically converts strncmp() to use prefixcmp(), but only when the parameters match specific patterns, so that they can be verified easily. Leftover from this will be fixed in a separate step, including idiotic conversions like if (!strncmp("foo", arg, 3)) => if (!(-prefixcmp(arg, "foo"))) This was done by using this script in px.perl #!/usr/bin/perl -i.bak -p if (/strncmp\(([^,]+), "([^\\"]*)", (\d+)\)/ && (length($2) == $3)) { s|strncmp\(([^,]+), "([^\\"]*)", (\d+)\)|prefixcmp($1, "$2")|; } if (/strncmp\("([^\\"]*)", ([^,]+), (\d+)\)/ && (length($1) == $3)) { s|strncmp\("([^\\"]*)", ([^,]+), (\d+)\)|(-prefixcmp($2, "$1"))|; } and running: $ git grep -l strncmp -- '*.c' | xargs perl px.perl Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-01-20Do not verify filenames in a bare repositoryJohannes Schindelin1-0/+26
For example, it makes no sense to check the presence of a file named "HEAD" when calling "git log HEAD" in a bare repository. Noticed by Han-Wen Nienhuys. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
2007-01-08Detached HEAD (experimental)Junio C Hamano1-2/+3
This allows "git checkout v1.4.3" to dissociate the HEAD of repository from any branch. After this point, "git branch" starts reporting that you are not on any branch. You can go back to an existing branch by saying "git checkout master", for example. This is still experimental. While I think it makes sense to allow commits on top of detached HEAD, it is rather dangerous unless you are careful in the current form. Next "git checkout master" will obviously lose what you have done, so we might want to require "git checkout -f" out of a detached HEAD if we find that the HEAD commit is not an ancestor of any other branches. There is no such safety valve implemented right now. On the other hand, the reason the user did not start the ad-hoc work on a new branch with "git checkout -b" was probably because the work was of a throw-away nature, so the convenience of not having that safety valve might be even better. The user, after accumulating some commits on top of a detached HEAD, can always create a new branch with "git checkout -b" not to lose useful work done while the HEAD was detached. We'll see. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-30Automatically detect a bare git repository.Shawn O. Pearce1-34/+39
Many users find it unfriendly that they can create a bare git repository easily with `git clone --bare` but are then unable to run simple commands like `git log` once they cd into that newly created bare repository. This occurs because we do not check to see if the current working directory is a git repository. Instead of failing out with "fatal: Not a git repository" we should try to automatically detect if the current working directory is a bare repository and use that for GIT_DIR, and fail out only if that doesn't appear to be true. We test the current working directory only after we have tried searching up the directory tree. This is to retain backwards compatibility with our previous behavior on the off chance that a user has a 'refs' and 'objects' subdirectories and a 'HEAD' file that looks like a symref, all stored within a repository's associated working directory. This change also consolidates the validation logic between the case of GIT_DIR being supplied and GIT_DIR not being supplied, cleaning up the code. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-30Move deny_non_fast_forwards handling completely into receive-pack.Shawn Pearce1-2/+0
The 'receive.denynonfastforwards' option has nothing to do with the repository format version. Since receive-pack already uses git_config to initialize itself before executing any updates we can use the normal configuration strategy and isolate the receive specific variables away from the core variables. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-09-20add receive.denyNonFastforwards config variableJohannes Schindelin1-0/+2
If receive.denyNonFastforwards is set to true, git-receive-pack will deny non fast-forwards, i.e. forced updates. Most notably, a push to a repository which has that flag set will fail. As a first user, 'git-init-db --shared' sets this flag, since in a shared setup, you are most unlikely to want forced pushes to succeed. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-04Fix crash when GIT_DIR is invalidJohannes Schindelin1-1/+1
We used to test if a pointer was NULL, and if it was, try to access it. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-07-30setup_git_directory_gently: do not barf when GIT_DIR is given.Matthias Lederhofer1-0/+4
Earlier we barfed when GIT_DIR environment variable points at a directory yet to be created, which made it impossible to use configuration mechanism in "git-init-db". Signed-off-by: Matthias Lederhofer <matled@gmx.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-06-10shared repository: optionally allow reading to "others".Junio C Hamano1-1/+16
This enhances core.sharedrepository to have additionally specify that read and exec permissions to be given to others as well. It is useful when serving a repository via gitweb and git-daemon that runs as a user outside the project group. The configuration item can take the following values: [core] sharedrepository ; the same as "group" sharedrepository = true ; ditto sharedrepository = 1 ; ditto sharedrepository = group ; allow rwx to group sharedrepository = all ; allow rwx to group, allow rx to other sharedrepository = umask ; not shared - use umask It also extends "git init-db" to take "--shared=all" and friends from the command line. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-26revision parsing: make "rev -- paths" checks stronger.Junio C Hamano1-2/+22
If you don't have a "--" marker, then: - all of the arguments we are going to assume are pathspecs must exist in the working tree. - none of the arguments we parsed as revisions could be interpreted as a filename. so that there really isn't any possibility of confusion in case somebody does have a revision that looks like a pathname too. The former rule has been in effect; this implements the latter. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-26Fix filename verification when in a subdirectoryLinus Torvalds1-0/+23
