build: use prebuild ndk toolchains instead of building standalone one (#637)

* build: use latest ndk

* use script to generate android debug keystore

* remove logs

* use api from variable script

cargo-config.toml.template

-[target.aarch64-linux-android]
-ar = "$PWD/NDK/arm64/bin/aarch64-linux-android-ar"
-linker = "$PWD/NDK/arm64/bin/aarch64-linux-android-gcc"
-
-[target.armv7-linux-androideabi]
-ar = "$PWD/NDK/arm/bin/arm-linux-androideabi-ar"
-linker = "$PWD/NDK/arm/bin/arm-linux-androideabi-gcc"
-
-[target.i686-linux-android]
-ar = "$PWD/NDK/x86/bin/i686-linux-android-ar"
-linker = "$PWD/NDK/x86/bin/i686-linux-android-gcc"

create-ndk-standalone.sh

-#! /bin/bash
-
-# based on https://github.com/kennytm/rust-ios-android
-
-set -euo pipefail
-
-if [ -d NDK ]; then
-    printf '\e[33;1mStandalone NDK already exists... Delete the NDK folder to make a new one.\e[0m\n\n'
-    printf '$ rm -rf NDK\n'
-    exit 0
-fi
-
-MAKER="$NDK_HOME/build/tools/make_standalone_toolchain.py"
-
-if [ -x "$MAKER" ]; then
-    MAKER="$NDK_HOME/build/tools/make_standalone_toolchain.py"
-fi
-
-if [ -x "$MAKER" ]; then
-    echo 'Creating standalone NDK...'
-else
-    printf '\e[91;1mPlease install `android-ndk`!\e[0m\n\n'
-    printf '$ brew cask install android-ndk\n'
-    exit 1
-fi
-
-mkdir NDK
-cd NDK
-
-for ARCH in arm64 arm x86; do
-    echo "($ARCH)..."
-    "$MAKER" --arch $ARCH --install-dir $ARCH
-done
-
-echo 'Updating ./rust/.cargo/config.toml...'
-
-cd ..
-mkdir -p rust/.cargo
-sed 's|$PWD|'"${PWD}"'|g' cargo-config.toml.template > ./rust/.cargo/config
-

rust/signer/Makefile

-NDK_STANDALONE = $(shell pwd)/../../NDK
 ARCHS_IOS = x86_64-apple-ios armv7-apple-ios armv7s-apple-ios aarch64-apple-ios
 ARCHS_ANDROID = aarch64-linux-android armv7-linux-androideabi i686-linux-android
 LIB=libsigner.a
+API_LEVEL=$(shell grep API_LEVEL scripts/variables.sh |tr -c -d '[:digit:]')
+OS_ARCH=$(shell uname | tr '[:upper:]' '[:lower:]')
+ANDROID_PREBUILD_BIN="${NDK_HOME}/toolchains/llvm/prebuilt/${OS_ARCH}-x86_64/bin"
 
 all: ios android
 
@@ -15,21 +17,21 @@ $(ARCHS_IOS): %:
 	cargo build --target $@ --release --no-default-features
 
 aarch64-linux-android:
-	PATH=$(PATH):$(NDK_STANDALONE)/arm64/bin \
-	CC=$@-gcc \
-	CXX=$@-g++ \
+	CC_aarch64_linux_android="${ANDROID_PREBUILD_BIN}/aarch64-linux-android${API_LEVEL}-clang" \
+	CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER="${ANDROID_PREBUILD_BIN}/aarch64-linux-android${API_LEVEL}-clang" \
+	AR_aarch64_linux_android="${ANDROID_PREBUILD_BIN}/aarch64-linux-android-ar" \
 	cargo build --target $@ --release
 
 armv7-linux-androideabi:
-	PATH=$(PATH):$(NDK_STANDALONE)/arm/bin \
-	CC=arm-linux-androideabi-gcc \
-	CXX=arm-linux-androideabi-g++ \
+	CC_armv7_linux_androideabi="${ANDROID_PREBUILD_BIN}/armv7a-linux-androideabi${API_LEVEL}-clang" \
+    CARGO_TARGET_ARMV7_LINUX_ANDROIDEABI_LINKER="${ANDROID_PREBUILD_BIN}/armv7a-linux-androideabi${API_LEVEL}-clang" \
+    AR_armv7_linux_androideabi="${ANDROID_PREBUILD_BIN}/arm-linux-androideabi-ar" \
 	cargo build --target $@ --release
 
 i686-linux-android:
-	PATH=$(PATH):$(NDK_STANDALONE)/x86/bin \
-	CC=i686-linux-android-gcc \
-	CXX=i686-linux-android-g++ \
+	CC_i686_linux_android="${ANDROID_PREBUILD_BIN}/i686-linux-android${API_LEVEL}-clang" \
+	CARGO_TARGET_I686_LINUX_ANDROID_LINKER="${ANDROID_PREBUILD_BIN}/i686-linux-android${API_LEVEL}-clang" \
+	AR_i686_linux_android="${ANDROID_PREBUILD_BIN}/i686-linux-android-ar" \
 	cargo build --target $@ --release --lib
 
