scripts/build_android_gradle.sh

#!/usr/bin/env bash
set -eux -o pipefail

env
echo "BUILD_ENVIRONMENT:$BUILD_ENVIRONMENT"

export ANDROID_NDK_HOME=/opt/ndk
export ANDROID_NDK=/opt/ndk
export ANDROID_HOME=/opt/android/sdk

# Must be in sync with GRADLE_VERSION in docker image for android
# https://github.com/pietern/pytorch-dockerfiles/blob/master/build.sh#L155
export GRADLE_VERSION=6.8.3
export GRADLE_HOME=/opt/gradle/gradle-$GRADLE_VERSION
export GRADLE_PATH=$GRADLE_HOME/bin/gradle

# touch gradle cache files to prevent expiration
while IFS= read -r -d '' file
do
  touch "$file" || true
done < <(find /var/lib/jenkins/.gradle -type f -print0)

# Patch pocketfft (as Android does not have aligned_alloc even if compiled with c++17
if [ -f ~/workspace/third_party/pocketfft/pocketfft_hdronly.h ]; then
  sed -i -e "s/__cplusplus >= 201703L/0/" ~/workspace/third_party/pocketfft/pocketfft_hdronly.h
fi

export GRADLE_LOCAL_PROPERTIES=~/workspace/android/local.properties
rm -f $GRADLE_LOCAL_PROPERTIES
echo "sdk.dir=/opt/android/sdk" >> $GRADLE_LOCAL_PROPERTIES
echo "ndk.dir=/opt/ndk" >> $GRADLE_LOCAL_PROPERTIES
echo "cmake.dir=/usr/local" >> $GRADLE_LOCAL_PROPERTIES

retry () {
  $* || (sleep 1 && $*) || (sleep 2 && $*) || (sleep 4 && $*) || (sleep 8 && $*)
}

# Run custom build script
if [[ "${BUILD_ENVIRONMENT}" == *-gradle-custom-build* ]]; then
  # Install torch & torchvision - used to download & dump used ops from test model.
  retry pip install torch torchvision --progress-bar off

  exec "$(dirname "${BASH_SOURCE[0]}")/../android/build_test_app_custom.sh" armeabi-v7a
fi

# Run default build
BUILD_ANDROID_INCLUDE_DIR_x86=~/workspace/build_android/install/include
BUILD_ANDROID_LIB_DIR_x86=~/workspace/build_android/install/lib

BUILD_ANDROID_INCLUDE_DIR_x86_64=~/workspace/build_android_install_x86_64/install/include
BUILD_ANDROID_LIB_DIR_x86_64=~/workspace/build_android_install_x86_64/install/lib

BUILD_ANDROID_INCLUDE_DIR_arm_v7a=~/workspace/build_android_install_arm_v7a/install/include
BUILD_ANDROID_LIB_DIR_arm_v7a=~/workspace/build_android_install_arm_v7a/install/lib

BUILD_ANDROID_INCLUDE_DIR_arm_v8a=~/workspace/build_android_install_arm_v8a/install/include
BUILD_ANDROID_LIB_DIR_arm_v8a=~/workspace/build_android_install_arm_v8a/install/lib

PYTORCH_ANDROID_SRC_MAIN_DIR=~/workspace/android/pytorch_android/src/main

JNI_INCLUDE_DIR=${PYTORCH_ANDROID_SRC_MAIN_DIR}/cpp/libtorch_include
mkdir -p $JNI_INCLUDE_DIR

JNI_LIBS_DIR=${PYTORCH_ANDROID_SRC_MAIN_DIR}/jniLibs
mkdir -p $JNI_LIBS_DIR

ln -s ${BUILD_ANDROID_INCLUDE_DIR_x86} ${JNI_INCLUDE_DIR}/x86
ln -s ${BUILD_ANDROID_LIB_DIR_x86} ${JNI_LIBS_DIR}/x86

if [[ "${BUILD_ENVIRONMENT}" != *-gradle-build-only-x86_32* ]]; then
ln -s ${BUILD_ANDROID_INCLUDE_DIR_x86_64} ${JNI_INCLUDE_DIR}/x86_64
ln -s ${BUILD_ANDROID_LIB_DIR_x86_64} ${JNI_LIBS_DIR}/x86_64

ln -s ${BUILD_ANDROID_INCLUDE_DIR_arm_v7a} ${JNI_INCLUDE_DIR}/armeabi-v7a
ln -s ${BUILD_ANDROID_LIB_DIR_arm_v7a} ${JNI_LIBS_DIR}/armeabi-v7a

ln -s ${BUILD_ANDROID_INCLUDE_DIR_arm_v8a} ${JNI_INCLUDE_DIR}/arm64-v8a
ln -s ${BUILD_ANDROID_LIB_DIR_arm_v8a} ${JNI_LIBS_DIR}/arm64-v8a
fi

GRADLE_PARAMS="-p android assembleRelease --debug --stacktrace"
if [[ "${BUILD_ENVIRONMENT}" == *-gradle-build-only-x86_32* ]]; then
    GRADLE_PARAMS+=" -PABI_FILTERS=x86"
fi

if [ -n "${GRADLE_OFFLINE:-}" ]; then
    GRADLE_PARAMS+=" --offline"
fi

$GRADLE_PATH $GRADLE_PARAMS

find . -type f -name "*.a" -exec ls -lh {} \;

while IFS= read -r -d '' file
do
  echo
  echo "$file"
  ls -lah "$file"
  zipinfo -l "$file"
done < <(find . -type f -name '*.aar' -print0)

find . -type f -name *aar -print | xargs tar cfvz ~/workspace/android/artifacts.tgz