Integrate existing submodules as subtree

submodule2subtree.py

#!/usr/bin/env python

from __future__ import print_function
from git import Repo
import sys
import os
import shutil


def convert_submodule_to_subtree(r, sm, squash=True):
    url = sm.url
    path = sm.path
    commit = sm.binsha.encode('hex')

    # Remove submodule
    #sm.remove(force=True)
    # Remove files
    r.git.rm('-rf', path)

    # Commit removement of submodule
    r.git.commit(
        '-a',
        '-m',
        "[TASK] Removes submodule '%s' for later adding as subtree" % path
    )

    r.git.fetch(url)

    # Add submodule as subtree
    r.git.subtree(
        'add',
        "-P", path,
        url,
        commit,
        '--squash'
    )


def convert_submodules_to_subtree():

    r = Repo("")

    print (
        "converting submodules to squashed subtrees in rep '%s#" % r.git_dir
    )

    if r.is_dirty():
        print ("repo is dirty", file=sys.stderr)
        sys.exit(1)

    for submodule in r.submodules:
        print ("Converting Submodule: %s" % submodule)
        convert_submodule_to_subtree(r, submodule)

convert_submodules_to_subtree()