ci: Add iOS verification workflow. (#6992)

.ci/ios.sh

@@ -0,0 +1,15 @@
+#!/bin/bash -ex
+
+mkdir build && cd build
+cmake .. -GNinja \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_SYSTEM_NAME=iOS \
+    -DCMAKE_OSX_ARCHITECTURES=arm64 \
+    -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+    -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+    -DENABLE_QT_TRANSLATION=ON \
+    -DCITRA_ENABLE_COMPATIBILITY_REPORTING=ON \
+    -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON
+ninja
+
+ccache -s

.github/workflows/ci.yml

@@ -245,6 +245,30 @@ jobs:
         with:
           name: ${{ env.OS }}-${{ env.TARGET }}
           path: src/android/app/artifacts/
+  ios:
+    runs-on: macos-latest
+    if: ${{ !startsWith(github.ref, 'refs/tags/') }}
+    env:
+      CCACHE_CPP2: yes
+      CCACHE_SLOPPINESS: time_macros
+      CCACHE_DIR: ${{ github.workspace }}/.ccache
+      OS: ios
+      TARGET: arm64
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Set up cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.CCACHE_DIR }}
+          key: ${{ runner.os }}-ios-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-ios-
+      - name: Install tools
+        run: brew install ccache glslang ninja
+      - name: Build
+        run: ./.ci/ios.sh
   transifex:
     runs-on: ubuntu-latest
     container: citraemu/build-environments:linux-fresh