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2006-04-15Split init_revisions() out of setup_revisions()Libravatar Junio C Hamano1-0/+2
Merging all three option parsers related to whatchanged is unarguably the right thing, but the fallout was too big to scare me away. Let's try it once again, but once step at time. This splits out init_revisions() call from setup_revisions(), so that the callers can set different defaults to match the traditional benaviour. The rev-list command is still broken in a big way, which is the topic of next step. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-04-07blame -S <ancestry-file>Libravatar Junio C Hamano1-0/+11
This adds the -S <ancestry-file> option to blame, which is needed by the CVS server emulation. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-03-10Make it possible to not clobber object.util in sort_in_topological_order ↵Libravatar Fredrik Kuivinen1-3/+17
(take 2) Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-02-15topo-order: make --date-order optional.Libravatar Junio C Hamano1-1/+3
This adds --date-order to rev-list; it is similar to topo order in the sense that no parent comes before all of its children, but otherwise things are still ordered in the commit timestamp order. The same flag is also added to show-branch. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-01-28pretty_print_commit(): pass commit object instead of commit->buffer.Libravatar Junio C Hamano1-1/+1
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-01-28diff-tree: abbreviate merge parent object names with --abbrev --pretty.Libravatar Junio C Hamano1-1/+1
When --abbrev is in effect, abbreviate the merge parent names in prettyprinted output. Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-01-07describe: allow more than one revs to be named.Libravatar Junio C Hamano1-0/+2
The main loop was prepared to take more than one revs, but the actual naming logic wad not (it used pop_most_recent_commit while forgetting that the commit marks stay after it's done). Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-11-11Add --pretty=fullerLibravatar Junio C Hamano1-0/+1
git log without --pretty showed author and author-date, while with --pretty=full showed author and committer but no dates. The new formatting option, --pretty=fuller, shows both name and timestamp for author and committer. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-09-15[PATCH] Avoid wasting memory in git-rev-listLibravatar Linus Torvalds1-0/+1
As pointed out on the list, git-rev-list can use a lot of memory. One low-hanging fruit is to free the commit buffer for commits that we parse. By default, parse_commit() will save away the buffer, since a lot of cases do want it, and re-reading it continually would be unnecessary. However, in many cases the buffer isn't actually necessary and saving it just wastes memory. We could just free the buffer ourselves, but especially in git-rev-list, we actually end up using the helper functions that automatically add parent commits to the commit lists, so we don't actually control the commit parsing directly. Instead, just make this behaviour of "parse_commit()" a global flag. Maybe this is a bit tasteless, but it's very simple, and it makes a noticable difference in memory usage. Before the change: [torvalds@g5 linux]$ /usr/bin/time git-rev-list v2.6.12..HEAD > /dev/null 0.26user 0.02system 0:00.28elapsed 99%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+3714minor)pagefaults 0swaps after the change: [torvalds@g5 linux]$ /usr/bin/time git-rev-list v2.6.12..HEAD > /dev/null 0.26user 0.00system 0:00.27elapsed 100%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (0major+2433minor)pagefaults 0swaps note how the minor faults have decreased from 3714 pages to 2433 pages. That's all due to the fewer anonymous pages allocated to hold the comment buffers and their metadata. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-22[PATCH] Add 'git show-branch'.Libravatar Junio C Hamano1-0/+2
The 'git show-branches' command turns out to be reasonably useful, but painfully slow. So rewrite it in C, using ideas from merge-base while enhancing it a bit more. - Unlike show-branches, it can take --heads (show me all my heads), --tags (show me all my tags), or --all (both). - It can take --more=<number> to show beyond the merge-base. - It shows the short name for each commit in the extended SHA1 syntax. - It can find merge-base for more than two heads. Examples: $ git show-branch --more=6 HEAD is almost the same as "git log --pretty=oneline --max-count=6". $ git show-branch --merge-base master mhf misc finds the merge base of the three given heads. $ git show-branch master mhf misc shows logs from the top of these three branch heads, up to their common ancestor commit is shown. $ git show-branch --all --more=10 is poor-man's gitk, showing all the tags and heads, and going back 10 commits beyond the merge base of those refs. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-08-09Introduce --pretty=oneline format.Libravatar Junio C Hamano1-0/+1
This introduces --pretty=oneline to git-rev-tree and git-rev-list commands to show only the first line of the commit message, without frills. Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-07-06[PATCH] Add a topological sort procedure to commit.cLibravatar Jon Seymour1-0/+13
This introduces an in-place topological sort procedure to commit.c. Given a list of commits, sort_in_topological_order() will perform an in-place topological sort of that list. The invariant that applies to the resulting list is: a reachable from b => ord(b) < ord(a) This invariant is weaker than the --merge-order invariant, but is cheaper to calculate (assuming the list has been identified) and will serve any purpose where only a minimal topological order guarantee is required. Signed-off-by: Jon Seymour <jon.seymour@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-06Make "insert_by_date()" match "commit_list_insert()"Libravatar Linus Torvalds1-2/+1
Same argument order, same return type. This allows us to use a function pointer to choose one over the other.
