Add build script without setup.py support

poetry/core/masonry/builders/sdist.py

@@ -89,7 +89,7 @@ def build(self, target_dir=None):  # type: (Path) -> Path
                 else:
                     tar.addfile(tar_info)  # Symlinks & ?
 
-            if self._poetry.package.build_config.get("generate-setup-file", True):
+            if self._poetry.package.build_should_generate_setup():
                 setup = self.build_setup()
                 tar_info = tarfile.TarInfo(pjoin(tar_dir, "setup.py"))
                 tar_info.size = len(setup)

poetry/core/masonry/builders/wheel.py

@@ -77,8 +77,13 @@ def build(self):
         with zipfile.ZipFile(
             os.fdopen(fd, "w+b"), mode="w", compression=zipfile.ZIP_DEFLATED
         ) as zip_file:
-            self._copy_module(zip_file)
-            self._build(zip_file)
+            if not self._poetry.package.build_should_generate_setup():
+                self._build(zip_file)
+                self._copy_module(zip_file)
+            else:
+                self._copy_module(zip_file)
+                self._build(zip_file)
+
             self._write_metadata(zip_file)
             self._write_record(zip_file)
 
@@ -91,44 +96,59 @@ def build(self):
 
     def _build(self, wheel):
         if self._package.build_script:
-            with SdistBuilder(poetry=self._poetry).setup_py() as setup:
-                # We need to place ourselves in the temporary
-                # directory in order to build the package
+            if not self._poetry.package.build_should_generate_setup():
+                # Since we have a build script but no setup.py generation is required,
+                # we assume that the build script will build and copy the files
+                # directly.
+                # That way they will be picked up when adding files to the wheel.
                 current_path = os.getcwd()
                 try:
                     os.chdir(str(self._path))
-                    self._run_build_command(setup)
+                    self._run_build_script(self._package.build_script)
                 finally:
                     os.chdir(current_path)
+            else:
+                with SdistBuilder(poetry=self._poetry).setup_py() as setup:
+                    # We need to place ourselves in the temporary
+                    # directory in order to build the package
+                    current_path = os.getcwd()
+                    try:
+                        os.chdir(str(self._path))
+                        self._run_build_command(setup)
+                    finally:
+                        os.chdir(current_path)
 
-                build_dir = self._path / "build"
-                lib = list(build_dir.glob("lib.*"))
-                if not lib:
-                    # The result of building the extensions
-                    # does not exist, this may due to conditional
-                    # builds, so we assume that it's okay
-                    return
+                    build_dir = self._path / "build"
+                    lib = list(build_dir.glob("lib.*"))
+                    if not lib:
+                        # The result of building the extensions
+                        # does not exist, this may due to conditional
+                        # builds, so we assume that it's okay
+                        return
 
-                lib = lib[0]
+                    lib = lib[0]
 
-                for pkg in lib.glob("**/*"):
-                    if pkg.is_dir() or self.is_excluded(pkg):
-                        continue
+                    for pkg in lib.glob("**/*"):
+                        if pkg.is_dir() or self.is_excluded(pkg):
+                            continue
 
-                    rel_path = str(pkg.relative_to(lib))
+                        rel_path = str(pkg.relative_to(lib))
 
-                    if rel_path in wheel.namelist():
-                        continue
+                        if rel_path in wheel.namelist():
+                            continue
 
-                    logger.debug(" - Adding: {}".format(rel_path))
+                        logger.debug(" - Adding: {}".format(rel_path))
 
-                    self._add_file(wheel, pkg, rel_path)
+                        self._add_file(wheel, pkg, rel_path)
 
     def _run_build_command(self, setup):
         subprocess.check_call(
             [sys.executable, str(setup), "build", "-b", str(self._path / "build")]
         )
 
+    def _run_build_script(self, build_script):
+        subprocess.check_call([sys.executable, build_script])
+
     def _copy_module(self, wheel):  # type: (zipfile.ZipFile) -> None
         to_add = self.find_files_to_add()
 

poetry/core/packages/project_package.py

@@ -58,3 +58,6 @@ def urls(self):
         urls.update(self.custom_urls)
 
         return urls
+
+    def build_should_generate_setup(self):  # type: () -> bool
+        return self.build_config.get("generate-setup-file", True)

