[PATCH v2 0/3] git-p4: Search for parent commit on branch creation

The new version of these patches includes the improvement suggestions from Pete Wyckoff:

 - Use os.path.join().
 - Use git update-ref -d to remove refs.
 - Read $GIT_DIR environment variable.
 - Optimize comparison cycle to avoid excessive use of checkpoint
   command.

Vitor Antunes (3):
  git-p4: Add checkpoint() task
  git-p4: Search for parent commit on branch creation
  git-p4: Add test case for complex branch import

 contrib/fast-import/git-p4 |   38 ++++++++++++++++++++-
 t/t9801-git-p4-branch.sh   |   80 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 117 insertions(+), 1 deletions(-)