Implement correct types

build-scripts/gulp/app.ts

@@ -1,8 +1,7 @@
-// eslint-disable-next-line import/no-extraneous-dependencies
-import gulp from "gulp";
+import { parallel, series, task } from "gulp";
+import { isStatsBuild, isTestBuild } from "../env.ts";
 import "./clean.ts";
 import "./compress.ts";
-import env from "../env";
 import "./entry-html.ts";
 import "./gather-static.ts";
 import "./gen-icons-json.ts";
@@ -11,14 +10,14 @@ import "./rspack.ts";
 import "./service-worker.ts";
 import "./translations.ts";
 
-gulp.task(
+task(
   "develop-app",
-  gulp.series(
+  series(
     async () => {
       process.env.NODE_ENV = "development";
     },
     "clean",
-    gulp.parallel(
+    parallel(
       "gen-service-worker-app-dev",
       "gen-icons-json",
       "gen-pages-app-dev",
@@ -30,25 +29,25 @@ gulp.task(
   )
 );
 
-gulp.task(
+task(
   "build-app",
-  gulp.series(
+  series(
     async () => {
       process.env.NODE_ENV = "production";
     },
     "clean",
-    gulp.parallel("gen-icons-json", "build-translations", "build-locale-data"),
+    parallel("gen-icons-json", "build-translations", "build-locale-data"),
     "copy-static-app",
     "rspack-prod-app",
-    gulp.parallel("gen-pages-app-prod", "gen-service-worker-app-prod"),
+    parallel("gen-pages-app-prod", "gen-service-worker-app-prod"),
     // Don't compress running tests
-    ...(env.isTestBuild() || env.isStatsBuild() ? [] : ["compress-app"])
+    ...(isTestBuild() || isStatsBuild() ? [] : ["compress-app"])
   )
 );
 
-gulp.task(
+task(
   "analyze-app",
-  gulp.series(
+  series(
     async () => {
       process.env.STATS = "1";
     },