Issue 2254 - Ignore stderr when jsdoc completes successfull

build.py

 # coding: utf-8
 
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 import os, sys, re, subprocess, shutil, buildtools
 from getopt import getopt, GetoptError
 from StringIO import StringIO
 from zipfile import ZipFile
@@ skipping 356 matching lines @@
     print 'No target directory specified for the documentation'
     usage(scriptName, type, 'docs')
     return
   targetDir = args[0]
 
   command = ['jsdoc',
              '--destination', targetDir,
              '--access', 'all',
              os.path.join(baseDir, 'lib')]
   if any(opt in ('-q', '--quiet') for opt, _ in opts):
-    subprocess.check_output(command)
+    process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    stderr = process.communicate()[1]
+    retcode = process.poll()
+    if retcode:
+      sys.stderr.write(stderr)
+      raise subprocess.CalledProcessError(command, retcode)
   else:
     subprocess.check_call(command)
 
 def runReleaseAutomation(baseDir, scriptName, opts, args, type):
   keyFiles = []
   downloadsRepo = os.path.join(baseDir, '..', 'downloads')
   for option, value in opts:
     if option in ('-k', '--key'):
       keyFiles.append(value)
     elif option in ('-d', '--downloads'):
@@ skipping 172 matching lines @@
         if option in ('-h', '--help'):
           usage(scriptName, type, command)
           sys.exit()
       commands[command](baseDir, scriptName, opts, args, type)
     else:
       print 'Command %s is not supported for this application type' % command
       usage(scriptName, type)
   else:
     print 'Command %s is unrecognized' % command
     usage(scriptName, type)