chore(ci): add linter the check go code style (casdoor#991)

* feat(ci): auto format go code

* fix: fix casdoor#997

* chore(ci): add go code style linter

* fix: fix cmd error

* chore: add `linter` of needs

* chore: modiy commnet style

Author: qianxi0410

.github/workflows/build.yml

@@ -57,11 +57,30 @@ jobs:
           go build -race -ldflags "-extldflags '-static'"
         working-directory: ./
 
+  linter:
+    name: Go-Linter
+    runs-on: ubuntu-latest
+    needs: [ go-tests ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v3
+        with:
+          go-version: '^1.16.5'
+
+      # gen a dummy config file
+      - run: touch dummy.yml
+      
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: latest
+          args: --disable-all -c dummy.yml -E=gofumpt --max-same-issues=0 --timeout 5m --modules-download-mode=mod
+
   release-and-push:
     name: Release And Push
     runs-on: ubuntu-latest
     if: github.repository == 'casdoor/casdoor' && github.event_name == 'push'
-    needs: [ frontend, backend ]
+    needs: [ frontend, backend, linter ]
     steps:
       - name: Checkout
         uses: actions/checkout@v2

.golangci.yml

@@ -31,7 +31,7 @@ run:
     - api
   # skip-files:
   #   - ".*_test\\.go$"
-  modules-download-mode: vendor
+  modules-download-mode: mod
 # all available settings of specific linters
 linters-settings:
   lll:

conf/conf_test.go

@@ -11,6 +11,7 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
+
 package conf
 
 import (

controllers/token.go

@@ -269,10 +269,11 @@ func (c *ApiController) TokenLogout() {
 // IntrospectToken
 // @Title IntrospectToken
 // @Description The introspection endpoint is an OAuth 2.0 endpoint that takes a
-//  parameter representing an OAuth 2.0 token and returns a JSON document
-//  representing the meta information surrounding the
-//  token, including whether this token is currently active.
-//  This endpoint only support Basic Authorization.
+// parameter representing an OAuth 2.0 token and returns a JSON document
+// representing the meta information surrounding the
+// token, including whether this token is currently active.
+// This endpoint only support Basic Authorization.
+//
 // @Param token formData string true "access_token's value or refresh_token's value"
 // @Param token_type_hint formData string true "the token type access_token or refresh_token"
 // @Success 200 {object} object.IntrospectionResponse The Response object