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.then(function (format) {
switch (format) {
case 'JPEG':
var jpegtran = require('jpegtran-bin').path;
return Q.nfcall(execFile, jpegtran, ['-copy', 'none', '-optimize', '-outfile', dst, src]);
case 'PNG':
var optipng = require('optipng-bin').path;
return Q.nfcall(execFile, optipng, ['-quiet', '-force', '-strip', 'all', '-out', dst, src]);
case 'GIF':
var gifsicle = require('gifsicle').path;
return Q.nfcall(execFile, gifsicle, ['--careful', '-w', '-o', dst, src]);
}
// unsupported format!?
// simply convert it without profile data!
return convert(src, dst);
});
}
Imagemin.prototype._optimizeJpeg = function () {
var args = ['-copy', 'none', '-optimize'];
var jpegtran = require('jpegtran-bin').path;
if (this.opts.progressive) {
args.push('-progressive');
}
return spawn(jpegtran, args);
};
'use strict';
var execFile = require('child_process').execFile;
var fs = require('fs');
var imageType = require('image-type');
var jpegtran = require('jpegtran-bin').path;
var tempfile = require('tempfile');
var rm = require('rimraf');
/**
* jpegtran image-min plugin
*
* @param {Object} opts
* @api public
*/
module.exports = function (opts) {
opts = opts || {};
return function (file, imagemin, cb) {
if (imageType(file.contents) !== 'jpg') {
return cb();