gistfile1.txt

gulp.task('watch:replace', function () {
    return gulp.watch(['./app/scripts/controllers/*.ts', 'app/scripts/math/*.ts'], ['replacefile']);
});

// noi' cac' file trong cung` 1 folder lai. de? cho dep. code :)
gulp.task('replacefile', function() {
    var result = '';
    var header = '';
    var folders = {
        '_Controller': 'app/scripts/controllers',
        '_Math': 'app/scripts/math'
    };
    _.forEach(folders, function(folder, name) {
        var files = fs.readdirSync(folder);
        _.forEach(files, function(file) {
            if (file === 'header.txt') {
                header = fs.readFileSync(folder + '/' + file);
            }
            if (fs.statSync(folder + '/' + file).isFile()&&file.indexOf('.ts')!==-1) {
                    var moduleText = fs.readFileSync(folder + '/' + file, 'utf8');
                    var myregexp = /\/\/Start\/\/((?:[^])*)\/\/End\/\//;
                    var match = myregexp.exec(moduleText);
                    if (match !== null) {
                        result += match[1];
                    }
            }
        });
        var moduleName = name.replace('_', '');
        var data = header + '\r\nexport module ' + moduleName + '{' + result + '\r\n}';
        fs.writeFileSync(folder + '/' + name.toLowerCase() + '.ts', data);
        result = '';
        header = '';
    });

});