Function writeReplayScript

src/replay/script.ts:450–475

(
  filePath: string,
  actions: SessionAction[],
  session?: SessionState,
)

}

export function writeReplayScript(
  filePath: string,
  actions: SessionAction[],
  session?: SessionState,
) {
  const lines: string[] = [];
  // Session can be missing if the replay session is closed/deleted between execution and update write.
  // In that case we still persist healed actions and omit only the context header.
  if (session) {
    const kind = session.device.kind ? ` kind=${session.device.kind}` : '';
    const target = session.device.target ? ` target=${session.device.target}` : '';
    // approach (b): heal-write the PUBLIC leaf platform (ios/macos), never the
    // internal `apple` — keeps healed `.ad` scripts byte-compatible with checked-in
    // fixtures and machine consumers.
    lines.push(
      `context platform=${publicPlatformString(session.device)}${target} device=${formatScriptStringLiteral(session.device.name)}${kind} theme=unknown`,
    );
  }
  for (const action of actions) {
    lines.push(formatReplayActionLine(action));
  }
  const serialized = `${lines.join('\n')}\n`;
  const tmpPath = `${filePath}.tmp-${process.pid}-${Date.now()}`;
  fs.writeFileSync(tmpPath, serialized);
  fs.renameSync(tmpPath, filePath);
}

function formatReplayActionLine(action: SessionAction): string {
  return formatPortableActionLine(action, { runtimeIncludeAllPositionals: true });