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@@ -1,214 +1,222 b'' | |||
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1 | 1 | # pycompat.py - portability shim for python 3 |
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2 | 2 | # |
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3 | 3 | # This software may be used and distributed according to the terms of the |
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4 | 4 | # GNU General Public License version 2 or any later version. |
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5 | 5 | |
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6 | 6 | """Mercurial portability shim for python 3. |
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7 | 7 | |
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8 | 8 | This contains aliases to hide python version-specific details from the core. |
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9 | 9 | """ |
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10 | 10 | |
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11 | 11 | from __future__ import absolute_import |
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12 | 12 | |
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13 | 13 | import os |
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14 | 14 | import sys |
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15 | 15 | |
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16 | 16 | ispy3 = (sys.version_info[0] >= 3) |
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17 | 17 | |
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18 | 18 | if not ispy3: |
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19 | 19 | import cPickle as pickle |
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20 | 20 | import cStringIO as io |
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21 | 21 | import httplib |
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22 | 22 | import Queue as _queue |
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23 | 23 | import SocketServer as socketserver |
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24 | 24 | import urlparse |
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25 | 25 | urlunquote = urlparse.unquote |
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26 | 26 | import xmlrpclib |
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27 | 27 | else: |
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28 | 28 | import http.client as httplib |
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29 | 29 | import io |
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30 | 30 | import pickle |
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31 | 31 | import queue as _queue |
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32 | 32 | import socketserver |
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33 | 33 | import urllib.parse as urlparse |
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34 | 34 | urlunquote = urlparse.unquote_to_bytes |
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35 | 35 | import xmlrpc.client as xmlrpclib |
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36 | 36 | |
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37 | 37 | if ispy3: |
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38 | 38 | import builtins |
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39 | 39 | import functools |
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40 | 40 | fsencode = os.fsencode |
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41 | 41 | fsdecode = os.fsdecode |
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42 | 42 | # A bytes version of os.name. |
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43 | 43 | osname = os.name.encode('ascii') |
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44 | 44 | ospathsep = os.pathsep.encode('ascii') |
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45 | 45 | ossep = os.sep.encode('ascii') |
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46 | ||
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47 | # Since Python 3 converts argv to wchar_t type by Py_DecodeLocale() on Unix, | |
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48 | # we can use os.fsencode() to get back bytes argv. | |
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49 | # | |
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50 | # https://hg.python.org/cpython/file/v3.5.1/Programs/python.c#l55 | |
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51 | # | |
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52 | # TODO: On Windows, the native argv is wchar_t, so we'll need a different | |
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53 | # workaround to simulate the Python 2 (i.e. ANSI Win32 API) behavior. | |
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46 | 54 | sysargv = list(map(os.fsencode, sys.argv)) |
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47 | 55 | |
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48 | 56 | def sysstr(s): |
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49 | 57 | """Return a keyword str to be passed to Python functions such as |
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50 | 58 | getattr() and str.encode() |
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51 | 59 | |
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52 | 60 | This never raises UnicodeDecodeError. Non-ascii characters are |
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53 | 61 | considered invalid and mapped to arbitrary but unique code points |
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54 | 62 | such that 'sysstr(a) != sysstr(b)' for all 'a != b'. |
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55 | 63 | """ |
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56 | 64 | if isinstance(s, builtins.str): |
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57 | 65 | return s |
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58 | 66 | return s.decode(u'latin-1') |
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59 | 67 | |
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60 | 68 | def _wrapattrfunc(f): |
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61 | 69 | @functools.wraps(f) |
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62 | 70 | def w(object, name, *args): |
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63 | 71 | return f(object, sysstr(name), *args) |
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64 | 72 | return w |
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65 | 73 | |
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66 | 74 | # these wrappers are automagically imported by hgloader |
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67 | 75 | delattr = _wrapattrfunc(builtins.delattr) |
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68 | 76 | getattr = _wrapattrfunc(builtins.getattr) |
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69 | 77 | hasattr = _wrapattrfunc(builtins.hasattr) |
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70 | 78 | setattr = _wrapattrfunc(builtins.setattr) |
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71 | 79 | xrange = builtins.range |
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72 | 80 | |
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73 | 81 | else: |
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74 | 82 | def sysstr(s): |
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75 | 83 | return s |
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76 | 84 | |
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77 | 85 | # Partial backport from os.py in Python 3, which only accepts bytes. |
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78 | 86 | # In Python 2, our paths should only ever be bytes, a unicode path |
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79 | 87 | # indicates a bug. |
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80 | 88 | def fsencode(filename): |
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81 | 89 | if isinstance(filename, str): |
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82 | 90 | return filename |
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83 | 91 | else: |
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84 | 92 | raise TypeError( |
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85 | 93 | "expect str, not %s" % type(filename).__name__) |
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86 | 94 | |
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87 | 95 | # In Python 2, fsdecode() has a very chance to receive bytes. So it's |
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88 | 96 | # better not to touch Python 2 part as it's already working fine. |
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89 | 97 | def fsdecode(filename): |
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90 | 98 | return filename |
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91 | 99 | |
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92 | 100 | osname = os.name |
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93 | 101 | ospathsep = os.pathsep |
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94 | 102 | ossep = os.sep |
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95 | 103 | sysargv = sys.argv |
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96 | 104 | |
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97 | 105 | stringio = io.StringIO |
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98 | 106 | empty = _queue.Empty |
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99 | 107 | queue = _queue.Queue |
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100 | 108 | |
