Migrate CI to GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,46 @@
+name: ci
+
+on:
+  push:
+    branches: [ master ]
+    tags: [ v* ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  matrix:
+    strategy:
+      matrix:
+        go-version: [1.15.x, 1.14.x, 1.13.x]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go-version }}
+    - uses: actions/checkout@v2
+    - run: go get -v -t -d ./...
+    - run: go test -v ./...
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Coverage on latest 1.x Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ^1.*
+    - uses: actions/checkout@v2
+    - run: go get -v -t -d ./...
+    - run: go test -v -coverprofile=coverage.out -covermode=count ./...
+    - uses: codecov/codecov-action@v1
+      with:
+        file: ./coverage.out
+        fail_ci_if_error: true
+  golangci:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v2
+        with:
+          version: v1.34
+          only-new-issues: true