Mercurial > hg
annotate mercurial/posix.py @ 33507:e9672de52a23
debugignore: eliminate inconsistencies with `hg status` (issue5222)
Using a matcher for this command allows processing the named file(s) as
relative to cwd. It also leverages the icasefs normalization logic the same
way the status command does. (However, a false indicator is given for a
nonexistent file in some cases, e.g. passing 'foo.REJ' when that file doesn't
exist, and the rule is '*.rej'. Maybe the regex itself needs to be case
insensitive on these platforms, at least for the debug command.) Finally, the
file printed is relative to cwd and uses platform specific slashes, so a few
(glob)s were needed in seemingly unrelated tests.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sat, 15 Jul 2017 15:23:29 -0400 |
parents | c2cb0de25120 |
children | 739cc0f9cbb4 |
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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 __future__ import absolute_import |
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9 |
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10 import errno |
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11 import fcntl |
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12 import getpass |
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13 import grp |
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14 import os |
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15 import pwd |
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16 import re |
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17 import select |
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18 import stat |
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19 import sys |
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20 import tempfile |
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21 import unicodedata |
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22 |
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23 from .i18n import _ |
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24 from . import ( |
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25 encoding, |
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26 pycompat, |
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27 ) |
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28 |
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29 posixfile = open |
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30 normpath = os.path.normpath |
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31 samestat = os.path.samestat |
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32 try: |
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33 oslink = os.link |
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34 except AttributeError: |
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35 # Some platforms build Python without os.link on systems that are |
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36 # vaguely unix-like but don't have hardlink support. For those |
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37 # poor souls, just say we tried and that it failed so we fall back |
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38 # to copies. |
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39 def oslink(src, dst): |
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40 raise OSError(errno.EINVAL, |
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41 'hardlinks not supported: %s to %s' % (src, dst)) |
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42 unlink = os.unlink |
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43 rename = os.rename |
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44 removedirs = os.removedirs |
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45 expandglobs = False |
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46 |
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47 umask = os.umask(0) |
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48 os.umask(umask) |
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49 |
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50 def split(p): |
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51 '''Same as posixpath.split, but faster |
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52 |
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53 >>> import posixpath |
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54 >>> for f in ['/absolute/path/to/file', |
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55 ... 'relative/path/to/file', |
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56 ... 'file_alone', |
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57 ... 'path/to/directory/', |
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58 ... '/multiple/path//separators', |
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59 ... '/file_at_root', |
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60 ... '///multiple_leading_separators_at_root', |
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61 ... '']: |
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62 ... assert split(f) == posixpath.split(f), f |
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63 ''' |
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64 ht = p.rsplit('/', 1) |
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65 if len(ht) == 1: |
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66 return '', p |
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67 nh = ht[0].rstrip('/') |
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68 if nh: |
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69 return nh, ht[1] |
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70 return ht[0] + '/', ht[1] |
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71 |
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72 def openhardlinks(): |
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73 '''return true if it is safe to hold open file handles to hardlinks''' |
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74 return True |
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75 |
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76 def nlinks(name): |
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77 '''return number of hardlinks for the given file''' |
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78 return os.lstat(name).st_nlink |
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79 |
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80 def parsepatchoutput(output_line): |
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81 """parses the output produced by patch and returns the filename""" |
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82 pf = output_line[14:] |
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83 if pycompat.sysplatform == 'OpenVMS': |
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84 if pf[0] == '`': |
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85 pf = pf[1:-1] # Remove the quotes |
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86 else: |
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87 if pf.startswith("'") and pf.endswith("'") and " " in pf: |
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88 pf = pf[1:-1] # Remove the quotes |
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89 return pf |
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90 |
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91 def sshargs(sshcmd, host, user, port): |
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92 '''Build argument list for ssh''' |
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93 args = user and ("%s@%s" % (user, host)) or host |
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94 return port and ("%s -p %s" % (args, port)) or args |
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95 |
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96 def isexec(f): |
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97 """check whether a file is executable""" |
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98 return (os.lstat(f).st_mode & 0o100 != 0) |
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99 |
