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const Terser = require('terser');
const path = require('node:path');
/**
* Process jQuery UI source files.
*
* Each file being processed creates 3 files under assets/vendor/jquery.ui/:
* - The original source for audit purposes, with a `.js` suffix.
* - The minified version for production use, with a `-min.js` suffix.
* - The source map for debugging purposes, with a `-min.js.map` suffix.
*
* @param {object} data
* Object passed to the callback.
* @param {object} data.file
* Normalized file information object.
* @param {string} data.file.from
* Path of the file in node_modules/ directory.
* @param {string} data.file.to
* Path of the file in core assets/vendor/ directory.
* @param {string} data.contents
* Content of the file being processed.
*
* @return {Promise<[{filename: string, contents: string}]>}
* Return a Promise that resolves into an array of file and content to create
* in the assets/vendor/ directory.
*/
module.exports = async ({ file: { from, to }, contents }) => {
const filename = `${to.slice(0, -3)}-min.js`;
const sourcemap = `${filename}.map`;
const { code, map } = await Terser.minify(
{ [path.basename(from)]: contents }, {
sourceMap: {
filename: path.basename(filename),
url: path.basename(sourcemap),
},
});
return [
// Original file.
{ filename: to, contents },
// Minified file.
{ filename, contents: code },
// Sourcemap file.
{ filename: sourcemap, contents: map },
];
};
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