diff options
| -rw-r--r-- | builtin/tag.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/builtin/tag.c b/builtin/tag.c index f7a7943c9d..72140b3986 100644 --- a/builtin/tag.c +++ b/builtin/tag.c @@ -25,6 +25,8 @@ static const char * const git_tag_usage[] = { static char signingkey[1000]; +static int core_clock_skew = -1; + struct tag_filter { const char *pattern; int lines; @@ -42,7 +44,8 @@ static int in_commit_list(const struct commit_list *want, struct commit *c) } static int contains_recurse(struct commit *candidate, - const struct commit_list *want) + const struct commit_list *want, + unsigned long cutoff) { struct commit_list *p; @@ -59,9 +62,13 @@ static int contains_recurse(struct commit *candidate, if (parse_commit(candidate) < 0) return 0; + /* stop searching if we go too far back in time */ + if (candidate->date < cutoff) + return 0; + /* Otherwise recurse and mark ourselves for future traversals. */ for (p = candidate->parents; p; p = p->next) { - if (contains_recurse(p->item, want)) { + if (contains_recurse(p->item, want, cutoff)) { candidate->object.flags |= TMP_MARK; return 1; } @@ -72,7 +79,22 @@ static int contains_recurse(struct commit *candidate, static int contains(struct commit *candidate, const struct commit_list *want) { - return contains_recurse(candidate, want); + unsigned long cutoff = 0; + + if (core_clock_skew >= 0) { + const struct commit_list *c; + unsigned long min_date = ULONG_MAX; + for (c = want; c; c = c->next) { + if (parse_commit(c->item) < 0) + continue; + if (c->item->date < min_date) + min_date = c->item->date; + } + if (min_date > core_clock_skew) + cutoff = min_date - core_clock_skew; + } + + return contains_recurse(candidate, want, cutoff); } static int show_reference(const char *refname, const unsigned char *sha1, @@ -279,6 +301,14 @@ static int git_tag_config(const char *var, const char *value, void *cb) return 0; } + if (!strcmp(var, "core.clockskew")) { + if (!value || !strcmp(value, "none")) + core_clock_skew = -1; + else + core_clock_skew = git_config_int(var, value); + return 0; + } + return git_default_config(var, value, cb); } |