Migrate build system to Meson

.github/workflows/main.yml

@@ -18,32 +18,20 @@ jobs:
             matrix:
                 os: [ubuntu-latest, macos-latest, windows-latest]
                 python-version: ['3.12', '3.13', '3.14']
-                architecture: [x64, x86]
-                exclude:
-                    - os: ubuntu-latest
-                      architecture: x86
-                    - os: macos-latest
-                      architecture: x86
         steps:
         - name: Set up the repository
           uses: actions/checkout@v4
           with:
               submodules: recursive
               fetch-depth: 0
-        - name: Set up Python ${{ matrix.python-version }}
+        - name: Set up Python
           uses: actions/setup-python@v5
           with:
             python-version: ${{ matrix.python-version }}
-            architecture: ${{ matrix.architecture }}
-        - name: Install dependencies
+        - name: Build
           run: |
               python -m pip install --upgrade pip
-              pip install setuptools Cython Sphinx flake8
-        - name: Freeze pip
+              python -m pip install .
+        - name: Test
           run: |
-              pip freeze
-        - name: Local build
-          run: |
-            python setup.py build_ext -i
-            python test.py || exit 1
-            git clean -xfd
+              python test.py

README.md

@@ -17,8 +17,21 @@ It provides a single extension class `MemoryAllocator` with `cdef` methods
 Memory is freed when the instance of `MemoryAllocator` is deallocated.
 On failure to allocate the memory, a proper error is raised.
 
+## Building from source
+
+This project uses [meson-python](https://mesonbuild.com/meson-python/) for
+its build backend. A typical editable install looks like:
+
+```shell
+  python -m pip install -e .
+```
+
 # Changelog
 
+## 0.1.5
+- Migrate build system to Meson.
+
+
 ## 0.1.4
 
 - Modernize Python metadata, require Python >= 3.8.

meson.build

@@ -0,0 +1,34 @@
+project(
+    'memory_allocator',
+    'c', 'cython',
+    meson_version: '>=1.2.0',
+)
+# Python
+py_module = import('python')
+py = py_module.find_installation(pure: false)
+py_dep = py.dependency()
+
+py.install_sources(
+    'src/memory_allocator/__init__.py',
+    'src/memory_allocator/__init__.pxd',
+    'src/memory_allocator/memory_allocator.pxd',
+    'src/memory_allocator/memory.pxd',
+    'src/memory_allocator/signals.pxd',
+    subdir: 'memory_allocator',
+)
+
+extensions = {
+    'memory_allocator': files('src/memory_allocator/memory_allocator.pyx'),
+    'test': files('src/memory_allocator/test.pyx'),
+}
+
+src = include_directories('src/memory_allocator')
+foreach name, pyx : extensions
+    py.extension_module(name,
+        pyx,
+        include_directories: [src],
+        dependencies: [py_dep],
+        install: true,
+        subdir: 'memory_allocator'
+    )
+endforeach

pyproject.toml

@@ -1,20 +1,13 @@
 [build-system]
-requires = [
-    "setuptools>=61.2",
-    "Cython",
-    "Cython>=0.29.30; python_version > '3.10'"
-]
-build-backend = "setuptools.build_meta"
+requires = ["meson-python>=0.15.0", "Cython>=3.0"]
+build-backend = "mesonpy"
 
 [project]
 name = "memory_allocator"
 version = "0.1.4"
 description = "An extension class to allocate memory easily with cython"
 authors = [
-    {name = "Jeroen Demeyer, Nathann Cohen, Jonathan Kliem", email = "[email protected]"},
-]
-dependencies = [
-    "Cython",
+    { name = "Jeroen Demeyer, Nathann Cohen, Jonathan Kliem", email = "[email protected]" },
 ]
 requires-python = ">=3.11"
 readme = "README.md"