Mercurial > hg
annotate mercurial/posix.py @ 49541:976648e20856
tests: remove non-python3 line matching and tests block
We don't support Python2 anymore
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 22 Sep 2022 16:27:17 +0200 |
parents | 050dc8730858 |
children | a9faacdc5943 |
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1 # posix.py - Posix utility function implementations for Mercurial |
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2 # |
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3 # Copyright 2005-2009 Olivia Mackall <olivia@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 |
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9 import errno |
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10 import fcntl |
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11 import getpass |
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12 import grp |
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13 import os |
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14 import pwd |
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15 import re |
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16 import select |
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17 import stat |
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18 import sys |
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19 import tempfile |
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20 import unicodedata |
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21 |
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22 from .i18n import _ |
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23 from .pycompat import ( |
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24 getattr, |
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25 open, |
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26 ) |
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27 from . import ( |
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28 encoding, |
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29 error, |
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30 policy, |
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31 pycompat, |
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32 ) |
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33 |
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34 osutil = policy.importmod('osutil') |
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35 |
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36 normpath = os.path.normpath |
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37 samestat = os.path.samestat |
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38 abspath = os.path.abspath # re-exports |
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39 |
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40 try: |
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41 oslink = os.link |
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42 except AttributeError: |
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43 # Some platforms build Python without os.link on systems that are |
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44 # vaguely unix-like but don't have hardlink support. For those |
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45 # poor souls, just say we tried and that it failed so we fall back |
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46 # to copies. |
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47 def oslink(src, dst): |
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48 raise OSError( |
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49 errno.EINVAL, b'hardlinks not supported: %s to %s' % (src, dst) |
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50 ) |
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51 |
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52 |
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53 readlink = os.readlink |
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54 unlink = os.unlink |
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55 rename = os.rename |
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56 removedirs = os.removedirs |
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57 expandglobs = False |
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58 |
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59 umask = os.umask(0) |
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60 os.umask(umask) |
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61 |
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62 posixfile = open |
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63 |
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64 |
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65 def split(p): |
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66 """Same as posixpath.split, but faster |
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67 |
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68 >>> import posixpath |
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69 >>> for f in [b'/absolute/path/to/file', |
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70 ... b'relative/path/to/file', |
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71 ... b'file_alone', |
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72 ... b'path/to/directory/', |
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73 ... b'/multiple/path//separators', |
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74 ... b'/file_at_root', |
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75 ... b'///multiple_leading_separators_at_root', |
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76 ... b'']: |
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77 ... assert split(f) == posixpath.split(f), f |
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78 """ |
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79 ht = p.rsplit(b'/', 1) |
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80 if len(ht) == 1: |
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81 return b'', p |
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82 nh = ht[0].rstrip(b'/') |
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83 if nh: |
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84 return nh, ht[1] |
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85 return ht[0] + b'/', ht[1] |
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86 |
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87 |
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88 def openhardlinks(): |
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89 '''return true if it is safe to hold open file handles to hardlinks''' |
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90 return True |
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91 |
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92 |
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93 def nlinks(name): |
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94 '''return number of hardlinks for the given file''' |
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95 return os.lstat(name).st_nlink |
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96 |
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97 |
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98 def parsepatchoutput(output_line): |
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99 """parses the output produced by patch and returns the filename""" |
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100 pf = output_line[14:] |
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101 if pycompat.sysplatform == b'OpenVMS': |
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102 if pf[0] == b'`': |
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103 pf = pf[1:-1] # Remove the quotes |
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104 else: |
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105 if pf.startswith(b"'") and pf.endswith(b"'") and b" " in pf: |
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106 pf = pf[1:-1] # Remove the quotes |
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107 return pf |
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108 |
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109 |
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110 def sshargs(sshcmd, host, user, port): |
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111 '''Build argument list for ssh''' |
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112 args = user and (b"%s@%s" % (user, host)) or host |
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113 if b'-' in args[:1]: |
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114 raise error.Abort( |
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115 _(b'illegal ssh hostname or username starting with -: %s') % args |
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116 ) |
