static int find_subtree_r(git_tree **out, git_tree *root,
git_repository *repo, const char *target, int *fanout)
{
int error;
git_tree *subtree = NULL;
*out = NULL;
error = find_subtree_in_current_level(&subtree, repo, root, target, *fanout);
if (error == GIT_EEXISTS)
return git_tree_lookup(out, repo, git_tree_id(root));
if (error < 0)
return error;
*fanout += 2;
error = find_subtree_r(out, subtree, repo, target, fanout);
git_tree_free(subtree);
return error;
}
static int manipulate_note_in_tree_r(
git_tree **out,
git_repository *repo,
git_tree *parent,
git_oid *note_oid,
const char *annotated_object_sha,
int fanout,
int (*note_exists_cb)(
git_tree **out,
git_repository *repo,
git_tree *parent,
git_oid *note_oid,
const char *annotated_object_sha,
int fanout,
int current_error),
int (*note_notfound_cb)(
git_tree **out,
git_repository *repo,
git_tree *parent,
git_oid *note_oid,
const char *annotated_object_sha,
int fanout,
int current_error))
{
int error = -1;
git_tree *subtree = NULL, *new = NULL;
char subtree_name[3];
error = find_subtree_in_current_level(
&subtree, repo, parent, annotated_object_sha, fanout);
if (error == GIT_EEXISTS) {
error = note_exists_cb(
out, repo, parent, note_oid, annotated_object_sha, fanout, error);
goto cleanup;
}
if (error == GIT_ENOTFOUND) {
error = note_notfound_cb(
out, repo, parent, note_oid, annotated_object_sha, fanout, error);
goto cleanup;
}
if (error < 0)
goto cleanup;
/* An existing fanout has been found, let's dig deeper */
error = manipulate_note_in_tree_r(
&new, repo, subtree, note_oid, annotated_object_sha,
fanout + 2, note_exists_cb, note_notfound_cb);
if (error < 0)
goto cleanup;
strncpy(subtree_name, annotated_object_sha + fanout, 2);
subtree_name[2] = '\0';
error = tree_write(out, repo, parent, git_tree_id(new),
subtree_name, GIT_FILEMODE_TREE);
cleanup:
git_tree_free(new);
git_tree_free(subtree);
return error;
}