chore: add version check to crds workflow

.github/workflows/crds.yaml

@@ -30,7 +30,27 @@ jobs:
           token: ${{ secrets.VM_BOT_GH_TOKEN }}
           path: __vm-charts-repo
 
+      - name: Check operator chart app version
+        id: chart
+        env:
+          RELEASE_VERSION: ${{ github.event.release.tag_name }}
+        run: |
+          chart_app_version=$(yq -r '.appVersion // ""' charts/victoria-metrics-operator/Chart.yaml)
+          if [ -z "$chart_app_version" ]; then
+            echo "failed to read chart appVersion"
+            exit 1
+          fi
+
+          update=$(python3 ../__vm-operator-repo/hack/compare_versions.py "$chart_app_version" "$RELEASE_VERSION")
+          echo "update=$update" >> "$GITHUB_OUTPUT"
+
+          if [ "$update" = "false" ]; then
+            echo "Skipping CRD update for $RELEASE_VERSION, chart appVersion is $chart_app_version"
+          fi
+        working-directory: __vm-charts-repo
+
       - name: Import GPG key
+        if: steps.chart.outputs.update == 'true'
         uses: crazy-max/ghaction-import-gpg@2dc316deee8e90f13e1a351ab510b4d5bc0c82cd  # v7.0.0
         id: import-gpg
         with:
@@ -41,6 +61,7 @@ jobs:
           workdir: __vm-charts-repo
 
       - name: Update crd yaml in chart repo
+        if: steps.chart.outputs.update == 'true'
         id: update
         run: |
           cp ../__vm-operator-repo/config/crd/overlay/crd.descriptionless.yaml charts/victoria-metrics-operator/charts/crds/crds/crd.yaml
@@ -52,6 +73,7 @@ jobs:
         working-directory: __vm-charts-repo
 
       - name: Create Pull Request
+        if: steps.chart.outputs.update == 'true'
         uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1  # v8.1.1
         with:
           add-paths: charts

hack/compare_versions.py

@@ -0,0 +1,32 @@
+#!/usr/bin/env python3
+import sys
+
+
+def parse_version(version):
+    """Parses a version string into a tuple of integers."""
+    return tuple(
+        int(part) for part in version.removeprefix("v").split("-", 1)[0].split(".")
+    )
+
+
+def main():
+    if len(sys.argv) != 3:
+        print(
+            "usage: compare_versions.py <current-version> <release-version>",
+            file=sys.stderr,
+        )
+        return 2
+
+    try:
+        current_version = parse_version(sys.argv[1])
+        release_version = parse_version(sys.argv[2])
+    except ValueError as e:
+        print(f"failed to parse version: {e}", file=sys.stderr)
+        return 2
+
+    print("true" if release_version >= current_version else "false")
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())