When we are in a subdirectory of a git archive, we need to take the prefix of that subdirectory into accoung when we verify filename arguments. Noted by Matthias Lederhofer This also uses the improved error reporting for all the other git commands that use the revision parsing interfaces, not just git-rev-parse. Also, it makes the error reporting for mixed filenames and argument flags clearer (you cannot put flags after the start of the pathname list). [jc: with fix to a trivial typo noticed by Timo Hirvonen] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-24Introduce core.sharedrepositoryJohannes Schindelin1-0/+2
If the config variable 'core.sharedrepository' is set, the directories $GIT_DIR/objects/ $GIT_DIR/objects/?? $GIT_DIR/objects/pack $GIT_DIR/refs $GIT_DIR/refs/heads $GIT_DIR/refs/heads/tags are set group writable (and g+s, since the git group may be not the primary group of all users). Since all files are written as lock files first, and then moved to their destination, they do not have to be group writable. Indeed, if this leads to problems you found a bug. Note that -- as in my first attempt -- the config variable is set in the function which checks the repository format. If this were done in git_default_config instead, a lot of programs would need to be modified to call git_config(git_default_config) first. [jc: git variables should be in environment.c unless there is a compelling reason to do otherwise.] Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-30Merge branch 'jc/subdir'Junio C Hamano1-3/+25
2005-11-30Do not attempt to access literal dirname "GIT_OBJECT_DIRECTORY".Tommi Virtanen1-1/+1
Dereference the environment variable before using it. Signed-off-by: Tommi Virtanen <tv@inoi.fi> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-28working from subdirectory: preparationJunio C Hamano1-3/+25
- prefix_filename() is like prefix_path() but can be used to name any file on the filesystem, not the files that might go into the index file. - setup_git_directory_gently() tries to find the GIT_DIR, but does not die() if called outside a git repository. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-27setup_git_directory(): check repository format version.Junio C Hamano1-0/+1
After figuring out the GIT_DIR location, make sure the repository is of the right vintage, by calling check_repository_format(). . Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-27Repository format version check.Junio C Hamano1-0/+16
This adds the repository format version code, first done by Martin Atukunda. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-25setup_git_directory: make sure GIT_DIR is a valid repository.Junio C Hamano1-5/+37
setup_git_directory() always trusted what the user told where GIT_DIR was, and assumed that is a valid .git/ directory. This commit changes it to at least do the same level validation as is_toplevel_directory() does -- has refs/, has objects/ unless GIT_OBJECT_DIRECTORY is set, and has valid HEAD symlink or symref. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-10-01Add git-symbolic-refJunio C Hamano1-7/+9
This adds the counterpart of git-update-ref that lets you read and create "symbolic refs". By default it uses a symbolic link to represent ".git/HEAD -> refs/heads/master", but it can be compiled to use the textfile symbolic ref. The places that did 'readlink .git/HEAD' and 'ln -s refs/heads/blah .git/HEAD' have been converted to use new git-symbolic-ref command, so that they can deal with either implementation. Signed-off-by: Junio C Hamano <junio@twinsun.com>
2005-09-24Diff clean-up.Junio C Hamano1-5/+5
This is a long overdue clean-up to the code for parsing and passing diff options. It also tightens some constness issues. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-09Retire support for old environment variables.Junio C Hamano1-2/+2
We have deprecated the old environment variable names for quite a while and now it's time to remove them. Gone are: SHA1_FILE_DIRECTORIES AUTHOR_DATE AUTHOR_EMAIL AUTHOR_NAME COMMIT_AUTHOR_EMAIL COMMIT_AUTHOR_NAME SHA1_FILE_DIRECTORY Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-27[PATCH] Make .git directory validation code test HEADLinus Torvalds1-11/+20
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>
2005-08-17[PATCH] Export relative path handling "prefix_path()" functionLinus Torvalds1-1/+1
Not all programs necessarily have a pathspec array of pathnames, some of them (like git-update-cache) want to do things one file at a time. So export the single-path interface too. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-16[PATCH] Improve handling of "." and ".." in git-diff-*Linus Torvalds1-42/+51
This fixes up usage of ".." (without an ending slash) and "." (with or without the ending slash) in the git diff family. It also fixes pathspec matching for the case of an empty pathspec, since a "." in the top-level directory (or enough ".." under subdirectories) will result in an empty pathspec. We used to not match it against anything, but it should in fact match everything. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-16[PATCH] Fix test failure due to overly strict .git directory testsLinus Torvalds1-3/+2
We may not actually have a valid HEAD at all times, so relax the validity tests for a .git subdirectory accordingly. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-16[PATCH] Make "git diff" work inside relative subdirectoriesLinus Torvalds1-0/+110
We always show the diff as an absolute path, but pathnames to diff are taken relative to the current working directory (and if no pathnames are given, the default ends up being all of the current working directory). Note that "../xyz" also works, so you can do cd linux/drivers/char git diff ../block and it will generate a diff of the linux/drivers/block changes. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>