Mercurial > hg
annotate mercurial/posix.py @ 41722:37b33c34bf4f
templatekw: add a {negrev} keyword
Revision numbers are getting much maligned for two reasons: they are
too long in large repos and users get confused by their local-only
nature. It just occurred to me that negative revision numbers avoid
both of those problems. Since negative revision numbers change
whenever the repo changes, it's much more obvious that they are a
local-only convenience. Additionally, for the recent commits that we
usually care about the most, negative revision numbers are always near
zero.
This commit adds a negrev templatekw to more easily expose negative
revision numbers. It's not easy to reliably produce this output with
existing keywords due to hidden commits while at the same time
ensuring good performance.
author | Jordi Gutiérrez Hermoso <jordigh@octave.org> |
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date | Fri, 15 Feb 2019 14:43:31 -0500 |
parents | 3ef8bec91465 |
children | faa04f45b5fe |
rev | line source |
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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 |
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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 error, |
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27 policy, |
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28 pycompat, |
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29 ) |
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30 |
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31 osutil = policy.importmod(r'osutil') |
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32 |
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33 posixfile = open |
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34 normpath = os.path.normpath |
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35 samestat = os.path.samestat |
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36 try: |
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37 oslink = os.link |
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38 except AttributeError: |
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39 # Some platforms build Python without os.link on systems that are |
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40 # vaguely unix-like but don't have hardlink support. For those |
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41 # poor souls, just say we tried and that it failed so we fall back |
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42 # to copies. |
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43 def oslink(src, dst): |
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44 raise OSError(errno.EINVAL, |
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45 'hardlinks not supported: %s to %s' % (src, dst)) |
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46 readlink = os.readlink |
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47 unlink = os.unlink |
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48 rename = os.rename |
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49 removedirs = os.removedirs |
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50 expandglobs = False |
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51 |
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52 umask = os.umask(0) |
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53 os.umask(umask) |
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54 |
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55 def split(p): |
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56 '''Same as posixpath.split, but faster |
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57 |
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58 >>> import posixpath |
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59 >>> for f in [b'/absolute/path/to/file', |
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60 ... b'relative/path/to/file', |
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61 ... b'file_alone', |
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62 ... b'path/to/directory/', |
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63 ... b'/multiple/path//separators', |
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64 ... b'/file_at_root', |
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65 ... b'///multiple_leading_separators_at_root', |
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66 ... b'']: |
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67 ... assert split(f) == posixpath.split(f), f |
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68 ''' |
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69 ht = p.rsplit('/', 1) |
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70 if len(ht) == 1: |
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71 return '', p |
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72 nh = ht[0].rstrip('/') |
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73 if nh: |
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74 return nh, ht[1] |
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75 return ht[0] + '/', ht[1] |
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76 |
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77 def openhardlinks(): |
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78 '''return true if it is safe to hold open file handles to hardlinks''' |
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79 return True |
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80 |
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81 def nlinks(name): |
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82 '''return number of hardlinks for the given file''' |
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83 return os.lstat(name).st_nlink |
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84 |
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85 def parsepatchoutput(output_line): |
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86 """parses the output produced by patch and returns the filename""" |
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87 pf = output_line[14:] |
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88 if pycompat.sysplatform == 'OpenVMS': |
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89 if pf[0] == '`': |
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90 pf = pf[1:-1] # Remove the quotes |
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91 else: |
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92 if pf.startswith("'") and pf.endswith("'") and " " in pf: |
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93 pf = pf[1:-1] # Remove the quotes |
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94 return pf |
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95 |
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96 def sshargs(sshcmd, host, user, port): |
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97 '''Build argument list for ssh''' |
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98 args = user and ("%s@%s" % (user, host)) or host |
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99 if '-' in args[:1]: |
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100 raise error.Abort( |
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101 _('illegal ssh hostname or username starting with -: %s') % args) |
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102 args = shellquote(args) |
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103 if port: |
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104 args = '-p %s %s' % (shellquote(port), args) |
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105 return args |
