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2008-07-02Merge branch 'j6t/mingw'Libravatar Junio C Hamano1-1/+1
* 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(). ...
2008-06-26Teach "diff --check" about new blank lines at endLibravatar Junio C Hamano1-0/+1
When a patch adds new blank lines at the end, "git apply --whitespace" warns. This teaches "diff --check" to do the same. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26check_and_emit_line(): rename and refactorLibravatar Junio C Hamano1-3/+2
The function name was too bland and not explicit enough as to what it is checking. Split it into two, and call the one that checks if there is a whitespace breakage "ws_check()", and call the other one that checks and emits the line after color coding "ws_check_emit()". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-25Merge branch 'lt/config-fsync'Libravatar Junio C Hamano1-0/+1
* lt/config-fsync: Add config option to enable 'fsync()' of object files Split up default "i18n" and "branch" config parsing into helper routines Split up default "user" config parsing into helper routine Split up default "core" config parsing into helper routine
2008-06-24optimize verify-pack a bitLibravatar Nicolas Pitre1-0/+1
Using find_pack_entry_one() to get object offsets is rather suboptimal when nth_packed_object_offset() can be used directly. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-24clone: create intermediate directories of destination repoLibravatar Jeff King1-0/+1
The shell version used to use "mkdir -p" to create the repo path, but the C version just calls "mkdir". Let's replicate the old behavior. We have to create the git and worktree leading dirs separately; while most of the time, the worktree dir contains the git dir (as .git), the user can override this using GIT_WORK_TREE. We can reuse safe_create_leading_directories, but we need to make a copy of our const buffer to do so. Since merge-recursive uses the same pattern, we can factor this out into a global function. This has two other cleanup advantages for merge-recursive: 1. mkdir_p wasn't a very good name. "mkdir -p foo/bar" actually creates bar, but this function just creates the leading directories. 2. mkdir_p took a mode argument, but it was completely ignored. Acked-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-23implement some resilience against pack corruptionsLibravatar Nicolas Pitre1-0/+2
We should be able to fall back to loose objects or alternative packs when a pack becomes corrupted. This is especially true when an object exists in one pack only as a delta but its base object is corrupted. Currently there is no way to retrieve the former object even if the later is available in another pack or loose. This patch allows for a delta to be resolved (with a performance cost) using a base object from a source other than the pack where that delta is located. Same thing for non-delta objects: rather than failing outright, a search is made in other packs or used loose when the currently active pack has it but corrupted. Of course git will become extremely noisy with error messages when that happens. However, if the operation succeeds nevertheless, a simple 'git repack -a -f -d' will "fix" the corrupted repository given that all corrupted objects have a good duplicate somewhere in the object store, possibly manually copied from another source. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-23Windows: Treat Windows style path names.Libravatar Johannes Sixt1-1/+1
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>
2008-06-22Merge branch 'sn/static'Libravatar Junio C Hamano1-2/+0
* sn/static: config.c: make git_env_bool() static environment.c: remove unused function
2008-06-19config.c: make git_env_bool() staticLibravatar しらいしななこ1-1/+0
This function is not used by any other file. Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-19environment.c: remove unused functionLibravatar しらいしななこ1-1/+0
get_refs_directory() is not used anywhere. Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-19Make git_dir a path relative to work_tree in setup_work_tree()Libravatar Linus Torvalds1-0/+1
Once we find the absolute paths for git_dir and work_tree, we can make git_dir a relative path since we know pwd will be work_tree. This should save the kernel some time traversing the path to work_tree all the time if git_dir is inside work_tree. Daniel's patch didn't apply for me as-is, so I recreated it with some differences, and here are the numbers from ten runs each. There is some IO for me - probably due to more-or-less random flushing of the journal - so the variation is bigger than I'd like, but whatever: Before: real 0m8.135s real 0m7.933s real 0m8.080s real 0m7.954s real 0m7.949s real 0m8.112s real 0m7.934s real 0m8.059s real 0m7.979s real 0m8.038s After: real 0m7.685s real 0m7.968s real 0m7.703s real 0m7.850s real 0m7.995s real 0m7.817s real 0m7.963s real 0m7.955s real 0m7.848s real 0m7.969s Now, going by "best of ten" (on the assumption that the longer numbers are all due to IO), I'm saying a 7.933s -> 7.685s reduction, and it does seem to be outside of the noise (ie the "after" case never broke 8s, while the "before" case did so half the time). So looks like about 3% to me. Doing it for a slightly smaller test-case (just the "arch" subdirectory) gets more stable numbers probably due to not filling the journal with metadata updates, so we have: Before: real 0m1.633s real 0m1.633s real 0m1.633s real 0m1.632s real 0m1.632s real 0m1.630s real 0m1.634s real 0m1.631s real 0m1.632s real 0m1.632s After: real 0m1.610s real 0m1.609s real 0m1.610s real 0m1.608s real 0m1.607s real 0m1.610s real 0m1.609s real 0m1.611s real 0m1.608s real 0m1.611s where I'ld just take the averages and say 1.632 vs 1.610, which is just over 1% peformance improvement. So it's not in the noise, but it's not as big as I initially thought and measured. (That said, it obviously depends on how deep the working directory path is too, and whether it is behind NFS or something else that might need to cause more work to look up). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-18Add config option to enable 'fsync()' of object filesLibravatar Linus Torvalds1-0/+1
As explained in the documentation[*] this is totally useless on filesystems that do ordered/journalled data writes, but it can be a useful safety feature on filesystems like HFS+ that only journal the metadata, not the actual file contents. It defaults to off, although we could presumably in theory some day auto-enable it on a per-filesystem basis. [*] Yes, I updated the docs for the thing. Hell really _has_ frozen over, and the four horsemen are probably just beyond the horizon. EVERYBODY PANIC! Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-16sha1_file.c: simplify parse_pack_index()Libravatar Junio C Hamano1-2/+0
It was implemented as a thin wrapper around an otherwise unused helper function parse_pack_index_file(). The code becomes simpler and easier to read by consolidating the two. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-13sha1_file.c: dead code removalLibravatar Junio C Hamano1-3/+0
write_sha1_from_fd() and write_sha1_to_fd() were dead code nobody called, neither the latter's helper repack_object() was. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-06Use nonrelative paths instead of absolute paths for cloned repositoriesLibravatar Daniel Barkalow1-0/+1
Particularly for the "alternates" file, if one will be created, we want a path that doesn't depend on the current directory, but we want to retain any symlinks in the path as given and any in the user's view of the current directory when the path was given. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-31Make pack creation always fsync() the resultLibravatar Linus Torvalds1-0/+1
This means that we can depend on packs always being stable on disk, simplifying a lot of the object serialization worries. And unlike loose objects, serializing pack creation IO isn't going to be a performance killer. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-25Merge branch 'js/config-cb'Libravatar Junio C Hamano1-5/+5
* js/config-cb: Provide git_config with a callback-data parameter Conflicts: builtin-add.c builtin-cat-file.c
2008-05-25Merge branch 'jc/add-n-u'Libravatar Junio C Hamano1-6/+7
* jc/add-n-u: Make git add -n and git -u -n output consistent "git-add -n -u" should not add but just report Conflicts: builtin-add.c builtin-mv.c cache.h read-cache.c
2008-05-25Merge branch 'db/clone-in-c'Libravatar Junio C Hamano1-0/+7
* db/clone-in-c: Add test for cloning with "--reference" repo being a subset of source repo Add a test for another combination of --reference Test that --reference actually suppresses fetching referenced objects clone: fall back to copying if hardlinking fails builtin-clone.c: Need to closedir() in copy_or_link_directory() builtin-clone: fix initial checkout Build in clone Provide API access to init_db() Add a function to set a non-default work tree Allow for having for_each_ref() list extra refs Have a constant extern refspec for "--tags" Add a library function to add an alternate to the alternates file Add a lockfile function to append to a file Mark the list of refs to fetch as const Conflicts: cache.h t/t5700-clone-reference.sh
2008-05-25Merge branch 'js/ignore-submodule'Libravatar Junio C Hamano1-0/+1
* js/ignore-submodule: Ignore dirty submodule states during rebase and stash Teach update-index about --ignore-submodules diff options: Introduce --ignore-submodules
2008-05-23Merge branch 'bc/repack'Libravatar Junio C Hamano1-0/+1
* bc/repack: Documentation/git-repack.txt: document new -A behaviour let pack-objects do the writing of unreachable objects as loose objects add a force_object_loose() function builtin-gc.c: deprecate --prune, it now really has no effect git-gc: always use -A when manually repacking repack: modify behavior of -A option to leave unreferenced objects unpacked Conflicts: builtin-pack-objects.c
2008-05-21Merge branch 'ar/add-unreadable'Libravatar Junio C Hamano1-1/+7
* ar/add-unreadable: Add a config option to ignore errors for git-add Add a test for git-add --ignore-errors Add --ignore-errors to git-add to allow it to skip files with read errors Extend interface of add_files_to_cache to allow ignore indexing errors Make the exit code of add_file_to_index actually useful
2008-05-21"git-add -n -u" should not add but just reportLibravatar Junio C Hamano1-5/+7
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-15Teach update-index about --ignore-submodulesLibravatar Johannes Schindelin1-0/+1
Like with the diff machinery, update-index should sometimes just ignore submodules (e.g. to determine a clean state before a rebase). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-14Merge branch 'sb/committer'Libravatar Junio C Hamano1-0/+1
* sb/committer: commit: Show committer if automatic commit: Show author if different from committer Preparation to call determine_author_info from prepare_to_commit
2008-05-14Provide git_config with a callback-data parameterLibravatar Johannes Schindelin1-5/+5
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>
2008-05-13add a force_object_loose() functionLibravatar Nicolas Pitre1-0/+1
This is meant to force the creation of a loose object even if it already exists packed. Needed for the next commit. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-12Extend interface of add_files_to_cache to allow ignore indexing errorsLibravatar Alex Riesen1-1/+7
Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-11Merge branch 'lt/core-optim'Libravatar Junio C Hamano1-17/+24
* lt/core-optim: Optimize symlink/directory detection Avoid some unnecessary lstat() calls is_racy_timestamp(): do not check timestamp for gitlinks diff-lib.c: rename check_work_tree_entity() diff: a submodule not checked out is not modified Add t7506 to test submodule related functions for git-status t4027: test diff for submodule with empty directory Make git-add behave more sensibly in a case-insensitive environment When adding files to the index, add support for case-independent matches Make unpack-tree update removed files before any updated files Make branch merging aware of underlying case-insensitive filsystems Add 'core.ignorecase' option Make hash_name_lookup able to do case-independent lookups Make "index_name_exists()" return the cache_entry it found Move name hashing functions into a file of its own Make unpack_trees_options bit flags actual bitfields
2008-05-11Allow tracking branches to set up rebase by default.Libravatar Dustin Sallings1-0/+8
Change cd67e4d4 introduced a new configuration parameter that told pull to automatically perform a rebase instead of a merge. This change provides a configuration option to enable this feature automatically when creating a new branch. If the variable branch.autosetuprebase applies for a branch that's being created, that branch will have branch.<name>.rebase set to true. Signed-off-by: Dustin Sallings <dustin@spy.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-10Optimize symlink/directory detectionLibravatar Linus Torvalds1-1/+1
This is the base for making symlink detection in the middle fo a pathname saner and (much) more efficient. Under various loads, we want to verify that the full path leading up to a filename is a real directory tree, and that when we successfully do an 'lstat()' on a filename, we don't get a false positive due to a symlink in the middle of the path that git should have seen as a symlink, not as a normal path component. The 'has_symlink_leading_path()' function already did this, and cached a single level of symlink information, but didn't cache the _lack_ of a symlink, so the normal behaviour was actually the wrong way around, and we ended up doing an 'lstat()' on each path component to check that it was a real directory. This caches the last detected full directory and symlink entries, and speeds up especially deep directory structures a lot by avoiding to lstat() all the directories leading up to each entry in the index. [ This can - and should - probably be extended upon so that we eventually never do a bare 'lstat()' on any path entries at *all* when checking the index, but always check the full path carefully. Right now we do not generally check the whole path for all our normal quick index revalidation. We should also make sure that we're careful about all the invalidation, ie when we remove a link and replace it by a directory we should invalidate the symlink cache if it matches (and vice versa for the directory cache). But regardless, the basic function needs to be sane to do that. The old 'has_symlink_leading_path()' was not capable enough - or indeed the code readable enough - to really do that sanely. So I'm pushing this as not just an optimization, but as a base for further work. ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-10Avoid some unnecessary lstat() callsLibravatar Linus Torvalds1-0/+2
The commit sequence used to do if (file_exists(p->path)) add_file_to_cache(p->path, 0); where both "file_exists()" and "add_file_to_cache()" needed to do a lstat() on the path to do their work. This cuts down 'lstat()' calls for the partial commit case by two for each path we know about (because we do this twice per path). Just move the lstat() to the caller instead (that's all that "file_exists()" really does), and pass the stat information down to the add_to_cache() function. This essentially makes 'add_to_index()' the core function that adds a path to the index, getting the index pointer, the pathname and the stat information as arguments. There are then shorthand helper functions that use this core function: - 'add_to_cache()' is just 'add_to_index()' with the default index - 'add_file_to_cache/index()' is the same, but does the lstat() call itself, so you can pass just the pathname if you don't already have the stat information available. So old users of the 'add_file_to_xyzzy()' are essentially left unchanged, and this just exposes the more generic helper function that can take existing stat information into account. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-10Merge branch 'lt/case-insensitive'Libravatar Junio C Hamano1-16/+21
* lt/case-insensitive: Make git-add behave more sensibly in a case-insensitive environment When adding files to the index, add support for case-independent matches Make unpack-tree update removed files before any updated files Make branch merging aware of underlying case-insensitive filsystems Add 'core.ignorecase' option Make hash_name_lookup able to do case-independent lookups Make "index_name_exists()" return the cache_entry it found Move name hashing functions into a file of its own Make unpack_trees_options bit flags actual bitfields
2008-05-08Merge branch 'db/learn-HEAD'Libravatar Junio C Hamano1-0/+1
* db/learn-HEAD: Make ls-remote http://... list HEAD, like for git://... Make walker.fetch_ref() take a struct ref.
