GrumPHP: A Pragmatic Local Continuous Integration Workflow

Had a new dev join the team a while back. Sharp guy, good attitude. But his first few commits were… inconsistent. Braces all over the place, weird spacing, the works. It wasn’t a code-breaker, but it was noise. My code reviews started turning into lessons on coding standards instead of focusing on the actual logic. Total mess.

My first thought was to just point him to our documentation. “Hey, just run the linter before you commit.” And yeah, that worked for a bit. But people get busy. They forget. A manual process for something like this is bound to fail. I needed a bouncer at the door, not a suggestion box. I needed a pragmatic, local continuous integration tool that would just enforce the rules automatically. No discussion.

Enter GrumPHP: Your Automated Gatekeeper

This is where I fell in love with GrumPHP. It’s a Composer package that hijacks your Git pre-commit hook. In plain English: it runs a bunch of checks on your code every single time you try to commit. If any check fails, the commit is rejected. Period. It forces you to fix the problem right then and there. No more “I’ll fix it later” nonsense.

You’re not setting up a Jenkins server or wrestling with YAML files for GitHub Actions just to check for PHP syntax. It all runs locally. Fast. This is a huge win for keeping the main branch clean and ensuring a baseline of quality for every single commit. I saw a great breakdown of this concept over at carlalexander.ca, which really solidified my thinking.

A Simple, No-Nonsense GrumPHP Setup

Here’s the kicker: setting it up is dead simple. You install it via Composer and create a grumphp.yml file in your project root. That’s it. From there, you just tell it what tasks to run. For most of our WordPress projects, the config looks something like this.

grumphp:
    tasks:
        composer:
            no_check_all: true
        phplint:
            triggered_by: ['php']
        phpcs:
            standard: ['WordPress']
            triggered_by: ['php']
        phpstan:
            level: 5
            memory_limit: "-1"
            configuration: 'phpstan.neon'
            triggered_by: ['php']

Let’s break that down real quick:

• composer: Makes sure your composer.json is valid. Simple sanity check.
• phplint: Checks for fatal PHP errors, like a missing semicolon. Catches the dumb mistakes we all make.
• phpcs: This is the big one. We run PHP_CodeSniffer and tell it to use the official WordPress coding standards. No more arguments about brace placement.
• phpstan: This is for static analysis. It reads your code and finds potential bugs without actually running it. Trust me on this, it’ll save your skin.

So, What’s the Point?

Stop wasting time on code review nitpicks. Automate your standards enforcement. A local continuous integration workflow using GrumPHP means every commit, from every developer, has already passed a baseline quality check before it ever leaves their machine. It’s not about being a control freak; it’s about professionalism and freeing up senior developers to focus on the hard problems, not syntax.

Look, this stuff gets complicated fast. If you’re tired of debugging someone else’s mess and just want your site to work, drop my team a line. We’ve probably seen it before.