Function spawnDetached

apps/cli/src/daemon.ts:143–166

(input: {
  readonly command: string;
  readonly args: ReadonlyArray<string>;
  readonly env: Record<string, string | undefined>;
})

// ---------------------------------------------------------------------------

export const spawnDetached = (input: {
  readonly command: string;
  readonly args: ReadonlyArray<string>;
  readonly env: Record<string, string | undefined>;
}): Effect.Effect<SpawnedDetachedProcess, Error> =>
  Effect.try({
    try: () => {
      const child = spawn(input.command, [...input.args], {
        detached: true,
        stdio: "ignore",
        env: input.env,
      });
      child.unref();
      if (typeof child.pid !== "number") {
        child.kill();
        throw new Error("Failed to spawn daemon process: child pid was not assigned");
      }
      return { pid: child.pid };
    },
    catch: (cause) =>
      cause instanceof Error
        ? cause
        : new Error(`Failed to spawn daemon process: ${String(cause)}`),
  });

const signalPid = (pid: number): Effect.Effect<void, Error> =>
  Effect.try({