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2009-11-23Merge branch 'jc/log-stdin'Libravatar Junio C Hamano1-7/+0
* jc/log-stdin: Add trivial tests for --stdin option to log family Make --stdin option to "log" family read also pathspecs setup_revisions(): do not call get_pathspec() too early Teach --stdin option to "log" family read_revision_from_stdin(): use strbuf Conflicts: revision.c
2009-11-20Teach --stdin option to "log" familyLibravatar Junio C Hamano1-7/+0
Move the logic to read revs from standard input that rev-list knows about from it to revision machinery, so that all the users of setup_revisions() can feed the list of revs from the standard input when "--stdin" is used on the command line. Allow some users of the revision machinery that want different semantics from the "--stdin" option to disable it by setting an option in the rev_info structure. This also cleans up the kludge made to bundle.c via cut and paste. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-15Merge branch 'lt/revision-bisect'Libravatar Junio C Hamano1-0/+2
* lt/revision-bisect: Add '--bisect' revision machinery argument
2009-10-28Add '--bisect' revision machinery argumentLibravatar Linus Torvalds1-0/+2
I personally use "git bisect visualize" all the time when I bisect, but it turns out that that is not a very flexible model. Sometimes I want to do bisection based on all commits (no pathname limiting), but then visualize the current bisection tree with just a few pathnames because I _suspect_ those pathnames are involved in the problem but am not totally sure about them. And at other times, I want to use other revision parsing logic, none of which is available with "git bisect visualize". So this adds "--bisect" as a revision parsing argument, and as a result it just works with all the normal logging tools. So now I can just do gitk --bisect --simplify-by-decoration filename-here etc. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-19Refactor pretty_print_commit arguments into a structLibravatar Thomas Rast1-3/+4
pretty_print_commit() has a bunch of rarely-used arguments, and introducing more of them requires yet another update of all the call sites. Refactor most of them into a struct to make future extensions easier. The ones that stay "plain" arguments were chosen on the grounds that all callers put real arguments there, whereas some callers have 0/NULL for all arguments that were factored into the struct. We declare the struct 'const' to ensure none of the callers are bitten by the changed (no longer call-by-value) semantics. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-06bisect: add parameters to "filter_skipped"Libravatar Christian Couder1-1/+3
because we will need to get more information from this function in some later patches. The new "int *count" parameter gives the number of commits left after the skipped commit have been filtered out. The new "int *skipped_first" parameter tells us if the first commit in the list has been skipped. Note that using this parameter also changes the behavior of the function if the first commit is indeed skipped. Because we assume that in this case we will want all the filtered commits, not just the first one, even if "show_all" is not set. So using a not NULL "skipped_first" parameter really means that we plan to choose to test another commit than the first non skipped one if the first commit in the list is skipped. That in turn means that, in case the first commit is skipped, we have to return a fully filtered list. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-10rev-list: remove stringed output flag from "show_bisect_vars"Libravatar Christian Couder1-17/+15
Because it was used only by "git bisect--helper --next-vars" but the "--next-vars" option has been removed. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-10rev-list: refactor printing bisect varsLibravatar Christian Couder1-28/+33
This simplifies the code, and while at it we create the "print_commit_list" function that will be reused later. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-10rev-list: make "estimate_bisect_steps" non staticLibravatar Christian Couder1-1/+1
Because it will be used from "bisect.c" too. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-18Merge branch 'lt/pack-object-memuse'Libravatar Junio C Hamano1-10/+12
* lt/pack-object-memuse: show_object(): push path_name() call further down process_{tree,blob}: show objects without buffering Conflicts: builtin-pack-objects.c builtin-rev-list.c list-objects.c list-objects.h upload-pack.c
2009-04-12show_object(): push path_name() call further downLibravatar Linus Torvalds1-3/+5
