apiconnect-cli-loopback/lib/npm-install.js

Plugin for IBM API Connect Developer Toolkit

/********************************************************* {COPYRIGHT-TOP} ***
 * Licensed Materials - Property of IBM
 * 5725-Z22, 5725-Z63, 5725-U33, 5725-Z63
 *
 * (C) Copyright IBM Corporation 2016, 2017
 *
 * All Rights Reserved.
 * US Government Users Restricted Rights - Use, duplication or disclosure
 * restricted by GSA ADP Schedule Contract with IBM Corp.
 ********************************************************** {COPYRIGHT-END} **/
// Node module: apiconnect-cli-loopback

var Promise = require('bluebird');
var chalk = require('chalk');
var g = require('strong-globalize')();
var spawn = require('cross-spawn');

function npmInstall(options) {
  var oldCwd = process.cwd();
  return new Promise(function(resolve, reject) {
    process.chdir(options.dir);

    var cmdArgs = [ 'install' ];
    if (options.type === 'add' && options.module) {
      cmdArgs.push('--save', options.module);
    }
    var commandStr = 'npm ' + cmdArgs.join(' ');

    var msg = g.f('\n\nRunning %s' +
      ' for you to install the required dependencies.' +
      ' If this fails, try running the command yourself.\n\n',
      chalk.yellow.bold(commandStr));
    options.outstream.write(msg);

    if (options.npmLogLevel) {
      cmdArgs.push('--loglevel');
      cmdArgs.push(options.npmLogLevel);
    }

    var spawnOptions = { stdio: [ 'inherit', 'inherit', 'inherit' ] };
    if (options.npmLogPipe) {
      spawnOptions = { stdio: [ 'inherit', 'pipe', 'pipe' ] };
    }

    var install = spawn('npm', cmdArgs, spawnOptions);
    if (options.npmLogPipe) {
      install.stdout.setEncoding('utf8');
      install.stdout.on('data', function(data) {
        options.outstream.write({ data: data, type: 'stdout' });
      });
      install.stderr.setEncoding('utf8');
      install.stderr.on('data', function(data) {
        options.errstream.write({ data: data, type: 'stderr' });
      });
    }
    install.on('close', function(code) {
      var msg = g.f('child process %s exited with code %s\n', commandStr, code);
      options.outstream.write(msg);
      if (code !== 0) {
        return reject(new Error(msg));
      }
      resolve();
    });
  }).finally(function() {
    process.chdir(oldCwd);
  });
}

module.exports = npmInstall;