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Commit c6d8c587 authored by Jason R. Coombs's avatar Jason R. Coombs
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Merge pull request #164. Fixes #122.

parents 6bdbe895 bca120fe
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CHANGES.txt
View file @ c6d8c587
......@@ -3,6 +3,14 @@ CHANGES
=======
----
19.3
----
* Pull Request #164: Replace dual PEP 345 _markerlib implementation
and PEP 426 implementation of environment marker support from
packaging 15.4 and PEP-508. Fixes Issue #122.
----
19.2
----
......
Makefile
View file @ c6d8c587
......@@ -3,5 +3,8 @@ empty:
update-vendored:
rm -rf pkg_resources/_vendor/packaging
rm -rf pkg_resources/_vendor/pyparsing
pip install -r pkg_resources/_vendor/vendored.txt -t pkg_resources/_vendor/
sed -i -e 's/ \(pyparsing\)/ pkg_resources._vendor.\1/' \
pkg_resources/_vendor/packaging/*.py
rm -rf pkg_resources/_vendor/*.{egg,dist}-info
_markerlib/__init__.py deleted 100644 → 0
View file @ 6bdbe895
try:
import ast
from _markerlib.markers import default_environment, compile, interpret
except ImportError:
if 'ast' in globals():
raise
def default_environment():
return {}
def compile(marker):
def marker_fn(environment=None, override=None):
# 'empty markers are True' heuristic won't install extra deps.
return not marker.strip()
marker_fn.__doc__ = marker
return marker_fn
def interpret(marker, environment=None, override=None):
return compile(marker)()
_markerlib/markers.py deleted 100644 → 0
View file @ 6bdbe895
# -*- coding: utf-8 -*-
"""Interpret PEP 345 environment markers.
EXPR [in|==|!=|not in] EXPR [or|and] ...
where EXPR belongs to any of those:
python_version = '%s.%s' % (sys.version_info[0], sys.version_info[1])
python_full_version = sys.version.split()[0]
os.name = os.name
sys.platform = sys.platform
platform.version = platform.version()
platform.machine = platform.machine()
platform.python_implementation = platform.python_implementation()
a free string, like '2.6', or 'win32'
"""
__all__ = ['default_environment', 'compile', 'interpret']
import ast
import os
import platform
import sys
import weakref
_builtin_compile = compile
try:
from platform import python_implementation
except ImportError:
if os.name == "java":
# Jython 2.5 has ast module, but not platform.python_implementation() function.
def python_implementation():
return "Jython"
else:
raise
# restricted set of variables
_VARS = {'sys.platform': sys.platform,
'python_version': '%s.%s' % sys.version_info[:2],
# FIXME parsing sys.platform is not reliable, but there is no other
# way to get e.g. 2.7.2+, and the PEP is defined with sys.version
'python_full_version': sys.version.split(' ', 1)[0],
'os.name': os.name,
'platform.version': platform.version(),
'platform.machine': platform.machine(),
'platform.python_implementation': python_implementation(),
'extra': None # wheel extension
}
for var in list(_VARS.keys()):
if '.' in var:
_VARS[var.replace('.', '_')] = _VARS[var]
def default_environment():
"""Return copy of default PEP 385 globals dictionary."""
return dict(_VARS)
class ASTWhitelist(ast.NodeTransformer):
def __init__(self, statement):
self.statement = statement # for error messages
ALLOWED = (ast.Compare, ast.BoolOp, ast.Attribute, ast.Name, ast.Load, ast.Str)
# Bool operations
ALLOWED += (ast.And, ast.Or)
# Comparison operations
ALLOWED += (ast.Eq, ast.Gt, ast.GtE, ast.In, ast.Is, ast.IsNot, ast.Lt, ast.LtE, ast.NotEq, ast.NotIn)
def visit(self, node):
"""Ensure statement only contains allowed nodes."""
if not isinstance(node, self.ALLOWED):
raise SyntaxError('Not allowed in environment markers.\n%s\n%s' %
(self.statement,
(' ' * node.col_offset) + '^'))
return ast.NodeTransformer.visit(self, node)
def visit_Attribute(self, node):
"""Flatten one level of attribute access."""