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117 args = shellquote(args) |
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118 if port: |
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119 args = b'-p %s %s' % (shellquote(port), args) |
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120 return args |
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121 |
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122 |
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123 def isexec(f): |
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124 """check whether a file is executable""" |
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125 return os.lstat(f).st_mode & 0o100 != 0 |
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126 |
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127 |
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128 def setflags(f, l, x): |
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129 st = os.lstat(f) |
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130 s = st.st_mode |
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131 if l: |
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132 if not stat.S_ISLNK(s): |
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133 # switch file to link |
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134 with open(f, b'rb') as fp: |
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135 data = fp.read() |
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136 unlink(f) |
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137 try: |
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138 os.symlink(data, f) |
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139 except OSError: |
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140 # failed to make a link, rewrite file |
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141 with open(f, b"wb") as fp: |
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142 fp.write(data) |
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143 |
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144 # no chmod needed at this point |
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145 return |
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146 if stat.S_ISLNK(s): |
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147 # switch link to file |
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148 data = os.readlink(f) |
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149 unlink(f) |
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150 with open(f, b"wb") as fp: |
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151 fp.write(data) |
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152 s = 0o666 & ~umask # avoid restatting for chmod |
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153 |
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154 sx = s & 0o100 |
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155 if st.st_nlink > 1 and bool(x) != bool(sx): |
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156 # the file is a hardlink, break it |
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157 with open(f, b"rb") as fp: |
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158 data = fp.read() |
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159 unlink(f) |
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160 with open(f, b"wb") as fp: |
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161 fp.write(data) |
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162 |
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163 if x and not sx: |
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164 # Turn on +x for every +r bit when making a file executable |
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165 # and obey umask. |
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166 os.chmod(f, s | (s & 0o444) >> 2 & ~umask) |
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167 elif not x and sx: |
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168 # Turn off all +x bits |
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169 os.chmod(f, s & 0o666) |
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170 |
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171 |
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172 def copymode(src, dst, mode=None, enforcewritable=False): |
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173 """Copy the file mode from the file at path src to dst. |
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174 If src doesn't exist, we're using mode instead. If mode is None, we're |
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175 using umask.""" |
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176 try: |
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177 st_mode = os.lstat(src).st_mode & 0o777 |
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178 except FileNotFoundError: |
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179 st_mode = mode |
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180 if st_mode is None: |
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181 st_mode = ~umask |
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182 st_mode &= 0o666 |
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183 |
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184 new_mode = st_mode |
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185 |
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186 if enforcewritable: |
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187 new_mode |= stat.S_IWUSR |
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188 |
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189 os.chmod(dst, new_mode) |
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190 |
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191 |
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192 def checkexec(path): |
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193 """ |
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194 Check whether the given path is on a filesystem with UNIX-like exec flags |
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195 |
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196 Requires a directory (like /foo/.hg) |
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197 """ |
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198 |
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199 # VFAT on some Linux versions can flip mode but it doesn't persist |
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200 # a FS remount. Frequently we can detect it if files are created |
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201 # with exec bit on. |
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202 |
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203 try: |
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204 EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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205 basedir = os.path.join(path, b'.hg') |
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206 cachedir = os.path.join(basedir, b'wcache') |
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207 storedir = os.path.join(basedir, b'store') |
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208 if not os.path.exists(cachedir): |
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209 try: |
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210 # we want to create the 'cache' directory, not the '.hg' one. |
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211 # Automatically creating '.hg' directory could silently spawn |
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212 # invalid Mercurial repositories. That seems like a bad idea. |
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213 os.mkdir(cachedir) |
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214 if os.path.exists(storedir): |
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215 copymode(storedir, cachedir) |
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216 else: |
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217 copymode(basedir, cachedir) |
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218 except (IOError, OSError): |
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219 # we other fallback logic triggers |
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220 pass |
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221 if os.path.isdir(cachedir): |
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222 checkisexec = os.path.join(cachedir, b'checkisexec') |
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223 checknoexec = os.path.join(cachedir, b'checknoexec') |
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224 |
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225 try: |
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226 m = os.stat(checkisexec).st_mode |
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227 except FileNotFoundError: |
