Function extractFileEdits

src/orchestration/engine.ts:268–307

(
  text: string,
  node: TaskNode,
  cwd: string,
)

 * and the common "// File: path" / "### path" preambles.
 */
export async function extractFileEdits(
  text: string,
  node: TaskNode,
  cwd: string,
): Promise<WorkerResult['fileEdits']> {
  const edits: WorkerResult['fileEdits'] = [];
  const seen = new Set<string>();

  // Pattern A: fenced block with path= attribute.
  const fenceRe = /```[a-zA-Z]*\s+path=([^\s`]+)\s*\n([\s\S]*?)```/g;
  let m: RegExpExecArray | null;
  while ((m = fenceRe.exec(text)) !== null) {
    const p = normalizeRel(m[1]!, cwd);
    if (seen.has(p)) continue;
    seen.add(p);
    edits.push({ path: p, content: m[2]!.replace(/\n$/, ''), isNew: await isNewFile(cwd, p) });
  }

  // Pattern B: "// File: path" or "### path" header followed by a fenced block.
  if (edits.length === 0) {
    const headerRe = /(?:\/\/\s*File:|###|####|File:)\s*([^\s`]+\.[a-zA-Z]+)\s*\n+```[a-zA-Z]*\n([\s\S]*?)```/g;
    while ((m = headerRe.exec(text)) !== null) {
      const p = normalizeRel(m[1]!, cwd);
      if (seen.has(p)) continue;
      seen.add(p);
      edits.push({ path: p, content: m[2]!.replace(/\n$/, ''), isNew: await isNewFile(cwd, p) });
    }
  }

  // Pattern C: exactly one target file + one fenced block, no path marker.
  if (edits.length === 0 && node.targetFiles.length === 1) {
    const block = text.match(/```[a-zA-Z]*\n([\s\S]*?)```/);
    if (block) {
      const p = node.targetFiles[0]!;
      edits.push({ path: p, content: block[1]!.replace(/\n$/, ''), isNew: await isNewFile(cwd, p) });
    }
  }

  return edits;
}

function normalizeRel(p: string, cwd: string): string {
  let rel = p.trim().replace(/^['"]|['"]$/g, '');