new_node = ast.Name("%s.%s" % (node.value.id, node.attr), node.ctx)
return ast.copy_location(new_node, node)
def parse_marker(marker):
tree = ast.parse(marker, mode='eval')
new_tree = ASTWhitelist(marker).generic_visit(tree)
return new_tree
def compile_marker(parsed_marker):
return _builtin_compile(parsed_marker, '<environment marker>', 'eval',
dont_inherit=True)
_cache = weakref.WeakValueDictionary()
def compile(marker):
"""Return compiled marker as a function accepting an environment dict."""
try:
return _cache[marker]
except KeyError:
pass
if not marker.strip():
def marker_fn(environment=None, override=None):
""""""
return True
else:
compiled_marker = compile_marker(parse_marker(marker))
def marker_fn(environment=None, override=None):
"""override updates environment"""
if override is None:
override = {}
if environment is None:
environment = default_environment()
environment.update(override)
return eval(compiled_marker, environment)
marker_fn.__doc__ = marker
_cache[marker] = marker_fn
return _cache[marker]
def interpret(marker, environment=None):
return compile(marker)(environment)
pkg_resources/__init__.py
View file @ c6d8c587
......@@ -90,6 +90,8 @@ except ImportError:
try:
import pkg_resources._vendor.packaging.version
import pkg_resources._vendor.packaging.specifiers
import pkg_resources._vendor.packaging.requirements
import pkg_resources._vendor.packaging.markers
packaging = pkg_resources._vendor.packaging
except ImportError:
# fallback to naturally-installed version; allows system packagers to
......@@ -1420,13 +1422,15 @@ class MarkerEvaluation(object):
@classmethod
def is_invalid_marker(cls, text):
"""
Validate text as a PEP 426 environment marker; return an exception
Validate text as a PEP 508 environment marker; return an exception
if invalid or False otherwise.
"""
try:
cls.evaluate_marker(text)
except SyntaxError as e:
return cls.normalize_exception(e)
except packaging.markers.InvalidMarker as e:
e.filename = None
e.lineno = None
return e
return False
@staticmethod
......@@ -1518,48 +1522,14 @@ class MarkerEvaluation(object):
@classmethod
def evaluate_marker(cls, text, extra=None):
"""
Evaluate a PEP 426 environment marker on CPython 2.4+.
Evaluate a PEP 508 environment marker on CPython 2.4+.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
Raise InvalidMarker if marker is invalid.
This implementation uses the 'parser' module, which is not implemented
on
Jython and has been superseded by the 'ast' module in Python 2.6 and
later.
This implementation uses the 'pyparsing' module.
"""
return cls.interpret(parser.expr(text).totuple(1)[1])
@staticmethod
def _translate_metadata2(env):
"""
Markerlib implements Metadata 1.2 (PEP 345) environment markers.
Translate the variables to Metadata 2.0 (PEP 426).
"""
return dict(
(key.replace('.', '_'), value)
for key, value in env.items()
)
@classmethod
def _markerlib_evaluate(cls, text):
"""
Evaluate a PEP 426 environment marker using markerlib.
Return a boolean indicating the marker result in this environment.
Raise SyntaxError if marker is invalid.
"""
import _markerlib
env = cls._translate_metadata2(_markerlib.default_environment())
try:
result = _markerlib.interpret(text, env)
except NameError as e:
raise SyntaxError(e.args[0])
return result
if 'parser' not in globals():
