From fec283e5d71c4d2f26a5d010bd99c752dfd62865 Mon Sep 17 00:00:00 2001
From: Elias Rohrer <dev@tnull.de>
Date: Wed, 13 Dec 2023 14:47:18 +0100
Subject: [PATCH] Use CI to build Python wheels on different platforms

---
 .github/workflows/build-python-wheels.yml | 30 +++++++++++++++++++++++
 bindings/python/MANIFEST.in               |  3 +++
 bindings/python/setup.cfg                 |  1 +
 scripts/uniffi_bindgen_generate_python.sh | 13 +++++++++-
 4 files changed, 46 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/build-python-wheels.yml
 create mode 100644 bindings/python/MANIFEST.in

diff --git a/.github/workflows/build-python-wheels.yml b/.github/workflows/build-python-wheels.yml
new file mode 100644
index 000000000..aeae96eb6
--- /dev/null
+++ b/.github/workflows/build-python-wheels.yml
@@ -0,0 +1,30 @@
+name: Build Python Wheels
+
+on: [push, pull_request]
+
+jobs:
+  build_wheels:
+    name: Build wheels on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-20.04, windows-2019, macos-11]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Generate Python bindings
+        run: bash ./scripts/uniffi_bindgen_generate_python.sh
+
+      - name: Build wheels
+        uses: pypa/cibuildwheel@v1.12.0
+        env:
+          CIBW_ARCHS_MACOS: "x86_64 arm64 universal2"
+          CIBW_ARCHS_LINUX: "auto aarch64"
+          CIBW_BUILD_VERBOSITY: 1
+        with:
+          package-dir: ./bindings/python
+
+      - uses: actions/upload-artifact@v3
+        with:
+          path: ./wheelhouse/*.whl
diff --git a/bindings/python/MANIFEST.in b/bindings/python/MANIFEST.in
new file mode 100644
index 000000000..ce675c331
--- /dev/null
+++ b/bindings/python/MANIFEST.in
@@ -0,0 +1,3 @@
+include ./src/ldk_node/libldk_node.dylib
+include ./src/ldk_node/libldk_node.so
+include ./src/ldk_node/libldk_node.dll
diff --git a/bindings/python/setup.cfg b/bindings/python/setup.cfg
index bd4e64216..3583e701b 100644
--- a/bindings/python/setup.cfg
+++ b/bindings/python/setup.cfg
@@ -11,3 +11,4 @@ where = src
 ldk_node =
     *.so
     *.dylib
+    *.dll
diff --git a/scripts/uniffi_bindgen_generate_python.sh b/scripts/uniffi_bindgen_generate_python.sh
index 14e7b4f86..ea39979d6 100755
--- a/scripts/uniffi_bindgen_generate_python.sh
+++ b/scripts/uniffi_bindgen_generate_python.sh
@@ -3,9 +3,20 @@ BINDINGS_DIR="./bindings/python/src/ldk_node"
 UNIFFI_BINDGEN_BIN="cargo run --manifest-path bindings/uniffi-bindgen/Cargo.toml"
 
 if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+	# Linux
 	DYNAMIC_LIB_PATH="./target/release-smaller/libldk_node.so"
-else
+elif [[ "$OSTYPE" == "darwin"* ]]; then
+	# macOS
 	DYNAMIC_LIB_PATH="./target/release-smaller/libldk_node.dylib"
+elif [[ "$OSTYPE" == "msys"* ]]; then
+	# Windows
+	DYNAMIC_LIB_PATH="./target/release-smaller/libldk_node.dll"
+elif [[ "$OSTYPE" == "cygwin"* ]]; then
+	# Windows
+	DYNAMIC_LIB_PATH="./target/release-smaller/libldk_node.dll"
+else
+	echo "Unsupported platform!: $OSTYPE"
+	exit -1
 fi
 
 cargo build --profile release-smaller --features uniffi || exit 1