chore: add swiftformat GH action

.github/workflows/swiftformat.yml

@@ -0,0 +1,46 @@
+name: SwiftFormat
+on:
+  workflow_dispatch:
+  workflow_call:
+    inputs:
+      identifier:
+        required: true
+        type: string
+
+  push:
+    branches-ignore:
+      - main
+      - v1
+      - release
+      - release-v1
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ inputs.identifier || github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ github.ref_name != 'main'}}
+
+jobs:
+  run-swiftformat:
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/nicklockwood/swiftformat:0.54.3
+    steps:
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 #v3.5.3
+        with:
+          persist-credentials: false
+
+      - name: SwiftFormat
+        run: |
+          swiftformat --lint . --reporter github-actions-log --swiftversion 5.9
+
+  confirm-pass:
+    runs-on: macos-latest
+    name: Confirm Passing SwiftFormat
+    if: ${{ !cancelled() }}
+    needs: [ run-swiftformat ]
+    env:
+      EXIT_CODE: ${{ contains(needs.*.result, 'failure') && 1 || 0 }}
+    steps:
+      - run: exit $EXIT_CODE

.swiftformat

@@ -65,12 +65,17 @@
 --enable void
   --empty void
 
---disable wrapArguments
-  --closingparen same-line
-  --wraparguments after-first
+--enable wrapArguments
+  --closingparen balanced
+  --wraparguments before-first
   --wrapcollections before-first
+  --wrapconditions preserve
 
 # standalone rules
+--disable preferKeyPath
+--disable conditionalAssignment
+--disable wrapMultilineConditionalAssignment
+--disable wrapMultilineStatementBraces
 --disable andOperator
 --disable anyObjectProtocol
 --disable blankLinesAroundMark