Mercurial > hg
annotate mercurial/posix.py @ 49302:ee4537e365c8
py3: remove retry on EINTR errno
Since the implementation of PEP 475 (Python 3.5), Python retries system calls
failing with EINTR. Therefore we don’t need the logic that retries it in Python
code.
author | Manuel Jacob <me@manueljacob.de> |
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date | Tue, 31 May 2022 04:11:34 +0200 |
parents | 642e31cb55f0 |
children | 53e9422a9b45 |
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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 OSError as inst: |
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179 if inst.errno != errno.ENOENT: |
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180 raise |
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181 st_mode = mode |
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182 if st_mode is None: |
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183 st_mode = ~umask |
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184 st_mode &= 0o666 |
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185 |
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186 new_mode = st_mode |
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187 |
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188 if enforcewritable: |
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189 new_mode |= stat.S_IWUSR |
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190 |
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191 os.chmod(dst, new_mode) |
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192 |
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193 |
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194 def checkexec(path): |
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195 """ |
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196 Check whether the given path is on a filesystem with UNIX-like exec flags |
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197 |
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198 Requires a directory (like /foo/.hg) |
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199 """ |
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200 |
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201 # VFAT on some Linux versions can flip mode but it doesn't persist |
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202 # a FS remount. Frequently we can detect it if files are created |
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203 # with exec bit on. |
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204 |
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205 try: |
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206 EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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207 basedir = os.path.join(path, b'.hg') |
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208 cachedir = os.path.join(basedir, b'wcache') |
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209 storedir = os.path.join(basedir, b'store') |
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210 if not os.path.exists(cachedir): |
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211 try: |
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212 # we want to create the 'cache' directory, not the '.hg' one. |
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213 # Automatically creating '.hg' directory could silently spawn |
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214 # invalid Mercurial repositories. That seems like a bad idea. |
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215 os.mkdir(cachedir) |
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216 if os.path.exists(storedir): |
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217 copymode(storedir, cachedir) |
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218 else: |
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219 copymode(basedir, cachedir) |
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220 except (IOError, OSError): |
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221 # we other fallback logic triggers |
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222 pass |
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223 if os.path.isdir(cachedir): |
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224 checkisexec = os.path.join(cachedir, b'checkisexec') |
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225 checknoexec = os.path.join(cachedir, b'checknoexec') |
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226 |
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227 try: |
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228 m = os.stat(checkisexec).st_mode |
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229 except OSError as e: |
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230 if e.errno != errno.ENOENT: |
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231 raise |
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232 # checkisexec does not exist - fall through ... |
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233 else: |
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234 # checkisexec exists, check if it actually is exec |
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235 if m & EXECFLAGS != 0: |
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236 # ensure checkisexec exists, check it isn't exec |
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237 try: |
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238 m = os.stat(checknoexec).st_mode |
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239 except OSError as e: |
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240 if e.errno != errno.ENOENT: |
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241 raise |
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242 open(checknoexec, b'w').close() # might fail |
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243 m = os.stat(checknoexec).st_mode |
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244 if m & EXECFLAGS == 0: |
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245 # check-exec is exec and check-no-exec is not exec |
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246 return True |
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247 # checknoexec exists but is exec - delete it |
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248 unlink(checknoexec) |
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249 # checkisexec exists but is not exec - delete it |
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250 unlink(checkisexec) |
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251 |
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252 # check using one file, leave it as checkisexec |
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253 checkdir = cachedir |
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254 else: |
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255 # check directly in path and don't leave checkisexec behind |
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256 checkdir = path |
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257 checkisexec = None |
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258 fh, fn = pycompat.mkstemp(dir=checkdir, prefix=b'hg-checkexec-') |
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259 try: |
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260 os.close(fh) |
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261 m = os.stat(fn).st_mode |
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262 if m & EXECFLAGS == 0: |
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263 os.chmod(fn, m & 0o777 | EXECFLAGS) |
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264 if os.stat(fn).st_mode & EXECFLAGS != 0: |
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265 if checkisexec is not None: |
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266 os.rename(fn, checkisexec) |
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267 fn = None |
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268 return True |
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269 finally: |
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270 if fn is not None: |
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271 unlink(fn) |
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272 except (IOError, OSError): |
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273 # we don't care, the user probably won't be able to commit anyway |