# Fall back to less-complete _markerlib implementation if 'parser' module
# is not available.
evaluate_marker = _markerlib_evaluate
marker = packaging.markers.Marker(text)
return marker.evaluate()
@classmethod
def interpret(cls, nodelist):
......@@ -2314,18 +2284,6 @@ def yield_lines(strs):
for s in yield_lines(ss):
yield s
# whitespace and comment
LINE_END = re.compile(r"\s*(#.*)?$").match
# line continuation
CONTINUE = re.compile(r"\s*\\\s*(#.*)?$").match
# Distribution or extra
DISTRO = re.compile(r"\s*((\w|[-.])+)").match
# ver. info
VERSION = re.compile(r"\s*(<=?|>=?|===?|!=|~=)\s*((\w|[-.*_!+])+)").match
# comma between items
COMMA = re.compile(r"\s*,").match
OBRACKET = re.compile(r"\s*\[").match
CBRACKET = re.compile(r"\s*\]").match
MODULE = re.compile(r"\w+(\.\w+)*$").match
EGG_NAME = re.compile(
r"""
......@@ -2861,34 +2819,22 @@ class DistInfoDistribution(Distribution):
self.__dep_map = self._compute_dependencies()
return self.__dep_map
def _preparse_requirement(self, requires_dist):
"""Convert 'Foobar (1); baz' to ('Foobar ==1', 'baz')
Split environment marker, add == prefix to version specifiers as
necessary, and remove parenthesis.
"""
parts = requires_dist.split(';', 1) + ['']
distvers = parts[0].strip()
mark = parts[1].strip()
distvers = re.sub(self.EQEQ, r"\1==\2\3", distvers)
distvers = distvers.replace('(', '').replace(')', '')
return (distvers, mark)
def _compute_dependencies(self):
"""Recompute this distribution's dependencies."""
from _markerlib import compile as compile_marker
dm = self.__dep_map = {None: []}
reqs = []
# Including any condition expressions
for req in self._parsed_pkg_info.get_all('Requires-Dist') or []:
distvers, mark = self._preparse_requirement(req)
parsed = next(parse_requirements(distvers))
parsed.marker_fn = compile_marker(mark)
current_req = packaging.requirements.Requirement(req)
specs = _parse_requirement_specs(current_req)
parsed = Requirement(current_req.name, specs, current_req.extras)
parsed._marker = current_req.marker
reqs.append(parsed)
def reqs_for_extra(extra):
for req in reqs:
if req.marker_fn(override={'extra':extra}):
if not req._marker or req._marker.evaluate({'extra': extra}):
yield req
common = frozenset(reqs_for_extra(None))
......@@ -2926,6 +2872,10 @@ class RequirementParseError(ValueError):
return ' '.join(self.args)
def _parse_requirement_specs(req):
return [(spec.operator, spec.version) for spec in req.specifier]
def parse_requirements(strs):
"""Yield ``Requirement`` objects for each specification in `strs`
......@@ -2934,60 +2884,17 @@ def parse_requirements(strs):
# create a steppable iterator, so we can handle \-continuations
lines = iter(yield_lines(strs))
def scan_list(ITEM, TERMINATOR, line, p, groups, item_name):
items = []
while not TERMINATOR(line, p):
if CONTINUE(line, p):
try:
line = next(lines)
p = 0
except StopIteration:
msg = "\\ must not appear on the last nonblank line"
raise RequirementParseError(msg)
match = ITEM(line, p)
if not match:
msg = "Expected " + item_name + " in"
raise RequirementParseError(msg, line, "at", line[p:])
items.append(match.group(*groups))
p = match.end()
match = COMMA(line, p)
if match:
# skip the comma
p = match.end()
elif not TERMINATOR(line, p):
msg = "Expected ',' or end-of-list in"
raise RequirementParseError(msg, line, "at", line[p:])
match = TERMINATOR(line, p)
# skip the terminator, if any
if match:
p = match.end()
return line, p, items
for line in lines:
match = DISTRO(line)
if not match:
raise RequirementParseError("Missing distribution spec", line)
project_name = match.group(1)
p = match.end()
extras = []
match = OBRACKET(line, p)
if match:
p = match.end()
line, p, extras = scan_list(
DISTRO, CBRACKET, line, p, (1,), "'extra' name"
)
line, p, specs = scan_list(VERSION, LINE_END, line, p, (1, 2),
"version spec")
specs = [(op, val) for op, val in specs]
yield Requirement(project_name, specs, extras)
# Drop comments -- a hash without a space may be in a URL.
if ' #' in line:
line = line[:line.find(' #')]
# If there is a line continuation, drop it, and append the next line.
if line.endswith('\\'):
line = line[:-2].strip()
line += next(lines)
req = packaging.requirements.Requirement(line)
specs = _parse_requirement_specs(req)
yield Requirement(req.name, specs, req.extras)
class Requirement:
......
