git-retrack

#!/bin/sh

# Based on an alias written by doener on #git.

# usage: git retrack REMOTE URL BRANCH

branch=$(git rev-parse --symbolic-full-name HEAD | sed 's/refs\/heads\///')

if [ -n "$2" ]; then
    git remote add -f $1 "$2" || echo But that\'s perfectly OK.
fi

git config branch.$branch.remote "${1:-origin}"
git config branch.$branch.merge "refs/heads/${3:-$branch}"