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100 def setflags(f, l, x): |
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101 st = os.lstat(f) |
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102 s = st.st_mode |
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103 if l: |
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104 if not stat.S_ISLNK(s): |
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105 # switch file to link |
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106 fp = open(f) |
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107 data = fp.read() |
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108 fp.close() |
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109 unlink(f) |
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110 try: |
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111 os.symlink(data, f) |
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112 except OSError: |
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113 # failed to make a link, rewrite file |
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114 fp = open(f, "w") |
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115 fp.write(data) |
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116 fp.close() |
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117 # no chmod needed at this point |
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118 return |
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119 if stat.S_ISLNK(s): |
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120 # switch link to file |
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121 data = os.readlink(f) |
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122 unlink(f) |
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123 fp = open(f, "w") |
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124 fp.write(data) |
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125 fp.close() |
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126 s = 0o666 & ~umask # avoid restatting for chmod |
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127 |
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128 sx = s & 0o100 |
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129 if st.st_nlink > 1 and bool(x) != bool(sx): |
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130 # the file is a hardlink, break it |
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131 with open(f, "rb") as fp: |
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132 data = fp.read() |
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133 unlink(f) |
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134 with open(f, "wb") as fp: |
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135 fp.write(data) |
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136 |
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137 if x and not sx: |
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138 # Turn on +x for every +r bit when making a file executable |
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139 # and obey umask. |
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140 os.chmod(f, s | (s & 0o444) >> 2 & ~umask) |
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141 elif not x and sx: |
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142 # Turn off all +x bits |
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143 os.chmod(f, s & 0o666) |
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144 |
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145 def copymode(src, dst, mode=None): |
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146 '''Copy the file mode from the file at path src to dst. |
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147 If src doesn't exist, we're using mode instead. If mode is None, we're |
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148 using umask.''' |
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149 try: |
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150 st_mode = os.lstat(src).st_mode & 0o777 |
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151 except OSError as inst: |
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152 if inst.errno != errno.ENOENT: |
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153 raise |
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154 st_mode = mode |
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155 if st_mode is None: |
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156 st_mode = ~umask |
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157 st_mode &= 0o666 |
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158 os.chmod(dst, st_mode) |
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159 |
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160 def checkexec(path): |
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161 """ |
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162 Check whether the given path is on a filesystem with UNIX-like exec flags |
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163 |
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164 Requires a directory (like /foo/.hg) |
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165 """ |
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166 |
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167 # VFAT on some Linux versions can flip mode but it doesn't persist |
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168 # a FS remount. Frequently we can detect it if files are created |
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169 # with exec bit on. |
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170 |
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171 try: |
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172 EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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173 cachedir = os.path.join(path, '.hg', 'cache') |
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174 if os.path.isdir(cachedir): |
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175 checkisexec = os.path.join(cachedir, 'checkisexec') |
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176 checknoexec = os.path.join(cachedir, 'checknoexec') |
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177 |
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178 try: |
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179 m = os.stat(checkisexec).st_mode |
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180 except OSError as e: |
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181 if e.errno != errno.ENOENT: |
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182 raise |
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183 # checkisexec does not exist - fall through ... |
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184 else: |
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185 # checkisexec exists, check if it actually is exec |
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186 if m & EXECFLAGS != 0: |
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187 # ensure checkisexec exists, check it isn't exec |
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188 try: |
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189 m = os.stat(checknoexec).st_mode |
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190 except OSError as e: |
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191 if e.errno != errno.ENOENT: |
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192 raise |
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193 open(checknoexec, 'w').close() # might fail |
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194 m = os.stat(checknoexec).st_mode |
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195 if m & EXECFLAGS == 0: |
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196 # check-exec is exec and check-no-exec is not exec |
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197 return True |
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198 # checknoexec exists but is exec - delete it |
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199 unlink(checknoexec) |
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200 # checkisexec exists but is not exec - delete it |
