/** Avoid an expensive remote workspace export when a turn never touched the computer. */
export function createRunWorkspaceCheckpoint(checkpoint: () => Promise<unknown>) {
  let dirty = false;
  return {
    markDirty() {
      dirty = true;
    },
    markFiles(files: readonly unknown[]) {
      if (files.length > 0) dirty = true;
    },
    async flush() {
      if (!dirty) return false;
      dirty = false;
      try {
        await checkpoint();
        return true;
      } catch (error) {
        dirty = true;
        throw error;
      }
    },
  };
}