updated CI

.github/workflows/go.yml

@@ -1,33 +1,39 @@
 name: Go
 
 on:
-  - push
-  - pull_request
+  push:
+    branches:
+      - main
+  pull_request:
 
 jobs:
-  fmt_vet:
-    name: Fmt & Vet
+  lint:
+    name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v4
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version: "1.21"
       - name: go fmt
         run: |
-          gofmt -s -d . > fmt.out
-          cat fmt.out
-          test -z $(cat fmt.out)
+          output=$(gofmt -s -d .)
+          echo "$output"
+          test -z "$output"
       - name: go vet
         run: go vet ./...
+      - name: install staticcheck
+        run: go install honnef.co/go/tools/cmd/staticcheck@latest
+      - name: staticcheck
+        run: staticcheck ./...
 
   test:
     name: Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v4
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version: "1.21"
       - name: go test
         run: TZ="" go test ./... -tags=faketime