fbsimctl function on node-simctl

fbsimctl-node-simctl.js

async function simCommand (command:string, timeout:number, args:Array = [], env = {}, executingFunction = exec) {
  // run a particular simctl command
  args = [command, ...args];
  // Prefix all passed in environment variables with 'SIMCTL_CHILD_', simctl
  // will then pass these to the child (spawned) process.
  env = _.defaults(_.mapKeys(env, function(value, key) {
    return `SIMCTL_CHILD_${key}`;
  }), process.env);

  try {
    return await executingFunction('fbsimctl', args, {timeout, env});
  } catch (e) {
    if (e.stderr) {
      log.errorAndThrow(`simctl error running '${command}': ${e.stderr.trim()}`);
    } else {
      log.errorAndThrow(e);
    }
  }
}