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import posixpath
import re
import py
from pkg_resources import parse_version, Requirement
from .types import CompareMixin
from .validation import normalize_name
ALLOWED_ARCHIVE_EXTS = set(
".dmg .deb .msi .rpm .exe .egg .whl .tar.gz "
".tar.bz2 .tar .tgz .zip .doc.zip".split())
_releasefile_suffix_rx = re.compile(r"(\.zip|\.tar\.gz|\.tgz|\.tar\.bz2|"
"\.doc\.zip|"
"\.macosx-\d+.*|"
"\.linux-.*|"
"\.[^\.]*\.rpm|"
"\.win-amd68-py[23]\.\d\..*|"
"\.win32-py[23]\.\d\..*|"
"\.win.*\..*|"
"-(?:py|cp|ip|pp|jy)[23][\d\.]*.*\..*|"
")$", re.IGNORECASE)
# see also PEP425 for supported "python tags"
_pyversion_type_rex = re.compile(
r"(?:py|cp|ip|pp|jy)([\d\.py]+).*\.(exe|egg|msi|whl)", re.IGNORECASE)
_ext2type = dict(exe="bdist_wininst", egg="bdist_egg", msi="bdist_msi",
whl="bdist_wheel")
_wheel_file_re = re.compile(
r"""^(?P<namever>(?P<name>.+?)-(?P<ver>.*?))
((-(?P<build>\d.*?))?-(?P<pyver>.+?)-(?P<abi>.+?)-(?P<plat>.+?)
\.whl|\.dist-info)$""",
re.VERBOSE)
_pep404_nameversion_re = re.compile(
r"^(?P<name>[^.]+?)-(?P<ver>"
r"(?:[1-9]\d*!)?" # [N!]
r"(?:0|[1-9]\d*)" # N
r"(?:\.(?:0|[1-9]\d*))*" # (.N)*
r"(?:(?:a|b|rc)(?:0|[1-9]\d*))?" # [{a|b|rc}N]
r"(?:\.post(?:0|[1-9]\d*))?" # [.postN]
r"(?:\.dev(?:0|[1-9]\d*))?" # [.devN]
r"(?:\+(?:[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?" # local version
r")$")
_legacy_nameversion_re = re.compile(
r"^(?P<name>[^.]+?)-(?P<ver>"
r"(?:[1-9]\d*!)?" # [N!]
r"(?:0|[1-9]\d*)" # N
r"(?:\.(?:0|[1-9]\d*))*" # (.N)*
r"(?:(?:a|b|rc|alpha|beta)(?:0|[1-9]\d*))?" # [{a|b|rc}N]
r"(?:\.post(?:0|[1-9]\d*))?" # [.postN]
r"(?:\.dev(?:0|[1-9]\d*))?" # [.devN]
r"(?:\-(?:[a-z0-9]+(?:[-_\.][a-z0-9]+)*))?" # local version
r")$")
def get_pyversion_filetype(basename):
_,_,suffix = splitbasename(basename)
if suffix in (".zip", ".tar.gz", ".tgz", "tar.bz2"):
return ("source", "sdist")
m = _pyversion_type_rex.search(suffix)
if not m:
return ("any", "bdist_dumb")
pyversion, ext = m.groups()
if pyversion == "2.py3": # "universal" wheel with no C
pyversion = "2.7" # arbitrary but pypi/devpi makes no special use
# of "pyversion" anyway?!
elif "." not in pyversion:
pyversion = ".".join(pyversion)
return (pyversion, _ext2type[ext])
def splitbasename(path, checkarch=True):
nameversion, ext = splitext_archive(path)
if ext == '.whl':
m = _wheel_file_re.match(path)
if m:
info = m.groupdict()
return (
info['name'],
info['ver'],
'-%s-%s-%s.whl' % (info['pyver'], info['abi'], info['plat']))
if checkarch and ext.lower() not in ALLOWED_ARCHIVE_EXTS:
raise ValueError("invalid archive type %r in: %s" % (ext, path))
m = _releasefile_suffix_rx.search(path)
if m:
ext = m.group(1)
if len(ext):
nameversion = path[:-len(ext)]
else:
nameversion = path
if '-' not in nameversion: # no version
return nameversion, "", ext
m = _pep404_nameversion_re.match(nameversion)
if m:
(projectname, version) = m.groups()
return projectname, version, ext
m = _legacy_nameversion_re.match(nameversion)
if m:
(projectname, version) = m.groups()
return projectname, version, ext
(projectname, version) = nameversion.rsplit('-', 1)
return projectname, version, ext
DOCZIPSUFFIX = ".doc.zip"
def splitext_archive(basename):
basename = getattr(basename, "basename", basename)
if basename.lower().endswith(DOCZIPSUFFIX):
ext = basename[-len(DOCZIPSUFFIX):]
base = basename[:-len(DOCZIPSUFFIX)]
else:
base, ext = posixpath.splitext(basename)
if base.lower().endswith('.tar'):
ext = base[-4:] + ext
base = base[:-4]
return base, ext
class Version(CompareMixin):
def __init__(self, versionstring):
self.string = versionstring
self.cmpval = parse_version(versionstring)
def __str__(self):
return self.string
def is_prerelease(self):
if hasattr(self.cmpval, 'is_prerelease'):
return self.cmpval.is_prerelease
# backward compatibility
for x in self.cmpval:
if x.startswith('*') and x < '*final':
return True
return False
class BasenameMeta(CompareMixin):
def __init__(self, obj, sameproject=False):
self.obj = obj
basename = getattr(obj, "basename", obj)
if not isinstance(basename, py.builtin._basestring):
raise ValueError("need object with basename attribute")
assert "/" not in basename, (obj, basename)
name, version, ext = splitbasename(basename, checkarch=False)
self.name = name
self.version = version
self.ext = ext
if sameproject:
self.cmpval = (parse_version(version), normalize_name(name), ext)
else:
self.cmpval = (normalize_name(name), parse_version(version), ext)
def __repr__(self):
return "<BasenameMeta name=%r version=%r>" %(self.name, self.version)
def sorted_sameproject_links(links):
s = sorted((BasenameMeta(link, sameproject=True)
for link in links), reverse=True)
return [x.obj for x in s]
def get_latest_version(seq, stable=False):
if not seq:
return
versions = map(Version, seq)
if stable:
versions = [x for x in versions if not x.is_prerelease()]
if not versions:
return
return max(versions).string
def get_sorted_versions(versions, reverse=True, stable=False):
versions = sorted(map(Version, versions), reverse=reverse)
if stable:
versions = [x for x in versions if not x.is_prerelease()]
return [x.string for x in versions]
def is_archive_of_project(basename, targetname):
nameversion, ext = splitext_archive(basename)
# we don't check for strict equality because pypi currently
# shows "x-docs-1.0.tar.gz" for targetname "x" (however it was uploaded)
if not normalize_name(nameversion).startswith(targetname):
return False
if ext.lower() not in ALLOWED_ARCHIVE_EXTS:
return False
return True
def parse_requirement(s):
return Requirement.parse(s)
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