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201 unlink(checkisexec) |
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202 |
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203 # check using one file, leave it as checkisexec |
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204 checkdir = cachedir |
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205 else: |
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206 # check directly in path and don't leave checkisexec behind |
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207 checkdir = path |
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208 checkisexec = None |
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209 fh, fn = tempfile.mkstemp(dir=checkdir, prefix='hg-checkexec-') |
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210 try: |
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211 os.close(fh) |
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212 m = os.stat(fn).st_mode |
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213 if m & EXECFLAGS == 0: |
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214 os.chmod(fn, m & 0o777 | EXECFLAGS) |
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215 if os.stat(fn).st_mode & EXECFLAGS != 0: |
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216 if checkisexec is not None: |
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217 os.rename(fn, checkisexec) |
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218 fn = None |
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219 return True |
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220 finally: |
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221 if fn is not None: |
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222 unlink(fn) |
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223 except (IOError, OSError): |
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224 # we don't care, the user probably won't be able to commit anyway |
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225 return False |
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226 |
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227 def checklink(path): |
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228 """check whether the given path is on a symlink-capable filesystem""" |
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229 # mktemp is not racy because symlink creation will fail if the |
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230 # file already exists |
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231 while True: |
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232 cachedir = os.path.join(path, '.hg', 'cache') |
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233 checklink = os.path.join(cachedir, 'checklink') |
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234 # try fast path, read only |
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235 if os.path.islink(checklink): |
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236 return True |
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237 if os.path.isdir(cachedir): |
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238 checkdir = cachedir |
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239 else: |
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240 checkdir = path |
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241 cachedir = None |
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242 fscheckdir = pycompat.fsdecode(checkdir) |
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243 name = tempfile.mktemp(dir=fscheckdir, |
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244 prefix=r'checklink-') |
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245 name = pycompat.fsencode(name) |
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246 try: |
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247 fd = None |
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248 if cachedir is None: |
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249 fd = tempfile.NamedTemporaryFile(dir=fscheckdir, |
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250 prefix=r'hg-checklink-') |
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251 target = pycompat.fsencode(os.path.basename(fd.name)) |
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252 else: |
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253 # create a fixed file to link to; doesn't matter if it |
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254 # already exists. |
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255 target = 'checklink-target' |
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256 try: |
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257 open(os.path.join(cachedir, target), 'w').close() |
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258 except IOError as inst: |
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259 if inst[0] == errno.EACCES: |
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260 # If we can't write to cachedir, just pretend |
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261 # that the fs is readonly and by association |
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262 # that the fs won't support symlinks. This |
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263 # seems like the least dangerous way to avoid |
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264 # data loss. |
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265 return False |
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266 raise |
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267 try: |
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268 os.symlink(target, name) |
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269 if cachedir is None: |
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270 unlink(name) |
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271 else: |
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272 try: |
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273 os.rename(name, checklink) |
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274 except OSError: |
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275 unlink(name) |
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276 return True |
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277 except OSError as inst: |
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278 # link creation might race, try again |
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279 if inst[0] == errno.EEXIST: |
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280 continue |
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281 raise |
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282 finally: |
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283 if fd is not None: |
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284 fd.close() |
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285 except AttributeError: |
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286 return False |
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287 except OSError as inst: |
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288 # sshfs might report failure while successfully creating the link |
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289 if inst[0] == errno.EIO and os.path.exists(name): |
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290 unlink(name) |
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291 return False |
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292 |
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293 def checkosfilename(path): |
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294 '''Check that the base-relative path is a valid filename on this platform. |
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295 Returns None if the path is ok, or a UI string describing the problem.''' |
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296 pass # on posix platforms, every path is ok |
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297 |
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298 def setbinary(fd): |