2008-05-06commit: Show committer if automaticLibravatar Santi Béjar1-0/+1
To warn the user in case he/she might be using an unintended committer identity. Signed-off-by: Santi Béjar <sbejar@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-05Merge branch 'lh/git-file'Libravatar Junio C Hamano1-0/+1
* 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"
2008-05-04Provide API access to init_db()Libravatar Daniel Barkalow1-0/+4
The caller first calls set_git_dir() to specify the GIT_DIR, and then calls init_db() to initialize it. This also cleans up various parts of the code to account for the fact that everything is done with GIT_DIR set, so it's unnecessary to pass the specified directory around. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-04Add a function to set a non-default work treeLibravatar Daniel Barkalow1-0/+1
This function may only be used before the work tree is used. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-04Add a library function to add an alternate to the alternates fileLibravatar Daniel Barkalow1-0/+1
This is in the core so that, if the alternates file has already been read, the addition can be parsed and put into effect for the current process. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-04Add a lockfile function to append to a fileLibravatar Daniel Barkalow1-0/+1
This takes care of copying the original contents into the replacement file after the lock is held, so that concurrent additions can't miss each other's changes. [jc: munged to drop mmap in favor of copy_file.] Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-29Make read_in_full() and write_in_full() consistent with xread() and xwrite()Libravatar Heikki Orsila1-2/+2
xread() and xwrite() return ssize_t values as their native POSIX counterparts read(2) and write(2). To be consistent, read_in_full() and write_in_full() should also return ssize_t values. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-26Make ls-remote http://... list HEAD, like for git://...Libravatar Daniel Barkalow1-0/+1
This makes a struct ref able to represent a symref, and makes http.c able to recognize one, and makes transport.c look for "HEAD" as a ref in the list, and makes it dereference symrefs for the resulting ref, if any. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-16Make core.sharedRepository more genericLibravatar Heikki Orsila1-3/+13
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>
2008-04-12git_config_bool_or_int()Libravatar Junio C Hamano1-0/+1
This new function can be used by config parsers to tell if a variable is simply set, set to 1, or set to "true". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-09Add platform-independent .git "symlink"Libravatar Lars Hjemli1-0/+1
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>
2008-04-09Make git-add behave more sensibly in a case-insensitive environmentLibravatar Linus Torvalds1-0/+1
This expands on the previous patch, and allows "git add" to sanely handle a filename that has changed case, keeping the case in the index constant, and avoiding aliases. In particular, if you have an index entry called "File", but the checked-out tree is case-corrupted and has an entry called "file" instead, doing a git add . (or naming "file" explicitly) will automatically notice that we have an alias, and will replace the name "file" with the existing index capitalization (ie "File"). However, if we actually have *both* a file called "File" and one called "file", and they don't have the same lstat() information (ie we're on a case-sensitive filesystem but have the "core.ignorecase" flag set), we will error out if we try to add them both. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-09Add 'core.ignorecase' optionLibravatar Linus Torvalds1-0/+1
..and start using it for directory entry traversal (ie "git status" will not consider entries that match an existing entry case-insensitively to be a new file) Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-09Make hash_name_lookup able to do case-independent lookupsLibravatar Linus Torvalds1-2/+2
Right now nobody uses it, but "index_name_exists()" gets a flag so you can enable it on a case-by-case basis. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-09Make "index_name_exists()" return the cache_entry it foundLibravatar Linus Torvalds1-1/+1
This allows verify_absent() in unpack_trees() to use the hash chains rather than looking it up using the binary search. Perhaps more importantly, it's also going to be useful for the next phase, where we actually start looking at the cache entry when we do case-insensitive lookups and checking the result. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>