Function resolveRevisionRef

packages/computer/src/git/cli.ts:2354–2361

* Resolve a ref that may carry a revision suffix (`HEAD^`, * `HEAD~2`, ...) to a concrete oid via `rev-parse`, which owns * the suffix-walking logic. A plain ref is returned untouched so * the downstream method keeps resolving branch / tag names * itself. Used by subcommands whose typed methods

(
  client: GitClient,
  dir: string,
  ref: string | undefined,
)

 * grammar.
 */
async function resolveRevisionRef(
  client: GitClient,
  dir: string,
  ref: string | undefined,
): Promise<string | undefined> {
  if (ref === undefined || !hasRevisionSuffix(ref)) return ref;
  return client.revParse({ dir, ref });
}

function isSupportedRemoteUrl(url: string): boolean {
  return url.startsWith("https://") || url.startsWith("http://") || url.startsWith("file://");