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lib/common/minify.js
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John-David Dalton
Use ES6 in lib files.
27 авг 2016, 18:54
27 авг 2016, 18:54
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'use strict'; const _ = require('lodash'); const fs = require('fs-extra'); const uglify = require('uglify-js'); const uglifyOptions = require('./uglify.options'); /*----------------------------------------------------------------------------*/ /** * Asynchronously minifies the file at `srcPath`, writes it to `destPath`, and * invokes `callback` upon completion. The callback is invoked with one argument: * (error). * * If unspecified, `destPath` is `srcPath` with an extension of `.min.js`. * (e.g. the `destPath` of `path/to/foo.js` would be `path/to/foo.min.js`) * * @param {string} srcPath The path of the file to minify. * @param {string} [destPath] The path to write the file to. * @param {Function} callback The function invoked upon completion. * @param {Object} [option] The UglifyJS options object. */ function minify(srcPath, destPath, callback, options) { if (_.isFunction(destPath)) { if (_.isObject(callback)) { options = callback; } callback = destPath; destPath = undefined; } if (!destPath) { destPath = srcPath.replace(/(?=\.js$)/, '.min'); } const output = uglify.minify(srcPath, _.defaults(options || {}, uglifyOptions)); fs.writeFile(destPath, output.code, 'utf-8', callback); } module.exports = minify;