Build on each XCode version supporting a Swift version

.github/workflows/build.yml

@@ -4,10 +4,37 @@ on:
     branches:
       - '**'
 jobs:
-  root:
+  generate-build-matrix:
+    runs-on: ubuntu-22.04
+    outputs:
+      pairs: ${{ steps.generate.outputs.pairs }}
+    steps:
+      - uses: actions/[email protected]
+      - run: npm install @plist/parse
+      - id: generate
+        run: |
+          pair_list=()
+          for plist in $(find /Applications/Xcode.*\.app/Contents/version.plist); do
+            pair_list+=$(/usr/libexec/PlistBuddy -c "print CFBundleShortVersionString" $plist)
+          done
+          jsonString="$(jq -c --null-input '$ARGS.positional' --args -- "${pair_list[@]}")"
+          echo "pairs=$jsonString" >> $GITHUB_OUTPUT
+  build:
     runs-on: macos-14-xlarge
+    needs: [ generate-build-matrix ]
+    strategy:
+      matrix:
+        pair: ${{ fromJSON(needs.generate-build-matrix.outputs.pairs) }}
     steps:
       - uses: actions/[email protected]
+      - uses: maxim-lobanov/[email protected]
+        with:
+          xcode-version: ${{ matrix.pair }}
       - uses: ./.github/actions/runGradleTask
         with:
           task: build
+  barrier-build:
+    runs-on: ubuntu-22.04
+    needs: [ build ]
+    steps:
+      - run: exit 0