mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-01-29 06:27:49 +00:00
Update the build process.
Former-commit-id: bc80960e1608982354366a37813785c277868d52
This commit is contained in:
John-David Dalton
1
.gitignore
vendored
1
.gitignore
vendored
@@ -1,2 +1,3 @@
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.DS_Store
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dist/
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node_modules/
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281
build.js
281
build.js
@@ -2,286 +2,23 @@
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;(function() {
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'use strict';
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||||
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||||
/** The Node filesystem, path, `zlib`, and child process modules */
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||||
/** The Node filesystem and path modules */
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var fs = require('fs'),
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gzip = require('zlib').gzip,
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path = require('path'),
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spawn = require('child_process').spawn;
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path = require('path');
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/** The build directory containing the build scripts */
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var buildPath = path.join(__dirname, 'build');
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/** The directory where the Closure Compiler is located */
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var closurePath = path.join(__dirname, 'vendor', 'closure-compiler', 'compiler.jar');
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/** The minify module */
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var Minify = require(path.join(buildPath, 'minify'));
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/** The distribution directory */
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var distPath = path.join(__dirname, 'dist');
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/** Load other modules */
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var preprocess = require(path.join(buildPath, 'pre-compile')),
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postprocess = require(path.join(buildPath, 'post-compile')),
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uglifyJS = require(path.join(__dirname, 'vendor', 'uglifyjs', 'uglify-js'));
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/** Used to shares values between multiple callbacks */
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var accumulator = {
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'compiled': {},
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'hybrid': {},
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'uglified': {}
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};
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/** Closure Compiler command-line options */
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var closureOptions = [
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'--compilation_level=ADVANCED_OPTIMIZATIONS',
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'--language_in=ECMASCRIPT5_STRICT',
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'--warning_level=QUIET'
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];
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/** The pre-processed Lo-Dash source */
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var source = preprocess(fs.readFileSync(path.join(__dirname, 'lodash.js'), 'utf8'));
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/** The lodash.js source */
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var source = fs.readFileSync(path.join(__dirname, 'lodash.js'), 'utf8');
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/*--------------------------------------------------------------------------*/
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/**
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* Compresses a `source` string using the Closure Compiler. Yields the
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* minified result, and any exceptions encountered, to a `callback` function.
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*
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* @private
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* @param {String} source The JavaScript source to minify.
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* @param {String} [message] The message to log.
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* @param {Function} callback The function to call once the process completes.
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*/
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function closureCompile(source, message, callback) {
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// the standard error stream, standard output stream, and Closure Compiler process
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var error = '',
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output = '',
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compiler = spawn('java', ['-jar', closurePath].concat(closureOptions));
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// juggle arguments
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if (typeof message == 'function') {
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callback = message;
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message = null;
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}
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console.log(message == null ? 'Compressing lodash.js using the Closure Compiler...' : message);
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compiler.stdout.on('data', function(data) {
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// append the data to the output stream
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output += data;
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});
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compiler.stderr.on('data', function(data) {
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// append the error message to the error stream
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error += data;
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});
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compiler.on('exit', function(status) {
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var exception = null;
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// `status` contains the process exit code
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if (status) {
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exception = new Error(error);
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exception.status = status;
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}
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callback(exception, output);
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});
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// proxy the standard input to the Closure Compiler
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compiler.stdin.end(source);
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}
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/**
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* Compresses a `source` string using UglifyJS. Yields the result to a
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* `callback` function. This function is synchronous; the `callback` is used
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* for symmetry.
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*
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* @private
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* @param {String} source The JavaScript source to minify.
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* @param {String} [message] The message to log.
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* @param {Function} callback The function to call once the process completes.
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*/
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function uglify(source, message, callback) {
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var exception,
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result,
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ugly = uglifyJS.uglify;
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// juggle arguments
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if (typeof message == 'function') {
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callback = message;
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message = null;
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}
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console.log(message == null ? 'Compressing lodash.js using UglifyJS...' : message);
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try {
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result = ugly.gen_code(
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// enable unsafe transformations
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ugly.ast_squeeze_more(
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ugly.ast_squeeze(
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// munge variable and function names, excluding the special `define`
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// function exposed by AMD loaders
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ugly.ast_mangle(uglifyJS.parser.parse(source), {
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'except': ['define']
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}
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))), {
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'ascii_only': true
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});
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} catch(e) {
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exception = e;
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}
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// lines are restricted to 500 characters for consistency with the Closure Compiler
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callback(exception, result && ugly.split_lines(result, 500));
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}
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/*--------------------------------------------------------------------------*/
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/**
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* The `closureCompile()` callback.
