[chore][backend] Add workflow to validate affected generated files

.github/workflows/validate-generated-files.yml

@@ -0,0 +1,46 @@
+name: Validate Generated Files
+on:
+  pull_request:
+    paths:
+      - 'backend/api/**/*.proto'
+      - '.github/workflows/validate-generated-files.yml'
+      - 'backend/api/**/go_http_client/**'
+      - 'backend/api/**/go_client/**'
+      - 'backend/api/**/python_http_client/**'
+      - 'backend/api/**/swagger/**'
+
+jobs:
+  validate-generated-files:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.9
+
+      - name: Install Dependencies
+        run: |
+          sudo apt-get update && sudo apt-get install -y protobuf-compiler jq default-jdk
+          python3 -m pip install setuptools wheel
+
+      - name: Generate API proto files
+        working-directory: ./api
+        run: make clean all
+
+      - name: Generate kfp-kubernetes proto files from source
+        working-directory: ./kubernetes_platform
+        run: make clean all
+
+      - name: Check for Changes
+        run: make check-diff
+

Makefile

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+
+# Check diff for generated files
+.PHONY: check-diff
+check-diff:
+	/bin/bash -c 'if [[ -n "$$(git status --porcelain)" ]]; then \
+		echo "ERROR: Generated files are out of date"; \
+		echo "Please regenerate using make clean all for api and kubernetes_platform"; \
+		echo "Changes found in the following files:"; \
+		git status; \
+		echo "Diff of changes:"; \
+		git diff; \
+		exit 1; \
+	fi'