bzr_split_folder

#!/usr/bin/env python
# coding: utf-8

import misc
import os
import bzrlib.workingtree
import sys

# To run this script:
# python bzr_split_folder path_file_bzr_to_made_git name_module
# Sample
# python bzr_split_folder /User/myUser/Instancia/6.1/addons/oml2 l10n_mx_facturae
bzr_branch = sys.argv[1]
folders_to_split = sys.argv[2].split(',')

bzr_branch_splitted = os.path.join(bzr_branch, 'splitted')

#Make new main branch
misc.mkdirs(bzr_branch_splitted)
cmd = ['bzr', 'init']
misc.run_output(cmd, cwd=bzr_branch_splitted)

# Get full log history from branch
fname_full_history = os.path.join(bzr_branch, 'full-history.fi')
open(fname_full_history, "w").write(
    misc.run_output(["bzr", "fast-export"], cwd=bzr_branch))

for folder_to_split in folders_to_split:
    # Get log filter to folder
    fname_folder_history = os.path.join(bzr_branch,
                                        folder_to_split + '.fi')
    cmd = ["bzr", "fast-import-filter", "-i",
           folder_to_split, fname_full_history]
    open(fname_folder_history, "w").write(
        misc.run_output(cmd, cwd=bzr_branch))

    # Make new branch
    path_folder_split = os.path.join(bzr_branch_splitted,
                                     folder_to_split + '_to_join')
    misc.mkdirs(path_folder_split)
    cmd = ['bzr', 'init']
    misc.run_output(cmd, cwd=path_folder_split)

    # Import all filter commit from folder to new branch
    cmd = ['bzr', 'fast-import', fname_folder_history]
    misc.run_output(cmd, cwd=path_folder_split)

    # Fixing join error more info here
    #   https://answers.launchpad.net/bzr/+question/71563
    bzrlib.workingtree.WorkingTree.open(path_folder_split).\
        set_root_id("tree_root_" + folder_to_split)

    # Run join command
    cmd = ['bzr', 'join', path_folder_split]
    misc.run_output(cmd, cwd=bzr_branch_splitted)

    # Commit of join
    cmd = ['bzr', 'commit', '-m', 'Join commit']
    misc.run_output(cmd, cwd=bzr_branch_splitted)

    # Move joinned folder to root path
    cmd = ['bzr', 'mv',
           os.path.join(path_folder_split, folder_to_split),
           bzr_branch_splitted]
    misc.run(cmd)

    # Remove unused path
    cmd = ['bzr', 'rm', path_folder_split]
    misc.run(cmd)

    # Commit of mv
    cmd = ['bzr', 'commit', '-m', 'Move to root path']
    misc.run_output(cmd, cwd=bzr_branch_splitted)

sys.stdout.write('Now you can check next branch: ' +
                 bzr_branch_splitted + '\n')