Add integration test for issue #83

Adds a new github action test
to validate the issue reported in
#83

.github/workflows/integration_external_target.yml

@@ -5,8 +5,6 @@ on:
     branches: [ master ]
   pull_request:
     branches: [ master ]
-  schedule:
-    - cron: "0 */12 * * *"
 
 jobs:
   build:

.github/workflows/integration_gazelle.yml

@@ -0,0 +1,28 @@
+name: Integration External Target
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Setup Java JDK
+        uses: actions/[email protected]
+        with:
+          java-version: 1.8
+        id: java
+      - uses: actions/checkout@v2
+        with:
+          repository: mikberg/bazel-diff-problem
+          ref: master
+          fetch-depth: 0
+      - name: Run External Target Impact test
+        run: ./bazel-diff.sh $(pwd) bazel $(git rev-parse HEAD~1) $(git rev-parse HEAD)
+      - name: Validate Impacted Targets
+        run: "[ -s /tmp/impacted_targets.txt ] && exit 1 || exit 0"
+