e6c1981103
- minimize code in try blocks - remove "except Exception" (global error handling to be added later)
85 lines
2.4 KiB
Python
85 lines
2.4 KiB
Python
import sys
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import importlib
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try:
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import pytoml
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from packaging.requirements import Requirement, InvalidRequirement
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from packaging.utils import canonicalize_name, canonicalize_version
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except ImportError:
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# already echoed by the %pyproject_buildrequires macro
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sys.exit(0)
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try:
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f = open("pyproject.toml") as f
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except FileNotFoundError:
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pyproject_data = {}
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else:
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with f:
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pyproject_data = pytoml.load(f)
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try:
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backend_name = pyproject_data["build-system"]["build-backend"]
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except KeyError:
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try:
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import setuptools.build_meta
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except ImportError:
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print("python3dist(setuptools) >= 40.8")
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print("python3dist(wheel)")
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sys.exit(0)
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backend = setuptools.build_meta
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else:
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try:
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backend = importlib.import_module(backend_name)
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except ImportError:
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backend = None
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requirements = set()
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rpm_requirements = set()
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def add_requirement(requirement):
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try:
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requirements.add(Requirement(requirement))
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except InvalidRequirement as e:
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print(
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f"WARNING: Skipping invalid requirement: {requirement}\n {e}",
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file=sys.stderr,
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)
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if "requires" in pyproject_data.get("build-system", {}):
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for requirement in pyproject_data["build-system"]["requires"]:
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add_requirement(requirement)
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get_requires = getattr(backend, "get_requires_for_build_wheel", None)
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if get_requires:
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for requirement in get_requires():
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add_requirement(requirement)
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for requirement in requirements:
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name = canonicalize_name(requirement.name)
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if requirement.marker is not None and not requirement.marker.evaluate():
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continue
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together = []
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for specifier in requirement.specifier:
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version = canonicalize_version(specifier.version)
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if specifier.operator == "!=":
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together.append(
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f"(python3dist({name}) < {version} or python3dist({name}) >= {version}.0)"
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)
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else:
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together.append(f"python3dist({name}) {specifier.operator} {version}")
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if len(together) == 0:
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rpm_requirements.add(f"python3dist({name})")
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if len(together) == 1:
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rpm_requirements.add(together[0])
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elif len(together) > 1:
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rpm_requirements.add(f"({' and '.join(together)})")
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print(*sorted(rpm_requirements), sep="\n")
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