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.
134 lines
4.2 KiB
Python
134 lines
4.2 KiB
Python
"""
|
|
Tools for converting old- to new-style metadata.
|
|
"""
|
|
|
|
import os.path
|
|
import textwrap
|
|
|
|
import pkg_resources
|
|
|
|
from .pkginfo import read_pkg_info
|
|
|
|
|
|
def requires_to_requires_dist(requirement):
|
|
"""Return the version specifier for a requirement in PEP 345/566 fashion."""
|
|
if getattr(requirement, 'url', None):
|
|
return " @ " + requirement.url
|
|
|
|
requires_dist = []
|
|
for op, ver in requirement.specs:
|
|
requires_dist.append(op + ver)
|
|
if not requires_dist:
|
|
return ''
|
|
return " (%s)" % ','.join(sorted(requires_dist))
|
|
|
|
|
|
def convert_requirements(requirements):
|
|
"""Yield Requires-Dist: strings for parsed requirements strings."""
|
|
for req in requirements:
|
|
parsed_requirement = pkg_resources.Requirement.parse(req)
|
|
spec = requires_to_requires_dist(parsed_requirement)
|
|
extras = ",".join(sorted(parsed_requirement.extras))
|
|
if extras:
|
|
extras = "[%s]" % extras
|
|
yield (parsed_requirement.project_name + extras + spec)
|
|
|
|
|
|
def generate_requirements(extras_require):
|
|
"""
|
|
Convert requirements from a setup()-style dictionary to ('Requires-Dist', 'requirement')
|
|
and ('Provides-Extra', 'extra') tuples.
|
|
|
|
extras_require is a dictionary of {extra: [requirements]} as passed to setup(),
|
|
using the empty extra {'': [requirements]} to hold install_requires.
|
|
"""
|
|
for extra, depends in extras_require.items():
|
|
condition = ''
|
|
extra = extra or ''
|
|
if ':' in extra: # setuptools extra:condition syntax
|
|
extra, condition = extra.split(':', 1)
|
|
|
|
extra = pkg_resources.safe_extra(extra)
|
|
if extra:
|
|
yield 'Provides-Extra', extra
|
|
if condition:
|
|
condition = "(" + condition + ") and "
|
|
condition += "extra == '%s'" % extra
|
|
|
|
if condition:
|
|
condition = ' ; ' + condition
|
|
|
|
for new_req in convert_requirements(depends):
|
|
yield 'Requires-Dist', new_req + condition
|
|
|
|
|
|
def pkginfo_to_metadata(egg_info_path, pkginfo_path):
|
|
"""
|
|
Convert .egg-info directory with PKG-INFO to the Metadata 2.1 format
|
|
"""
|
|
pkg_info = read_pkg_info(pkginfo_path)
|
|
pkg_info.replace_header('Metadata-Version', '2.1')
|
|
# Those will be regenerated from `requires.txt`.
|
|
del pkg_info['Provides-Extra']
|
|
del pkg_info['Requires-Dist']
|
|
requires_path = os.path.join(egg_info_path, 'requires.txt')
|
|
if os.path.exists(requires_path):
|
|
with open(requires_path) as requires_file:
|
|
requires = requires_file.read()
|
|
|
|
parsed_requirements = sorted(pkg_resources.split_sections(requires),
|
|
key=lambda x: x[0] or '')
|
|
for extra, reqs in parsed_requirements:
|
|
for key, value in generate_requirements({extra: reqs}):
|
|
if (key, value) not in pkg_info.items():
|
|
pkg_info[key] = value
|
|
|
|
description = pkg_info['Description']
|
|
if description:
|
|
pkg_info.set_payload(dedent_description(pkg_info))
|
|
del pkg_info['Description']
|
|
|
|
return pkg_info
|
|
|
|
|
|
def pkginfo_unicode(pkg_info, field):
|
|
"""Hack to coax Unicode out of an email Message() - Python 3.3+"""
|
|
text = pkg_info[field]
|
|
field = field.lower()
|
|
if not isinstance(text, str):
|
|
for item in pkg_info.raw_items():
|
|
if item[0].lower() == field:
|
|
text = item[1].encode('ascii', 'surrogateescape') \
|
|
.decode('utf-8')
|
|
break
|
|
|
|
return text
|
|
|
|
|
|
def dedent_description(pkg_info):
|
|
"""
|
|
Dedent and convert pkg_info['Description'] to Unicode.
|
|
"""
|
|
description = pkg_info['Description']
|
|
|
|
# Python 3 Unicode handling, sorta.
|
|
surrogates = False
|
|
if not isinstance(description, str):
|
|
surrogates = True
|
|
description = pkginfo_unicode(pkg_info, 'Description')
|
|
|
|
description_lines = description.splitlines()
|
|
description_dedent = '\n'.join(
|
|
# if the first line of long_description is blank,
|
|
# the first line here will be indented.
|
|
(description_lines[0].lstrip(),
|
|
textwrap.dedent('\n'.join(description_lines[1:])),
|
|
'\n'))
|
|
|
|
if surrogates:
|
|
description_dedent = description_dedent \
|
|
.encode("utf8") \
|
|
.decode("ascii", "surrogateescape")
|
|
|
|
return description_dedent
|