2005-06-26Add "--pretty=full" format that also shows committer.Libravatar Linus Torvalds1-1/+3
Also move the common implementation of parsing the --pretty argument format into commit.c rather than having duplicates in diff-tree.c and rev-list.c.
2005-06-08[PATCH] Anal retentive 'const unsigned char *sha1'Libravatar Jason McMullan1-2/+2
Make 'sha1' parameters const where possible Signed-off-by: Jason McMullan <jason.mcmullan@timesys.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-06[PATCH] Modify git-rev-list to linearise the commit history in merge order.Libravatar jon@blackcubes.dyndns.org1-0/+4
This patch linearises the GIT commit history graph into merge order which is defined by invariants specified in Documentation/git-rev-list.txt. The linearisation produced by this patch is superior in an objective sense to that produced by the existing git-rev-list implementation in that the linearisation produced is guaranteed to have the minimum number of discontinuities, where a discontinuity is defined as an adjacent pair of commits in the output list which are not related in a direct child-parent relationship. With this patch a graph like this: a4 --- | \ \ | b4 | |/ | | a3 | | | | | a2 | | | | c3 | | | | | c2 | b3 | | | /| | b2 | | | c1 | | / | b1 a1 | | | a0 | | / root Sorts like this: = a4 | c3 | c2 | c1 ^ b4 | b3 | b2 | b1 ^ a3 | a2 | a1 | a0 = root Instead of this: = a4 | c3 ^ b4 | a3 ^ c2 ^ b3 ^ a2 ^ b2 ^ c1 ^ a1 ^ b1 ^ a0 = root A test script, t/t6000-rev-list.sh, includes a test which demonstrates that the linearisation produced by --merge-order has less discontinuities than the linearisation produced by git-rev-list without the --merge-order flag specified. To see this, do the following: cd t ./t6000-rev-list.sh cd trash cat actual-default-order cat actual-merge-order The existing behaviour of git-rev-list is preserved, by default. To obtain the modified behaviour, specify --merge-order or --merge-order --show-breaks on the command line. This version of the patch has been tested on the git repository and also on the linux-2.6 repository and has reasonable performance on both - ~50-100% slower than the original algorithm. This version of the patch has incorporated a functional equivalent of the Linus' output limiting algorithm into the merge-order algorithm itself. This operates per the notes associated with Linus' commit 337cb3fb8da45f10fe9a0c3cf571600f55ead2ce. This version has incorporated Linus' feedback regarding proposed changes to rev-list.c. (see: [PATCH] Factor out filtering in rev-list.c) This version has improved the way sort_first_epoch marks commits as uninteresting. For more details about this change, refer to Documentation/git-rev-list.txt and http://blackcubes.dyndns.org/epoch/. Signed-off-by: Jon Seymour <jon.seymour@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-05pretty_print_commit: add different formatsLibravatar Linus Torvalds1-1/+9
You can ask to print out "raw" format (full headers, full body), "medium" format (author and date, full body) or "short" format (author only, condensed body). Use "git-rev-list --pretty=short HEAD | less -S" for an example.
2005-06-01Add generic commit "pretty print" function.Libravatar Linus Torvalds1-0/+3
It's really just the header printign function from diff-tree.c, and it's usable for other things too.
2005-05-30commit_list_insert: return the new commit list entryLibravatar Linus Torvalds1-1/+1
This is useful for when we want to insert the next one after this new one, for example.
2005-05-25Make "parse_object()" also fill in commit message buffer data.Libravatar Linus Torvalds1-1/+1
And teach fsck to free it to save memory.
2005-05-25commit: save the commit buffer off when parsing a commitLibravatar Linus Torvalds1-0/+1
object. A fair number of the users potentially want to look at the commit objects more closely, and if you worry about memory leaking in certain applications, you can always do a free(commit->buffer); commit->buffer = NULL; by hand after parsing them.
2005-05-18commit: add "lookup_commit_reference()" helper functionLibravatar Linus Torvalds1-0/+1
It's pretty much the same as "lookup_commit()", but it will take tags too, and look up the commit (if any) associated with them.
2005-05-06[PATCH] don't load and decompress objects twice with parse_object()Libravatar Nicolas Pitre1-0/+2
It turns out that parse_object() is loading and decompressing given object to free it just before calling the specific object parsing function which does mmap and decompress the same object again. This patch introduces the ability to parse specific objects directly from a memory buffer. Without this patch, running git-fsck-cache on the kernel repositorytake: real 0m13.006s user 0m11.421s sys 0m1.218s With this patch applied: real 0m8.060s user 0m7.071s sys 0m0.710s The performance increase is significant, and this is kind of a prerequisite for sane delta object support with fsck. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-23[PATCH] Allow multiple date-ordered listsLibravatar Daniel Barkalow1-1/+2
Make pop_most_recent_commit() return the same objects multiple times, but only if called with different bits to mark. This is necessary to make merge-base work again. Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-23[PATCH] Add some functions for commit listsLibravatar Daniel Barkalow1-0/+9
This adds a function for inserting an item in a commit list, a function for sorting a commit list by date, and a function for progressively scanning a commit history from most recent to least recent. Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-18[PATCH] Header files for object parsingLibravatar Daniel Barkalow1-0/+27
This adds the structs and function declarations for parsing git objects. Signed-Off-By: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>