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Edit File: webpackImporter.js

"use strict";

/**
 * @name PromisedResolve
 * @type {Function}
 * @param {string} dir
 * @param {string} request
 * @returns Promise
 */

/**
 * @name Importer
 * @type {Function}
 * @param {string} url
 * @param {string} prev
 * @param {Function<Error, string>} done
 */

const path = require("path");
const utils = require("loader-utils");
const tail = require("lodash.tail");
const importsToResolve = require("./importsToResolve");

const matchCss = /\.css$/;

/**
 * Returns an importer that uses webpack's resolving algorithm.
 *
 * It's important that the returned function has the correct number of arguments
 * (based on whether the call is sync or async) because otherwise node-sass doesn't exit.
 *
 * @param {string} resourcePath
 * @param {PromisedResolve} resolve
 * @param {Function<string>} addNormalizedDependency
 * @returns {Importer}
 */
function webpackImporter(resourcePath, resolve, addNormalizedDependency) {
    function dirContextFrom(fileContext) {
        return path.dirname(
            // The first file is 'stdin' when we're using the data option
            fileContext === "stdin" ? resourcePath : fileContext
        );
    }

return (url, prev, done) => {
        startResolving(
            dirContextFrom(prev),
            importsToResolve(utils.urlToRequest(url))
        ) // Catch all resolving errors, return the original file and pass responsibility back to other custom importers
            .catch(() => ({ file: url }))
            .then(done);
    };
}

module.exports = webpackImporter;

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