Issue 5078 - Allow convert_js to work on already processed files

packagerChrome.py

 # 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 errno
 import io
 import json
 import os
 import re
 from StringIO import StringIO
@@ skipping 165 matching lines @@
         modules = []
 
         if 'module' in current_args and info_module:
             modules.append(('info', info_module))
 
         for input_filename in input_files:
             module_name = os.path.splitext(os.path.basename(input_filename))[0]
             prefix = os.path.basename(os.path.dirname(input_filename))
             if prefix != 'lib':
                 module_name = '{}_{}'.format(prefix, module_name)
-            with open(os.path.join(base_dir, input_filename), 'r') as file:
-                modules.append((module_name, file.read().decode('utf-8')))
-            files.pop(input_filename, None)
+            if input_filename in files:
+                modules.append((module_name, files.pop(input_filename)))
+            else:
+                with open(os.path.join(base_dir, input_filename), 'r') as file:
+                    modules.append((module_name, file.read().decode('utf-8')))
 
         files[filename] = template.render(
             args=current_args,
             modules=modules,
             basename=params['metadata'].get('general', 'basename'),
             version=params['metadata'].get('general', 'version')
         ).encode('utf-8')
 
 
 def toJson(data):
@@ skipping 209 matching lines @@
         files['qunit/index.html'] = createScriptPage(params, 'testIndex.html.tmpl',
                                                      ('general', 'testScripts'))
 
     zipdata = files.zipToString()
     signature = None
     pubkey = None
     if keyFile != None:
         signature = signBinary(zipdata, keyFile)
         pubkey = getPublicKey(keyFile)
     writePackage(outFile, pubkey, signature, zipdata)