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2008-09-04log --author/--committer: really match only with name partLibravatar Junio C Hamano1-17/+4
When we tried to find commits done by AUTHOR, the first implementation tried to pattern match a line with "^author .*AUTHOR", which later was enhanced to strip leading caret and look for "^author AUTHOR" when the search pattern was anchored at the left end (i.e. --author="^AUTHOR"). This had a few problems: * When looking for fixed strings (e.g. "git log -F --author=x --grep=y"), the regexp internally used "^author .*x" would never match anything; * To match at the end (e.g. "git log --author='google.com>$'"), the generated regexp has to also match the trailing timestamp part the commit header lines have. Also, in order to determine if the '$' at the end means "match at the end of the line" or just a literal dollar sign (probably backslash-quoted), we would need to parse the regexp ourselves. An earlier alternative tried to make sure that a line matches "^author " (to limit by field name) and the user supplied pattern at the same time. While it solved the -F problem by introducing a special override for matching the "^author ", it did not solve the trailing timestamp nor tail match problem. It also would have matched every commit if --author=author was asked for, not because the author's email part had this string, but because every commit header line that talks about the author begins with that field name, regardleses of who wrote it. Instead of piling more hacks on top of hacks, this rethinks the grep machinery that is used to look for strings in the commit header, and makes sure that (1) field name matches literally at the beginning of the line, followed by a SP, and (2) the user supplied pattern is matched against the remainder of the line, excluding the trailing timestamp data. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-24Fix "git log -i --grep"Libravatar Jeff King1-22/+12
This has been broken in v1.6.0 due to the reorganization of the revision option parsing code. The "-i" is completely ignored, but works fine in "git log --grep -i". What happens is that the code for "-i" looks for revs->grep_filter; if it is NULL, we do nothing, since there are no grep filters. But that is obviously not correct, since we want it to influence the later --grep option. Doing it the other way around works, since "-i" just impacts the existing grep_filter option. Instead, we now always initialize the grep_filter member and just fill in options and patterns as we get them. This means that we can no longer check grep_filter for NULL, but instead must check the pattern list to see if we have any actual patterns. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-31Allow "non-option" revision options in parse_option-enabled commandsLibravatar Pierre Habouzit1-1/+1
Commands which use parse_options() but also call setup_revisions() must do their parsing in a two step process: 1. first, they parse all options. Anything unknown goes to parse_revision_opt() (which calls handle_revision_opt), which may claim the option or say "I don't recognize this" 2. the non-option remainder goes to setup_revisions() to actually get turned into revisions Some revision options are "non-options" in that they must be parsed in order with their revision counterparts in setup_revisions(). For example, "--all" functions as a pseudo-option expanding to all refs, and "--no-walk" affects refs after it on the command line, but not before. The revision option parser in step 1 recognizes such options and sets them aside for later parsing by setup_revisions(). However, the return value used from handle_revision_opt indicated "I didn't recognize this", which was wrong. It did, and it took appropriate action (even though that action was just deferring it for later parsing). Thus it should return "yes, I recognized this." Previously, these pseudo-options generated an error when used with parse_options parsers (currently just blame and shortlog). With this patch, they should work fine, enabling things like "git shortlog --all". Signed-off-by: Jeff King <peff@peff.net> Acked-By: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-16Merge branch 'maint'Libravatar Junio C Hamano1-2/+2
* maint: Start preparing 1.5.6.4 release notes git fetch-pack: do not complain about "no common commits" in an empty repo rebase-i: keep old parents when preserving merges t7600-merge: Use test_expect_failure to test option parsing Fix buffer overflow in prepare_attr_stack Fix buffer overflow in git diff Fix buffer overflow in git-grep git-cvsserver: fix call to nonexistant cleanupWorkDir() Documentation/git-cherry-pick.txt et al.: Fix misleading -n description Conflicts: RelNotes
2008-07-16Fix buffer overflow in git diffLibravatar Dmitry Potapov1-2/+2
If PATH_MAX on your system is smaller than a path stored, it may cause buffer overflow and stack corruption in diff_addremove() and diff_change() functions when running git-diff Signed-off-by: Dmitry Potapov <dpotapov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-15Merge branch 'ag/rewrite_one'Libravatar Junio C Hamano1-6/+24
* ag/rewrite_one: Fix quadratic performance in rewrite_one.
