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2010-02-13builtin-notes: Add "prune" subcommand for removing notes for missing objectsLibravatar Johan Herland3-11/+115
"git notes prune" will remove all notes that annotate unreachable/non- existing objects. The patch includes tests verifying correct behaviour of the new subcommand. Suggested-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: prune_notes(): Prune notes that belong to non-existing objectsLibravatar Johan Herland2-0/+51
When an object is made unreachable by Git, any notes that annotate that object are not automagically made unreachable, since all notes are always trivially reachable from a notes ref. In order to remove notes for non-existing objects, we therefore need to add functionality for traversing the notes tree and explicitly removing references to notes that annotate non-reachable objects. Thus the notes objects themselves also become unreachable, and are removed by a later garbage collect. prune_notes() performs this traversal (by using for_each_note() internally), and removes the notes in question from the notes tree. Note that the effect of prune_notes() is not persistent unless a subsequent call to write_notes_tree() is made. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13t3305: Verify that removing notes triggers automatic fanout consolidationLibravatar Johan Herland1-1/+46
Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13builtin-notes: Add "remove" subcommand for removing existing notesLibravatar Johan Herland3-34/+73
Using "git notes remove" is equivalent to specifying an empty note message. The patch includes tests verifying correct behaviour of the new subcommand. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Teach builtin-notes to remove empty notesLibravatar Johan Herland2-4/+42
When the result of editing a note is an empty string, the associated note entry should be deleted from the notes tree. This allows deleting notes by invoking either "git notes -m ''" or "git notes -F /dev/null". Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Teach notes code to properly preserve non-notes in the notes treeLibravatar Johan Herland4-51/+233
The note tree structure allows for non-note entries to coexist with note entries in a notes tree. Although we certainly expect there to be very few non-notes in a notes tree, we should still support them to a certain degree. This patch teaches the notes code to preserve non-notes when updating the notes tree with write_notes_tree(). Non-notes are not affected by fanout restructuring. For non-notes to be handled correctly, we can no longer allow subtree entries that do not match the fanout structure produced by the notes code itself. This means that fanouts like 4/36, 6/34, 8/32, 4/4/32, etc. are no longer recognized as note subtrees; only 2-based fanouts are allowed (2/38, 2/2/36, 2/2/2/34, etc.). Since the notes code has never at any point _produced_ non-2-based fanouts, it is highly unlikely that this change will cause problems for anyone. The patch also adds some tests verifying the correct handling of non-notes in a notes tree. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13t3305: Verify that adding many notes with git-notes triggers increased fanoutLibravatar Johan Herland1-0/+50
Add a test verifying that the notes code automatically restructures the notes tree into a deeper fanout level, when many notes are added with "git notes". Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13t3301: Verify successful annotation of non-commitsLibravatar Johan Herland1-0/+17
Adds a testcase verifying that git-notes works successfully on tree, blob, and tag objects. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Builtin-ify git-notesLibravatar Johan Herland7-40/+350
The builtin-ification includes some minor behavioural changes to the command-line interface: It is no longer allowed to mix the -m and -F arguments, and it is not allowed to use multiple -F options. As part of the builtin-ification, we add the commit_notes() function to the builtin API. This function (together with the notes.h API) can be easily used from other builtins to manipulate the notes tree. Also includes needed changes to t3301. This patch has been improved by the following contributions: - Stephen Boyd: Use die() instead of fprintf(stderr, ...) followed by exit(1) Cc: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Refactor notes concatenation into a flexible interface for combining notesLibravatar Johan Herland2-60/+112
When adding a note to an object that already has an existing note, the current solution is to concatenate the contents of the two notes. However, the caller may instead wish to _overwrite_ the existing note with the new note, or maybe even _ignore_ the new note, and keep the existing one. There might also be other ways of combining notes that are only known to the caller. Therefore, instead of unconditionally concatenating notes, we let the caller specify how to combine notes, by passing in a pointer to a function for combining notes. The caller may choose to implement its own function for notes combining, but normally one of the following three conveniently supplied notes combination functions will be sufficient: - combine_notes_concatenate() combines the two notes by appending the contents of the new note to the contents of the existing note. - combine_notes_overwrite() replaces the existing note with the new note. - combine_notes_ignore() keeps the existing note, and ignores the new note. A combine_notes function can be passed to init_notes() to choose a default combine_notes function for that notes tree. If NULL is given, the notes tree falls back to combine_notes_concatenate() as the ultimate default. A combine_notes function can also be passed directly to add_note(), to control the notes combining behaviour for a note addition in particular. If NULL is passed, the combine_notes function registered for the given notes tree is used. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: Allow multiple concurrent notes trees with new struct notes_treeLibravatar Johan Herland3-66/+112
