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2007-09-17Now that cache.h needs strbuf.h, remove useless includes.Pierre Habouzit
Signed-off-by: Pierre Habouzit <madcoder@debian.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-10Strbuf API extensions and fixes.Pierre Habouzit
* Add strbuf_rtrim to remove trailing spaces. * Add strbuf_insert to insert data at a given position. * Off-by one fix in strbuf_addf: strbuf_avail() does not counts the final \0 so the overflow test for snprintf is the strict comparison. This is not critical as the growth mechanism chosen will always allocate _more_ memory than asked, so the second test will not fail. It's some kind of miracle though. * Add size extension hints for strbuf_init and strbuf_read. If 0, default applies, else: + initial buffer has the given size for strbuf_init. + first growth checks it has at least this size rather than the default 8192. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-09-07Use strbuf API in cache-tree.cPierre Habouzit
Should even be marginally faster. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-06-23Two trivial -Wcast-qual fixesJunio C Hamano
Luiz Fernando N. Capitulino noticed the one in tree-walk.h where we cast away constness while computing the legnth of a tree entry. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-05-22rename dirlink to gitlink.Martin Waitz
Unify naming of plumbing dirlink/gitlink concept: git ls-files -z '*.[ch]' | xargs -0 perl -pi -e 's/dirlink/gitlink/g;' -e 's/DIRLNK/GITLINK/g;' Signed-off-by: Junio C Hamano <junkio@cox.net>
2007-04-10Teach core object handling functions about gitlinksLinus Torvalds
This teaches the really fundamental core SHA1 object handling routines about gitlinks. We can compare trees with gitlinks in them (although we can not actually generate patches for them yet - just raw git diffs), and they show up as commits in "git ls-tree". We also know to compare gitlinks as if they were directories (ie the normal "sort as trees" rules apply). [jc: amended a cut&paste error] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-11-13Catch errors when writing an index that contains invalid objects.Johannes Sixt
If git-write-index is called without --missing-ok, it reports invalid objects that it finds in the index. But without this patch it dies right away or may run into an infinite loop. Signed-off-by: Johannes Sixt <johannes.sixt@telecom.at> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-30Surround "#define DEBUG 0" with "#ifndef DEBUG..#endif"Junio C Hamano
Otherwise "make CFLAGS=-DDEBUG=1" is cumbersome to run. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-14Add hash_sha1_file()Rene Scharfe
Most callers of write_sha1_file_prepare() are only interested in the resulting hash but don't care about the returned file name or the header. This patch adds a simple wrapper named hash_sha1_file() which does just that, and converts potential callers. Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-08-23Convert memcpy(a,b,20) to hashcpy(a,b).Shawn Pearce
This abstracts away the size of the hash values when copying them from memory location to memory location, much as the introduction of hashcmp abstracted away hash value comparsion. A few call sites were using char* rather than unsigned char* so I added the cast rather than open hashcpy to be void*. This is a reasonable tradeoff as most call sites already use unsigned char* and the existing hashcmp is also declared to be unsigned char*. [jc: Splitted the patch to "master" part, to be followed by a patch for merge-recursive.c which is not in "master" yet. Fixed the cast in the latter hunk to combine-diff.c which was wrong in the original. Also converted ones left-over in combine-diff.c, diff-lib.c and upload-pack.c ] Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-07Merge branch 'jc/gitlink' into nextJunio C Hamano
* jc/gitlink: write-tree: --prefix=<path> read-tree: --prefix=<path>/ option.
2006-05-03cache-tree: a bit more debugging support.Junio C Hamano
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-02write-tree: --prefix=<path>Junio C Hamano
The "bind" commit can express an aggregation of multiple projects into a single commit. In such an organization, there would be one project, root of whose tree object is at the same level of the root of the aggregated projects, and other projects have their toplevel in separate subdirectories. Let's call that root level project the "primary project", and call other ones just "subprojects". You would first read-tree the primary project, and then graft the subprojects under their appropriate location using read-tree --prefix=<subdir>/ repeatedly. To write out a tree object from such an index for a subproject, write-tree --prefix=<subdir>/ is used. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-05-02cache-tree: replace a sscanf() by two strtol() callsJohannes Schindelin
On one of my systems, sscanf() first calls strlen() on the buffer. But this buffer is not terminated by NUL. So git crashed. strtol() does not share that problem, as it stops reading after the first non-digit. [jc: original patch was wrong and did not read the cache-tree structure correctly; this has been fixed up and tested minimally with fsck-objects. ] Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-28cache-tree.c: typefixJunio C Hamano
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-27cache_tree_update: give an option to update cache-tree only.Junio C Hamano
When the extra "dryrun" parameter is true, cache_tree_update() recomputes the invalid entry but does not actually creates new tree object. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-27read-tree: teach 1-way merege and plain read to prime cache-tree.Junio C Hamano
This teaches read-tree to fully populate valid cache-tree when reading a tree from scratch, or reading a single tree into an existing index, reusing only the cached stat information (i.e. one-way merge). We have already taught update-index about cache-tree, so "git checkout" followed by updates to a few path followed by a "git commit" would become very efficient. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-26cache-tree: sort the subtree entries.Junio C Hamano
Not that this makes practical performance difference; the kernel tree for example has 200 or so directories that have subdirectory, and the largest ones have 57 of them (fs and drivers). With a test to apply 600 patches with git-apply and git-write-tree, this did not make more than one per-cent of a difference, but it is a good cleanup. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-25index: make the index file format extensible.Junio C Hamano
... and move the cache-tree data into it. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-24cache-tree: protect against "git prune".Junio C Hamano
We reused the cache-tree data without verifying the tree object still exists. Recompute in cache_tree_update() an otherwise valid cache-tree entry when the tree object disappeared. This is not usually a problem, but theoretically without this fix things can break when the user does something like this: - read-index from a side branch - write-tree the result - remove the side branch with "git branch -D" - remove the unreachable objects with "git prune" - write-tree what is in the index. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-24Add cache-tree.Junio C Hamano
The cache_tree data structure is to cache tree object names that would result from the current index file. The idea is to have an optional file to record each tree object name that corresponds to a directory path in the cache when we run write_cache(), and read it back when we run read_cache(). During various index manupulations, we selectively invalidate the parts so that the next write-tree can bypass regenerating tree objects for unchanged parts of the directory hierarchy. We could perhaps make the cache-tree data an optional part of the index file, but that would involve the index format updates, so unless we need it for performance reasons, the current plan is to use a separate file, $GIT_DIR/index.aux to store this information and link it with the index file with the checksum that is already used for index file integrity check. Signed-off-by: Junio C Hamano <junkio@cox.net>