CW-1020 arm64 linux support (#2110)

* arm64 linux support

* add missing dependencies to Dockerfile

* run everything in docker to not break permissions

* remove current linux dir

* proper directory name

* Clean up build script by removing .flatpak-builder directory flatpak before build process

* account for arm64 in docs [skip ci]

---------

Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>

scripts/linux/build_cake_release.sh

@@ -0,0 +1,98 @@
+#!/bin/bash
+
+# build_cake_release.sh - Script to build Cake Wallet for Linux
+# Usage: ./build_cake_release.sh --amd64 [--arm64] [--app=cakewallet|monero.com]
+
+set -e
+
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd "$SCRIPT_DIR"
+
+
+# Default values
+BUILD_AMD64=false
+BUILD_ARM64=false
+APP_TYPE="cakewallet"
+DOCKER_IMAGE="ghcr.io/cake-tech/cake_wallet:debian12-flutter3.27.4-go1.24.1"
+
+# Parse arguments
+for arg in "$@"
+do
+    case $arg in
+        --amd64)
+        BUILD_AMD64=true
+        shift
+        ;;
+        --arm64)
+        BUILD_ARM64=true
+        shift
+        ;;
+        --app=*)
+        APP_TYPE="${arg#*=}"
+        shift
+        ;;
+        *)
+        echo "Unknown argument: $arg"
+        echo "Usage: ./build_cake_release.sh --amd64 [--arm64] [--app=cakewallet|monero.com]"
+        exit 1
+        ;;
+    esac
+done
+
+cd ../..
+
+# Validate arguments
+if [[ "$BUILD_AMD64" == "false" && "$BUILD_ARM64" == "false" ]]; then
+    echo "Error: At least one architecture (--amd64 or --arm64) must be specified."
+    echo "Usage: ./build_cake_release.sh --amd64 [--arm64] [--app=cakewallet|monero.com]"
+    exit 1
+fi
+
+if [[ "$APP_TYPE" != "cakewallet" && "$APP_TYPE" != "monero.com" ]]; then
+    echo "Error: App type must be either 'cakewallet' or 'monero.com'"
+    echo "Usage: ./build_cake_release.sh --amd64 [--arm64] [--app=cakewallet|monero.com]"
+    exit 1
+fi
+
+# Function to build for a specific architecture
+build_for_arch() {
+    local arch=$1
+    local flutter_arch=$2
+    echo "Building $APP_TYPE for Linux ($arch)"
+    
+    docker run --privileged -v$(pwd):$(pwd) -w $(pwd) -i --rm --platform linux/$arch $DOCKER_IMAGE bash -x << EOF
+set -x -e
+pushd scripts
+    ./gen_android_manifest.sh
+popd
+pushd scripts/linux
+    source ./app_env.sh $APP_TYPE
+    ./app_config.sh
+    ./build_monero_all.sh
+popd
+flutter clean
+./model_generator.sh
+dart run tool/generate_localization.dart
+flutter build linux
+rm -rf build/linux/current
+cp -r build/linux/$flutter_arch build/linux/current
+rm -rf .flatpak-builder
+flatpak-builder --force-clean flatpak-build com.cakewallet.CakeWallet.yml
+flatpak build-export export flatpak-build
+flatpak build-bundle export build/linux/current/cake_wallet.flatpak com.cakewallet.CakeWallet
+cp build/linux/current/cake_wallet.flatpak build/linux/$flutter_arch/
+EOF
+}
+
+# Build for specified architectures
+echo "Building $APP_TYPE for Linux"
+if [[ "$BUILD_AMD64" == "true" ]]; then
+    build_for_arch "amd64" "x64"
+fi
+
+if [[ "$BUILD_ARM64" == "true" ]]; then
+    build_for_arch "arm64" "arm64"
+fi
+
+echo "Build process completed."

scripts/linux/build_monero_all.sh

@@ -10,15 +10,19 @@ cd "$(dirname "$0")"
 for COIN in monero wownero;
 do
     pushd ../monero_c
-        for target in x86_64-linux-gnu # aarch64-linux-gnu
-        do
-            if [[ -f "release/${COIN}/${target}_libwallet2_api_c.so" ]];
-            then
-                echo "file exist, not building monero_c for ${COIN}/$target.";
-            else
-                ./build_single.sh ${COIN} $target -j$MAKE_JOB_COUNT
-                unxz -f ../monero_c/release/${COIN}/${target}_libwallet2_api_c.so.xz
-            fi
-        done
+        # Determine target architecture based on system architecture
+        if [[ $(uname -m) == "arm64" || $(uname -m) == "aarch64" ]]; then
+            target="aarch64-linux-gnu"
+        else
+            target="x86_64-linux-gnu"
+        fi
+        
+        if [[ -f "release/${COIN}/${target}_libwallet2_api_c.so" ]];
+        then
+            echo "file exist, not building monero_c for ${COIN}/$target.";
+        else
+            ./build_single.sh ${COIN} $target -j$MAKE_JOB_COUNT
+            unxz -f ../monero_c/release/${COIN}/${target}_libwallet2_api_c.so.xz
+        fi
     popd
 done