async function run()

in robomaker-sample-app-ci/src/aws-robomaker-sample-application-ci.ts [141:178]

• 34 lines of code
• 7 McCabe index (conditional complexity)

async function run() {
  let delay_ms = 1000 * MINIMUM_BACKOFF_TIME_SECONDS;
  console.log(`ROS_DISTRO: ${ROS_DISTRO}`);
  console.log(`WORKSPACE_DIRECTORY: ${WORKSPACE_DIRECTORY}`);
  console.log(`GENERATE_SOURCES: ${GENERATE_SOURCES}`);
  console.log(`RETRIES: ${RETRIES}`);
  
  // check if RETRIES is valid (i.e. 0<) and not too large (i.e. <10)  
  if (RETRIES<0 || 9<RETRIES){
    core.setFailed(`Invalid number of retries. Must be between 0-9 inclusive`);
    return;
  }

  for (let i = 0; i <= RETRIES; i++) {
    try {
      await setup();
      if (GENERATE_SOURCES == 'true') {
        await prepare_sources();
      }
      await installPyparsing();
      await build();
      await bundle();
      core.setOutput('ros-distro', ROS_DISTRO)
      core.setOutput('sample-app-version', SAMPLE_APP_VERSION);
      break; //Break out of retry loop if successful.
    } catch (error) {
      await exec.exec("rm", ["-rf", "bundle"], getWorkingDirExecOptions()); // remove erred bundle assets
      if (i == RETRIES){
        core.setFailed(error.message); // set action to Failed after RETRIES number of retries
        break;
      }
      console.log(`Action failed.. retrying in ${delay_ms} milliseconds`);
      await delay(delay_ms); // wait for next retry per the current exponential backoff delay
      delay_ms = Math.min(delay_ms * 2,  1000 * MAXIMUM_BACKOFF_TIME_SECONDS); // double the delay for the next retry, truncate if required
    }
  }

}