111 lines
3.1 KiB
JavaScript
111 lines
3.1 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = void 0;
|
|
|
|
var _path = _interopRequireDefault(require("path"));
|
|
|
|
var _options = _interopRequireDefault(require("./options.json"));
|
|
|
|
var _utils = require("./utils");
|
|
|
|
var _LessError = _interopRequireDefault(require("./LessError"));
|
|
|
|
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
|
|
|
|
async function lessLoader(source) {
|
|
const options = this.getOptions(_options.default);
|
|
const callback = this.async();
|
|
const implementation = (0, _utils.getLessImplementation)(this, options.implementation);
|
|
|
|
if (!implementation) {
|
|
callback(new Error(`The Less implementation "${options.implementation}" not found`));
|
|
return;
|
|
}
|
|
|
|
const lessOptions = (0, _utils.getLessOptions)(this, options, implementation);
|
|
const useSourceMap = typeof options.sourceMap === "boolean" ? options.sourceMap : this.sourceMap;
|
|
|
|
if (useSourceMap) {
|
|
lessOptions.sourceMap = {
|
|
outputSourceFiles: true
|
|
};
|
|
}
|
|
|
|
let data = source;
|
|
|
|
if (typeof options.additionalData !== "undefined") {
|
|
data = typeof options.additionalData === "function" ? `${await options.additionalData(data, this)}` : `${options.additionalData}\n${data}`;
|
|
}
|
|
|
|
const logger = this.getLogger("less-loader");
|
|
const loggerListener = {
|
|
error(message) {
|
|
logger.error(message);
|
|
},
|
|
|
|
warn(message) {
|
|
logger.warn(message);
|
|
},
|
|
|
|
info(message) {
|
|
logger.log(message);
|
|
},
|
|
|
|
debug(message) {
|
|
logger.debug(message);
|
|
}
|
|
|
|
};
|
|
implementation.logger.addListener(loggerListener);
|
|
let result;
|
|
|
|
try {
|
|
result = await implementation.render(data, lessOptions);
|
|
} catch (error) {
|
|
if (error.filename) {
|
|
// `less` returns forward slashes on windows when `webpack` resolver return an absolute windows path in `WebpackFileManager`
|
|
// Ref: https://github.com/webpack-contrib/less-loader/issues/357
|
|
this.addDependency(_path.default.normalize(error.filename));
|
|
}
|
|
|
|
callback(new _LessError.default(error));
|
|
return;
|
|
} finally {
|
|
// Fix memory leaks in `less`
|
|
implementation.logger.removeListener(loggerListener);
|
|
delete lessOptions.pluginManager.webpackLoaderContext;
|
|
delete lessOptions.pluginManager;
|
|
}
|
|
|
|
const {
|
|
css,
|
|
imports
|
|
} = result;
|
|
imports.forEach(item => {
|
|
if ((0, _utils.isUnsupportedUrl)(item)) {
|
|
return;
|
|
} // `less` return forward slashes on windows when `webpack` resolver return an absolute windows path in `WebpackFileManager`
|
|
// Ref: https://github.com/webpack-contrib/less-loader/issues/357
|
|
|
|
|
|
const normalizedItem = _path.default.normalize(item); // Custom `importer` can return only `contents` so item will be relative
|
|
|
|
|
|
if (_path.default.isAbsolute(normalizedItem)) {
|
|
this.addDependency(normalizedItem);
|
|
}
|
|
});
|
|
let map = typeof result.map === "string" ? JSON.parse(result.map) : result.map;
|
|
|
|
if (map && useSourceMap) {
|
|
map = (0, _utils.normalizeSourceMap)(map, this.rootContext);
|
|
}
|
|
|
|
callback(null, css, map);
|
|
}
|
|
|
|
var _default = lessLoader;
|
|
exports.default = _default; |