pkg_resources/_vendor/packaging/__about__.py
View file @ c6d8c587
# Copyright 2014 Donald Stufft
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
__all__ = [
......@@ -22,10 +12,10 @@ __title__ = "packaging"
__summary__ = "Core utilities for Python packages"
__uri__ = "https://github.com/pypa/packaging"
__version__ = "15.3"
__version__ = "15.4.dev0"
__author__ = "Donald Stufft"
__author__ = "Donald Stufft and individual contributors"
__email__ = "donald@stufft.io"
__license__ = "Apache License, Version 2.0"
__copyright__ = "Copyright 2014 %s" % __author__
__license__ = "BSD or Apache License, Version 2.0"
__copyright__ = "Copyright 2014-2015 %s" % __author__
pkg_resources/_vendor/packaging/__init__.py
View file @ c6d8c587
# Copyright 2014 Donald Stufft
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
from .__about__ import (
......
pkg_resources/_vendor/packaging/_compat.py
View file @ c6d8c587
# Copyright 2014 Donald Stufft
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import sys
......
pkg_resources/_vendor/packaging/_structures.py
View file @ c6d8c587
# Copyright 2014 Donald Stufft
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
......
pkg_resources/_vendor/packaging/markers.py 0 → 100644
View file @ c6d8c587
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import operator
import os
import platform
import sys
from pkg_resources._vendor.pyparsing import ParseException, ParseResults, stringStart, stringEnd
from pkg_resources._vendor.pyparsing import ZeroOrMore, Group, Forward, QuotedString
from pkg_resources._vendor.pyparsing import Literal as L # noqa
from ._compat import string_types
from .specifiers import Specifier, InvalidSpecifier
__all__ = [
"InvalidMarker", "UndefinedComparison", "Marker", "default_environment",
]
class InvalidMarker(ValueError):
"""
An invalid marker was found, users should refer to PEP 508.
"""
class UndefinedComparison(ValueError):
"""
An invalid operation was attempted on a value that doesn't support it.
"""
class Node(object):
def __init__(self, value):
self.value = value
def __str__(self):
return str(self.value)
def __repr__(self):
return "<{0}({1!r})>".format(self.__class__.__name__, str(self))
class Variable(Node):
pass
class Value(Node):
pass
VARIABLE = (
L("implementation_version") |
L("python_implementation") |
L("implementation_name") |
L("python_full_version") |
L("platform_release") |
L("platform_version") |
L("platform_machine") |
L("platform_system") |
L("python_version") |
L("sys_platform") |
L("os_name") |
L("extra")
)
VARIABLE.setParseAction(lambda s, l, t: Variable(t[0]))
VERSION_CMP = (
L("===") |
L("==") |
L(">=") |
L("<=") |
L("!=") |
L("~=") |
L(">") |
L("<")
)
MARKER_OP = VERSION_CMP | L("not in") | L("in")
MARKER_VALUE = QuotedString("'") | QuotedString('"')
MARKER_VALUE.setParseAction(lambda s, l, t: Value(t[0]))
BOOLOP = L("and") | L("or")
MARKER_VAR = VARIABLE | MARKER_VALUE
MARKER_ITEM = Group(MARKER_VAR + MARKER_OP + MARKER_VAR)
MARKER_ITEM.setParseAction(lambda s, l, t: tuple(t[0]))
LPAREN = L("(").suppress()
RPAREN = L(")").suppress()
MARKER_EXPR = Forward()
MARKER_ATOM = MARKER_ITEM | Group(LPAREN + MARKER_EXPR + RPAREN)
MARKER_EXPR << MARKER_ATOM + ZeroOrMore(BOOLOP + MARKER_EXPR)
MARKER = stringStart + MARKER_EXPR + stringEnd
def _coerce_parse_result(results):
if isinstance(results, ParseResults):
return [_coerce_parse_result(i) for i in results]
else:
return results
def _format_marker(marker, first=True):
assert isinstance(marker, (list, tuple, string_types))
