sdks.yml

name: SDKs
on:
  pull_request:
  schedule:
    - cron: '0 9 * * *'

jobs:
  bundle-tests:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        version: [release, devel, trunk]
        os: [ubuntu-24.04, macos-13]
    env:
      ANDROID_API_LEVEL: 24
      BUNDLE_VERSION: 0.1
      NDK_VERSION: 27c
    steps:
      - name: Check for latest Swift ${{ matrix.version }} toolchain
        id: version
        run: |
          if [ ${{ matrix.version }} = 'release' ]; then
            LATEST_TOOLCHAIN_VERSION=$(curl -sL https://github.com/apple/swift/releases | grep -m1 swift-6.0 | cut -d- -f2)
            SWIFT_TAG="swift-${LATEST_TOOLCHAIN_VERSION}-RELEASE"
          elif [ ${{ matrix.version }} = 'devel' ]; then
            LATEST_TOOLCHAIN_VERSION=$(curl -sL https://github.com/apple/swift/tags | grep -m1 swift-6.1-DEV | cut -d- -f8-10)
            SWIFT_TAG="swift-6.1-DEVELOPMENT-SNAPSHOT-${LATEST_TOOLCHAIN_VERSION}-a"
          else
            LATEST_TOOLCHAIN_VERSION=$(curl -sL https://github.com/apple/swift/tags | grep -m1 swift-DEV | cut -d- -f7-9)
            SWIFT_TAG="swift-DEVELOPMENT-SNAPSHOT-${LATEST_TOOLCHAIN_VERSION}-a"
          fi
          echo "tag=$SWIFT_TAG" >> $GITHUB_OUTPUT
          echo "key=$SWIFT_TAG-ndk-${NDK_VERSION}-pic-bundle" >> $GITHUB_OUTPUT
      - name: Get cached SDK bundle
        id: cache-bundle
        uses: actions/cache/restore@v4
        with:
          path: ~/${{ steps.version.outputs.tag }}-android-${{ env.ANDROID_API_LEVEL }}-${{ env.BUNDLE_VERSION }}.artifactbundle.tar.gz
          key: ${{ steps.version.outputs.key }}
          fail-on-cache-miss: ${{ startsWith(matrix.os, 'macos') && 'true' || 'false' }}
      - name: Get cached ${{ matrix.os }} ${{ steps.version.outputs.tag }} toolchain
        id: cache-toolchain
        uses: actions/cache@v4
        with:
          path: ~/${{ steps.version.outputs.tag }}-${{ startsWith(matrix.os, 'macos') && 'osx.pkg' || 'ubuntu24.04.tar.gz' }}
          key: swift-${{ matrix.os }}-${{ steps.version.outputs.tag }}-toolchain
      - name: Download toolchain
        if: ${{ steps.cache-toolchain.outputs.cache-hit != 'true' }}
        env:
          SWIFT_TAG: ${{ steps.version.outputs.tag }}
        run: |
          if [ ${{ matrix.version }} != 'trunk' ]; then
            SWIFT_BRANCH="swift-$(echo $SWIFT_TAG | cut -d- -f2)-${{ matrix.version == 'release' && 'release' || 'branch' }}"
          else
            SWIFT_BRANCH="development"
          fi
          cd
          if ${{ steps.cache-toolchain.outputs.cache-hit != 'true' }}; then
            wget -q https://download.swift.org/$SWIFT_BRANCH/${{ startsWith(matrix.os, 'macos') && 'xcode' || 'ubuntu2404' }}/$SWIFT_TAG/$SWIFT_TAG-${{ startsWith(matrix.os, 'macos') && 'osx.pkg' || 'ubuntu24.04.tar.gz' }}
            echo "downloaded latest ${{ matrix.os }} toolchain: ${SWIFT_TAG}"
          fi

