build(android-native): add split abi config

refactor android build script

nym-connect/native/android/app/build.gradle

@@ -27,6 +27,16 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+
+    splits {
+        abi {
+            enable true
+            reset()
+            include "x86_64", "arm64-v8a"
+            universalApk false
+        }
+    }
+
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8

sdk/lib/socks5-listener/build-android.sh

@@ -1,16 +1,56 @@
-#!/bin/sh
+#!/bin/bash
 
-arch=x86_64
+# This script builds the lib for android and moves the shared
+# objects (*.so) into the right app's directories
+#
+# currently it builds for:
+# - aarch64 (arm 64)
+# - x86_64 (classic PC 64)
+#
+# ⚠ to build for release set the env var `RELEASE=true`
 
-# TODO to compile for arm64 v8a uncomment this
-# arch=aarch64
+set -E
+set -o pipefail
+trap 'catch $? ${FUNCNAME[0]:-main} $LINENO' ERR
+
+# ANSI style codes
+RED="\e[38;5;1m" # red
+GRN="\e[38;5;2m" # green
+YLW="\e[38;5;3m" # yellow
+BLD="\e[1m"      # bold
+RS="\e[0m"       # style reset
+# bold variants
+B_RED="$BLD$RED"
+B_GRN="$BLD$GRN"
+B_YLW="$BLD$YLW"
+
+catch() {
+  echo -e " $B_RED✗$RS unexpected error, $BLD$2$RS [$BLD$1$RS] L#$BLD$3$RS"
+  exit 1
+}
 
 export API=33
 export TOOLCHAIN="$NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64"
-export TARGET_CC="$TOOLCHAIN/bin/$arch-linux-android$API-clang"
 export TARGET_AR="$TOOLCHAIN/bin/llvm-ar"
 export TARGET_RANLIB="$TOOLCHAIN/bin/llvm-ranlib"
 export CARGO_TARGET_X86_64_LINUX_ANDROID_LINKER="$TOOLCHAIN/bin/x86_64-linux-android$API-clang"
 export CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER="$TOOLCHAIN/bin/aarch64-linux-android$API-clang"
 
-cargo build --lib --target $arch-linux-android --release
+build () {
+  echo -e " $B_YLW⚡$RS building for arch $BLD$1$RS"
+  export TARGET_CC="$TOOLCHAIN/bin/$1-linux-android$API-clang"
+  if [ "$RELEASE" = true ]; then
+    cargo build --lib --target "$1-linux-android" --release
+    cp "target/$1-linux-android/release/libnym_socks5_listener.so" "../../../nym-connect/native/android/app/src/main/jniLibs/$2/"
+  else
+    cargo build --lib --target "$1-linux-android"
+    cp "target/$1-linux-android/debug/libnym_socks5_listener.so" "../../../nym-connect/native/android/app/src/main/jniLibs/$2/"
+  fi
+  echo -e " $B_GRN✓$RS lib successfully builded for $BLD$1$RS, moved under app's dir$BLD jniLibs/$2/$RS"
+}
+
+# build for x86_64
+build x86_64 x86_64
+
+# build for aarch64
+build aarch64 arm64-v8a