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228 # checkisexec does not exist - fall through ... |
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229 pass |
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230 else: |
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231 # checkisexec exists, check if it actually is exec |
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232 if m & EXECFLAGS != 0: |
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233 # ensure checkisexec exists, check it isn't exec |
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234 try: |
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235 m = os.stat(checknoexec).st_mode |
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236 except FileNotFoundError: |
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237 open(checknoexec, b'w').close() # might fail |
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238 m = os.stat(checknoexec).st_mode |
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239 if m & EXECFLAGS == 0: |
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240 # check-exec is exec and check-no-exec is not exec |
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241 return True |
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242 # checknoexec exists but is exec - delete it |
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243 unlink(checknoexec) |
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244 # checkisexec exists but is not exec - delete it |
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245 unlink(checkisexec) |
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246 |
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247 # check using one file, leave it as checkisexec |
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248 checkdir = cachedir |
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249 else: |
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250 # check directly in path and don't leave checkisexec behind |
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251 checkdir = path |
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252 checkisexec = None |
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253 fh, fn = pycompat.mkstemp(dir=checkdir, prefix=b'hg-checkexec-') |
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254 try: |
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255 os.close(fh) |
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256 m = os.stat(fn).st_mode |
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257 if m & EXECFLAGS == 0: |
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258 os.chmod(fn, m & 0o777 | EXECFLAGS) |
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259 if os.stat(fn).st_mode & EXECFLAGS != 0: |
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260 if checkisexec is not None: |
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261 os.rename(fn, checkisexec) |
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262 fn = None |
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263 return True |
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264 finally: |
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265 if fn is not None: |
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266 unlink(fn) |
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267 except (IOError, OSError): |
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268 # we don't care, the user probably won't be able to commit anyway |
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269 return False |
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270 |
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271 |
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272 def checklink(path): |
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273 """check whether the given path is on a symlink-capable filesystem""" |
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274 # mktemp is not racy because symlink creation will fail if the |
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275 # file already exists |
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276 while True: |
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277 cachedir = os.path.join(path, b'.hg', b'wcache') |
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278 checklink = os.path.join(cachedir, b'checklink') |
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279 # try fast path, read only |
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280 if os.path.islink(checklink): |
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281 return True |
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282 if os.path.isdir(cachedir): |
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283 checkdir = cachedir |
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284 else: |
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285 checkdir = path |
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286 cachedir = None |
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287 name = tempfile.mktemp( |
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288 dir=pycompat.fsdecode(checkdir), prefix=r'checklink-' |
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289 ) |
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290 name = pycompat.fsencode(name) |
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291 try: |
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292 fd = None |
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293 if cachedir is None: |
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294 fd = pycompat.namedtempfile( |
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295 dir=checkdir, prefix=b'hg-checklink-' |
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296 ) |
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297 target = os.path.basename(fd.name) |
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298 else: |
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299 # create a fixed file to link to; doesn't matter if it |
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300 # already exists. |
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301 target = b'checklink-target' |
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302 try: |
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303 fullpath = os.path.join(cachedir, target) |
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304 open(fullpath, b'w').close() |
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305 except PermissionError: |
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306 # If we can't write to cachedir, just pretend |
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307 # that the fs is readonly and by association |
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308 # that the fs won't support symlinks. This |
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309 # seems like the least dangerous way to avoid |
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310 # data loss. |
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311 return False |
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312 try: |
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313 os.symlink(target, name) |
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314 if cachedir is None: |
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315 unlink(name) |
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316 else: |
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317 try: |
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318 os.rename(name, checklink) |
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319 except OSError: |
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320 unlink(name) |
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321 return True |
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322 except FileExistsError: |
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323 # link creation might race, try again |
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324 continue |
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325 finally: |
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326 if fd is not None: |
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327 fd.close() |
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328 except AttributeError: |
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329 return False |
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330 except OSError as inst: |
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331 # sshfs might report failure while successfully creating the link |
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332 if inst.errno == errno.EIO and os.path.exists(name): |
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333 unlink(name) |
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334 return False |
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335 |