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*
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* @private
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* @param {Object|Undefined} exception The error object.
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* @param {String} result The resulting minified source.
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*/
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function onClosureCompile(exception, result) {
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if (exception) {
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throw exception;
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}
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// store the post-processed Closure Compiler result and gzip it
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accumulator.compiled.source = result = postprocess(result);
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gzip(result, onClosureGzip);
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}
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/**
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* The Closure Compiler `gzip` callback.
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*
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* @private
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* @param {Object|Undefined} exception The error object.
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* @param {Buffer} result The resulting gzipped source.
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*/
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function onClosureGzip(exception, result) {
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if (exception) {
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throw exception;
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}
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// store the gzipped result and report the size
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accumulator.compiled.gzip = result;
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console.log('Done. Size: %d KB.', result.length);
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// next, minify the source using only UglifyJS
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uglify(source, onUglify);
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}
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/**
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* The `uglify()` callback.
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*
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* @private
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* @param {Object|Undefined} exception The error object.
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* @param {String} result The resulting minified source.
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*/
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function onUglify(exception, result) {
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if (exception) {
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throw exception;
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}
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// store the post-processed Uglified result and gzip it
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accumulator.uglified.source = result = postprocess(result);
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gzip(result, onUglifyGzip);
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}
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/**
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* The UglifyJS `gzip` callback.
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*
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* @private
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* @param {Object|Undefined} exception The error object.
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* @param {Buffer} result The resulting gzipped source.
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*/
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function onUglifyGzip(exception, result) {
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if (exception) {
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throw exception;
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}
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var message = 'Compressing lodash.js combining Closure Compiler and UglifyJS...';
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// store the gzipped result and report the size
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accumulator.uglified.gzip = result;
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console.log('Done. Size: %d KB.', result.length);
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// next, minify the Closure Compiler minified source using UglifyJS
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uglify(accumulator.compiled.source, message, onHybrid);
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}
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/**
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* The hybrid `uglify()` callback.
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||||
*
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* @private
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||||
* @param {Object|Undefined} exception The error object.
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||||
* @param {String} result The resulting minified source.
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||||
*/
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||||
function onHybrid(exception, result) {
|
||||
if (exception) {
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throw exception;
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}
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// store the post-processed Uglified result and gzip it
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accumulator.hybrid.source = result = postprocess(result);
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gzip(result, onHybridGzip);
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}
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|
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/**
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* The hybrid `gzip` callback.
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||||
*
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* @private
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* @param {Object|Undefined} exception The error object.
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* @param {Buffer} result The resulting gzipped source.
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*/
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function onHybridGzip(exception, result) {
|
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if (exception) {
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throw exception;
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}
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// store the gzipped result and report the size
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accumulator.hybrid.gzip = result;
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console.log('Done. Size: %d KB.', result.length);
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// finish by choosing the smallest compressed file
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onComplete();
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}
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/**
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* The callback executed after JavaScript source is minified and gzipped.
