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@@ -1,649 +1,653 b'' | |||
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1 | 1 | # posix.py - Posix utility function implementations for Mercurial |
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2 | 2 | # |
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3 | 3 | # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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4 | 4 | # |
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5 | 5 | # This software may be used and distributed according to the terms of the |
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6 | 6 | # GNU General Public License version 2 or any later version. |
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7 | 7 | |
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8 | 8 | from __future__ import absolute_import |
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9 | 9 | |
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10 | 10 | import errno |
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11 | 11 | import fcntl |
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12 | 12 | import getpass |
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13 | 13 | import grp |
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14 | 14 | import os |
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15 | 15 | import pwd |
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16 | 16 | import re |
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17 | 17 | import select |
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18 | 18 | import stat |
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19 | 19 | import sys |
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20 | 20 | import tempfile |
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21 | 21 | import unicodedata |
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22 | 22 | |
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23 | 23 | from .i18n import _ |
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24 | 24 | from . import ( |
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25 | 25 | encoding, |
|
26 | error, | |
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26 | 27 | pycompat, |
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27 | 28 | ) |
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28 | 29 | |
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29 | 30 | posixfile = open |
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30 | 31 | normpath = os.path.normpath |
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31 | 32 | samestat = os.path.samestat |
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32 | 33 | try: |
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33 | 34 | oslink = os.link |
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34 | 35 | except AttributeError: |
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35 | 36 | # Some platforms build Python without os.link on systems that are |
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36 | 37 | # vaguely unix-like but don't have hardlink support. For those |
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37 | 38 | # poor souls, just say we tried and that it failed so we fall back |
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38 | 39 | # to copies. |
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39 | 40 | def oslink(src, dst): |
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40 | 41 | raise OSError(errno.EINVAL, |
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41 | 42 | 'hardlinks not supported: %s to %s' % (src, dst)) |
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42 | 43 | unlink = os.unlink |
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43 | 44 | rename = os.rename |
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44 | 45 | removedirs = os.removedirs |
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45 | 46 | expandglobs = False |
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46 | 47 | |
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47 | 48 | umask = os.umask(0) |
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48 | 49 | os.umask(umask) |
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49 | 50 | |
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50 | 51 | def split(p): |
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51 | 52 | '''Same as posixpath.split, but faster |
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52 | 53 | |
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53 | 54 | >>> import posixpath |
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54 | 55 | >>> for f in ['/absolute/path/to/file', |
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55 | 56 | ... 'relative/path/to/file', |
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56 | 57 | ... 'file_alone', |
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57 | 58 | ... 'path/to/directory/', |
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58 | 59 | ... '/multiple/path//separators', |
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59 | 60 | ... '/file_at_root', |
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60 | 61 | ... '///multiple_leading_separators_at_root', |
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61 | 62 | ... '']: |
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62 | 63 | ... assert split(f) == posixpath.split(f), f |
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63 | 64 | ''' |
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64 | 65 | ht = p.rsplit('/', 1) |
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65 | 66 | if len(ht) == 1: |
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66 | 67 | return '', p |
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67 | 68 | nh = ht[0].rstrip('/') |
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68 | 69 | if nh: |
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69 | 70 | return nh, ht[1] |
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70 | 71 | return ht[0] + '/', ht[1] |
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71 | 72 | |
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72 | 73 | def openhardlinks(): |
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73 | 74 | '''return true if it is safe to hold open file handles to hardlinks''' |
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74 | 75 | return True |
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75 | 76 | |
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76 | 77 | def nlinks(name): |
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77 | 78 | '''return number of hardlinks for the given file''' |
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78 | 79 | return os.lstat(name).st_nlink |
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79 | 80 | |
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80 | 81 | def parsepatchoutput(output_line): |
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81 | 82 | """parses the output produced by patch and returns the filename""" |
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82 | 83 | pf = output_line[14:] |
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83 | 84 | if pycompat.sysplatform == 'OpenVMS': |
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84 | 85 | if pf[0] == '`': |
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85 | 86 | pf = pf[1:-1] # Remove the quotes |
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86 | 87 | else: |
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87 | 88 | if pf.startswith("'") and pf.endswith("'") and " " in pf: |
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88 | 89 | pf = pf[1:-1] # Remove the quotes |
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89 | 90 | return pf |
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90 | 91 | |
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91 | 92 | def sshargs(sshcmd, host, user, port): |
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92 | 93 | '''Build argument list for ssh''' |
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93 | 94 | args = user and ("%s@%s" % (user, host)) or host |
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95 | if '-' in args[:2]: | |
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96 | raise error.Abort( | |
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97 | _('illegal ssh hostname or username starting with -: %s') % args) | |
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94 | 98 | return port and ("%s -p %s" % (args, port)) or args |
