Die build.py, Die: Part 1 (BranchUtility and SubversionFetcher)

chrome/common/extensions/docs/server2/echo_handler.py

+#!/usr/bin/env python
+# Copyright (c) 2012 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 logging
+import urlfetch
+
+from google.appengine.ext import webapp
+from google.appengine.ext.webapp.util import run_wsgi_app
+from branch_utility import BranchUtility
+from resource_fetcher import SubversionFetcher
+
+EXTENSIONS_PATH = 'src/chrome/common/extensions/docs/'
+
+
+class MainPage(webapp.RequestHandler):
+  def get(self):
+    path = self.request.path.replace('/chrome/extensions/', '')
+
+    parts = path.split('/')
+    if len(parts) > 1:
+      filename = parts[1]
+    else:
+      filename = parts[0]
+
+    if len(path) > 0 and path[0] == '/':
+      path = path.strip('/')
+
+    fetcher = SubversionFetcher(urlfetch)
+    b_util = BranchUtility(urlfetch)
+    channel_name = b_util.GetChannelNameFromPath(path)
+    branch = b_util.GetBranchNumberForChannelName(channel_name)
+
+    logging.info(channel_name + ' ' + branch)
+    try:
+      result = fetcher.FetchResource(branch, EXTENSIONS_PATH + path)
+      content = result.content
+      for key in result.headers:
+        self.response.headers[key] = result.headers[key]
+    except:
+      content = 'File not found.'

[cduvall, 2012/05/24 03:06:00]

We can catch bad urls even from src.chromium.org. I don't think we're going to
need to use svn.chromium.org.

[Aaron Boodman, 2012/05/24 06:10:23]

Ah, it was directories I was thinking of. We can't tell the difference between a
real file in svn and, say: http://src.chromium.org/viewvc/chrome/trunk/

I guess it's a pretty minor thing, but it would be better to be correct. We can
come back to it.

+
+    self.response.out.write(content)
+
+application = webapp.WSGIApplication([
+  ('/.*', MainPage),
+], debug=False)
+
+
+def main():
+  run_wsgi_app(application)
+
+
+if __name__ == '__main__':
+  main()