Add 'checks' Make and CI tasks (#12352)

* Add 'checks' Make and CI tasks

Introduce new "checks" targets that perform tasks that we've been piling
onto the linting tasks. This will make the linter tasks faster and
hopefully encourage some users to use them locally.

* add checks to --help

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

.drone.yml

@@ -34,6 +34,20 @@ steps:
       GOSUMDB: sum.golang.org
       TAGS: bindata sqlite sqlite_unlock_notify
 
+  - name: checks-frontend
+    pull: always
+    image: node:12
+    commands:
+      - make checks-frontend
+    depends_on: [deps-frontend]
+
+  - name: checks-backend
+    pull: always
+    image: golang:1.14
+    commands:
+      - make checks-backend
+    depends_on: [lint-backend]
+
   - name: build-frontend
     pull: always
     image: node:10 # this step is kept at the lowest version of node that we support
@@ -49,7 +63,7 @@ steps:
       GOPROXY: off
     commands:
       - go build -mod=vendor -o gitea_no_gcc # test if build succeeds without the sqlite tag
-    depends_on: [lint-backend]
+    depends_on: [checks-backend]
 
   - name: build-backend-arm64
     pull: always
@@ -63,7 +77,7 @@ steps:
     commands:
       - make backend # test cross compile
       - rm ./gitea # clean
-    depends_on: [lint-backend]
+    depends_on: [checks-backend]
 
   - name: build-backend-386
     pull: always
@@ -75,7 +89,7 @@ steps:
       GOARCH: 386
     commands:
       - go build -mod=vendor -o gitea_linux_386 # test if compatible with 32 bit
-    depends_on: [lint-backend]
+    depends_on: [checks-backend]
 
 ---
 kind: pipeline