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95 | 99 | |
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96 | 100 | def isexec(f): |
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97 | 101 | """check whether a file is executable""" |
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98 | 102 | return (os.lstat(f).st_mode & 0o100 != 0) |
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99 | 103 | |
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100 | 104 | def setflags(f, l, x): |
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101 | 105 | s = os.lstat(f).st_mode |
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102 | 106 | if l: |
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103 | 107 | if not stat.S_ISLNK(s): |
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104 | 108 | # switch file to link |
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105 | 109 | fp = open(f) |
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106 | 110 | data = fp.read() |
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107 | 111 | fp.close() |
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108 | 112 | unlink(f) |
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109 | 113 | try: |
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110 | 114 | os.symlink(data, f) |
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111 | 115 | except OSError: |
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112 | 116 | # failed to make a link, rewrite file |
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113 | 117 | fp = open(f, "w") |
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114 | 118 | fp.write(data) |
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115 | 119 | fp.close() |
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116 | 120 | # no chmod needed at this point |
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117 | 121 | return |
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118 | 122 | if stat.S_ISLNK(s): |
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119 | 123 | # switch link to file |
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120 | 124 | data = os.readlink(f) |
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121 | 125 | unlink(f) |
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122 | 126 | fp = open(f, "w") |
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123 | 127 | fp.write(data) |
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124 | 128 | fp.close() |
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125 | 129 | s = 0o666 & ~umask # avoid restatting for chmod |
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126 | 130 | |
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127 | 131 | sx = s & 0o100 |
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128 | 132 | if x and not sx: |
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129 | 133 | # Turn on +x for every +r bit when making a file executable |
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130 | 134 | # and obey umask. |
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131 | 135 | os.chmod(f, s | (s & 0o444) >> 2 & ~umask) |
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132 | 136 | elif not x and sx: |
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133 | 137 | # Turn off all +x bits |
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134 | 138 | os.chmod(f, s & 0o666) |
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135 | 139 | |
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136 | 140 | def copymode(src, dst, mode=None): |
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137 | 141 | '''Copy the file mode from the file at path src to dst. |
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138 | 142 | If src doesn't exist, we're using mode instead. If mode is None, we're |
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139 | 143 | using umask.''' |
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140 | 144 | try: |
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141 | 145 | st_mode = os.lstat(src).st_mode & 0o777 |
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142 | 146 | except OSError as inst: |
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143 | 147 | if inst.errno != errno.ENOENT: |
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144 | 148 | raise |
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145 | 149 | st_mode = mode |
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146 | 150 | if st_mode is None: |
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147 | 151 | st_mode = ~umask |
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148 | 152 | st_mode &= 0o666 |
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149 | 153 | os.chmod(dst, st_mode) |
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150 | 154 | |
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151 | 155 | def checkexec(path): |
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152 | 156 | """ |
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153 | 157 | Check whether the given path is on a filesystem with UNIX-like exec flags |
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154 | 158 | |
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155 | 159 | Requires a directory (like /foo/.hg) |
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156 | 160 | """ |
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157 | 161 | |
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158 | 162 | # VFAT on some Linux versions can flip mode but it doesn't persist |
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159 | 163 | # a FS remount. Frequently we can detect it if files are created |
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160 | 164 | # with exec bit on. |
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161 | 165 | |
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162 | 166 | try: |
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163 | 167 | EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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164 | 168 | cachedir = os.path.join(path, '.hg', 'cache') |
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165 | 169 | if os.path.isdir(cachedir): |
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166 | 170 | checkisexec = os.path.join(cachedir, 'checkisexec') |
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167 | 171 | checknoexec = os.path.join(cachedir, 'checknoexec') |
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168 | 172 | |
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169 | 173 | try: |
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170 | 174 | m = os.stat(checkisexec).st_mode |
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171 | 175 | except OSError as e: |
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172 | 176 | if e.errno != errno.ENOENT: |
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173 | 177 | raise |
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174 | 178 | # checkisexec does not exist - fall through ... |
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175 | 179 | else: |
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176 | 180 | # checkisexec exists, check if it actually is exec |
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177 | 181 | if m & EXECFLAGS != 0: |
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178 | 182 | # ensure checkisexec exists, check it isn't exec |
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179 | 183 | try: |
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180 | 184 | m = os.stat(checknoexec).st_mode |
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181 | 185 | except OSError as e: |
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182 | 186 | if e.errno != errno.ENOENT: |
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183 | 187 | raise |
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184 | 188 | open(checknoexec, 'w').close() # might fail |
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185 | 189 | m = os.stat(checknoexec).st_mode |
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186 | 190 | if m & EXECFLAGS == 0: |
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187 | 191 | # check-exec is exec and check-no-exec is not exec |
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188 | 192 | return True |
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189 | 193 | # checknoexec exists but is exec - delete it |
