Add PR CI workflow

Author: fjh1997

.github/workflows/pr-ci.yml

@@ -0,0 +1,148 @@
+name: PR CI
+
+on:
+  pull_request:
+    branches:
+      - main
+    types:
+      - opened
+      - synchronize
+      - reopened
+      - ready_for_review
+  push:
+    branches:
+      - main
+  merge_group:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: pr-ci-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-and-test:
+    if: github.event_name != 'pull_request' || !github.event.pull_request.draft
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - windows-latest
+          - macos-15
+          - macos-15-intel
+
+    runs-on: ${{ matrix.os }}
+    name: Build and test (${{ matrix.os }})
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+
+      - name: Use crates.io in CI
+        shell: bash
+        run: |
+          mkdir -p .cargo
+          cat > .cargo/config.toml <<'EOF'
+          [registries.crates-io]
+          protocol = "sparse"
+
+          [net]
+          git-fetch-with-cli = true
+          EOF
+
+      - name: Cache cargo artifacts
+        uses: Swatinem/rust-cache@v2
+
+      - name: Install Linux dependencies
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            libayatana-appindicator3-dev \
+            libgtk-3-dev \
+            libxdo-dev \
+            libxkbcommon-dev \
+            libxcb-render0-dev \
+            libxcb-shape0-dev \
+            libxcb-xfixes0-dev \
+            libssl-dev \
+            pkg-config
+
+      - name: Run library tests
+        run: cargo test --release --locked --lib
+
+      - name: Build app binary
+        run: cargo build --release --locked --bin linuxdo-accelerator
+
+  build-android:
+    if: github.event_name != 'pull_request' || !github.event.pull_request.draft
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - abi: arm64-v8a
+            rust_target: aarch64-linux-android
+          - abi: x86_64
+            rust_target: x86_64-linux-android
+
+    runs-on: ubuntu-latest
+    name: Build Android APK (${{ matrix.abi }})
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: "17"
+
+      - uses: android-actions/setup-android@v3
+
+      - uses: gradle/actions/setup-gradle@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.rust_target }}
+
+      - name: Use crates.io in CI
+        shell: bash
+        run: |
+          mkdir -p .cargo
+          cat > .cargo/config.toml <<'EOF'
+          [registries.crates-io]
+          protocol = "sparse"
+
+          [net]
+          git-fetch-with-cli = true
+          EOF
+
+      - name: Cache cargo artifacts
+        uses: Swatinem/rust-cache@v2
+
+      - name: Install Android SDK / NDK
+        shell: bash
+        run: |
+          yes | sdkmanager --licenses > /dev/null || true
+          sdkmanager --install \
+            "platform-tools" \
+            "platforms;android-35" \
+            "build-tools;35.0.0" \
+            "ndk;27.2.12479018"
+
+      - name: Install cargo-ndk
+        run: cargo install cargo-ndk --locked
+
+      - name: Build Android APK
+        shell: bash
+        env:
+          ANDROID_ABI: ${{ matrix.abi }}
+          RUST_TARGET: ${{ matrix.rust_target }}
+          ANDROID_BUILD_TYPE: release
+          APK_OUTPUT_NAME: linuxdo-accelerator-${{ matrix.abi }}.apk
+        run: |
+          export ANDROID_NDK_HOME="${ANDROID_SDK_ROOT}/ndk/27.2.12479018"
+          ./scripts/build-android-apk.sh