Add pyext test to CI

.github/workflows/ci.yml

@@ -172,6 +172,7 @@ jobs:
           ln -s build/libcodonrt.${LIBEXT} .
           build/codon_test
           test/app/test.sh build
+          (cd test/python && python3 setup.py build_ext --inplace && python3 pyext.py)
         env:
           CODON_PATH: ./stdlib
           PYTHONPATH: .:./test/python

test/python/setup.py

@@ -0,0 +1,58 @@
+import os
+import pathlib
+
+from setuptools import setup, Extension
+from setuptools.command.build_ext import build_ext
+
+class CodonExtension(Extension):
+    def __init__(self, name, source):
+        self.source = source
+        super().__init__(name, sources=[], language='c')
+
+class BuildCodonExt(build_ext):
+    def build_extensions(self):
+        pass
+
+    def run(self):
+        inplace, self.inplace = self.inplace, False
+        super().run()
+        for ext in self.extensions:
+            self.build_codon(ext)
+        if inplace:
+            self.copy_extensions_to_source()
+
+    def build_codon(self, ext):
+        extension_path = pathlib.Path(self.get_ext_fullpath(ext.name))
+        build_dir = pathlib.Path(self.build_temp)
+        os.makedirs(build_dir, exist_ok=True)
+        os.makedirs(extension_path.parent.absolute(), exist_ok=True)
+
+        optimization = '-debug' if self.debug else '-release'
+        self.spawn([
+            '../../build/codon', 'build', optimization,
+            '-pyext', '-o', str(extension_path) + ".o", '-module', ext.name, ext.source])
+
+        print('-->', extension_path)
+        ext.runtime_library_dirs = ["../../build"]
+        self.compiler.link_shared_object(
+            [str(extension_path) + ".o"],
+            str(extension_path),
+            libraries=["codonrt"],
+            library_dirs=ext.runtime_library_dirs,
+            runtime_library_dirs=ext.runtime_library_dirs,
+            extra_preargs=['-Wl,-rpath,@loader_path'],
+            # export_symbols=self.get_export_symbols(ext),
+            debug=self.debug,
+            build_temp=self.build_temp,
+        )
+        self.distribution.codon_lib = extension_path
+
+setup(
+    name='myext',
+    version='0.1',
+    packages=['myext'],
+    ext_modules=[
+        CodonExtension('myext', 'myextension.codon'),
+    ],
+    cmdclass={'build_ext': BuildCodonExt}
+)