Merge pull request #191 from PyO3/bootstrap-on-alpine

Add setup.py for bootstrapping on alpine

.gitignore

@@ -9,3 +9,5 @@ __pycache__/
 *.egg
 dist/
 *.whl
+build
+dist

pyproject.toml

@@ -1,6 +1,7 @@
+# Workaround to bootstrap pyo3-pack on non-manylinux platforms
 [build-system]
-requires = ["pyo3-pack"]
-build-backend = "pyo3_pack"
+requires = ["setuptools~=41.2.0", "wheel~=0.33.6"]
+build-backend = "setuptools.build_meta"
 
 [tool.pyo3-pack]
 bindings = "bin"

setup.py

@@ -0,0 +1,76 @@
+# pyo3 is self bootstraping, however on platforms like alpine linux that aren't
+# manylinux, pip will try installing pyo3-pack from the source distribution.
+# That source distribution obviously can't depend on pyo3-pack, so we're using
+# the always available setuptools.
+#
+# Note that this is really only a workaround for bootstrapping and not suited
+# for general purpose packaging, i.e. only building a wheel (as in
+# `python setup.py bdist_wheel`) and installing (as in
+# `pip install <source dir>` are supported. For creating a source distribution
+# for pyo3-pack itself use `pyo3-pack sdist`.
+
+import os
+import subprocess
+import sys
+
+import setuptools
+from setuptools import setup
+from setuptools.command.install import install
+
+
+class PostInstallCommand(install):
+    """Post-installation for installation mode."""
+
+    def run(self):
+        source_dir = os.path.dirname(os.path.abspath(__file__))
+        executable_name = (
+            "pyo3-pack.exe" if sys.platform.startswith("win") else "pyo3-pack"
+        )
+
+        # Shortcut for development
+        existing_binary = os.path.join(source_dir, "target", "debug", executable_name)
+        if os.path.isfile(existing_binary):
+            source = existing_binary
+        else:
+            subprocess.check_call(["cargo", "rustc", "--bin", "pyo3-pack"])
+            source = os.path.join(source_dir, "target", "debug", executable_name)
+        # run this after trying to build with cargo (as otherwise this leaves
+        # venv in a bad state: https://github.com/benfred/py-spy/issues/69)
+        install.run(self)
+
+        target = os.path.join(self.install_scripts, executable_name)
+        os.makedirs(self.install_scripts, exist_ok=True)
+        self.copy_file(source, target)
+        self.copy_tree(
+            os.path.join(source_dir, "pyo3_pack"),
+            os.path.join(self.root or self.install_lib, "pyo3_pack"),
+        )
+
+
+with open("Readme.md") as fp:
+    long_description = fp.read()
+
+setup(
+    name="pyo3-pack",
+    author="konstin",
+    author_email="konstin@mailbox.org",
+    url="https://github.com/pyo3-pack/pyo3-pack",
+    description="Build and publish crates with pyo3, rust-cpython and cffi bindings as well as rust binaries as "
+    "python packages",
+    long_description=long_description,
+    long_description_content_type="text/markdown",
+    version="0.7.0",
+    license="MIT OR Apache-2.0",
+    cmdclass={"install": PostInstallCommand},
+    classifiers=[
+        "Software Development :: Build Tools",
+        "Programming Language :: Rust",
+        "Programming Language :: Python :: Implementation :: CPython",
+        "Programming Language :: Python :: Implementation :: PyPy",
+    ],
+    # Force the wheel to be platform specific
+    # https://stackoverflow.com/a/53463910/3549270
+    ext_modules=[setuptools.Extension(name="dummy", sources=[])],
+    install_requires=["toml~=0.10.0"],
+    zip_safe=False,
+)