[PATCH 04/19] teach remote-testgit to import non-HEAD refs

[Sverre Rabbelier <srabbelier@gmail.com>]

From: Jeff King <peff@peff.net>

Upon receiving an "import" command, the testgit remote
helper would ignore the ref asked for by git and generate a
fast-export stream based on HEAD. Instead, we should
actually give git the ref it asked for.

This requires adding a new parameter to the export_repo
method in the remote-helpers python library, which may be
used by code outside of git.git. We use a default parameter
so that callers without the new parameter will get the same
behavior as before.

Signed-off-by: Sverre Rabbelier <srabbelier@gmail.com>
---

  Unchanged from Peff's series.

 git-remote-testgit.py              |    2 +-
 git_remote_helpers/git/exporter.py |    8 +++++++-
 t/t5800-remote-helpers.sh          |    2 +-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/git-remote-testgit.py b/git-remote-testgit.py
index df9d512..e4a99a3 100644
--- a/git-remote-testgit.py
+++ b/git-remote-testgit.py
@@ -122,7 +122,7 @@ def do_import(repo, args):
         die("Need gitdir to import")
 
     repo = update_local_repo(repo)
-    repo.exporter.export_repo(repo.gitdir)
+    repo.exporter.export_repo(repo.gitdir, args)
 
 
 def do_export(repo, args):
diff --git a/git_remote_helpers/git/exporter.py b/git_remote_helpers/git/exporter.py
index f40f9d6..8fd83c7 100644
--- a/git_remote_helpers/git/exporter.py
+++ b/git_remote_helpers/git/exporter.py
@@ -15,7 +15,7 @@ class GitExporter(object):
 
         self.repo = repo
 
-    def export_repo(self, base):
+    def export_repo(self, base, refs=None):
         """Exports a fast-export stream for the given directory.
 
         Simply delegates to git fast-epxort and pipes it through sed
@@ -23,8 +23,13 @@ class GitExporter(object):
         default refs/heads. This is to demonstrate how the export
         data can be stored under it's own ref (using the refspec
         capability).
+
+        If None, refs defaults to ["HEAD"].
         """
 
+        if not refs:
+            refs = ["HEAD"]
+
         dirname = self.repo.get_base_path(base)
         path = os.path.abspath(os.path.join(dirname, 'testgit.marks'))
 
@@ -38,6 +43,7 @@ class GitExporter(object):
         sys.stdout.flush()
 
         args = ["git", "--git-dir=" + self.repo.gitpath, "fast-export", "--export-marks=" + path]
+        args.extend(refs)
 
         if os.path.exists(path):
             args.append("--import-marks=" + path)
diff --git a/t/t5800-remote-helpers.sh b/t/t5800-remote-helpers.sh
index a10a48d..562edf4 100755
--- a/t/t5800-remote-helpers.sh
+++ b/t/t5800-remote-helpers.sh
@@ -81,7 +81,7 @@ test_expect_success PYTHON_24 'pushing remote local repo' '
 	compare_refs clone HEAD server HEAD
 '
 
-test_expect_failure PYTHON_24 'fetch new branch' '
+test_expect_success PYTHON_24 'fetch new branch' '
 	(cd public &&
 	 git checkout -b new &&
 	 echo content >>file &&
-- 
1.7.5.1.292.g728120