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336 |
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337 def checkosfilename(path): |
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338 """Check that the base-relative path is a valid filename on this platform. |
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339 Returns None if the path is ok, or a UI string describing the problem.""" |
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340 return None # on posix platforms, every path is ok |
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341 |
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342 |
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343 def getfsmountpoint(dirpath): |
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344 """Get the filesystem mount point from a directory (best-effort) |
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345 |
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346 Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
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347 """ |
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348 return getattr(osutil, 'getfsmountpoint', lambda x: None)(dirpath) |
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349 |
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350 |
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351 def getfstype(dirpath): |
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352 """Get the filesystem type name from a directory (best-effort) |
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353 |
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354 Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
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355 """ |
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356 return getattr(osutil, 'getfstype', lambda x: None)(dirpath) |
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357 |
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358 |
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359 def get_password(): |
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360 return encoding.strtolocal(getpass.getpass('')) |
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361 |
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362 |
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363 def setbinary(fd): |
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364 pass |
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365 |
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366 |
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367 def pconvert(path): |
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368 return path |
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369 |
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370 |
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371 def localpath(path): |
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372 return path |
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373 |
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374 |
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375 def samefile(fpath1, fpath2): |
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376 """Returns whether path1 and path2 refer to the same file. This is only |
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377 guaranteed to work for files, not directories.""" |
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378 return os.path.samefile(fpath1, fpath2) |
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379 |
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380 |
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381 def samedevice(fpath1, fpath2): |
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382 """Returns whether fpath1 and fpath2 are on the same device. This is only |
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383 guaranteed to work for files, not directories.""" |
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384 st1 = os.lstat(fpath1) |
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385 st2 = os.lstat(fpath2) |
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386 return st1.st_dev == st2.st_dev |
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387 |
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388 |
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389 # os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
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390 def normcase(path): |
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391 return path.lower() |
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392 |
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393 |
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394 # what normcase does to ASCII strings |
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395 normcasespec = encoding.normcasespecs.lower |
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396 # fallback normcase function for non-ASCII strings |
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397 normcasefallback = normcase |
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398 |
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400 |
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401 def normcase(path): |
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402 """ |
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403 Normalize a filename for OS X-compatible comparison: |
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404 - escape-encode invalid characters |
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405 - decompose to NFD |
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406 - lowercase |
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407 - omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] |
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408 |
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409 >>> normcase(b'UPPER') |
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410 'upper' |
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411 >>> normcase(b'Caf\\xc3\\xa9') |
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412 'cafe\\xcc\\x81' |
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413 >>> normcase(b'\\xc3\\x89') |
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414 'e\\xcc\\x81' |
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415 >>> normcase(b'\\xb8\\xca\\xc3\\xca\\xbe\\xc8.JPG') # issue3918 |
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416 '%b8%ca%c3\\xca\\xbe%c8.jpg' |
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417 """ |
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418 |
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419 try: |
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420 return encoding.asciilower(path) # exception for non-ASCII |
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421 except UnicodeDecodeError: |
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422 return normcasefallback(path) |
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423 |
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424 normcasespec = encoding.normcasespecs.lower |
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425 |
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426 def normcasefallback(path): |
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427 try: |
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428 u = path.decode('utf-8') |
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429 except UnicodeDecodeError: |
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430 # OS X percent-encodes any bytes that aren't valid utf-8 |
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431 s = b'' |
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432 pos = 0 |
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433 l = len(path) |
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434 while pos < l: |
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435 try: |
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436 c = encoding.getutf8char(path, pos) |
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437 pos += len(c) |
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438 except ValueError: |
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439 c = b'%%%02X' % ord(path[pos : pos + 1]) |
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440 pos += 1 |
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441 s += c |
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442 |
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443 u = s.decode('utf-8') |
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444 |
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445 # Decompose then lowercase (HFS+ technote specifies lower) |
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446 enc = unicodedata.normalize('NFD', u).lower().encode('utf-8') |
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447 # drop HFS+ ignored characters |
