Add workflow for static analysis (go vet, gofmt, staticcheck)

.github/workflows/check.yml

@@ -17,7 +17,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
 
-    - name: Downgrate MinGW
+    - name: Downgrade MinGW
       if: matrix.os == 'windows-latest'
       run: choco install mingw --version 11.2.0.07112021 --allow-downgrade
 
@@ -32,5 +32,6 @@ jobs:
           sudo apt-get update && sudo apt-get install -y libpango1.0-dev libx11-dev libxext-dev libxft-dev libxinerama-dev libxcursor-dev libxrender-dev libxfixes-dev libpng-dev libgl1-mesa-dev libglu1-mesa-dev
          fi
       shell: bash
+
     - name: Build
       run: go build -v ./...

.github/workflows/static-analysis.yml

@@ -0,0 +1,41 @@
+name: Check
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.18
+
+    - name: Download deps
+      run: |
+         if [ "$RUNNER_OS" == "Linux" ]; then
+          sudo apt-get update && sudo apt-get install -y libpango1.0-dev libx11-dev libxext-dev libxft-dev libxinerama-dev libxcursor-dev libxrender-dev libxfixes-dev libpng-dev libgl1-mesa-dev libglu1-mesa-dev
+         fi
+      shell: bash
+
+    - name: Install analysis tools
+      run: |
+        go install golang.org/x/tools/cmd/goimports@latest
+        go install honnef.co/go/tools/cmd/staticcheck@v0.4.2
+
+    - name: Vet
+      run: go vet ./...
+
+    - name: Goimports
+      run: test -z "$(goimports -e -d . | tee /dev/stderr)"
+
+    - name: Staticcheck
+      run: staticcheck ./...