# Sometimes we have a structure like [[...]] which is a single item list
# where the single item is itself it's own list. In that case we want skip
# the rest of this function so that we don't get extraneous () on the
# outside.
if (isinstance(marker, list) and len(marker) == 1
and isinstance(marker[0], (list, tuple))):
return _format_marker(marker[0])
if isinstance(marker, list):
inner = (_format_marker(m, first=False) for m in marker)
if first:
return " ".join(inner)
else:
return "(" + " ".join(inner) + ")"
elif isinstance(marker, tuple):
return '{0} {1} "{2}"'.format(*marker)
else:
return marker
_operators = {
"in": lambda lhs, rhs: lhs in rhs,
"not in": lambda lhs, rhs: lhs not in rhs,
"<": operator.lt,
"<=": operator.le,
"==": operator.eq,
"!=": operator.ne,
">=": operator.ge,
">": operator.gt,
}
def _eval_op(lhs, op, rhs):
try:
spec = Specifier("".join([op, rhs]))
except InvalidSpecifier:
pass
else:
return spec.contains(lhs)
oper = _operators.get(op)
if oper is None:
raise UndefinedComparison(
"Undefined {0!r} on {1!r} and {2!r}.".format(op, lhs, rhs)
)
return oper(lhs, rhs)
def _evaluate_markers(markers, environment):
groups = [[]]
for marker in markers:
assert isinstance(marker, (list, tuple, string_types))
if isinstance(marker, list):
groups[-1].append(_evaluate_markers(marker, environment))
elif isinstance(marker, tuple):
lhs, op, rhs = marker
if isinstance(lhs, Variable):
value = _eval_op(environment[lhs.value], op, rhs.value)
else:
value = _eval_op(lhs.value, op, environment[rhs.value])
groups[-1].append(value)
else:
assert marker in ["and", "or"]
if marker == "or":
groups.append([])
return any(all(item) for item in groups)
def format_full_version(info):
version = '{0.major}.{0.minor}.{0.micro}'.format(info)
kind = info.releaselevel
if kind != 'final':
version += kind[0] + str(info.serial)
return version
def default_environment():
if hasattr(sys, 'implementation'):
iver = format_full_version(sys.implementation.version)
implementation_name = sys.implementation.name
else:
iver = '0'
implementation_name = ''
return {
"implementation_name": implementation_name,
"implementation_version": iver,
"os_name": os.name,
"platform_machine": platform.machine(),
"platform_release": platform.release(),
"platform_system": platform.system(),
"platform_version": platform.version(),
"python_full_version": platform.python_version(),
"python_implementation": platform.python_implementation(),
"python_version": platform.python_version()[:3],
"sys_platform": sys.platform,
}
class Marker(object):
def __init__(self, marker):
try:
self._markers = _coerce_parse_result(MARKER.parseString(marker))
except ParseException:
self._markers = None
# We do this because we can't do raise ... from None in Python 2.x
if self._markers is None:
raise InvalidMarker("Invalid marker: {0!r}".format(marker))
def __str__(self):
return _format_marker(self._markers)
def __repr__(self):
return "<Marker({0!r})>".format(str(self))
def evaluate(self, environment=None):
"""Evaluate a marker.
Return the boolean from evaluating the given marker against the
environment. environment is an optional argument to override all or
part of the determined environment.
The environment is determined from the current Python process.
