vinyl-fs结合through2示例
var fs = require('vinyl-fs');
var through2 = require('through2');
fs.src(['./js/**/*.js', '!./js/vendor/*.js'])
.pipe(through2.obj(function (file, enc, cb) {
console.log('>>>>>>>>>>>>>>>>>>>>>>');
console.log(file);
console.log('>>>>>>>>>>>>>>>>>>>>>>');
console.log(cb);
var content = '111';
file.contents = new Buffer(content);
this.push(file);
cb();
}))
.pipe(fs.dest('./output'))