Add 'repo init --mirror' to download a complete forrestv1.1

The mirror option downloads a complete forrest (as described by the
manifest) and creates a replica of the remote repositories rather
than a client working directory.  This permits other clients to
sync off the mirror site.

A mirror can be positioned in a "DMZ", where the mirror executes
"repo sync" to obtain changes from the external upstream and
clients inside the protected zone operate off the mirror only,
and therefore do not require direct git:// access to the external
upstream repositories.

Signed-off-by: Shawn O. Pearce <sop@google.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/git_config.py b/git_config.py
index 76031a0e..9d5162e7 100644
--- a/git_config.py
+++ b/git_config.py
@@ -285,12 +285,14 @@ class Remote(object):
         return True
     return False
 
-  def ResetFetch(self):
+  def ResetFetch(self, mirror=False):
     """Set the fetch refspec to its default value.
     """
-    self.fetch = [RefSpec(True,
-                          'refs/heads/*',
-                          'refs/remotes/%s/*' % self.name)]
+    if mirror:
+      dst = 'refs/heads/*'
+    else:
+      dst = 'refs/remotes/%s/*' % self.name
+    self.fetch = [RefSpec(True, 'refs/heads/*', dst)]
 
   def Save(self):
     """Save this remote to the configuration.