The new struct notes_tree encapsulates access to a specific notes tree. It is provided to allow callers to make use of several different notes trees simultaneously. A struct notes_tree * parameter is added to every function in the notes API. In all cases, NULL can be passed, in which case the fallback "default" notes tree (default_notes_tree) is used. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: write_notes_tree(): Store the notes tree in the databaseLibravatar Johan Herland2-3/+180
Uses for_each_note() to traverse the notes tree, and produces tree objects on the fly representing the "on-disk" version of the notes tree with appropriate fanout. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: for_each_note(): Traverse the entire notes tree with a callbackLibravatar Johan Herland2-0/+180
This includes a first attempt at creating an optimal fanout scheme (which is calculated on-the-fly, while traversing). Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: get_note(): Return the note annotating the given objectLibravatar Johan Herland2-7/+15
Created by a simple cleanup and rename of lookup_notes(). Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: remove_note(): Remove note objects from the notes tree structureLibravatar Johan Herland2-1/+87
This includes adding internal functions for maintaining a healthy notes tree structure after removing individual notes. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: add_note(): Add note objects to the internal notes tree structureLibravatar Johan Herland2-0/+15
Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: init_notes(): Initialize the notes tree from the given notes refLibravatar Johan Herland2-12/+38
Created by a simple refactoring of initialize_notes(). Also add a new 'flags' parameter, which is a bitwise combination of notes initialization flags. For now, there is only one flag - NOTES_INIT_EMPTY - which indicates that the notes tree should not auto-load the contents of the given (or default) notes ref, but rather should leave the notes tree initialized to an empty state. This will become useful in the future when manipulating the notes tree through the notes API. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Add tests for checking correct handling of $GIT_NOTES_REF and core.notesRefLibravatar Johan Herland1-0/+48
Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Notes API: get_commit_notes() -> format_note() + remove the commit restrictionLibravatar Johan Herland3-22/+30
There is really no reason why only commit objects can be annotated. By changing the struct commit parameter to get_commit_notes() into a sha1 we gain the ability to annotate any object type. To reflect this in the function naming as well, we rename get_commit_notes() to format_note(). This patch also fixes comments and variable names throughout notes.c as a consequence of the removal of the unnecessary 'commit' restriction. Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-13Minor cosmetic fixes to notes.cLibravatar Johan Herland1-5/+4
Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22Merge branch 'jc/maint-limit-note-output'Libravatar Junio C Hamano8-1/+85
* jc/maint-limit-note-output: Fix "log --oneline" not to show notes Fix "log" family not to be too agressive about showing notes
2010-01-22Merge branch 'nd/ls-files-sparse-fix'Libravatar Junio C Hamano1-3/+13
* nd/ls-files-sparse-fix: Fix memory corruption when .gitignore does not end by \n
2010-01-22Make difftool.prompt fall back to mergetool.promptLibravatar Sebastian Schuberth1-1/+2
The documentation states that "git-difftool falls back to git-mergetool config variables when the difftool equivalents have not been defined". Until now, this was not the case for "difftool.prompt". Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com> Acked-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22engine.pl: Fix a recent breakage of the buildsystem generatorLibravatar Ramsay Jones1-3/+5
Commit ade2ca0c (Do not try to remove directories when removing old links, 2009-10-27) added an expression to a 'test' using an '-o' or connective. This resulted in the buildsystem generator mistaking a conditional 'rm' for a linker command. In order to fix the breakage, we filter out all 'test' commands before then attempting to identify the commands of interest. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Acked-by: Sebastian Schuberth <sschuberth@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22git-mv: fix moving more than one source to a single destinationLibravatar Junio C Hamano2-4/+19
The code used as if return value from basename(3) were stable, but often the function is implemented to return a pointer to a static storage internal to it. Because basename(3) is also allowed to modify its input parameter in place, casting constness away from the strings we obtained from the caller and giving them to basename is a no-no. Reported, and initial fix and test supplied by David Rydh. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22rebase -i: Enclose sed command substitution in quotesLibravatar Michael Haggerty1-1/+1
