121 lines
4.8 KiB
Python
121 lines
4.8 KiB
Python
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"""
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pip._vendor is for vendoring dependencies of pip to prevent needing pip to
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depend on something external.
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Files inside of pip._vendor should be considered immutable and should only be
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updated to versions from upstream.
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"""
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from __future__ import absolute_import
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import glob
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import os.path
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import sys
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# Downstream redistributors which have debundled our dependencies should also
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# patch this value to be true. This will trigger the additional patching
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# to cause things like "six" to be available as pip.
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DEBUNDLED = False
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# By default, look in this directory for a bunch of .whl files which we will
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# add to the beginning of sys.path before attempting to import anything. This
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# is done to support downstream re-distributors like Debian and Fedora who
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# wish to create their own Wheels for our dependencies to aid in debundling.
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WHEEL_DIR = os.path.abspath(os.path.dirname(__file__))
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# Define a small helper function to alias our vendored modules to the real ones
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# if the vendored ones do not exist. This idea of this was taken from
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# https://github.com/kennethreitz/requests/pull/2567.
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def vendored(modulename):
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vendored_name = "{0}.{1}".format(__name__, modulename)
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try:
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__import__(modulename, globals(), locals(), level=0)
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except ImportError:
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# We can just silently allow import failures to pass here. If we
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# got to this point it means that ``import pip._vendor.whatever``
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# failed and so did ``import whatever``. Since we're importing this
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# upfront in an attempt to alias imports, not erroring here will
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# just mean we get a regular import error whenever pip *actually*
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# tries to import one of these modules to use it, which actually
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# gives us a better error message than we would have otherwise
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# gotten.
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pass
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else:
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sys.modules[vendored_name] = sys.modules[modulename]
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base, head = vendored_name.rsplit(".", 1)
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setattr(sys.modules[base], head, sys.modules[modulename])
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# If we're operating in a debundled setup, then we want to go ahead and trigger
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# the aliasing of our vendored libraries as well as looking for wheels to add
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# to our sys.path. This will cause all of this code to be a no-op typically
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# however downstream redistributors can enable it in a consistent way across
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# all platforms.
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if DEBUNDLED:
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# Actually look inside of WHEEL_DIR to find .whl files and add them to the
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# front of our sys.path.
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sys.path[:] = glob.glob(os.path.join(WHEEL_DIR, "*.whl")) + sys.path
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# Actually alias all of our vendored dependencies.
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vendored("cachecontrol")
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vendored("certifi")
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vendored("colorama")
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vendored("distlib")
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vendored("distro")
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vendored("six")
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vendored("six.moves")
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vendored("six.moves.urllib")
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vendored("six.moves.urllib.parse")
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vendored("packaging")
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vendored("packaging.version")
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vendored("packaging.specifiers")
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vendored("pep517")
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vendored("pkg_resources")
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vendored("platformdirs")
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vendored("progress")
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vendored("requests")
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vendored("requests.exceptions")
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vendored("requests.packages")
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vendored("requests.packages.urllib3")
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vendored("requests.packages.urllib3._collections")
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vendored("requests.packages.urllib3.connection")
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vendored("requests.packages.urllib3.connectionpool")
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vendored("requests.packages.urllib3.contrib")
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vendored("requests.packages.urllib3.contrib.ntlmpool")
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vendored("requests.packages.urllib3.contrib.pyopenssl")
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vendored("requests.packages.urllib3.exceptions")
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vendored("requests.packages.urllib3.fields")
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vendored("requests.packages.urllib3.filepost")
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vendored("requests.packages.urllib3.packages")
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vendored("requests.packages.urllib3.packages.ordered_dict")
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vendored("requests.packages.urllib3.packages.six")
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vendored("requests.packages.urllib3.packages.ssl_match_hostname")
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vendored("requests.packages.urllib3.packages.ssl_match_hostname."
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"_implementation")
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vendored("requests.packages.urllib3.poolmanager")
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vendored("requests.packages.urllib3.request")
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vendored("requests.packages.urllib3.response")
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vendored("requests.packages.urllib3.util")
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vendored("requests.packages.urllib3.util.connection")
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vendored("requests.packages.urllib3.util.request")
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vendored("requests.packages.urllib3.util.response")
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vendored("requests.packages.urllib3.util.retry")
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vendored("requests.packages.urllib3.util.ssl_")
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vendored("requests.packages.urllib3.util.timeout")
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vendored("requests.packages.urllib3.util.url")
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vendored("resolvelib")
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vendored("rich")
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vendored("rich.console")
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vendored("rich.highlighter")
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vendored("rich.logging")
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vendored("rich.markup")
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vendored("rich.progress")
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vendored("rich.segment")
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vendored("rich.style")
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vendored("rich.text")
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vendored("rich.traceback")
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vendored("tenacity")
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vendored("tomli")
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vendored("urllib3")
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