#!/usr/bin/env bash

url_svn() {
    local svn_branch_url=$(git svn info | grep URL: | cut -d' ' -f2)
    local svn_branch_url=${svn_branch_url/\/trunk/\/branches}
    local svn_branch_url=${svn_branch_url/\/trunk\//\/branches}
    local svn_branch_url=${svn_branch_url/\/branches\/*/\/branches}
    echo $svn_branch_url
}

branches_svn() {
    svn ls $(url_svn) | sed -e 's/\/$//'
}

branches_git() {
    git branch --list --remote | sed -e 's/^  //' | grep -v 'trunk'
}

branches_removed() {
    local svn_branches=" $(branches_svn) "

    branches_git | \
    while read git_branch; do
    if ! (echo $svn_branches | grep " $git_branch " >/dev/null); then
            echo $git_branch
        fi
    done
}

main() {
    local remove_branches=$(branches_removed)

    if [ "" = "$remove_branches" ]; then
        echo "Everything clear."
        exit 0
    fi

    echo "Branches that will be removed:"
    echo "=============================="
    echo $remove_branches | sed -e 's/ /\n/g'

    echo ""
    echo -n "Press CTRL-C to abort! Continue in ..."; sleep 1
    echo -n " 5"; sleep 1
    echo -n " 4"; sleep 1
    echo -n " 3"; sleep 1
    echo -n " 2"; sleep 1
    echo -n " 1"; sleep 1
    echo ""
    echo ""

    echo "$remove_branches" | \
    while read git_branch; do
        git branch --remote --delete $git_branch
    done
}

main