- 04 4月, 2012 4 次提交
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由 Junio C Hamano 提交于
Instead of just saying "bad index version", report the value we read from the disk. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Junio C Hamano 提交于
The function is the one that is reading from the data stream. It only is natural to make it responsible for reporting this number, not the caller. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Junio C Hamano 提交于
Both the on-disk format v2 and v3 pads the "name" field to the multiple of eight to make sure that various quantities in network long/short type can be accessed with ntohl/ntohs without having to worry about alignment, but this forces us to waste disk I/O bandwidth. Introduce ntoh_s()/ntoh_l() macros that the callers can use as if they were the regular ntohs()/ntohl() on a field that may not be aligned correctly. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Junio C Hamano 提交于
The on-disk format of the index file is a detail whose implementation is neatly encapsulated in read-cache.c; there is no need to expose it to the general public that include the cache.h header file. Also add a prominent mark to read-cache.c to delineate the parts that deal with the index file I/O routines from the remainder of the file. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 18 2月, 2012 1 次提交
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由 Junio C Hamano 提交于
When running "git add --refresh <pathspec>", we incorrectly showed the path that is unmerged even if it is outside the specified pathspec, even though we did honor pathspec and refreshed only the paths that matched. Note that this cange does not affect "git update-index --refresh"; for hysterical raisins, it does not take a pathspec (it takes real paths) and more importantly itss command line options are parsed and executed one by one as they are encountered, so "git update-index --refresh foo" means "first refresh the index, and then update the entry 'foo' by hashing the contents in file 'foo'", not "refresh only entry 'foo'". Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 19 11月, 2011 3 次提交
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由 Jeff King 提交于
If you have a deleted file and a porcelain refreshes the cache, we print: Unstaged changes after reset: M file This is technically correct, in that the file is modified, but it's friendlier to the user if we further differentiate the case of a deleted file (especially because this output looks a lot like "diff --name-status", which would also make the distinction). Similarly, we can distinguish typechanges ("T") and intent-to-add files ("A"), both of which appear as just "M" in the current output. The plumbing output for all cases remains "needs update" for historical compatibility. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
When refreshing the index, for modified (or unmerged) files we will print "needs update" (or "needs merge") for plumbing, or line similar to the output from "diff --name-status" for porcelain. The variables holding which type of message to show are named after the plumbing messages. However, as we begin to differentiate more cases at the porcelain level (with the plumbing message staying the same), that naming scheme will become awkward. Instead, name the variables after which case we found (modified or unmerged), not what we will output. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Jeff King 提交于
This will enable refresh_cache to differentiate more cases of modification (such as typechange) when telling the user what isn't fresh. Signed-off-by: NJeff King <peff@peff.net> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 27 10月, 2011 2 次提交
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由 René Scharfe 提交于
The code to estimate the in-memory size of the index based on its on-disk representation is subtly wrong for certain architecture-dependent struct layouts. Instead of fixing it, replace the code to keep the index entries in a single large block of memory and allocate each entry separately instead. This is both simpler and more flexible, as individual entries can now be freed. Actually using that added flexibility is left for a later patch. Suggested-by: NJunio C Hamano <gitster@pobox.com> Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 René Scharfe 提交于