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448 return encoding.hfsignoreclean(enc) |
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449 |
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450 |
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451 if pycompat.sysplatform == b'cygwin': |
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452 # workaround for cygwin, in which mount point part of path is |
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453 # treated as case sensitive, even though underlying NTFS is case |
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454 # insensitive. |
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455 |
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456 # default mount points |
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457 cygwinmountpoints = sorted( |
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458 [ |
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459 b"/usr/bin", |
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460 b"/usr/lib", |
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461 b"/cygdrive", |
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462 ], |
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463 reverse=True, |
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464 ) |
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465 |
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466 # use upper-ing as normcase as same as NTFS workaround |
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467 def normcase(path): |
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468 pathlen = len(path) |
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469 if (pathlen == 0) or (path[0] != pycompat.ossep): |
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470 # treat as relative |
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471 return encoding.upper(path) |
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472 |
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473 # to preserve case of mountpoint part |
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474 for mp in cygwinmountpoints: |
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475 if not path.startswith(mp): |
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476 continue |
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477 |
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478 mplen = len(mp) |
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479 if mplen == pathlen: # mount point itself |
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480 return mp |
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481 if path[mplen] == pycompat.ossep: |
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482 return mp + encoding.upper(path[mplen:]) |
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483 |
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484 return encoding.upper(path) |
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485 |
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diff
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486 normcasespec = encoding.normcasespecs.other |
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487 normcasefallback = normcase |
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488 |
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489 # Cygwin translates native ACLs to POSIX permissions, |
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490 # but these translations are not supported by native |
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491 # tools, so the exec bit tends to be set erroneously. |
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492 # Therefore, disable executable bit access on Cygwin. |
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493 def checkexec(path): |
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494 return False |
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|
495 |
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496 # Similarly, Cygwin's symlink emulation is likely to create |
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497 # problems when Mercurial is used from both Cygwin and native |
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498 # Windows, with other native tools, or on shared volumes |
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499 def checklink(path): |
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500 return False |
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501 |
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502 |
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503 _needsshellquote = None |
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504 |
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505 |
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506 def shellquote(s): |
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507 if pycompat.sysplatform == b'OpenVMS': |
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508 return b'"%s"' % s |
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|
509 global _needsshellquote |
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|
510 if _needsshellquote is None: |
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511 _needsshellquote = re.compile(br'[^a-zA-Z0-9._/+-]').search |
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512 if s and not _needsshellquote(s): |
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513 # "s" shouldn't have to be quoted |
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514 return s |
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515 else: |
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516 return b"'%s'" % s.replace(b"'", b"'\\''") |
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517 |
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518 |
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519 def shellsplit(s): |
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|
520 """Parse a command string in POSIX shell way (best-effort)""" |
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521 return pycompat.shlexsplit(s, posix=True) |
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522 |
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523 |
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|
524 def testpid(pid): |
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diff
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|
525 '''return False if pid dead, True if running or not sure''' |
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526 if pycompat.sysplatform == b'OpenVMS': |
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|
527 return True |
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|
528 try: |
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|
529 os.kill(pid, 0) |
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|
530 return True |
25660
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parents:
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diff
changeset
|
531 except OSError as inst: |
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532 return inst.errno != errno.ESRCH |
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|
533 |
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534 |
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535 def isowner(st): |
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|
536 """Return True if the stat object st is from the current user.""" |
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537 return st.st_uid == os.getuid() |
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|
538 |
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539 |
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parents:
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|
540 def findexe(command): |
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|
541 """Find executable for command searching like which does. |
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542 If command is a basename then PATH is searched for command. |
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|
543 PATH isn't searched if command is an absolute or relative path. |
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|
544 If command isn't found None is returned.""" |
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545 if pycompat.sysplatform == b'OpenVMS': |
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|
546 return command |
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|
547 |
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|
548 def findexisting(executable): |
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|
549 b'Will return executable if existing file' |
15499
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parents:
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diff
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|
550 if os.path.isfile(executable) and os.access(executable, os.X_OK): |
