bifocal/node_modules/postcss-easy-import/index.js

57 lines
1.4 KiB
JavaScript

var assign = require('object-assign');
var postcssImport = require('postcss-import');
var isGlob = require('is-glob');
var resolveGlob = require('./lib/resolve-glob');
var resolveModule = require('./lib/resolve-module');
function resolve(id) {
var resolver = isGlob(id) ? resolveGlob : resolveModule;
return resolver.apply(null, arguments);
}
var plugin = opts => {
opts = assign({
prefix: false,
extensions: '.css'
}, opts);
opts.resolve = resolve;
if (opts.prefix && typeof opts.prefix !== 'string') {
throw Error(
'postcss-easy-import: ' +
'\'prefix\' option should be a string or false'
);
}
if (typeof opts.extensions === 'string') {
opts.extensions = [opts.extensions];
}
var extensions = opts.extensions;
if (
!Array.isArray(extensions) ||
!extensions.length ||
extensions.filter(function (ext) {
return ext && typeof ext === 'string';
}).length !== extensions.length
) {
throw Error(
'postcss-easy-import: ' +
'\'extensions\' option should be string or array of strings'
);
}
return {
postcssPlugin: 'postcss-easy-import',
Once(root, options) {
// eslint-disable-next-line new-cap
return postcssImport(opts).Once(root, options);
}
};
};
plugin.postcss = true;
module.exports = plugin;