      - name: Extract toolchain and set it up
        env:
          SWIFT_TAG: ${{ steps.version.outputs.tag }}
        run: |
          if ${{ startsWith(matrix.os, 'macos') }}; then
            mkdir ${SWIFT_TAG}
            pushd ${SWIFT_TAG}
            xar -x -C . -f ~/${SWIFT_TAG}-osx.pkg
            tar xz -C . -f ${SWIFT_TAG}-osx-package.pkg/Payload
            TOOLCHAIN=${PWD}/usr
            popd
          elif ${{ startsWith(matrix.os, 'ubuntu') }}; then
            SWIFT_TOOLS=$SWIFT_TAG-$(echo ${{ matrix.os }} | tr -d - )
            tar xf ~/$SWIFT_TOOLS.tar.gz
            TOOLCHAIN=${PWD}/$SWIFT_TOOLS/usr
          fi

          echo "TOOLCHAIN=${TOOLCHAIN}" >> $GITHUB_ENV
          ${TOOLCHAIN}/bin/swift --version
      - name: Get cached Android NDK sysroot and runtime libraries
        id: cache-ndk
        uses: actions/cache@v4
        if: ${{ (steps.cache-bundle.outputs.cache-hit != 'true') && startsWith(matrix.os, 'ubuntu') }}
        with:
          path: ~/android-sysroot.tar.xz
          key: android-ndk-${{ env.NDK_VERSION }}
      - name: Extract Android NDK sysroot if not cached before
        if: ${{ steps.cache-bundle.outputs.cache-hit != 'true' && steps.cache-ndk.outputs.cache-hit != 'true' && startsWith(matrix.os, 'ubuntu') }}
        run: |
          wget -q https://dl.google.com/android/repository/android-ndk-r$NDK_VERSION-linux.zip
          if [ "$(sha1sum android-ndk-r$NDK_VERSION-linux.zip | cut -f1 -d" ")" != '090e8083a715fdb1a3e402d0763c388abb03fb4e' ]; then
            echo "NDK checksum didn't match"
            exit 1
          fi
          unzip -q android-ndk-r$NDK_VERSION-linux.zip
          rm android-ndk-r$NDK_VERSION-linux.zip
          mv android-ndk-r$NDK_VERSION/toolchains/llvm/prebuilt/linux-x86_64/sysroot .
          rm -r sysroot/usr/{include,lib}/{i686,riscv64}-linux-android
          mv android-ndk-r$NDK_VERSION/toolchains/llvm/prebuilt/linux-x86_64/lib/clang/*/lib/linux sysroot
          rm -r sysroot/linux/*{i[36]86,riscv64}* android-ndk-r$NDK_VERSION
          tar cJf ~/android-sysroot.tar.xz sysroot
      - name: Clone
        uses: actions/checkout@v4
        with:
          path: sdk-config
      - name: Build Swift ${{ matrix.version }} Android SDK bundle if not the latest
        # build-script currently only works on ubuntu
        if: ${{ (steps.cache-bundle.outputs.cache-hit != 'true') && startsWith(matrix.os, 'ubuntu') }}
        env:
          SWIFT_TAG: ${{ steps.version.outputs.tag }}
        run: |
          set -x

          if ${{ startsWith(matrix.os, 'macos') }}; then
            brew install ninja patchelf
          elif ${{ startsWith(matrix.os, 'ubuntu') }}; then
            sudo apt install ninja-build
          fi

          cd sdk-config

          for arch in aarch64 x86_64 armv7; do
            ANDROID_ARCH=$arch BUILD_SWIFT_PM=1 ${TOOLCHAIN}/bin/swift get-packages-and-swift-source.swift
          done

          git apply swift-android.patch swift-android-ci.patch swift-crypto.patch swift-system.patch
          if [ ${{ matrix.version }} = 'release' ]; then
            git apply swift-android-ci-release.patch swift-android-foundation-release.patch
            perl -pi -e 's%r26%ndk/27%' swift/stdlib/cmake/modules/AddSwiftStdlib.cmake
          else
            if [ ${{ matrix.version }} = 'devel' ]; then
              git apply swift-android-foundation-devel.patch
              perl -pi -e 's%r26%ndk/27%' swift/stdlib/cmake/modules/AddSwiftStdlib.cmake
            fi
            git apply swift-android-ci-except-release.patch swift-android-foundation-except-release.patch
          fi

          perl -pi -e 's%String\(cString: getpass%\"fake\" //%' swiftpm/Sources/PackageRegistryCommand/PackageRegistryCommand+Auth.swift
          VERSION="$(echo ${{ steps.version.outputs.tag }} | cut -f1,2 -d-)-${{ matrix.version }}"

