ci: add GitHub Actions workflow for cross-platform build and test

Author: root

.github/workflows/ci.yml

@@ -0,0 +1,81 @@
+name: CI
+
+on:
+  push:
+    branches: ["main"]
+    tags: ["v*"]
+  pull_request:
+    branches: ["main"]
+  workflow_dispatch:
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_BACKTRACE: 1
+
+jobs:
+  test:
+    name: Build & Test
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            cronet_ext: tar.xz
+          - os: ubuntu-latest
+            target: aarch64-unknown-linux-gnu
+            cronet_ext: tar.xz
+          - os: macos-latest
+            target: x86_64-apple-darwin
+            cronet_ext: tar.xz
+          - os: macos-latest
+            target: aarch64-apple-darwin
+            cronet_ext: tar.xz
+          - os: windows-latest
+            target: x86_64-pc-windows-msvc
+            cronet_ext: zip
+    
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+
+      - name: Setup Rust Cache
+        uses: Swatinem/rust-cache@v2
+        with:
+          key: ${{ matrix.target }}
+
+      - name: Install cross-compilation tools (Linux ARM64)
+        if: matrix.target == 'aarch64-unknown-linux-gnu'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc-aarch64-linux-gnu g++-aarch64-linux-gnu libclang-dev
+          echo "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc" >> $GITHUB_ENV
+
+      - name: Install dependencies (Linux x86_64)
+        if: matrix.target == 'x86_64-unknown-linux-gnu'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libclang-dev
+
+      - name: Check Formatting
+        run: cargo fmt --all -- --check
+        continue-on-error: true
+
+      - name: Build (Default Backend)
+        run: cargo build --release --target ${{ matrix.target }}
+
+      - name: Build (Cronet Backend)
+        run: cargo build --release --features cronet-backend --target ${{ matrix.target }}
+
+      - name: Run Tests (Default Backend)
+        if: matrix.target == 'x86_64-unknown-linux-gnu' || matrix.target == 'x86_64-apple-darwin' || matrix.target == 'x86_64-pc-windows-msvc'
+        run: cargo test --release --target ${{ matrix.target }}
+        
+      - name: Run Tests (Cronet Backend)
+        if: matrix.target == 'x86_64-unknown-linux-gnu' || matrix.target == 'x86_64-apple-darwin' || matrix.target == 'x86_64-pc-windows-msvc'
+        run: cargo test --release --features cronet-backend --target ${{ matrix.target }}