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274 return False |
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275 |
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276 |
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277 def checklink(path): |
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278 """check whether the given path is on a symlink-capable filesystem""" |
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279 # mktemp is not racy because symlink creation will fail if the |
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280 # file already exists |
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281 while True: |
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282 cachedir = os.path.join(path, b'.hg', b'wcache') |
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283 checklink = os.path.join(cachedir, b'checklink') |
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284 # try fast path, read only |
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285 if os.path.islink(checklink): |
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286 return True |
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287 if os.path.isdir(cachedir): |
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288 checkdir = cachedir |
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289 else: |
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290 checkdir = path |
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291 cachedir = None |
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292 name = tempfile.mktemp( |
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293 dir=pycompat.fsdecode(checkdir), prefix=r'checklink-' |
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294 ) |
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295 name = pycompat.fsencode(name) |
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296 try: |
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297 fd = None |
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298 if cachedir is None: |
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299 fd = pycompat.namedtempfile( |
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300 dir=checkdir, prefix=b'hg-checklink-' |
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301 ) |
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302 target = os.path.basename(fd.name) |
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303 else: |
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304 # create a fixed file to link to; doesn't matter if it |
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305 # already exists. |
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306 target = b'checklink-target' |
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307 try: |
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308 fullpath = os.path.join(cachedir, target) |
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309 open(fullpath, b'w').close() |
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310 except IOError as inst: |
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311 # pytype: disable=unsupported-operands |
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312 if inst[0] == errno.EACCES: |
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313 # pytype: enable=unsupported-operands |
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314 |
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315 # If we can't write to cachedir, just pretend |
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316 # that the fs is readonly and by association |
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317 # that the fs won't support symlinks. This |
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318 # seems like the least dangerous way to avoid |
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319 # data loss. |
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320 return False |
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321 raise |
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322 try: |
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323 os.symlink(target, name) |
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324 if cachedir is None: |
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325 unlink(name) |
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326 else: |
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327 try: |
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328 os.rename(name, checklink) |
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329 except OSError: |
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330 unlink(name) |
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331 return True |
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332 except OSError as inst: |
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333 # link creation might race, try again |
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334 if inst.errno == errno.EEXIST: |
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335 continue |
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336 raise |
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337 finally: |
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338 if fd is not None: |
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339 fd.close() |
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340 except AttributeError: |
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341 return False |
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342 except OSError as inst: |
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343 # sshfs might report failure while successfully creating the link |
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344 if inst.errno == errno.EIO and os.path.exists(name): |
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345 unlink(name) |
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346 return False |
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347 |
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348 |
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349 def checkosfilename(path): |
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350 """Check that the base-relative path is a valid filename on this platform. |
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351 Returns None if the path is ok, or a UI string describing the problem.""" |
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352 return None # on posix platforms, every path is ok |
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353 |
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354 |
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355 def getfsmountpoint(dirpath): |
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356 """Get the filesystem mount point from a directory (best-effort) |
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357 |
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358 Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
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359 """ |
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360 return getattr(osutil, 'getfsmountpoint', lambda x: None)(dirpath) |
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361 |
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362 |
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363 def getfstype(dirpath): |
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364 """Get the filesystem type name from a directory (best-effort) |
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365 |
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366 Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
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367 """ |
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368 return getattr(osutil, 'getfstype', lambda x: None)(dirpath) |
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369 |
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370 |
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371 def get_password(): |
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372 return encoding.strtolocal(getpass.getpass('')) |
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373 |
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374 |
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375 def setbinary(fd): |
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376 pass |
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377 |
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378 |
