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Add a CI workflow for building libcoro on Android
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‎.github/workflows/ci-android.yml

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name: ci-android
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on: [pull_request, workflow_dispatch]
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jobs:
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build-libcoro-android:
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name: Build libcoro (arm64-v8a + OpenSSL)
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runs-on: ubuntu-latest
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timeout-minutes: 60
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steps:
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- name: Checkout
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uses: actions/checkout@v4
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with:
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submodules: recursive
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fetch-depth: 0
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- name: Set up Android SDK
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uses: android-actions/setup-android@v3
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- name: Install Android SDK packages
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shell: bash
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run: |
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sdkmanager --install \
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"platform-tools" \
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"platforms;android-34" \
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"build-tools;34.0.0"
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# Accept licenses; suppress Broken pipe when nothing to accept
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yes | sdkmanager --licenses > /dev/null || true
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- name: Install build dependencies
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run: |
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sudo apt-get update
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sudo apt-get install -y perl rsync curl cmake
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- name: Install NDK 29.0.13846066
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run: |
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sdkmanager --install "ndk;29.0.13846066"
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yes | sdkmanager --licenses > /dev/null || true
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- name: Export NDK env vars
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run: |
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echo "ANDROID_NDK_HOME=$ANDROID_SDK_ROOT/ndk/29.0.13846066" >> $GITHUB_ENV
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echo "ANDROID_NDK_ROOT=$ANDROID_SDK_ROOT/ndk/29.0.13846066" >> $GITHUB_ENV
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- name: Build OpenSSL prebuilts (arm64-v8a)
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shell: bash
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run: |
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set -euo pipefail
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OPENSSL_VERSION="${OPENSSL_VERSION:-3.5.0}"
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MIN_API_LEVEL=24
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ABI="arm64-v8a"
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ROOT_DIR="${GITHUB_WORKSPACE}"
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CACHE_DIR="$ROOT_DIR/.openssl_build"
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SRC_DIR="$CACHE_DIR/src"
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BUILD_ROOT="$CACHE_DIR/build"
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INSTALL_ROOT="$ROOT_DIR/external/openssl"
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TARBALL="openssl-${OPENSSL_VERSION}.tar.gz"
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mkdir -p "$SRC_DIR" "$BUILD_ROOT" "$INSTALL_ROOT"
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pushd "$CACHE_DIR" >/dev/null
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if [[ ! -f "$TARBALL" ]]; then
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echo "[INFO] Downloading OpenSSL $OPENSSL_VERSION"
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for u in \
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"https://github.com/openssl/openssl/releases/download/openssl-${OPENSSL_VERSION}/openssl-${OPENSSL_VERSION}.tar.gz" \
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"https://www.openssl.org/source/openssl-${OPENSSL_VERSION}.tar.gz" \
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"https://ftp.openssl.org/source/openssl-${OPENSSL_VERSION}.tar.gz" \
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"https://mirror.yandex.ru/pub/OpenSSL/openssl-${OPENSSL_VERSION}.tar.gz"; do
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echo " -> $u"
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if curl -fsSL "$u" -o "$TARBALL.tmp"; then mv "$TARBALL.tmp" "$TARBALL"; break; fi
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done
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[[ -f "$TARBALL" ]] || { echo "[ERR ] Failed to download OpenSSL"; exit 1; }
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fi
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popd >/dev/null
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if [[ ! -d "$SRC_DIR/openssl-${OPENSSL_VERSION}" ]]; then
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tar -xf "$CACHE_DIR/$TARBALL" -C "$SRC_DIR"
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fi
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case "$ABI" in
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arm64-v8a) TGT=android-arm64;;
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*) echo "[ERR ] Unsupported ABI $ABI"; exit 1;;
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esac
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BUILD_DIR="$BUILD_ROOT/$ABI"
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INSTALL_DIR="$INSTALL_ROOT/$ABI"
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rm -rf "$BUILD_DIR" "$INSTALL_DIR"; mkdir -p "$BUILD_DIR" "$INSTALL_DIR"
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rsync -a --delete "$SRC_DIR/openssl-${OPENSSL_VERSION}/" "$BUILD_DIR/"
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pushd "$BUILD_DIR" >/dev/null
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export ANDROID_NDK_ROOT="$ANDROID_NDK_HOME"
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export ANDROID_NDK_HOME="$ANDROID_NDK_HOME"
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export PATH="$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/bin:$PATH"
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perl ./Configure "$TGT" -D__ANDROID_API__=$MIN_API_LEVEL \
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--prefix="$INSTALL_DIR" --openssldir="$INSTALL_DIR" \
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no-shared no-tests no-apps no-docs
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[[ -f Makefile ]] || { echo "[ERR ] Configure failed"; exit 1; }
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make -j"$(nproc)" build_libs
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make install_dev
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[[ -f "$INSTALL_DIR/lib/libssl.a" && -f "$INSTALL_DIR/lib/libcrypto.a" ]] || { echo "[ERR ] Missing libs"; exit 1; }
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popd >/dev/null
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echo "OpenSSL installed to: $INSTALL_DIR"
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- name: Configure libcoro (CMake Android toolchain)
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run: |
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ANDROID_ABI="arm64-v8a"
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OPENSSL_DIR="${{ github.workspace }}/external/openssl/$ANDROID_ABI"
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cmake -S . -B build-android-arm64 \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_HOME/build/cmake/android.toolchain.cmake" \
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-DCMAKE_PREFIX_PATH="$OPENSSL_DIR" \
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-DANDROID_ABI=$ANDROID_ABI \
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-DANDROID_PLATFORM=24 \
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-DANDROID_STL=c++_static \
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-DLIBCORO_BUILD_TESTS=OFF \
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-DLIBCORO_BUILD_EXAMPLES=OFF \
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-DOPENSSL_ROOT_DIR="$OPENSSL_DIR" \
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-DOPENSSL_USE_STATIC_LIBS=ON \
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-DOPENSSL_INCLUDE_DIR="$OPENSSL_DIR/include" \
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-DOPENSSL_CRYPTO_LIBRARY="$OPENSSL_DIR/lib/libcrypto.a" \
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-DOPENSSL_SSL_LIBRARY="$OPENSSL_DIR/lib/libssl.a" \
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-DOPENSSL_LIBRARIES="$OPENSSL_DIR/lib/libssl.a;$OPENSSL_DIR/lib/libcrypto.a" \
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-DCARES_STATIC_PIC=ON \
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-DCARES_BUILD_TOOLS=OFF
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- name: Build libcoro
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run: |
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cmake --build build-android-arm64 --config Release -j
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file build-android-arm64/libcoro.a || true
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ls -lah build-android-arm64 || true
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- name: Upload libcoro static lib
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if: success()
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uses: actions/upload-artifact@v4
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with:
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name: libcoro-android-arm64
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path: |
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build-android-arm64/**/*.a

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