🎁 preconstruct

A smart bundler for libraries

• works well with monorepos
• minimal to no config
• lots of build time optimistions
• uses rollup under the hood
• opinionated

THIS IS NOT READY, THIS IS JUST WHAT IT SHOULD LOOK LIKE IN THE FUTURE

Install

yarn add --dev preconstruct

Usage

preconstruct init

• Setup package.json with "main" and "module"
• Setup packages if in monorepo
• probably ask other things

preconstruct build

• verifies things
  • if typeof document or typeof window is used, prompt to add browser field
• does the build

preconstruct watch

• same as build but watches

preconstruct fix

• like init but infers as much as possible
• made for places that already have build setups
• e.g. if the package has a umd:main field and it's wrong, fix it and ask for a umdName but if it doesn't hava umd:main field, don't do anything

Ideas

• good, reliable caching
• use users babel config
• allow for other entrypoints, automatically generate folders with package.json
• opinionated dist folder structure with verification if it's wrong

Thanks/Inspiration

• microbundle was a huge inspiration for this! ❤️
• rollup
• bolt - lots of utils and things in this project were inspired by things in bolt
• all the people who wrote all the dependencies for this project!