Imagemin.prototype._getOptimizer = function (ext) {
ext = ext ? ext.toLowerCase() : null;
var optimizers = {
'.gif': this._optimizeGif,
'.jpg': this._optimizeJpeg,
'.jpeg': this._optimizeJpeg,
'.png': this._optimizePng
};
return map(optimizers, ext);
};
extList(function (err, res) {
if (err) {
return cb(err);
}
var obj = {};
var key = Object.keys(res).sort(function (a, b) {
return b.length - a.length;
});
for (var i = 0; i < Object.keys(res).length; i++) {
obj[key[i]] = res[key[i]];
}
var mime = map(obj, str);
var ext = Object.keys(obj).filter(function (key) {
return endsWith(str, key);
})[0] || path.extname(str);
cb(null, mime ? { ext: ext, mime: mime } : { ext: ext });
});
Decompress.prototype._getExtractor = function (src) {
src = src.toLowerCase();
return map(this.extractors, src);
};