Simple way to use Rework with a Grunt-like config. It's kind of like middleware for CSS.
- Easily rework your CSS using a CLI
- Load npm modules like rework-pure-css
- Built-in support for minifying CSS
- Supports css-whitespace
- Build variants for various browsers (usually just oldIE)
npm install -g reworker
Reworker creates a Rework instance for you from stdin, passes this to a config, and then writes to stdout. It also helps by having built-in support for minifying CSS.
reworker < styles.css > build.css
By default, this config isn't doing much. But now you can load up some Rework plugins:
reworker --use rework-pure-css < styles.css > build.css
You can pass a variant to reworker:
reworker -v ie < style.css
This can be accessed via rework.variant
from within the config. This lets
you change the middleware options that are used based on any variant so you
can have multiple builds. This could include mobile versions, retina versions etc.
if(css.variant === "ie") {
css.use(lolcats);
}
Run reworker -h
for a list of options
var autoprefixer = require('autoprefixer'),
vars = require('rework-variables'),
inherit = require('rework-inherit');
module.exports = function(rework) {
// Could make this a module and access it with client-side JS too
var variables = {
'base': 16,
'baseline': 21,
'baseFontSize': '16px',
'baseLineHeight': '21px'
};
// Replace variables in the CSS
rework.use(vars(variables));
// Declare mixins
// These are simple properties that are replaced
// with a bunch of other properties. Just return them
// from the function.
rework.use(rework.mixin({
'border-top-radius': function(val) {
return {
'border-top-left-radius': val,
'border-top-right-radius': val
};
},
'border-bottom-radius': function(val) {
return {
'border-bottom-left-radius': val,
'border-bottom-right-radius': val
};
}
}));
// Declare functions
rework.use(rework.function({
'baseline': function(n) {
return (n * variables.baseline) + 'px';
}
}));
// Retina background images
if(options.variant !== 'ie8') {
rework.use(rework.at2x());
}
// Auto-prefix properties and values
if(options.variant === 'ie8') {
rework.use(autoprefixer.rework(["ie 8"]));
}
else {
rework.use(autoprefixer.rework(["last 2 versions"]));
}
// Allow selector extending. This comes at the very
// end so that we can extend any of the classes that
// have been generated above
rework.use(inherit({
propertyRegExp: /^extend$/
}));
return rework;
};