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* Merge branch 'jn/paginate-fix'Junio C Hamano2010-08-311-1/+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
| * Merge branch 'jn/maint-setup-fix' (early part) into jn/paginate-fixJunio C Hamano2010-08-151-72/+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
| * | setup: remember whether repository was foundNguyễn Thái Ngọc Duy2010-08-111-1/+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>
* | | setup: split off a function to handle ordinary .git directoriesNguyễn Thái Ngọc Duy2010-08-041-18/+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>
* | setup: do not forget working dir from subdir of gitdirNguyễn Thái Ngọc Duy2010-08-041-0/+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>
* | setup: split off get_device_or_die helperJonathan Nieder2010-07-251-11/+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>
* | setup: split off a function to handle hitting ceiling in repo searchJonathan Nieder2010-07-251-9/+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>
* | setup: split off code to handle stumbling upon a repositoryJonathan Nieder2010-07-251-13/+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>
* | setup: split off a function to checks working dir for .git fileJonathan Nieder2010-07-251-7/+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>
* | setup: split off $GIT_DIR-set case from setup_git_directory_gentlyJonathan Nieder2010-07-251-32/+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>
* Merge branch 'maint'Junio C Hamano2010-07-201-0/+2
|\ | | | | | | | | | | | | | | | | * maint: t/README: clarify test_must_fail description Check size of path buffer before writing into it Conflicts: t/README
| * Check size of path buffer before writing into itGreg Brockman2010-07-201-0/+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>
* | Use dev_t for device id (st_dev) from stat in setup_git_directory_gently()Raja R Harinath2010-07-141-1/+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>
* | Merge branch 'maint'Junio C Hamano2010-06-061-0/+6
|\ \ | |/ | | | | | | * maint: setup: document prefix
| * setup: document prefixClemens Buchacher2010-06-051-0/+6
| | | | | | | | | | Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Rename ONE_FILESYSTEM to DISCOVERY_ACROSS_FILESYSTEMJunio C Hamano2010-04-041-2/+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>
* | GIT_ONE_FILESYSTEM: flip the default to stop at filesystem boundariesJunio C Hamano2010-04-041-2/+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>
* | Add support for GIT_ONE_FILESYSTEMLars R. Damerow2010-03-281-0/+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>
* | truncate cwd string before printing error messageLars R. Damerow2010-03-281-1/+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>
* Merge branch 'nd/root-git'Junio C Hamano2010-03-071-5/+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
| * Support working directory located at rootNguyễn Thái Ngọc Duy2010-02-161-7/+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>
* | Merge branch 'jc/typo'Junio C Hamano2010-02-161-1/+1
|\ \ | | | | | | | | | | | | * jc/typo: Typofixes outside documentation area
| * | Typofixes outside documentation areaJunio C Hamano2010-02-031-1/+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>
* | | setenv(GIT_DIR) clean-upRené Scharfe2010-02-061-2/+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>
* | Merge branch 'bk/fix-relative-gitdir-file'Junio C Hamano2010-01-201-3/+19
|\ \ | | | | | | | | | | | | | | | * bk/fix-relative-gitdir-file: Handle relative paths in submodule .git files Test update-index for a gitlink to a .git file
| * | Handle relative paths in submodule .git filesBrad King2010-01-091-3/+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>
* | Merge branch 'mm/diag-path-in-treeish'Junio C Hamano2010-01-101-2/+13
|\ \ | |/ |/| | | | | * mm/diag-path-in-treeish: Detailed diagnosis when parsing an object name fails.
| * Detailed diagnosis when parsing an object name fails.Matthieu Moy2009-12-071-2/+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>
* | Merge branch 'maint' to sync with 1.6.5.7Junio C Hamano2009-12-161-2/+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
| * worktree: don't segfault with an absolute pathspec without a work treeJunio C Hamano2009-12-161-2/+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>
* | check_filename(): make verify_filename() callable without dyingJunio C Hamano2009-10-181-18/+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.
* Test for WIN32 instead of __MINGW32_Frank Li2009-09-181-1/+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>
* Use die_errno() instead of die() when checking syscallsThomas Rast2009-06-271-5/+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>
* Convert existing die(..., strerror(errno)) to die_errno()Thomas Rast2009-06-271-4/+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>
* "core.sharedrepository = 0mode" should set, not loosenJunio C Hamano2009-03-271-2/+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>
* Merge branch 'js/maint-1.6.0-path-normalize'Junio C Hamano2009-02-101-87/+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
| * Move sanitary_path_copy() to path.c and rename it to normalize_path_copy()Johannes Sixt2009-02-071-87/+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>
* | Merge branch 'sg/maint-gitdir-in-subdir'Junio C Hamano2009-01-211-1/+5
|\ \ | | | | | | | | | | | | * sg/maint-gitdir-in-subdir: Fix gitdir detection when in subdir of gitdir
| * | Fix gitdir detection when in subdir of gitdirSZEDER Gábor2009-01-171-1/+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>
* | Always show which directory is not a git repositoryRichard Hartmann2008-12-211-1/+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>
* | Make chdir failures visibleAlex Riesen2008-12-041-1/+2
|/ | | | | Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* make prefix_path() never return NULLDmitry Potapov2008-10-061-7/+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>
* setup_git_directory(): fix move to worktree toplevel directoryNguyễn Thái Ngọc Duy2008-08-301-0/+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>
* Merge branch 'dr/ceiling'Junio C Hamano2008-07-071-15/+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
| * Eliminate an unnecessary chdir("..")David Reiss2008-05-231-1/+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>
| * Add support for GIT_CEILING_DIRECTORIESDavid Reiss2008-05-231-11/+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>
* | Merge branch 'j6t/mingw'Junio C Hamano2008-07-021-20/+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(). ...
| * | Windows: Treat Windows style path names.Johannes Sixt2008-06-231-14/+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>
| * | setup.c: Prepare for Windows directory separators.Johannes Sixt2008-06-231-8/+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>
* | | Make git_dir a path relative to work_tree in setup_work_tree()Linus Torvalds2008-06-191-1/+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>
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