          # e.g. swift-6.0.1-release-android-24-sdk
          SDK_DIR=$VERSION-android-${ANDROID_API_LEVEL}-sdk
          ROOT=android-${NDK_VERSION}-sysroot
          SYSROOT=$SDK_DIR/$ROOT
          mkdir ${SDK_DIR}

          tar xf ~/android-sysroot.tar.xz
          mv sysroot $SYSROOT

          for arch in aarch64 x86_64 armv7; do
            SDK_NAME=$(ls | grep swift-${{ matrix.version }}-android-$arch)
            SDK=`pwd`/$SDK_NAME
            if [ ${{ matrix.version }} = 'release' ]; then
              perl -pi -e "s%/data/data/com.termux/files%$SDK%g" $SDK/usr/lib/pkgconfig/sqlite3.pc
            fi

            ./swift/utils/build-script -RA --skip-build-cmark --build-llvm=0 --android --android-ndk $ANDROID_NDK_LATEST_HOME --android-arch $arch --android-api-level $ANDROID_API_LEVEL --build-swift-tools=0 --native-swift-tools-path=${TOOLCHAIN}/bin --native-clang-tools-path=${TOOLCHAIN}/bin --cross-compile-hosts=android-$arch --cross-compile-deps-path=$SDK --skip-local-build --build-swift-static-stdlib --xctest --skip-early-swift-driver --install-swift --install-libdispatch --install-foundation --install-xctest --install-destdir=$SDK --swift-install-components='compiler;clang-resource-dir-symlink;license;stdlib;sdk-overlay' --cross-compile-append-host-target-to-destdir=False -b -p --install-llbuild --sourcekit-lsp --skip-early-swiftsyntax

            pushd ${SDK_NAME}/usr

            patchelf --set-rpath \$ORIGIN lib/swift/android/lib[dFXs]*.so
            # Remove executables and unused toolchain headers/libraries
            rm -r bin lib/libsqlite3.so lib/lib{curses,ncurses}.so lib/terminfo share/{tabset,terminfo}
            if [ ${{ matrix.version }} = 'release' ]; then
              rm -r lib/swift/pm
            fi
            mv include/curl include/libxml2 include/spawn.h .
            rm -r include/*
            mv curl libxml2 spawn.h include/
            cp -r ../../swift/lib/ClangImporter/SwiftBridging/{module.modulemap,swift} include/

            TRIPLE="$arch-linux-android"
            if [[ $arch == 'armv7' ]]; then
                TRIPLE="arm-linux-androideabi"
            fi

            mkdir lib/${TRIPLE}
            mv lib/lib[a-z]*.so lib/pkgconfig lib/swift/android/lib*.{a,so} lib/${TRIPLE}

            mv lib/swift_static lib/swift_static-$arch
            mv lib/libandroid-spawn.a lib/swift_static-$arch/android
            rm lib/swift{,_static-$arch}/clang

            popd

            # copy all the processed SDK files into the Android sysroot
            rsync -ar ${SDK_NAME}/ $SYSROOT
          done

          # Copy necessary headers and libraries from the toolchain and NDK clang resource directories
          mkdir -p $SYSROOT/usr/lib/swift/clang/lib
          cp -r $TOOLCHAIN/lib/clang/*/include $SYSROOT/usr/lib/swift/clang
          mv $SYSROOT/linux $SYSROOT/usr/lib/swift/clang/lib
          ln -s ../swift/clang $SYSROOT/usr/lib/swift_static-aarch64/clang
          ln -s ../swift/clang $SYSROOT/usr/lib/swift_static-armv7/clang
          ln -s ../swift/clang $SYSROOT/usr/lib/swift_static-x86_64/clang

          # Patch a single libc++ header to work around a Swift compiler bug
          cd $SYSROOT
          git apply ../../libc++-stdlib.h.patch
          cd ../..

