Urls with /@ won't be processed correctly when used as a requirements.

This is important for parallel checkout.

R=dpranke@chromium.org
BUG=
TEST=


Review URL: http://codereview.chromium.org/7840033

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@99981 0039d316-1c4b-4281-b951-d872f2087c98

gclient.py

@@ -172,6 +172,14 @@ class Dependency(GClientKeywords, gclient_utils.WorkItem):
     # Required dependencies to run before running this one:
     self.requirements = set()
 
+    # Post process the url to remove trailing slashes.
+    if isinstance(self.url, basestring):
+      # urls are sometime incorrectly written as proto://host/path/@rev. Replace
+      # it to proto://host/path@rev.
+      if self.url.count('@') > 1:
+        raise gclient_utils.Error('Invalid url "%s"' % self.url)
+      self.url = self.url.replace('/@', '@')
+
     self._FindDependencies()
 
     # Sanity checks
@@ -263,8 +271,10 @@ class Dependency(GClientKeywords, gclient_utils.WorkItem):
           break
       if not found_dep:
         raise gclient_utils.Error(
-            'Couldn\'t find %s in %s, referenced by %s\n%s' % (
+            'Couldn\'t find %s in %s, referenced by %s (parent: %s)\n%s' % (
-                sub_target, ref.name, self.name, str(self.root_parent())))
+                sub_target, ref.name, self.name, self.parent.name,
+                str(self.root_parent())))
+
       # Call LateOverride() again.
       parsed_url = found_dep.LateOverride(found_dep.url)
       logging.info('%s, %s to %s' % (self.name, url, parsed_url))

tests/gclient_test.py

@@ -181,6 +181,13 @@ class GclientTest(trial_dir.TestCase):
       pass
     return items
 
+  def testAutofix(self):
+    # Invalid urls causes pain when specifying requirements. Make sure it's
+    # auto-fixed.
+    d = gclient.Dependency(
+        None, 'name', 'proto://host/path/@revision', None, None,
+        None, '', True)
+    self.assertEquals('proto://host/path@revision', d.url)
 
 if __name__ == '__main__':
   logging.basicConfig(