From 1c121b8a9a5f4916990adcd16070a0124b0e8fbe Mon Sep 17 00:00:00 2001
From: Egor Tensin <Egor.Tensin@gmail.com>
Date: Sat, 7 Jan 2023 21:01:23 +0100
Subject: workflows/test: test building Boost.Python

---
 .github/workflows/python.yml   | 57 ++++++++++++++++++++++++++++++++++++++++++
 examples/python/CMakeLists.txt | 11 ++++++++
 examples/python/hello.cpp      | 19 ++++++++++++++
 3 files changed, 87 insertions(+)
 create mode 100644 .github/workflows/python.yml
 create mode 100644 examples/python/CMakeLists.txt
 create mode 100644 examples/python/hello.cpp

diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
new file mode 100644
index 0000000..42c8386
--- /dev/null
+++ b/.github/workflows/python.yml
@@ -0,0 +1,57 @@
+name: Boost.Python
+
+on:
+  push:
+  pull_request:
+  schedule:
+    # Weekly, at 5:45 AM on Friday (somewhat randomly chosen).
+    - cron: '45 5 * * 5'
+  workflow_dispatch:
+
+jobs:
+  python:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        include:
+          - version: '1.78.0'
+
+    runs-on: '${{ matrix.os }}'
+
+    name: 'Boost.Python: ${{ matrix.version }} / ${{ matrix.os }}'
+
+    defaults:
+      run:
+        shell: pwsh
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+
+      - name: Cache Boost
+        uses: actions/cache@v3
+        with:
+          path: '${{ runner.workspace }}/boost_*.tar.gz'
+          key: 'boost-${{ matrix.version }}'
+
+      - id: build
+        name: Build Boost
+        uses: ./
+        with:
+          version: '${{ matrix.version }}'
+          libraries: python
+
+      - name: Fix PATH
+        run: |
+          $bin_dir = & python -c "import sysconfig; print(sysconfig.get_path('scripts', 'nt_user'))"
+          echo $bin_dir >> $env:GITHUB_PATH
+        if: runner.os == 'Windows'
+
+      - name: Build an example module
+        run: |
+          cmake-build --platform x64 --boost '${{ steps.build.outputs.root }}' --configuration Release -- ./examples/python/
diff --git a/examples/python/CMakeLists.txt b/examples/python/CMakeLists.txt
new file mode 100644
index 0000000..f43c3a7
--- /dev/null
+++ b/examples/python/CMakeLists.txt
@@ -0,0 +1,11 @@
+cmake_minimum_required(VERSION 3.5) # for Boost::* imported targets
+
+project(example_python)
+
+find_package(Python REQUIRED COMPONENTS Development)
+set(boost_python "python${Python_VERSION_MAJOR}${Python_VERSION_MINOR}")
+find_package(Boost REQUIRED COMPONENTS "${boost_python}")
+
+add_library(hello SHARED hello.cpp)
+target_link_libraries(hello PRIVATE Python::Module)
+target_link_libraries(hello PRIVATE Boost::disable_autolinking "Boost::${boost_python}")
diff --git a/examples/python/hello.cpp b/examples/python/hello.cpp
new file mode 100644
index 0000000..b7516e4
--- /dev/null
+++ b/examples/python/hello.cpp
@@ -0,0 +1,19 @@
+#include <string>
+
+#include <boost/python.hpp>
+using namespace boost::python;
+
+struct World
+{
+    void set(const std::string& msg) { this->msg = msg; }
+    std::string greet() const { return msg; }
+    std::string msg;
+};
+
+BOOST_PYTHON_MODULE(hello)
+{
+    class_<World>("World")
+        .def("greet", &World::greet)
+        .def("set", &World::set)
+    ;
+}
-- 
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