ci(flatpak): use local exceptions (#3679)

.github/workflows/CI.yml

@@ -227,52 +227,23 @@ jobs:
       - name: Lint Flatpak
         working-directory: build
         run: |
+          exceptions_file="${{ github.workspace }}/packaging/linux/flatpak/exceptions.json"
+
           echo "Linting flatpak manifest"
           flatpak run --command=flatpak-builder-lint org.flatpak.Builder \
-            manifest ${APP_ID}.yml > _flatpak-lint-exceptions_manifest.json || true
+            --exceptions \
+            --user-exceptions "${exceptions_file}" \
+            manifest \
+            ${APP_ID}.yml
 
           echo "Linting flatpak repo"
           # TODO: add arg
           # --mirror-screenshots-url=https://dl.flathub.org/media \
           flatpak run --command=flatpak-builder-lint org.flatpak.Builder \
-            repo repo > _flatpak-lint-exceptions_repo.json || true
-
-          checks=(manifest repo)
-          exit_code=0
-
-          # check if files are equal
-          for check in "${checks[@]}"; do
-            echo "Validating $check"
-
-            # load baseline and result files
-            baseline="${{ github.workspace }}/packaging/linux/flatpak/flatpak-lint-baseline_${check}.json"
-            result="_flatpak-lint-exceptions_${check}.json"
-
-            # Extract errors from both JSON files
-            readarray -t result_errors < <(jq -r '.errors[]' "$result")
-            readarray -t baseline_errors < <(jq -r '.errors[]' "$baseline")
-
-            # Loop through result errors and check against baseline errors
-            for error in "${result_errors[@]}"; do
-              if printf '%s\n' "${baseline_errors[@]}" | grep -q -F "$error"; then
-                echo "::warning:: '$error'"
-              else
-                echo "::error:: '$error'"
-                exit_code=1
-              fi
-            done
-          done
-
-          # if exit code is not 0, print results
-          if [ $exit_code -ne 0 ]; then
-            echo "Manifest lint results:"
-            cat _flatpak-lint-exceptions_manifest.json
-            echo "Repo lint results:"
-            cat _flatpak-lint-exceptions_repo.json
-          fi
-
-          # exit with the correct code
-          exit $exit_code
+            --exceptions \
+            --user-exceptions "${exceptions_file}" \
+            repo \
+            repo
 
       - name: Package Flathub repo archive
         # copy files required to generate the Flathub repo