WebUI: Add GN rules for Vulcanize.

chrome/browser/resources/vulcanize_new.py

Index: chrome/browser/resources/vulcanize_new.py
diff --git a/chrome/browser/resources/vulcanize_new.py b/chrome/browser/resources/vulcanize_new.py
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index 0000000000000000000000000000000000000000..39296cebe5246f89d62823964954e949eab91bb8
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+++ b/chrome/browser/resources/vulcanize_new.py
@@ -0,0 +1,164 @@
+#!/usr/bin/env python
+# Copyright 2016 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.
+
+import os
+import subprocess
+import sys
+import tempfile
+import argparse
+
+# See //docs/vulcanize.md for instructions on installing prerequistes and
+# running the vulcanize build.
+
+_HERE_PATH = os.path.join(os.path.dirname(__file__))
+_SRC_PATH = os.path.normpath(os.path.join(_HERE_PATH, '..', '..', '..'))
+
+sys.path.append(os.path.join(_SRC_PATH, 'third_party', 'node'))
+import node
+import node_modules
+
+_NODE_BINARY = node.get_binary()
+
+_RESOURCES_PATH = os.path.join(_SRC_PATH, 'ui', 'webui', 'resources')
+
+_CR_ELEMENTS_PATH = os.path.join(_RESOURCES_PATH, 'cr_elements')
+_CSS_RESOURCES_PATH = os.path.join(_RESOURCES_PATH, 'css')
+_HTML_RESOURCES_PATH = os.path.join(_RESOURCES_PATH, 'html')
+_JS_RESOURCES_PATH = os.path.join(_RESOURCES_PATH, 'js')
+_POLYMER_PATH = os.path.join(
+    _SRC_PATH, 'third_party', 'polymer', 'v1_0', 'components-chromium')
+
+_VULCANIZE_BASE_ARGS = [
+  '--exclude', 'crisper.js',
+
+  # These files are already combined and minified.
+  '--exclude', 'chrome://resources/html/polymer.html',
+  '--exclude', 'web-animations-next-lite.min.js',
+
+  # These files are dynamically created by C++.
+  '--exclude', 'load_time_data.js',
+  '--exclude', 'strings.js',
+  '--exclude', 'text_defaults.css',
+  '--exclude', 'text_defaults_md.css',
+
+  '--inline-css',
+  '--inline-scripts',
+
+  '--redirect', 'chrome://resources/cr_elements/|%s' % _CR_ELEMENTS_PATH,
+  '--redirect', 'chrome://resources/css/|%s' % _CSS_RESOURCES_PATH,
+  '--redirect', 'chrome://resources/html/|%s' % _HTML_RESOURCES_PATH,
+  '--redirect', 'chrome://resources/js/|%s' % _JS_RESOURCES_PATH,
+  '--redirect', 'chrome://resources/polymer/v1_0/|%s' % _POLYMER_PATH,
+
+  '--strip-comments',
+]
+
+def _run_cmd(cmd_parts, stdout=None):
+  cmd = "'" + "' '".join(cmd_parts) + "'"
+  process = subprocess.Popen(
+      cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
+  stdout, stderr = process.communicate()
+
+  if stderr:
+    print >> sys.stderr, '%s failed: %s' % (cmd, stderr)
+    raise
+
+  return stdout
+
+def _vulcanize(in_folder, out_folder, host, html_in_file,
+               html_out_file, js_out_file, extra_args=None):
+  #print 'Vulcanizing %s/%s' % (in_folder, html_in_file)
+
+  in_path = os.path.join(os.getcwd(), in_folder)
+  out_path = os.path.join(os.getcwd(), out_folder)
+
+  """print('------------------------');
+  print('cwd: ' + os.getcwd())
+  print('in_folder: ' + in_folder)
+  print('in_path: ' + in_path + ' ' + os.path.abspath(in_path))
+  print('out_path: ' + out_path)
+  print('------------------------')"""
+
+  html_in_path = os.path.join(in_path, html_in_file)
+  html_out_path = os.path.join(out_path, html_out_file)
+  js_out_path = os.path.join(out_path, js_out_file)
+  extra_args = extra_args or []
+
+  output = _run_cmd([_NODE_BINARY, node_modules.get_vulcanize_binary()] +
+                    _VULCANIZE_BASE_ARGS + extra_args +
+                    ['--redirect', '/|%s' % in_path,
+                     '--redirect', 'chrome://%s/|%s' % (host, in_path),
+                     os.path.join('/', html_in_file)])
+
+  with tempfile.NamedTemporaryFile(mode='wt+', delete=False) as tmp:
+    # Grit includes are not supported, use HTML imports instead.
+    tmp.write(output.replace(
+        '<include src="', '<include src-disabled="'))
+
+  try:
+    _run_cmd([_NODE_BINARY, node_modules.get_crisper_binary(),
+             '--source', tmp.name,
+             '--script-in-head', 'false',
+             '--html', html_out_path,
+             '--js', js_out_path])
+
+    # TODO(tsergeant): Remove when JS resources are minified by default:
+    # crbug.com/619091.
+    # Commented out because it blows up with "for of" loops.
+    _run_cmd([_NODE_BINARY, node_modules.get_uglifyjs_binary(), js_out_path,
+              '--comments', '/Copyright|license|LICENSE|\<\/?if/',
+              '--output', js_out_path])
+  finally:
+    os.remove(tmp.name)
+
+def _css_build(out_folder, files):
+  out_path = os.path.join(os.getcwd(), out_folder)
+  paths = map(lambda f: os.path.join(out_path, f), files)
+
+  _run_cmd([_NODE_BINARY, node_modules.get_polymer_css_build_binary()] + paths)
+
+def main():
+  parser = argparse.ArgumentParser()
+  parser.add_argument('--host')
+  parser.add_argument('--htmlInFile')
+  parser.add_argument('--htmlOutFile')
+  parser.add_argument('--inputType')
+  parser.add_argument('--input')
+  parser.add_argument('--jsOutFile')
+  parser.add_argument('--outFolder')
+  parser.add_argument('--depfile')
+  args = parser.parse_args()
+
+  vulcanize_input_folder = args.input;
+
+  # If a .pak file was specified, unpack that file first and pass the output to
+  # vulcanize.
+  if (args.inputType == 'PAK_FILE'):
+    import unpack_pak
+    input_folder = os.path.join(os.getcwd(), args.input)
+    output_folder = os.path.join(args.outFolder, 'flattened');
+    unpack_pak.unpack(args.input, output_folder)
+    vulcanize_input_folder = output_folder
+  # assert inputType == "FOLDER"
+
+  _vulcanize(vulcanize_input_folder, args.outFolder, args.host, args.htmlInFile,
+             args.htmlOutFile, args.jsOutFile);
+  _css_build(args.outFolder, files=[args.htmlOutFile])
+
+  # TODO(dpapad): Get a list of files from vulcanize.
+  f = open(os.path.join(os.getcwd(), args.depfile), 'w')
+
+  # Temporary hack, until vulcanize --list-files works.
+  if (args.host == 'downloads'):
+    dummy_input =
+        './../../chrome/browser/resources/md_downloads/i18n_setup.html'
+  else:
+    dummy_input = './../../chrome/browser/resources/settings/i18n_setup.html'
+
+  f.write(os.path.join(args.outFolder, 'vulcanized.html: ') + dummy_input);
+  f.close()
+
+if __name__ == '__main__':
+  main()