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379 def pconvert(path): |
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380 return path |
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381 |
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382 |
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383 def localpath(path): |
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384 return path |
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385 |
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386 |
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387 def samefile(fpath1, fpath2): |
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388 """Returns whether path1 and path2 refer to the same file. This is only |
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389 guaranteed to work for files, not directories.""" |
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390 return os.path.samefile(fpath1, fpath2) |
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391 |
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392 |
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393 def samedevice(fpath1, fpath2): |
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394 """Returns whether fpath1 and fpath2 are on the same device. This is only |
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395 guaranteed to work for files, not directories.""" |
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396 st1 = os.lstat(fpath1) |
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397 st2 = os.lstat(fpath2) |
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398 return st1.st_dev == st2.st_dev |
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399 |
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400 |
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401 # os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
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402 def normcase(path): |
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403 return path.lower() |
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404 |
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405 |
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406 # what normcase does to ASCII strings |
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407 normcasespec = encoding.normcasespecs.lower |
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408 # fallback normcase function for non-ASCII strings |
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409 normcasefallback = normcase |
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410 |
34647 | 411 if pycompat.isdarwin: |
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412 |
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413 def normcase(path): |
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414 """ |
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415 Normalize a filename for OS X-compatible comparison: |
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416 - escape-encode invalid characters |
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417 - decompose to NFD |
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|
418 - lowercase |
23597
7a5bcd471f2e
darwin: omit ignorable codepoints when normcase()ing a file path
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419 - omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] |
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|
420 |
34131
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doctest: bulk-replace string literals with b'' for Python 3
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|
421 >>> normcase(b'UPPER') |
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422 'upper' |
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423 >>> normcase(b'Caf\\xc3\\xa9') |
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424 'cafe\\xcc\\x81' |
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425 >>> normcase(b'\\xc3\\x89') |
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|
426 'e\\xcc\\x81' |
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427 >>> normcase(b'\\xb8\\xca\\xc3\\xca\\xbe\\xc8.JPG') # issue3918 |
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428 '%b8%ca%c3\\xca\\xbe%c8.jpg' |
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429 """ |
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|
430 |
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|
431 try: |
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432 return encoding.asciilower(path) # exception for non-ASCII |
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433 except UnicodeDecodeError: |
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|
434 return normcasefallback(path) |
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435 |
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436 normcasespec = encoding.normcasespecs.lower |
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437 |
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|
438 def normcasefallback(path): |
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|
439 try: |
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440 u = path.decode('utf-8') |
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441 except UnicodeDecodeError: |
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|
442 # OS X percent-encodes any bytes that aren't valid utf-8 |
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443 s = b'' |
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444 pos = 0 |
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445 l = len(path) |
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446 while pos < l: |
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447 try: |
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448 c = encoding.getutf8char(path, pos) |
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449 pos += len(c) |
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450 except ValueError: |
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451 c = b'%%%02X' % ord(path[pos : pos + 1]) |
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452 pos += 1 |
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453 s += c |
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454 |
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455 u = s.decode('utf-8') |
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456 |
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457 # Decompose then lowercase (HFS+ technote specifies lower) |
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458 enc = unicodedata.normalize('NFD', u).lower().encode('utf-8') |
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459 # drop HFS+ ignored characters |
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460 return encoding.hfsignoreclean(enc) |
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461 |
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462 |
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463 if pycompat.sysplatform == b'cygwin': |
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464 # workaround for cygwin, in which mount point part of path is |
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465 # treated as case sensitive, even though underlying NTFS is case |
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466 # insensitive. |
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467 |
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468 # default mount points |
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469 cygwinmountpoints = sorted( |
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470 [ |
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471 b"/usr/bin", |
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472 b"/usr/lib", |
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473 b"/cygdrive", |
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474 ], |
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475 reverse=True, |
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476 ) |
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477 |
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478 # use upper-ing as normcase as same as NTFS workaround |
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479 def normcase(path): |
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480 pathlen = len(path) |
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481 if (pathlen == 0) or (path[0] != pycompat.ossep): |
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482 # treat as relative |
