Mercurial > hg
annotate mercurial/posix.py @ 17509:f7767f52e9eb
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author | timeless@mozdev.org |
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date | Fri, 17 Aug 2012 13:58:18 -0700 |
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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 Matt Mackall <mpm@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 from i18n import _ |
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9 import encoding |
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10 import os, sys, errno, stat, getpass, pwd, grp, tempfile, unicodedata |
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11 |
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12 posixfile = open |
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13 nulldev = '/dev/null' |
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14 normpath = os.path.normpath |
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15 samestat = os.path.samestat |
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16 oslink = os.link |
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17 unlink = os.unlink |
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18 rename = os.rename |
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19 expandglobs = False |
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20 |
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21 umask = os.umask(0) |
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22 os.umask(umask) |
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23 |
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24 def openhardlinks(): |
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25 '''return true if it is safe to hold open file handles to hardlinks''' |
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26 return True |
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27 |
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28 def nlinks(name): |
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29 '''return number of hardlinks for the given file''' |
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30 return os.lstat(name).st_nlink |
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31 |
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32 def parsepatchoutput(output_line): |
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33 """parses the output produced by patch and returns the filename""" |
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34 pf = output_line[14:] |
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35 if os.sys.platform == 'OpenVMS': |
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36 if pf[0] == '`': |
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37 pf = pf[1:-1] # Remove the quotes |
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38 else: |
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39 if pf.startswith("'") and pf.endswith("'") and " " in pf: |
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40 pf = pf[1:-1] # Remove the quotes |
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41 return pf |
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42 |
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43 def sshargs(sshcmd, host, user, port): |
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44 '''Build argument list for ssh''' |
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45 args = user and ("%s@%s" % (user, host)) or host |
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46 return port and ("%s -p %s" % (args, port)) or args |
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47 |
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48 def isexec(f): |
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49 """check whether a file is executable""" |
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50 return (os.lstat(f).st_mode & 0100 != 0) |
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51 |
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52 def setflags(f, l, x): |
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53 s = os.lstat(f).st_mode |
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54 if l: |
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55 if not stat.S_ISLNK(s): |
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56 # switch file to link |
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57 fp = open(f) |
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58 data = fp.read() |
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59 fp.close() |
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60 os.unlink(f) |
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61 try: |
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62 os.symlink(data, f) |
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63 except OSError: |
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64 # failed to make a link, rewrite file |
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65 fp = open(f, "w") |
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66 fp.write(data) |
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67 fp.close() |
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68 # no chmod needed at this point |
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69 return |
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70 if stat.S_ISLNK(s): |
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71 # switch link to file |
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72 data = os.readlink(f) |
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73 os.unlink(f) |
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74 fp = open(f, "w") |
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75 fp.write(data) |
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76 fp.close() |
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77 s = 0666 & ~umask # avoid restatting for chmod |
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78 |
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79 sx = s & 0100 |
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80 if x and not sx: |
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81 # Turn on +x for every +r bit when making a file executable |
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82 # and obey umask. |
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83 os.chmod(f, s | (s & 0444) >> 2 & ~umask) |
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84 elif not x and sx: |
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85 # Turn off all +x bits |
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86 os.chmod(f, s & 0666) |
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87 |
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88 def copymode(src, dst, mode=None): |
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89 '''Copy the file mode from the file at path src to dst. |
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90 If src doesn't exist, we're using mode instead. If mode is None, we're |
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91 using umask.''' |
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92 try: |
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93 st_mode = os.lstat(src).st_mode & 0777 |
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94 except OSError, inst: |
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95 if inst.errno != errno.ENOENT: |
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96 raise |
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97 st_mode = mode |
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98 if st_mode is None: |
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99 st_mode = ~umask |
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100 st_mode &= 0666 |
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101 os.chmod(dst, st_mode) |
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102 |
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103 def checkexec(path): |
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104 """ |
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105 Check whether the given path is on a filesystem with UNIX-like exec flags |
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106 |
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107 Requires a directory (like /foo/.hg) |
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108 """ |
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109 |
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110 # VFAT on some Linux versions can flip mode but it doesn't persist |
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111 # a FS remount. Frequently we can detect it if files are created |
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112 # with exec bit on. |
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113 |
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114 try: |
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115 EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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116 fh, fn = tempfile.mkstemp(dir=path, prefix='hg-checkexec-') |
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117 try: |
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118 os.close(fh) |
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119 m = os.stat(fn).st_mode & 0777 |
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120 new_file_has_exec = m & EXECFLAGS |