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190 | 194 | unlink(checknoexec) |
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191 | 195 | # checkisexec exists but is not exec - delete it |
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192 | 196 | unlink(checkisexec) |
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193 | 197 | |
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194 | 198 | # check using one file, leave it as checkisexec |
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195 | 199 | checkdir = cachedir |
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196 | 200 | else: |
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197 | 201 | # check directly in path and don't leave checkisexec behind |
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198 | 202 | checkdir = path |
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199 | 203 | checkisexec = None |
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200 | 204 | fh, fn = tempfile.mkstemp(dir=checkdir, prefix='hg-checkexec-') |
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201 | 205 | try: |
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202 | 206 | os.close(fh) |
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203 | 207 | m = os.stat(fn).st_mode |
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204 | 208 | if m & EXECFLAGS == 0: |
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205 | 209 | os.chmod(fn, m & 0o777 | EXECFLAGS) |
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206 | 210 | if os.stat(fn).st_mode & EXECFLAGS != 0: |
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207 | 211 | if checkisexec is not None: |
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208 | 212 | os.rename(fn, checkisexec) |
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209 | 213 | fn = None |
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210 | 214 | return True |
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211 | 215 | finally: |
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212 | 216 | if fn is not None: |
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213 | 217 | unlink(fn) |
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214 | 218 | except (IOError, OSError): |
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215 | 219 | # we don't care, the user probably won't be able to commit anyway |
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216 | 220 | return False |
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217 | 221 | |
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218 | 222 | def checklink(path): |
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219 | 223 | """check whether the given path is on a symlink-capable filesystem""" |
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220 | 224 | # mktemp is not racy because symlink creation will fail if the |
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221 | 225 | # file already exists |
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222 | 226 | while True: |
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223 | 227 | cachedir = os.path.join(path, '.hg', 'cache') |
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224 | 228 | checklink = os.path.join(cachedir, 'checklink') |
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225 | 229 | # try fast path, read only |
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226 | 230 | if os.path.islink(checklink): |
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227 | 231 | return True |
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228 | 232 | if os.path.isdir(cachedir): |
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229 | 233 | checkdir = cachedir |
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230 | 234 | else: |
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231 | 235 | checkdir = path |
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232 | 236 | cachedir = None |
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233 | 237 | fscheckdir = pycompat.fsdecode(checkdir) |
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234 | 238 | name = tempfile.mktemp(dir=fscheckdir, |
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235 | 239 | prefix=r'checklink-') |
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236 | 240 | name = pycompat.fsencode(name) |
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237 | 241 | try: |
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238 | 242 | fd = None |
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239 | 243 | if cachedir is None: |
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240 | 244 | fd = tempfile.NamedTemporaryFile(dir=fscheckdir, |
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241 | 245 | prefix=r'hg-checklink-') |
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242 | 246 | target = pycompat.fsencode(os.path.basename(fd.name)) |
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243 | 247 | else: |
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244 | 248 | # create a fixed file to link to; doesn't matter if it |
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245 | 249 | # already exists. |
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246 | 250 | target = 'checklink-target' |
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247 | 251 | open(os.path.join(cachedir, target), 'w').close() |
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248 | 252 | try: |
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249 | 253 | os.symlink(target, name) |
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250 | 254 | if cachedir is None: |
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251 | 255 | unlink(name) |
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252 | 256 | else: |
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253 | 257 | try: |
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254 | 258 | os.rename(name, checklink) |
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255 | 259 | except OSError: |
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256 | 260 | unlink(name) |
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257 | 261 | return True |
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258 | 262 | except OSError as inst: |
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259 | 263 | # link creation might race, try again |
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260 | 264 | if inst[0] == errno.EEXIST: |
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261 | 265 | continue |
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262 | 266 | raise |
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263 | 267 | finally: |
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264 | 268 | if fd is not None: |
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265 | 269 | fd.close() |
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266 | 270 | except AttributeError: |
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267 | 271 | return False |
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268 | 272 | except OSError as inst: |
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269 | 273 | # sshfs might report failure while successfully creating the link |
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270 | 274 | if inst[0] == errno.EIO and os.path.exists(name): |
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271 | 275 | unlink(name) |
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272 | 276 | return False |
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273 | 277 | |
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274 | 278 | def checkosfilename(path): |
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275 | 279 | '''Check that the base-relative path is a valid filename on this platform. |
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276 | 280 | Returns None if the path is ok, or a UI string describing the problem.''' |
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277 | 281 | pass # on posix platforms, every path is ok |
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278 | 282 | |
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279 | 283 | def setbinary(fd): |
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280 | 284 | pass |
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281 | 285 | |
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282 | 286 | def pconvert(path): |
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283 | 287 | return path |