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101 | 109 | class _pycompatstub(object): |
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102 | 110 | def __init__(self): |
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103 | 111 | self._aliases = {} |
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104 | 112 | |
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105 | 113 | def _registeraliases(self, origin, items): |
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106 | 114 | """Add items that will be populated at the first access""" |
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107 | 115 | items = map(sysstr, items) |
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108 | 116 | self._aliases.update( |
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109 | 117 | (item.replace(sysstr('_'), sysstr('')).lower(), (origin, item)) |
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110 | 118 | for item in items) |
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111 | 119 | |
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112 | 120 | def __getattr__(self, name): |
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113 | 121 | try: |
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114 | 122 | origin, item = self._aliases[name] |
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115 | 123 | except KeyError: |
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116 | 124 | raise AttributeError(name) |
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117 | 125 | self.__dict__[name] = obj = getattr(origin, item) |
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118 | 126 | return obj |
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119 | 127 | |
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120 | 128 | httpserver = _pycompatstub() |
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121 | 129 | urlreq = _pycompatstub() |
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122 | 130 | urlerr = _pycompatstub() |
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123 | 131 | if not ispy3: |
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124 | 132 | import BaseHTTPServer |
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125 | 133 | import CGIHTTPServer |
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126 | 134 | import SimpleHTTPServer |
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127 | 135 | import urllib2 |
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128 | 136 | import urllib |
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129 | 137 | urlreq._registeraliases(urllib, ( |
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130 | 138 | "addclosehook", |
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131 | 139 | "addinfourl", |
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132 | 140 | "ftpwrapper", |
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133 | 141 | "pathname2url", |
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134 | 142 | "quote", |
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135 | 143 | "splitattr", |
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136 | 144 | "splitpasswd", |
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137 | 145 | "splitport", |
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138 | 146 | "splituser", |
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139 | 147 | "unquote", |
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140 | 148 | "url2pathname", |
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141 | 149 | "urlencode", |
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142 | 150 | )) |
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143 | 151 | urlreq._registeraliases(urllib2, ( |
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144 | 152 | "AbstractHTTPHandler", |
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145 | 153 | "BaseHandler", |
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146 | 154 | "build_opener", |
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147 | 155 | "FileHandler", |
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148 | 156 | "FTPHandler", |
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149 | 157 | "HTTPBasicAuthHandler", |
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150 | 158 | "HTTPDigestAuthHandler", |
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151 | 159 | "HTTPHandler", |
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152 | 160 | "HTTPPasswordMgrWithDefaultRealm", |
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153 | 161 | "HTTPSHandler", |
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154 | 162 | "install_opener", |
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155 | 163 | "ProxyHandler", |
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156 | 164 | "Request", |
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157 | 165 | "urlopen", |
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158 | 166 | )) |
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159 | 167 | urlerr._registeraliases(urllib2, ( |
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160 | 168 | "HTTPError", |
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161 | 169 | "URLError", |
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162 | 170 | )) |
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163 | 171 | httpserver._registeraliases(BaseHTTPServer, ( |
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164 | 172 | "HTTPServer", |
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165 | 173 | "BaseHTTPRequestHandler", |
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166 | 174 | )) |
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167 | 175 | httpserver._registeraliases(SimpleHTTPServer, ( |
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168 | 176 | "SimpleHTTPRequestHandler", |
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169 | 177 | )) |
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170 | 178 | httpserver._registeraliases(CGIHTTPServer, ( |
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171 | 179 | "CGIHTTPRequestHandler", |
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172 | 180 | )) |
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173 | 181 | |
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174 | 182 | else: |
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175 | 183 | import urllib.request |
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176 | 184 | urlreq._registeraliases(urllib.request, ( |
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177 | 185 | "AbstractHTTPHandler", |
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178 | 186 | "addclosehook", |
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179 | 187 | "addinfourl", |
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180 | 188 | "BaseHandler", |
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181 | 189 | "build_opener", |
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182 | 190 | "FileHandler", |
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183 | 191 | "FTPHandler", |
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184 | 192 | "ftpwrapper", |
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185 | 193 | "HTTPHandler", |
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186 | 194 | "HTTPSHandler", |
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187 | 195 | "install_opener", |
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188 | 196 | "pathname2url", |
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189 | 197 | "HTTPBasicAuthHandler", |
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190 | 198 | "HTTPDigestAuthHandler", |
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191 | 199 | "HTTPPasswordMgrWithDefaultRealm", |
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192 | 200 | "ProxyHandler", |
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193 | 201 | "quote", |
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194 | 202 | "Request", |
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195 | 203 | "splitattr", |
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196 | 204 | "splitpasswd", |
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197 | 205 | "splitport", |
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198 | 206 | "splituser", |
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199 | 207 | "unquote", |
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200 | 208 | "url2pathname", |
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201 | 209 | "urlopen", |
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202 | 210 | )) |
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203 | 211 | import urllib.error |
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204 | 212 | urlerr._registeraliases(urllib.error, ( |
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205 | 213 | "HTTPError", |
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206 | 214 | "URLError", |
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207 | 215 | )) |
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208 | 216 | import http.server |
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209 | 217 | httpserver._registeraliases(http.server, ( |
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210 | 218 | "HTTPServer", |
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211 | 219 | "BaseHTTPRequestHandler", |
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212 | 220 | "SimpleHTTPRequestHandler", |
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213 | 221 | "CGIHTTPRequestHandler", |
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214 | 222 | )) |
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