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format-patch: refactor branch name calculation

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By moving the part that relies on rev->pending earlier, where we are
already checking the special case where there's only one ref.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Felipe Contreras 2013-04-07 12:46:21 -05:00 committed by Junio C Hamano
parent 80d35ca0aa
commit 427a8ec5e7
1 changed files with 16 additions and 17 deletions
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33
builtin/log.c
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@ -1052,15 +1052,6 @@ static char *find_branch_name(struct rev_info *rev)
if (0 <= positive) {
ref = rev->cmdline.rev[positive].name;
tip_sha1 = rev->cmdline.rev[positive].item->sha1;
} else if (!rev->cmdline.nr && rev->pending.nr == 1 &&
!strcmp(rev->pending.objects[0].name, "HEAD")) {
/*
* No actual ref from command line, but "HEAD" from
* rev->def was added in setup_revisions()
* e.g. format-patch --cover-letter -12
*/
ref = "HEAD";
tip_sha1 = rev->pending.objects[0].item->sha1;
} else {
return NULL;
}
@ -1280,28 +1271,36 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
}
if (rev.pending.nr == 1) {
int check_head = 0;
if (rev.max_count < 0 && !rev.show_root_diff) {
/*
* This is traditional behaviour of "git format-patch
* origin" that prepares what the origin side still
* does not have.
*/
unsigned char sha1[20];
const char *ref;
rev.pending.objects[0].item->flags |= UNINTERESTING;
add_head_to_pending(&rev);
ref = resolve_ref_unsafe("HEAD", sha1, 1, NULL);
if (ref && !prefixcmp(ref, "refs/heads/"))
branch_name = xstrdup(ref + strlen("refs/heads/"));
else
branch_name = xstrdup(""); /* no branch */
check_head = 1;
}
/*
* Otherwise, it is "format-patch -22 HEAD", and/or
* "format-patch --root HEAD". The user wants
* get_revision() to do the usual traversal.
*/
if (!strcmp(rev.pending.objects[0].name, "HEAD"))
check_head = 1;
if (check_head) {
unsigned char sha1[20];
const char *ref;
ref = resolve_ref_unsafe("HEAD", sha1, 1, NULL);
if (ref && !prefixcmp(ref, "refs/heads/"))
branch_name = xstrdup(ref + strlen("refs/heads/"));
else
branch_name = xstrdup(""); /* no branch */
}
}
/*