25 lines
2.2 KiB
Markdown
25 lines
2.2 KiB
Markdown
---
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title: "To monorepo, or not to monorepo?"
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permalink: "archive/2022/08/31/monorepo-or-not"
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pubDate: 2022-08-31
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tags: ["git"]
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---
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I listened to a podcast episode recently which talked about monorepos - i.e. code repositories that contain multiple project codebases rather than a single repository for each codebase - and this got me thinking about whether I should be using these more.
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It's something that I've been trialling recently in my [Docker examples](https://github.com/opdavies/docker-examples) and [Docker images](https://github.com/OliverDaviesLtd/docker-images) repositories, where one repository contains and builds multiple Docker images.
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I'm not suggesting that I put all of my client projects into one repository, but at least combining the different parts of the same project into the same repository.
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For example, I'm working for one client on their current Drupal 7 websites whilst developing the new Drupal 9 versions, which are currently in two separate repositories. I'm also developing an embeddable Vue.js application as part of the Drupal 9 website, and using Fractal as a component library. These are also in their own repositories.
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Using a monorepo approach, all of these projects would be in the same repository.
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I can see advantages to being able to see cross-project changes in the same place - such as an API change in Drupal that needs a update to be made in Vue.js, or vice-versa - rather than needing to look at separate repositories. This could also make versioning easier as everything will be stored and tagged inside the same repository.
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Each project has it's own CI pipeline, so it would require some changes where I set a specific pipeline to run only when a directory is changed.
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I see how deployments may be tricker if I need to push an update within a directory to another Git repository, which makes me wonder if I'll need to look into using subtree splits to create separate deployment repositories - similar to how the Symfony project has one main repository and then each component split into its own repository.
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I'll keep trialling it in my open-source projects and maybe test it with some client projects, but if you have experience with monorepos that you'd like to share, then please reply to this email - I'd love to hear about it.
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