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299 pass |
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300 |
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301 def pconvert(path): |
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302 return path |
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303 |
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304 def localpath(path): |
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305 return path |
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306 |
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307 def samefile(fpath1, fpath2): |
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308 """Returns whether path1 and path2 refer to the same file. This is only |
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309 guaranteed to work for files, not directories.""" |
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310 return os.path.samefile(fpath1, fpath2) |
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311 |
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312 def samedevice(fpath1, fpath2): |
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313 """Returns whether fpath1 and fpath2 are on the same device. This is only |
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314 guaranteed to work for files, not directories.""" |
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315 st1 = os.lstat(fpath1) |
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316 st2 = os.lstat(fpath2) |
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317 return st1.st_dev == st2.st_dev |
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318 |
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319 # os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
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320 def normcase(path): |
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321 return path.lower() |
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322 |
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323 # what normcase does to ASCII strings |
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324 normcasespec = encoding.normcasespecs.lower |
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325 # fallback normcase function for non-ASCII strings |
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326 normcasefallback = normcase |
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327 |
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328 if pycompat.sysplatform == 'darwin': |
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329 |
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330 def normcase(path): |
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331 ''' |
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332 Normalize a filename for OS X-compatible comparison: |
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333 - escape-encode invalid characters |
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334 - decompose to NFD |
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335 - lowercase |
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336 - omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] |
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337 |
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338 >>> normcase('UPPER') |
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339 'upper' |
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340 >>> normcase('Caf\xc3\xa9') |
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341 'cafe\\xcc\\x81' |
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342 >>> normcase('\xc3\x89') |
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343 'e\\xcc\\x81' |
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344 >>> normcase('\xb8\xca\xc3\xca\xbe\xc8.JPG') # issue3918 |
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345 '%b8%ca%c3\\xca\\xbe%c8.jpg' |
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346 ''' |
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347 |
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348 try: |
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349 return encoding.asciilower(path) # exception for non-ASCII |
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350 except UnicodeDecodeError: |
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351 return normcasefallback(path) |
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352 |
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353 normcasespec = encoding.normcasespecs.lower |
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354 |
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355 def normcasefallback(path): |
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356 try: |
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357 u = path.decode('utf-8') |
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358 except UnicodeDecodeError: |
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359 # OS X percent-encodes any bytes that aren't valid utf-8 |
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360 s = '' |
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361 pos = 0 |
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362 l = len(path) |
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363 while pos < l: |
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364 try: |
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365 c = encoding.getutf8char(path, pos) |
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366 pos += len(c) |
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367 except ValueError: |
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368 c = '%%%02X' % ord(path[pos]) |
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369 pos += 1 |
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370 s += c |
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371 |
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372 u = s.decode('utf-8') |
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373 |
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374 # Decompose then lowercase (HFS+ technote specifies lower) |
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375 enc = unicodedata.normalize('NFD', u).lower().encode('utf-8') |
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376 # drop HFS+ ignored characters |
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377 return encoding.hfsignoreclean(enc) |
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378 |
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379 if pycompat.sysplatform == 'cygwin': |
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380 # workaround for cygwin, in which mount point part of path is |
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381 # treated as case sensitive, even though underlying NTFS is case |
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382 # insensitive. |
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383 |
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384 # default mount points |
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385 cygwinmountpoints = sorted([ |
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386 "/usr/bin", |
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387 "/usr/lib", |
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388 "/cygdrive", |
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389 ], reverse=True) |
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390 |
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391 # use upper-ing as normcase as same as NTFS workaround |
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392 def normcase(path): |
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393 pathlen = len(path) |
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394 if (pathlen == 0) or (path[0] != pycompat.ossep): |
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395 # treat as relative |
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396 return encoding.upper(path) |
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397 |
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398 # to preserve case of mountpoint part |
