git-sync-all

#!/usr/bin/env python
#
# git-sync-all
#
# Script for syncing the main branch with origin and rebasing all branches
# against mater.
#
# Usage:
# $ git sync-all
#

import sys
import os
import git
import util

go = util.prompt_y_n('Are you absolutely sure?')
if not go:
    util.info('OK, aborting.')
    exit(0)

try:
    repo = git.Repo(os.getcwd(), search_parent_directories=True)
except git.exc.InvalidGitRepositoryError:
    util.fatal('git sync-all must be run from within a valid git repository.')

util.fatal_if_dirty(repo)

initial_branch = repo.active_branch
util.update_main(repo, initial_branch)

had_failure = False
main = util.main_branch_name(repo)
for r in repo.branches:
    if r.name != main:
        util.info('Syncing %s' % r)
        r.checkout()
        try:
            repo.git.rebase(main)
        except:
            repo.git.rebase('--abort')
            had_failure = True
            util.error('Failed to sync %s' % r)

initial_branch.checkout()

if had_failure:
    util.error('Some branches failed to rebase, please try manually')
else:
    util.success('%s synced with origin, and all branches rebased' % main)