          BUNDLE=${{ steps.version.outputs.tag }}-android-${ANDROID_API_LEVEL}-${BUNDLE_VERSION}
          BUNDLE_DIR=$BUNDLE.artifactbundle
          mkdir ${BUNDLE_DIR}
          mv ${SDK_DIR} ${BUNDLE_DIR}

          cat > $BUNDLE_DIR/info.json << EOF
          {
              "schemaVersion": "1.0",
              "artifacts": {
                  "${BUNDLE}": {
                      "variants": [ { "path": "${SDK_DIR}" } ],
                      "version": "${BUNDLE_VERSION}",
                      "type": "swiftSDK"
                  }
              }
          }
          EOF

          cat > $BUNDLE_DIR/$SDK_DIR/swift-sdk.json << EOF
          {
              "schemaVersion": "4.0",
              "targetTriples": {
                  "aarch64-unknown-linux-android${ANDROID_API_LEVEL}": {
                      "sdkRootPath": "${ROOT}",
                      "swiftResourcesPath": "${ROOT}/usr/lib/swift",
                      "swiftStaticResourcesPath": "${ROOT}/usr/lib/swift_static-aarch64",
                      "toolsetPaths": ["swift-toolset.json"]
                  },
                  "x86_64-unknown-linux-android${ANDROID_API_LEVEL}": {
                      "sdkRootPath": "${ROOT}",
                      "swiftResourcesPath": "${ROOT}/usr/lib/swift",
                      "swiftStaticResourcesPath": "${ROOT}/usr/lib/swift_static-x86_64",
                      "toolsetPaths": ["swift-toolset.json"]
                  },
                  "armv7-unknown-linux-androideabi${ANDROID_API_LEVEL}": {
                      "sdkRootPath": "${ROOT}",
                      "swiftResourcesPath": "${ROOT}/usr/lib/swift",
                      "swiftStaticResourcesPath": "${ROOT}/usr/lib/swift_static-armv7",
                      "toolsetPaths": ["swift-toolset.json"]
                  }
              }
          }
          EOF

          cat > $BUNDLE_DIR/$SDK_DIR/swift-toolset.json << EOF
          {
              "cCompiler": { "extraCLIOptions": ["-fPIC"] },
              "swiftCompiler": { "extraCLIOptions": ["-Xclang-linker", "-fuse-ld=lld"] },
              "schemaVersion": "1.0"
          }
          EOF

          cat > $BUNDLE_DIR/$SYSROOT/SDKSettings.json << EOF
          {
              "DisplayName": "Android NDK ${NDK_VERSION} sysroot with ${VERSION} runtime libraries for API ${ANDROID_API_LEVEL}",
              "Version": "27.2.12479018",
              "VersionMap": {},
              "CanonicalName": "${VERSION}-android${ANDROID_API_LEVEL}"
          }
          EOF

          # output visualization of the SDK bundle file tree
          tree $BUNDLE_DIR

          du -skh "${BUNDLE_DIR}"
          tar czf ~/${BUNDLE_DIR}.tar.gz "${BUNDLE_DIR}"
          du -skh ~/${BUNDLE_DIR}.tar.gz
          shasum -a 256 ~/${BUNDLE_DIR}.tar.gz
          rm -rf build/ swift-${{ matrix.version }}-android-*-sdk/ $BUNDLE_DIR llvm-project/
      - name: Cache SDK bundle
        uses: actions/cache/save@v4
        if: ${{ (steps.cache-bundle.outputs.cache-hit != 'true') && startsWith(matrix.os, 'ubuntu') }}
        with:
          path: ~/${{ steps.version.outputs.tag }}-android-${{ env.ANDROID_API_LEVEL }}-${{ env.BUNDLE_VERSION }}.artifactbundle.tar.gz
          key: ${{ steps.version.outputs.key }}
      - name: Upload SDK bundle
        if: ${{ startsWith(matrix.os, 'ubuntu') }}
        uses: actions/upload-artifact@v4
        with:
          name: ${{ steps.version.outputs.tag }}-android-${{ env.ANDROID_API_LEVEL }}-${{ env.BUNDLE_VERSION }}.artifactbundle.tar.gz
          path: ~/${{ steps.version.outputs.tag }}-android-${{ env.ANDROID_API_LEVEL }}-${{ env.BUNDLE_VERSION }}.artifactbundle.tar.gz
          compression-level: 0
      - name: Install ${{ matrix.version }} Android SDK bundle and set SwiftPM flags
        run: |
          ${TOOLCHAIN}/bin/swift sdk install ~/${{ steps.version.outputs.tag }}-android-*.artifactbundle.tar.gz
          ${TOOLCHAIN}/bin/swift sdk configure --show-configuration ${{ steps.version.outputs.tag }}-android-${ANDROID_API_LEVEL}-${BUNDLE_VERSION} armv7-unknown-linux-androideabi${ANDROID_API_LEVEL}

