gistfile1.js

gulp.task('bundle', ['lint'], function() {
    return gulp
        .src(['./src/js/main.js'])
        // How to exclude angular.js from the to5()/ngAnnotate/uglify routine
        // but include it in the bundle?
        // .src(['./node_modules/angular/angular.js'])
        .pipe(sourcemaps.init())
        .pipe(to5())
        .pipe(concat('main.js'))
        .pipe(ngAnnotate())
        .pipe(uglify())
        .pipe(sourcemaps.write())
        .pipe(gulp.dest('./endpoint/static/'));
});