Merge pull request #98 from joelanford/go-apidiff

Add optional go-apidiff test to CI

Author: joelanford

.github/workflows/go.yaml

@@ -11,12 +11,29 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-    - name: Set up Go 1.15
-      uses: actions/setup-go@v1.1.3
+    - name: Set up Go
+      uses: actions/setup-go@v2
       with:
         go-version: 1.15
       id: go
     - name: Check out code into the Go module directory
-      uses: actions/checkout@v2.0.0
+      uses: actions/checkout@v2
     - name: unit-test
       run: go test -mod=vendor -v ./...
+
+  go-apidiff:
+    name: go-apidiff
+    if: github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    steps:
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.15
+      id: go
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Run go-apidiff
+      uses: joelanford/go-apidiff@master