Function execScript

src/lib/scripts/index.ts:20–79

(
  script: string,
  args: (string | boolean | number)[],
  language = "AppleScript",
  stderrCallback?: (data: string) => void,
)

 * @returns A promise that resolves to the output of the script.
 */
export const execScript = (
  script: string,
  args: (string | boolean | number)[],
  language = "AppleScript",
  stderrCallback?: (data: string) => void,
): { data: Promise<string>; sendMessage: (msg: string) => void } => {
  let data = "";
  let sendMessage: (msg: string) => void = (msg: string) => {
    msg;
  };
  const proc = spawn("osascript", [
    ...(script.startsWith("/") ? [] : ["-e"]),
    script,
    "-l",
    language,
    ...args.map((x) => x.toString()),
  ]);

  logDebug(
    `Running shell command "osascript ${[
      ...(script.startsWith("/") ? [] : ["-e"]),
      script,
      "-l",
      language,
      ...args.map((x) => x.toString()),
    ].join(" ")}"`,
  );

  proc.stdout?.on("data", (chunk) => {
    data += chunk.toString();
  });

  proc.stderr?.on("data", (chunk) => {
    if (stderrCallback) {
      stderrCallback(chunk.toString());
    }
  });

  proc.stdin.on("error", (err) => {
    logDebug(`Error writing to stdin: ${err}`, DebugStyle.Error);
  });

  sendMessage = async (message: string) => {
    if (message?.length > 0) {
      proc.stdin.cork();
      proc.stdin.write(`${message}\r\n`);
      proc.stdin.pipe(proc.stdin, { end: false });
      process.nextTick(() => proc.stdin.uncork());
    }
  };

  const waitForFinish = async () => {
    while (proc.stdout?.readable && proc.stderr?.readable && proc.stdin?.writable) {
      await util.promisify(setTimeout)(100);
    }
    return data;
  };