The broccoli-postcss-single plugin runs your css through postcss plugins of your choosing.
npm install --save-dev broccoli-postcss-singleDue to changes in the plugin API of Postcss V8 some plugins may need to be updated after upgrading Postcss. Otherwise, switching to Postcss V8 should be as simple as updating this package from V4 to V5, however compatibility is not guaranteed.
- V5 broccoli-postcss -> Postcss V8
- V4 broccoli-postcss -> Postcss V7
var compileCSS = require("broccoli-postcss-single");
var outputTree = compileCSS(inputTrees, inputFile, outputFile, options);-
inputTrees: An array of trees that specify the directories used by Broccoli. If you have a single tree, pass[tree]. -
inputFile: Relative path of the main CSS file to process. -
outputFile: Relative path of the output CSS file. -
options:-
cacheExclude: An array of regular expressions that files and directories in an input node cannot pass in order to be included in the cache hash for rebuilds (blacklist). -
cacheInclude: An array of regular expressions that files and directories in an input node must pass (match at least one pattern) in order to be included in the cache hash for rebuilds (whitelist). -
plugins: An array of plugin objects to be used by Postcss (a minimum of 1 plugin is required). The supported object format ismodule: the plugin module itself, andoptions: an object of supported options for the given plugin.
There are two supported methods for defining plugins:
-
Object form
plugins: [ { module: require("some-plugin"), options: { /* options for `some-plugin` */ }, }, ];
-
Function form
plugins: [ require("some-plugin")({ /* options for `some-plugin` */ }), require("another-plugin")({ /* options for `another-plugin` */ }), ];
-
map: An object of options to describe how Postcss should handle source maps. -
browsers: An array of supported browsers following the browserslist format. These will be passed to the options of each postcss plugin. This can be overridden on a per plugin basis. -
parser: A function that parses different CSS syntax (optional). Use this if you’d like to parse a different syntax, such as Sass or Sugarcss, by passing in a custom function or node module reference.
-
/* Brocfile.js */
var compileCSS = require("broccoli-postcss-single");
var cssnext = require("cssnext");
var options = {
plugins: [
{
module: cssnext,
options: {
browsers: [
// this will override `options.browsers`
"> 1%",
"last 2 versions",
],
},
},
],
map: {
inline: true,
},
browsers: ["last 2 version"],
};
var outputTree = compileCSS(["styles"], "app.css", "app.css", options);
module.exports = outputTree;The default list of file extensions for caching is set to .css, .scss, .sass, .less for faster incremental builds. If you are using a parser or filetype not in the list you will want to add the file extension as a regex to the cacheInclude option.
If you are using something like Tailwind or a postcss plugin with a config file that you would like to trigger a rebuild, you will need to update the options to cache JS files: cacheInclude: [/.*\.(css|scss|sass|less|js)$/],.
If you are using something like PurgeCSS and would like postcss to rebuild when template files are updated, you will need to update the options to cache HBS files: cacheInclude: [/.*\.(css|scss|sass|less|hbs)$/],. However, in most cases PurgeCSS should only be run for a production build and this shouldn't be necessary.
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