Add backwards compatibility

Author: david_smith

.github/workflows/backwards_compatibility.yml

@@ -0,0 +1,29 @@
+name: backwards_compatibility
+
+on:
+  workflow_run:
+    workflows: ["test"]
+    types:
+      - completed
+    branches:
+      - main
+
+jobs:
+  roave-backwards-compatibility-check:
+    if: ${{ github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.head_branch == 'main' }}
+    name: Roave Backwards Compatibility Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Set safe directory
+        run: git config --global --add safe.directory /github/workspace
+      - name: "Check for BC breaks"
+        run: |
+          git config --global --add safe.directory "${GITHUB_WORKSPACE}"
+
+          docker run --rm \
+            -v "${GITHUB_WORKSPACE}":/github/workspace \
+            -w /github/workspace \
+            nyholm/roave-bc-check-ga

.github/workflows/test.yml

@@ -7,23 +7,6 @@ on:
     branches: [main]
 
 jobs:
-  roave-backwards-compatibility-check:
-    name: Roave Backwards Compatibility Check
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - name: Set safe directory
-        run: git config --global --add safe.directory /github/workspace
-      - name: "Check for BC breaks"
-        run: |
-          git config --global --add safe.directory "${GITHUB_WORKSPACE}"
-
-          docker run --rm \
-            -v "${GITHUB_WORKSPACE}":/github/workspace \
-            -w /github/workspace \
-            nyholm/roave-bc-check-ga
   test:
     runs-on: ubuntu-latest