| | import ast |
| | import json |
| | import textwrap |
| | from pathlib import Path |
| |
|
| |
|
| | def iter_namespace_pkgs(namespace): |
| | parts = namespace.split(".") |
| | for i in range(len(parts)): |
| | yield ".".join(parts[: i + 1]) |
| |
|
| |
|
| | def build_namespace_package(tmpdir, name, version="1.0", impl="pkg_resources"): |
| | src_dir = tmpdir / name |
| | src_dir.mkdir() |
| | setup_py = src_dir / 'setup.py' |
| | namespace, _, rest = name.rpartition('.') |
| | namespaces = list(iter_namespace_pkgs(namespace)) |
| | setup_args = { |
| | "name": name, |
| | "version": version, |
| | "packages": namespaces, |
| | } |
| |
|
| | if impl == "pkg_resources": |
| | tmpl = '__import__("pkg_resources").declare_namespace(__name__)' |
| | setup_args["namespace_packages"] = namespaces |
| | elif impl == "pkgutil": |
| | tmpl = '__path__ = __import__("pkgutil").extend_path(__path__, __name__)' |
| | else: |
| | raise ValueError(f"Cannot recognise {impl=} when creating namespaces") |
| |
|
| | args = json.dumps(setup_args, indent=4) |
| | assert ast.literal_eval(args) |
| |
|
| | script = textwrap.dedent( |
| | """\ |
| | import setuptools |
| | args = {args} |
| | setuptools.setup(**args) |
| | """ |
| | ).format(args=args) |
| | setup_py.write_text(script, encoding='utf-8') |
| |
|
| | ns_pkg_dir = Path(src_dir, namespace.replace(".", "/")) |
| | ns_pkg_dir.mkdir(parents=True) |
| |
|
| | for ns in namespaces: |
| | pkg_init = src_dir / ns.replace(".", "/") / '__init__.py' |
| | pkg_init.write_text(tmpl, encoding='utf-8') |
| |
|
| | pkg_mod = ns_pkg_dir / (rest + '.py') |
| | some_functionality = 'name = {rest!r}'.format(**locals()) |
| | pkg_mod.write_text(some_functionality, encoding='utf-8') |
| | return src_dir |
| |
|
| |
|
| | def build_pep420_namespace_package(tmpdir, name): |
| | src_dir = tmpdir / name |
| | src_dir.mkdir() |
| | pyproject = src_dir / "pyproject.toml" |
| | namespace, _, rest = name.rpartition(".") |
| | script = f"""\ |
| | [build-system] |
| | requires = ["setuptools"] |
| | build-backend = "setuptools.build_meta" |
| | |
| | [project] |
| | name = "{name}" |
| | version = "3.14159" |
| | """ |
| | pyproject.write_text(textwrap.dedent(script), encoding='utf-8') |
| | ns_pkg_dir = Path(src_dir, namespace.replace(".", "/")) |
| | ns_pkg_dir.mkdir(parents=True) |
| | pkg_mod = ns_pkg_dir / (rest + ".py") |
| | some_functionality = f"name = {rest!r}" |
| | pkg_mod.write_text(some_functionality, encoding='utf-8') |
| | return src_dir |
| |
|
| |
|
| | def make_site_dir(target): |
| | """ |
| | Add a sitecustomize.py module in target to cause |
| | target to be added to site dirs such that .pth files |
| | are processed there. |
| | """ |
| | sc = target / 'sitecustomize.py' |
| | target_str = str(target) |
| | tmpl = '__import__("site").addsitedir({target_str!r})' |
| | sc.write_text(tmpl.format(**locals()), encoding='utf-8') |
| |
|