Add coverage to GitHub actions.

Author: mbrt

.github/workflows/coverage.yml

@@ -0,0 +1,45 @@
+name: Coverage
+
+on:
+  push:
+    branches: master
+  pull_request:
+    branches: master
+
+jobs:
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+
+    - uses: actions/checkout@v2
+
+    - name: Set up Go 1.17
+      uses: actions/setup-go@v1
+      with:
+        go-version: 1.17
+
+    - name: Coverage
+      id: coverage
+      run: |
+        go test -v -coverprofile=cov.out ./...
+        go tool cover -html=cov.out -o coverage.html
+        COV=$(go tool cover -func=cov.out | awk '/total/ { gsub("%", "", $3); print $3 }')
+        (( $(echo "${COV} > ${MIN_COV}" | bc -l) )) && STATE=success || STATE=failure
+        echo "::set-output name=COV::${COV}% (Required ${MIN_COV}%)"
+        echo "::set-output name=STATE::${STATE}"
+      env:
+        MIN_COV: 70
+
+    - uses: Sibz/github-status-action@v1
+      with: 
+        authToken: ${{secrets.GITHUB_TOKEN}}
+        description: '${{steps.coverage.outputs.COV}}'
+        context: ${{github.jobs.coverage.name}}
+        state: '${{steps.coverage.outputs.STATE}}'
+        sha: ${{github.event.pull_request.head.sha || github.sha}}
+
+    - uses: actions/upload-artifact@v2
+      with:
+        name: coverage
+        path: coverage.html
+        retention-days: 7

.github/workflows/go.yml

@@ -13,10 +13,10 @@ jobs:
 
     - uses: actions/checkout@v2
 
-    - name: Set up Go 1.15
+    - name: Set up Go 1.17
       uses: actions/setup-go@v1
       with:
-        go-version: 1.15
+        go-version: 1.17
 
     - name: golangci-lint
       uses: golangci/golangci-lint-action@v2