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pyoxidizer: produce working Python 3 Windows installers (issue6366)...
pyoxidizer: produce working Python 3 Windows installers (issue6366) While we've had code to produce Python 3 Windows installers with PyOxidizer, we haven't been advertising them on the web site due to a bug in making TLS connections and issues around resource handling. This commit upgrades our PyOxidizer install and configuration to use a recent Git commit of PyOxidizer. This new version of PyOxidizer contains a *ton* of changes, improvements, and bug fixes. Notably, Windows shared distributions now mostly "just work" and the TLS bug and random problems with Python extension modules in the standard library go away. And Python has been upgraded from 3.7 to 3.8.6. The price we pay for this upgrade is a ton of backwards incompatible changes to Starlark. I applied this commit (the overall series actually) on stable to produce Windows installers for Mercurial 5.5.2, which I published shortly before submitting this commit for review. In order to get the stable branch working, I decided to take a less aggressive approach to Python resource management. Previously, we were attempting to load all Python modules from memory and were performing some hacks to copy Mercurial's non-module resources into additional directories in Starlark. This commit implements a resource callback function in Starlark (a new feature since PyOxidizer 0.7) to dynamically assign standard library resources to in-memory loading and all other resources to filesystem loading. This means that Mercurial's files and all the other packages we ship in the Windows installers (e.g. certifi and pygments) are loaded from the filesystem instead of from memory. This avoids issues due to lack of __file__ and enables us to ship a working Python 3 installer on Windows. The end state of the install layout after this patch is not ideal for @: we still copy resource files like templates and help text to directories next to the hg.exe executable. There is code in @ to use importlib.resources to load these files and we could likely remove these copies once this lands on @. But for now, the install layout mimics what we've shipped for seemingly forever and is backwards compatible. It allows us to achieve the milestone of working Python 3 Windows installers and gets us a giant step closer to deleting Python 2. Differential Revision: https://phab.mercurial-scm.org/D9148

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httpconnection.py
135 lines | 4.2 KiB | text/x-python | PythonLexer
# httpconnection.py - urllib2 handler for new http support
#
# Copyright 2005, 2006, 2007, 2008 Matt Mackall <mpm@selenic.com>
# Copyright 2006, 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br>
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
# Copyright 2011 Google, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
import os
from .i18n import _
from .pycompat import open
from . import (
pycompat,
util,
)
urlerr = util.urlerr
urlreq = util.urlreq
# moved here from url.py to avoid a cycle
class httpsendfile(object):
"""This is a wrapper around the objects returned by python's "open".
Its purpose is to send file-like objects via HTTP.
It do however not define a __len__ attribute because the length
might be more than Py_ssize_t can handle.
"""
def __init__(self, ui, *args, **kwargs):
self.ui = ui
self._data = open(*args, **kwargs)
self.seek = self._data.seek
self.close = self._data.close
self.write = self._data.write
self.length = os.fstat(self._data.fileno()).st_size
self._pos = 0
self._progress = self._makeprogress()
def _makeprogress(self):
# We pass double the max for total because we currently have
# to send the bundle twice in the case of a server that
# requires authentication. Since we can't know until we try
# once whether authentication will be required, just lie to
# the user and maybe the push succeeds suddenly at 50%.
return self.ui.makeprogress(
_(b'sending'), unit=_(b'kb'), total=(self.length // 1024 * 2)
)
def read(self, *args, **kwargs):
ret = self._data.read(*args, **kwargs)
if not ret:
self._progress.complete()
return ret
self._pos += len(ret)
self._progress.update(self._pos // 1024)
return ret
def __enter__(self):
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self.close()
# moved here from url.py to avoid a cycle
def readauthforuri(ui, uri, user):
uri = pycompat.bytesurl(uri)
# Read configuration
groups = {}
for key, val in ui.configitems(b'auth'):
if key in (b'cookiefile',):
continue
if b'.' not in key:
ui.warn(_(b"ignoring invalid [auth] key '%s'\n") % key)
continue
group, setting = key.rsplit(b'.', 1)
gdict = groups.setdefault(group, {})
if setting in (b'username', b'cert', b'key'):
val = util.expandpath(val)
gdict[setting] = val
# Find the best match
scheme, hostpath = uri.split(b'://', 1)
bestuser = None
bestlen = 0
bestauth = None
for group, auth in pycompat.iteritems(groups):
if user and user != auth.get(b'username', user):
# If a username was set in the URI, the entry username
# must either match it or be unset
continue
prefix = auth.get(b'prefix')
if not prefix:
continue
prefixurl = util.url(prefix)
if prefixurl.user and prefixurl.user != user:
# If a username was set in the prefix, it must match the username in
# the URI.
continue
# The URI passed in has been stripped of credentials, so erase the user
# here to allow simpler matching.
prefixurl.user = None
prefix = bytes(prefixurl)
p = prefix.split(b'://', 1)
if len(p) > 1:
schemes, prefix = [p[0]], p[1]
else:
schemes = (auth.get(b'schemes') or b'https').split()
if (
(prefix == b'*' or hostpath.startswith(prefix))
and (
len(prefix) > bestlen
or (
len(prefix) == bestlen
and not bestuser
and b'username' in auth
)
)
and scheme in schemes
):
bestlen = len(prefix)
bestauth = group, auth
bestuser = auth.get(b'username')
if user and not bestuser:
auth[b'username'] = user
return bestauth