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399 for mp in cygwinmountpoints: |
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400 if not path.startswith(mp): |
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401 continue |
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402 |
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403 mplen = len(mp) |
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404 if mplen == pathlen: # mount point itself |
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405 return mp |
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406 if path[mplen] == pycompat.ossep: |
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407 return mp + encoding.upper(path[mplen:]) |
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408 |
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409 return encoding.upper(path) |
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410 |
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411 normcasespec = encoding.normcasespecs.other |
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412 normcasefallback = normcase |
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413 |
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414 # Cygwin translates native ACLs to POSIX permissions, |
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415 # but these translations are not supported by native |
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416 # tools, so the exec bit tends to be set erroneously. |
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417 # Therefore, disable executable bit access on Cygwin. |
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418 def checkexec(path): |
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419 return False |
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|
420 |
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421 # Similarly, Cygwin's symlink emulation is likely to create |
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422 # problems when Mercurial is used from both Cygwin and native |
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423 # Windows, with other native tools, or on shared volumes |
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424 def checklink(path): |
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425 return False |
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426 |
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427 _needsshellquote = None |
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428 def shellquote(s): |
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429 if pycompat.sysplatform == 'OpenVMS': |
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430 return '"%s"' % s |
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431 global _needsshellquote |
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432 if _needsshellquote is None: |
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433 _needsshellquote = re.compile(br'[^a-zA-Z0-9._/+-]').search |
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|
434 if s and not _needsshellquote(s): |
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435 # "s" shouldn't have to be quoted |
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436 return s |
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437 else: |
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438 return "'%s'" % s.replace("'", "'\\''") |
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439 |
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440 def quotecommand(cmd): |
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441 return cmd |
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442 |
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|
443 def popen(command, mode='r'): |
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Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
444 return os.popen(command, mode) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
445 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
446 def testpid(pid): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
447 '''return False if pid dead, True if running or not sure''' |
30642
e995f00a9e9a
py3: replace sys.platform with pycompat.sysplatform (part 2 of 2)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30641
diff
changeset
|
448 if pycompat.sysplatform == 'OpenVMS': |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
449 return True |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
450 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
451 os.kill(pid, 0) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
452 return True |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
453 except OSError as inst: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
454 return inst.errno != errno.ESRCH |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
455 |
14234
600e64004eb5
rename explain_exit to explainexit
Adrian Buehlmann <adrian@cadifra.com>
parents:
14233
diff
changeset
|
456 def explainexit(code): |
9517
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
457 """return a 2-tuple (desc, code) describing a subprocess status |
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
458 (codes from kill are negative - not os.system/wait encoding)""" |
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
459 if code >= 0: |
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
460 return _("exited with status %d") % code, code |
4368f582c806
util.system: Use subprocess instead of os.system
Mads Kiilerich <mads@kiilerich.com>
parents:
9238
diff
changeset
|
461 return _("killed by signal %d") % -code, -code |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
462 |
8657
3fa92c618624
posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents:
8614
diff
changeset
|
463 def isowner(st): |
3fa92c618624
posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents:
8614
diff
changeset
|
464 """Return True if the stat object st is from the current user.""" |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
465 return st.st_uid == os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
466 |
14271
4030630fb59c
rename util.find_exe to findexe
Adrian Buehlmann <adrian@cadifra.com>
parents:
14237
diff
changeset
|
467 def findexe(command): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
468 '''Find executable for command searching like which does. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
469 If command is a basename then PATH is searched for command. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
470 PATH isn't searched if command is an absolute or relative path. |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
471 If command isn't found None is returned.''' |
30641
16b5df5792a8
py3: replace sys.platform with pycompat.sysplatform (part 1 of 2)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30634
diff
changeset
|
472 if pycompat.sysplatform == 'OpenVMS': |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
473 return command |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
474 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
475 def findexisting(executable): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
476 'Will return executable if existing file' |
15499
58f96703a9ab
posix: fix findexe() to check for file type and access
Marc-Antoine Ruel <maruel@google.com>
parents:
15488
diff
changeset
|
477 if os.path.isfile(executable) and os.access(executable, os.X_OK): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
478 return executable |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
479 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
480 |
30614
cfe66dcf45c0
py3: replace os.sep with pycompat.ossep (part 2 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30612
diff
changeset
|
481 if pycompat.ossep in command: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
482 return findexisting(command) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
483 |
30641
16b5df5792a8
py3: replace sys.platform with pycompat.sysplatform (part 1 of 2)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30634
diff
changeset
|
484 if pycompat.sysplatform == 'plan9': |
16383
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16241