"""
current_environment = default_environment()
if environment is not None:
current_environment.update(environment)
return _evaluate_markers(self._markers, current_environment)
pkg_resources/_vendor/packaging/requirements.py 0 → 100644
View file @ c6d8c587
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import string
import re
from pkg_resources._vendor.pyparsing import stringStart, stringEnd, originalTextFor, ParseException
from pkg_resources._vendor.pyparsing import ZeroOrMore, Word, Optional, Regex, Combine
from pkg_resources._vendor.pyparsing import Literal as L # noqa
from six.moves.urllib import parse as urlparse
from .markers import MARKER_EXPR, Marker
from .specifiers import LegacySpecifier, Specifier, SpecifierSet
class InvalidRequirement(ValueError):
"""
An invalid requirement was found, users should refer to PEP 508.
"""
ALPHANUM = Word(string.ascii_letters + string.digits)
LBRACKET = L("[").suppress()
RBRACKET = L("]").suppress()
LPAREN = L("(").suppress()
RPAREN = L(")").suppress()
COMMA = L(",").suppress()
SEMICOLON = L(";").suppress()
AT = L("@").suppress()
PUNCTUATION = Word("-_.")
IDENTIFIER_END = ALPHANUM | (ZeroOrMore(PUNCTUATION) + ALPHANUM)
IDENTIFIER = Combine(ALPHANUM + ZeroOrMore(IDENTIFIER_END))
NAME = IDENTIFIER("name")
EXTRA = IDENTIFIER
URI = Regex(r'[^ ]+')("url")
URL = (AT + URI)
EXTRAS_LIST = EXTRA + ZeroOrMore(COMMA + EXTRA)
EXTRAS = (LBRACKET + Optional(EXTRAS_LIST) + RBRACKET)("extras")
VERSION_PEP440 = Regex(Specifier._regex_str, re.VERBOSE | re.IGNORECASE)
VERSION_LEGACY = Regex(LegacySpecifier._regex_str, re.VERBOSE | re.IGNORECASE)
VERSION_ONE = VERSION_PEP440 | VERSION_LEGACY
VERSION_MANY = Combine(VERSION_ONE + ZeroOrMore(COMMA + VERSION_ONE),
joinString=",")("_raw_spec")
_VERSION_SPEC = Optional(((LPAREN + VERSION_MANY + RPAREN) | VERSION_MANY))
_VERSION_SPEC.setParseAction(lambda s, l, t: t._raw_spec or '')
VERSION_SPEC = originalTextFor(_VERSION_SPEC)("specifier")
VERSION_SPEC.setParseAction(lambda s, l, t: t[1])
MARKER_EXPR = originalTextFor(MARKER_EXPR())("marker")
MARKER_EXPR.setParseAction(
lambda s, l, t: Marker(s[t._original_start:t._original_end])
)
MARKER_SEPERATOR = SEMICOLON
MARKER = MARKER_SEPERATOR + MARKER_EXPR
VERSION_AND_MARKER = VERSION_SPEC + Optional(MARKER)
URL_AND_MARKER = URL + Optional(MARKER)
NAMED_REQUIREMENT = \
NAME + Optional(EXTRAS) + (URL_AND_MARKER | VERSION_AND_MARKER)
REQUIREMENT = stringStart + NAMED_REQUIREMENT + stringEnd
class Requirement(object):
