[Feature Proposal] Add minification and purgecss options to CLI

[MattStypa]

Summery

This addresses a pain point of using Tailwinds with Create-React-App where the Webpack build process is concealed, or in small projects without build process.

Example

./node_modules/.bin/tailwind build ./src/styles.css --minify --purge ./src/static/**/*.html --purge ./src/views/**/*.vue

Implementation

Two new options will be added to the build command.

-m --minify - Performs minification via clean-css
-p [glob] --purge [glob] - Removes unused css via purgecss. Allows for multiple globs to be specified

[tehpsalmist]

Do you intend to make purgeCSS a dependency of tailwind in order to make this possible? Or is this something that can work or be ignored based on whether the user has already installed purgecss in their project?

[MattStypa]

PurgeCSS would be a new dependency.

[tehpsalmist]

I did something similar with my ng-tailwindcss package. https://github.com/tehpsalmist/ng-tailwindcss/blob/master/lib/purge.js

[brookback]

I don't think this should live inside Tailwind. It should do one thing – not minify and purge. There are other processing tools for that.

[Ore4444]

yeah, having PostCSS already in your toolchain, running tailwind for you, why would you want this css utility library to post-process your css?

[n1ghtmare]

Since PurgeCSS was added as a dependency and the new tailwind config has a purge option, have you considered adding minification as well?

[LZL0]

Bump.

[mike-seekwell]

I wouldn't add minify when there's tools like like cleancss. Maybe adding it to the docs could be helpful.

https://github.com/jakubpawlowicz/clean-css-cli

cleancss -o tailwind.min.css tailwind.css