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284 | 288 | |
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285 | 289 | def localpath(path): |
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286 | 290 | return path |
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287 | 291 | |
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288 | 292 | def samefile(fpath1, fpath2): |
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289 | 293 | """Returns whether path1 and path2 refer to the same file. This is only |
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290 | 294 | guaranteed to work for files, not directories.""" |
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291 | 295 | return os.path.samefile(fpath1, fpath2) |
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292 | 296 | |
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293 | 297 | def samedevice(fpath1, fpath2): |
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294 | 298 | """Returns whether fpath1 and fpath2 are on the same device. This is only |
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295 | 299 | guaranteed to work for files, not directories.""" |
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296 | 300 | st1 = os.lstat(fpath1) |
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297 | 301 | st2 = os.lstat(fpath2) |
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298 | 302 | return st1.st_dev == st2.st_dev |
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299 | 303 | |
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300 | 304 | # os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
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301 | 305 | def normcase(path): |
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302 | 306 | return path.lower() |
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303 | 307 | |
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304 | 308 | # what normcase does to ASCII strings |
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305 | 309 | normcasespec = encoding.normcasespecs.lower |
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306 | 310 | # fallback normcase function for non-ASCII strings |
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307 | 311 | normcasefallback = normcase |
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308 | 312 | |
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309 | 313 | if pycompat.sysplatform == 'darwin': |
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310 | 314 | |
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311 | 315 | def normcase(path): |
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312 | 316 | ''' |
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313 | 317 | Normalize a filename for OS X-compatible comparison: |
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314 | 318 | - escape-encode invalid characters |
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315 | 319 | - decompose to NFD |
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316 | 320 | - lowercase |
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317 | 321 | - omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] |
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318 | 322 | |
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319 | 323 | >>> normcase('UPPER') |
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320 | 324 | 'upper' |
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321 | 325 | >>> normcase('Caf\xc3\xa9') |
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322 | 326 | 'cafe\\xcc\\x81' |
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323 | 327 | >>> normcase('\xc3\x89') |
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324 | 328 | 'e\\xcc\\x81' |
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325 | 329 | >>> normcase('\xb8\xca\xc3\xca\xbe\xc8.JPG') # issue3918 |
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326 | 330 | '%b8%ca%c3\\xca\\xbe%c8.jpg' |
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327 | 331 | ''' |
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328 | 332 | |
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329 | 333 | try: |
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330 | 334 | return encoding.asciilower(path) # exception for non-ASCII |
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331 | 335 | except UnicodeDecodeError: |
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332 | 336 | return normcasefallback(path) |
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333 | 337 | |
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334 | 338 | normcasespec = encoding.normcasespecs.lower |
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335 | 339 | |
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336 | 340 | def normcasefallback(path): |
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337 | 341 | try: |
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338 | 342 | u = path.decode('utf-8') |
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339 | 343 | except UnicodeDecodeError: |
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340 | 344 | # OS X percent-encodes any bytes that aren't valid utf-8 |
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341 | 345 | s = '' |
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342 | 346 | pos = 0 |
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343 | 347 | l = len(path) |
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344 | 348 | while pos < l: |
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345 | 349 | try: |
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346 | 350 | c = encoding.getutf8char(path, pos) |
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347 | 351 | pos += len(c) |
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348 | 352 | except ValueError: |
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349 | 353 | c = '%%%02X' % ord(path[pos]) |
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350 | 354 | pos += 1 |
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351 | 355 | s += c |
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352 | 356 | |
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353 | 357 | u = s.decode('utf-8') |
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354 | 358 | |
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355 | 359 | # Decompose then lowercase (HFS+ technote specifies lower) |
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356 | 360 | enc = unicodedata.normalize('NFD', u).lower().encode('utf-8') |
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357 | 361 | # drop HFS+ ignored characters |
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358 | 362 | return encoding.hfsignoreclean(enc) |
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359 | 363 | |
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360 | 364 | if pycompat.sysplatform == 'cygwin': |
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361 | 365 | # workaround for cygwin, in which mount point part of path is |
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362 | 366 | # treated as case sensitive, even though underlying NTFS is case |
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363 | 367 | # insensitive. |
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364 | 368 | |
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365 | 369 | # default mount points |
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366 | 370 | cygwinmountpoints = sorted([ |
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367 | 371 | "/usr/bin", |
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368 | 372 | "/usr/lib", |
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369 | 373 | "/cygdrive", |
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370 | 374 | ], reverse=True) |
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371 | 375 | |
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372 | 376 | # use upper-ing as normcase as same as NTFS workaround |
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373 | 377 | def normcase(path): |
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374 | 378 | pathlen = len(path) |
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375 | 379 | if (pathlen == 0) or (path[0] != pycompat.ossep): |
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376 | 380 | # treat as relative |
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377 | 381 | return encoding.upper(path) |
