Add Bloaty iOS size test for PRs (#1966)

.github/workflows/ios-ci.yml

@@ -164,6 +164,45 @@ jobs:
             ${{ env.ios_cpp_test_artifacts_dir }}/CppUnitTests.xctest.zip
             ${{ env.ios_cpp_test_artifacts_dir }}/CppUnitTestsApp.ipa
 
+      # Size test (Bloaty)
+
+      - name: Build dynamic library for size test (Bloaty)
+        if: matrix.renderer == 'drawable'
+        run: |
+          bazel build //platform/ios:MapLibre.dynamic --//:renderer=metal --//:maplibre_platform=ios --compilation_mode="opt" --copt -g --copt="-Oz" --strip never --output_groups=+dsyms --apple_generate_dsym
+          bazel_bin="$(bazel info --compilation_mode="opt" bazel-bin)"
+          unzip "$bazel_bin"/platform/ios/MapLibre.dynamic.xcframework.zip
+          cp "$bazel_bin"/platform/ios/MapLibre.dynamic_dsyms/MapLibre_ios_device.framework.dSYM/Contents/Resources/DWARF/MapLibre_ios_device MapLibre_DWARF
+          cp MapLibre.xcframework/ios-arm64/MapLibre.framework/MapLibre MapLibre_dynamic
+
+      - name: Upload size test as artifact (Bloaty)
+        uses: actions/upload-artifact@v3
+        if: matrix.renderer == 'drawable' && github.event_name == 'pull_request'
+        with:
+          name: ios-size-test-files
+          retention-days: 3
+          if-no-files-found: error
+          path: |
+            platform/ios/MapLibre_DWARF
+            platform/ios/MapLibre_dynamic
+
+      - name: Configure AWS Credentials
+        if: matrix.renderer == 'drawable' && github.ref == 'refs/heads/main' && vars.OIDC_AWS_ROLE_TO_ASSUME 
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          aws-region: us-west-2
+          role-to-assume: ${{ vars.OIDC_AWS_ROLE_TO_ASSUME }}
+          role-session-name: ${{ github.run_id }}
+      
+      - name: Upload MapLibre_DWARF & MapLibre_dynamic to S3
+        if: matrix.renderer == 'drawable' && github.ref == 'refs/heads/main' && vars.OIDC_AWS_ROLE_TO_ASSUME 
+        run: | 
+          aws s3 cp MapLibre_DWARF s3://maplibre-native/size-test-ios/MapLibre_DWARF-main
+          aws s3 cp MapLibre_dynamic s3://maplibre-native/size-test-ios/MapLibre_dynamic-main
+
+      - if: github.event_name == 'pull_request'
+        uses: ./.github/actions/save-pr-number
+
       # Make Metal XCFramework release
       - name: Should make release?
         if: ${{ github.ref == 'refs/heads/main' && matrix.renderer == 'metal' }}