commit 53d6f4d17e0cb4eabcd604d584a1132a51cc8bf3
author Anatol Pomazau <anatol@google.com> Thu Aug 25 17:21:47 2011 -0700
committer Shawn O. Pearce <sop@google.com> Thu Nov 03 13:08:27 2011 -0700
tree c9effdc3a5d890ac55fb8a9f2aa68ac0d500873e
parent 9d8f914fe8ac75e18e0da2b7ce4886a2ba490fc6

Add a sync flag that fetches only current branch

There is also shortcuts in case if the "current branch" is
a persistent revision such as tag or sha1. We check if the
persistent revision is present locally and if it does - do
no fetch anything from the server.

This greately reduces sync time and size of the on-disk repo

Change-Id: I23c6d95185474ed6e1a03c836a47f489953b99be

subcmds/sync.py

diff --git a/subcmds/sync.py b/subcmds/sync.py
index a3d0692..c5955a3 100644
--- a/subcmds/sync.py
+++ b/subcmds/sync.py
@@ -131,6 +131,9 @@
     p.add_option('-d','--detach',
                  dest='detach_head', action='store_true',
                  help='detach projects back to manifest revision')
+    p.add_option('-c','--current-branch',
+                 dest='current_branch_only', action='store_true',
+                 help='fetch only current branch from server')
     p.add_option('-q','--quiet',
                  dest='quiet', action='store_true',
                  help='be more quiet')
@@ -179,7 +182,8 @@
       # - We always make sure we unlock the lock if we locked it.
       try:
         try:
-          success = project.Sync_NetworkHalf(quiet=opt.quiet)
+          success = project.Sync_NetworkHalf(quiet=opt.quiet,
+                                             current_branch_only=opt.current_branch_only)
 
           # Lock around all the rest of the code, since printing, updating a set
           # and Progress.update() are not thread safe.
@@ -212,7 +216,8 @@
     if self.jobs == 1:
       for project in projects:
         pm.update()
-        if project.Sync_NetworkHalf(quiet=opt.quiet):
+        if project.Sync_NetworkHalf(quiet=opt.quiet,
+                                    current_branch_only=opt.current_branch_only):
           fetched.add(project.gitdir)
         else:
           print >>sys.stderr, 'error: Cannot fetch %s' % project.name
@@ -388,7 +393,8 @@
       _PostRepoUpgrade(self.manifest)
 
     if not opt.local_only:
-      mp.Sync_NetworkHalf(quiet=opt.quiet)
+      mp.Sync_NetworkHalf(quiet=opt.quiet,
+                          current_branch_only=opt.current_branch_only)
 
     if mp.HasChanges:
       syncbuf = SyncBuffer(mp.config)