Test meson integration

Fix #2236

Author: serge-sans-paille

.github/workflows/core.yml

@@ -26,6 +26,7 @@ jobs:
         pip install scipy-openblas64
         pip install pytest-xdist
         sudo apt install ${{ matrix.cpp-version }}
+        sudo apt install libopenblas-dev  # for meson integration testing
         if test ${{ matrix.python-version }} != 'pypy-3.9'; then pip install scipy ; fi
     - name: Setup
       run: |

pyproject.toml

@@ -27,7 +27,7 @@ Changelog = "https://pythran.readthedocs.io/en/latest/Changelog.html"
 
 [project.optional-dependencies]
 doc = ["numpy", "nbsphinx", "scipy", "guzzle_sphinx_theme"]
-test = ["ipython", "nbval", "cython", "wheel", "packaging"]
+test = ["ipython", "nbval", "cython", "wheel", "packaging", "ninja", "meson"]
 
 [project.scripts]
 pythran = "pythran.run:run"

pythran/tests/test_distutils.py

@@ -170,3 +170,31 @@ def test_setup_bdist_install3(self):
         demo_so = find_so(r"a.*\.so", dist_path)
         self.assertIsNotNone(demo_so)
         shutil.rmtree(dist_path)
+
+try:
+    check_call(['ninja', '--version'])
+    has_ninja = True
+except:
+    has_ninja = False
+
+try:
+    check_call(['meson', '--version'])
+    has_meson = True
+except:
+    has_meson = False
+
+class TestMeson(unittest.TestCase):
+
+    @unittest.skipIf(not has_meson, "meson not found")
+    @unittest.skipIf(not has_ninja, "ninja not found")
+    def test_meson_build(self):
+        srcdir = os.path.join(cwd, 'test_distutils')
+        builddir = os.path.join(srcdir, '_meson_build')
+        shutil.rmtree(builddir, ignore_errors=True)
+        check_call(['meson', 'setup', builddir, '.'],
+                   cwd=srcdir)
+        check_call(['ninja', '-v'],
+                   cwd=builddir)
+        check_call([python, '-c', 'import b'],
+                   cwd=builddir)
+

pythran/tests/test_distutils/meson.build

@@ -0,0 +1,31 @@
+project('pythran-test', 'cpp')
+
+pymod = import('python')
+py = pymod.find_installation(modules:['pythran'])
+
+pythran_cmd = [py.path(), '-m', 'pythran.run', '-E', '@INPUT@', '-o', '@OUTPUT@']
+
+pythranrc = join_paths(meson.project_source_root(), 'pythran.rc')
+
+pythran_env = environment()
+pythran_env.set('PYTHRANRC', pythranrc)
+
+b_cpp = custom_target(
+  'b_cpp',
+  output : 'b.cpp',
+  input: 'b.py',
+  command: pythran_cmd,
+  env: pythran_env,
+  depend_files: [pythranrc],
+)
+
+pythran_cppflags = run_command(py.path(), '-m', 'pythran.config', '--cflags', check:true, env:pythran_env).stdout().strip().split()
+pythran_ldflags = run_command(py.path(), '-m', 'pythran.config', '--libs', check:true, env:pythran_env).stdout().strip().split()
+
+py.extension_module(
+  'b',
+  b_cpp,
+  cpp_args: pythran_cppflags,
+  link_args: pythran_ldflags,
+  install: true,
+)

pythran/tests/test_distutils/pythran.rc

@@ -0,0 +1,3 @@
+[compiler]
+blas=openblas
+include_dirs=/usr/include/openblas