Created
November 10, 2012 23:18
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Uglify a javascript file.
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#!/usr/local/bin/node | |
var fs = require('fs'), | |
uglify = require('uglify-js'), | |
header = function (name) { | |
return '/*\n * ' + name + '.js ~ Copyright (c) 2012 My Copyright\n */\n'; | |
}; | |
function buildFile() { | |
var args = Array.prototype.slice.call(arguments); | |
if (!args.length) return; | |
var js = '' | |
, name = ''; | |
for (var i = 0; i < args.length; i++) { | |
try { | |
console.log('minifying ' + args[i] + '.js'); | |
js += ' ' + fs.readFileSync(__dirname + '/' + args[i] + '.js').toString(); | |
name += ' ' + args[i] + '.js'; | |
} catch (err) { | |
console.log(err); | |
return; | |
} | |
} | |
var ast = uglify.parser.parse(js); | |
ast = uglify.uglify.ast_mangle(ast); | |
ast = uglify.uglify.ast_squeeze(ast); | |
var minifiedJS = uglify.uglify.gen_code(ast); | |
console.log('writing to ' + args[0] + '.js'); | |
fs.writeFile(__dirname + '/' + args[0] + '.min.js', header(name) + minifiedJS); | |
} | |
console.log('building and minifying ...'); | |
// make minified file from single js file | |
buildFile('filename_minus_js_extension'); | |
// or combine files | |
buildFile('filename_minus_js_extension', 'another_file'); | |
console.log('done'); |
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