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uglify-save-license
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A support module for UglifyJS to detect and preserve license comments
// Backbone.js 1.1.2
// (c) 2010-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// Backbone may be freely distributed under the MIT license.
// For all details and documentation:
// http://backbonejs.org
(function(root, factory) {
// Set up Backbone appropriately for the environment. Start with AMD.
if (typeof define === 'function' && define.amd) {
define(['underscore', 'jquery', 'exports'], function(_, $, exports) {
//...
↓
// Backbone.js 1.1.2
// (c) 2010-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// Backbone may be freely distributed under the MIT license.
// For all details and documentation:
// http://backbonejs.org
!function(a,b){if("function"==typeof define&&define.amd)define(["underscore","jquery","exports"],function(c,d,e){a.Backbone=b(a,e,c,d)});else if("undefined"!=typeof exports){...
This module enables us to preserve license comments when using UglifyJS.
Even if the license statement is in multiple line comments, or the comment has no directive such as @license
and /*!
, this module keeps them readable.
Install with npm. (Make sure you have installed Node.)
npm install --save-dev uglify-save-license
First of all, load uglify-save-license
module.
var saveLicense = require('uglify-save-license');
Pass this module to the comments
option.
var result = UglifyJS.minify('file1.js', {
output: {
comments: saveLicense
}
});
Pass this module to the preserveComments
option.
grunt.initConfig({
uglify: {
my_target: {
options: {
preserveComments: saveLicense
},
src: ['src/app.js'],
dest: 'dest/app.min.js'
}
}
});
uglify-save-license checks each comment token of a JavaScript file. The comment will be regarded as a license statement and preserved after compression, if it meets at least one of the following requirements:
MIT
and Copyright
.uglify-example.js
)#!/usr/bin/env node
var UglifyJS = require('uglify-js'),
saveLicense = require('uglify-save-license');
var minified = UglifyJS.minify(process.argv[2], {
output: {
comments: saveLicense
}
}).code;
console.log(minified);
// First line
// (c) 2014 John <- contains '(c)'
// The previous line is preserved
// This line won't be preserved.
(function(win, doc) {
var str = 'Hello World! :' + doc.title;
// This line will not, too.
console.log(str);
}(window, document));
node uglify-example.js <target filename>
// First line
// (c) 2014 John <- contains '(c)'
// The previous line is preserved
!function(o,l){var n="Hello World! :"+l.title;console.log(n)}(window,document);
module.exports = (grunt) ->
grunt.loadNpmTasks 'grunt-contrib-uglify'
grunt.loadNpmTasks 'grunt-contrib-concat'
grunt.loadNpmTasks 'grunt-contrib-clean'
grunt.initConfig
uglify:
target:
options:
preserveComments: require 'uglify-save-license'
files: [
expand: true
flatten: true
cwd: 'path/to/src'
src: ['**/*.js']
dest: 'tmp/'
]
concat:
js:
src: ['tmp/*.js']
dest: 'path/to/build/app.js'
clean:
tmpdir: ['tmp']
grunt.registerTask 'default' ['uglify', 'concat', 'clean']
uglify-save-license is inspired by grunt-license-saver and I used it as reference. Thanks, kyo-ago.
Copyright (c) 2013 - 2014 Shinnosuke Watanabe
Licensed under the MIT license.
FAQs
License detector for UglifyJS
The npm package uglify-save-license receives a total of 91,835 weekly downloads. As such, uglify-save-license popularity was classified as popular.
We found that uglify-save-license demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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