          if ${{ matrix.version != 'release' }}; then
            FLAGS="-Xswiftc -disallow-use-new-driver"
          fi

          SFLAGS="--swift-sdk aarch64-unknown-linux-android${ANDROID_API_LEVEL} ${FLAGS}"
          echo "SWIFTPM_AARCH_FLAGS=${SFLAGS}" >> $GITHUB_ENV
          XFLAGS="--swift-sdk x86_64-unknown-linux-android${ANDROID_API_LEVEL} ${FLAGS}"
          echo "SWIFTPM_X_FLAGS=${XFLAGS}" >> $GITHUB_ENV
          AFLAGS="--swift-sdk armv7-unknown-linux-androideabi${ANDROID_API_LEVEL} ${FLAGS}"
          echo "SWIFTPM_ARM_FLAGS=${AFLAGS}" >> $GITHUB_ENV
      - name: Get Swift Argument Parser package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-argument-parser
          path: swift-argument-parser
      - name: Build Swift Argument Parser package
        run: |
          cd swift-argument-parser
          rm Examples/count-lines/CountLines.swift Tools/changelog-authors/*.swift
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Swift crypto package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-crypto
          path: swift-crypto
      - name: Build Swift crypto package
        run: |
          cd swift-crypto
          perl -pi -e 's%\\\\(testsDirectory)/.*Vectors%/data/local/tmp/pack/crypto-vectors%' Tests/{Crypto,_CryptoExtras}Tests/Utils/{RFCVector,Wycheproof}.swift
          perl -pi -e 's%#file%"/data/local/tmp/pack/crypto-vectors"%;s%../_CryptoExtrasVectors/%%' Tests/_CryptoExtrasTests/TestRSABlindSigning.swift
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Swift NIO package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-nio
          path: swift-nio
      - name: Build Swift NIO package
        run: |
          cd swift-nio
          git apply ../sdk-config/swift-nio-disable-ecn-tests.patch ../sdk-config/swift-nio-filesystem.patch
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Swift Numerics package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-numerics
          path: swift-numerics
      - name: Build Swift Numerics package
        run: |
          cd swift-numerics
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Swift System package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-system
          path: swift-system
      - name: Build Swift System package
        run: |
          git apply sdk-config/swift-system-tests.patch
          cd swift-system
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Swift Collections package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-collections
          path: swift-collections
      - name: Build Swift Collections package
        run: |
          cd swift-collections
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Swift Atomics package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-atomics
          path: swift-atomics
          ref: 1.2.0
      - name: Get Swift NIO SSH package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-nio-ssh
          path: sns
      - name: Build Swift NIO SSH package
        run: |
          cd sns
          perl -pi -e 's%url: .*swift-([a-z]*)\.git.*$%path: \"../swift-\1\"),%g' Package.swift
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Swift NIO SSL package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-nio-ssl