 $(LIB): $(ARCHS_IOS)

scripts/build.sh

+#!/bin/bash
+
+source ./scripts/variables.sh
+
+# Build iOS
+cd ./rust/signer
+
+cargo lipo --release
+
+cp "./target/universal/release/lib${LIB_NAME}.a" "../../ios/lib${LIB_NAME}.a"
+
+# Build android
+
+if [ -z ${NDK_HOME+x} ];
+  then
+    printf 'Please install android-ndk\n\n'
+    printf 'from https://developer.android.com/ndk/downloads or with sdkmanager'
+    exit 1
+  else
+    printf "Building Andriod targets...";
+fi
+
+CC_aarch64_linux_android="${ANDROID_PREBUILD_BIN}/aarch64-linux-android${API_LEVEL}-clang" \
+CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER="${ANDROID_PREBUILD_BIN}/aarch64-linux-android${API_LEVEL}-clang" \
+  cargo build --target aarch64-linux-android --release
+
+CC_armv7_linux_androideabi="${ANDROID_PREBUILD_BIN}/armv7a-linux-androideabi${API_LEVEL}-clang" \
+CARGO_TARGET_ARMV7_LINUX_ANDROIDEABI_LINKER="${ANDROID_PREBUILD_BIN}/armv7a-linux-androideabi${API_LEVEL}-clang" \
+  cargo build --target armv7-linux-androideabi --release
+
+CC_i686_linux_android="${ANDROID_PREBUILD_BIN}/i686-linux-android${API_LEVEL}-clang" \
+CARGO_TARGET_I686_LINUX_ANDROID_LINKER="${ANDROID_PREBUILD_BIN}/i686-linux-android${API_LEVEL}-clang" \
+  cargo  build --target i686-linux-android --release
+
+CC_x86_64_linux_android="${ANDROID_PREBUILD_BIN}/x86_64-linux-android${API_LEVEL}-clang" \
+  CARGO_TARGET_X86_64_LINUX_ANDROID_LINKER="${ANDROID_PREBUILD_BIN}/x86_64-linux-android${API_LEVEL}-clang" \
+      cargo  build --target x86_64-linux-android --release
+
+for i in "${!ANDROID_ARCHS[@]}";
+  do
+    mkdir -p "../android/src/main/${ANDROID_FOLDER[$i]}"
+    cp "./target/${ANDROID_ARCHS[$i]}/release/lib${LIB_NAME}.so" "../android/src/main/jniLibs/${ANDROID_FOLDER[$i]}/lib${LIB_NAME}.so"
+done

scripts/init.sh

+#!/bin/bash
+source ./scripts/variables.sh
+
+cargo install cargo-lipo
+
+case "$(uname | tr '[:upper:]' '[:lower:]')" in
+   darwin)
+      echo 'Add rust toolchains for android and ios'
+      for i in "${IOS_ARCHS[@]}";
+        do rustup target add "$i";
+      done
+      for i in "${ANDROID_ARCHS[@]}";
+       do rustup target add "$i" ;
+      done
+      ;;
+   linux)
+      echo 'Add rust toolchains for android'
+      for i in "${ANDROID_ARCHS[@]}";
+       do rustup target add "$i" ;
+      done
+     ;;
+   *)
+     echo 'Please use a Linux or Mac to build'
+     ;;
+esac
+
+FILE=./android/app/debug.keystore
+if [ -f "$FILE" ]; then
+    echo "$FILE exist, skip.."
+    else
+    echo "generating andriod debug keystore file.."
+    cd ./android/app && keytool -genkey -v -keystore debug.keystore -storepass android -alias androiddebugkey -keypass android -keyalg RSA -keysize 2048 -validity 10000
+
+fi
+
+
+
+

scripts/variables.sh

+#!/bin/bash
+
+# Change this name to the rust library name
+LIB_NAME=signer
+API_LEVEL=29
+
+ANDROID_ARCHS=(aarch64-linux-android armv7-linux-androideabi i686-linux-android)
+ANDROID_FOLDER=(arm64-v8a armeabi-v7a x86 x86_64)
+ANDROID_BIN_PREFIX=(aarch64-linux-android armv7a-linux-androideabi i686-linux-android)
+IOS_ARCHS=(aarch64-apple-ios x86_64-apple-ios)
+OS_ARCH=$(uname | tr '[:upper:]' '[:lower:]')
+
+ANDROID_PREBUILD_BIN=${NDK_HOME}/toolchains/llvm/prebuilt/${OS_ARCH}-x86_64/bin
+
+#CC_aarch64_linux_android=${ANDROID_PREBUILD_BIN}/aarch64-linux-android29-clang
+#CC_armv7_linux_androideabi=${ANDROID_PREBUILD_BIN}/armv7a-linux-androideabi29-clang
+#CC_i686_linux_android=${ANDROID_PREBUILD_BIN}/i686-linux-android29-clang
+#CC_x86_64_linux_android=${ANDROID_PREBUILD_BIN}/x86_64-linux-android29-clang

setup_linux.sh

-#! /bin/bash
-
-set -e
-
-# android
-rustup target add aarch64-linux-android
-rustup target add armv7-linux-androideabi
-rustup target add i686-linux-android
-
-./create-ndk-standalone.sh
-
-yarn

setup_macos.sh

-#! /bin/bash
-
-set -e
-
-# ios
-rustup target add x86_64-apple-ios
-rustup target add armv7-apple-ios
-rustup target add armv7s-apple-ios
-rustup target add aarch64-apple-ios
-
-# android
-rustup target add aarch64-linux-android
-rustup target add armv7-linux-androideabi
-rustup target add i686-linux-android
-
-./create-ndk-standalone.sh
-
-yarn