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*
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* @private
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*/
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function onComplete() {
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var compiled = accumulator.compiled,
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hybrid = accumulator.hybrid,
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uglified = accumulator.uglified;
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// save the Closure Compiled version to disk
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fs.writeFileSync(path.join(distPath, 'lodash.compiler.js'), compiled.source);
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fs.writeFileSync(path.join(distPath, 'lodash.compiler.js.gz'), compiled.gzip);
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// save the Uglified version to disk
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fs.writeFileSync(path.join(distPath, 'lodash.uglify.js'), uglified.source);
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fs.writeFileSync(path.join(distPath, 'lodash.uglify.js.gz'), uglified.gzip);
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// save the hybrid minified version to disk
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fs.writeFileSync(path.join(distPath, 'lodash.hybrid.js'), hybrid.source);
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fs.writeFileSync(path.join(distPath, 'lodash.hybrid.js.gz'), hybrid.gzip);
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// select the smallest gzipped file and use its minified counterpart as the
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// official minified release (ties go to Closure Compiler)
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var min = Math.min(compiled.gzip.length, hybrid.gzip.length, uglified.gzip.length);
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fs.writeFileSync(path.join(__dirname, 'lodash.min.js'),
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compiled.gzip.length == min
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? compiled.source
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: uglified.gzip.length == min
|
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? uglified.source
|
||||
: hybrid.source
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||||
);
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}
|
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|
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/*--------------------------------------------------------------------------*/
|
||||
|
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// create the destination directory if it doesn't exist
|
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if (!path.existsSync(distPath)) {
|
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fs.mkdirSync(distPath);
|
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}
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// begin the minification process
|
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closureCompile(source, onClosureCompile);
|
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new Minify(source, 'lodash.min', function(result) {
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fs.writeFileSync(path.join(__dirname, 'lodash.min.js'), result);
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||||
});
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||||
}());
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327
build/minify.js
Executable file
327
build/minify.js
Executable file
@@ -0,0 +1,327 @@
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#!/usr/bin/env node
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||||
;(function() {
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||||
'use strict';
|
||||
|
||||
/** The Node filesystem, path, `zlib`, and child process modules */
|
||||
var fs = require('fs'),
|
||||
gzip = require('zlib').gzip,
|
||||
path = require('path'),
|
||||
spawn = require('child_process').spawn;
|
||||
|
||||
/** The directory that is the base of the repository */
|
||||
var basePath = path.join(__dirname, '../');
|
||||
|
||||
/** The directory where the Closure Compiler is located */
|
||||
var closurePath = path.join(basePath, 'vendor', 'closure-compiler', 'compiler.jar');
|
||||
|
||||
/** The distribution directory */
|
||||
var distPath = path.join(basePath, 'dist');
|
||||
|
||||
/** Load other modules */
|
||||
var preprocess = require(path.join(__dirname, 'pre-compile')),
|
||||
postprocess = require(path.join(__dirname, 'post-compile')),
|
||||
uglifyJS = require(path.join(basePath, 'vendor', 'uglifyjs', 'uglify-js'));
|
||||
|
||||
/** Closure Compiler command-line options */
|
||||
var closureOptions = [
|
||||
'--compilation_level=ADVANCED_OPTIMIZATIONS',
|
||||
'--language_in=ECMASCRIPT5_STRICT',
|
||||
'--warning_level=QUIET'
|
||||
];
|
||||
|
||||
/** Used to match the file extension of a file path */
|
||||
var reExtension = /\.[^.]+$/;
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Minify a given JavaScript `source`.
|
||||
*
|
||||
* @param {String} source The source to minify.
|
||||
* @param {String} workingName The name to give temporary files creates during the minification process.
|
||||
* @param {Function} onComplete A function called when minification has completed.
|
||||
*/
|
||||
function Minify(source, workingName, onComplete) {
|
||||
// create the destination directory if it doesn't exist
|
||||
if (!path.existsSync(distPath)) {
|
||||
fs.mkdirSync(distPath);
|
||||
}
|
||||
|
||||
this.compiled = {};
|
||||
this.hybrid = {};
|
||||
this.uglified = {};
|
||||
this.onComplete = onComplete;
|
||||
this.source = source = preprocess(source);
|
||||
this.workingName = workingName;
|
||||
|
||||
// begin the minification process
|
||||
closureCompile.call(this, source, onClosureCompile.bind(this));
|
||||
}
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Compresses a `source` string using the Closure Compiler. Yields the
|
||||
* minified result, and any exceptions encountered, to a `callback` function.
|
||||
*
|
||||
* @private
|
||||
* @param {String} source The JavaScript source to minify.
|
||||
* @param {String} [message] The message to log.
|
||||
* @param {Function} callback The function to call once the process completes.
|
||||
*/
|
||||
function closureCompile(source, message, callback) {
|
||||
// the standard error stream, standard output stream, and Closure Compiler process
|
||||
var error = '',
|
||||
output = '',
|
||||
compiler = spawn('java', ['-jar', closurePath].concat(closureOptions));
|
||||
|
||||
// juggle arguments
|
||||
if (typeof message == 'function') {
|
||||
callback = message;
|
||||
message = null;
|
||||
}
|
||||
|
||||
console.log(message == null
|
||||
? 'Compressing ' + this.workingName + ' using the Closure Compiler...'
|
||||
: message
|
||||
);
|
||||
|
||||
compiler.stdout.on('data', function(data) {
|
||||
// append the data to the output stream
|
||||
output += data;
|
||||
});
|
||||
|
||||
compiler.stderr.on('data', function(data) {
|
||||
// append the error message to the error stream
|
||||
error += data;
|
||||
});
|
||||
|
||||
compiler.on('exit', function(status) {
|
||||
var exception = null;
|
||||
|
||||
// `status` contains the process exit code
|
||||
if (status) {
|
||||
exception = new Error(error);
|
||||
exception.status = status;
|
||||
}
|
||||
callback(exception, output);
|
||||
});
|
||||
|
||||
// proxy the standard input to the Closure Compiler
|
||||
compiler.stdin.end(source);
|
||||
}
|
||||
|
||||
/**
|
||||
* Compresses a `source` string using UglifyJS. Yields the result to a
|
||||
* `callback` function. This function is synchronous; the `callback` is used
|
||||
* for symmetry.