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106 |
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107 def isexec(f): |
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108 """check whether a file is executable""" |
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109 return (os.lstat(f).st_mode & 0o100 != 0) |
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110 |
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111 def setflags(f, l, x): |
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112 st = os.lstat(f) |
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113 s = st.st_mode |
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114 if l: |
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115 if not stat.S_ISLNK(s): |
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116 # switch file to link |
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117 fp = open(f, 'rb') |
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118 data = fp.read() |
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119 fp.close() |
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120 unlink(f) |
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121 try: |
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122 os.symlink(data, f) |
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123 except OSError: |
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124 # failed to make a link, rewrite file |
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125 fp = open(f, "wb") |
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126 fp.write(data) |
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127 fp.close() |
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128 # no chmod needed at this point |
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129 return |
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130 if stat.S_ISLNK(s): |
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131 # switch link to file |
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132 data = os.readlink(f) |
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133 unlink(f) |
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134 fp = open(f, "wb") |
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135 fp.write(data) |
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136 fp.close() |
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137 s = 0o666 & ~umask # avoid restatting for chmod |
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138 |
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139 sx = s & 0o100 |
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140 if st.st_nlink > 1 and bool(x) != bool(sx): |
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141 # the file is a hardlink, break it |
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142 with open(f, "rb") as fp: |
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143 data = fp.read() |
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144 unlink(f) |
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145 with open(f, "wb") as fp: |
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146 fp.write(data) |
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147 |
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148 if x and not sx: |
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149 # Turn on +x for every +r bit when making a file executable |
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150 # and obey umask. |
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151 os.chmod(f, s | (s & 0o444) >> 2 & ~umask) |
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152 elif not x and sx: |
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153 # Turn off all +x bits |
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154 os.chmod(f, s & 0o666) |
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155 |
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156 def copymode(src, dst, mode=None, enforcewritable=False): |
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157 '''Copy the file mode from the file at path src to dst. |
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158 If src doesn't exist, we're using mode instead. If mode is None, we're |
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159 using umask.''' |
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160 try: |
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161 st_mode = os.lstat(src).st_mode & 0o777 |
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162 except OSError as inst: |
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163 if inst.errno != errno.ENOENT: |
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164 raise |
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165 st_mode = mode |
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166 if st_mode is None: |
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167 st_mode = ~umask |
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168 st_mode &= 0o666 |
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169 |
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170 new_mode = st_mode |
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171 |
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172 if enforcewritable: |
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173 new_mode |= stat.S_IWUSR |
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174 |
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175 os.chmod(dst, new_mode) |
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176 |
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177 def checkexec(path): |
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178 """ |
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179 Check whether the given path is on a filesystem with UNIX-like exec flags |
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180 |
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181 Requires a directory (like /foo/.hg) |
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182 """ |
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183 |
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184 # VFAT on some Linux versions can flip mode but it doesn't persist |
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185 # a FS remount. Frequently we can detect it if files are created |
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186 # with exec bit on. |
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187 |
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188 try: |
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189 EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH |
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190 basedir = os.path.join(path, '.hg') |
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191 cachedir = os.path.join(basedir, 'wcache') |
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192 storedir = os.path.join(basedir, 'store') |
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193 if not os.path.exists(cachedir): |
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194 try: |
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195 # we want to create the 'cache' directory, not the '.hg' one. |
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196 # Automatically creating '.hg' directory could silently spawn |
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197 # invalid Mercurial repositories. That seems like a bad idea. |
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198 os.mkdir(cachedir) |
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199 if os.path.exists(storedir): |
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200 copymode(storedir, cachedir) |
