List git branches and their remote tracking branch, if any

git-branches-with-tracking.sh

#! /bin/sh

COLUMN=`which column 2> /dev/null`
if test -z $COLUMN
then
    echo "\`column' is not found in PATH. Cannot continue."
    exit 1
fi

current_branch=`git rev-parse --abbrev-ref HEAD`

for branch in $(git for-each-ref --shell --format='%(refname)' refs/heads | sed -e s/^\'refs\\/heads\\/// -e s/\'$//)
do
    remote=`git config branch.$branch.remote`
    merge=`git config branch.$branch.merge | sed -e 's/^refs\/heads\///'`

    [ x"$current_branch" == x"$branch" ] && echo -n '*'

    echo -n "$branch"

    if ! test -z $merge
    then
        echo -en "\t"
        echo -n $remote
        echo -n /
        echo -n $merge
    fi

    echo
done | $COLUMN -t