Define file order in gulpfile.js - gulp

Question

I need to run bundling and minifying for some .js files, but I need to define a correct order for these files to be processed.
How can I do this?
my gulpfile.js file, path snippet:
...
var paths = {
js: webroot + "js/lib/**/*.js",
minJs: webroot + "js/lib/**/*.min.js",
css: webroot + "css/lib/**/*.css",
minCss: webroot + "css/lib/**/*.min.css",
...
I need to process in this order:
jquery.js
jquery-ui.custom.js
my-site.js
update
Entire gulpfile.js file (this is the default file for asp.net core bundling and minifying tasks):
/// <binding Clean='clean' />
"use strict";
var gulp = require("gulp"),
rimraf = require("rimraf"),
concat = require("gulp-concat"),
cssmin = require("gulp-cssmin"),
uglify = require("gulp-uglify");
var webroot = "./wwwroot/";
var paths = {
js: webroot + "js/lib/**/*.js",
minJs: webroot + "js/lib/**/*.min.js",
css: webroot + "css/lib/**/*.css",
minCss: webroot + "css/lib/**/*.min.css",
concatJsDest: webroot + "js/site.min.js",
concatCssDest: webroot + "css/site.min.css"
};
gulp.task("clean:js", function (cb) {
rimraf(paths.concatJsDest, cb);
});
gulp.task("clean:css", function (cb) {
rimraf(paths.concatCssDest, cb);
});
gulp.task("clean", ["clean:js", "clean:css"]);
gulp.task("min:js", function () {
return gulp.src([paths.js, "!" + paths.minJs], { base: "." })
.pipe(concat(paths.concatJsDest))
.pipe(uglify())
.pipe(gulp.dest("."));
});
gulp.task("min:css", function () {
return gulp.src([paths.css, "!" + paths.minCss])
.pipe(concat(paths.concatCssDest))
.pipe(cssmin())
.pipe(gulp.dest("."));
});
gulp.task("min", ["min:js", "min:css"]);

Answer 1

It's pretty simple, you need to specify array of paths to your files (paths can contain wildcards), i.e:
/* REMEMBER TO USE FULL PATHS */
var order = [
"jquery.js",
"jquery-ui.custom.js",
"my-site.js"
];
gulp.task("yourtask",function () {
var sources = order.concat([
webroot + "js/lib/**/*.js",
webroot + "js/lib/**/*.min.js",
]);
return gulp.src(sources)./* your operations goes here*/
});
Also, gulp is smart enough to not duplicate already used files, so you can include your libraries like this one:
webroot + "js/lib/**/*.js"