ci(schema): check for OpenAPI and GraphQL schema changes

.github/workflows/pr-ci.yaml

@@ -183,3 +183,110 @@ jobs:
         token: ${{ secrets.GITHUB_TOKEN }}
         status: ${{ job.status }}
 
+  update-schemas:
+    needs: [checkout-branch]
+    runs-on: ubuntu-latest
+    outputs:
+      OPENAPI_STATUS: ${{ steps.schema-update.outputs.openapi_status }}
+      OPENAPI_DIFF_FILE: ${{ steps.schema-update.outputs.openapi_diff_file }}
+      # GRAPHQL_STATUS: ${{ steps.schema-update.outputs.graphql_status }}
+      # GRAPHQL_DIFF_FILE: ${{ steps.schema-update.outputs.graphql_diff_file }}
+    steps:
+    - uses: actions/checkout@v3
+      with:
+        repository: ${{ needs.checkout-branch.outputs.PR_repo }}
+        ref: ${{ needs.checkout-branch.outputs.PR_head_ref }}
+        submodules: true
+        fetch-depth: 0
+    - uses: actions/setup-java@v3
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+        cache: 'maven'
+    - run: git submodule init && git submodule update
+    - name: Cache yarn packages
+      uses: actions/cache@v3
+      with:
+        path: "./src/main/webui/.yarn/cache"
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/yarn.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-build-${{ env.cache-name }}-
+          ${{ runner.os }}-build-
+          ${{ runner.os }}-
+    - name: Initialize web assets
+      run: |
+        cd src/main/webui
+        yarn install && yarn yarn:frzinstall
+        cd -
+    - name: Update schemas
+      id: schema-update
+      run: |
+        set -x
+        mkdir "${HOME}/bin"
+        wget https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64 -O "${HOME}/bin/yq"
+        chmod +x "${HOME}/bin/yq"
+        export PATH="${HOME}/bin:${PATH}"
+        bash /home/runner/work/cryostat3/cryostat3/schema/update.bash 90 15
+        set +e
+        git diff -U10 --exit-code /home/runner/work/cryostat3/cryostat3/schema/openapi.yaml > /home/runner/work/openapi.diff
+        echo "openapi_status=$?" >> "$GITHUB_OUTPUT"
+        echo "openapi_diff_file=openapi.diff" >> "$GITHUB_OUTPUT"
+        # git diff -U10 --exit-code /home/runner/work/cryostat3/cryostat3/schema/schema.graphql > /home/runner/work/graphql.diff
+        # echo "graphql_status=$?" >> "$GITHUB_OUTPUT"
+        # echo "graphql_diff_file=graphql.diff" >> "$GITHUB_OUTPUT"
+    - uses: actions/upload-artifact@v3
+      with:
+        name: openapi-diff
+        path: /home/runner/work/openapi.diff
+    - uses: actions/upload-artifact@v3
+      with:
+        name: graphql-diff
+        path: /home/runner/work/graphql.diff
+
+  compare-openapi-schema:
+    needs: [update-schemas]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/download-artifact@v3
+      with:
+        name: openapi-diff
+    - name: Comment schema check result
+      uses: actions/github-script@v6
+      with:
+        script: |
+          const diffFmt = s => {
+            return "```diff\n" + s + "\n```";
+          };
+          const commentBody = ${{ needs.update-schemas.outputs.OPENAPI_STATUS }} == '0'
+            ? `No OpenAPI schema changes detected.`
+            : `OpenAPI schema change detected:\n\n${diffFmt(require('fs').readFileSync('${{ needs.update-schemas.outputs.OPENAPI_DIFF_FILE }}'))}`;
+          github.rest.issues.createComment({
+            issue_number: context.issue.number,
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            body: commentBody
+          });
+
+  # compare-graphql-schema:
+  #   needs: [update-schemas]
+  #   runs-on: ubuntu-latest
+  #   steps:
+  #   - uses: actions/download-artifact@v3
+  #     with:
+  #       name: graphql-diff
+  #   - name: Comment schema check result
+  #     uses: actions/github-script@v6
+  #     with:
+  #       script: |
+  #         const diffFmt = s => {
+  #           return "```diff\n" + s + "\n```";
+  #         };
+  #         const commentBody = ${{ needs.update-schemas.outputs.GRAPHQL_STATUS }} == '0'
+  #           ? `No GraphQL schema changes detected.`
+  #           : `GraphQL schema change detected:\n\n${diffFmt(require('fs').readFileSync('${{ needs.update-schemas.outputs.GRAPHQL_DIFF_FILE }}'))}`;
+  #         github.rest.issues.createComment({
+  #           issue_number: context.issue.number,
+  #           owner: context.repo.owner,
+  #           repo: context.repo.repo,
+  #           body: commentBody
+  #         });