deployer Task to checkout last tag

deploy_checkout_tag.php

<?php

task('deploy:release:tag', function(){
    $stage = input()->getArgument('stage');
    # only in production stage
    if (!in_array($stage,['production'])) {
        return true;
    }
    $git = get('bin/git');
    $repository = trim(get('repository'));
    # get last Tag
    $latestTag = run("$git ls-remote --tags $repository | grep -o 'refs/tags/[0-9]*\.[0-9]*\.[0-9]*' | sort -r | head | grep -o '[^\/]*$' | uniq");
    writeln('last Tag: '.$latestTag);
    # go into release path
    cd('{{release_path}}');
    # Checkout the latest tag
    run("$git checkout $latestTag");
});