Correctly name projects when mirroring

A bug introduced by relative urls caused projects such as manifest.git
to be placed in the root directory instead of the directory they should
by in.

This fix creates and refers to a resolvedFetchUrl in the _XmlRemote
class in order to get a fetchUrl that is never relative.

manifest_xml.py

@@ -46,16 +46,20 @@ class _XmlRemote(object):
     self.fetchUrl = fetch
     self.manifestUrl = manifestUrl
     self.reviewUrl = review
+    self.resolvedFetchUrl = self._resolveFetchUrl()
 
-  def ToRemoteSpec(self, projectName):
-    url = self.fetchUrl.rstrip('/') + '/' + projectName + '.git'
+  def _resolveFetchUrl(self):
+    url = self.fetchUrl.rstrip('/')
     manifestUrl = self.manifestUrl.rstrip('/')
     # urljoin will get confused if there is no scheme in the base url
     # ie, if manifestUrl is of the form <hostname:port>
     if manifestUrl.find(':') != manifestUrl.find('/') - 1:
         manifestUrl = 'gopher://' + manifestUrl
     url = urlparse.urljoin(manifestUrl, url)
-    url = re.sub(r'^gopher://', '', url)
+    return re.sub(r'^gopher://', '', url)
+
+  def ToRemoteSpec(self, projectName):
+    url = self.resolvedFetchUrl + '/' + projectName
     return RemoteSpec(self.name, url, self.reviewUrl)
 
 class XmlManifest(object):
@@ -368,7 +372,7 @@ class XmlManifest(object):
       raise ManifestParseError, 'refusing to mirror %s' % m_url
 
     if self._default and self._default.remote:
-      url = self._default.remote.fetchUrl
+      url = self._default.remote.resolvedFetchUrl
       if not url.endswith('/'):
         url += '/'
       if m_url.startswith(url):