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483 return encoding.upper(path) |
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484 |
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485 # to preserve case of mountpoint part |
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486 for mp in cygwinmountpoints: |
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487 if not path.startswith(mp): |
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488 continue |
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489 |
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490 mplen = len(mp) |
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491 if mplen == pathlen: # mount point itself |
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492 return mp |
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493 if path[mplen] == pycompat.ossep: |
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494 return mp + encoding.upper(path[mplen:]) |
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495 |
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496 return encoding.upper(path) |
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|
497 |
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|
498 normcasespec = encoding.normcasespecs.other |
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499 normcasefallback = normcase |
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|
500 |
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parents:
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|
501 # Cygwin translates native ACLs to POSIX permissions, |
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502 # but these translations are not supported by native |
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503 # tools, so the exec bit tends to be set erroneously. |
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504 # Therefore, disable executable bit access on Cygwin. |
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505 def checkexec(path): |
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|
506 return False |
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|
507 |
16241
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parents:
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|
508 # Similarly, Cygwin's symlink emulation is likely to create |
60cc3a0d2249
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|
509 # problems when Mercurial is used from both Cygwin and native |
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|
510 # Windows, with other native tools, or on shared volumes |
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|
511 def checklink(path): |
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|
512 return False |
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|
513 |
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514 |
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|
515 _needsshellquote = None |
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516 |
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517 |
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|
518 def shellquote(s): |
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519 if pycompat.sysplatform == b'OpenVMS': |
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|
520 return b'"%s"' % s |
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|
521 global _needsshellquote |
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|
522 if _needsshellquote is None: |
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parents:
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|
523 _needsshellquote = re.compile(br'[^a-zA-Z0-9._/+-]').search |
24108
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shellquote: fix missing quotes for empty string
Yuya Nishihara <yuya@tcha.org>
parents:
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|
524 if s and not _needsshellquote(s): |
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|
525 # "s" shouldn't have to be quoted |
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|
526 return s |
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|
527 else: |
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|
528 return b"'%s'" % s.replace(b"'", b"'\\''") |
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|
529 |
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|
530 |
36415
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parents:
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|
531 def shellsplit(s): |
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|
532 """Parse a command string in POSIX shell way (best-effort)""" |
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|
533 return pycompat.shlexsplit(s, posix=True) |
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534 |
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535 |
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|
536 def testpid(pid): |
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|
537 '''return False if pid dead, True if running or not sure''' |
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|
538 if pycompat.sysplatform == b'OpenVMS': |
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|
539 return True |
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|
540 try: |
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Matt Mackall <mpm@selenic.com>
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|
541 os.kill(pid, 0) |
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diff
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|
542 return True |
25660
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global: mass rewrite to use modern exception syntax
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parents:
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|
543 except OSError as inst: |
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|
544 return inst.errno != errno.ESRCH |
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|
545 |
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|
546 |
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parents:
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|
547 def isowner(st): |
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|
548 """Return True if the stat object st is from the current user.""" |
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549 return st.st_uid == os.getuid() |
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|
550 |
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551 |
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parents:
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|
552 def findexe(command): |
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|
553 """Find executable for command searching like which does. |
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554 If command is a basename then PATH is searched for command. |
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diff
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|
555 PATH isn't searched if command is an absolute or relative path. |
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|
556 If command isn't found None is returned.""" |
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557 if pycompat.sysplatform == b'OpenVMS': |
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|
558 return command |
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|
559 |
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|
560 def findexisting(executable): |
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|
561 b'Will return executable if existing file' |
15499
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Marc-Antoine Ruel <maruel@google.com>
parents:
15488
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|
562 if os.path.isfile(executable) and os.access(executable, os.X_OK): |
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|
563 return executable |
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|
564 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
565 |
30614
cfe66dcf45c0
py3: replace os.sep with pycompat.ossep (part 2 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30612
diff
changeset
|
566 if pycompat.ossep in command: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
567 return findexisting(command) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
568 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
569 if pycompat.sysplatform == b'plan9': |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
570 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
|