estimate_cache_size() tries to guess how much memory is needed for the in-memory representation of an index file. It does that by using the file size, the number of entries and the difference of the sizes of the on-disk and in-memory structs -- without having to check the length of the name of each entry, which varies for each entry, but their sums are the same no matter the representation. Except there can be a difference. First of all, the size is really calculated by ce_size and ondisk_ce_size based on offsetof(..., name), not sizeof, which can be different. And entries are padded with 1 to 8 NULs at the end (after the variable name) to make their total length a multiple of eight. So in order to allocate enough memory to hold the index, change the delta calculation to be based on offsetof(..., name) and round up to the next multiple of eight. On a 32-bit Linux, this delta was used before: sizeof(struct cache_entry) == 72 sizeof(struct ondisk_cache_entry) == 64 --- 8 The actual difference for an entry with a filename length of one was, however (find the definitions are in cache.h): offsetof(struct cache_entry, name) == 72 offsetof(struct ondisk_cache_entry, name) == 62 ce_size == (72 + 1 + 8) & ~7 == 80 ondisk_ce_size == (62 + 1 + 8) & ~7 == 64 --- 16 So eight bytes less had been allocated for such entries. The new formula yields the correct delta: (72 - 62 + 7) & ~7 == 16 Reported-by: NJohn Hsing <tsyj2007@gmail.com> Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 26 8月, 2011 1 次提交
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由 Junio C Hamano 提交于
I've deliberately excluded the borrowed code in compat/nedmalloc directory. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 09 6月, 2011 1 次提交
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由 Theo Niessink 提交于
verify_dotfile() currently assumes that the path seperator is '/', but on Windows it can also be '\\', so use is_dir_sep() instead. Signed-off-by: NTheo Niessink <theo@taletn.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 08 6月, 2011 1 次提交
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由 Junio C Hamano 提交于
We simply want to say "At a directory boundary, be careful with a name that begins with a dot, forbid a name that ends with the boundary character or has duplicated bounadry characters". Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 28 5月, 2011 1 次提交
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由 Erik Faye-Lund 提交于
If someone manage to create a repo with a 'C:' entry in the root-tree, files can be written outside of the working-dir. This opens up a can-of-worms of exploits. Fix it by explicitly checking for a dos drive prefix when verifying a paht. While we're at it, make sure that paths beginning with '\' is considered absolute as well. Noticed-by: NTheo Niessink <theo@taletn.com> Signed-off-by: NErik Faye-Lund <kusmabite@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 10 5月, 2011 1 次提交
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由 Junio C Hamano 提交于
The "format_check" parameter tucked after the existing parameters is too ugly an afterthought to live in any reasonable API. Combine it with the other boolean parameter "write_object" into a single "flags" parameter. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 22 3月, 2011 2 次提交
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由 Junio C Hamano 提交于
Traditional "opportunistic index update" done by read-only "diff" and "status" was about updating cached lstat(2) information in the index for the next round. We missed another obvious optimization opportunity: when there are racily clean entries that will cease to be racily clean by updating $GIT_INDEX_FILE. Detect that case and write $GIT_INDEX_FILE out to give it a newer timestamp. Noticed by Lasse Makholm by stracing "git status" in a fresh checkout and counting the number of open(2) calls. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Junio C Hamano 提交于
When we had to refresh the index internally before running diff or status, we opportunistically updated the $GIT_INDEX_FILE so that later invocation of git can use the lstat(2) we already did in this invocation. Make them share a helper function to do so. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 23 2月, 2011 1 次提交
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由 Jonathan Nieder 提交于
Signed-off-by: NJonathan Nieder <jrnieder@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 08 2月, 2011 1 次提交
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由 Nguyễn Thái Ngọc Duy 提交于
Commits, trees and tags have structure. Don't let users feed git with malformed ones. Sooner or later git will die() when encountering them. Note that this patch does not check semantics. A tree that points to non-existent objects is perfectly OK (and should be so, users may choose to add commit first, then its associated tree for example). Signed-off-by: NNguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 04 2月, 2011 2 次提交
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由 Nguyễn Thái Ngọc Duy 提交于
Signed-off-by: NNguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Nguyễn Thái Ngọc Duy 提交于
Signed-off-by: NNguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 07 10月, 2010 1 次提交
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由 Joshua Jensen 提交于
