gitup - update multiple repos while taking care of dirty indexes in different branches

gitup.sh

#!/bin/bash

for dir
do
    pushd $dir
    STASHED=false
    BRANCH=false
    if [[ -n $(git status --porcelain) ]]
    then
        git stash
        STASHED=true
    fi
    branch=$(git branch | grep "*" | cut -d ' ' -f 2)
    if [ $branch != master ]
    then
        git checkout master > /dev/null 2>&1
        BRANCH=true
    fi
    git pull --ff-only > /dev/null
    if $BRANCH
    then
        git checkout - > /dev/null 2>&1
    fi
    if $STASHED
    then
        git stash pop
    fi
    git status -s
    popd
done