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Matt Mackall <mpm@selenic.com>
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|
551 return executable |
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diff
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|
552 return None |
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
553 |
30614
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Pulkit Goyal <7895pulkit@gmail.com>
parents:
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|
554 if pycompat.ossep in command: |
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parents:
diff
changeset
|
555 return findexisting(command) |
e710f0f592b2
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parents:
diff
changeset
|
556 |
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|
557 if pycompat.sysplatform == b'plan9': |
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parents:
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|
558 return findexisting(os.path.join(b'/bin', command)) |
16383
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16241
diff
changeset
|
559 |
43077
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diff
changeset
|
560 for path in encoding.environ.get(b'PATH', b'').split(pycompat.ospathsep): |
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
561 executable = findexisting(os.path.join(path, command)) |
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Matt Mackall <mpm@selenic.com>
parents:
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changeset
|
562 if executable is not None: |
15499
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parents:
15488
diff
changeset
|
563 return executable |
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parents:
diff
changeset
|
564 return None |
e710f0f592b2
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parents:
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changeset
|
565 |
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|
566 |
14237
4d684d8210a1
rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents:
14235
diff
changeset
|
567 def setsignalhandler(): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
568 pass |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
569 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
570 |
32291
bd872f64a8ba
cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents:
32129
diff
changeset
|
571 _wantedkinds = {stat.S_IFREG, stat.S_IFLNK} |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
572 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
573 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
574 def statfiles(files): |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
45718
diff
changeset
|
575 """Stat each file in files. Yield each stat, or None if a file does not |
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
45718
diff
changeset
|
576 exist or has a type we don't care about.""" |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
577 lstat = os.lstat |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
578 getkind = stat.S_IFMT |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
579 for nf in files: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
580 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
581 st = lstat(nf) |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
582 if getkind(st.st_mode) not in _wantedkinds: |
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
583 st = None |
49310
050dc8730858
py3: catch specific OSError subclasses instead of checking errno
Manuel Jacob <me@manueljacob.de>
parents:
49307
diff
changeset
|
584 except (FileNotFoundError, NotADirectoryError): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
585 st = None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
586 yield st |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
587 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
588 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
589 def getuser(): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
590 '''return name of current user''' |
32129
f0ea0f642627
py3: make posix.getuser return a bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
31539
diff
changeset
|
591 return pycompat.fsencode(getpass.getuser()) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
592 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
593 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
594 def username(uid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
595 """Return the name of the user with the given uid. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
596 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
597 If uid is None, return the name of the current user.""" |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
598 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
599 if uid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
600 uid = os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
601 try: |
38252
a4aa77b84efd
py3: make sure util.username() always returns bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
38166
diff
changeset
|
602 return pycompat.fsencode(pwd.getpwuid(uid)[0]) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
603 except KeyError: |
38252
a4aa77b84efd
py3: make sure util.username() always returns bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
38166
diff
changeset
|
604 return b'%d' % uid |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
605 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
606 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
607 def groupname(gid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
608 """Return the name of the group with the given gid. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
609 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
610 If gid is None, return the name of the current group.""" |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
611 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
612 if gid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
613 gid = os.getgid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
614 try: |
41827
faa04f45b5fe
py3: make sure return value of posix.groupname() is bytes
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41523
diff
changeset
|
615 return pycompat.fsencode(grp.getgrgid(gid)[0]) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
616 except KeyError: |
41827
faa04f45b5fe
py3: make sure return value of posix.groupname() is bytes
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41523
diff
changeset
|
617 return pycompat.bytestr(gid) |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
618 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
619 |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
620 def groupmembers(name): |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
621 """Return the list of members of the group with the given |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
622 name, KeyError if the group does not exist. |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
623 """ |
41523
3ef8bec91465
py3: do a fsdecode(), fsencode() dance in posix.py
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41504
diff
changeset
|
624 name = pycompat.fsdecode(name) |
3ef8bec91465
py3: do a fsdecode(), fsencode() dance in posix.py
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41504
diff
changeset
|
625 return pycompat.rapply(pycompat.fsencode, list(grp.getgrnam(name).gr_mem)) |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
626 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
627 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
628 def spawndetached(args): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
629 return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), args[0], args) |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
630 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
631 |
10239
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
632 def gethgcmd(): |
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
633 return sys.argv[:1] |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
634 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
635 |
14908
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
636 def makedir(path, notindexed): |
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
637 os.mkdir(path) |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
638 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
639 |
14910
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
640 def lookupreg(key, name=None, scope=None): |
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
641 return None |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
642 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
643 |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
644 def hidewindow(): |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
645 """Hide current shell window. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
