Sync with a git remote, using git-up if available, pull --rebase if not

git-sync

#!/bin/sh
changed=`git status -s | wc -l`
if [[ "$changed" -gt "0" ]]; then
    echo "\033[31mCan't sync: working tree dirty\033[0m"
else
    repo=${1:-origin}
    if which -s git-up; then
        git up $repo
    else
        git pull --rebase $repo
    fi
    git push $repo
fi