2008-07-13Merge branch 'ph/parseopt-step-blame'Libravatar Junio C Hamano1-323/+268
* ph/parseopt-step-blame: revisions: refactor handle_revision_opt into parse_revision_opt. git-shortlog: migrate to parse-options partially. git-blame: fix lapsus git-blame: migrate to incremental parse-option [2/2] git-blame: migrate to incremental parse-option [1/2] revisions: split handle_revision_opt() from setup_revisions() parse-opt: add PARSE_OPT_KEEP_ARGV0 parser option. parse-opt: fake short strings for callers to believe in. parse-opt: do not print errors on unknown options, return -2 intead. parse-opt: create parse_options_step. parse-opt: Export a non NORETURN usage dumper. parse-opt: have parse_options_{start,end}. git-blame --reverse builtin-blame.c: allow more than 16 parents builtin-blame.c: move prepare_final() into a separate function. rev-list --children revision traversal: --children option
2008-07-13Fix quadratic performance in rewrite_one.Libravatar Alexander N. Gavrilov1-6/+24
Parent commits are usually older than their children. Thus, on each iteration of the loop in rewrite_one, add_parents_to_list traverses all commits previously processed by the loop. It performs very poorly in case of very long rewrite chains. Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-09revisions: refactor handle_revision_opt into parse_revision_opt.Libravatar Pierre Habouzit1-2/+16
It seems we're using handle_revision_opt the same way each time, have a wrapper around it that does the 9-liner we copy each time instead. handle_revision_opt can be static in the module for now, it's always possible to make it public again if needed. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-08revisions: split handle_revision_opt() from setup_revisions()Libravatar Pierre Habouzit1-326/+222
Add two fields to struct rev_info: - .def to store --default argument; and - .show_merge 1-bit field. handle_revision_opt() is able to deal with any revision option, and consumes them, and leaves revision arguments or pseudo arguments (like --all, --not, ...) in place. For now setup_revisions() does a pass of handle_revision_opt() again so that code not using it in a parse-opt parser still work the same. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-08Merge branch 'jc/blame' (early part) into HEADLibravatar Junio C Hamano1-2/+37
* 'jc/blame' (early part): git-blame --reverse builtin-blame.c: allow more than 16 parents builtin-blame.c: move prepare_final() into a separate function. rev-list --children revision traversal: --children option Conflicts: Documentation/rev-list-options.txt revision.c
2008-07-05Move read_revisions_from_stdin from builtin-rev-list.c to revision.cLibravatar Adam Brewster1-0/+17
Reading rev-list parameters from the command line can be reused by commands other than rev-list. Move this function to more "library-ish" place to promote code reuse. Signed-off-by: Adam Brewster <asb@bu.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-25log --pretty: do not accept bogus "--prettyshort"Libravatar Junio C Hamano1-1/+6
... nor bogus "format.pretty = '=short'". Both are syntax errors. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-25log --graph: do not accept log --graphbogusLibravatar Junio C Hamano1-1/+1
An obvious fix to the argument parser. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-25get_revision(): honor the topo_order flag for boundary commitsLibravatar Adam Simpkins1-16/+57
Now get_revision() sorts the boundary commits when topo_order is set. Since sort_in_topological_order() takes a struct commit_list, it first places the boundary commits into revs->commits. Signed-off-by: Adam Simpkins <adam@adamsimpkins.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-25Fix output of "git log --graph --boundary"Libravatar Adam Simpkins1-1/+1
Previously the graphing API wasn't aware of the revs->boundary flag, and it always assumed that commits marked UNINTERESTING would not be displayed. As a result, the boundary commits were printed at the end of the log output, but they didn't have any branch lines connecting them to their children in the graph. There was also another bug in the get_revision() code that caused graph_update() to be called twice on the first boundary commit. This caused the graph API to think that a commit had been skipped, and print a "..." line in the output. Signed-off-by: Adam Simpkins <adam@adamsimpkins.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-25log --graph --left-right: show left/right information in place of '*'Libravatar Adam Simpkins1-1/+1
