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Rework build.js to work as a module and add a "silent" mode to minify.js.

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Former-commit-id: cf62532b957d37da77a2d64aa64d2d388e6382ae
This commit is contained in:
John-David Dalton
2012-09-06 22:04:24 -07:00
parent e3ec76418b
commit fa9df75cf7
2 changed files with 76 additions and 32 deletions
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28
build.js
View File

@@ -265,6 +265,7 @@
' Options:',
'',
' -h, --help Display help information',
' -s, --silent Skip printing status updates to the console',
' -V, --version Output current version of Lo-Dash',
''
].join('\n'));
@@ -664,6 +665,9 @@
// flag used to specify a mobile build
var isMobile = !isLegacy && (isCSP || isUnderscore || options.indexOf('mobile') > -1);
// flag used to specify skipping status updates to the console
var isSilent = options.indexOf('-s') > -1 || options.indexOf('--silent') > -1;
// flag used to specify `_.bindAll`, `_.extend`, and `_.defaults` are
// constructed using the "use strict" directive
var isStrict = options.indexOf('strict') > -1;
@@ -1200,17 +1204,25 @@
if (filterType || isBackbone || isLegacy || isMobile || isStrict || isUnderscore) {
callback(path.join(cwd, 'lodash.custom.js'), debugSource);
minify(source, 'lodash.custom.min', function(source) {
if (isStrict) {
// inject "use strict" directive
source = source.replace(/^(\/\*![\s\S]+?\*\/\n;\(function[^)]+\){)([^'"])/, '$1"use strict";$2');
minify(source, {
'silent': isSilent,
'workingName': 'lodash.custom.min',
'onComplete': function(source) {
if (isStrict) {
// inject "use strict" directive
source = source.replace(/^(\/\*![\s\S]+?\*\/\n;\(function[^)]+\){)([^'"])/, '$1"use strict";$2');
}
callback(path.join(cwd, 'lodash.custom.min.js'), postMinify(source));
}
callback(path.join(cwd, 'lodash.custom.min.js'), postMinify(source));
});
}
else {
minify(source, 'lodash.min', function(source) {
callback(path.join(cwd, 'lodash.min.js'), postMinify(source));
minify(source, {
'silent': isSilent,
'workingName': 'lodash.min',
'onComplete': function(source) {
callback(path.join(cwd, 'lodash.min.js'), postMinify(source));
}
});
}
}
@@ -1224,7 +1236,7 @@
else {
// or invoked directly
build(process.argv.slice(2), function(filepath, source) {
fs.writeFileSync(filepath, source);
fs.writeFileSync(filepath, source, 'utf8');
});
}
}());

80
build/minify.js
View File

@@ -38,11 +38,11 @@
* the `onComplete` callback when finished.
*
* @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.
* @param {Object} options The options object containing `onComplete`, `silent`,
* and `workingName`.
*/
function minify(source, workingName, onComplete) {
new Minify(source, workingName, onComplete);
function minify(source, options) {
new Minify(source, options);
}
/**
@@ -51,10 +51,17 @@
* @private
* @constructor
* @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.
* @param {Object} options The options object containing `onComplete`, `silent`,
* and `workingName`.
*/
function Minify(source, workingName, onComplete) {
function Minify(source, options) {
source || (source = '');
options || (options = {});
if (typeof source != 'string') {
options = source || options;
source = options.source || '';
}
// create the destination directory if it doesn't exist
if (!fs.existsSync(distPath)) {
// avoid errors when called as a npm executable
@@ -63,12 +70,15 @@
} catch(e) { }
}
source = preprocess(source);
this.compiled = {};
this.hybrid = {};
this.uglified = {};
this.onComplete = onComplete;
this.source = source = preprocess(source);
this.workingName = workingName;
this.isSilent = !!options.silent;
this.onComplete = options.onComplete || function() {};
this.source = source;
this.workingName = options.workingName || 'temp';
// begin the minification process
closureCompile.call(this, source, onClosureCompile.bind(this));
@@ -97,10 +107,12 @@
message = null;
}
console.log(message == null
? 'Compressing ' + this.workingName + ' using the Closure Compiler...'
: message
);
if (!this.isSilent) {
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
@@ -148,10 +160,12 @@
message = null;
}
console.log(message == null
? 'Compressing ' + this.workingName + ' using UglifyJS...'
: message
);
if (!this.isSilent) {
console.log(message == null
? 'Compressing ' + this.workingName + ' using UglifyJS...'
: message
);
}
try {
result = ugly.gen_code(
@@ -202,9 +216,12 @@
if (exception) {
throw exception;
}
if (!this.isSilent) {
console.log('Done. Size: %d bytes.', result.length);
}
// store the gzipped result and report the size
this.compiled.gzip = result;
console.log('Done. Size: %d bytes.', result.length);
// next, minify the source using only UglifyJS
uglify.call(this, this.source, onUglify.bind(this));
@@ -237,11 +254,13 @@
if (exception) {
throw exception;
}
if (!this.isSilent) {
console.log('Done. Size: %d bytes.', result.length);
}
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 bytes.', result.length);
// next, minify the Closure Compiler minified source using UglifyJS
uglify.call(this, this.compiled.source, message, onHybrid.bind(this));
@@ -274,9 +293,11 @@
if (exception) {
throw exception;
}
if (!this.isSilent) {
console.log('Done. Size: %d bytes.', result.length);
}
// store the gzipped result and report the size
this.hybrid.gzip = result;
console.log('Done. Size: %d bytes.', result.length);
// finish by choosing the smallest compressed file
onComplete.call(this);
@@ -333,13 +354,24 @@
// was invoked directly (e.g. `node minify.js source.js`) and write to
// `<filename>.min.js`
(function() {
var filePath = process.argv[2],
var options = process.argv;
if (options.length < 3) {
return;
}
var filePath = options[options.length - 1],
dirPath = path.dirname(filePath),
outputPath = path.join(dirPath, workingName + '.js'),
isSilent = options.indexOf('-s') > -1 || options.indexOf('--silent') > -1,
source = fs.readFileSync(filePath, 'utf8'),
workingName = path.basename(filePath, '.js') + '.min';
minify(source, workingName, function(result) {
fs.writeFileSync(path.join(dirPath, workingName + '.js'), result, 'utf8');
minify(source, {
'silent': isSilent,
'workingName': workingName,
'onComplete': function(source) {
fs.writeFileSync(outputPath, source, 'utf8');
}
});
}());
}