83 lines
No EOL
2.5 KiB
JavaScript
Executable file
83 lines
No EOL
2.5 KiB
JavaScript
Executable file
'use strict';
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function _asyncToGenerator(fn) { return function () { var gen = fn.apply(this, arguments); return new Promise(function (resolve, reject) { function step(key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { return Promise.resolve(value).then(function (value) { step("next", value); }, function (err) { step("throw", err); }); } } return step("next"); }); }; }
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const Asset = require('../Asset');
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const localRequire = require('../utils/localRequire');
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const promisify = require('../utils/promisify');
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class LESSAsset extends Asset {
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constructor(name, pkg, options) {
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super(name, pkg, options);
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this.type = 'css';
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}
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parse(code) {
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var _this = this;
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return _asyncToGenerator(function* () {
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// less should be installed locally in the module that's being required
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let less = yield localRequire('less', _this.name);
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let render = promisify(less.render.bind(less));
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let opts = Object.assign({}, _this.package.less || (yield _this.getConfig(['.lessrc', '.lessrc.js'])));
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opts.filename = _this.name;
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opts.plugins = (opts.plugins || []).concat(urlPlugin(_this));
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return yield render(code, opts);
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})();
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}
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collectDependencies() {
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var _iteratorNormalCompletion = true;
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var _didIteratorError = false;
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var _iteratorError = undefined;
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try {
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for (var _iterator = this.ast.imports[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
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let dep = _step.value;
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this.addDependency(dep, { includedInParent: true });
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}
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} catch (err) {
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_didIteratorError = true;
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_iteratorError = err;
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} finally {
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try {
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if (!_iteratorNormalCompletion && _iterator.return) {
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_iterator.return();
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}
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} finally {
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if (_didIteratorError) {
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throw _iteratorError;
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}
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}
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}
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}
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generate() {
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return [{
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type: 'css',
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value: this.ast ? this.ast.css : '',
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hasDependencies: false
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}];
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}
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}
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function urlPlugin(asset) {
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return {
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install: (less, pluginManager) => {
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let visitor = new less.visitors.Visitor({
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visitUrl: node => {
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node.value.value = asset.addURLDependency(node.value.value, node.currentFileInfo.filename);
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return node;
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}
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});
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visitor.run = visitor.visit;
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pluginManager.addVisitor(visitor);
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}
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};
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}
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module.exports = LESSAsset; |