How to declare dependencies for individual files in Vite

[KDean-Dolphin]

I'm building a project that has CodeMirror and Peggy as dependencies.

The build process requires running rollup against editor.mjs to produce editor.bundle.js and Peggy against mySyntax.peggy to product mySyntax.peggy.js. However, the process is manual, as any changes I make to editor.mjs (and rollup.config.mjs) don't trigger a recreation of editor.bundle.js, nor do any changes I make in mySyntax.peggy trigger a recreation of mySyntax.peggy.js. I've added the necessary scripts to package.json, but I can't for the life of me figure out how to automate them.

Any help would be much appreciated.