@sentre/craco-plugins/dist/craco-less/index.app.js

Craco plugins for CRA

"use strict";

function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return _typeof(key) === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (_typeof(input) !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (_typeof(res) !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
/**
 * Credit https://github.com/DocSpring/craco-less
 * This modification to let craco-less to work with webpack 5
 * file-loader is no longer available in webpack 5
 * look for asset/resource instead of file-loader
 */

var path = require('path');
var _require = require('./utils'),
  deepClone = _require.deepClone,
  styleRuleByName = _require.styleRuleByName;
var pathSep = path.sep;
var lessRegex = /\.less$/;
var lessModuleRegex = /\.module\.less$/;
var overrideWebpackConfig = function overrideWebpackConfig(_ref) {
  var context = _ref.context,
    webpackConfig = _ref.webpackConfig,
    pluginOptions = _ref.pluginOptions;
  var _require2 = require('@craco/craco'),
    throwUnexpectedConfigError = _require2.throwUnexpectedConfigError;
  var throwError = function throwError(message, githubIssueQuery) {
    return throwUnexpectedConfigError({
      packageName: 'craco-less',
      githubRepo: 'DocSpring/craco-less',
      message: message,
      githubIssueQuery: githubIssueQuery
    });
  };
  pluginOptions = pluginOptions || {};
  var createLessRule = function createLessRule(_ref2) {
    var baseRule = _ref2.baseRule,
      overrideRule = _ref2.overrideRule;
    baseRule = deepClone(baseRule);
    var lessRule = _objectSpread(_objectSpread(_objectSpread({}, baseRule), overrideRule), {}, {
      use: []
    });
    var loaders = baseRule.use;
    loaders.forEach(function (ruleOrLoader) {
      var rule;
      if (typeof ruleOrLoader === 'string') {
        rule = {
          loader: ruleOrLoader,
          options: {}
        };
      } else {
        rule = ruleOrLoader;
      }
      if ((context.env === 'development' || context.env === 'test') && rule.loader.includes("".concat(pathSep, "style-loader").concat(pathSep))) {
        lessRule.use.push({
          loader: rule.loader,
          options: _objectSpread(_objectSpread({}, rule.options), pluginOptions.styleLoaderOptions || {})
        });
      } else if (rule.loader.includes("".concat(pathSep, "css-loader").concat(pathSep))) {
        lessRule.use.push({
          loader: rule.loader,
          options: _objectSpread(_objectSpread({}, rule.options), pluginOptions.cssLoaderOptions || {})
        });
      } else if (rule.loader.includes("".concat(pathSep, "postcss-loader").concat(pathSep))) {
        lessRule.use.push({
          loader: rule.loader,
          options: _objectSpread(_objectSpread({}, rule.options), pluginOptions.postcssLoaderOptions || {})
        });
      } else if (rule.loader.includes("".concat(pathSep, "resolve-url-loader").concat(pathSep))) {
        lessRule.use.push({
          loader: rule.loader,
          options: _objectSpread(_objectSpread({}, rule.options), pluginOptions.resolveUrlLoaderOptions || {})
        });
      } else if (context.env === 'production' && rule.loader.includes("".concat(pathSep, "mini-css-extract-plugin").concat(pathSep))) {
        lessRule.use.push({
          loader: rule.loader,
          options: _objectSpread(_objectSpread({}, rule.options), pluginOptions.miniCssExtractPluginOptions || {})
        });
      } else if (rule.loader.includes("".concat(pathSep, "sass-loader").concat(pathSep))) {
        lessRule.use.push({
          loader: require.resolve('less-loader'),
          options: _objectSpread(_objectSpread({}, rule.options), pluginOptions.lessLoaderOptions)
        });
      } else {
        throwError("Found an unhandled loader in the ".concat(context.env, " webpack config: ").concat(rule.loader), 'webpack+unknown+rule');
      }
    });
    return lessRule;
  };
  var oneOfRule = webpackConfig.module.rules.find(function (rule) {
    return rule.oneOf;
  });
  if (!oneOfRule) {
    throwError("Can't find a 'oneOf' rule under module.rules in the " + "".concat(context.env, " webpack config!"), 'webpack+rules+oneOf');
  }
  var sassRule = oneOfRule.oneOf.find(styleRuleByName('scss|sass', false));
  if (!sassRule) {
    throwError("Can't find the webpack rule to match scss/sass files in the " + "".concat(context.env, " webpack config!"), 'webpack+rules+scss+sass');
  }
  var lessRule = createLessRule({
    baseRule: sassRule,
    overrideRule: {
      test: lessRegex,
      exclude: [lessModuleRegex, /\.os\.less$/]
    }
  });
  if (pluginOptions.modifyLessRule) {
    lessRule = pluginOptions.modifyLessRule(lessRule, context);
  }
  var sassModuleRule = oneOfRule.oneOf.find(styleRuleByName('scss|sass', true));
  if (!sassModuleRule) {
    throwError("Can't find the webpack rule to match scss/sass module files in the " + "".concat(context.env, " webpack config!"), 'webpack+rules+scss+sass');
  }
  var lessModuleRule = createLessRule({
    baseRule: sassModuleRule,
    overrideRule: {
      test: lessModuleRegex,
      exclude: [/\.os\.module\.less$/]
    }
  });
  if (pluginOptions.modifyLessModuleRule) {
    lessModuleRule = pluginOptions.modifyLessModuleRule(lessModuleRule, context);
  }
  var assetResourceIndex = oneOfRule.oneOf.findIndex(function (rule) {
    return rule.type === 'asset/resource';
  });
  if (assetResourceIndex === -1) {
    throwError("Can't find asset/resource in the ".concat(context.env, " webpack config!"), 'webpack+asset/resource');
  }
  oneOfRule.oneOf.splice(assetResourceIndex, 0, lessRule, lessModuleRule);
  return webpackConfig;
};
module.exports = {
  overrideWebpackConfig: overrideWebpackConfig
};