# TODO: Can we test whether something is contained within a requirement?
# If so how do we do that? Do we need to test against the _name_ of
# the thing as well as the version? What about the markers?
# TODO: Can we normalize the name and extra name?
def __init__(self, requirement_string):
try:
req = REQUIREMENT.parseString(requirement_string)
except ParseException:
raise InvalidRequirement(
"Invalid requirement: {0!r}".format(requirement_string))
self.name = req.name
if req.url:
parsed_url = urlparse.urlparse(req.url)
if not (parsed_url.scheme and parsed_url.netloc) or (
not parsed_url.scheme and not parsed_url.netloc):
raise InvalidRequirement("Invalid URL given")
self.url = req.url
else:
self.url = None
self.extras = req.extras.asList() if req.extras else []
self.specifier = SpecifierSet(req.specifier)
self.marker = req.marker if req.marker else None
def __str__(self):
parts = [self.name]
if self.extras:
parts.append("[{0}]".format(",".join(sorted(self.extras))))
if self.specifier:
parts.append(str(self.specifier))
if self.url:
parts.append("@ {0}".format(self.url))
if self.marker:
parts.append("; {0}".format(self.marker))
return "".join(parts)
def __repr__(self):
return "<Requirement({0!r})>".format(str(self))
pkg_resources/_vendor/packaging/specifiers.py
View file @ c6d8c587
# Copyright 2014 Donald Stufft
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import abc
......@@ -223,10 +213,8 @@ class _IndividualSpecifier(BaseSpecifier):
class LegacySpecifier(_IndividualSpecifier):
_regex = re.compile(
_regex_str = (
r"""
^
\s*
(?P<operator>(==|!=|<=|>=|<|>))
\s*
(?P<version>
......@@ -234,12 +222,11 @@ class LegacySpecifier(_IndividualSpecifier):
# is a "legacy" specifier and the version string can be just
# about anything.
)
\s*
$
""",
re.VERBOSE | re.IGNORECASE,
"""
)
_regex = re.compile(r"^\s*" + _regex_str + r"\s*$", re.X | re.I)
_operators = {
"==": "equal",
"!=": "not_equal",
......@@ -284,10 +271,8 @@ def _require_version_compare(fn):
class Specifier(_IndividualSpecifier):
_regex = re.compile(
_regex_str = (
r"""
^
\s*
(?P<operator>(~=|==|!=|<=|>=|<|>|===))
(?P<version>
(?:
......@@ -378,12 +363,11 @@ class Specifier(_IndividualSpecifier):
(?:[-_\.]?dev[-_\.]?[0-9]*)? # dev release
)
)
\s*
$
""",
re.VERBOSE | re.IGNORECASE,
"""
)
_regex = re.compile(r"^\s*" + _regex_str + r"\s*$", re.X | re.I)
_operators = {
"~=": "compatible",
"==": "equal",
......
pkg_resources/_vendor/packaging/version.py
View file @ c6d8c587
# Copyright 2014 Donald Stufft
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import collections
......
pkg_resources/_vendor/pyparsing.py 0 → 100644
View file @ c6d8c587
This source diff could not be displayed because it is too large. You can view the blob instead.
pkg_resources/api_tests.txt
View file @ c6d8c587
......@@ -338,88 +338,58 @@ Environment Markers
>>> import os
>>> print(im("sys_platform"))
Comparison or logical expression expected
Invalid marker: 'sys_platform'
>>> print(im("sys_platform=="))
invalid syntax
Invalid marker: 'sys_platform=='
>>> print(im("sys_platform=='win32'"))
False
>>> print(im("sys=='x'"))
Unknown name 'sys'
Invalid marker: "sys=='x'"
>>> print(im("(extra)"))
Comparison or logical expression expected
Invalid marker: '(extra)'
>>> print(im("(extra"))
invalid syntax
Invalid marker: '(extra'
>>> print(im("os.open('foo')=='y'"))
Language feature not supported in environment markers
Invalid marker: "os.open('foo')=='y'"
>>> print(im("'x'=='y' and os.open('foo')=='y'")) # no short-circuit!
Language feature not supported in environment markers
Invalid marker: "'x'=='y' and os.open('foo')=='y'"
>>> print(im("'x'=='x' or os.open('foo')=='y'")) # no short-circuit!