          path: snl
      - name: Build Swift NIO SSL package
        run: |
          cd snl
          git apply ../sdk-config/swift-nio-ssl-test.patch
          SWIFTCI_USE_LOCAL_DEPS=1 ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          SWIFTCI_USE_LOCAL_DEPS=1 ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          SWIFTCI_USE_LOCAL_DEPS=1 ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Yams package
        uses: actions/checkout@v4
        with:
          repository: jpsim/Yams
          path: yams
      - name: Build Yams package
        run: |
          cd yams
          perl -pi -e 's% fixturesDirectory + \"/SourceKitten#289% \"/data/local/tmp/pack%' Tests/YamsTests/PerformanceTests.swift
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get Swift NIO HTTP/2 package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-nio-http2
          path: snh
      - name: Build Swift NIO HTTP/2 package
        run: |
          cd snh
          perl -pi -e 's%url: .*swift-([a-z]*)\.git.*$%path: \"../swift-\1\"),%g' Package.swift
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
      - name: Get Swift Algorithms package
        uses: actions/checkout@v4
        with:
          repository: apple/swift-algorithms
          path: sa
      - name: Build Swift Algorithms package
        run: |
          cd sa
          perl -pi -e 's%url: .*$%path: \"../swift-numerics\"),%' Package.swift
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_AARCH_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_X_FLAGS}
          ${TOOLCHAIN}/bin/swift build --build-tests ${SWIFTPM_ARM_FLAGS}
      - name: Get cached Termux debug app for NIO tests
        id: cache-termux
        uses: actions/cache@v4
        with:
          path: ~/termux-debug.apk
          key: termux-app
      - name: Get Termux debug app if not cached
        if: ${{ steps.cache-termux.outputs.cache-hit != 'true' }}
        run: wget -O ~/termux-debug.apk https://github.com/termux/termux-app/releases/download/v0.118.0/termux-app_v0.118.0+github-debug_x86_64.apk
      - name: Prepare Android emulator test package and script
        run: |
          set -x
          # create the test runner script
          cat > ~/test-toolchain.sh << EOF
          adb install ~/termux-debug.apk
          adb push pack /data/local/tmp
          adb shell "run-as com.termux mkdir /data/data/com.termux/pack"
          adb shell "run-as com.termux cp /data/local/tmp/pack/{lib*.so,swift-nioPackageTests.xctest,FileHandleTests.swift} /data/data/com.termux/pack"
          adb shell "run-as com.termux cp -r /data/local/tmp/pack/Test\ Data /data/data/com.termux/pack"
          adb shell "run-as com.termux ln -s README.md /data/data/com.termux/pack/Test\ Data/README.md.symlink"
          adb shell "run-as com.termux ln -s Foo /data/data/com.termux/pack/Test\ Data/Foo.symlink"
          adb shell "run-as com.termux sh -c 'TMPDIR=/data/data/com.termux /data/data/com.termux/pack/swift-nioPackageTests.xctest'"
          adb shell "TMPDIR=/data/local/tmp /data/local/tmp/pack/swift-systemPackageTests.xctest"
          EOF

