I spent part of 2020 looking at older front-end build processes that had grown around projects rather than being properly planned.
The pattern was familiar. A project had started with a simple Sass compiler, then JavaScript bundling was added later, then image tasks were added, then a watch command was changed by one developer and a production build command was changed by another. The site still worked, but nobody felt completely confident about what happened when the assets were built.
Writing Down The Existing Commands
I started by opening package.json and writing down what each script actually did. That sounds basic, but it helped immediately. Some scripts were still useful. Some were old shortcuts from an earlier version of the build. Some were doing almost the same thing with slightly different flags.
{
"scripts": {
"dev": "webpack --mode development --watch",
"build": "webpack --mode production",
"lint": "eslint src/js"
}
}The goal was not to create the most modern setup possible. The goal was to make the existing setup understandable. A build process should answer simple questions clearly: how do I work locally, how do I create production assets and how do I check that the code is not obviously broken?
Removing The Dead Parts
Once the scripts were clearer, I looked at the files being produced. Older builds often leave behind compiled files that are no longer referenced, duplicate bundles from previous experiments or source maps that should not be deployed in the same way. Removing those files made the theme easier to inspect and reduced the risk of uploading the wrong asset later.
This was also a good time to check whether production builds were actually minifying the right files. It is easy to assume that a build command is doing the right thing because it exists. I prefer to check the output directly, especially on a site where performance matters.
Keeping The Change Small
I deliberately avoided changing everything at once. It would have been tempting to replace the entire build with a newer tool, but that would have turned a maintenance task into a rebuild. The project did not need that. It needed a cleaner set of commands and a more predictable output.
Small improvements were enough. Rename unclear scripts, remove unused tasks, document the production command and make sure the generated assets matched what the theme actually enqueued. That kind of work is not exciting, but it makes every future update safer.
What I Took From It
Retrospectively, the best build process is not always the newest one. It is the one the team can understand and repeat. If a developer joins the project and cannot tell how assets are created, the tooling has already become part of the problem.
Tidying the build made the project feel less fragile. It did not change the design or add a feature, but it reduced the chance of mistakes during normal development. That is often where the most useful maintenance work lives.