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201 else: |
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202 copymode(basedir, cachedir) |
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203 except (IOError, OSError): |
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204 # we other fallback logic triggers |
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205 pass |
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206 if os.path.isdir(cachedir): |
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207 checkisexec = os.path.join(cachedir, 'checkisexec') |
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208 checknoexec = os.path.join(cachedir, 'checknoexec') |
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209 |
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210 try: |
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211 m = os.stat(checkisexec).st_mode |
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212 except OSError as e: |
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213 if e.errno != errno.ENOENT: |
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214 raise |
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215 # checkisexec does not exist - fall through ... |
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216 else: |
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217 # checkisexec exists, check if it actually is exec |
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218 if m & EXECFLAGS != 0: |
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219 # ensure checkisexec exists, check it isn't exec |
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220 try: |
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221 m = os.stat(checknoexec).st_mode |
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222 except OSError as e: |
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223 if e.errno != errno.ENOENT: |
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224 raise |
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225 open(checknoexec, 'w').close() # might fail |
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226 m = os.stat(checknoexec).st_mode |
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227 if m & EXECFLAGS == 0: |
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228 # check-exec is exec and check-no-exec is not exec |
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229 return True |
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230 # checknoexec exists but is exec - delete it |
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231 unlink(checknoexec) |
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232 # checkisexec exists but is not exec - delete it |
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233 unlink(checkisexec) |
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234 |
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235 # check using one file, leave it as checkisexec |
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236 checkdir = cachedir |
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237 else: |
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238 # check directly in path and don't leave checkisexec behind |
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239 checkdir = path |
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240 checkisexec = None |
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241 fh, fn = pycompat.mkstemp(dir=checkdir, prefix='hg-checkexec-') |
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242 try: |
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243 os.close(fh) |
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244 m = os.stat(fn).st_mode |
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245 if m & EXECFLAGS == 0: |
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246 os.chmod(fn, m & 0o777 | EXECFLAGS) |
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247 if os.stat(fn).st_mode & EXECFLAGS != 0: |
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248 if checkisexec is not None: |
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249 os.rename(fn, checkisexec) |
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250 fn = None |
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251 return True |
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252 finally: |
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253 if fn is not None: |
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254 unlink(fn) |
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255 except (IOError, OSError): |
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256 # we don't care, the user probably won't be able to commit anyway |
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257 return False |
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258 |
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259 def checklink(path): |
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260 """check whether the given path is on a symlink-capable filesystem""" |
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261 # mktemp is not racy because symlink creation will fail if the |
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262 # file already exists |
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263 while True: |
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264 cachedir = os.path.join(path, '.hg', 'wcache') |
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265 checklink = os.path.join(cachedir, 'checklink') |
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266 # try fast path, read only |
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267 if os.path.islink(checklink): |
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268 return True |
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269 if os.path.isdir(cachedir): |
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270 checkdir = cachedir |
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271 else: |
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272 checkdir = path |
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273 cachedir = None |
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274 name = tempfile.mktemp(dir=pycompat.fsdecode(checkdir), |
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275 prefix=r'checklink-') |
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276 name = pycompat.fsencode(name) |
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277 try: |
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278 fd = None |
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279 if cachedir is None: |
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280 fd = pycompat.namedtempfile(dir=checkdir, |
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281 prefix='hg-checklink-') |
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282 target = os.path.basename(fd.name) |
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283 else: |
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284 # create a fixed file to link to; doesn't matter if it |
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285 # already exists. |
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286 target = 'checklink-target' |
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287 try: |
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288 fullpath = os.path.join(cachedir, target) |
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289 open(fullpath, 'w').close() |
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290 except IOError as inst: |
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291 if inst[0] == errno.EACCES: |