          mkdir pack
          TARGET="x86_64-unknown-linux-android$ANDROID_API_LEVEL"

          cp swift-argument-parser/.build/$TARGET/debug/{generate-manual,math,repeat,roll,swift-argument-parserPackageTests.xctest} pack
          echo 'adb shell /data/local/tmp/pack/swift-argument-parserPackageTests.xctest' >> ~/test-toolchain.sh

          wget -q https://raw.githubusercontent.com/termux/termux-elf-cleaner/v2.1.1/elf-cleaner.cpp
          wget -q https://raw.githubusercontent.com/termux/termux-elf-cleaner/v2.1.1/elf.h
          wget -q https://raw.githubusercontent.com/termux/termux-elf-cleaner/v2.1.1/arghandling.h
          wget -q https://raw.githubusercontent.com/termux/termux-elf-cleaner/v2.1.1/arghandling.c
          clang -c arghandling.c
          clang -o elf-cleaner arghandling.o elf-cleaner.cpp -DCOPYRIGHT=\"foo\" -DPACKAGE_NAME=\"termux-elf-cleaner\" -DPACKAGE_VERSION=\"2.2.1\"
          ./elf-cleaner --api-level $ANDROID_API_LEVEL pack/{generate-manual,math,repeat,roll} || true

          cp swift-crypto/.build/$TARGET/debug/swift-cryptoPackageTests.xctest pack
          echo 'adb shell /data/local/tmp/pack/swift-cryptoPackageTests.xctest' >> ~/test-toolchain.sh

          cp swift-nio/.build/$TARGET/debug/swift-nioPackageTests.xctest pack

          cp swift-numerics/.build/$TARGET/debug/swift-numericsPackageTests.xctest pack
          echo 'adb shell /data/local/tmp/pack/swift-numericsPackageTests.xctest' >> ~/test-toolchain.sh

          cp swift-system/.build/$TARGET/debug/swift-systemPackageTests.xctest pack
          cp swift-collections/.build/$TARGET/debug/swift-collectionsPackageTests.xctest pack
          echo 'adb shell /data/local/tmp/pack/swift-collectionsPackageTests.xctest' >> ~/test-toolchain.sh

          cp sns/.build/$TARGET/debug/swift-nio-sshPackageTests.xctest pack
          echo 'adb shell /data/local/tmp/pack/swift-nio-sshPackageTests.xctest' >> ~/test-toolchain.sh

          cp snl/.build/$TARGET/debug/swift-nio-sslPackageTests.xctest pack
          echo 'adb shell /data/local/tmp/pack/swift-nio-sslPackageTests.xctest' >> ~/test-toolchain.sh

          cp snh/.build/$TARGET/debug/swift-nio-http2PackageTests.xctest pack
          echo 'adb shell /data/local/tmp/pack/swift-nio-http2PackageTests.xctest' >> ~/test-toolchain.sh

          cp yams/.build/$TARGET/debug/YamsPackageTests.xctest pack
          echo 'adb shell /data/local/tmp/pack/YamsPackageTests.xctest' >> ~/test-toolchain.sh

          cp sa/.build/$TARGET/debug/swift-algorithmsPackageTests.xctest pack
          echo 'adb shell /data/local/tmp/pack/swift-algorithmsPackageTests.xctest' >> ~/test-toolchain.sh

          mkdir pack/crypto-vectors pack/swift-crypto_CryptoTests.resources
          cp swift-crypto/Tests/Test\ Vectors/* swift-crypto/Tests/_CryptoExtrasVectors/* pack/crypto-vectors
          cp swift-crypto/Tests/CryptoTests/HPKE/hpke-test-vectors.json pack/swift-crypto_CryptoTests.resources
          rm swift-nio/Tests/NIOFileSystemIntegrationTests/Test\ Data/*symlink
          cp -r swift-nio/Tests/NIOFileSystemIntegrationTests/Test\ Data/ swift-nio/Tests/NIOFileSystemIntegrationTests/FileHandleTests.swift pack
          cp yams/Tests/YamsTests/Fixtures/SourceKitten#289/debug.yaml pack
          cp ~/.${{ startsWith(matrix.os, 'ubuntu') && 'config/' || '' }}swiftpm/swift-sdks/${{ steps.version.outputs.tag }}-android-${ANDROID_API_LEVEL}-*.artifactbundle/swift*sdk/android*sysroot/usr/lib/x86_64-linux-android/lib*so pack

          # need to free up some space or else the emulator fails to launch:
          # ERROR   | Not enough space to create userdata partition. Available: 6086.191406 MB at /home/runner/.android/avd/../avd/test.avd, need 7372.800000 MB.
          rm -rf ${{ steps.version.outputs.tag }}-$(echo ${{ matrix.os }} | tr -d - )/ */.build

          chmod +x ~/test-toolchain.sh

          echo "TEST SCRIPT:"
          cat ~/test-toolchain.sh

          if ${{ startsWith(matrix.os, 'ubuntu') }}; then
            echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
            sudo udevadm control --reload-rules
            sudo udevadm trigger --name-match=kvm
          fi

      - name: Run tests on Android x86_64 emulator
        uses: reactivecircus/android-emulator-runner@v2
        with:
          api-level: 29
          arch: x86_64
          script: ~/test-toolchain.sh