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121 os.chmod(fn, m ^ EXECFLAGS) |
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122 exec_flags_cannot_flip = ((os.stat(fn).st_mode & 0777) == m) |
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123 finally: |
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124 os.unlink(fn) |
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125 except (IOError, OSError): |
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126 # we don't care, the user probably won't be able to commit anyway |
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127 return False |
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128 return not (new_file_has_exec or exec_flags_cannot_flip) |
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129 |
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130 def checklink(path): |
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131 """check whether the given path is on a symlink-capable filesystem""" |
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132 # mktemp is not racy because symlink creation will fail if the |
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133 # file already exists |
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134 name = tempfile.mktemp(dir=path, prefix='hg-checklink-') |
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135 try: |
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136 os.symlink(".", name) |
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137 os.unlink(name) |
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138 return True |
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139 except (OSError, AttributeError): |
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140 return False |
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141 |
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142 def checkosfilename(path): |
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143 '''Check that the base-relative path is a valid filename on this platform. |
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144 Returns None if the path is ok, or a UI string describing the problem.''' |
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145 pass # on posix platforms, every path is ok |
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146 |
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147 def setbinary(fd): |
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148 pass |
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149 |
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150 def pconvert(path): |
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151 return path |
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152 |
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153 def localpath(path): |
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154 return path |
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155 |
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156 def samefile(fpath1, fpath2): |
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157 """Returns whether path1 and path2 refer to the same file. This is only |
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158 guaranteed to work for files, not directories.""" |
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159 return os.path.samefile(fpath1, fpath2) |
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160 |
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161 def samedevice(fpath1, fpath2): |
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162 """Returns whether fpath1 and fpath2 are on the same device. This is only |
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163 guaranteed to work for files, not directories.""" |
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164 st1 = os.lstat(fpath1) |
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165 st2 = os.lstat(fpath2) |
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166 return st1.st_dev == st2.st_dev |
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167 |
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168 # os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
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169 def normcase(path): |
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170 return path.lower() |
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171 |
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172 if sys.platform == 'darwin': |
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173 import fcntl # only needed on darwin, missing on jython |
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174 |
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175 def normcase(path): |
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176 try: |
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177 u = path.decode('utf-8') |
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178 except UnicodeDecodeError: |
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179 # percent-encode any characters that don't round-trip |
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180 p2 = path.decode('utf-8', 'ignore').encode('utf-8') |
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181 s = "" |
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182 pos = 0 |
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183 for c in path: |
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184 if p2[pos:pos + 1] == c: |
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185 s += c |
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186 pos += 1 |
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187 else: |
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188 s += "%%%02X" % ord(c) |
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189 u = s.decode('utf-8') |
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190 |
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191 # Decompose then lowercase (HFS+ technote specifies lower) |
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192 return unicodedata.normalize('NFD', u).lower().encode('utf-8') |
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193 |
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194 def realpath(path): |
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195 ''' |
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196 Returns the true, canonical file system path equivalent to the given |
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197 path. |
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198 |
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199 Equivalent means, in this case, resulting in the same, unique |
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200 file system link to the path. Every file system entry, whether a file, |
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201 directory, hard link or symbolic link or special, will have a single |
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202 path preferred by the system, but may allow multiple, differing path |
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203 lookups to point to it. |
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204 |
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205 Most regular UNIX file systems only allow a file system entry to be |
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206 looked up by its distinct path. Obviously, this does not apply to case |
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207 insensitive file systems, whether case preserving or not. The most |
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208 complex issue to deal with is file systems transparently reencoding the |
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209 path, such as the non-standard Unicode normalisation required for HFS+ |
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210 and HFSX. |
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211 ''' |
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212 # Constants copied from /usr/include/sys/fcntl.h |
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213 F_GETPATH = 50 |
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214 O_SYMLINK = 0x200000 |
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215 |
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216 try: |
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217 fd = os.open(path, O_SYMLINK) |
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218 except OSError, err: |
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219 if err.errno == errno.ENOENT: |
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220 return path |
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221 raise |
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222 |
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223 try: |
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224 return fcntl.fcntl(fd, F_GETPATH, '\0' * 1024).rstrip('\0') |
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225 finally: |
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226 os.close(fd) |
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227 elif sys.version_info < (2, 4, 2, 'final'): |
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228 # Workaround for http://bugs.python.org/issue1213894 (os.path.realpath |
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229 # didn't resolve symlinks that were the first component of the path.) |