With the --graph option, the graph already outputs 'o' instead of '*' for boundary commits. Make it emit '<' or '>' when --left-right is specified. (This change also disables the '^' prefix for UNINTERESTING commits. The graph code currently doesn't print anything special for these commits, since it assumes no UNINTERESTING, non-BOUNDARY commits are displayed. This is potentially a bug if UNINTERESTING non-BOUNDARY commits can actually be displayed via some code path.) [jc: squashed the left-right change from Dscho and Adam's fixup into one] Signed-off-by: Adam Simpkins <adam@adamsimpkins.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-21Merge branch 'sv/first-parent'Libravatar Junio C Hamano1-8/+6
* sv/first-parent: revision.c: really honor --first-parent Simplify and fix --first-parent implementation
2008-05-12revision.c: really honor --first-parentLibravatar Lars Hjemli1-4/+4
In add_parents_to_list, if any parent of a revision had already been SEEN, the current code would continue with the next parent, skipping the test for --first-parent. This patch inverts the test for SEEN so that the test for --first-parent is always performed. Signed-off-by: Lars Hjemli <hjemli@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-05log and rev-list: add --graph optionLibravatar Adam Simpkins1-1/+25
This new option causes a text-based representation of the history to be printed to the left of the normal output. Signed-off-by: Adam Simpkins <adam@adamsimpkins.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-05revision API: split parent rewriting and parent printing optionsLibravatar Adam Simpkins1-3/+4
This change allows parent rewriting to be performed without causing the log and rev-list commands to print the parents. Signed-off-by: Adam Simpkins <adam@adamsimpkins.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-29Simplify and fix --first-parent implementationLibravatar Stephen R. van den Berg1-6/+4
The purpose of --first-parent is to view the tree without looking at side branche. This is accomplished by pretending there are no other parents than the first parent when encountering a merge. The current code marks the other parents as seen, which means that the tree traversal will behave differently depending on the order merges are handled. When a fast forward is artificially recorded as a merge, ----- / \ D---E---F---G master the current first-parent code considers E to be seen and stops the traversal after showing G and F. Signed-off-by: Stephen R. van den Berg <srb@cuci.nl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-19Merge branch 'jc/terminator-separator'Libravatar Junio C Hamano1-1/+1
* jc/terminator-separator: log: teach "terminator" vs "separator" mode to "--pretty=format"
2008-04-12revision traversal: --children optionLibravatar Junio C Hamano1-3/+37
This adds a new --children option to the revision machinery. In addition to the list of parents, child commits of each commit are computed and stored as a decoration to each commit. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-11Merge branch 'maint-1.5.4' into maintLibravatar Junio C Hamano1-0/+1
* maint-1.5.4: bisect: fix bad rev checking in "git bisect good" revision.c: make --date-order overriddable Fix section about backdating tags in the git-tag docs Document option --only of git commit Documentation/git-request-pull: Fixed a typo ("send" -> "end")
2008-04-11revision.c: make --date-order overriddableLibravatar Michele Ballabio1-0/+1
Jan Engelhardt noticed that while --topo-order can be overridden by a subsequent --date-order, the reverse was not possible. That's because setup_revisions() failed to set revs->lifo properly. Signed-off-by: Michele Ballabio <barra_cuda@katamail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-04-10log: teach "terminator" vs "separator" mode to "--pretty=format"Libravatar Junio C Hamano1-1/+1
This attached patch introduces a single bit "use_terminator" in "struct rev_info", which is normally false (i.e. most formats use separator semantics) but by flipping it to true, you can ask for terminator semantics just like oneline format does. The function get_commit_format(), which is what parses "--pretty=" option, now takes a pointer to "struct rev_info" and updates its commit_format and use_terminator fields. It used to return the value of type "enum cmit_fmt", but all the callers assigned it to rev->commit_format. There are only two cases the code turns use_terminator on. Obviously, the traditional oneline format (--pretty=oneline) is one of them, and the new case is --pretty=tformat:... that acts like --pretty=format:... but flips the bit on. With this, "--pretty=tformat:%H %s" acts like --pretty=oneline. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-19Make revision limiting more robust against occasional bad commit datesLibravatar Linus Torvalds1-10/+38