571 |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
572 for path in encoding.environ.get(b'PATH', b'').split(pycompat.ospathsep): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
573 executable = findexisting(os.path.join(path, command)) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
574 if executable is not None: |
15499
58f96703a9ab
posix: fix findexe() to check for file type and access
Marc-Antoine Ruel <maruel@google.com>
parents:
15488
diff
changeset
|
575 return executable |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
576 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
577 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
578 |
14237
4d684d8210a1
rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents:
14235
diff
changeset
|
579 def setsignalhandler(): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
580 pass |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
581 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
582 |
32291
bd872f64a8ba
cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents:
32129
diff
changeset
|
583 _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
|
584 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
585 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
586 def statfiles(files): |
45942
89a2afe31e82
formating: upgrade to black 20.8b1
Augie Fackler <raf@durin42.com>
parents:
45718
diff
changeset
|
587 """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
|
588 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
|
589 lstat = os.lstat |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
590 getkind = stat.S_IFMT |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
591 for nf in files: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
592 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
593 st = lstat(nf) |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
594 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
|
595 st = None |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
596 except OSError as err: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
597 if err.errno not in (errno.ENOENT, errno.ENOTDIR): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
598 raise |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
599 st = None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
600 yield st |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
601 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
602 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
603 def getuser(): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
604 '''return name of current user''' |
32129
f0ea0f642627
py3: make posix.getuser return a bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
31539
diff
changeset
|
605 return pycompat.fsencode(getpass.getuser()) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
606 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
607 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
608 def username(uid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
609 """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
|
610 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
611 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
|
612 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
613 if uid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
614 uid = os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
615 try: |
38252
a4aa77b84efd
py3: make sure util.username() always returns bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
38166
diff
changeset
|
616 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
|
617 except KeyError: |
38252
a4aa77b84efd
py3: make sure util.username() always returns bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
38166
diff
changeset
|
618 return b'%d' % uid |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
619 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
620 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
621 def groupname(gid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
622 """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
|
623 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
624 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
|
625 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
626 if gid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
627 gid = os.getgid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
628 try: |
41827
faa04f45b5fe
py3: make sure return value of posix.groupname() is bytes
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41523
diff
changeset
|
629 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
|
630 except KeyError: |
41827
faa04f45b5fe
py3: make sure return value of posix.groupname() is bytes
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41523
diff
changeset
|
631 return pycompat.bytestr(gid) |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
632 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
633 |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
634 def groupmembers(name): |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
635 """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
|
636 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
|
637 """ |
41523
3ef8bec91465
py3: do a fsdecode(), fsencode() dance in posix.py
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41504
diff
changeset
|
638 name = pycompat.fsdecode(name) |
3ef8bec91465
py3: do a fsdecode(), fsencode() dance in posix.py
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41504
diff
changeset
|
639 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
|
640 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
641 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
642 def spawndetached(args): |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
643 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
|
644 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
645 |
10239
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
646 def gethgcmd(): |
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
647 return sys.argv[:1] |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
648 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
649 |
14908
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
650 def makedir(path, notindexed): |
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
651 os.mkdir(path) |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
652 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
653 |
14910
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
654 def lookupreg(key, name=None, scope=None): |
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
655 return None |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
656 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
657 |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
658 def hidewindow(): |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
659 """Hide current shell window. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
660 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
661 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
|
662 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
|
663 """ |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
664 pass |
14926
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
665 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
666 |
48946
642e31cb55f0
py3: use class X: instead of class X(object):
Gregory Szorc <gregory.szorc@gmail.com>
parents:
48885
diff
changeset
|
667 class cachestat: |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
668 def __init__(self, path): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
669 self.stat = os.stat(path) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
670 |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
671 def cacheable(self): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
672 return bool(self.stat.st_ino) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
673 |
15791
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
674 __hash__ = object.__hash__ |
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
675 |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
676 def __eq__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
677 try: |
18442
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
678 # 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
|
679 # 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
|
680 # 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
|
681 # 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
|