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230 def realpath(path): |
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231 if os.path.isabs(path): |
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232 return os.path.realpath(path) |
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233 else: |
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234 return os.path.realpath('./' + path) |
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235 else: |
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236 # Fallback to the likely inadequate Python builtin function. |
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237 realpath = os.path.realpath |
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238 |
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239 if sys.platform == 'cygwin': |
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240 # workaround for cygwin, in which mount point part of path is |
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241 # treated as case sensitive, even though underlying NTFS is case |
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242 # insensitive. |
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243 |
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244 # default mount points |
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245 cygwinmountpoints = sorted([ |
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246 "/usr/bin", |
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247 "/usr/lib", |
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248 "/cygdrive", |
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249 ], reverse=True) |
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250 |
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251 # use upper-ing as normcase as same as NTFS workaround |
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252 def normcase(path): |
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253 pathlen = len(path) |
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254 if (pathlen == 0) or (path[0] != os.sep): |
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255 # treat as relative |
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256 return encoding.upper(path) |
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257 |
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258 # to preserve case of mountpoint part |
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259 for mp in cygwinmountpoints: |
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260 if not path.startswith(mp): |
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261 continue |
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262 |
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263 mplen = len(mp) |
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264 if mplen == pathlen: # mount point itself |
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265 return mp |
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266 if path[mplen] == os.sep: |
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267 return mp + encoding.upper(path[mplen:]) |
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268 |
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269 return encoding.upper(path) |
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270 |
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271 # Cygwin translates native ACLs to POSIX permissions, |
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272 # but these translations are not supported by native |
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273 # tools, so the exec bit tends to be set erroneously. |
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274 # Therefore, disable executable bit access on Cygwin. |
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275 def checkexec(path): |
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276 return False |
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277 |
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278 # Similarly, Cygwin's symlink emulation is likely to create |
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279 # problems when Mercurial is used from both Cygwin and native |
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280 # Windows, with other native tools, or on shared volumes |
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281 def checklink(path): |
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282 return False |
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283 |
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284 def shellquote(s): |
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285 if os.sys.platform == 'OpenVMS': |
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286 return '"%s"' % s |
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287 else: |
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288 return "'%s'" % s.replace("'", "'\\''") |
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289 |
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290 def quotecommand(cmd): |
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291 return cmd |
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292 |
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293 def popen(command, mode='r'): |
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294 return os.popen(command, mode) |
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295 |
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296 def testpid(pid): |
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297 '''return False if pid dead, True if running or not sure''' |
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298 if os.sys.platform == 'OpenVMS': |
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299 return True |
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300 try: |
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301 os.kill(pid, 0) |
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302 return True |
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303 except OSError, inst: |
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304 return inst.errno != errno.ESRCH |
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305 |
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306 def explainexit(code): |
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307 """return a 2-tuple (desc, code) describing a subprocess status |
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308 (codes from kill are negative - not os.system/wait encoding)""" |
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309 if code >= 0: |
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310 return _("exited with status %d") % code, code |
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311 return _("killed by signal %d") % -code, -code |
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312 |
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313 def isowner(st): |
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314 """Return True if the stat object st is from the current user.""" |
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315 return st.st_uid == os.getuid() |
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316 |
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317 def findexe(command): |
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318 '''Find executable for command searching like which does. |
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319 If command is a basename then PATH is searched for command. |
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320 PATH isn't searched if command is an absolute or relative path. |
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321 If command isn't found None is returned.''' |
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322 if sys.platform == 'OpenVMS': |
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323 return command |
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324 |
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325 def findexisting(executable): |
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326 'Will return executable if existing file' |
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327 if os.path.isfile(executable) and os.access(executable, os.X_OK): |
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328 return executable |
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329 return None |
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330 |
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331 if os.sep in command: |
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332 return findexisting(command) |
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333 |
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334 if sys.platform == 'plan9': |
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335 return findexisting(os.path.join('/bin', command)) |
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336 |
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337 for path in os.environ.get('PATH', '').split(os.pathsep): |
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338 executable = findexisting(os.path.join(path, command)) |
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339 if executable is not None: |
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changeset
|
340 return executable |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
341 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