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292 # If we can't write to cachedir, just pretend |
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293 # that the fs is readonly and by association |
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294 # that the fs won't support symlinks. This |
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295 # seems like the least dangerous way to avoid |
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296 # data loss. |
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297 return False |
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298 raise |
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299 try: |
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300 os.symlink(target, name) |
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301 if cachedir is None: |
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302 unlink(name) |
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303 else: |
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304 try: |
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305 os.rename(name, checklink) |
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306 except OSError: |
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307 unlink(name) |
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308 return True |
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309 except OSError as inst: |
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310 # link creation might race, try again |
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311 if inst.errno == errno.EEXIST: |
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312 continue |
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313 raise |
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314 finally: |
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315 if fd is not None: |
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316 fd.close() |
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317 except AttributeError: |
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318 return False |
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319 except OSError as inst: |
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320 # sshfs might report failure while successfully creating the link |
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321 if inst.errno == errno.EIO and os.path.exists(name): |
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322 unlink(name) |
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323 return False |
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324 |
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325 def checkosfilename(path): |
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326 '''Check that the base-relative path is a valid filename on this platform. |
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327 Returns None if the path is ok, or a UI string describing the problem.''' |
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328 return None # on posix platforms, every path is ok |
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329 |
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330 def getfsmountpoint(dirpath): |
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331 '''Get the filesystem mount point from a directory (best-effort) |
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332 |
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333 Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
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334 ''' |
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335 return getattr(osutil, 'getfsmountpoint', lambda x: None)(dirpath) |
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336 |
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337 def getfstype(dirpath): |
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338 '''Get the filesystem type name from a directory (best-effort) |
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339 |
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340 Returns None if we are unsure. Raises OSError on ENOENT, EPERM, etc. |
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341 ''' |
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342 return getattr(osutil, 'getfstype', lambda x: None)(dirpath) |
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343 |
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344 def setbinary(fd): |
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345 pass |
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346 |
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347 def pconvert(path): |
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348 return path |
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349 |
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350 def localpath(path): |
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351 return path |
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352 |
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353 def samefile(fpath1, fpath2): |
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354 """Returns whether path1 and path2 refer to the same file. This is only |
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355 guaranteed to work for files, not directories.""" |
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356 return os.path.samefile(fpath1, fpath2) |
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357 |
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358 def samedevice(fpath1, fpath2): |
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359 """Returns whether fpath1 and fpath2 are on the same device. This is only |
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360 guaranteed to work for files, not directories.""" |
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361 st1 = os.lstat(fpath1) |
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362 st2 = os.lstat(fpath2) |
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363 return st1.st_dev == st2.st_dev |
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364 |
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365 # os.path.normcase is a no-op, which doesn't help us on non-native filesystems |
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366 def normcase(path): |
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367 return path.lower() |
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368 |
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369 # what normcase does to ASCII strings |
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370 normcasespec = encoding.normcasespecs.lower |
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371 # fallback normcase function for non-ASCII strings |
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372 normcasefallback = normcase |
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373 |
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375 |
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376 def normcase(path): |
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377 ''' |
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378 Normalize a filename for OS X-compatible comparison: |
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379 - escape-encode invalid characters |
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380 - decompose to NFD |
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381 - lowercase |
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382 - omit ignored characters [200c-200f, 202a-202e, 206a-206f,feff] |
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383 |
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384 >>> normcase(b'UPPER') |