682 # changes. |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
683 return ( |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
42562
diff
changeset
|
684 self.stat.st_mode == other.stat.st_mode |
2372284d9457
formatting: blacken the codebase
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685 and self.stat.st_ino == other.stat.st_ino |
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686 and self.stat.st_dev == other.stat.st_dev |
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687 and self.stat.st_nlink == other.stat.st_nlink |
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688 and self.stat.st_uid == other.stat.st_uid |
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689 and self.stat.st_gid == other.stat.st_gid |
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690 and self.stat.st_size == other.stat.st_size |
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691 and self.stat[stat.ST_MTIME] == other.stat[stat.ST_MTIME] |
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692 and self.stat[stat.ST_CTIME] == other.stat[stat.ST_CTIME] |
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693 ) |
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694 except AttributeError: |
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695 return False |
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696 |
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697 def __ne__(self, other): |
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698 return not self == other |
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699 |
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700 |
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Bryan O'Sullivan <bryano@fb.com>
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701 def statislink(st): |
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702 '''check whether a stat result is a symlink''' |
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703 return st and stat.S_ISLNK(st.st_mode) |
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704 |
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705 |
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706 def statisexec(st): |
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parents:
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707 '''check whether a stat result is an executable file''' |
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708 return st and (st.st_mode & 0o100 != 0) |
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709 |
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710 |
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711 def poll(fds): |
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712 """block until something happens on any file descriptor |
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713 |
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714 This is a generic helper that will check for any activity |
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715 (read, write. exception) and return the list of touched files. |
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716 |
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717 In unsupported cases, it will raise a NotImplementedError""" |
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718 try: |
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719 res = select.select(fds, fds, fds) |
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720 except ValueError: # out of range file descriptor |
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721 raise NotImplementedError() |
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722 return sorted(list(set(sum(res, [])))) |
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723 |
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724 |
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725 def readpipe(pipe): |
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726 """Read all available data from a pipe.""" |
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727 # We can't fstat() a pipe because Linux will always report 0. |
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728 # So, we set the pipe to non-blocking mode and read everything |
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729 # that's available. |
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730 flags = fcntl.fcntl(pipe, fcntl.F_GETFL) |
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731 flags |= os.O_NONBLOCK |
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732 oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) |
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733 |
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734 try: |
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735 chunks = [] |
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736 while True: |
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737 try: |
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738 s = pipe.read() |
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739 if not s: |
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740 break |
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741 chunks.append(s) |
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742 except IOError: |
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743 break |
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744 |
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|
745 return b''.join(chunks) |
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746 finally: |
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747 fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) |
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748 |
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749 |
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750 def bindunixsocket(sock, path): |
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|
751 """Bind the UNIX domain socket to the specified path""" |
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parents:
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|
752 # use relative path instead of full path at bind() if possible, since |
3239e2fdd2e2
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parents:
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|
753 # AF_UNIX path has very small length limit (107 chars) on common |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
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parents:
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|
754 # platforms (see sys/un.h) |
3239e2fdd2e2
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parents:
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diff
changeset
|
755 dirname, basename = os.path.split(path) |
3239e2fdd2e2
chgserver: extract utility to bind unix domain socket to long path
Yuya Nishihara <yuya@tcha.org>
parents:
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changeset
|
756 bakwdfd = None |
45718
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posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
changeset
|
757 |
87c35b5a14eb
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
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|
758 try: |
87c35b5a14eb
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
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|
759 if dirname: |
87c35b5a14eb
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
changeset
|
760 bakwdfd = os.open(b'.', os.O_DIRECTORY) |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
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|
761 os.chdir(dirname) |
87c35b5a14eb
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parents:
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changeset
|
762 sock.bind(basename) |
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parents:
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diff
changeset
|
763 if bakwdfd: |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
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|
764 os.fchdir(bakwdfd) |
87c35b5a14eb
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parents:
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diff
changeset
|
765 finally: |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
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diff
changeset
|
766 if bakwdfd: |
87c35b5a14eb
posix: avoid a leaked file descriptor in a unix domain socket exception case
Matt Harbison <matt_harbison@yahoo.com>
parents:
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|
767 os.close(bakwdfd) |