The revision limiter uses the commit date to decide when it has seen enough commits to finalize the revision list, but that can get confused if there are incorrect dates far in the past on some commits. This makes the logic a bit more robust by - we always walk an extra SLOP commits from the source list even if we decide that the source list is probably all done (unless the source is entirely empty, of course, because then we really can't do anything at all) - we keep track of the date of the last commit we added to the destination list (this will *generally* be the oldest entry we've seen so far) - we compare that with the youngest entry (the first one) of the source list, and if the destination is older than the source, we know we want to look at the source. which causes occasional date mishaps to be handled cleanly. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-02Merge branch 'jc/maint-log-merge-left-right'Libravatar Junio C Hamano1-8/+4
* jc/maint-log-merge-left-right: Fix "git log --merge --left-right"
2008-02-29rev-list: add --branches, --tags and --remotesLibravatar Uwe Kleine-König1-3/+16
These flags are already known to rev-parse and have the same meaning. This patch allows to run gitk as follows: gitk --branches --not --remotes to show only your local work. Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-27Fix "git log --merge --left-right"Libravatar Junio C Hamano1-8/+4
The command did not reject the combination of these options, but did not show left/right markers. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-27Merge branch 'jc/diff-relative'Libravatar Junio C Hamano1-0/+4
* jc/diff-relative: diff --relative: help working in a bare repository diff --relative: output paths as relative to the current subdirectory
2008-02-26Add '--fixed-strings' option to "git log --grep" and friendsLibravatar Jakub Narebski1-1/+9
Add support for -F | --fixed-strings option to "git log --grep" and friends: "git log --author", "git log --committer=<pattern>". Code is based on implementation of this option in "git grep". Signed-off-by: Jakub Narebski <jnareb@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-20Merge branch 'lt/revision-walker'Libravatar Junio C Hamano1-2/+18
* lt/revision-walker: Add "--show-all" revision walker flag for debugging
2008-02-18revision.c: handle tag->tagged == NULLLibravatar Martin Koegler1-0/+4
Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-18mark_blob/tree_uninteresting: check for NULLLibravatar Martin Koegler1-0/+4
As these functions are directly called with the result from lookup_tree/blob, they must handle NULL. Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-13Add "--show-all" revision walker flag for debuggingLibravatar Linus Torvalds1-2/+18
It's really not very easy to visualize the commit walker, because - on purpose - it obvously doesn't show the uninteresting commits! This adds a "--show-all" flag to the revision walker, which will make it show uninteresting commits too, and they'll have a '^' in front of them (it also fixes a logic error for !verbose_header for boundary commits - we should show the '-' even if left_right isn't shown). A separate patch to gitk to teach it the new '^' was sent to paulus. With the change in place, it actually is interesting even for the cases that git doesn't have any problems with, ie for the kernel you can do: gitk -d --show-all v2.6.24.. and you see just how far down it has to parse things to see it all. The use of "-d" is a good idea, since the date-ordered toposort is much better at showing why it goes deep down (ie the date of some of those commits after 2.6.24 is much older, because they were merged from trees that weren't rebased). So I think this is a useful feature even for non-debugging - just to visualize what git does internally more. When it actually breaks out due to the "everybody_uninteresting()" case, it adds the uninteresting commits (both the one it's looking at now, and the list of pending ones) to the list This way, we really list *all* the commits we've looked at. Because we now end up listing commits we may not even have been parsed at all "show_log" and "show_commit" need to protect against commits that don't have a commit buffer entry. That second part is debatable just how it should work. Maybe we shouldn't show such entries at all (with this patch those entries do get shown, they just don't get any message shown with them). But I think this is a useful case. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-13diff --relative: help working in a bare repositoryLibravatar Junio C Hamano1-1/+1
This allows the --relative option to say which subdirectory to pretend to be in, so that in a bare repository, you can say: $ git log --relative=drivers/ v2.6.20..v2.6.22 -- drivers/scsi/ Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-13diff --relative: output paths as relative to the current subdirectoryLibravatar Junio C Hamano1-0/+4