In particular, pushing the "path_name()" call _into_ the show() function would seem to allow - more clarity into who "owns" the name (ie now when we free the name in the show_object callback, it's because we generated it ourselves by calling path_name()) - not calling path_name() at all, either because we don't care about the name in the first place, or because we are actually happy walking the linked list of "struct name_path *" and the last component. Now, I didn't do that latter optimization, because it would require some more coding, but especially looking at "builtin-pack-objects.c", we really don't even want the whole pathname, we really would be better off with the list of path components. Why? We use that name for two things: - add_preferred_base_object(), which actually _wants_ to traverse the path, and now does it by looking for '/' characters! - for 'name_hash()', which only cares about the last 16 characters of a name, so again, generating the full name seems to be just unnecessary work. Anyway, so I didn't look any closer at those things, but it did convince me that the "show_object()" calling convention was crazy, and we're actually better off doing _less_ in list-objects.c, and giving people access to the internal data structures so that they can decide whether they want to generate a path-name or not. This patch does that, and then for people who did use the name (even if they might do something more clever in the future), it just does the straightforward "name = path_name(path, component); .. free(name);" thing. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-12process_{tree,blob}: show objects without bufferingLibravatar Linus Torvalds1-10/+10
Here's a less trivial thing, and slightly more dubious one. I was looking at that "struct object_array objects", and wondering why we do that. I have honestly totally forgotten. Why not just call the "show()" function as we encounter the objects? Rather than add the objects to the object_array, and then at the very end going through the array and doing a 'show' on all, just do things more incrementally. Now, there are possible downsides to this: - the "buffer using object_array" _can_ in theory result in at least better I-cache usage (two tight loops rather than one more spread out one). I don't think this is a real issue, but in theory.. - this _does_ change the order of the objects printed. Instead of doing a "process_tree(revs, commit->tree, &objects, NULL, "");" in the loop over the commits (which puts all the root trees _first_ in the object list, this patch just adds them to the list of pending objects, and then we'll traverse them in that order (and thus show each root tree object together with the objects we discover under it) I _think_ the new ordering actually makes more sense, but the object ordering is actually a subtle thing when it comes to packing efficiency, so any change in order is going to have implications for packing. Good or bad, I dunno. - There may be some reason why we did it that odd way with the object array, that I have simply forgotten. Anyway, now that we don't buffer up the objects before showing them that may actually result in lower memory usage during that whole traverse_commit_list() phase. This is seriously not very deeply tested. It makes sense to me, it seems to pass all the tests, it looks ok, but... Does anybody remember why we did that "object_array" thing? It used to be an "object_list" a long long time ago, but got changed into the array due to better memory usage patterns (those linked lists of obejcts are horrible from a memory allocation standpoint). But I wonder why we didn't do this back then. Maybe there's a reason for it. Or maybe there _used_ to be a reason, and no longer is. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-07rev-list: add "int bisect_show_flags" in "struct rev_list_info"Libravatar Christian Couder1-7/+4
This is a cleanup patch to make it easier to use the "show_bisect_vars" function and take advantage of the rev_list_info struct. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-07rev-list: remove last static vars used in "show_commit"Libravatar Christian Couder1-21/+21
This patch removes the last static variables that were used in the "show_commit" function. To do that, we create a new "rev_list_info" struct that we will pass in the "void *data" argument to "show_commit". This means that we have to change the first argument to "show_bisect_vars" too. While at it, we also remove a "struct commit_list *list" variable in "cmd_rev_list" that is not really needed. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-07list-objects: add "void *data" parameter to show functionsLibravatar Christian Couder1-33/+35
The goal of this patch is to get rid of the "static struct rev_info revs" static variable in "builtin-rev-list.c". To do that, we need to pass the revs to the "show_commit" function in "builtin-rev-list.c" and this in turn means that the "traverse_commit_list" function in "list-objects.c" must be passed functions pointers to functions with 2 parameters instead of one. So we have to change all the callers and all the functions passed to "traverse_commit_list". Anyway this makes the code more clean and more generic, so it should be a good thing in the long run. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-05bisect--helper: string output variables together with "&&"Libravatar Christian Couder1-10/+19
When doing: eval "git bisect--helper --next-vars" | { while read line do echo "$line &&" done echo ':' } the result code comes from the last "echo ':'", not from running "git bisect--helper --next-vars". This patch gets rid of the need to string together the line from the output of "git bisect--helper" with "&&" in the calling script by making "git bisect--helper --next-vars" return output variables already in that format. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-05rev-list: pass "int flags" as last argument of "show_bisect_vars"Libravatar Christian Couder1-7/+6
Instead of "int show_all, int show_tried" we now only pass "int flags", because we will add one more flag in a later patch. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-05rev-list: call new "filter_skip" functionLibravatar Christian Couder1-5/+25