|
||||
*
|
||||
* @private
|
||||
* @param {String} source The JavaScript source to minify.
|
||||
* @param {String} [message] The message to log.
|
||||
* @param {Function} callback The function to call once the process completes.
|
||||
*/
|
||||
function uglify(source, message, callback) {
|
||||
var exception,
|
||||
result,
|
||||
ugly = uglifyJS.uglify;
|
||||
|
||||
// juggle arguments
|
||||
if (typeof message == 'function') {
|
||||
callback = message;
|
||||
message = null;
|
||||
}
|
||||
|
||||
console.log(message == null
|
||||
? 'Compressing ' + this.workingName + ' using UglifyJS...'
|
||||
: message
|
||||
);
|
||||
|
||||
try {
|
||||
result = ugly.gen_code(
|
||||
// enable unsafe transformations
|
||||
ugly.ast_squeeze_more(
|
||||
ugly.ast_squeeze(
|
||||
// munge variable and function names, excluding the special `define`
|
||||
// function exposed by AMD loaders
|
||||
ugly.ast_mangle(uglifyJS.parser.parse(source), {
|
||||
'except': ['define']
|
||||
}
|
||||
))), {
|
||||
'ascii_only': true
|
||||
});
|
||||
} catch(e) {
|
||||
exception = e;
|
||||
}
|
||||
// lines are restricted to 500 characters for consistency with the Closure Compiler
|
||||
callback(exception, result && ugly.split_lines(result, 500));
|
||||
}
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* The `closureCompile()` callback.
|
||||
*
|
||||
* @private
|
||||
* @param {Object|Undefined} exception The error object.
|
||||
* @param {String} result The resulting minified source.
|
||||
*/
|
||||
function onClosureCompile(exception, result) {
|
||||
if (exception) {
|
||||
throw exception;
|
||||
}
|
||||
// store the post-processed Closure Compiler result and gzip it
|
||||
this.compiled.source = result = postprocess(result);
|
||||
gzip(result, onClosureGzip.bind(this));
|
||||
}
|
||||
|
||||
/**
|
||||
* The Closure Compiler `gzip` callback.
|
||||
*
|
||||
* @private
|
||||
* @param {Object|Undefined} exception The error object.
|
||||
* @param {Buffer} result The resulting gzipped source.
|
||||
*/
|
||||
function onClosureGzip(exception, result) {
|
||||
if (exception) {
|
||||
throw exception;
|
||||
}
|
||||
// store the gzipped result and report the size
|
||||
this.compiled.gzip = result;
|
||||
console.log('Done. Size: %d KB.', result.length);
|
||||
|
||||
// next, minify the source using only UglifyJS
|
||||
uglify.call(this, this.source, onUglify.bind(this));
|
||||
}
|
||||
|
||||
/**
|
||||
* The `uglify()` callback.
|
||||
*
|
||||
* @private
|
||||
* @param {Object|Undefined} exception The error object.
|
||||
* @param {String} result The resulting minified source.
|
||||
*/
|
||||
function onUglify(exception, result) {
|
||||
if (exception) {
|
||||
throw exception;
|
||||
}
|
||||
// store the post-processed Uglified result and gzip it
|
||||
this.uglified.source = result = postprocess(result);
|
||||
gzip(result, onUglifyGzip.bind(this));
|
||||
}
|
||||
|
||||
/**
|
||||
* The UglifyJS `gzip` callback.
|
||||
*
|
||||
* @private
|
||||
* @param {Object|Undefined} exception The error object.
|
||||
* @param {Buffer} result The resulting gzipped source.
|
||||
*/
|
||||
function onUglifyGzip(exception, result) {
|
||||
if (exception) {
|
||||
throw exception;
|
||||
}
|
||||
var message = 'Compressing ' + this.workingName + ' using hybrid minification...';
|
||||
|
||||
// store the gzipped result and report the size
|
||||
this.uglified.gzip = result;
|
||||
console.log('Done. Size: %d KB.', result.length);
|
||||
|
||||
// next, minify the Closure Compiler minified source using UglifyJS
|
||||
uglify.call(this, this.compiled.source, message, onHybrid.bind(this));
|
||||
}
|
||||
|
||||
/**
|
||||
* The hybrid `uglify()` callback.