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378 | 382 | |
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379 | 383 | # to preserve case of mountpoint part |
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380 | 384 | for mp in cygwinmountpoints: |
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381 | 385 | if not path.startswith(mp): |
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382 | 386 | continue |
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383 | 387 | |
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384 | 388 | mplen = len(mp) |
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385 | 389 | if mplen == pathlen: # mount point itself |
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386 | 390 | return mp |
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387 | 391 | if path[mplen] == pycompat.ossep: |
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388 | 392 | return mp + encoding.upper(path[mplen:]) |
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389 | 393 | |
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390 | 394 | return encoding.upper(path) |
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391 | 395 | |
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392 | 396 | normcasespec = encoding.normcasespecs.other |
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393 | 397 | normcasefallback = normcase |
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394 | 398 | |
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395 | 399 | # Cygwin translates native ACLs to POSIX permissions, |
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396 | 400 | # but these translations are not supported by native |
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397 | 401 | # tools, so the exec bit tends to be set erroneously. |
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398 | 402 | # Therefore, disable executable bit access on Cygwin. |
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399 | 403 | def checkexec(path): |
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400 | 404 | return False |
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401 | 405 | |
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402 | 406 | # Similarly, Cygwin's symlink emulation is likely to create |
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403 | 407 | # problems when Mercurial is used from both Cygwin and native |
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404 | 408 | # Windows, with other native tools, or on shared volumes |
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405 | 409 | def checklink(path): |
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406 | 410 | return False |
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407 | 411 | |
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408 | 412 | _needsshellquote = None |
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409 | 413 | def shellquote(s): |
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410 | 414 | if pycompat.sysplatform == 'OpenVMS': |
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411 | 415 | return '"%s"' % s |
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412 | 416 | global _needsshellquote |
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413 | 417 | if _needsshellquote is None: |
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414 | 418 | _needsshellquote = re.compile(br'[^a-zA-Z0-9._/+-]').search |
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415 | 419 | if s and not _needsshellquote(s): |
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416 | 420 | # "s" shouldn't have to be quoted |
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417 | 421 | return s |
|
418 | 422 | else: |
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419 | 423 | return "'%s'" % s.replace("'", "'\\''") |
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420 | 424 | |
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421 | 425 | def quotecommand(cmd): |
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422 | 426 | return cmd |
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423 | 427 | |
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424 | 428 | def popen(command, mode='r'): |
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425 | 429 | return os.popen(command, mode) |
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426 | 430 | |
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427 | 431 | def testpid(pid): |
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428 | 432 | '''return False if pid dead, True if running or not sure''' |
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429 | 433 | if pycompat.sysplatform == 'OpenVMS': |
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430 | 434 | return True |
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431 | 435 | try: |
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432 | 436 | os.kill(pid, 0) |
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433 | 437 | return True |
|
434 | 438 | except OSError as inst: |
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435 | 439 | return inst.errno != errno.ESRCH |
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436 | 440 | |
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437 | 441 | def explainexit(code): |
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438 | 442 | """return a 2-tuple (desc, code) describing a subprocess status |
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439 | 443 | (codes from kill are negative - not os.system/wait encoding)""" |
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440 | 444 | if code >= 0: |
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441 | 445 | return _("exited with status %d") % code, code |
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442 | 446 | return _("killed by signal %d") % -code, -code |
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443 | 447 | |
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444 | 448 | def isowner(st): |
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445 | 449 | """Return True if the stat object st is from the current user.""" |
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446 | 450 | return st.st_uid == os.getuid() |
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447 | 451 | |
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448 | 452 | def findexe(command): |
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449 | 453 | '''Find executable for command searching like which does. |
|
450 | 454 | If command is a basename then PATH is searched for command. |
|
451 | 455 | PATH isn't searched if command is an absolute or relative path. |
|
452 | 456 | If command isn't found None is returned.''' |
|
453 | 457 | if pycompat.sysplatform == 'OpenVMS': |
|
454 | 458 | return command |
|
455 | 459 | |
|
456 | 460 | def findexisting(executable): |
|
457 | 461 | 'Will return executable if existing file' |
|
458 | 462 | if os.path.isfile(executable) and os.access(executable, os.X_OK): |
|
459 | 463 | return executable |
|
460 | 464 | return None |
|
461 | 465 | |
|
462 | 466 | if pycompat.ossep in command: |
|
463 | 467 | return findexisting(command) |
|
464 | 468 | |
|
465 | 469 | if pycompat.sysplatform == 'plan9': |
|
466 | 470 | return findexisting(os.path.join('/bin', command)) |
|
467 | 471 | |
|
468 | 472 | for path in encoding.environ.get('PATH', '').split(pycompat.ospathsep): |
|
469 | 473 | executable = findexisting(os.path.join(path, command)) |
|
470 | 474 | if executable is not None: |
|
471 | 475 | return executable |
|
472 | 476 | return None |
|
473 | 477 | |
|
474 | 478 | def setsignalhandler(): |
|
475 | 479 | pass |
|
476 | 480 | |
|
477 | 481 | _wantedkinds = set([stat.S_IFREG, stat.S_IFLNK]) |
|
478 | 482 | |
|
479 | 483 | def statfiles(files): |
|
480 | 484 | '''Stat each file in files. Yield each stat, or None if a file does not |
|
481 | 485 | exist or has a type we don't care about.''' |
|
482 | 486 | lstat = os.lstat |
|
483 | 487 | getkind = stat.S_IFMT |
|
484 | 488 | for nf in files: |
|
485 | 489 | try: |
|
486 | 490 | st = lstat(nf) |
|
487 | 491 | if getkind(st.st_mode) not in _wantedkinds: |
|
488 | 492 | st = None |
|
489 | 493 | except OSError as err: |
|
490 | 494 | if err.errno not in (errno.ENOENT, errno.ENOTDIR): |
|
491 | 495 | raise |
|
492 | 496 | st = None |
|
493 | 497 | yield st |
|
494 | 498 | |
|
495 | 499 | def getuser(): |
|
496 | 500 | '''return name of current user''' |
|
497 | 501 | return getpass.getuser() |
|
498 | 502 | |
|
499 | 503 | def username(uid=None): |