This patch implements a new "filter_skip" function in C in "bisect.c" that will later replace the existing implementation in shell in "git-bisect.sh". An array is used to store the skipped commits. But the array is not yet fed anything. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-30rev-list: pass "revs" to "show_bisect_vars"Libravatar Christian Couder1-6/+7
instead of using static "revs" data Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-30rev-list: make "show_bisect_vars" non staticLibravatar Christian Couder1-2/+3
and declare it in "bisect.h" as we will use this function later. While at it, rename its last argument "show_all" instead of "bisect_find_all". Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-30rev-list: move code to show bisect vars into its own functionLibravatar Christian Couder1-38/+45
This is a straightforward clean up to make "cmd_rev_list" function smaller. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-30rev-list: move bisect related code into its own fileLibravatar Christian Couder1-387/+1
This patch creates new "bisect.c" and "bisect.h" files and move bisect related code into these files. While at it, we also remove some include directives that are not needed any more from the beginning of "builtin-rev-list.c". Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-30rev-list: make "bisect_list" variable local to "cmd_rev_list"Libravatar Christian Couder1-1/+1
The "bisect_list" variable was static for no reason as it is only used in the "cmd_rev_list" function. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-04rev-list: estimate number of bisection step leftLibravatar Christian Couder1-2/+43
This patch teaches "git rev-list --bisect-vars" to output an estimate of the number of bisection step left _after the current one_ along with the other variables it already outputs. This patch also makes "git-bisect.sh" display this number of steps left _after the current one_, along with the estimate of the number of revisions left to test (after the current one). Here is a table to help analyse what should be the best estimate for the number of bisect steps left. N : linear case --> probabilities --> best ------------------------------------------------------------- 1 : G-B --> 0 --> 0 2 : G-U1-B --> 0 --> 0 3 : G-U1-U2-B --> 0(1/3) 1(2/3) --> 1 4 : G-U1-U2-U3-B --> 1 --> 1 5 : G-U1-U2-U3-U4-B --> 1(3/5) 2(2/5) --> 1 6 : G-U1-U2-U3-U4-U5-B --> 1(2/6) 2(4/6) --> 2 7 : G-U1-U2-U3-U4-U5-U6-B --> 1(1/7) 2(6/7) --> 2 8 : G-U1-U2-U3-U4-U5-U6-U7-B --> 2 --> 2 9 : G-U1-U2-U3-U4-U5-U6-U7-U8-B --> 2(7/9) 3(2/9) --> 2 10: G-U1-U2-U3-U4-U5-U6-U7-U8-U9-B --> 2(6/10)3(4/10)--> 2 In the column "N", there is the number of revisions that could _now_ be the first bad commit we are looking for. The "linear case" column describes the linear history corresponding to the number in column N. G means good, B means bad, and Ux means unknown. Note that the first bad revision we are looking for can be any Ux or B. In the "probabilities" column, there are the different outcomes in number of steps with the odds of each outcome in parenthesis corresponding to the linear case. The "best" column gives the most accurate estimate among the different outcomes in the "probabilities" column. We have the following: best(2^n) == n - 1 and for any x between 0 included and 2^n excluded, the probability for n - 1 steps left looks like: P(2^n + x) == (2^n - x) / (2^n + x) and P(2^n + x) < 0.5 means 2^n < 3x So the algorithm used in this patch calculates 2^n and x, and then choose between returning n - 1 and n. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-08rev-list: fix showing distance when using --bisect-allLibravatar Christian Couder1-0/+1
Before d467a52 ("Make '--decorate' set an explicit 'show_decorations' flag", Nov 3 2008), commit decorations were shown whenever they exist, and distances stored in them by "git rev-list --bisect-all" were automatically shown. d467a52 changed the rule so that commit decorations are not shown unless rev_info explicitly asks to, with its show_decorations bit, but forgot that the ones "git rev-list --bisect-all" adds need to be shown. This patch fixes this old breakage. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-04Add a 'source' decorator for commitsLibravatar Linus Torvalds1-1/+1
We already support decorating commits by tags or branches that point to them, but especially when we are looking at multiple branches together, we sometimes want to see _how_ we reached a particular commit. We can abuse the '->util' field in the commit to keep track of that as we walk the commit lists, and get a reasonably useful view into which branch or tag first reaches that commit. Of course, if the commit is reachable through multiple sources (which is common), our particular choice of "first" reachable is entirely random and depends on the particular path we happened to follow. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-12Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializerLibravatar Brandon Casey1-2/+1
Many call sites use strbuf_init(&foo, 0) to initialize local strbuf variable "foo" which has not been accessed since its declaration. These can be replaced with a static initialization using the STRBUF_INIT macro which is just as readable, saves a function call, and takes up fewer lines. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-15Start conforming code to "git subcmd" style part 3Libravatar Heikki Orsila1-1/+1
