From 2f1e049bc6937efab3fd7a1d136978fc3339cf30 Mon Sep 17 00:00:00 2001
From: Steve Peters <scpeters@openrobotics.org>
Date: Thu, 18 Apr 2024 11:14:10 -0700
Subject: [PATCH] Enable 24.04 CI, remove distutils dependency (#587)

* Enable GitHub workflow on Ubuntu Noble
* Require cmake version 3.22.1
  Part of gazebosim/gz-cmake#350.
* Remove old ruby cmake code
* Remove old python cmake code
  Also don't need to install python3-distutils anymore.

Signed-off-by: Steve Peters <scpeters@openrobotics.org>
---
 .github/ci/packages.apt            |  1 -
 .github/workflows/ci.yml           |  9 +++++++++
 CMakeLists.txt                     |  2 +-
 examples/CMakeLists.txt            |  2 +-
 src/python_pybind11/CMakeLists.txt | 15 +++------------
 src/ruby/CMakeLists.txt            |  6 +-----
 6 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/.github/ci/packages.apt b/.github/ci/packages.apt
index fbdc0c36d..116b35036 100644
--- a/.github/ci/packages.apt
+++ b/.github/ci/packages.apt
@@ -2,7 +2,6 @@ libeigen3-dev
 libgz-cmake4-dev
 libgz-utils3-dev
 libpython3-dev
-python3-distutils
 python3-pybind11
 python3-pytest
 ruby-dev
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ab45c9400..1a3c3663a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,3 +17,12 @@ jobs:
           cppcheck-enabled: true
           cpplint-enabled: true
           doxygen-enabled: true
+  noble-ci:
+    runs-on: ubuntu-latest
+    name: Ubuntu Noble CI
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Compile and test
+        id: ci
+        uses: gazebo-tooling/action-gz-ci@noble
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 439088a0b..2526df888 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.10.2 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.22.1 FATAL_ERROR)
 
 #============================================================================
 # Initialize the project
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 3a532ee2c..c68d89487 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.22.1 FATAL_ERROR)
 
 project(gz-math-examples)
 
diff --git a/src/python_pybind11/CMakeLists.txt b/src/python_pybind11/CMakeLists.txt
index 935d34ac6..90d1dcacb 100644
--- a/src/python_pybind11/CMakeLists.txt
+++ b/src/python_pybind11/CMakeLists.txt
@@ -73,18 +73,9 @@ if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
 endif()
 
 if(USE_SYSTEM_PATHS_FOR_PYTHON_INSTALLATION)
-  if(${CMAKE_VERSION} VERSION_LESS "3.12.0")
-    execute_process(
-      COMMAND "${PYTHON_EXECUTABLE}" -c "if True:
-  from distutils import sysconfig as sc
-  print(sc.get_python_lib(plat_specific=True))"
-      OUTPUT_VARIABLE Python3_SITEARCH
-      OUTPUT_STRIP_TRAILING_WHITESPACE)
-  else()
-    # Get install variable from Python3 module
-    # Python3_SITEARCH is available from 3.12 on, workaround if needed:
-    find_package(Python3 COMPONENTS Interpreter)
-  endif()
+  # Get install variable from Python3 module
+  # Python3_SITEARCH is available from 3.12 on, workaround if needed:
+  find_package(Python3 COMPONENTS Interpreter)
 
   if(USE_DIST_PACKAGES_FOR_PYTHON)
     string(REPLACE "site-packages" "dist-packages" GZ_PYTHON_INSTALL_PATH ${Python3_SITEARCH})
diff --git a/src/ruby/CMakeLists.txt b/src/ruby/CMakeLists.txt
index 8ad32202b..7c541051d 100644
--- a/src/ruby/CMakeLists.txt
+++ b/src/ruby/CMakeLists.txt
@@ -44,11 +44,7 @@ if (RUBY_FOUND)
 
   # Create the ruby library
   set(CMAKE_SWIG_OUTDIR "${CMAKE_BINARY_DIR}/lib/ruby")
-  if(CMAKE_VERSION VERSION_GREATER 3.8.0)
-    SWIG_ADD_LIBRARY(${SWIG_RB_LIB} LANGUAGE ruby SOURCES ruby.i ${swig_i_files})
-  else()
-    SWIG_ADD_MODULE(${SWIG_RB_LIB} ruby ruby.i ${swig_i_files})
-  endif()
+  SWIG_ADD_LIBRARY(${SWIG_RB_LIB} LANGUAGE ruby SOURCES ruby.i ${swig_i_files})
 
   # Suppress warnings on SWIG-generated files
   target_compile_options(${SWIG_RB_LIB} PRIVATE