feat: create android build script for windows

bdk-android/justfile

@@ -7,6 +7,9 @@ build-linux:
 build-macos:
   bash ./scripts/build-macos-aarch64.sh
 
+build-windows:
+  bash ./scripts/build-windows-x86_64.sh
+
 clean:
   rm -rf ../bdk-ffi/target/
   rm -rf ./build/

bdk-android/scripts/build-windows-x86_64.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+if [ -z "$ANDROID_NDK_ROOT" ]; then
+    echo "Error: ANDROID_NDK_ROOT is not defined in your environment"
+    exit 1
+fi
+
+# Update PATH for Windows
+PATH="$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/windows-x86_64/bin:$PATH"
+CFLAGS="-D__ANDROID_MIN_SDK_VERSION__=24"
+AR="llvm-ar"
+LIB_NAME="libbdkffi.so"
+COMPILATION_TARGET_ARM64_V8A="aarch64-linux-android"
+COMPILATION_TARGET_X86_64="x86_64-linux-android"
+COMPILATION_TARGET_ARMEABI_V7A="armv7-linux-androideabi"
+RESOURCE_DIR_ARM64_V8A="arm64-v8a"
+RESOURCE_DIR_X86_64="x86_64"
+RESOURCE_DIR_ARMEABI_V7A="armeabi-v7a"
+
+# Move to the Rust library directory
+cd ../bdk-ffi/ || exit
+rustup default 1.77.1
+rustup target add $COMPILATION_TARGET_ARM64_V8A $COMPILATION_TARGET_ARMEABI_V7A $COMPILATION_TARGET_X86_64 
+
+# Build the binaries
+# The CC and CARGO_TARGET_<TARGET>_LINUX_ANDROID_LINKER environment variables must be declared on the same line as the cargo build command
+CC="aarch64-linux-android24-clang.cmd" CARGO_TARGET_AARCH64_LINUX_ANDROID_LINKER="aarch64-linux-android24-clang.cmd" cargo build --profile release-smaller --target $COMPILATION_TARGET_ARM64_V8A
+CC="x86_64-linux-android24-clang.cmd" CARGO_TARGET_X86_64_LINUX_ANDROID_LINKER="x86_64-linux-android24-clang.cmd" cargo build --profile release-smaller --target $COMPILATION_TARGET_X86_64
+CC="armv7a-linux-androideabi24-clang.cmd" CARGO_TARGET_ARMV7_LINUX_ANDROIDEABI_LINKER="armv7a-linux-androideabi24-clang.cmd" cargo build --profile release-smaller --target $COMPILATION_TARGET_ARMEABI_V7A
+
+# Copy the binaries to their respective resource directories
+mkdir -p ../bdk-android/lib/src/main/jniLibs/$RESOURCE_DIR_ARM64_V8A/
+mkdir -p ../bdk-android/lib/src/main/jniLibs/$RESOURCE_DIR_ARMEABI_V7A/
+mkdir -p ../bdk-android/lib/src/main/jniLibs/$RESOURCE_DIR_X86_64/
+cp ./target/$COMPILATION_TARGET_ARM64_V8A/release-smaller/$LIB_NAME ../bdk-android/lib/src/main/jniLibs/$RESOURCE_DIR_ARM64_V8A/
+cp ./target/$COMPILATION_TARGET_ARMEABI_V7A/release-smaller/$LIB_NAME ../bdk-android/lib/src/main/jniLibs/$RESOURCE_DIR_ARMEABI_V7A/
+cp ./target/$COMPILATION_TARGET_X86_64/release-smaller/$LIB_NAME ../bdk-android/lib/src/main/jniLibs/$RESOURCE_DIR_X86_64/
+
+# Generate Kotlin bindings using uniffi-bindgen. (Any of the other $COMPILATION_TARGET_* could have been used)
+cargo run --bin uniffi-bindgen generate --library ./target/$COMPILATION_TARGET_ARM64_V8A/release-smaller/$LIB_NAME --language kotlin --out-dir ../bdk-android/lib/src/main/kotlin/ --no-format