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385 'upper' |
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386 >>> normcase(b'Caf\\xc3\\xa9') |
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387 'cafe\\xcc\\x81' |
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388 >>> normcase(b'\\xc3\\x89') |
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389 'e\\xcc\\x81' |
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390 >>> normcase(b'\\xb8\\xca\\xc3\\xca\\xbe\\xc8.JPG') # issue3918 |
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391 '%b8%ca%c3\\xca\\xbe%c8.jpg' |
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392 ''' |
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393 |
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394 try: |
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395 return encoding.asciilower(path) # exception for non-ASCII |
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396 except UnicodeDecodeError: |
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397 return normcasefallback(path) |
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398 |
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399 normcasespec = encoding.normcasespecs.lower |
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400 |
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401 def normcasefallback(path): |
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402 try: |
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403 u = path.decode('utf-8') |
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404 except UnicodeDecodeError: |
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405 # OS X percent-encodes any bytes that aren't valid utf-8 |
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406 s = '' |
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407 pos = 0 |
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408 l = len(path) |
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409 while pos < l: |
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410 try: |
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411 c = encoding.getutf8char(path, pos) |
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412 pos += len(c) |
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413 except ValueError: |
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414 c = '%%%02X' % ord(path[pos:pos + 1]) |
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415 pos += 1 |
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416 s += c |
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417 |
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418 u = s.decode('utf-8') |
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419 |
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420 # Decompose then lowercase (HFS+ technote specifies lower) |
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421 enc = unicodedata.normalize(r'NFD', u).lower().encode('utf-8') |
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422 # drop HFS+ ignored characters |
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423 return encoding.hfsignoreclean(enc) |
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424 |
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425 if pycompat.sysplatform == 'cygwin': |
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426 # workaround for cygwin, in which mount point part of path is |
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427 # treated as case sensitive, even though underlying NTFS is case |
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428 # insensitive. |
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429 |
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430 # default mount points |
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431 cygwinmountpoints = sorted([ |
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432 "/usr/bin", |
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433 "/usr/lib", |
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434 "/cygdrive", |
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435 ], reverse=True) |
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436 |
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437 # use upper-ing as normcase as same as NTFS workaround |
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438 def normcase(path): |
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439 pathlen = len(path) |
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440 if (pathlen == 0) or (path[0] != pycompat.ossep): |
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441 # treat as relative |
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442 return encoding.upper(path) |
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443 |
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444 # to preserve case of mountpoint part |
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cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
445 for mp in cygwinmountpoints: |
c51c9dc13a58
cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
446 if not path.startswith(mp): |
c51c9dc13a58
cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
447 continue |
c51c9dc13a58
cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
448 |
c51c9dc13a58
cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
449 mplen = len(mp) |
c51c9dc13a58
cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
450 if mplen == pathlen: # mount point itself |
c51c9dc13a58
cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
451 return mp |
30614
cfe66dcf45c0
py3: replace os.sep with pycompat.ossep (part 2 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30612
diff
changeset
|
452 if path[mplen] == pycompat.ossep: |
17203
0cb55b5c19a3
util, posix: eliminate encodinglower and encodingupper
Adrian Buehlmann <adrian@cadifra.com>
parents:
16726
diff
changeset
|
453 return mp + encoding.upper(path[mplen:]) |
15711
c51c9dc13a58
cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
454 |
17203
0cb55b5c19a3
util, posix: eliminate encodinglower and encodingupper
Adrian Buehlmann <adrian@cadifra.com>
parents:
16726
diff
changeset
|
455 return encoding.upper(path) |
15711
c51c9dc13a58
cygwin: add cygwin specific normcase logic
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
15672
diff
changeset
|
456 |
24596
75ea27f1711d
cygwin: define normcase spec and fallback
Siddharth Agarwal <sid0@fb.com>
parents:
24595
diff
changeset
|
457 normcasespec = encoding.normcasespecs.other |
75ea27f1711d
cygwin: define normcase spec and fallback
Siddharth Agarwal <sid0@fb.com>
parents:
24595
diff
changeset
|
458 normcasefallback = normcase |
75ea27f1711d
cygwin: define normcase spec and fallback
Siddharth Agarwal <sid0@fb.com>
parents:
24595
diff
changeset
|
459 |
16240
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
460 # Cygwin translates native ACLs to POSIX permissions, |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
461 # but these translations are not supported by native |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
462 # tools, so the exec bit tends to be set erroneously. |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
463 # Therefore, disable executable bit access on Cygwin. |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
464 def checkexec(path): |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
465 return False |
95e45abe7e8e
posix: ignore execution bit in cygwin (issue3301)
A. S. Budden <abudden@gmail.com>
parents:
15791
diff
changeset
|
466 |
16241
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
467 # Similarly, Cygwin's symlink emulation is likely to create |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
