41 lines
1.6 KiB
JavaScript
41 lines
1.6 KiB
JavaScript
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/* This loader renders the template with underscore if no other loader was found */
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// @ts-nocheck
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'use strict';
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const _ = require('lodash');
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module.exports = function (source) {
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// Get templating options
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const options = this.getOptions();
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const force = options.force || false;
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const allLoadersButThisOne = this.loaders.filter((loader) => loader.normal !== module.exports);
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// This loader shouldn't kick in if there is any other loader (unless it's explicitly enforced)
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if (allLoadersButThisOne.length > 0 && !force) {
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return source;
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}
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// Allow only one html-webpack-plugin loader to allow loader options in the webpack config
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const htmlWebpackPluginLoaders = this.loaders.filter((loader) => loader.normal === module.exports);
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const lastHtmlWebpackPluginLoader = htmlWebpackPluginLoaders[htmlWebpackPluginLoaders.length - 1];
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if (this.loaders[this.loaderIndex] !== lastHtmlWebpackPluginLoader) {
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return source;
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}
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// Skip .js files (unless it's explicitly enforced)
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if (/\.(c|m)?js$/.test(this.resourcePath) && !force) {
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return source;
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}
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// The following part renders the template with lodash as a minimalistic loader
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//
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const template = _.template(source, { interpolate: /<%=([\s\S]+?)%>/g, variable: 'data', ...options });
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// Use `eval("require")("lodash")` to enforce using the native nodejs require
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// during template execution
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return 'var _ = eval("require")(' + JSON.stringify(require.resolve('lodash')) + ');' +
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'module.exports = function (templateParams) { with(templateParams) {' +
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// Execute the lodash template
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'return (' + template.source + ')();' +
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'}}';
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};
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