|
500 | 504 | """Return the name of the user with the given uid. |
|
501 | 505 | |
|
502 | 506 | If uid is None, return the name of the current user.""" |
|
503 | 507 | |
|
504 | 508 | if uid is None: |
|
505 | 509 | uid = os.getuid() |
|
506 | 510 | try: |
|
507 | 511 | return pwd.getpwuid(uid)[0] |
|
508 | 512 | except KeyError: |
|
509 | 513 | return str(uid) |
|
510 | 514 | |
|
511 | 515 | def groupname(gid=None): |
|
512 | 516 | """Return the name of the group with the given gid. |
|
513 | 517 | |
|
514 | 518 | If gid is None, return the name of the current group.""" |
|
515 | 519 | |
|
516 | 520 | if gid is None: |
|
517 | 521 | gid = os.getgid() |
|
518 | 522 | try: |
|
519 | 523 | return grp.getgrgid(gid)[0] |
|
520 | 524 | except KeyError: |
|
521 | 525 | return str(gid) |
|
522 | 526 | |
|
523 | 527 | def groupmembers(name): |
|
524 | 528 | """Return the list of members of the group with the given |
|
525 | 529 | name, KeyError if the group does not exist. |
|
526 | 530 | """ |
|
527 | 531 | return list(grp.getgrnam(name).gr_mem) |
|
528 | 532 | |
|
529 | 533 | def spawndetached(args): |
|
530 | 534 | return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), |
|
531 | 535 | args[0], args) |
|
532 | 536 | |
|
533 | 537 | def gethgcmd(): |
|
534 | 538 | return sys.argv[:1] |
|
535 | 539 | |
|
536 | 540 | def makedir(path, notindexed): |
|
537 | 541 | os.mkdir(path) |
|
538 | 542 | |
|
539 | 543 | def lookupreg(key, name=None, scope=None): |
|
540 | 544 | return None |
|
541 | 545 | |
|
542 | 546 | def hidewindow(): |
|
543 | 547 | """Hide current shell window. |
|
544 | 548 | |
|
545 | 549 | Used to hide the window opened when starting asynchronous |
|
546 | 550 | child process under Windows, unneeded on other systems. |
|
547 | 551 | """ |
|
548 | 552 | pass |
|
549 | 553 | |
|
550 | 554 | class cachestat(object): |
|
551 | 555 | def __init__(self, path): |
|
552 | 556 | self.stat = os.stat(path) |
|
553 | 557 | |
|
554 | 558 | def cacheable(self): |
|
555 | 559 | return bool(self.stat.st_ino) |
|
556 | 560 | |
|
557 | 561 | __hash__ = object.__hash__ |
|
558 | 562 | |
|
559 | 563 | def __eq__(self, other): |
|
560 | 564 | try: |
|
561 | 565 | # Only dev, ino, size, mtime and atime are likely to change. Out |
|
562 | 566 | # of these, we shouldn't compare atime but should compare the |
|
563 | 567 | # rest. However, one of the other fields changing indicates |
|
564 | 568 | # something fishy going on, so return False if anything but atime |
|
565 | 569 | # changes. |
|
566 | 570 | return (self.stat.st_mode == other.stat.st_mode and |
|
567 | 571 | self.stat.st_ino == other.stat.st_ino and |
|
568 | 572 | self.stat.st_dev == other.stat.st_dev and |
|
569 | 573 | self.stat.st_nlink == other.stat.st_nlink and |
|
570 | 574 | self.stat.st_uid == other.stat.st_uid and |
|
571 | 575 | self.stat.st_gid == other.stat.st_gid and |
|
572 | 576 | self.stat.st_size == other.stat.st_size and |
|
573 | 577 | self.stat.st_mtime == other.stat.st_mtime and |
|
574 | 578 | self.stat.st_ctime == other.stat.st_ctime) |
|
575 | 579 | except AttributeError: |
|
576 | 580 | return False |
|
577 | 581 | |
|
578 | 582 | def __ne__(self, other): |
|
579 | 583 | return not self == other |
|
580 | 584 | |
|
581 | 585 | def executablepath(): |
|
582 | 586 | return None # available on Windows only |
|
583 | 587 | |
|
584 | 588 | def statislink(st): |
|
585 | 589 | '''check whether a stat result is a symlink''' |
|
586 | 590 | return st and stat.S_ISLNK(st.st_mode) |
|
587 | 591 | |
|
588 | 592 | def statisexec(st): |
|
589 | 593 | '''check whether a stat result is an executable file''' |
|
590 | 594 | return st and (st.st_mode & 0o100 != 0) |
|
591 | 595 | |
|
592 | 596 | def poll(fds): |
|
593 | 597 | """block until something happens on any file descriptor |
|
594 | 598 | |
|
595 | 599 | This is a generic helper that will check for any activity |
|
596 | 600 | (read, write. exception) and return the list of touched files. |
|
597 | 601 | |
|
598 | 602 | In unsupported cases, it will raise a NotImplementedError""" |
|
599 | 603 | try: |
|
600 | 604 | while True: |
|
601 | 605 | try: |
|
602 | 606 | res = select.select(fds, fds, fds) |
|
603 | 607 | break |
|
604 | 608 | except select.error as inst: |
|
605 | 609 | if inst.args[0] == errno.EINTR: |
|
606 | 610 | continue |
|
607 | 611 | raise |
|
608 | 612 | except ValueError: # out of range file descriptor |
|
609 | 613 | raise NotImplementedError() |
|
610 | 614 | return sorted(list(set(sum(res, [])))) |
|
611 | 615 | |
|
612 | 616 | def readpipe(pipe): |
|
613 | 617 | """Read all available data from a pipe.""" |
|
614 | 618 | # We can't fstat() a pipe because Linux will always report 0. |
|
615 | 619 | # So, we set the pipe to non-blocking mode and read everything |
|
616 | 620 | # that's available. |
|
617 | 621 | flags = fcntl.fcntl(pipe, fcntl.F_GETFL) |
|
618 | 622 | flags |= os.O_NONBLOCK |
|
619 | 623 | oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) |
|
620 | 624 | |
|
621 | 625 | try: |
|
622 | 626 | chunks = [] |
|
623 | 627 | while True: |
|
624 | 628 | try: |
|
625 | 629 | s = pipe.read() |
|
626 | 630 | if not s: |
|
627 | 631 | break |
|
628 | 632 | chunks.append(s) |
|
629 | 633 | except IOError: |
|
630 | 634 | break |
|
631 | 635 | |
|
632 | 636 | return ''.join(chunks) |
|
633 | 637 | finally: |
|
634 | 638 | fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) |
|
635 | 639 | |
|
636 | 640 | def bindunixsocket(sock, path): |
|
637 | 641 | """Bind the UNIX domain socket to the specified path""" |
|
638 | 642 | # use relative path instead of full path at bind() if possible, since |
|
639 | 643 | # AF_UNIX path has very small length limit (107 chars) on common |
|
640 | 644 | # platforms (see sys/un.h) |
|
641 | 645 | dirname, basename = os.path.split(path) |
|
642 | 646 | bakwdfd = None |
|
643 | 647 | if dirname: |
|
644 | 648 | bakwdfd = os.open('.', os.O_DIRECTORY) |
|
645 | 649 | os.chdir(dirname) |
|
646 | 650 | sock.bind(basename) |
|
647 | 651 | if bakwdfd: |
|
648 | 652 | os.fchdir(bakwdfd) |
|
649 | 653 | os.close(bakwdfd) |
@@ -1,472 +1,477 b'' | |||
|
1 | 1 | # windows.py - Windows utility function implementations for Mercurial |
|
2 | 2 | # |
|
3 | 3 | # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
|
4 | 4 | # |
|
5 | 5 | # This software may be used and distributed according to the terms of the |
|
6 | 6 | # GNU General Public License version 2 or any later version. |
|
7 | 7 | |
|
8 | 8 | from __future__ import absolute_import |
|
9 | 9 | |
|
10 | 10 | import errno |
|
11 | 11 | import msvcrt |
|
12 | 12 | import os |
|
13 | 13 | import re |
|
14 | 14 | import stat |
|
15 | 15 | import sys |
|
16 | 16 | |
|
17 | 17 | from .i18n import _ |
|
18 | 18 | from . import ( |
|
19 | 19 | encoding, |
|
20 | error, | |
|
20 | 21 | osutil, |
|
21 | 22 | pycompat, |
|
22 | 23 | win32, |
|
23 | 24 | ) |
|
24 | 25 | |
|
25 | 26 | try: |
|
26 | 27 | import _winreg as winreg |
|
27 | 28 | winreg.CloseKey |
|
28 | 29 | except ImportError: |
|
29 | 30 | import winreg |
|
30 | 31 | |
|
31 | 32 | executablepath = win32.executablepath |
|
32 | 33 | getuser = win32.getuser |
|
33 | 34 | hidewindow = win32.hidewindow |
|
34 | 35 | makedir = win32.makedir |
|
35 | 36 | nlinks = win32.nlinks |
|
36 | 37 | oslink = win32.oslink |
|
37 | 38 | samedevice = win32.samedevice |
|
38 | 39 | samefile = win32.samefile |
|
39 | 40 | setsignalhandler = win32.setsignalhandler |
|
40 | 41 | spawndetached = win32.spawndetached |
|
41 | 42 | split = os.path.split |
|
42 | 43 | testpid = win32.testpid |
|
43 | 44 | unlink = win32.unlink |
|
44 | 45 | |
|
45 | 46 | umask = 0o022 |
|
46 | 47 | |
|
47 | 48 | class mixedfilemodewrapper(object): |
|
48 | 49 | """Wraps a file handle when it is opened in read/write mode. |
|
49 | 50 | |
|
50 | 51 | fopen() and fdopen() on Windows have a specific-to-Windows requirement |
|
51 | 52 | that files opened with mode r+, w+, or a+ make a call to a file positioning |
|
52 | 53 | function when switching between reads and writes. Without this extra call, |
|
53 | 54 | Python will raise a not very intuitive "IOError: [Errno 0] Error." |
|
54 | 55 | |
|
55 | 56 | This class wraps posixfile instances when the file is opened in read/write |
|
56 | 57 | mode and automatically adds checks or inserts appropriate file positioning |
|
57 | 58 | calls when necessary. |
|
58 | 59 | """ |
|
59 | 60 | OPNONE = 0 |
|
60 | 61 | OPREAD = 1 |
|
61 | 62 | OPWRITE = 2 |
|
62 | 63 | |
|
63 | 64 | def __init__(self, fp): |
|
64 | 65 | object.__setattr__(self, r'_fp', fp) |
|
65 | 66 | object.__setattr__(self, r'_lastop', 0) |
