group-css-media-queries
=======================

CSS postprocessing: group media queries. Useful for postprocessing preprocessed CSS files.

What is it?

You have input.css (take note on similar media query):
``css
.header-main {
background-image: url("/images/branding/logo.main.png");
}
@media all and (-webkit-min-device-pixel-ratio:1.5),(min--moz-device-pixel-ratio:1.5),(-o-min-device-pixel-ratio:1.5/1),(min-device-pixel-ratio:1.5),(min-resolution:138dpi),(min-resolution:1.5dppx) {
.header-main {
background-image: url("/images/branding/logo.main@2x.png");
-webkit-background-size: auto auto;
-moz-background-size: auto auto;
background-size: auto auto;
}
}
.footer-main {
background-image: url("/images/branding/logo.main.png");
}
@media all and (-webkit-min-device-pixel-ratio:1.5),(min--moz-device-pixel-ratio:1.5),(-o-min-device-pixel-ratio:1.5/1),(min-device-pixel-ratio:1.5),(min-resolution:138dpi),(min-resolution:1.5dppx) {
.footer-main {
background-image: url("/images/branding/logo.main@2x.png");
-webkit-background-size: auto auto;
-moz-background-size: auto auto;
background-size: auto auto;
}
}
`

Run this utility:
`
group-css-media-queries input.css output.css
`

The result is output.css:
`css
.header-main {
background-image: url("/images/branding/logo.main.png");
}

.footer-main {
background-image: url("/images/branding/logo.main.png");
}

@media all and (-webkit-min-device-pixel-ratio:1.5),(min--moz-device-pixel-ratio:1.5),(-o-min-device-pixel-ratio:1.5/1),(min-device-pixel-ratio:1.5),(min-resolution:138dpi),(min-resolution:1.5dppx) {
.header-main {
background-image: url("/images/branding/logo.main@2x.png");
-webkit-background-size: auto auto;
-moz-background-size: auto auto;
background-size: auto auto;
}

.footer-main {
background-image: url("/images/branding/logo.main@2x.png");
-webkit-background-size: auto auto;
-moz-background-size: auto auto;
background-size: auto auto;
}
}
`

Voila!

Installing

`
npm install -g group-css-media-queries
``

Media Queries order

Output CSS is ordered by these rules:
* non-media-query code goes first unmodified,
* then all only min-width rules, sorted ascending by px
* then all only max-width rules, sorted descending by px
* then all interval rules, without reordering
* then all other rules

Changelog

* 1.1.0 - adopted unit tests, refactored media queries ordering
* 1.0.1 – added basic media queries sorting (thanks to @berbaquero)
* 1.0.0 – initial working release