Language feature not supported in environment markers
Invalid marker: "'x'=='x' or os.open('foo')=='y'"
>>> print(im("'x' < 'y' < 'z'"))
Chained comparison not allowed in environment markers
Invalid marker: "'x' < 'y' < 'z'"
>>> print(im("r'x'=='x'"))
Only plain strings allowed in environment markers
Invalid marker: "r'x'=='x'"
>>> print(im("'''x'''=='x'"))
Only plain strings allowed in environment markers
Invalid marker: "'''x'''=='x'"
>>> print(im('"""x"""=="x"'))
Only plain strings allowed in environment markers
Invalid marker: '"""x"""=="x"'
>>> print(im(r"'x\n'=='x'"))
Only plain strings allowed in environment markers
>>> print(im(r"x\n=='x'"))
Invalid marker: "x\\n=='x'"
>>> print(im("os.open=='y'"))
Language feature not supported in environment markers
Invalid marker: "os.open=='y'"
>>> em('"x"=="x"')
>>> em("'linux' in sys_platform")
True
>>> em('"x"=="y"')
False
>>> em('"x"=="y" and "x"=="x"')
False
>>> em('"x"=="y" or "x"=="x"')
True
>>> em('"x"=="y" and "x"=="q" or "z"=="z"')
True
>>> em('"x"=="y" and ("x"=="q" or "z"=="z")')
False
>>> em('"x"=="y" and "z"=="z" or "x"=="q"')
False
>>> em('"x"=="x" and "z"=="z" or "x"=="q"')
True
>>> em("sys_platform=='win32'") == (sys.platform=='win32')
True
>>> em("'x' in 'yx'")
True
>>> em("'yx' in 'x'")
False
>>> em("python_version >= '2.6'")
True
>>> em("python_version > '2.5'")
True
>>> im("platform_python_implementation=='CPython'")
>>> im("implementation_name=='CPython'")
False
pkg_resources/tests/test_markers.py
View file @ c6d8c587
......@@ -8,9 +8,5 @@ from pkg_resources import evaluate_marker
@mock.patch.dict('pkg_resources.MarkerEvaluation.values',
python_full_version=mock.Mock(return_value='2.7.10'))
def test_lexicographic_ordering():
"""
Although one might like 2.7.10 to be greater than 2.7.3,
the marker spec only supports lexicographic ordering.
"""
assert evaluate_marker("python_full_version > '2.7.3'") is False
def test_ordering():
assert evaluate_marker("python_full_version > '2.7.3'") is True
setuptools/tests/test_dist_info.py
View file @ c6d8c587
......@@ -26,7 +26,6 @@ class TestDistInfo:
assert versioned.version == '2.718' # from filename
assert unversioned.version == '0.3' # from METADATA
@pytest.mark.importorskip('ast')
def test_conditional_dependencies(self):
specs = 'splort==4', 'quux>=1.1'
requires = list(map(pkg_resources.Requirement.parse, specs))
......
setuptools/tests/test_markerlib.py deleted 100644 → 0
View file @ 6bdbe895
import os
import pytest
class TestMarkerlib:
@pytest.mark.importorskip('ast')
def test_markers(self):
from _markerlib import interpret, default_environment, compile
os_name = os.name
assert interpret("")
assert interpret("os.name != 'buuuu'")
assert interpret("os_name != 'buuuu'")
assert interpret("python_version > '1.0'")
assert interpret("python_version < '5.0'")
assert interpret("python_version <= '5.0'")
assert interpret("python_version >= '1.0'")
assert interpret("'%s' in os.name" % os_name)
assert interpret("'%s' in os_name" % os_name)
assert interpret("'buuuu' not in os.name")
assert not interpret("os.name == 'buuuu'")
assert not interpret("os_name == 'buuuu'")
assert not interpret("python_version < '1.0'")
assert not interpret("python_version > '5.0'")
assert not interpret("python_version >= '5.0'")
assert not interpret("python_version <= '1.0'")
assert not interpret("'%s' not in os.name" % os_name)
assert not interpret("'buuuu' in os.name and python_version >= '5.0'")
assert not interpret("'buuuu' in os_name and python_version >= '5.0'")
environment = default_environment()
environment['extra'] = 'test'
assert interpret("extra == 'test'", environment)
assert not interpret("extra == 'doc'", environment)
def raises_nameError():
try:
interpret("python.version == '42'")
except NameError:
pass
else:
raise Exception("Expected NameError")
raises_nameError()
def raises_syntaxError():
try:
interpret("(x for x in (4,))")
except SyntaxError:
pass
else:
raise Exception("Expected SyntaxError")
raises_syntaxError()
statement = "python_version == '5'"
assert compile(statement).__doc__ == statement
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