This adds --relative option to the diff family. When you start from a subdirectory: $ git diff --relative shows only the diff that is inside your current subdirectory, and without $prefix part. People who usually live in subdirectories may like it. There are a few things I should also mention about the change: - This works not just with diff but also works with the log family of commands, but the history pruning is not affected. In other words, if you go to a subdirectory, you can say: $ git log --relative -p but it will show the log message even for commits that do not touch the current directory. You can limit it by giving pathspec yourself: $ git log --relative -p . This originally was not a conscious design choice, but we have a way to affect diff pathspec and pruning pathspec independently. IOW "git log --full-diff -p ." tells it to prune history to commits that affect the current subdirectory but show the changes with full context. I think it makes more sense to leave pruning independent from --relative than the obvious alternative of always pruning with the current subdirectory, which would break the symmetry. - Because this works also with the log family, you could format-patch a single change, limiting the effect to your subdirectory, like so: $ cd gitk-git $ git format-patch -1 --relative 911f1eb But because that is a special purpose usage, this option will never become the default, with or without repository or user preference configuration. The risk of producing a partial patch and sending it out by mistake is too great if we did so. - This is inherently incompatible with --no-index, which is a bolted-on hack that does not have much to do with git itself. I didn't bother checking and erroring out on the combined use of the options, but probably I should. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-26Fix "git log --diff-filter" bugLibravatar Arjen Laarhoven1-2/+4
In commit b7bb760d5ed4881422673d32f869d140221d3564 (Fix revision log diff setup, avoid unnecessary diff generation) an optimization was made to avoid unnecessary diff generation. This was partly fixed in 99516e35d096f41e7133cacde8fbed8ee9a3ecd0 (Fix embarrassing "git log --follow" bug). The '--diff-filter' option also needs the diff machinery in action. Signed-off-by: Arjen Laarhoven <arjen@yaph.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-11shortlog: default to HEAD when the standard input is a ttyLibravatar Junio C Hamano1-0/+12
Instead of warning the user that it is expecting git log output from the standard input (and waiting for the user to type the log from the keyboard, which is a silly thing to do), default to traverse from HEAD when there is no rev parameter given and the standard input is a tty. This factors out a useful helper "add_head()" from builtin-diff.c to a more appropriate place revision.c while renaming it to more descriptive name add_head_to_pending(), as that is what the function is about. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-18Merge branch 'lt/rev-list-gitlink'Libravatar Junio C Hamano1-2/+9
* lt/rev-list-gitlink: Fix rev-list when showing objects involving submodules
2007-11-18Merge branch 'lt/rev-list-interactive'Libravatar Junio C Hamano1-43/+82
* lt/rev-list-interactive: Fix parent rewriting in --early-output revision walker: mini clean-up Enhance --early-output format Add "--early-output" log flag for interactive GUI use Simplify topo-sort logic
2007-11-14Fix parent rewriting in --early-outputLibravatar Linus Torvalds1-11/+11
We cannot tell a node that has been checked and found not to be interesting (which does not have the TREECHANGE flag) from a node that hasn't been checked if it is interesting or not, without relying on something else, such as object->parsed. But an object can get the "parsed" flag for other reasons. Which means that "TREECHANGE" has the wrong polarity. This changes the way how the path pruning logic marks an uninteresting commits. From now on, we consider a commit interesting by default, and explicitly mark the ones we decided to prune. The flag is renamed to "TREESAME". Then, this fixes the logic to show the early output with incomplete pruning. It basically says "a commit that has TREESAME set is kind-of-UNINTERESTING", but obviously in a different way than an outright UNINTERESTING commit. Until we parse and examine enough parents to determine if a commit becomes surely "kind-of-UNINTERESTING", we avoid rewriting the ancestry so that later rounds can fix things up. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-14Fix rev-list when showing objects involving submodulesLibravatar Linus Torvalds1-2/+9