User notifications are presented as 'git cmd', and code comments are presented as '"cmd"' or 'git's cmd', rather than 'git-cmd'. Signed-off-by: Heikki Orsila <heikki.orsila@iki.fi> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-24Fix "git log -i --grep"Libravatar Jeff King1-1/+2
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>
2008-07-19Merge branch 'maint'Libravatar Junio C Hamano1-4/+1
* maint: GIT 1.5.6.4 builtin-rm: fix index lock file path http-fetch: do not SEGV after fetching a bad pack idx file rev-list: honor --quiet option api-run-command.txt: typofix
2008-07-17rev-list: honor --quiet optionLibravatar Junio C Hamano1-4/+1
Nick Andrew noticed that rev-list lets --quiet option to be parsed by underlying diff_options parser but did not pick up the result. This resulted in --quiet option to become effectively a no-op. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-16Merge branch 'sb/dashless'Libravatar Junio C Hamano1-1/+1
* sb/dashless: Make usage strings dash-less t/: Use "test_must_fail git" instead of "! git" t/test-lib.sh: exit with small negagive int is ok with test_must_fail Conflicts: builtin-blame.c builtin-mailinfo.c builtin-mailsplit.c builtin-shortlog.c git-am.sh t/t4150-am.sh t/t4200-rerere.sh
2008-07-13Merge branch 'ph/parseopt-step-blame'Libravatar Junio C Hamano1-0/+10
* 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
2008-07-13Make usage strings dash-lessLibravatar Stephan Beyer1-1/+1
When you misuse a git command, you are shown the usage string. But this is currently shown in the dashed form. So if you just copy what you see, it will not work, when the dashed form is no longer supported. This patch makes git commands show the dash-less version. For shell scripts that do not specify OPTIONS_SPEC, git-sh-setup.sh generates a dash-less usage string now. Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-08Merge branch 'jc/blame' (early part) into HEADLibravatar Junio C Hamano1-0/+10
* '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 Brewster1-17/+0
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>
2008-05-25Merge branch 'js/config-cb'Libravatar Junio C Hamano1-1/+1
* js/config-cb: Provide git_config with a callback-data parameter Conflicts: builtin-add.c builtin-cat-file.c
2008-05-25log --graph --left-right: show left/right information in place of '*'Libravatar Adam Simpkins1-9/+12
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>
2008-05-14Provide git_config with a callback-data parameterLibravatar Johannes Schindelin1-1/+1
git_config() only had a function parameter, but no callback data parameter. This assumes that all callback functions only modify global variables. With this patch, every callback gets a void * parameter, and it is hoped that this will help the libification effort. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-05log and rev-list: add --graph optionLibravatar Adam Simpkins1-2/+44
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 Simpkins1-1/+1
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>
2008-04-12rev-list --childrenLibravatar Junio C Hamano1-0/+10
Just like --parents option shows the parents of commits, this shows the children of commits. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-19Add --reverse to the git-rev-list usage stringLibravatar Kevin Ballard1-0/+1
git-rev-list accepts --reverse, as documented in the manpage, but the usage string does not list it. Signed-off-by: Kevin Ballard <kevin@sb.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-02Merge branch 'mk/maint-parse-careful'Libravatar Junio C Hamano1-1/+0
* mk/maint-parse-careful: receive-pack: use strict mode for unpacking objects index-pack: introduce checking mode unpack-objects: prevent writing of inconsistent objects unpack-object: cache for non written objects add common fsck error printing function builtin-fsck: move common object checking code to fsck.c builtin-fsck: reports missing parent commits Remove unused object-ref code builtin-fsck: move away from object-refs to fsck_walk add generic, type aware object chain walker Conflicts: Makefile builtin-fsck.c
2008-02-29rev-list: add --branches, --tags and --remotesLibravatar Uwe Kleine-König1-0/+3
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>
2008-02-25Remove unused object-ref codeLibravatar Martin Koegler1-1/+0
Signed-off-by: Martin Koegler <mkoegler@auto.tuwien.ac.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-20Merge branch 'lt/revision-walker'Libravatar Junio C Hamano1-1/+3
* lt/revision-walker: Add "--show-all" revision walker flag for debugging
2008-02-17check return code of prepare_revision_walkLibravatar Martin Koegler1-1/+2
A failure in prepare_revision_walk can be caused by a not parseable object. 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 Torvalds1-1/+3
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>
2008-01-04Don't access line[-1] for a zero-length "line" from fgets.Libravatar Jim Meyering1-1/+1
A NUL byte at beginning of file, or just after a newline would provoke an invalid buf[-1] access in a few places. * builtin-grep.c (cmd_grep): Don't access buf[-1]. * builtin-pack-objects.c (get_object_list): Likewise. * builtin-rev-list.c (read_revisions_from_stdin): Likewise. * bundle.c (read_bundle_header): Likewise. * server-info.c (read_pack_info_file): Likewise. * transport.c (insert_packed_refs): Likewise. Signed-off-by: Jim Meyering <meyering@redhat.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>