From 7b0f233251dd5c452794b54e8e14c5f188c14697 Mon Sep 17 00:00:00 2001
From: Roman Dmitrienko <roman@dmitrienko.com>
Date: Wed, 28 Feb 2024 22:52:56 +0100
Subject: [PATCH 1/2] Add the Go bindings build script.

---
 scripts/uniffi_bindgen_generate_go.sh | 29 +++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100755 scripts/uniffi_bindgen_generate_go.sh

diff --git a/scripts/uniffi_bindgen_generate_go.sh b/scripts/uniffi_bindgen_generate_go.sh
new file mode 100755
index 000000000..60f28f8ab
--- /dev/null
+++ b/scripts/uniffi_bindgen_generate_go.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+set -e
+
+uniffi-bindgen-go bindings/ldk_node.udl -o ffi/golang -c ./uniffi.toml
+
+build_lib() {
+  local TOOL=$1
+  local TARGET=$2
+  local OUTPUT_FILE=$3
+
+  $TOOL build --release --target $TARGET --features uniffi || exit 1
+  mkdir -p "ffi/golang/ldk_node/$TARGET" || exit 1
+  cp "target/$TARGET/release/$OUTPUT_FILE" "ffi/golang/ldk_node/$TARGET/" || exit 1
+}
+
+is_target_installed() {
+  local TARGET=$1
+  rustup target list --installed | grep -q $TARGET
+}
+
+# If we're running on macOS, build the macOS library using the host compiler.
+# Cross compilation is not supported (needs more complex setup).
+if [[ "$OSTYPE" == "darwin"* ]]; then
+  build_lib "cargo" "aarch64-apple-darwin" "libldk_node.dylib"
+fi
+
+build_lib "cross" "x86_64-unknown-linux-gnu" "libldk_node.so"
+build_lib "cross" "x86_64-pc-windows-gnu" "ldk_node.dll"

From c10b391c33a70cac5939241790075f456e79b3dc Mon Sep 17 00:00:00 2001
From: Roman Dmitrienko <roman@dmitrienko.com>
Date: Fri, 1 Mar 2024 21:42:26 +0100
Subject: [PATCH 2/2] Check if cross-rs is available, provide instructions on
 installation if it is not.

---
 scripts/uniffi_bindgen_generate_go.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/uniffi_bindgen_generate_go.sh b/scripts/uniffi_bindgen_generate_go.sh
index 60f28f8ab..9cf563a9e 100755
--- a/scripts/uniffi_bindgen_generate_go.sh
+++ b/scripts/uniffi_bindgen_generate_go.sh
@@ -2,6 +2,12 @@
 
 set -e
 
+if ! command -v cross &> /dev/null; then
+  echo "cross-rs is required to build bindings. Install it by running:"
+  echo "  cargo install cross --git https://github.com/cross-rs/cross"
+  exit 1
+fi
+
 uniffi-bindgen-go bindings/ldk_node.udl -o ffi/golang -c ./uniffi.toml
 
 build_lib() {