diff --git a/gulp-rev/gulp-rev-tests.ts b/gulp-rev/gulp-rev-tests.ts
new file mode 100644
index 0000000000..37661424f1
--- /dev/null
+++ b/gulp-rev/gulp-rev-tests.ts
@@ -0,0 +1,36 @@
+/// <reference path="gulp-rev.d.ts" />
+/// <reference path="../gulp/gulp.d.ts" />
+
+import gulp = require('gulp');
+import rev = require('gulp-rev');
+
+gulp.task('default', () =>
+    gulp.src('src/*.css')
+        .pipe(rev())
+        .pipe(gulp.dest('dist'))
+);
+
+gulp.task('default', () =>
+    // by default, gulp would pick `assets/css` as the base,
+    // so we need to set it explicitly:
+    gulp.src(['assets/css/*.css', 'assets/js/*.js'], {base: 'assets'})
+        .pipe(gulp.dest('build/assets'))  // copy original assets to build dir
+        .pipe(rev())
+        .pipe(gulp.dest('build/assets'))  // write rev'd assets to build dir
+        .pipe(rev.manifest())
+        .pipe(gulp.dest('build/assets')) // write manifest to build dir
+);
+
+gulp.task('default', () =>
+    // by default, gulp would pick `assets/css` as the base,
+    // so we need to set it explicitly:
+    gulp.src(['assets/css/*.css', 'assets/js/*.js'], {base: 'assets'})
+        .pipe(gulp.dest('build/assets'))
+        .pipe(rev())
+        .pipe(gulp.dest('build/assets'))
+        .pipe(rev.manifest({
+            base: 'build/assets',
+            merge: true // merge with the existing manifest (if one exists)
+        }))
+        .pipe(gulp.dest('build/assets'))
+);
diff --git a/gulp-rev/gulp-rev.d.ts b/gulp-rev/gulp-rev.d.ts
new file mode 100644
index 0000000000..6cd432b0de
--- /dev/null
+++ b/gulp-rev/gulp-rev.d.ts
@@ -0,0 +1,26 @@
+// Type definitions for gulp-csso v5.0.1
+// Project: https://github.com/sindresorhus/gulp-rev
+// Definitions by: Tanguy Krotoff <https://github.com/tkrotoff>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="../node/node.d.ts" />
+
+declare module 'gulp-rev' {
+    interface IOptions {
+        base?: string;
+        cwd?: string;
+        merge?: boolean;
+    }
+
+    interface IRev {
+        (): NodeJS.ReadWriteStream;
+
+        manifest(): NodeJS.ReadWriteStream;
+        manifest(path?: string): NodeJS.ReadWriteStream;
+        manifest(options?: IOptions): NodeJS.ReadWriteStream;
+        manifest(path?: string, options?: IOptions): NodeJS.ReadWriteStream;
+    }
+
+    var rev: IRev;
+    export = rev;
+}