|
66 | 67 | |
|
67 | 68 | def __enter__(self): |
|
68 | 69 | return self._fp.__enter__() |
|
69 | 70 | |
|
70 | 71 | def __exit__(self, exc_type, exc_val, exc_tb): |
|
71 | 72 | self._fp.__exit__(exc_type, exc_val, exc_tb) |
|
72 | 73 | |
|
73 | 74 | def __getattr__(self, name): |
|
74 | 75 | return getattr(self._fp, name) |
|
75 | 76 | |
|
76 | 77 | def __setattr__(self, name, value): |
|
77 | 78 | return self._fp.__setattr__(name, value) |
|
78 | 79 | |
|
79 | 80 | def _noopseek(self): |
|
80 | 81 | self._fp.seek(0, os.SEEK_CUR) |
|
81 | 82 | |
|
82 | 83 | def seek(self, *args, **kwargs): |
|
83 | 84 | object.__setattr__(self, r'_lastop', self.OPNONE) |
|
84 | 85 | return self._fp.seek(*args, **kwargs) |
|
85 | 86 | |
|
86 | 87 | def write(self, d): |
|
87 | 88 | if self._lastop == self.OPREAD: |
|
88 | 89 | self._noopseek() |
|
89 | 90 | |
|
90 | 91 | object.__setattr__(self, r'_lastop', self.OPWRITE) |
|
91 | 92 | return self._fp.write(d) |
|
92 | 93 | |
|
93 | 94 | def writelines(self, *args, **kwargs): |
|
94 | 95 | if self._lastop == self.OPREAD: |
|
95 | 96 | self._noopeseek() |
|
96 | 97 | |
|
97 | 98 | object.__setattr__(self, r'_lastop', self.OPWRITE) |
|
98 | 99 | return self._fp.writelines(*args, **kwargs) |
|
99 | 100 | |
|
100 | 101 | def read(self, *args, **kwargs): |
|
101 | 102 | if self._lastop == self.OPWRITE: |
|
102 | 103 | self._noopseek() |
|
103 | 104 | |
|
104 | 105 | object.__setattr__(self, r'_lastop', self.OPREAD) |
|
105 | 106 | return self._fp.read(*args, **kwargs) |
|
106 | 107 | |
|
107 | 108 | def readline(self, *args, **kwargs): |
|
108 | 109 | if self._lastop == self.OPWRITE: |
|
109 | 110 | self._noopseek() |
|
110 | 111 | |
|
111 | 112 | object.__setattr__(self, r'_lastop', self.OPREAD) |
|
112 | 113 | return self._fp.readline(*args, **kwargs) |
|
113 | 114 | |
|
114 | 115 | def readlines(self, *args, **kwargs): |
|
115 | 116 | if self._lastop == self.OPWRITE: |
|
116 | 117 | self._noopseek() |
|
117 | 118 | |
|
118 | 119 | object.__setattr__(self, r'_lastop', self.OPREAD) |
|
119 | 120 | return self._fp.readlines(*args, **kwargs) |
|
120 | 121 | |
|
121 | 122 | def posixfile(name, mode='r', buffering=-1): |
|
122 | 123 | '''Open a file with even more POSIX-like semantics''' |
|
123 | 124 | try: |
|
124 | 125 | fp = osutil.posixfile(name, mode, buffering) # may raise WindowsError |
|
125 | 126 | |
|
126 | 127 | # The position when opening in append mode is implementation defined, so |
|
127 | 128 | # make it consistent with other platforms, which position at EOF. |
|
128 | 129 | if 'a' in mode: |
|
129 | 130 | fp.seek(0, os.SEEK_END) |
|
130 | 131 | |
|
131 | 132 | if '+' in mode: |
|
132 | 133 | return mixedfilemodewrapper(fp) |
|
133 | 134 | |
|
134 | 135 | return fp |
|
135 | 136 | except WindowsError as err: |
|
136 | 137 | # convert to a friendlier exception |
|
137 | 138 | raise IOError(err.errno, '%s: %s' % (name, err.strerror)) |
|
138 | 139 | |
|
139 | 140 | class winstdout(object): |
|
140 | 141 | '''stdout on windows misbehaves if sent through a pipe''' |
|
141 | 142 | |
|
142 | 143 | def __init__(self, fp): |
|
143 | 144 | self.fp = fp |
|
144 | 145 | |
|
145 | 146 | def __getattr__(self, key): |
|
146 | 147 | return getattr(self.fp, key) |
|
147 | 148 | |
|
148 | 149 | def close(self): |
|
149 | 150 | try: |
|
150 | 151 | self.fp.close() |
|
151 | 152 | except IOError: |
|
152 | 153 | pass |
|
153 | 154 | |
|
154 | 155 | def write(self, s): |
|
155 | 156 | try: |
|
156 | 157 | # This is workaround for "Not enough space" error on |
|
157 | 158 | # writing large size of data to console. |
|
158 | 159 | limit = 16000 |
|
159 | 160 | l = len(s) |
|
160 | 161 | start = 0 |
|
161 | 162 | self.softspace = 0 |
|
162 | 163 | while start < l: |
|
163 | 164 | end = start + limit |
|
164 | 165 | self.fp.write(s[start:end]) |
|
165 | 166 | start = end |
|
166 | 167 | except IOError as inst: |
|
167 | 168 | if inst.errno != 0: |
|
168 | 169 | raise |
|
169 | 170 | self.close() |
|
170 | 171 | raise IOError(errno.EPIPE, 'Broken pipe') |
|
171 | 172 | |
|
172 | 173 | def flush(self): |
|
173 | 174 | try: |
|
174 | 175 | return self.fp.flush() |
|
175 | 176 | except IOError as inst: |
|
176 | 177 | if inst.errno != errno.EINVAL: |
|
177 | 178 | raise |
|
178 | 179 | self.close() |
|
179 | 180 | raise IOError(errno.EPIPE, 'Broken pipe') |
|
180 | 181 | |
|
181 | 182 | def _is_win_9x(): |
|
182 | 183 | '''return true if run on windows 95, 98 or me.''' |
|
183 | 184 | try: |
|
184 | 185 | return sys.getwindowsversion()[3] == 1 |
|
185 | 186 | except AttributeError: |
|
186 | 187 | return 'command' in encoding.environ.get('comspec', '') |
|
187 | 188 | |
|
188 | 189 | def openhardlinks(): |
|
189 | 190 | return not _is_win_9x() |
|
190 | 191 | |
|
191 | 192 | def parsepatchoutput(output_line): |
|
192 | 193 | """parses the output produced by patch and returns the filename""" |
|
193 | 194 | pf = output_line[14:] |
|
194 | 195 | if pf[0] == '`': |
|
195 | 196 | pf = pf[1:-1] # Remove the quotes |
|
196 | 197 | return pf |
|
197 | 198 | |
|
198 | 199 | def sshargs(sshcmd, host, user, port): |
|
199 | 200 | '''Build argument list for ssh or Plink''' |
|
200 | 201 | pflag = 'plink' in sshcmd.lower() and '-P' or '-p' |
|
201 | 202 | args = user and ("%s@%s" % (user, host)) or host |
|
203 | if args.startswith('-') or args.startswith('/'): | |
|
204 | raise error.Abort( | |
|
205 | _('illegal ssh hostname or username starting with - or /: %s') % | |
|
206 | args) | |
|
202 | 207 | return port and ("%s %s %s" % (args, pflag, port)) or args |
|
203 | 208 | |
|
204 | 209 | def setflags(f, l, x): |
|
205 | 210 | pass |
|
206 | 211 | |
|
207 | 212 | def copymode(src, dst, mode=None): |
|
208 | 213 | pass |
|
209 | 214 | |
|
210 | 215 | def checkexec(path): |
|
211 | 216 | return False |
|
212 | 217 | |
|
213 | 218 | def checklink(path): |
|
214 | 219 | return False |
|
215 | 220 | |
|
216 | 221 | def setbinary(fd): |
|
217 | 222 | # When run without console, pipes may expose invalid |
|
218 | 223 | # fileno(), usually set to -1. |
|
219 | 224 | fno = getattr(fd, 'fileno', None) |
|
220 | 225 | if fno is not None and fno() >= 0: |
|
221 | 226 | msvcrt.setmode(fno(), os.O_BINARY) |
|
222 | 227 | |
|
223 | 228 | def pconvert(path): |
|
224 | 229 | return path.replace(pycompat.ossep, '/') |
|
225 | 230 | |
|
226 | 231 | def localpath(path): |
|
227 | 232 | return path.replace('/', '\\') |
|
228 | 233 | |
|
229 | 234 | def normpath(path): |
|
230 | 235 | return pconvert(os.path.normpath(path)) |
|
231 | 236 | |
|
232 | 237 | def normcase(path): |
|
233 | 238 | return encoding.upper(path) # NTFS compares via upper() |
|
234 | 239 | |
|
235 | 240 | # see posix.py for definitions |
|
236 | 241 | normcasespec = encoding.normcasespecs.upper |
|
237 | 242 | normcasefallback = encoding.upperfallback |
|
238 | 243 | |
|
239 | 244 | def samestat(s1, s2): |
|
240 | 245 | return False |
|
241 | 246 | |
|
242 | 247 | # A sequence of backslashes is special iff it precedes a double quote: |
|
243 | 248 | # - if there's an even number of backslashes, the double quote is not |
|
244 | 249 | # quoted (i.e. it ends the quoted region) |
|
245 | 250 | # - if there's an odd number of backslashes, the double quote is quoted |
|
246 | 251 | # - in both cases, every pair of backslashes is unquoted into a single |
|
247 | 252 | # backslash |
|
248 | 253 | # (See http://msdn2.microsoft.com/en-us/library/a1y7w461.aspx ) |
|
249 | 254 | # So, to quote a string, we must surround it in double quotes, double |
|
250 | 255 | # the number of backslashes that precede double quotes and add another |
|
251 | 256 | # backslash before every double quote (being careful with the double |
|
252 | 257 | # quote we've appended to the end) |
|
253 | 258 | _quotere = None |
|
254 | 259 | _needsshellquote = None |
|
255 | 260 | def shellquote(s): |
|
256 | 261 | r""" |
|
257 | 262 | >>> shellquote(r'C:\Users\xyz') |
|
258 | 263 | '"C:\\Users\\xyz"' |
|
259 | 264 | >>> shellquote(r'C:\Users\xyz/mixed') |
|
260 | 265 | '"C:\\Users\\xyz/mixed"' |
|
261 | 266 | >>> # Would be safe not to quote too, since it is all double backslashes |
|
262 | 267 | >>> shellquote(r'C:\\Users\\xyz') |
|
263 | 268 | '"C:\\\\Users\\\\xyz"' |
|
264 | 269 | >>> # But this must be quoted |
|
265 | 270 | >>> shellquote(r'C:\\Users\\xyz/abc') |
|
266 | 271 | '"C:\\\\Users\\\\xyz/abc"' |
|
267 | 272 | """ |
|
268 | 273 | global _quotere |
|
269 | 274 | if _quotere is None: |
|
270 | 275 | _quotere = re.compile(r'(\\*)("|\\$)') |
|
271 | 276 | global _needsshellquote |
|
272 | 277 | if _needsshellquote is None: |
|