When MyDir/ABC/filea.txt is added to Git, the disk directory MyDir/ABC/ is renamed to mydir/aBc/, and then mydir/aBc/fileb.txt is added, the index will contain MyDir/ABC/filea.txt and mydir/aBc/fileb.txt. Although the earlier portions of this patch series account for those differences in case, this patch makes the pathing consistent by folding the case of newly added files against the first file added with that path. In read-cache.c's add_to_index(), the index_name_exists() support used for git status's case insensitive directory lookups is used to find the proper directory case according to what the user already checked in. That is, MyDir/ABC/'s case is used to alter the stored path for fileb.txt to MyDir/ABC/fileb.txt (instead of mydir/aBc/fileb.txt). This is especially important when cloning a repository to a case sensitive file system. MyDir/ABC/ and mydir/aBc/ exist in the same directory on a Windows machine, but on Linux, the files exist in two separate directories. The update to add_to_index(), in effect, treats a Windows file system as case sensitive by making path case consistent. Signed-off-by: NJoshua Jensen <jjensen@workspacewhiz.com> Signed-off-by: NJohannes Sixt <j6t@kdbg.org> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 12 8月, 2010 1 次提交
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由 Jonathan Nieder 提交于
Noticed with valgrind. Signed-off-by: NJonathan Nieder <jrnieder@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 03 2月, 2010 1 次提交
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由 Shawn O. Pearce 提交于
The new dircache extension CACHE_EXT_RESOLVE_UNDO, whose value is 0x52455543, is actually the ASCII sequence 'REUC', not the ASCII sequence 'REUN'. Signed-off-by: NShawn O. Pearce <spearce@spearce.org> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 24 1月, 2010 1 次提交
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由 Junio C Hamano 提交于
The rule has always been that a cache entry that is ce_uptodate(ce) means that we already have checked the work tree entity and we know there is no change in the work tree compared to the index, and nobody should have to double check. Note that false ce_uptodate(ce) does not mean it is known to be dirty---it only means we don't know if it is clean. There are a few codepaths (refresh-index and preload-index are among them) that mark a cache entry as up-to-date based solely on the return value from ie_match_stat(); this function uses lstat() to see if the work tree entity has been touched, and for a submodule entry, if its HEAD points at the same commit as the commit recorded in the index of the superproject (a submodule that is not even cloned is considered clean). A submodule is no longer considered unmodified merely because its HEAD matches the index of the superproject these days, in order to prevent people from forgetting to commit in the submodule and updating the superproject index with the new submodule commit, before commiting the state in the superproject. However, the patch to do so didn't update the codepath that marks cache entries up-to-date based on the updated definition and instead worked it around by saying "we don't trust the return value of ce_uptodate() for submodules." This makes ce_uptodate() trustworthy again by not marking submodule entries up-to-date. The next step _could_ be to introduce a few "in-core" flag bits to cache_entry structure to record "this entry is _known_ to be dirty", call is_submodule_modified() from ie_match_stat(), and use these new bits to avoid running this rather expensive check more than once, but that can be a separate patch. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 22 1月, 2010 1 次提交
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由 Linus Torvalds 提交于
Exal Sibeaz pointed out that some git files are way too big, and that add_files_to_cache() brings in all the diff machinery to any git binary that needs the basic git SHA1 object operations from read-cache.c. Which is pretty much all of them. It's doubly silly, since add_files_to_cache() is only used by builtin programs (add, checkout and commit), so it's fairly easily fixed by just moving the thing to builtin-add.c, and avoiding the dependency entirely. I initially argued to Exal that it would probably be best to try to depend on smart compilers and linkers, but after spending some time trying to make -ffunction-sections work and giving up, I think Exal was right, and the fix is to just do some trivial cleanups like this. This trivial cleanup results in pretty stunning file size differences. The diff machinery really is mostly used by just the builtin programs, and you have things like these trivial before-and-after numbers: -rwxr-xr-x 1 torvalds torvalds 1727420 2010-01-21 10:53 git-hash-object -rwxrwxr-x 1 torvalds torvalds 940265 2010-01-21 11:16 git-hash-object Now, I'm not saying that 940kB is good either, but that's mostly all the debug information - you can see the real code with 'size': text data bss