rclnodejs/scripts/ros_distro.js

ROS2.0 JavaScript client with Node.js

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at

//     http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

'use strict';

const DistroUtils = require('../lib/distro');

const distroName = DistroUtils.getDistroName();
const distroId = DistroUtils.getDistroId(distroName);

if (!distroName) {
  console.error(
    `Unable to detect ROS, please make sure a supported version of ROS is sourced.`
  );
  process.exit(1);
}

if (distroId === DistroUtils.UNKNOWN_ID) {
  console.error(`Unknown or unsupported ROS version "${distroName}"`);
  process.exit(1);
}

// otherwise
console.log(distroId);
process.exit(0);