Remove all unwanted git branches

prune-repo

#!/bin/bash
# Installation:
#     Linux:
#         > Save it in a PATH folder
#         > Give execution permission to this file
#         > Run from the terminal as prune-repo [options]
#     Windows:
#         > Save it in a PATH folder
#         > Rename to git-prune-repo
#         > Run from the terminal as git prune-repo [options]

deleteMethod='d'
branchesToKeep=()
includeRemotes=0
remotes=()
currBranch=$(git symbolic-ref -q HEAD)
currBranch=${currBranch##refs/heads/}
currBranch=${currBranch:-HEAD}

keepBranch() {
  local match="$1"
  shift
  for e; do [[ "$e" == "$match" ]] && return 0; done
  return 1
}

showHelp() {
    clear
    echo "Remove unused git brances, both local and remote"
    echo
    echo
    echo "options:"
    echo "--help                    Display this page"
    echo "-k, --keep                Specify the branches to keep"
    echo "-h, --hard                    Sets the branch delete mode to 'hard':"
    echo "                              Deletes the branches even if its commits"
    echo "                              are not merged."
    echo "                              Defaults to 'soft' mode"
    echo "-r, --remotes             Specify the remotes in which the branches"
    echo "                              must be deleted too"
}

while (( $# > 0 )) ; do
    case "$1" in
        --help)
            showHelp
            exit 0
            shift
            ;;
        -h|--hard)
            echo
            echo
            echo '****  Warning  ****'
            echo
            echo 'Delete mode is: Hard'
            echo 'Unmerged branches will be deleted too'
            echo
            echo
            sleep 0.3
            shift
            deleteMethod='D'
            ;;
        -k|--keep)
            shift
            while [[ $# > 0 && $1 != -* ]] ; do
                branchesToKeep+=" "$1
                shift
            done
            ;;
        -r|--remotes)
            includeRemotes=1
            shift
            while [[ $# > 0 && $1 != -* ]] ; do
                remotes+=" "$1
                shift
            done
            shift
            ;;
        -*)
            echo 'Unrecognized option:' $1
            echo 'Exiting'
            exit 1
            ;;
        *)
            shift
            ;;
    esac
done

for branch in $(git for-each-ref --format='%(refname:short)' refs/heads/) ; do
    if keepBranch $branch ${branchesToKeep[@]} ; then
        echo "Skipped" $branch
    else
        if [[ "$branch" == "$currBranch" ]] ; then
            echo $branch "is the current branch and will not be deleted"
            sleep 0.2
        else
            git branch -$deleteMethod $branch

            if [[ $includeRemotes > 0 && ${#remotes[@]} > 0 ]] ; then
                if [[ "$branch" == "master" ]] ; then
                    echo 'Remote master branch will not be deleted'
                else
                    for remote in "${remotes[@]}" ; do
                        git push $remote :$branch
                    done
                fi
            fi
        fi
    fi

    echo
    sleep 0.2
done