Entry point support

README.md

@@ -104,7 +104,7 @@ example projects.
 
 ## Planned features
 
- - Entry point support
- - Namespace package support ([PEP 420](https://www.python.org/dev/peps/pep-0420/))
- - Doxygen and Sphinx support
- - OSX support
+ - [x] ~~Entry point support~~
+ - [ ] Namespace package support ([PEP 420](https://www.python.org/dev/peps/pep-0420/))
+ - [ ] Doxygen and Sphinx support
+ - [ ] OSX support

examples/minimal/src-python/minimal/__init__.py

@@ -1,4 +1,4 @@
 """
 A simple, minimal example of building a Python C module using CMake.
 """
-__version__ = '0.0.5'
+__version__ = '0.0.6'

examples/pybind11-project/CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.20)
-project(py-build-cmake VERSION 0.0.5)
+project(py-build-cmake VERSION 0.0.6)
 set(PY_VERSION_SUFFIX "")
 set(PY_FULL_VERSION ${PROJECT_VERSION}${PY_VERSION_SUFFIX})
 

examples/pybind11-project/pyproject.toml

@@ -19,6 +19,9 @@ urls = { "Documentation" = "https://tttapa.github.io/" }
 dependencies = []
 dynamic = ["version", "description"]
 
+[project.scripts]
+add = "pybind11_project.add:main"
+
 [build-system]
 requires = ["py-build-cmake", "pybind11", "pybind11-stubgen", "mypy"]
 build-backend = "py_build_cmake.build"

examples/pybind11-project/python-src/pybind11_project/__init__.py

@@ -1,2 +1,2 @@
 """Example project using the py-build-cmake build backend and pybind11."""
-__version__ = '0.0.5'
+__version__ = '0.0.6'

examples/pybind11-project/python-src/pybind11_project/add.py

@@ -0,0 +1,10 @@
+from .add_module import add
+import sys
+
+def main():
+    """Script that adds all command line arguments as integers."""
+    sum = 0
+    for el in sys.argv[1:]:
+        sum = add(sum, int(el))
+    print(sum)
+    return 0

src/py_build_cmake/__init__.py

@@ -2,4 +2,4 @@
 Modern, PEP 517 compliant build backend for building Python packages with
 extensions built using CMake.
 """
-__version__ = '0.0.5'
+__version__ = '0.0.6'

src/py_build_cmake/build.py

@@ -20,8 +20,6 @@ class _BuildBackend(object):
     def __init__(self) -> None:
         self.verbose = False
 
-    fileopt = {'encoding': 'utf-8'}
-
     def get_requires_for_build_wheel(self, config_settings=None):
         """https://www.python.org/dev/peps/pep-0517/#get-requires-for-build-wheel"""
         return []
@@ -167,14 +165,14 @@ def build_wheel_in_dir(self,
 
         # Write metadata
         metadata_path = distinfo / 'METADATA'
-        with open(metadata_path, 'w', **self.fileopt) as f:
+        with open(metadata_path, 'w', encoding='utf-8') as f:
             metadata.write_metadata_file(f)
 
         # Write or copy license
         self.write_license_files(cfg.license, src_dir, distinfo)
 
-        # TODO: write entrypoints
-        self.write_entrypoints(cfg)
+        # Write entrypoints
+        self.write_entrypoints(distinfo, cfg)
 
         # Generate .pyi stubs
         if cfg.stubgen is not None and not editable:
@@ -243,14 +241,14 @@ def normalize_version(self, version):
 
     def write_license_files(self, license, srcdir: Path, distinfo_dir: Path):
         if 'text' in license:
-            with open(distinfo_dir / 'LICENSE', 'w', encoding='utf-8') as f:
+            with (distinfo_dir / 'LICENSE').open('w', encoding='utf-8') as f:
                 f.write(license['text'])
         elif 'file' in license:
             shutil.copy2(srcdir / license['file'], distinfo_dir)
 
     def write_editable_wrapper(self, tmp_build_dir: Path, src_dir: Path, pkg):
         # Write a fake __init__.py file that points to the development folder
-        tmp_pkg = tmp_build_dir / pkg.name
+        tmp_pkg: Path = tmp_build_dir / pkg.name
         os.makedirs(tmp_pkg, exist_ok=True)
         special_dunders = [
             '__builtins__', '__cached__', '__file__', '__loader__', '__name__',
@@ -276,7 +274,7 @@ def write_editable_wrapper(self, tmp_build_dir: Path, src_dir: Path, pkg):
             del _util
             """
         (tmp_pkg / '__init__.py').write_text(textwrap.dedent(content),
-                                             **self.fileopt)
+                                             encoding='utf-8')
         # Add the py.typed file if it exists, so mypy picks up the stubs for
         # the C++ extensions
         py_typed: Path = pkg.path / 'py.typed'
@@ -427,10 +425,10 @@ def get_build_config_name(cross_cfg):
                     _BuildBackend.get_cross_tags(cross_cfg).values()))
         return buildconfig
 
-    def write_entrypoints(self, cfg: Config):
-        if cfg.entrypoints:
-            print(cfg.entrypoints)
-            raise RuntimeWarning("Entrypoints are not currently supported")
+    def write_entrypoints(self, distinfo: Path, cfg: Config):
+        from flit_core.common import write_entry_points
+        with (distinfo / 'entry_points.txt').open('w', encoding='utf-8') as f:
+            write_entry_points(cfg.entrypoints, f)
 
     def create_wheel(self, wheel_directory, tmp_build_dir, cfg, norm_name,
                      norm_version):