342 |
14237
4d684d8210a1
rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents:
14235
diff
changeset
|
343 def setsignalhandler(): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
344 pass |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
345 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
346 def statfiles(files): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
347 'Stat each file in files and yield stat or None if file does not exist.' |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
348 lstat = os.lstat |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
349 for nf in files: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
350 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
351 st = lstat(nf) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
352 except OSError, err: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
353 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
|
354 raise |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
355 st = None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
356 yield st |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
357 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
358 def getuser(): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
359 '''return name of current user''' |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
360 return getpass.getuser() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
361 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
362 def username(uid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
363 """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
|
364 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
365 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
|
366 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
367 if uid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
368 uid = os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
369 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
370 return pwd.getpwuid(uid)[0] |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
371 except KeyError: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
372 return str(uid) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
373 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
374 def groupname(gid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
375 """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
|
376 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
377 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
|
378 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
379 if gid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
380 gid = os.getgid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
381 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
382 return grp.getgrgid(gid)[0] |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
383 except KeyError: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
384 return str(gid) |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
385 |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
386 def groupmembers(name): |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
387 """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
|
388 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
|
389 """ |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
390 return list(grp.getgrnam(name).gr_mem) |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
391 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
392 def spawndetached(args): |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
393 return os.spawnvp(os.P_NOWAIT | getattr(os, 'P_DETACH', 0), |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
394 args[0], args) |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
395 |
10239
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
396 def gethgcmd(): |
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
397 return sys.argv[:1] |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
398 |
12689
c52c629ce19e
termwidth: move to ui.ui from util
Augie Fackler <durin42@gmail.com>
parents:
11138
diff
changeset
|
399 def termwidth(): |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
400 try: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
401 import termios, array, fcntl |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
402 for dev in (sys.stderr, sys.stdout, sys.stdin): |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
403 try: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
404 try: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
405 fd = dev.fileno() |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
406 except AttributeError: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
407 continue |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
408 if not os.isatty(fd): |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
409 continue |
16726
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
410 try: |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
411 arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8) |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
412 width = array.array('h', arri)[1] |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
413 if width > 0: |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
414 return width |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
415 except AttributeError: |
7002bb17cc5e
posix: workaround lack of TIOCGWINSZ on Irix (issue3449)
Mark Round <hg@markround.com>
parents:
16383
diff
changeset
|
416 pass |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
417 except ValueError: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
418 pass |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
419 except IOError, e: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
420 if e[0] == errno.EINVAL: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
421 pass |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
422 else: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
423 raise |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
424 except ImportError: |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
425 pass |
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
426 return 80 |
14908
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
427 |
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
428 def makedir(path, notindexed): |
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
429 os.mkdir(path) |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
430 |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
431 def unlinkpath(f): |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
432 """unlink and remove the directory if it is empty""" |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
433 os.unlink(f) |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
434 # try removing directories that might now be empty |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
435 try: |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
436 os.removedirs(os.path.dirname(f)) |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
437 except OSError: |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
438 pass |
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
439 |
14910
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
440 def lookupreg(key, name=None, scope=None): |
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
441 return None |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
442 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
443 def hidewindow(): |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
444 """Hide current shell window. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
445 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
446 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
|
447 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
|
448 """ |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
449 pass |
14926
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
450 |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
451 class cachestat(object): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
452 def __init__(self, path): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
453 self.stat = os.stat(path) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
454 |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
455 def cacheable(self): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
456 return bool(self.stat.st_ino) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
457 |
15791
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
458 __hash__ = object.__hash__ |
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
459 |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
460 def __eq__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
461 try: |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
462 return self.stat == other.stat |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
463 except AttributeError: |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
464 return False |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
465 |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
466 def __ne__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
467 return not self == other |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
468 |
14926
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
469 def executablepath(): |
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
470 return None # available on Windows only |