DevTools: concatenate JS files into one big devtools.js file (similar to inspector.js in WebKit)

To use old-style unconcatenated sources, set 'debug_devtools' variable.

BUG=26911
TEST=none

Review URL: http://codereview.chromium.org/376022

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@31782 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 105 insertions, 4 deletions

diff --git a/webkit/build/concatenate_js_files.py b/webkit/build/concatenate_js_files.py
new file mode 100755
index 0000000..b6d7efc
--- /dev/null
+++ b/webkit/build/concatenate_js_files.py
@@ -0,0 +1,64 @@
+#!/usr/bin/env python
+# Copyright (c) 2009 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# This script concatenates in place JS files in the order specified
+# using <script> tags in a given 'order.html' file.
+
+from HTMLParser import HTMLParser
+from cStringIO import StringIO
+import os.path
+import sys
+
+class OrderedJSFilesExtractor(HTMLParser):
+
+  def __init__(self, order_html_name):
+    HTMLParser.__init__(self)
+    self.ordered_js_files = []
+    order_html = open(order_html_name, 'r')
+    self.feed(order_html.read())
+
+  def handle_starttag(self, tag, attrs):
+    if tag == 'script':
+      attrs_dict = dict(attrs)
+      if ('type' in attrs_dict and attrs_dict['type'] == 'text/javascript' and
+          'src' in attrs_dict):
+        self.ordered_js_files.append(attrs_dict['src'])
+
+def main(argv):
+
+  if len(argv) < 3:
+    print('usage: %s order.html input_file_1 input_file_2 ... '
+          'output_file' % argv[0])
+    return 1
+
+  output_file_name = argv.pop()
+
+  full_paths = {}
+  for full_path in argv[2:]:
+    (dir_name, file_name) = os.path.split(full_path)
+    if file_name.endswith('.js'):
+      full_paths[file_name] = full_path
+
+  extractor = OrderedJSFilesExtractor(argv[1])
+  output = StringIO()
+
+  for input_file_name in extractor.ordered_js_files:
+    if not input_file_name in full_paths:
+      print('A full path to %s isn\'t specified in command line. '
+            'Probably, you have an obsolete script entry in %s' %
+            (input_file_name, argv[1]))
+    output.write('/* %s */\n\n' % input_file_name)
+    input_file = open(full_paths[input_file_name], 'r')
+    output.write(input_file.read())
+    output.write('\n')
+    input_file.close()
+
+  output_file = open(output_file_name, 'w')
+  output_file.write(output.getvalue())
+  output_file.close()
+  output.close()
+
+if __name__ == '__main__':
+  sys.exit(main(sys.argv))
diff --git a/webkit/webkit_glue.gyp b/webkit/webkit_glue.gyp
index 914be72..f823dfd 100644
--- a/webkit/webkit_glue.gyp
+++ b/webkit/webkit_glue.gyp
@@ -39,6 +39,8 @@
       'glue/devtools/js/devtools_host_stub.js',
       'glue/devtools/js/tests.js',
     ],
+
+    'debug_devtools%': 0,
   },
   'targets': [
     {
@@ -450,15 +452,24 @@
       'dependencies': [
         'devtools_html',
       ],
+      'conditions': [
+        ['debug_devtools==0', {
+          'dependencies+': [
+            'concatenated_devtools_js',
+          ],
+        }],
+      ],
       'copies': [
         {
           'destination': '<(PRODUCT_DIR)/resources/inspector',
           'files': [
-
             '<@(devtools_files)',
-
             '<@(webinspector_files)',
-
+          ],
+          'conditions': [
+            ['debug_devtools==0', {
+              'files/': [['exclude', '\\.js$']],
+            }],
           ],
         },
         {
@@ -501,7 +512,33 @@
           'action': ['python', '<@(_inputs)', '<@(_outputs)', '<@(devtools_files)'],
         },
       ],
-    }
+    },
+    {
+      'target_name': 'concatenated_devtools_js',
+      'type': 'none',
+      'msvs_guid': '8CCFDF4A-B702-4988-9207-623D1477D3E7',
+      'dependencies': [
+        'devtools_html',
+      ],
+      'sources': [
+        '<(PRODUCT_DIR)/resources/inspector/devtools.js',
+      ],
+      'actions': [
+        {
+          'action_name': 'concatenate_devtools_js',
+          'inputs': [
+            'build/concatenate_js_files.py',
+            '<(PRODUCT_DIR)/resources/inspector/devtools.html',
+            '<@(webinspector_files)',
+            '<@(devtools_files)',
+          ],
+          'outputs': [
+            '<(PRODUCT_DIR)/resources/inspector/devtools.js',
+          ],
+          'action': ['python', '<@(_inputs)', '<@(_outputs)'],
+        },
+      ],
+    },
   ], # targets
 }