git-refork

README.md

git-refork

I really wanted a way to re-sync a fork with upstream, so this is it. Just put it in your path, and make sure that you have a remote called upstream that points to the original project.

WARNING: For forks only. If you use it on a non-fork project, bad things will happen. This will re-write history, so be careful.

git-refork

#!/bin/bash

##
# ATTENTION: If you've stumbled upon this and have no clue what it is, see here: http://git.io/vErAh.
##

##
# Welcome to git-refork! git-refork is designed to re-sync forks with upstream, by rebasing master onto upstream/master,
# Force pushing, then rebasing your curent branch onto the new master, and force pushing.
# 
# It requires that you have the upstream of your project configured as a remote called `upstream`.
#
# Put it in your $PATH, then use it as `git refork`.
##

USAGE="Rebases master onto upstream/master, force pushes to origin, Rebases current branch unto master, force pushes"
SUBDIRECTORY_OK=1

. "$(git --exec-path)/git-sh-setup"

BRANCH_NAME=$(git describe --contains --all HEAD)

print() {
  printf "\n$@\n"
}

echo "Reforking..."

print "Switching to master:"
git checkout master

print "Fetching remotes:"
git fetch origin
git fetch upstream

print "Rebasing onto upstream/master"
git rebase upstream/master

print "Force-pushing to origin/master"
git push -f

if [[ $BRANCH_NAME != "master" ]]; then
  print "Switching to $BRANCH_NAME"
  git checkout $BRANCH_NAME
  
  print "Rebasing onto master"
  git rebase master
  
  print "Force-Pushing to origin/$BRANCH_NAME"
  git push -f
else
  print "You were originally on master, doing nothing else."
fi

print "Done."

There is 0 error checking or confirmation.
Please, no one use this the way it is.
git fetch and git push are simple commands you can master within a matter of minutes.