Switch to GitHub Actions for CI (#41)

.github/workflows/test.yml

@@ -0,0 +1,38 @@
+on: push
+name: Test
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.13.x]
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.platform }}
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v1
+      with:
+        go-version: ${{ matrix.go-version }}
+    - name: Install staticcheck
+      run: pwd && cd .. && go get -v -u honnef.co/go/tools/cmd/staticcheck && cd -
+      shell: bash
+    - name: Install golint
+      run: pwd && cd .. && go get -v -u golang.org/x/lint/golint && cd -
+      shell: bash
+    - name: Update PATH
+      # https://github.com/actions/setup-go/issues/12#issuecomment-524631719
+      run: echo "##[add-path]$(go env GOPATH)/bin" 
+      shell: bash
+    - name: Checkout code
+      uses: actions/checkout@v1
+    - name: Fmt
+      if: matrix.platform != 'windows-latest' # :(
+      run: "F=$(gofmt -l .) ; if [[ $F ]] ; then echo $F ; exit 1 ; fi"
+      shell: bash
+    - name: Vet
+      run: go vet ./...
+    - name: Staticcheck
+      run: staticcheck ./...
+    - name: Lint
+      run: golint ./...
+    - name: Test
+      run: go test -race ./...

README.md

@@ -1,4 +1,4 @@
-# fastly-exporter [![Latest Release](https://img.shields.io/github/release/peterbourgon/fastly-exporter.svg?style=flat-square)](https://github.com/peterbourgon/fastly-exporter/releases/latest) [![builds.sr.ht status](https://builds.sr.ht/~peterbourgon/fastly-exporter.svg)](https://builds.sr.ht/~peterbourgon/fastly-exporter?) [![Docker Status](https://img.shields.io/docker/build/mrnetops/fastly-exporter.svg)](https://hub.docker.com/r/mrnetops/fastly-exporter)
+# fastly-exporter [![Latest Release](https://img.shields.io/github/release/peterbourgon/fastly-exporter.svg?style=flat-square)](https://github.com/peterbourgon/fastly-exporter/releases/latest) [![Build Status](https://img.shields.io/endpoint.svg?url=https%3A%2F%2Factions-badge.atrox.dev%2Fpeterbourgon%2Ffastly-exporter%2Fbadge&style=flat-square&label=build)](https://github.com/peterbourgon/fastly-exporter/actions?query=workflow%3ATest) [![Docker Status](https://img.shields.io/docker/build/mrnetops/fastly-exporter.svg)](https://hub.docker.com/r/mrnetops/fastly-exporter)
 
 This program consumes from the [Fastly Real-time Analytics API][rt] and makes
 the data available to [Prometheus][prom]. It should behave like you expect: