1 files changed, 0 insertions, 202 deletions
diff --git a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/cache.py b/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/cache.py
deleted file mode 100644
index 5547d73..0000000
--- a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/cache.py
+++ /dev/null
@@ -1,202 +0,0 @@
-"""Cache Management
-"""
-import errno
-import hashlib
-import logging
-import os
-from pip._vendor.packaging.utils import canonicalize_name
-from pip._internal import index
-from pip._internal.compat import expanduser
-from pip._internal.download import path_to_url
-from pip._internal.utils.temp_dir import TempDirectory
-from pip._internal.wheel import InvalidWheelFilename, Wheel
-logger = logging.getLogger(__name__)
-class Cache(object):
-    """An abstract class - provides cache directories for data from links
-        :param cache_dir: The root of the cache.
-        :param format_control: A pip.index.FormatControl object to limit
-            binaries being read from the cache.
-        :param allowed_formats: which formats of files the cache should store.
-            ('binary' and 'source' are the only allowed values)
-    """
-    def __init__(self, cache_dir, format_control, allowed_formats):
-        super(Cache, self).__init__()
-        self.cache_dir = expanduser(cache_dir) if cache_dir else None
-        self.format_control = format_control
-        self.allowed_formats = allowed_formats
-        _valid_formats = {"source", "binary"}
-        assert self.allowed_formats.union(_valid_formats) == _valid_formats
-    def _get_cache_path_parts(self, link):
-        """Get parts of part that must be os.path.joined with cache_dir
-        """
-        # We want to generate an url to use as our cache key, we don't want to
-        # just re-use the URL because it might have other items in the fragment
-        # and we don't care about those.
-        key_parts = [link.url_without_fragment]
-        if link.hash_name is not None and link.hash is not None:
-            key_parts.append("=".join([link.hash_name, link.hash]))
-        key_url = "#".join(key_parts)
-        # Encode our key url with sha224, we'll use this because it has similar
-        # security properties to sha256, but with a shorter total output (and
-        # thus less secure). However the differences don't make a lot of
-        # difference for our use case here.
-        hashed = hashlib.sha224(key_url.encode()).hexdigest()
-        # We want to nest the directories some to prevent having a ton of top
-        # level directories where we might run out of sub directories on some
-        # FS.
-        parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
-        return parts
-    def _get_candidates(self, link, package_name):
-        can_not_cache = (
-            not self.cache_dir or
-            not package_name or
-            not link
-        )
-        if can_not_cache:
-            return []
-        canonical_name = canonicalize_name(package_name)
-        formats = index.fmt_ctl_formats(
-            self.format_control, canonical_name
-        )
-        if not self.allowed_formats.intersection(formats):
-            return []
-        root = self.get_path_for_link(link)
-        try:
-            return os.listdir(root)
-        except OSError as err:
-            if err.errno in {errno.ENOENT, errno.ENOTDIR}:
-                return []
-            raise
-    def get_path_for_link(self, link):
-        """Return a directory to store cached items in for link.
-        """
-        raise NotImplementedError()
-    def get(self, link, package_name):
-        """Returns a link to a cached item if it exists, otherwise returns the
-        passed link.
-        """
-        raise NotImplementedError()
-    def _link_for_candidate(self, link, candidate):
-        root = self.get_path_for_link(link)
-        path = os.path.join(root, candidate)
-        return index.Link(path_to_url(path))
-    def cleanup(self):
-        pass
-class SimpleWheelCache(Cache):
-    """A cache of wheels for future installs.
-    """
-    def __init__(self, cache_dir, format_control):
-        super(SimpleWheelCache, self).__init__(
-            cache_dir, format_control, {"binary"}
-        )
-    def get_path_for_link(self, link):
-        """Return a directory to store cached wheels for link
-        Because there are M wheels for any one sdist, we provide a directory
-        to cache them in, and then consult that directory when looking up
-        cache hits.
-        We only insert things into the cache if they have plausible version
-        numbers, so that we don't contaminate the cache with things that were
-        not unique. E.g. ./package might have dozens of installs done for it
-        and build a version of 0.0...and if we built and cached a wheel, we'd
-        end up using the same wheel even if the source has been edited.
-        :param link: The link of the sdist for which this will cache wheels.
-        """
-        parts = self._get_cache_path_parts(link)
-        # Store wheels within the root cache_dir
-        return os.path.join(self.cache_dir, "wheels", *parts)
-    def get(self, link, package_name):
-        candidates = []
-        for wheel_name in self._get_candidates(link, package_name):
-            try:
-                wheel = Wheel(wheel_name)
-            except InvalidWheelFilename:
-                continue
-            if not wheel.supported():
-                # Built for a different python/arch/etc
-                continue
-            candidates.append((wheel.support_index_min(), wheel_name))
-        if not candidates:
-            return link
-        return self._link_for_candidate(link, min(candidates)[1])
-class EphemWheelCache(SimpleWheelCache):
-    """A SimpleWheelCache that creates it's own temporary cache directory
-    """
-    def __init__(self, format_control):
-        self._temp_dir = TempDirectory(kind="ephem-wheel-cache")
-        self._temp_dir.create()
-        super(EphemWheelCache, self).__init__(
-            self._temp_dir.path, format_control
-        )
-    def cleanup(self):
-        self._temp_dir.cleanup()
-class WheelCache(Cache):
-    """Wraps EphemWheelCache and SimpleWheelCache into a single Cache
-    This Cache allows for gracefully degradation, using the ephem wheel cache
-    when a certain link is not found in the simple wheel cache first.
-    """
-    def __init__(self, cache_dir, format_control):
-        super(WheelCache, self).__init__(
-            cache_dir, format_control, {'binary'}
-        )
-        self._wheel_cache = SimpleWheelCache(cache_dir, format_control)
-        self._ephem_cache = EphemWheelCache(format_control)
-    def get_path_for_link(self, link):
-        return self._wheel_cache.get_path_for_link(link)
-    def get_ephem_path_for_link(self, link):
-        return self._ephem_cache.get_path_for_link(link)
-    def get(self, link, package_name):
-        retval = self._wheel_cache.get(link, package_name)
-        if retval is link:
-            retval = self._ephem_cache.get(link, package_name)
-        return retval
-    def cleanup(self):
-        self._wheel_cache.cleanup()
-        self._ephem_cache.cleanup()

diff --git a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/cache.py b/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/cache.py deleted file mode 100644 index 5547d73..0000000 --- a/venv/lib/python3.7/site-packages/pip-10.0.1-py3.7.egg/pip/_internal/cache.py +++ /dev/null
@@ -1,202 +0,0 @@
1	"""Cache Management
2	"""
3
4	import errno
5	import hashlib
6	import logging
7	import os
8
9	from pip._vendor.packaging.utils import canonicalize_name
10
11	from pip._internal import index
12	from pip._internal.compat import expanduser
13	from pip._internal.download import path_to_url
14	from pip._internal.utils.temp_dir import TempDirectory
15	from pip._internal.wheel import InvalidWheelFilename, Wheel
16
17	logger = logging.getLogger(__name__)
18
19
20	class Cache(object):
21	"""An abstract class - provides cache directories for data from links
22
23
24	:param cache_dir: The root of the cache.
25	:param format_control: A pip.index.FormatControl object to limit
26	binaries being read from the cache.
27	:param allowed_formats: which formats of files the cache should store.
28	('binary' and 'source' are the only allowed values)
29	"""
30
31	def __init__(self, cache_dir, format_control, allowed_formats):
32	super(Cache, self).__init__()
33	self.cache_dir = expanduser(cache_dir) if cache_dir else None
34	self.format_control = format_control
35	self.allowed_formats = allowed_formats
36
37	_valid_formats = {"source", "binary"}
38	assert self.allowed_formats.union(_valid_formats) == _valid_formats
39
40	def _get_cache_path_parts(self, link):
41	"""Get parts of part that must be os.path.joined with cache_dir
42	"""
43
44	# We want to generate an url to use as our cache key, we don't want to
45	# just re-use the URL because it might have other items in the fragment
46	# and we don't care about those.
47	key_parts = [link.url_without_fragment]
48	if link.hash_name is not None and link.hash is not None:
49	key_parts.append("=".join([link.hash_name, link.hash]))
50	key_url = "#".join(key_parts)
51
52	# Encode our key url with sha224, we'll use this because it has similar
53	# security properties to sha256, but with a shorter total output (and
54	# thus less secure). However the differences don't make a lot of
55	# difference for our use case here.
56	hashed = hashlib.sha224(key_url.encode()).hexdigest()
57
58	# We want to nest the directories some to prevent having a ton of top
59	# level directories where we might run out of sub directories on some
60	# FS.
61	parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
62
63	return parts
64
65	def _get_candidates(self, link, package_name):
66	can_not_cache = (
67	not self.cache_dir or
68	not package_name or
69	not link
70	)
71	if can_not_cache:
72	return []
73
74	canonical_name = canonicalize_name(package_name)
75	formats = index.fmt_ctl_formats(
76	self.format_control, canonical_name
77	)
78	if not self.allowed_formats.intersection(formats):
79	return []
80
81	root = self.get_path_for_link(link)
82	try:
83	return os.listdir(root)
84	except OSError as err:
85	if err.errno in {errno.ENOENT, errno.ENOTDIR}:
86	return []
87	raise
88
89	def get_path_for_link(self, link):
90	"""Return a directory to store cached items in for link.
91	"""
92	raise NotImplementedError()
93
94	def get(self, link, package_name):
95	"""Returns a link to a cached item if it exists, otherwise returns the
96	passed link.
97	"""
98	raise NotImplementedError()
99
100	def _link_for_candidate(self, link, candidate):
101	root = self.get_path_for_link(link)
102	path = os.path.join(root, candidate)
103
104	return index.Link(path_to_url(path))
105
106	def cleanup(self):
107	pass
108
109
110	class SimpleWheelCache(Cache):
111	"""A cache of wheels for future installs.
112	"""
113
114	def __init__(self, cache_dir, format_control):
115	super(SimpleWheelCache, self).__init__(
116	cache_dir, format_control, {"binary"}
117	)
118
119	def get_path_for_link(self, link):
120	"""Return a directory to store cached wheels for link
121
122	Because there are M wheels for any one sdist, we provide a directory
123	to cache them in, and then consult that directory when looking up
124	cache hits.
125
126	We only insert things into the cache if they have plausible version
127	numbers, so that we don't contaminate the cache with things that were
128	not unique. E.g. ./package might have dozens of installs done for it
129	and build a version of 0.0...and if we built and cached a wheel, we'd
130	end up using the same wheel even if the source has been edited.
131
132	:param link: The link of the sdist for which this will cache wheels.
133	"""
134	parts = self._get_cache_path_parts(link)
135
136	# Store wheels within the root cache_dir
137	return os.path.join(self.cache_dir, "wheels", *parts)
138
139	def get(self, link, package_name):
140	candidates = []
141
142	for wheel_name in self._get_candidates(link, package_name):
143	try:
144	wheel = Wheel(wheel_name)
145	except InvalidWheelFilename:
146	continue
147	if not wheel.supported():
148	# Built for a different python/arch/etc
149	continue
150	candidates.append((wheel.support_index_min(), wheel_name))
151
152	if not candidates:
153	return link
154
155	return self._link_for_candidate(link, min(candidates)[1])
156
157
158	class EphemWheelCache(SimpleWheelCache):
159	"""A SimpleWheelCache that creates it's own temporary cache directory
160	"""
161
162	def __init__(self, format_control):
163	self._temp_dir = TempDirectory(kind="ephem-wheel-cache")
164	self._temp_dir.create()
165
166	super(EphemWheelCache, self).__init__(
167	self._temp_dir.path, format_control
168	)
169
170	def cleanup(self):
171	self._temp_dir.cleanup()
172
173
174	class WheelCache(Cache):
175	"""Wraps EphemWheelCache and SimpleWheelCache into a single Cache
176
177	This Cache allows for gracefully degradation, using the ephem wheel cache
178	when a certain link is not found in the simple wheel cache first.
179	"""
180
181	def __init__(self, cache_dir, format_control):
182	super(WheelCache, self).__init__(
183	cache_dir, format_control, {'binary'}
184	)
185	self._wheel_cache = SimpleWheelCache(cache_dir, format_control)
186	self._ephem_cache = EphemWheelCache(format_control)
187
188	def get_path_for_link(self, link):
189	return self._wheel_cache.get_path_for_link(link)
190
191	def get_ephem_path_for_link(self, link):
192	return self._ephem_cache.get_path_for_link(link)
193
194	def get(self, link, package_name):
195	retval = self._wheel_cache.get(link, package_name)
196	if retval is link:
197	retval = self._ephem_cache.get(link, package_name)
198	return retval
199
200	def cleanup(self):
201	self._wheel_cache.cleanup()
202	self._ephem_cache.cleanup()