dec hex filename 418675 3920 127408 550003 86473 git-hash-object (before) 230650 2288 111728 344666 5425a git-hash-object (after) ie we have a nice 24% size reduction from this trivial cleanup. It's not just that one file either. I get: [torvalds@nehalem git]$ du -s /home/torvalds/libexec/git-core 45640 /home/torvalds/libexec/git-core (before) 33508 /home/torvalds/libexec/git-core (after) so we're talking 12MB of diskspace here. (Of course, stripping all the binaries brings the 33MB down to 9MB, so the whole debug information thing is still the bulk of it all, but that's a separate issue entirely) Now, I'm sure there are other things we should do, and changing our compiler flags from -O2 to -Os would bring the text size down by an additional almost 20%, but this thing Exal pointed out seems to be some good low-hanging fruit. Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 12 1月, 2010 1 次提交
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由 Junio C Hamano 提交于
Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 04 1月, 2010 1 次提交
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由 Junio C Hamano 提交于
Commit 9e8eceab (Add 'merge' mode to 'git reset', 2008-12-01) disallowed "git reset --merge" when there was unmerged entries. But it wished if unmerged entries were reset as if --hard (instead of --merge) has been used. This makes sense because all "mergy" operations makes sure that any path involved in the merge does not have local modifications before starting, so resetting such a path away won't lose any information. The previous commit changed the behavior of --merge to accept resetting unmerged entries if they are reset to a different state than HEAD, but it did not reset the changes in the work tree, leaving the conflict markers in the resulting file in the work tree. Fix it by doing three things: - Update the documentation to match the wish of original "reset --merge" better, namely, "An unmerged entry is a sign that the path didn't have any local modification and can be safely resetted to whatever the new HEAD records"; - Update read_index_unmerged(), which reads the index file into the cache while dropping any higher-stage entries down to stage #0, not to copy the object name from the higher stage entry. The code used to take the object name from the a stage entry ("base" if you happened to have stage #1, or "ours" if both sides added, etc.), which essentially meant that you are getting random results depending on what the merge did. The _only_ reason we want to keep a previously unmerged entry in the index at stage #0 is so that we don't forget the fact that we have corresponding file in the work tree in order to be able to remove it when the tree we are resetting to does not have the path. In order to differentiate such an entry from ordinary cache entry, the cache entry added by read_index_unmerged() is marked as CE_CONFLICTED. - Update merged_entry() and deleted_entry() so that they pay attention to cache entries marked as CE_CONFLICTED. They are previously unmerged entries, and the files in the work tree that correspond to them are resetted away by oneway_merge() to the version from the tree we are resetting to. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 28 12月, 2009 1 次提交
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由 Nathaniel W Filardo 提交于
On big endian platforms with 8-byte unsigned long, the code reads the size of the index extension section (which is a 4-byte network byte order integer) incorrectly. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 26 12月, 2009 1 次提交
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由 Junio C Hamano 提交于
When resolving a conflict using "git add" to create a stage #0 entry, or "git rm" to remove entries at higher stages, remove_index_entry_at() function is eventually called to remove unmerged (i.e. higher stage) entries from the index. Introduce a "resolve_undo_info" structure and keep track of the removed cache entries, and save it in a new index extension section in the index_state. Operations like "read-tree -m", "merge", "checkout [-m] <branch>" and "reset" are signs that recorded information in the index is no longer necessary. The data is removed from the index extension when operations start; they may leave conflicted entries in the index, and later user actions like "git add" will record their conflicted states afresh. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 15 12月, 2009 1 次提交
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由 Nguyễn Thái Ngọc Duy 提交于
Previously CE_MATCH_IGNORE_VALID flag is used by both valid and skip-worktree bits. While the two bits have similar behaviour, sharing this flag means "git update-index --really-refresh" will ignore skip-worktree while it should not. Instead another flag is introduced to ignore skip-worktree bit, CE_MATCH_IGNORE_VALID only applies to valid bit. Signed-off-by: NNguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 24 8月, 2009 1 次提交
