gulp-ui5-eager-preload/thirdparty.js

[](https://www.npmjs.com/package/gulp-ui5-eager-preload)

var rollup = require("rollup");
var rollupNodeResolve = require("rollup-plugin-node-resolve");
var rollupCjs = require("rollup-plugin-commonjs");
var { uglify } = require("rollup-plugin-uglify");

var libInmemoryCache = {};

var formatUI5Module = (umdCode, mName) => `sap.ui.define(function(){
  ${umdCode}
  return window["${mName}"] || this["${mName}"]
})
`;

var rollupTmpConfig = (mAsbPath, mName) => ({
  input: mAsbPath,
  output: {
    file: `${mName}.js`,
    format: "umd"
  },
  onwarn: function(message) {
    // do nothing
  },
  plugins: [rollupNodeResolve({ preferBuiltins: true }), rollupCjs(), uglify()]
});

var resolve = mName => {
  return require.resolve(mName);
};

/**
 * bundle thirdparty library
 * @param {string} mName module name
 */
var bundleModule = async mName => {
  // if not found cache
  if(!libInmemoryCache[mName]){
    const absPath = resolve(mName);
    const bundle = await rollup.rollup(rollupTmpConfig(absPath, mName));
    const generated = await bundle.generate({ format: "umd", name: mName });
    libInmemoryCache[mName] = formatUI5Module(generated.output[0].code, mName);
  }
  return libInmemoryCache[mName];
};

module.exports = { bundleModule };