nilleb

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

"""
MIT License

Copyright (c) 2016 Matt Menzenski

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal

nilleb

for /f %%i in ('git rev-parse --abbrev-ref HEAD| sed "sI.*/IIg"') do set branch=%%i

git show-branch 2> nul | grep '\*' | grep -v "%branch%" | head -n1 | sed 's/.*\[\(.*\)\].*/\1/' | sed 's/[\^~].*//'

# How it works:
# 1| Display a textual history of all commits.
# 2| Ancestors of the current commit are indicated
#    by a star. Filter out everything else.
# 3| Ignore all the commits in the current branch.
# 4| The first result will be the nearest ancestor branch.