branch: use foreach_head to see if a branch is checked out

Previously, we have extracted the logic to find and iterate over all
HEADs of a repository. Use this function in `git_branch_is_checked_out`.
This commit is contained in:
Patrick Steinhardt 2017-04-04 18:44:43 +02:00
parent 74511aa204
commit 38fc5ab0a2

View File

@ -127,61 +127,28 @@ int git_branch_create_from_annotated(
repository, branch_name, commit->commit, commit->description, force);
}
int git_branch_is_checked_out(
const git_reference *branch)
static int branch_equals(git_repository *repo, const char *path, void *payload)
{
git_buf path = GIT_BUF_INIT, buf = GIT_BUF_INIT;
git_strarray worktrees;
git_reference *ref = NULL;
git_repository *repo;
const char *worktree;
int found = false;
size_t i;
git_reference *branch = (git_reference *) payload;
git_reference *head;
int equal;
assert(branch && git_reference_is_branch(branch));
if (git_reference__read_head(&head, repo, path) < 0 ||
git_reference_type(head) != GIT_REF_SYMBOLIC)
return 0;
repo = git_reference_owner(branch);
if (git_worktree_list(&worktrees, repo) < 0)
return -1;
for (i = 0; i < worktrees.count; i++) {
worktree = worktrees.strings[i];
if (git_repository_head_for_worktree(&ref, repo, worktree) < 0)
continue;
if (git__strcmp(ref->name, branch->name) == 0) {
found = true;
git_reference_free(ref);
break;
}
git_reference_free(ref);
}
git_strarray_free(&worktrees);
if (found)
return found;
/* Check HEAD of parent */
if (git_buf_joinpath(&path, repo->commondir, GIT_HEAD_FILE) < 0)
goto out;
if (git_futils_readbuffer(&buf, path.ptr) < 0)
goto out;
if (git__prefixcmp(buf.ptr, "ref: ") == 0)
git_buf_consume(&buf, buf.ptr + strlen("ref: "));
git_buf_rtrim(&buf);
found = git__strcmp(buf.ptr, branch->name) == 0;
out:
git_buf_free(&buf);
git_buf_free(&path);
return found;
equal = !git__strcmp(head->target.symbolic, branch->name);
git_reference_free(head);
return equal;
}
int git_branch_is_checked_out(const git_reference *branch)
{
assert(branch && git_reference_is_branch(branch));
return git_repository_foreach_head(git_reference_owner(branch),
branch_equals, (void *) branch) == 1;
}
int git_branch_delete(git_reference *branch)
{