diff
changeset
|
485 return findexisting(os.path.join('/bin', command)) |
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16241
diff
changeset
|
486 |
30634
ad15646dc61c
py3: replace os.environ with encoding.environ (part 1 of 5)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30614
diff
changeset
|
487 for path in encoding.environ.get('PATH', '').split(pycompat.ospathsep): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
488 executable = findexisting(os.path.join(path, command)) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
489 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
|
490 return executable |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
491 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
492 |
14237
4d684d8210a1
rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents:
14235
diff
changeset
|
493 def setsignalhandler(): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
494 pass |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
495 |
32291
bd872f64a8ba
cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents:
32129
diff
changeset
|
496 _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
|
497 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
498 def statfiles(files): |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
499 '''Stat each file in files. Yield each stat, or None if a file does not |
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
500 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
|
501 lstat = os.lstat |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
502 getkind = stat.S_IFMT |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
503 for nf in files: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
504 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
505 st = lstat(nf) |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
506 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
|
507 st = None |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
508 except OSError as err: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
509 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
|
510 raise |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
511 st = None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
512 yield st |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
513 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
514 def getuser(): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
515 '''return name of current user''' |
32129
f0ea0f642627
py3: make posix.getuser return a bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
31539
diff
changeset
|
516 return pycompat.fsencode(getpass.getuser()) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
517 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
518 def username(uid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
519 """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
|
520 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
521 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
|
522 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
523 if uid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
524 uid = os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
525 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
526 return pwd.getpwuid(uid)[0] |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
527 except KeyError: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
528 return str(uid) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
529 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
530 def groupname(gid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
531 """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
|
532 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
533 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
|
534 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
535 if gid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
536 gid = os.getgid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
537 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
538 return grp.getgrgid(gid)[0] |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
539 except KeyError: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
540 return str(gid) |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
541 |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
542 def groupmembers(name): |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
543 """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
|
544 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
|
545 """ |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
546 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
|
547 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
548 def spawndetached(args): |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
549 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
|
550 args[0], args) |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
551 |
10239
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
552 def gethgcmd(): |
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
553 return sys.argv[:1] |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
554 |
14908
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
555 def makedir(path, notindexed): |
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
556 os.mkdir(path) |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
557 |
14910
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
558 def lookupreg(key, name=None, scope=None): |
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
559 return None |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
560 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
561 def hidewindow(): |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
562 """Hide current shell window. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
563 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
564 Used to hide the window opened when starting asynchronous |
5b39503157fd
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565 child process under Windows, unneeded on other systems. |
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566 """ |
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|
567 pass |
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Adrian Buehlmann <adrian@cadifra.com>
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568 |
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2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
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|
569 class cachestat(object): |
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570 def __init__(self, path): |
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posix, windows: introduce cachestat
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571 self.stat = os.stat(path) |
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|
572 |
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573 def cacheable(self): |
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574 return bool(self.stat.st_ino) |
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575 |
15791
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|
576 __hash__ = object.__hash__ |
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Martin Geisler <mg@aragost.com>
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|
577 |
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578 def __eq__(self, other): |
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parents:
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579 try: |
18442
ecba9b0e7672
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parents:
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580 # Only dev, ino, size, mtime and atime are likely to change. Out |
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581 # of these, we shouldn't compare atime but should compare the |
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582 # rest. However, one of the other fields changing indicates |
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posix: don't compare atime when determining if a file has changed
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583 # something fishy going on, so return False if anything but atime |
