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

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

+# 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.
+
+SUBVERSION_URL = 'http://src.chromium.org/viewvc/chrome/'
+TRUNK_URL = SUBVERSION_URL + 'trunk/'
+BRANCH_URL = SUBVERSION_URL + 'branches/'
+
+class SubversionFetcher(object):
+  """Class to fetch code from src.chromium.org.
+  """
+  def __init__(self, urlfetch):
+    self.urlfetch = urlfetch
+
+  def _GetURLFromBranch(self, branch):
+    if branch == 'trunk':
+      return TRUNK_URL
+    return BRANCH_URL + branch + '/'
+
+  def FetchResource(self, branch, path):
+    url = self._GetURLFromBranch(branch) + path
+    result = self.urlfetch.fetch(url)
+    return result