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git-branch -D: make it work even when on a yet-to-be-born branch

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This makes "git branch -D other_branch" work even when HEAD
points at a yet-to-be-born branch.

Earlier, we checked the HEAD ref for the purpose of "subset"
check even when the deletion was forced (i.e. not -d but -D).
Because of this, you cannot delete a branch even with -D while
on a yet-to-be-born branch.

With this change, the following sequence that now works:

	mkdir newdir && cd newdir
	git init-db
	git fetch -k $other_repo refs/heads/master:refs/heads/othre
	# oops, typo
	git branch other othre
	git branch -D othre

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2006-11-24 23:10:23 -08:00
parent 75e6e21320
commit 67affd5173
1 changed files with 8 additions and 4 deletions
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12
builtin-branch.c
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@ -38,12 +38,16 @@ static int in_merge_bases(const unsigned char *sha1,
static void delete_branches(int argc, const char **argv, int force)
{
struct commit *rev, *head_rev;
struct commit *rev, *head_rev = head_rev;
unsigned char sha1[20];
char *name;
int i;
head_rev = lookup_commit_reference(head_sha1);
if (!force) {
head_rev = lookup_commit_reference(head_sha1);
if (!head_rev)
die("Couldn't look up commit object for HEAD");
}
for (i = 0; i < argc; i++) {
if (!strcmp(head, argv[i]))
die("Cannot delete the branch you are currently on.");
@ -53,8 +57,8 @@ static void delete_branches(int argc, const char **argv, int force)
die("Branch '%s' not found.", argv[i]);
rev = lookup_commit_reference(sha1);
if (!rev || !head_rev)
die("Couldn't look up commit objects.");
if (!rev)
die("Couldn't look up commit object for '%s'", name);
/* This checks whether the merge bases of branch and
* HEAD contains branch -- which means that the HEAD