Nguyễn Thái Ngọc Duy <[email protected]> writes:
> We only try to get branch name in "format-patch origin" case or
> similar and not "format-patch -22" where HEAD is automatically
> added. Without correct branch name, branch description cannot be
> added. Make sure we always get branch name.
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <[email protected]>
> ---
> builtin/log.c | 16 +++++++++++++---
> t/t4014-format-patch.sh | 7 +++++++
> 2 files changed, 20 insertions(+), 3 deletions(-)
>
> diff --git a/builtin/log.c b/builtin/log.c
> index 039bf67..81683f6 100644
> --- a/builtin/log.c
> +++ b/builtin/log.c
> @@ -1027,12 +1027,22 @@ static char *find_branch_name(struct rev_info *rev)
> else
> return NULL;
> }
> - if (positive < 0)
> + if (positive >= 0)
> + ref = rev->cmdline.rev[positive].name;
> + 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";
> + else
> return NULL;
> - ref = rev->cmdline.rev[positive].name;
> if (dwim_ref(ref, strlen(ref), branch_sha1, &full_ref) &&
> !prefixcmp(full_ref, "refs/heads/") &&
> - !hashcmp(rev->cmdline.rev[positive].item->sha1, branch_sha1))
> + (positive < 0 ||
> + !hashcmp(rev->cmdline.rev[positive].item->sha1, branch_sha1)))
This hashcmp() is to make sure that the tip we _guessed_ with
dwim_ref() that the user meant matches what we are going to use, so
I do not think disabling the check is a good idea.
You could (and I think you should) do something like this:
if (0 <= positive) {
ref = rev->cmdline.rev[positive].name;
tip_sha1 = rev->cmdline.rev[positive].item->sha1;
} else if (... defaulted to implied HEAD? ...) {
ref = "HEAD";
tip_sha1 = rev->pending.objects[0].item->sha1;
} else {
return NULL;
}
if (dwim_ref(...) && !prefixcmp(full_ref, "refs/heads/") &&
!hashcmp(tip_sha1, branch_sha1))
to preserve that safety instead.
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