parcel-bundler/lib/utils/pipeSpawn.js

"use strict";

const spawn = require('cross-spawn');

const logger = require('@parcel/logger');

function pipeSpawn(cmd, params, opts) {
  const cp = spawn(cmd, params, Object.assign({
    env: Object.assign({
      FORCE_COLOR: logger.color,
      npm_config_color: logger.color ? 'always' : '',
      npm_config_progress: true
    }, process.env, {
      NODE_ENV: null // Passing NODE_ENV through causes strange issues with yarn

    })
  }, opts));
  cp.stdout.setEncoding('utf8').on('data', d => logger.writeRaw(d));
  cp.stderr.setEncoding('utf8').on('data', d => logger.writeRaw(d));
  return new Promise((resolve, reject) => {
    cp.on('error', reject);
    cp.on('close', function (code) {
      if (code !== 0) {
        return reject(new Error(cmd + ' failed.'));
      }

      logger.clear();
      return resolve();
    });
  });
}

module.exports = pipeSpawn;