return error;
}
+int git_repository_foreach_head(git_repository *repo, git_repository_foreach_head_cb cb, void *payload)
+{
+ git_strarray worktrees = GIT_VECTOR_INIT;
+ git_buf path = GIT_BUF_INIT;
+ int error;
+ size_t i;
+
+ /* Execute callback for HEAD of commondir */
+ if ((error = git_buf_joinpath(&path, repo->commondir, GIT_HEAD_FILE)) < 0 ||
+ (error = cb(repo, path.ptr, payload) != 0))
+ goto out;
+
+ if ((error = git_worktree_list(&worktrees, repo)) < 0) {
+ error = 0;
+ goto out;
+ }
+
+ /* Execute callback for all worktree HEADs */
+ for (i = 0; i < worktrees.count; i++) {
+ if (get_worktree_file_path(&path, repo, worktrees.strings[i], GIT_HEAD_FILE) < 0)
+ continue;
+
+ if ((error = cb(repo, path.ptr, payload)) != 0)
+ goto out;
+ }
+
+out:
+ git_buf_free(&path);
+ git_strarray_free(&worktrees);
+ return error;
+}
+
int git_repository_head_unborn(git_repository *repo)
{
git_reference *ref = NULL;
int git_repository_head_tree(git_tree **tree, git_repository *repo);
int git_repository_create_head(const char *git_dir, const char *ref_name);
+/*
+ * Called for each HEAD.
+ *
+ * Can return either 0, causing the iteration over HEADs to
+ * continue, or a non-0 value causing the iteration to abort. The
+ * return value is passed back to the caller of
+ * `git_repository_foreach_head`
+ */
+typedef int (*git_repository_foreach_head_cb)(git_repository *repo, const char *path, void *payload);
+
+/*
+ * Iterate over repository and all worktree HEADs.
+ *
+ * This function will be called for the repository HEAD and for
+ * all HEADS of linked worktrees. For each HEAD, the callback is
+ * executed with the given payload. The return value equals the
+ * return value of the last executed callback function.
+ */
+int git_repository_foreach_head(git_repository *repo, git_repository_foreach_head_cb cb, void *payload);
+
/*
* Weak pointers to repository internals.
*