importing bk into git

I am trying to import a BitKeeper repo into a (new) git repo.

I am trying with the script bk2git.py that I found on the web. This does not quite work - I fear script is no longer working with the current git release. (I am using the current git release.)

If I have understood the script correctly, it does repeated bk checkouts and imports the updates the git repo diff of the (next) checkout etc.

It seems this script tries to do so by settings environment vars GIT_OBJECT_DIRECTORY and GIT_INDEX_FILE to point at the git repo.

The bk checkout are done at a temp. dir (tmp_dir).

The following lines fail
  os.system("cd %s; git-ls-files --deleted | xargs 
git-update-cache --remove" % tmp_dir)

with: fatal: Not a git repository xargs: git-update-cache: No such file or directory

The problem seems to be that the script cd's into the temp dir (which is not a git repo) and the git-ls-files fails to find a git repo there. I think the issue might be that an earlier version of git was perhaps able to find the repo by means of the env. vars mentioned above.

Any idea if/how I can fix this? Thanks for any ideas and best regards

Christoph (Sorry, my python and git skills are so far very limited.)

PS: I have attached the script I downloaded from the net.