lml-main
Version:
This is now a mono repository published into many standalone packages.
227 lines (174 loc) • 9.33 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); /*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
var _url = require('url');
var _url2 = _interopRequireDefault(_url);
var _async = require('async');
var _async2 = _interopRequireDefault(_async);
var _RawSource = require('webpack-sources/lib/RawSource');
var _RawSource2 = _interopRequireDefault(_RawSource);
var _ModuleFilenameHelpers = require('webpack/lib/ModuleFilenameHelpers');
var _ModuleFilenameHelpers2 = _interopRequireDefault(_ModuleFilenameHelpers);
var _cacache = require('cacache');
var _cacache2 = _interopRequireDefault(_cacache);
var _findCacheDir = require('find-cache-dir');
var _findCacheDir2 = _interopRequireDefault(_findCacheDir);
var _serializeJavascript = require('serialize-javascript');
var _serializeJavascript2 = _interopRequireDefault(_serializeJavascript);
var _package = require('../package.json');
var _package2 = _interopRequireDefault(_package);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var CompressionPlugin = function () {
function CompressionPlugin() {
var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
_classCallCheck(this, CompressionPlugin);
var _options$asset = options.asset,
asset = _options$asset === undefined ? '[path].gz[query]' : _options$asset,
test = options.test,
regExp = options.regExp,
_options$algorithm = options.algorithm,
algorithm = _options$algorithm === undefined ? 'gzip' : _options$algorithm,
_options$filename = options.filename,
filename = _options$filename === undefined ? false : _options$filename,
_options$compressionO = options.compressionOptions,
compressionOptions = _options$compressionO === undefined ? {} : _options$compressionO,
_options$cache = options.cache,
cache = _options$cache === undefined ? false : _options$cache,
_options$threshold = options.threshold,
threshold = _options$threshold === undefined ? 0 : _options$threshold,
_options$minRatio = options.minRatio,
minRatio = _options$minRatio === undefined ? 0.8 : _options$minRatio,
_options$deleteOrigin = options.deleteOriginalAssets,
deleteOriginalAssets = _options$deleteOrigin === undefined ? false : _options$deleteOrigin;
this.options = {
asset,
test,
regExp,
algorithm,
filename,
compressionOptions,
cache,
threshold,
minRatio,
deleteOriginalAssets
};
if (typeof algorithm === 'string') {
// eslint-disable-next-line global-require
var zlib = require('zlib');
this.options.algorithm = zlib[this.options.algorithm];
if (!this.options.algorithm) {
throw new Error('Algorithm not found in zlib');
}
this.options.compressionOptions = {
level: options.level || 9,
flush: options.flush,
chunkSize: options.chunkSize,
windowBits: options.windowBits,
memLevel: options.memLevel,
strategy: options.strategy,
dictionary: options.dictionary
};
}
}
_createClass(CompressionPlugin, [{
key: 'apply',
value: function apply(compiler) {
var _this = this;
compiler.plugin('emit', function (compilation, callback) {
var _options = _this.options,
cache = _options.cache,
threshold = _options.threshold,
minRatio = _options.minRatio,
assetName = _options.asset,
filename = _options.filename,
deleteOriginalAssets = _options.deleteOriginalAssets;
var cacheDir = cache === true ? (0, _findCacheDir2.default)({ name: 'compression-webpack-plugin' }) : cache;
var assets = compilation.assets;
// eslint-disable-next-line consistent-return
_async2.default.forEach(Object.keys(assets), function (file, cb) {
if (!_ModuleFilenameHelpers2.default.matchObject(_this.options, file)) {
return cb();
}
var asset = assets[file];
var content = asset.source();
if (!Buffer.isBuffer(content)) {
content = new Buffer(content, 'utf8');
}
var originalSize = content.length;
if (originalSize < threshold) {
return cb();
}
return Promise.resolve().then(function () {
if (cache) {
var cacheKey = (0, _serializeJavascript2.default)({
// Invalidate cache after upgrade `zlib` module (build-in in `nodejs`)
node: process.version,
'compression-webpack-plugin': _package2.default.version,
'compression-webpack-plugin-options': _this.options,
file,
content
});
return _cacache2.default.get(cacheDir, cacheKey).then(function (result) {
return result.data;
}, function () {
return Promise.resolve().then(function () {
return _this.compress(content);
}).then(function (data) {
return _cacache2.default.put(cacheDir, cacheKey, data).then(function () {
return data;
});
});
});
}
return _this.compress(content);
}).then(function (result) {
if (result.length / originalSize > minRatio) {
return cb();
}
var parse = _url2.default.parse(file);
var sub = {
file,
path: parse.pathname,
query: parse.query || ''
};
var newAssetName = assetName.replace(/\[(file|path|query)\]/g, function (p0, p1) {
return sub[p1];
});
if (typeof filename === 'function') {
newAssetName = filename(newAssetName);
}
assets[newAssetName] = new _RawSource2.default(result);
if (deleteOriginalAssets) {
delete assets[file];
}
return cb();
}).catch(cb);
}, callback);
});
}
}, {
key: 'compress',
value: function compress(content) {
var _this2 = this;
return new Promise(function (resolve, reject) {
var _options2 = _this2.options,
algorithm = _options2.algorithm,
compressionOptions = _options2.compressionOptions;
algorithm(content, compressionOptions, function (error, result) {
if (error) {
return reject(error);
}
return resolve(result);
});
});
}
}]);
return CompressionPlugin;
}();
exports.default = CompressionPlugin;