webpack/webpack-cli

/**
 * See the webpack docs for more information about loaders:
 * https://webpack.js.org/contribute/writing-a-loader
 */

module.exports = function loader(source) {
    const { loaders, resource, request, version, webpack } = this;
    console.log('<%= name %>');
    const newSource = `
    /**
     * <%= name %>
     *
     * Resource Location: ${resource}
     * Loaders chained to module: ${JSON.stringify(loaders)}
     * Loader API Version: ${version}
     * Is this in "webpack mode": ${webpack}
     * This is the users request for the module: ${request}
     */
    /**
     * Original Source From Loader
     */
    ${source}`;

    return newSource;
}