def _from_distribution(
cls, dist
): # type: (Union[pkginfo.BDist, pkginfo.SDist, pkginfo.Wheel]) -> PackageInfo
"""
Helper method to parse package information from a `pkginfo.Distribution` instance.
:param dist: The distribution instance to parse information from.
"""
requirements = None
if dist.requires_dist:
requirements = list(dist.requires_dist)
else:
requires = Path(dist.filename) / "requires.txt"
if requires.exists():
with requires.open(encoding="utf-8") as f:
requirements = parse_requires(f.read())
info = cls(
name=dist.name,
version=dist.version,
summary=dist.summary,
platform=dist.supported_platforms,
requires_dist=requirements,
requires_python=dist.requires_python,
)
info._source_type = "file"
info._source_url = Path(dist.filename).resolve().as_posix()
return info
def test_parse_requires() -> None:
requires = """\
jsonschema>=2.6.0.0,<3.0.0.0
lockfile>=0.12.0.0,<0.13.0.0
pip-tools>=1.11.0.0,<2.0.0.0
pkginfo>=1.4.0.0,<2.0.0.0
pyrsistent>=0.14.2.0,<0.15.0.0
toml>=0.9.0.0,<0.10.0.0
cleo>=0.6.0.0,<0.7.0.0
cachy>=0.1.1.0,<0.2.0.0
cachecontrol>=0.12.4.0,<0.13.0.0
requests>=2.18.0.0,<3.0.0.0
msgpack-python>=0.5.0.0,<0.6.0.0
pyparsing>=2.2.0.0,<3.0.0.0
requests-toolbelt>=0.8.0.0,<0.9.0.0
[:(python_version >= "2.7.0.0" and python_version < "2.8.0.0") or (python_version >= "3.4.0.0" and python_version < "3.5.0.0")]
typing>=3.6.0.0,<4.0.0.0
[:python_version >= "2.7.0.0" and python_version < "2.8.0.0"]
virtualenv>=15.2.0.0,<16.0.0.0
pathlib2>=2.3.0.0,<3.0.0.0
[:python_version >= "3.4.0.0" and python_version < "3.6.0.0"]
zipfile36>=0.1.0.0,<0.2.0.0
[dev]
isort@ git+git://github.com/timothycrosley/isort.git@e63ae06ec7d70b06df9e528357650281a3d3ec22#egg=isort
"""
result = parse_requires(requires)
expected = [
"jsonschema>=2.6.0.0,<3.0.0.0",
"lockfile>=0.12.0.0,<0.13.0.0",
"pip-tools>=1.11.0.0,<2.0.0.0",
"pkginfo>=1.4.0.0,<2.0.0.0",
"pyrsistent>=0.14.2.0,<0.15.0.0",
"toml>=0.9.0.0,<0.10.0.0",
"cleo>=0.6.0.0,<0.7.0.0",
"cachy>=0.1.1.0,<0.2.0.0",
"cachecontrol>=0.12.4.0,<0.13.0.0",
"requests>=2.18.0.0,<3.0.0.0",
"msgpack-python>=0.5.0.0,<0.6.0.0",
"pyparsing>=2.2.0.0,<3.0.0.0",
"requests-toolbelt>=0.8.0.0,<0.9.0.0",
'typing>=3.6.0.0,<4.0.0.0 ; (python_version >= "2.7.0.0" and python_version <'
' "2.8.0.0") or (python_version >= "3.4.0.0" and python_version < "3.5.0.0")',
'virtualenv>=15.2.0.0,<16.0.0.0 ; python_version >= "2.7.0.0" and'
' python_version < "2.8.0.0"',
'pathlib2>=2.3.0.0,<3.0.0.0 ; python_version >= "2.7.0.0" and python_version <'
' "2.8.0.0"',
'zipfile36>=0.1.0.0,<0.2.0.0 ; python_version >= "3.4.0.0" and python_version <'
' "3.6.0.0"',
"isort@"
" git+git://github.com/timothycrosley/isort.git@e63ae06ec7d70b06df9e528357650281a3d3ec22#egg=isort"
' ; extra == "dev"',
]
assert result == expected
def from_setup_files(cls, path): # type: (Path) -> PackageInfo
"""
Mechanism to parse package information from a `setup.[py|cfg]` file. This uses the implementation
at `poetry.utils.setup_reader.SetupReader` in order to parse the file. This is not reliable for
complex setup files and should only attempted as a fallback.
:param path: Path to `setup.py` file
"""
if not cls.has_setup_files(path):
raise PackageInfoError(
path, "No setup files (setup.py, setup.cfg) was found."
)
try:
result = SetupReader.read_from_directory(path)
except Exception as e:
raise PackageInfoError(path, e)
python_requires = result["python_requires"]
if python_requires is None:
python_requires = "*"
requires = ""
for dep in result["install_requires"]:
requires += dep + "\n"
if result["extras_require"]:
requires += "\n"
for extra_name, deps in result["extras_require"].items():
requires += "[{}]\n".format(extra_name)
for dep in deps:
requires += dep + "\n"
requires += "\n"
requirements = parse_requires(requires)
info = cls(
name=result.get("name"),
version=result.get("version"),
summary=result.get("description", ""),
requires_dist=requirements or None,
requires_python=python_requires,
)
if not (info.name and info.version) and not info.requires_dist:
# there is nothing useful here
raise PackageInfoError(
path,
"No core metadata (name, version, requires-dist) could be retrieved.",
)
return info
