Function updateArtifact

src/artifacts/store.ts:186–200

(cwd: string, input: UpdateInput, write: WriteFn, now = new Date().toISOString())

/** Update an artifact: writes a NEW version file + updated manifest. */
export async function updateArtifact(cwd: string, input: UpdateInput, write: WriteFn, now = new Date().toISOString()): Promise<{ manifest: ArtifactManifest; absFile: string; version: number }> {
  // Serialize the read-modify-write so concurrent updates to the SAME artifact
  // don't both compute the same next version number and lose one.
  return withLock(manifestLockPath(cwd, input.id), async () => {
    const existing = await readManifest(cwd, input.id);
    if (!existing) throw new Error(`Artifact "${input.id}" not found.`);
    const v = nextVersionNumber(existing);
    const rel = path.join(`v${v}`, entryFileName(existing.type));
    const absFile = path.join(artifactDir(cwd, input.id), rel);
    await write(absFile, input.content);
    const manifest = addVersion(existing, rel, now, input.note);
    await writeFileAtomic(manifestPath(cwd, input.id), JSON.stringify(manifest, null, 2));
    return { manifest, absFile, version: v };
  });
}

/** List all artifacts (newest-updated first). */
export async function listArtifacts(cwd: string): Promise<ArtifactSummary[]> {