Reported by: Johannes Sixt <j.sixt@viscovery.net> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22rebase -i: Avoid non-portable "test X -a Y"Libravatar Michael Haggerty1-1/+1
Reported by: Eric Blake <ebb9@byu.net> Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22make "index-pack" a built-inLibravatar Linus Torvalds7-15/+16
This required some fairly trivial packfile function 'const' cleanup, since the builtin commands get a const char *argv[] array. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22make "git pack-redundant" a built-inLibravatar Linus Torvalds4-7/+5
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22make "git unpack-file" a built-inLibravatar Linus Torvalds4-5/+4
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22make "mktag" a built-inLibravatar Linus Torvalds4-6/+4
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22make "merge-index" a built-inLibravatar Linus Torvalds4-6/+5
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-22merge-tree: remove unnecessary call of git_extract_argv0_pathLibravatar Johannes Sixt1-2/+0
This call should have been removed when the utility was made a builtin by 907a7cb. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21make "git patch-id" a built-inLibravatar Linus Torvalds4-4/+4
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21make "git var" a built-inLibravatar Linus Torvalds4-4/+4
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21fix git-p4 editor invocationLibravatar Nicolas Pitre1-1/+1
The strip() is required to remove the trailing newline character, as already done elsewhere. Signed-off-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21Merge branch 'maint'Libravatar Junio C Hamano2-6/+20
* maint: merge-recursive: do not return NULL only to cause segfault retry request without query when info/refs?query fails
2010-01-21make "git hash-object" a built-inLibravatar Linus Torvalds4-5/+4
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21make "git merge-tree" a built-inLibravatar Linus Torvalds4-4/+4
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21slim down "git show-index"Libravatar Linus Torvalds4-67/+69
As the documentation says, this is primarily for debugging, and in the longer term we should rename it to test-show-index or something. In the meantime, just avoid xmalloc (which slurps in the rest of git), and separating out the trivial hex functions into "hex.o". This results in [torvalds@nehalem git]$ size git-show-index text data bss dec hex filename 222818 2276 112688 337782 52776 git-show-index (before) 5696 624 1264 7584 1da0 git-show-index (after) which is a whole lot better. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21Remove diff machinery dependency from read-cacheLibravatar Linus Torvalds2-78/+76
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: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21merge-recursive: do not return NULL only to cause segfaultLibravatar Junio C Hamano1-4/+4
merge-recursive calls write_tree_from_memory() to come up with a virtual tree, with possible conflict markers inside the blob contents, while merging multiple common ancestors down. It is a bug to call the function with unmerged entries in the index, even if the merge to come up with the common ancestor resulted in conflicts. Otherwise the result won't be expressible as a tree object. We _might_ want to suggest the user to set GIT_MERGE_VERBOSITY to 5 and re-run the merge in the message. At least we will know which part of process_renames() or process_entry() functions is not correctly handling the unmerged paths, and it might help us diagnosing the issue. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21git-rebase.txt: Fix spellingLibravatar Horst H. von Brand1-1/+1
Signed-off-by: Horst H. von Brand <vonbrand@inf.utfsm.cl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21retry request without query when info/refs?query failsLibravatar Tay Ray Chuan1-2/+16
When "info/refs" is a static file and not behind a CGI handler, some servers may not handle a GET request for it with a query string appended (eg. "?foo=bar") properly. If such a request fails, retry it sans the query string. In addition, ensure that the "smart" http protocol is not used (a service has to be specified with "?service=<service name>" to be conformant). Signed-off-by: Tay Ray Chuan <rctay89@gmail.com> Reported-and-tested-by: Yaroslav Halchenko <debian@onerussian.com> Acked-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21Fix "log --oneline" not to show notesLibravatar Junio C Hamano3-4/+7
This option should be treated pretty much the same as --format="%h %s". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21Make 'rerere forget' work from a subdirectory.Libravatar Johannes Sixt2-24/+53
It forgot to apply the prefix to the paths given on the command line. [jc: added test] Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-21Make test case numbers uniqueLibravatar Johannes Sixt2-0/+0
Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-20conflict-marker-size: add test and docsLibravatar Junio C Hamano2-0/+29
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-20Update draft release notes to 1.7.0Libravatar Junio C Hamano1-1/+45
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-20Merge branch 'bw/cvsimport'Libravatar Junio C Hamano1-35/+35
* bw/cvsimport: cvsimport: standarize system() calls to external git tools cvsimport: standarize open() calls to external git tools cvsimport: modernize callouts to git subcommands