tests/masonry/builders/fixtures/extended_with_no_setup/README.rst

@@ -0,0 +1,2 @@
+Module 1
+========

tests/masonry/builders/fixtures/extended_with_no_setup/build.py

@@ -0,0 +1,27 @@
+import os
+import shutil
+from distutils.command.build_ext import build_ext
+from distutils.core import Distribution, Extension
+
+extensions = [Extension("extended.extended", ["extended/extended.c"])]
+
+
+def build():
+    distribution = Distribution({"name": "extended", "ext_modules": extensions})
+    distribution.package_dir = "extended"
+
+    cmd = build_ext(distribution)
+    cmd.ensure_finalized()
+    cmd.run()
+
+    # Copy built extensions back to the project
+    for output in cmd.get_outputs():
+        relative_extension = os.path.relpath(output, cmd.build_lib)
+        shutil.copyfile(output, relative_extension)
+        mode = os.stat(relative_extension).st_mode
+        mode |= (mode & 0o444) >> 2
+        os.chmod(relative_extension, mode)
+
+
+if __name__ == "__main__":
+    build()

tests/masonry/builders/fixtures/extended_with_no_setup/extended/extended.c

@@ -0,0 +1,58 @@
+#include <Python.h>
+
+
+static PyObject *hello(PyObject *self) {
+    return PyUnicode_FromString("Hello");
+}
+
+
+static PyMethodDef module_methods[] = {
+    {
+        "hello",
+        (PyCFunction) hello,
+        NULL,
+        PyDoc_STR("Say hello.")
+    },
+    {NULL}
+};
+
+#if PY_MAJOR_VERSION >= 3
+static struct PyModuleDef moduledef = {
+    PyModuleDef_HEAD_INIT,
+    "extended",
+    NULL,
+    -1,
+    module_methods,
+    NULL,
+    NULL,
+    NULL,
+    NULL,
+};
+#endif
+
+PyMODINIT_FUNC
+#if PY_MAJOR_VERSION >= 3
+PyInit_extended(void)
+#else
+init_extended(void)
+#endif
+{
+    PyObject *module;
+
+#if PY_MAJOR_VERSION >= 3
+    module = PyModule_Create(&moduledef);
+#else
+    module = Py_InitModule3("extended", module_methods, NULL);
+#endif
+
+    if (module == NULL)
+#if PY_MAJOR_VERSION >= 3
+        return NULL;
+#else
+        return;
+#endif
+
+#if PY_MAJOR_VERSION >= 3
+    return module;
+#endif
+}

tests/masonry/builders/fixtures/extended_with_no_setup/pyproject.toml

@@ -0,0 +1,16 @@
+[tool.poetry]
+name = "extended"
+version = "0.1"
+description = "Some description."
+authors = [
+    "Sébastien Eustace <sebastien@eustace.io>"
+]
+license = "MIT"
+
+readme = "README.rst"
+
+homepage = "https://python-poetry.org/"
+
+[tool.poetry.build]
+script = "build.py"
+generate-setup-file = false

tests/masonry/builders/test_complete.py

@@ -95,6 +95,63 @@ def test_wheel_c_extension():
         zip.close()
 
 
+@pytest.mark.skipif(
+    sys.platform == "win32"
+    and sys.version_info <= (3, 6)
+    or platform.python_implementation().lower() == "pypy",
+    reason="Disable test on Windows for Python <=3.6 and for PyPy",
+)
+def test_wheel_c_extension_with_no_setup():
+    module_path = fixtures_dir / "extended_with_no_setup"
+    builder = CompleteBuilder(Factory().create_poetry(module_path))
+    builder.build()
+
+    sdist = fixtures_dir / "extended_with_no_setup" / "dist" / "extended-0.1.tar.gz"
+
+    assert sdist.exists()
+
+    with tarfile.open(str(sdist), "r") as tar:
+        assert "extended-0.1/build.py" in tar.getnames()
+        assert "extended-0.1/extended/extended.c" in tar.getnames()
+
+    whl = list((module_path / "dist").glob("extended-0.1-cp*-cp*-*.whl"))[0]
+
+    assert whl.exists()
+
+    zip = zipfile.ZipFile(str(whl))
+
+    has_compiled_extension = False
+    for name in zip.namelist():
+        if name.startswith("extended/extended") and name.endswith((".so", ".pyd")):
+            has_compiled_extension = True
+
+    assert has_compiled_extension
+
+    try:
+        wheel_data = decode(zip.read("extended-0.1.dist-info/WHEEL"))
+
+        assert (
+            re.match(
+                """(?m)^\
+Wheel-Version: 1.0
+Generator: poetry {}
+Root-Is-Purelib: false
+Tag: cp[23]\\d-cp[23]\\dm?u?-.+
+$""".format(
+                    __version__
+                ),
+                wheel_data,
+            )
+            is not None
+        )
+
+        records = decode(zip.read("extended-0.1.dist-info/RECORD"))
+
+        assert re.search(r"\s+extended/extended.*\.(so|pyd)", records) is not None
+    finally:
+        zip.close()
+
+
 @pytest.mark.skipif(
     sys.platform == "win32"
     and sys.version_info <= (3, 6)