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syncthing-android/syncthing/build-syncthing.bash
2018-04-09 21:13:25 +01:00

108 lines
3.6 KiB
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Executable file

#!/usr/bin/env bash
set -e
if [ -z "${ANDROID_NDK_HOME}" ]; then
echo "Please set ANDROID_NDK_HOME environment variable"
exit 1
fi
MODULE_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
PROJECT_DIR="${MODULE_DIR}/.."
MIN_SDK=$(grep "minSdkVersion" "${PROJECT_DIR}/app/build.gradle" -m 1 | awk '{print $2}')
# Use seperate build dir so standalone ndk isn't deleted by `gradle clean`
BUILD_DIR="${MODULE_DIR}/gobuild"
GO_BUILD_DIR="${BUILD_DIR}/go-packages"
export GOPATH="${MODULE_DIR}/"
if [ "${OSTYPE}" = "cygwin" ]; then
export GOPATH=`cygpath -w ${GOPATH}`
GO_BUILD_DIR=`cygpath -w ${GO_BUILD_DIR}`
fi
cd "${MODULE_DIR}/src/github.com/syncthing/syncthing"
# Make sure all tags are available for git describe
# https://github.com/syncthing/syncthing-android/issues/872
git fetch --tags
for ANDROID_ARCH in arm x86 arm64; do
echo -e "Starting build for ${ANDROID_ARCH}\n"
case ${ANDROID_ARCH} in
arm)
GOARCH=arm
JNI_DIR="armeabi"
GCC="arm-linux-androideabi-clang"
;;
arm64)
GOARCH=arm64
JNI_DIR="arm64-v8a"
GCC="aarch64-linux-android-clang"
# arm64 requires at least API 21.
MIN_SDK=21
;;
x86)
GOARCH=386
JNI_DIR="x86"
GCC="i686-linux-android-clang"
;;
*)
echo "Invalid architecture"
exit 1
esac
if [ -z "${SYNCTHING_ANDROID_PREBUILT}" ]; then
# Build standalone NDK toolchain if it doesn't exist.
# https://developer.android.com/ndk/guides/standalone_toolchain.html
STANDALONE_NDK_DIR="${BUILD_DIR}/standalone-ndk/android-${MIN_SDK}-${GOARCH}"
PKG_ARGUMENT="-pkgdir ${GO_BUILD_DIR}"
else
# The environment variable indicates the SDK and stdlib was prebuilt, set a custom paths.
STANDALONE_NDK_DIR="${ANDROID_NDK_HOME}/standalone-ndk/android-${MIN_SDK}-${GOARCH}"
PKG_ARGUMENT=""
fi
if [ ! -d "$STANDALONE_NDK_DIR" ]; then
if ! which python &>/dev/null; then
echo "Could not find python"
exit 1
fi
# We can't build the NDK with Cygwin/MinGW provided python, check that python is reporting a sensible host system.
# Also, strip \r as that is returned by Windows python.
HOST_PLATFORM=`python -c 'import platform; print platform.system()' | tr -d '\r'`
case ${HOST_PLATFORM} in
Windows|Linux|Darwin)
;;
*)
echo "Cannot build NDK with Python provided by an unsupported system: ${HOST_PLATFORM}"
echo "Please make sure that python that is available on the path is native to your host platform (Windows/Linux/Darwin)"
exit 1
;;
esac
if [ "${OSTYPE}" = "cygwin" ]; then
STANDALONE_NDK_DIR=`cygpath -w ${STANDALONE_NDK_DIR}`
fi
echo -e "Building standalone NDK\n"
${ANDROID_NDK_HOME}/build/tools/make-standalone-toolchain.sh \
--platform=android-${MIN_SDK} --arch=${ANDROID_ARCH} \
--install-dir=${STANDALONE_NDK_DIR}
fi
echo -e "Building Syncthing\n"
CGO_ENABLED=1 CC="${STANDALONE_NDK_DIR}/bin/${GCC}" \
go run build.go -goos android -goarch ${GOARCH} $PKG_ARGUMENT -no-upgrade build
# Copy compiled binary to jniLibs folder
TARGET_DIR="${PROJECT_DIR}/app/src/main/jniLibs/${JNI_DIR}"
mkdir -p ${TARGET_DIR}
mv syncthing ${TARGET_DIR}/libsyncthing.so
echo -e "Finished build for ${ANDROID_ARCH}\n"
done
echo -e "All builds finished"