The function mark_tree_uninteresting() assumed that the tree entries are blob when they are not trees. This is not so. Since we do not traverse into submodules (yet), the gitlinks should be ignored. In general, we should try to start moving away from using the "S_ISLNK()" like things for internal git state. It was a mistake to just assume the numbers all were same across all systems in the first place. This implementation converts to the "object_type", and then uses a case statement. Noticed by Ilari on IRC. Test script taken from an earlier version by Dscho. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-11Make the diff_options bitfields be an unsigned with explicit masks.Libravatar Pierre Habouzit1-11/+11
reverse_diff was a bit-value in disguise, it's merged in the flags now. Signed-off-by: Pierre Habouzit <madcoder@debian.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-05revision walker: mini clean-upLibravatar Linus Torvalds1-7/+20
This removes the unnecessary indirection of "revs->prune_fn", since that function is always the same one (or NULL), and there is in fact not even an abstraction reason to make it a function (i.e. its not called from some other file and doesn't allow us to keep the function itself static or anything like that). It then just replaces it with a bit that says "prune or not", and if not pruning, every commit gets TREECHANGE. That in turn means that - if (!revs->prune_fn || (flags & TREECHANGE)) - if (revs->prune_fn && !(flags & TREECHANGE)) just become - if (flags & TREECHANGE) - if (!(flags & TREECHANGE)) respectively. Together with adding the "single_parent()" helper function, the "complex" conditional now becomes if (!(flags & TREECHANGE) && rev->dense && single_parent(commit)) continue; Also indirection of "revs->dense" checking is thrown away the same way, because TREECHANGE bit is set appropriately now. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-05Enhance --early-output formatLibravatar Linus Torvalds1-27/+36
This makes --early-output a bit more advanced, and actually makes it generate multiple "Final output:" headers as it updates things asynchronously. I realize that the "Final output:" line is now illogical, since it's not really final until it also says "done", but It now _always_ generates a "Final output:" header in front of any commit list, and that output header gives you a *guess* at the maximum number of commits available. However, it should be noted that the guess can be completely off: I do a reasonable job estimating it, but it is not meant to be exact. So what happens is that you may get output like this: - at 0.1 seconds: Final output: 2 incomplete .. 2 commits listed .. - half a second later: Final output: 33 incomplete .. 33 commits listed .. - another half a second after that: Final output: 71 incomplete .. 71 commits listed .. - another half second later: Final output: 136 incomplete .. 100 commits listed: we hit the --early-output limit, and .. will only output 100 commits, and after this you'll not .. see an "incomplete" report any more since you got as much .. early output as you asked for! - .. and then finally: Final output: 73106 done .. all the commits .. The above is a real-life scenario on my current kernel tree after having flushed all the caches. Tested with the experimental gitk patch that Paul sent out, and by looking at the actual log output (and verifying that my commit count guesses actually match real life fairly well). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-04Add "--early-output" log flag for interactive GUI useLibravatar Linus Torvalds1-0/+22
This adds support for "--early-output[=n]" as a flag to the "git log" family of commands. This allows GUI programs to state that they want to get some output early, in order to be able to show at least something quickly, even if the full output may take longer to generate. If no count is specified, a default count of a hundred commits will be used, although the actual numbr of commits output may be smaller depending on how many commits were actually found in the first tenth of a second (or if *everything* was found before that, in which case no early output will be provided, and only the final list is made available). When the full list is generated, there will be a "Final output:" string prepended to it, regardless of whether any early commits were shown or not, so that the consumer can always know the difference between early output and the final list. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-11-04Simplify topo-sort logicLibravatar Linus Torvalds1-6/+1
.. by not using quite so much indirection. This currently grows the "struct commit" a bit, which could be avoided by using a union for "util" and "indegree" (the topo-sort used to use "util" anyway, so you cannot use them together), but for now the goal of this was to simplify, not optimize. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>