ci: use Go 1.16, 1.17 and 1.18 (#75)

.github/workflows/go.yml

@@ -1,8 +1,18 @@
 name: Go
 on:
   push:
-    branches: [master]
+    branches: [ master ]
+    paths:
+      - '**.go'
+      - 'go.mod'
+      - '.golangci.yml'
+      - '.github/workflows/go.yml'
   pull_request:
+    paths:
+      - '**.go'
+      - 'go.mod'
+      - '.golangci.yml'
+      - '.github/workflows/go.yml'
 env:
   GOPROXY: "https://proxy.golang.org"
 
@@ -18,32 +28,34 @@ jobs:
         with:
           version: latest
           args: --timeout=30m
+      - name: Check Go module tidiness
+        shell: bash
+        run: |
+          go mod tidy
+          STATUS=$(git status --porcelain go.mod go.sum)
+          if [ ! -z "$STATUS" ]; then
+            echo "Running go mod tidy modified go.mod and/or go.sum"
+            exit 1
+          fi
 
   test:
     name: Test
     strategy:
       matrix:
-        go-version: [1.14.x, 1.15.x, 1.16.x]
-        platform: [ubuntu-latest, macos-latest, windows-latest]
+        go-version: [ 1.16.x, 1.17.x, 1.18.x ]
+        platform: [ ubuntu-latest, macos-latest, windows-latest ]
     runs-on: ${{ matrix.platform }}
     steps:
       - name: Install Go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v2
         with:
           go-version: ${{ matrix.go-version }}
       - name: Checkout code
         uses: actions/checkout@v2
-      - name: Run unit tests
+      - name: Run tests with coverage
         run: go test -v -race -coverprofile=coverage -covermode=atomic ./...
       - name: Upload coverage report to Codecov
-        uses: codecov/codecov-action@v1.0.6
+        uses: codecov/codecov-action@v1.5.0
         with:
           file: ./coverage
           flags: unittests
-      - name: Cache downloaded modules
-        uses: actions/cache@v1
-        with:
-          path: ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-

codecov.yml

@@ -6,4 +6,6 @@ coverage:
         threshold: 1%
 
 comment:
-  layout: 'diff, files'
+  layout: 'diff'
+
+github_checks: false