You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
132 lines
4.1 KiB
Python
132 lines
4.1 KiB
Python
"""Helper code used to generate ``requires.txt`` files in the egg-info directory.
|
|
|
|
The ``requires.txt`` file has an specific format:
|
|
- Environment markers need to be part of the section headers and
|
|
should not be part of the requirement spec itself.
|
|
|
|
See https://setuptools.pypa.io/en/latest/deprecated/python_eggs.html#requires-txt
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import io
|
|
from collections import defaultdict
|
|
from collections.abc import Mapping
|
|
from itertools import filterfalse
|
|
from typing import TypeVar
|
|
|
|
from jaraco.text import yield_lines
|
|
from packaging.requirements import Requirement
|
|
|
|
from .. import _reqs
|
|
from .._reqs import _StrOrIter
|
|
|
|
# dict can work as an ordered set
|
|
_T = TypeVar("_T")
|
|
_Ordered = dict[_T, None]
|
|
|
|
|
|
def _prepare(
|
|
install_requires: _StrOrIter, extras_require: Mapping[str, _StrOrIter]
|
|
) -> tuple[list[str], dict[str, list[str]]]:
|
|
"""Given values for ``install_requires`` and ``extras_require``
|
|
create modified versions in a way that can be written in ``requires.txt``
|
|
"""
|
|
extras = _convert_extras_requirements(extras_require)
|
|
return _move_install_requirements_markers(install_requires, extras)
|
|
|
|
|
|
def _convert_extras_requirements(
|
|
extras_require: Mapping[str, _StrOrIter],
|
|
) -> defaultdict[str, _Ordered[Requirement]]:
|
|
"""
|
|
Convert requirements in `extras_require` of the form
|
|
`"extra": ["barbazquux; {marker}"]` to
|
|
`"extra:{marker}": ["barbazquux"]`.
|
|
"""
|
|
output = defaultdict[str, _Ordered[Requirement]](dict)
|
|
for section, v in extras_require.items():
|
|
# Do not strip empty sections.
|
|
output[section]
|
|
for r in _reqs.parse(v):
|
|
output[section + _suffix_for(r)].setdefault(r)
|
|
|
|
return output
|
|
|
|
|
|
def _move_install_requirements_markers(
|
|
install_requires: _StrOrIter, extras_require: Mapping[str, _Ordered[Requirement]]
|
|
) -> tuple[list[str], dict[str, list[str]]]:
|
|
"""
|
|
The ``requires.txt`` file has an specific format:
|
|
- Environment markers need to be part of the section headers and
|
|
should not be part of the requirement spec itself.
|
|
|
|
Move requirements in ``install_requires`` that are using environment
|
|
markers ``extras_require``.
|
|
"""
|
|
|
|
# divide the install_requires into two sets, simple ones still
|
|
# handled by install_requires and more complex ones handled by extras_require.
|
|
|
|
inst_reqs = list(_reqs.parse(install_requires))
|
|
simple_reqs = filter(_no_marker, inst_reqs)
|
|
complex_reqs = filterfalse(_no_marker, inst_reqs)
|
|
simple_install_requires = list(map(str, simple_reqs))
|
|
|
|
for r in complex_reqs:
|
|
extras_require[':' + str(r.marker)].setdefault(r)
|
|
|
|
expanded_extras = dict(
|
|
# list(dict.fromkeys(...)) ensures a list of unique strings
|
|
(k, list(dict.fromkeys(str(r) for r in map(_clean_req, v))))
|
|
for k, v in extras_require.items()
|
|
)
|
|
|
|
return simple_install_requires, expanded_extras
|
|
|
|
|
|
def _suffix_for(req):
|
|
"""Return the 'extras_require' suffix for a given requirement."""
|
|
return ':' + str(req.marker) if req.marker else ''
|
|
|
|
|
|
def _clean_req(req):
|
|
"""Given a Requirement, remove environment markers and return it"""
|
|
r = Requirement(str(req)) # create a copy before modifying
|
|
r.marker = None
|
|
return r
|
|
|
|
|
|
def _no_marker(req):
|
|
return not req.marker
|
|
|
|
|
|
def _write_requirements(stream, reqs):
|
|
lines = yield_lines(reqs or ())
|
|
|
|
def append_cr(line):
|
|
return line + '\n'
|
|
|
|
lines = map(append_cr, lines)
|
|
stream.writelines(lines)
|
|
|
|
|
|
def write_requirements(cmd, basename, filename):
|
|
dist = cmd.distribution
|
|
data = io.StringIO()
|
|
install_requires, extras_require = _prepare(
|
|
dist.install_requires or (), dist.extras_require or {}
|
|
)
|
|
_write_requirements(data, install_requires)
|
|
for extra in sorted(extras_require):
|
|
data.write('\n[{extra}]\n'.format(**vars()))
|
|
_write_requirements(data, extras_require[extra])
|
|
cmd.write_or_delete_file("requirements", filename, data.getvalue())
|
|
|
|
|
|
def write_setup_requirements(cmd, basename, filename):
|
|
data = io.StringIO()
|
|
_write_requirements(data, cmd.distribution.setup_requires)
|
|
cmd.write_or_delete_file("setup-requirements", filename, data.getvalue())
|