debug-symbols.sh

createStrippedAndDebugInfo() {
    cd ${REPO_PATH} # assuming we're in your repository's directory
    ANDROID_NDK=<PATH_TO_NDK>
    
    TMP_DIR_NAME=tmp_strip_symbols
    AAR=`find -name '*.aar'` # find the path to the AAR containing the binaries
    
    mkdir -p ${TMP_DIR_NAME}
    try cd ${TMP_DIR_NAME}

    try cp $AAR . # copy the AAR with symbolised binaries to the temp directory

    try unzip $AAR -d .
    mkdir -p obj
    try cp -R jni/* obj/ # copy all symbolised binaries from the jni/ directory to the obj/ directory

    JNI_ARCHS=(`find jni/ -type d -maxdepth 1 -mindepth 1 -exec basename {} \; | perl -ne 'print $1." " if /(.*)/g'`)

    # Strip the binaries for each CPU architecture (ABI) under the jni/ directory
    for jni_arch in ${JNI_ARCHS[@]};
    do
        echo "Stripping ${jni_arch}"
        SO_FILE=`find jni/${jni_arch} -name '*.so'` # find the .so binary for the given ABI
        
        # Make sure we use the correct `strip` and `nm` tools for each ABI case
        case ${jni_arch} in
        armeabi-v7a)
            STRIP=`find ${ANDROID_NDK}/toolchains/arm-*/prebuilt/*/bin -name '*strip'`
            NM=`find ${ANDROID_NDK}/toolchains/arm-*/prebuilt/*/bin -name '*-nm' | grep -v "gcc-nm$"`
            ;;
        arm64-v8a)
            STRIP=`find ${ANDROID_NDK}/toolchains/aarch64-*/prebuilt/*/bin -name '*strip'`
            NM=`find ${ANDROID_NDK}/toolchains/aarch64-*/prebuilt/*/bin -name '*-nm' | grep -v "gcc-nm$"`
            ;;
        x86_64)
            STRIP=`find ${ANDROID_NDK}/toolchains/x86_64-*/prebuilt/*/bin -name '*strip'`
            NM=`find ${ANDROID_NDK}/toolchains/x86_64-*/prebuilt/*/bin -name '*-nm' | grep -v "gcc-nm$"`
            ;;
        x86)
            STRIP=`find ${ANDROID_NDK}/toolchains/x86-*/prebuilt/*/bin -name '*strip'`
            NM=`find ${ANDROID_NDK}/toolchains/x86-*/prebuilt/*/bin -name '*-nm' | grep -v "gcc-nm$"`
            ;;
        # you can add more cases if you support different ABI combinations
        *)
            die "unknown architecture found in jni folder!"
            ;;
        esac
        
        # Exit the script if no debug symbols were found in the allegedly "simbolysed" script,
        # to make sure we didn't have issues in previous build steps (for example, with Gradle scripts)
        ${NM} ${SO_FILE} | test $(wc -l) -eq 0 && die "No symbols present in the shared library"

        echo "${STRIP} --strip-debug ${SO_FILE}"
        ${STRIP} --strip-unneeded ${SO_FILE} || die "Failed to strip symbols"
    done

    # Zip the new files back into another AAR
    try cd <PATH_TO_TMP_DIR>
    try zip -ru ${AAR} .
}