|
||||
*
|
||||
* @private
|
||||
* @param {Object|Undefined} exception The error object.
|
||||
* @param {String} result The resulting minified source.
|
||||
*/
|
||||
function onHybrid(exception, result) {
|
||||
if (exception) {
|
||||
throw exception;
|
||||
}
|
||||
// store the post-processed Uglified result and gzip it
|
||||
this.hybrid.source = result = postprocess(result);
|
||||
gzip(result, onHybridGzip.bind(this));
|
||||
}
|
||||
|
||||
/**
|
||||
* The hybrid `gzip` callback.
|
||||
*
|
||||
* @private
|
||||
* @param {Object|Undefined} exception The error object.
|
||||
* @param {Buffer} result The resulting gzipped source.
|
||||
*/
|
||||
function onHybridGzip(exception, result) {
|
||||
if (exception) {
|
||||
throw exception;
|
||||
}
|
||||
// store the gzipped result and report the size
|
||||
this.hybrid.gzip = result;
|
||||
console.log('Done. Size: %d KB.', result.length);
|
||||
|
||||
// finish by choosing the smallest compressed file
|
||||
onComplete.call(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* The callback executed after JavaScript source is minified and gzipped.
|
||||
*
|
||||
* @private
|
||||
*/
|
||||
function onComplete() {
|
||||
var compiled = this.compiled,
|
||||
hybrid = this.hybrid,
|
||||
name = this.workingName,
|
||||
uglified = this.uglified;
|
||||
|
||||
// save the Closure Compiled version to disk
|
||||
fs.writeFileSync(path.join(distPath, name + '.compiler.js'), compiled.source);
|
||||
fs.writeFileSync(path.join(distPath, name + '.compiler.js.gz'), compiled.gzip);
|
||||
|
||||
// save the Uglified version to disk
|
||||
fs.writeFileSync(path.join(distPath, name + '.uglify.js'), uglified.source);
|
||||
fs.writeFileSync(path.join(distPath, name + '.uglify.js.gz'), uglified.gzip);
|
||||
|
||||
// save the hybrid minified version to disk
|
||||
fs.writeFileSync(path.join(distPath, name + '.hybrid.js'), hybrid.source);
|
||||
fs.writeFileSync(path.join(distPath, name + '.hybrid.js.gz'), hybrid.gzip);
|
||||
|
||||
// select the smallest gzipped file and use its minified counterpart as the
|
||||
// official minified release (ties go to Closure Compiler)
|
||||
var min = Math.min(compiled.gzip.length, hybrid.gzip.length, uglified.gzip.length);
|
||||
|
||||
// pass the minified source to the minify instances "onComplete" callback
|
||||
this.onComplete(
|
||||
compiled.gzip.length == min
|
||||
? compiled.source
|
||||
: uglified.gzip.length == min
|
||||
? uglified.source
|
||||
: hybrid.source
|
||||
);
|
||||
}
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
|
||||
// expose `Minify`
|
||||
if (module != require.main) {
|
||||
module.exports = Minify;
|
||||
}
|
||||
else {
|
||||
// read the JavaScript source file from the first argument if the script
|
||||
// was invoked directly (e.g. `node minify.js source.js`) and write to
|
||||
// the same file
|
||||
(function() {
|
||||
var filePath = process.argv[2],
|
||||
dirPath = path.dirname(filePath),
|
||||
source = fs.readFileSync(filePath, 'utf8'),
|
||||
workingName = path.basename(filePath, '.js') + '.min';
|
||||
|
||||
new Minify(source, workingName, function(result) {
|
||||
fs.writeFileSync(path.join(dirPath, workingName + '.js'));
|
||||
});
|
||||
}());
|
||||
}
|
||||
}());
|
||||
@@ -105,7 +105,6 @@
|
||||
/**
|
||||
* Pre-process a given JavaScript `source`, preparing it for minification.
|
||||
*
|
||||
* @private
|
||||
* @param {String} source The source to process.
|
||||
* @returns {String} Returns the processed source.
|
||||
*/
|
||||
@@ -130,7 +129,7 @@
|
||||
// minify `_.sortBy` internal properties
|
||||
(function() {
|
||||
var properties = ['criteria', 'value'],
|
||||
snippet = source.match(RegExp('( +)function sortBy[\\s\\S]+?\\n\\1}'))[0],
|
||||
snippet = source.match(/( +)function sortBy[\s\S]+?\n\1}/)[0],
|
||||
result = snippet;
|
||||
|
||||
// minify property strings
|
||||
|
||||
Reference in New Issue
Block a user