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由 Nguyễn Thái Ngọc Duy 提交于
grep: turn on --cached for files that is marked skip-worktree ls-files: do not check for deleted file that is marked skip-worktree update-index: ignore update request if it's skip-worktree, while still allows removing diff*: skip worktree version Signed-off-by: NNguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 22 8月, 2009 2 次提交
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由 Matthieu Moy 提交于
git reset without argument displays a summary of the local modification, like this: $ git reset Makefile: locally modified Some people have problems with this; they look like an error message. This patch makes its output mimic how "git checkout $another_branch" reports the paths with local modifications. "git add --refresh --verbose" is changed in the same way. It also adds a header to make it clear that the output is informative, and not an error. Signed-off-by: NMatthieu Moy <Matthieu.Moy@imag.fr>
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由 Matthieu Moy 提交于
The change in the output is going to become more general than just saying "changed", so let's make the variable name more general too. Signed-off-by: NMatthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 28 6月, 2009 2 次提交
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由 Thomas Rast 提交于
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: NThomas Rast <trast@student.ethz.ch> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Thomas Rast 提交于
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: NThomas Rast <trast@student.ethz.ch> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 16 3月, 2009 1 次提交
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由 Kjetil Barvik 提交于
Commit e1afca4f "write_index(): update index_state->timestamp after flushing to disk" on 2009-02-23 used stat.ctime to record the timestamp of the index-file. This is wrong, so fix this and use the correct stat.mtime timestamp instead. Commit 110c46a9 "Not all systems use st_[cm]tim field for ns resolution file timestamp" on 2009-03-08, has a similar bug for the builtin-fetch-pack.c file. Signed-off-by: NKjetil Barvik <barvik@broadpark.no> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 09 3月, 2009 1 次提交
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由 Junio C Hamano 提交于
Some codepaths do not still use the ST_[CM]TIME_NSEC() pair of macros introduced by the previous commit but assumes all systems use st_mtim and st_ctim fields in "struct stat" to record nanosecond resolution part of the file timestamps. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 08 3月, 2009 1 次提交
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由 Kjetil Barvik 提交于
Traditionally, the lack of USE_NSEC meant "do not record nor use the nanosecond resolution part of the file timestamps". To avoid problems on filesystems that lose the ns part when the metadata is flushed to the disk and then later read back in, disabling USE_NSEC has been a good idea in general. If you are on a filesystem without such an issue, it does not hurt to read and store them in the cached stat data in the index entries even if your git is compiled without USE_NSEC. The index left with such a version of git can be read by git compiled with USE_NSEC and it can make use of the nanosecond part to optimize the check to see if the path on the filesystem hsa been modified since we last looked at. Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 24 2月, 2009 1 次提交
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由 Kjetil Barvik 提交于
Since this timestamp is used to check for racy-clean files, it is important to keep it uptodate. For the 'git checkout' command without the '-q' option, this make a huge difference. Before, each and every file which was updated, was racy-clean after the call to unpack_trees() and write_index() but before the GIT process ended. And because of the call to show_local_changes() in builtin-checkout.c, we ended up reading those files back into memory, doing a SHA1 to check if the files was really different from the index. And, of course, no file was different. With this fix, 'git checkout' without the '-q' option should now be almost as fast as with the '-q' option, but not quite, as we still do some few lstat(2) calls more without the '-q' option. Below is some average numbers for 10 checkout's to v2.6.27 and 10 to v2.6.25 of the Linux kernel, to show the difference: before (git version 1.6.2.rc1.256.g58a87): 7.860 user 2.427 sys 19.465 real 52.8% CPU faults: 0 major 95331 minor after: 6.184 user 2.160 sys 17.619 real 47.4% CPU faults: 0 major 38994 minor Signed-off-by: NKjetil Barvik <barvik@broadpark.no> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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