273 | 278 | # ":" is also treated as "safe character", because it is used as a part |
|
274 | 279 | # of path name on Windows. "\" is also part of a path name, but isn't |
|
275 | 280 | # safe because shlex.split() (kind of) treats it as an escape char and |
|
276 | 281 | # drops it. It will leave the next character, even if it is another |
|
277 | 282 | # "\". |
|
278 | 283 | _needsshellquote = re.compile(r'[^a-zA-Z0-9._:/-]').search |
|
279 | 284 | if s and not _needsshellquote(s) and not _quotere.search(s): |
|
280 | 285 | # "s" shouldn't have to be quoted |
|
281 | 286 | return s |
|
282 | 287 | return '"%s"' % _quotere.sub(r'\1\1\\\2', s) |
|
283 | 288 | |
|
284 | 289 | def quotecommand(cmd): |
|
285 | 290 | """Build a command string suitable for os.popen* calls.""" |
|
286 | 291 | if sys.version_info < (2, 7, 1): |
|
287 | 292 | # Python versions since 2.7.1 do this extra quoting themselves |
|
288 | 293 | return '"' + cmd + '"' |
|
289 | 294 | return cmd |
|
290 | 295 | |
|
291 | 296 | def popen(command, mode='r'): |
|
292 | 297 | # Work around "popen spawned process may not write to stdout |
|
293 | 298 | # under windows" |
|
294 | 299 | # http://bugs.python.org/issue1366 |
|
295 | 300 | command += " 2> %s" % os.devnull |
|
296 | 301 | return os.popen(quotecommand(command), mode) |
|
297 | 302 | |
|
298 | 303 | def explainexit(code): |
|
299 | 304 | return _("exited with status %d") % code, code |
|
300 | 305 | |
|
301 | 306 | # if you change this stub into a real check, please try to implement the |
|
302 | 307 | # username and groupname functions above, too. |
|
303 | 308 | def isowner(st): |
|
304 | 309 | return True |
|
305 | 310 | |
|
306 | 311 | def findexe(command): |
|
307 | 312 | '''Find executable for command searching like cmd.exe does. |
|
308 | 313 | If command is a basename then PATH is searched for command. |
|
309 | 314 | PATH isn't searched if command is an absolute or relative path. |
|
310 | 315 | An extension from PATHEXT is found and added if not present. |
|
311 | 316 | If command isn't found None is returned.''' |
|
312 | 317 | pathext = encoding.environ.get('PATHEXT', '.COM;.EXE;.BAT;.CMD') |
|
313 | 318 | pathexts = [ext for ext in pathext.lower().split(pycompat.ospathsep)] |
|
314 | 319 | if os.path.splitext(command)[1].lower() in pathexts: |
|
315 | 320 | pathexts = [''] |
|
316 | 321 | |
|
317 | 322 | def findexisting(pathcommand): |
|
318 | 323 | 'Will append extension (if needed) and return existing file' |
|
319 | 324 | for ext in pathexts: |
|
320 | 325 | executable = pathcommand + ext |
|
321 | 326 | if os.path.exists(executable): |
|
322 | 327 | return executable |
|
323 | 328 | return None |
|
324 | 329 | |
|
325 | 330 | if pycompat.ossep in command: |
|
326 | 331 | return findexisting(command) |
|
327 | 332 | |
|
328 | 333 | for path in encoding.environ.get('PATH', '').split(pycompat.ospathsep): |
|
329 | 334 | executable = findexisting(os.path.join(path, command)) |
|
330 | 335 | if executable is not None: |
|
331 | 336 | return executable |
|
332 | 337 | return findexisting(os.path.expanduser(os.path.expandvars(command))) |
|
333 | 338 | |
|
334 | 339 | _wantedkinds = set([stat.S_IFREG, stat.S_IFLNK]) |
|
335 | 340 | |
|
336 | 341 | def statfiles(files): |
|
337 | 342 | '''Stat each file in files. Yield each stat, or None if a file |
|
338 | 343 | does not exist or has a type we don't care about. |
|
339 | 344 | |
|
340 | 345 | Cluster and cache stat per directory to minimize number of OS stat calls.''' |
|
341 | 346 | dircache = {} # dirname -> filename -> status | None if file does not exist |
|
342 | 347 | getkind = stat.S_IFMT |
|
343 | 348 | for nf in files: |
|
344 | 349 | nf = normcase(nf) |
|
345 | 350 | dir, base = os.path.split(nf) |
|
346 | 351 | if not dir: |
|
347 | 352 | dir = '.' |
|
348 | 353 | cache = dircache.get(dir, None) |
|
349 | 354 | if cache is None: |
|
350 | 355 | try: |
|
351 | 356 | dmap = dict([(normcase(n), s) |
|
352 | 357 | for n, k, s in osutil.listdir(dir, True) |
|
353 | 358 | if getkind(s.st_mode) in _wantedkinds]) |
|
354 | 359 | except OSError as err: |
|
355 | 360 | # Python >= 2.5 returns ENOENT and adds winerror field |
|
356 | 361 | # EINVAL is raised if dir is not a directory. |
|
357 | 362 | if err.errno not in (errno.ENOENT, errno.EINVAL, |
|
358 | 363 | errno.ENOTDIR): |
|
359 | 364 | raise |
|
360 | 365 | dmap = {} |
|
361 | 366 | cache = dircache.setdefault(dir, dmap) |
|
362 | 367 | yield cache.get(base, None) |
|
363 | 368 | |
|
364 | 369 | def username(uid=None): |
|
365 | 370 | """Return the name of the user with the given uid. |
|
366 | 371 | |
|
367 | 372 | If uid is None, return the name of the current user.""" |
|
368 | 373 | return None |
|
369 | 374 | |
|
370 | 375 | def groupname(gid=None): |
|
371 | 376 | """Return the name of the group with the given gid. |
|
372 | 377 | |
|
373 | 378 | If gid is None, return the name of the current group.""" |
|
374 | 379 | return None |
|
375 | 380 | |
|
376 | 381 | def removedirs(name): |
|
377 | 382 | """special version of os.removedirs that does not remove symlinked |
|
378 | 383 | directories or junction points if they actually contain files""" |
|
379 | 384 | if osutil.listdir(name): |
|
380 | 385 | return |
|
381 | 386 | os.rmdir(name) |
|
382 | 387 | head, tail = os.path.split(name) |
|
383 | 388 | if not tail: |
|
384 | 389 | head, tail = os.path.split(head) |
|
385 | 390 | while head and tail: |
|
386 | 391 | try: |
|
387 | 392 | if osutil.listdir(head): |
|
388 | 393 | return |
|
389 | 394 | os.rmdir(head) |
|
390 | 395 | except (ValueError, OSError): |
|
391 | 396 | break |
|
392 | 397 | head, tail = os.path.split(head) |
|
393 | 398 | |
|
394 | 399 | def rename(src, dst): |
|
395 | 400 | '''atomically rename file src to dst, replacing dst if it exists''' |
|
396 | 401 | try: |
|
397 | 402 | os.rename(src, dst) |
|
398 | 403 | except OSError as e: |
|
399 | 404 | if e.errno != errno.EEXIST: |
|
400 | 405 | raise |
|
401 | 406 | unlink(dst) |
|
402 | 407 | os.rename(src, dst) |
|
403 | 408 | |
|
404 | 409 | def gethgcmd(): |
|
405 | 410 | return [sys.executable] + sys.argv[:1] |
|
406 | 411 | |
|
407 | 412 | def groupmembers(name): |
|
408 | 413 | # Don't support groups on Windows for now |
|
409 | 414 | raise KeyError |
|
410 | 415 | |
|
411 | 416 | def isexec(f): |
|
412 | 417 | return False |
|
413 | 418 | |
|
414 | 419 | class cachestat(object): |
|
415 | 420 | def __init__(self, path): |
|
416 | 421 | pass |
|
417 | 422 | |
|
418 | 423 | def cacheable(self): |
|
419 | 424 | return False |
|
420 | 425 | |
|
421 | 426 | def lookupreg(key, valname=None, scope=None): |
|
422 | 427 | ''' Look up a key/value name in the Windows registry. |
|
423 | 428 | |
|
424 | 429 | valname: value name. If unspecified, the default value for the key |
|
425 | 430 | is used. |
|
426 | 431 | scope: optionally specify scope for registry lookup, this can be |
|
427 | 432 | a sequence of scopes to look up in order. Default (CURRENT_USER, |
|
428 | 433 | LOCAL_MACHINE). |
|
429 | 434 | ''' |
|
430 | 435 | if scope is None: |
|
431 | 436 | scope = (winreg.HKEY_CURRENT_USER, winreg.HKEY_LOCAL_MACHINE) |
|
432 | 437 | elif not isinstance(scope, (list, tuple)): |
|
433 | 438 | scope = (scope,) |
|
434 | 439 | for s in scope: |
|
435 | 440 | try: |
|
436 | 441 | val = winreg.QueryValueEx(winreg.OpenKey(s, key), valname)[0] |
|
437 | 442 | # never let a Unicode string escape into the wild |
|
438 | 443 | return encoding.unitolocal(val) |
|
439 | 444 | except EnvironmentError: |
|
440 | 445 | pass |
|
441 | 446 | |
|
442 | 447 | expandglobs = True |
|
443 | 448 | |
|
444 | 449 | def statislink(st): |
|
445 | 450 | '''check whether a stat result is a symlink''' |
|
446 | 451 | return False |
|
447 | 452 | |
|
448 | 453 | def statisexec(st): |
|
449 | 454 | '''check whether a stat result is an executable file''' |
|
450 | 455 | return False |
|
451 | 456 | |
|
452 | 457 | def poll(fds): |
|
453 | 458 | # see posix.py for description |
|
454 | 459 | raise NotImplementedError() |
|
455 | 460 | |
|
456 | 461 | def readpipe(pipe): |
|
457 | 462 | """Read all available data from a pipe.""" |
|
458 | 463 | chunks = [] |
|
459 | 464 | while True: |
|
460 | 465 | size = win32.peekpipe(pipe) |
|
461 | 466 | if not size: |
|
462 | 467 | break |
|
463 | 468 | |
|
464 | 469 | s = pipe.read(size) |
|
465 | 470 | if not s: |
|
466 | 471 | break |
|
467 | 472 | chunks.append(s) |
|
468 | 473 | |
|
469 | 474 | return ''.join(chunks) |
|
470 | 475 | |
|
471 | 476 | def bindunixsocket(sock, path): |
|
472 | 477 | raise NotImplementedError('unsupported platform') |
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