646 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
647 Used to hide the window opened when starting asynchronous |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
648 child process under Windows, unneeded on other systems. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
649 """ |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
650 pass |
14926
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
651 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
652 |
48946
642e31cb55f0
py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents:
48885
diff
changeset
|
653 class cachestat: |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
654 def __init__(self, path): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
655 self.stat = os.stat(path) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
656 |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
657 def cacheable(self): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
658 return bool(self.stat.st_ino) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
659 |
15791
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
660 __hash__ = object.__hash__ |
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
661 |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
662 def __eq__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
663 try: |
18442
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
664 # Only dev, ino, size, mtime and atime are likely to change. Out |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
665 # of these, we shouldn't compare atime but should compare the |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
666 # rest. However, one of the other fields changing indicates |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
667 # something fishy going on, so return False if anything but atime |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
668 # changes. |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
669 return ( |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
670 self.stat.st_mode == other.stat.st_mode |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
671 and self.stat.st_ino == other.stat.st_ino |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
672 and self.stat.st_dev == other.stat.st_dev |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
673 and self.stat.st_nlink == other.stat.st_nlink |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
674 and self.stat.st_uid == other.stat.st_uid |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
675 and self.stat.st_gid == other.stat.st_gid |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
676 and self.stat.st_size == other.stat.st_size |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
677 and self.stat[stat.ST_MTIME] == other.stat[stat.ST_MTIME] |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
678 and self.stat[stat.ST_CTIME] == other.stat[stat.ST_CTIME] |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
679 ) |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
680 except AttributeError: |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
681 return False |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
682 |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
683 def __ne__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
684 return not self == other |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
685 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
686 |
18868
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
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687 def statislink(st): |
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688 '''check whether a stat result is a symlink''' |
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689 return st and stat.S_ISLNK(st.st_mode) |
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690 |
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691 |
18868
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692 def statisexec(st): |
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693 '''check whether a stat result is an executable file''' |
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694 return st and (st.st_mode & 0o100 != 0) |
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695 |
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696 |
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697 def poll(fds): |
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698 """block until something happens on any file descriptor |
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699 |
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700 This is a generic helper that will check for any activity |
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701 (read, write. exception) and return the list of touched files. |
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702 |
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703 In unsupported cases, it will raise a NotImplementedError""" |
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704 try: |
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705 res = select.select(fds, fds, fds) |
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706 except ValueError: # out of range file descriptor |
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707 raise NotImplementedError() |
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708 return sorted(list(set(sum(res, [])))) |
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709 |
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710 |
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711 def readpipe(pipe): |
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712 """Read all available data from a pipe.""" |
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713 # We can't fstat() a pipe because Linux will always report 0. |
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714 # So, we set the pipe to non-blocking mode and read everything |
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715 # that's available. |
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716 flags = fcntl.fcntl(pipe, fcntl.F_GETFL) |
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717 flags |= os.O_NONBLOCK |
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718 oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) |
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719 |
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720 try: |
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721 chunks = [] |
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722 while True: |
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723 try: |
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724 s = pipe.read() |
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725 if not s: |
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726 break |
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727 chunks.append(s) |
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728 except IOError: |
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729 break |
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730 |
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731 return b''.join(chunks) |
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732 finally: |
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733 fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) |
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734 |
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735 |
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736 def bindunixsocket(sock, path): |
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737 """Bind the UNIX domain socket to the specified path""" |
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738 # use relative path instead of full path at bind() if possible, since |
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739 # AF_UNIX path has very small length limit (107 chars) on common |
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740 # platforms (see sys/un.h) |
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741 dirname, basename = os.path.split(path) |
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742 bakwdfd = None |
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743 |
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744 try: |
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745 if dirname: |
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746 bakwdfd = os.open(b'.', os.O_DIRECTORY) |
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747 os.chdir(dirname) |
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748 sock.bind(basename) |
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749 if bakwdfd: |
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750 os.fchdir(bakwdfd) |
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751 finally: |
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752 if bakwdfd: |
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|
753 os.close(bakwdfd) |