Add '--bisect' revision machinery argument

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>

diff --git a/builtin-rev-list.c b/builtin-rev-list.c
index 4ba1c12e0b6fedb056aebed6ffc8f8bb8d6cfd18..32bf033b5b02c8c920aec81a10b0a0da873774e0 100644 (file)
--- a/builtin-rev-list.c
+++ b/builtin-rev-list.c
@@ -319,6 +319,8 @@ int cmd_rev_list(int argc, const char **argv, const char *prefix)
 
        memset(&info, 0, sizeof(info));
        info.revs = &revs;
+       if (revs.bisect)
+               bisect_list = 1;
 
        quiet = DIFF_OPT_TST(&revs.diffopt, QUIET);
        for (i = 1 ; i < argc; i++) {

diff --git a/builtin-rev-parse.c b/builtin-rev-parse.c
index 45bead65451e87a4b564e59fed3518a4de9198e9..9526aafc6c732de60f05f799c46fbf139377cccf 100644 (file)
--- a/builtin-rev-parse.c
+++ b/builtin-rev-parse.c
@@ -180,6 +180,12 @@ static int show_reference(const char *refname, const unsigned char *sha1, int fl
        return 0;
 }
 
+static int anti_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
+{
+       show_rev(REVERSED, sha1, refname);
+       return 0;
+}
+
 static void show_datestring(const char *flag, const char *datestr)
 {
        static char buffer[100];
@@ -548,6 +554,11 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
                                for_each_ref(show_reference, NULL);
                                continue;
                        }
+                       if (!strcmp(arg, "--bisect")) {
+                               for_each_ref_in("refs/bisect/bad", show_reference, NULL);
+                               for_each_ref_in("refs/bisect/good", anti_reference, NULL);
+                               continue;
+                       }
                        if (!strcmp(arg, "--branches")) {
                                for_each_branch_ref(show_reference, NULL);
                                continue;

diff --git a/revision.c b/revision.c
index 9fc4e8d3818f29261b1963f4995bc36f8af31179..a36c0d9bcd962665fc46fb2a1f75342e176f7773 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -994,7 +994,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
        if (!strcmp(arg, "--all") || !strcmp(arg, "--branches") ||
            !strcmp(arg, "--tags") || !strcmp(arg, "--remotes") ||
            !strcmp(arg, "--reflog") || !strcmp(arg, "--not") ||
-           !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk"))
+           !strcmp(arg, "--no-walk") || !strcmp(arg, "--do-walk") ||
+           !strcmp(arg, "--bisect"))
        {
                unkv[(*unkc)++] = arg;
                return 1;
@@ -1218,6 +1219,16 @@ void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
        ctx->argc -= n;
 }
 
+static int for_each_bad_bisect_ref(each_ref_fn fn, void *cb_data)
+{
+       return for_each_ref_in("refs/bisect/bad", fn, cb_data);
+}
+
+static int for_each_good_bisect_ref(each_ref_fn fn, void *cb_data)
+{
+       return for_each_ref_in("refs/bisect/good", fn, cb_data);
+}
+
 /*
  * Parse revision information, filling in the "rev_info" structure,
  * and removing the used arguments from the argument list.
@@ -1259,6 +1270,12 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
                                handle_refs(revs, flags, for_each_branch_ref);
                                continue;
                        }
+                       if (!strcmp(arg, "--bisect")) {
+                               handle_refs(revs, flags, for_each_bad_bisect_ref);
+                               handle_refs(revs, flags ^ UNINTERESTING, for_each_good_bisect_ref);
+                               revs->bisect = 1;
+                               continue;
+                       }
                        if (!strcmp(arg, "--tags")) {
                                handle_refs(revs, flags, for_each_tag_ref);
                                continue;

diff --git a/revision.h b/revision.h
index b6421a64321168237443ecb7e56e6b0765256c8b..921656aaabe74adaf24c8a14426f9533040a4669 100644 (file)
--- a/revision.h
+++ b/revision.h
@@ -63,6 +63,7 @@ struct rev_info {
                        reverse:1,
                        reverse_output_stage:1,
                        cherry_pick:1,
+                       bisect:1,
                        first_parent_only:1;
 
        /* Diff flags */