Squash a bunch of commits into one but keep all the commit messages

git-funge

#!/bin/bash
# Special thanks to https://stackoverflow.com/a/5201642/1212371
#
# Installation:
# Download and place this file somewhere in your path typically ~/bin/git-funge or /usr/local/bin/git-funge
# make sure it has execute permissions with `sudo chmod +x <path-to-your>/git-funge`
#
# Usage:
# 
# `git funge HEAD~3` or 
# `git funge <COMMIT_ID>`
# 
# This will open up a new commit message comprised of each of the in between commits which you can edit and have placed
# as your new single commit message.
# 
# Define 'funge': 
# (verb) To make something 'fungible'
# yes I just made that up.
#

if [[ $@ ]]; then
  git reset --soft $@ &&
  git commit --edit -m"$(git log --format=%B --reverse HEAD..HEAD@{1})"
else
  echo "Must supply a commit or HEAD~ argument"
fi