Add initial codemod tooling #14432
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Add initial codemod tooling #14432
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+ add codemod for migrating `@apply`
Copied some utils from `@tailwindcss/cli`. Initially referenced them, but we also rely on some dependencies that we have to install. One solution is to move it to an internal package and import it so that tsup can inline everything. This also has the same 'we need the correct dependencies' problem. Another solution is to create a proper `@tailwindcss/cli-utils` (or similar) package that we can import as a dependency. However, this one will require us to actually publish the package, and give it a proper name.
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This PR adds some initial tooling for codemods. We are currently only interested
in migrating CSS files, so we will be using PostCSS under the hood to do this.
This PR also implements the "migrate
@apply" codemod from #14412.The usage will look like this:
You can pass in CSS files to transform as arguments:
But, if none are provided, it will search for CSS files in the current directory and its subdirectories.
The tooling also requires the Git repository to be in a clean state. This is a common convention to ensure that everything is undo-able. If we detect that the git repository is dirty, we will abort the migration.