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|
584 # changes. |
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585 return (self.stat.st_mode == other.stat.st_mode and |
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586 self.stat.st_ino == other.stat.st_ino and |
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587 self.stat.st_dev == other.stat.st_dev and |
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|
588 self.stat.st_nlink == other.stat.st_nlink and |
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|
589 self.stat.st_uid == other.stat.st_uid and |
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parents:
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diff
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|
590 self.stat.st_gid == other.stat.st_gid and |
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parents:
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diff
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|
591 self.stat.st_size == other.stat.st_size and |
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|
592 self.stat.st_mtime == other.stat.st_mtime and |
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|
593 self.stat.st_ctime == other.stat.st_ctime) |
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|
594 except AttributeError: |
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|
595 return False |
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|
596 |
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|
597 def __ne__(self, other): |
2aa3e07b2f07
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598 return not self == other |
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|
599 |
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parents:
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|
600 def executablepath(): |
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|
601 return None # available on Windows only |
18097
ae54cff742e2
posix: move server side of unix domain sockets out of inotify
Bryan O'Sullivan <bryano@fb.com>
parents:
18017
diff
changeset
|
602 |
18868
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
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diff
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|
603 def statislink(st): |
cafa447a7d3b
util: add functions to check symlink/exec bits
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604 '''check whether a stat result is a symlink''' |
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parents:
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diff
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|
605 return st and stat.S_ISLNK(st.st_mode) |
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diff
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|
606 |
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diff
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|
607 def statisexec(st): |
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diff
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|
608 '''check whether a stat result is an executable file''' |
25658
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|
609 return st and (st.st_mode & 0o100 != 0) |
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610 |
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611 def poll(fds): |
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612 """block until something happens on any file descriptor |
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613 |
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614 This is a generic helper that will check for any activity |
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615 (read, write. exception) and return the list of touched files. |
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616 |
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617 In unsupported cases, it will raise a NotImplementedError""" |
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|
618 try: |
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619 while True: |
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620 try: |
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|
621 res = select.select(fds, fds, fds) |
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622 break |
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623 except select.error as inst: |
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624 if inst.args[0] == errno.EINTR: |
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625 continue |
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|
626 raise |
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627 except ValueError: # out of range file descriptor |
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628 raise NotImplementedError() |
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629 return sorted(list(set(sum(res, [])))) |
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|
630 |
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|
631 def readpipe(pipe): |
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632 """Read all available data from a pipe.""" |
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633 # We can't fstat() a pipe because Linux will always report 0. |
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634 # So, we set the pipe to non-blocking mode and read everything |
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635 # that's available. |
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|
636 flags = fcntl.fcntl(pipe, fcntl.F_GETFL) |
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|
637 flags |= os.O_NONBLOCK |
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|
638 oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) |
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|
639 |
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|
640 try: |
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|
641 chunks = [] |
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|
642 while True: |
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|
643 try: |
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|
644 s = pipe.read() |
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|
645 if not s: |
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|
646 break |
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647 chunks.append(s) |
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|
648 except IOError: |
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649 break |
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650 |
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|
651 return ''.join(chunks) |
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652 finally: |
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653 fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) |
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654 |
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655 def bindunixsocket(sock, path): |
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656 """Bind the UNIX domain socket to the specified path""" |
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657 # use relative path instead of full path at bind() if possible, since |
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658 # AF_UNIX path has very small length limit (107 chars) on common |
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659 # platforms (see sys/un.h) |
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|
660 dirname, basename = os.path.split(path) |
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661 bakwdfd = None |
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662 if dirname: |
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|
663 bakwdfd = os.open('.', os.O_DIRECTORY) |
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664 os.chdir(dirname) |
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665 sock.bind(basename) |
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|
666 if bakwdfd: |
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27380
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667 os.fchdir(bakwdfd) |
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|
668 os.close(bakwdfd) |