From e284ad1d1a2c6fa0e0ac800e87b2607f9bda339e Mon Sep 17 00:00:00 2001
From: "Shawn O. Pearce" <sop@google.com>
Date: Tue, 4 Nov 2008 07:37:10 -0800
Subject: Add 'repo init --mirror' to download a complete forrest

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>
---
 project.py | 36 +++++++++++++++++++++++++++++-------
 1 file changed, 29 insertions(+), 7 deletions(-)

(limited to 'project.py')

diff --git a/project.py b/project.py
index 0637f4bf..1cfaaae5 100644
--- a/project.py
+++ b/project.py
@@ -211,7 +211,10 @@ class Project(object):
                     gitdir = self.gitdir,
                     defaults =  self.manifest.globalConfig)
 
-    self.work_git = self._GitGetByExec(self, bare=False)
+    if self.worktree:
+      self.work_git = self._GitGetByExec(self, bare=False)
+    else:
+      self.work_git = None
     self.bare_git = self._GitGetByExec(self, bare=True)
 
   @property
@@ -489,14 +492,23 @@ class Project(object):
       print >>sys.stderr
       print >>sys.stderr, 'Initializing project %s ...' % self.name
       self._InitGitDir()
+
     self._InitRemote()
     for r in self.extraRemotes.values():
       if not self._RemoteFetch(r.name):
         return False
     if not self._RemoteFetch():
       return False
-    self._RepairAndroidImportErrors()
-    self._InitMRef()
+
+    if self.worktree:
+      self._RepairAndroidImportErrors()
+      self._InitMRef()
+    else:
+      self._InitMirrorHead()
+      try:
+        os.remove(os.path.join(self.gitdir, 'FETCH_HEAD'))
+      except OSError:
+        pass
     return True
 
   def PostRepoUpgrade(self):
@@ -792,9 +804,11 @@ class Project(object):
   def _RemoteFetch(self, name=None):
     if not name:
       name = self.remote.name
-    return GitCommand(self,
-                      ['fetch', name],
-                      bare = True).Wait() == 0
+    cmd = ['fetch']
+    if not self.worktree:
+      cmd.append('--update-head-ok')
+    cmd.append(name)
+    return GitCommand(self, cmd, bare = True).Wait() == 0
 
   def _Checkout(self, rev, quiet=False):
     cmd = ['checkout']
@@ -874,7 +888,10 @@ class Project(object):
       remote.url = url
       remote.review = self.remote.reviewUrl
 
-      remote.ResetFetch()
+      if self.worktree:
+        remote.ResetFetch(mirror=False)
+      else:
+        remote.ResetFetch(mirror=True)
       remote.Save()
 
     for r in self.extraRemotes.values():
@@ -897,6 +914,11 @@ class Project(object):
         dst = remote.ToLocal(self.revision)
         self.bare_git.symbolic_ref('-m', msg, ref, dst)
 
+  def _InitMirrorHead(self):
+    dst = self.GetRemote(self.remote.name).ToLocal(self.revision)
+    msg = 'manifest set to %s' % self.revision
+    self.bare_git.SetHead(dst, message=msg)
+
   def _InitWorkTree(self):
     dotgit = os.path.join(self.worktree, '.git')
     if not os.path.exists(dotgit):
-- 
cgit v1.2.3-54-g00ecf