From 4c00819910706aa8ae450292085e47e52c333440 Mon Sep 17 00:00:00 2001
From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Fri, 3 May 2013 19:31:07 -0500
Subject: [PATCH] remote-bzr: avoid bad refs

Versions of fast-export before v1.8.2 throws a bad 'reset' commands
because of a behavior in transport-helper that is not even needed.
We should ignore them, otherwise we will treat them as branches and
fail.

This was fixed in v1.8.2, but some people use this script in older
versions of git.

Also, check if the ref was a tag, and skip it for now.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 contrib/remote-helpers/git-remote-bzr | 38 +++++++++++++++++++++--------------
 1 file changed, 23 insertions(+), 15 deletions(-)

diff --git a/contrib/remote-helpers/git-remote-bzr b/contrib/remote-helpers/git-remote-bzr
index bbaaa8f6f3..0ef30f8d55 100755
--- a/contrib/remote-helpers/git-remote-bzr
+++ b/contrib/remote-helpers/git-remote-bzr
@@ -682,23 +682,31 @@ def do_export(parser):
             die('unhandled export command: %s' % line)
 
     for ref, revid in parsed_refs.iteritems():
-        name = ref[len('refs/heads/'):]
-        branch = bzrlib.branch.Branch.open(branches[name])
-        branch.generate_revision_history(revid, marks.get_tip(name))
+        if ref.startswith('refs/heads/'):
+            name = ref[len('refs/heads/'):]
+            branch = bzrlib.branch.Branch.open(branches[name])
+            branch.generate_revision_history(revid, marks.get_tip(name))
 
-        if name in peers:
-            peer = bzrlib.branch.Branch.open(peers[name])
-            try:
-                peer.bzrdir.push_branch(branch, revision_id=revid)
-            except bzrlib.errors.DivergedBranches:
-                print "error %s non-fast forward" % ref
-                continue
+            if name in peers:
+                peer = bzrlib.branch.Branch.open(peers[name])
+                try:
+                    peer.bzrdir.push_branch(branch, revision_id=revid)
+                except bzrlib.errors.DivergedBranches:
+                    print "error %s non-fast forward" % ref
+                    continue
 
-        try:
-            wt = branch.bzrdir.open_workingtree()
-            wt.update()
-        except bzrlib.errors.NoWorkingTree:
-            pass
+            try:
+                wt = branch.bzrdir.open_workingtree()
+                wt.update()
+            except bzrlib.errors.NoWorkingTree:
+                pass
+        elif ref.startswith('refs/tags/'):
+            # TODO: implement tag push
+            print "error %s pushing tags not supported" % ref
+            continue
+        else:
+            # transport-helper/fast-export bugs
+            continue
 
         print "ok %s" % ref
 
-- 
2.11.4.GIT