468 # problems when Mercurial is used from both Cygwin and native |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
469 # Windows, with other native tools, or on shared volumes |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
470 def checklink(path): |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
471 return False |
60cc3a0d2249
posix: disable cygwin's symlink emulation
Matt Mackall <mpm@selenic.com>
parents:
16240
diff
changeset
|
472 |
23683
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
473 _needsshellquote = None |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
474 def shellquote(s): |
30642
e995f00a9e9a
py3: replace sys.platform with pycompat.sysplatform (part 2 of 2)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30641
diff
changeset
|
475 if pycompat.sysplatform == 'OpenVMS': |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
476 return '"%s"' % s |
23683
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
477 global _needsshellquote |
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
478 if _needsshellquote is None: |
31491
492c64afc54c
py3: make the regular expression bytes to prevent TypeError
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30697
diff
changeset
|
479 _needsshellquote = re.compile(br'[^a-zA-Z0-9._/+-]').search |
24108
d65ecb814fc0
shellquote: fix missing quotes for empty string
Yuya Nishihara <yuya@tcha.org>
parents:
23683
diff
changeset
|
480 if s and not _needsshellquote(s): |
23683
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
481 # "s" shouldn't have to be quoted |
5edb387158a1
posix: quote the specified string only when it may have to be quoted
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
23597
diff
changeset
|
482 return s |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
483 else: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
484 return "'%s'" % s.replace("'", "'\\''") |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
485 |
36415
0cb09c322647
util: factor out shellsplit() function
Yuya Nishihara <yuya@tcha.org>
parents:
36303
diff
changeset
|
486 def shellsplit(s): |
0cb09c322647
util: factor out shellsplit() function
Yuya Nishihara <yuya@tcha.org>
parents:
36303
diff
changeset
|
487 """Parse a command string in POSIX shell way (best-effort)""" |
0cb09c322647
util: factor out shellsplit() function
Yuya Nishihara <yuya@tcha.org>
parents:
36303
diff
changeset
|
488 return pycompat.shlexsplit(s, posix=True) |
0cb09c322647
util: factor out shellsplit() function
Yuya Nishihara <yuya@tcha.org>
parents:
36303
diff
changeset
|
489 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
490 def quotecommand(cmd): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
491 return cmd |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
492 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
493 def testpid(pid): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
494 '''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
|
495 if pycompat.sysplatform == 'OpenVMS': |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
496 return True |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
497 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
498 os.kill(pid, 0) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
499 return True |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
500 except OSError as inst: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
501 return inst.errno != errno.ESRCH |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
502 |
8657
3fa92c618624
posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents:
8614
diff
changeset
|
503 def isowner(st): |
3fa92c618624
posix: do not use fstat in isowner
Martin Geisler <mg@lazybytes.net>
parents:
8614
diff
changeset
|
504 """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
|
505 return st.st_uid == os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
506 |
14271
4030630fb59c
rename util.find_exe to findexe
Adrian Buehlmann <adrian@cadifra.com>
parents:
14237
diff
changeset
|
507 def findexe(command): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
508 '''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
|
509 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
|
510 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
|
511 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
|
512 if pycompat.sysplatform == 'OpenVMS': |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
513 return command |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
514 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
515 def findexisting(executable): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
516 '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
|
517 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
|
518 return executable |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
519 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
520 |
30614
cfe66dcf45c0
py3: replace os.sep with pycompat.ossep (part 2 of 4)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30612
diff
changeset
|
521 if pycompat.ossep in command: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
522 return findexisting(command) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
523 |
30641
16b5df5792a8
py3: replace sys.platform with pycompat.sysplatform (part 1 of 2)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30634
diff
changeset
|
524 if pycompat.sysplatform == 'plan9': |
16383
f5dd179bfa4a
plan9: initial support for plan 9 from bell labs
Steven Stallion <sstallion@gmail.com>
parents:
16241
diff
changeset
|
525 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
|
526 |
30634
ad15646dc61c
py3: replace os.environ with encoding.environ (part 1 of 5)
Pulkit Goyal <7895pulkit@gmail.com>
parents:
30614
diff
changeset
|
527 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
|
528 executable = findexisting(os.path.join(path, command)) |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
529 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
|
530 return executable |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
531 return None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
532 |
14237
4d684d8210a1
rename util.set_signal_handler to setsignalhandler
Adrian Buehlmann <adrian@cadifra.com>
parents:
14235
diff
changeset
|
533 def setsignalhandler(): |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
534 pass |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
535 |
32291
bd872f64a8ba
cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents:
32129
diff
changeset
|
536 _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
|
537 |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
538 def statfiles(files): |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
539 '''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
|
540 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
|
541 lstat = os.lstat |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
542 getkind = stat.S_IFMT |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
543 for nf in files: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
544 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
545 st = lstat(nf) |
18017
74912fe3d718
dirstate: move file type filtering to its source
Bryan O'Sullivan <bryano@fb.com>
parents:
17560
diff
changeset
|
546 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
|
547 st = None |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25658
diff
changeset
|
548 except OSError as err: |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
549 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
|
550 raise |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
551 st = None |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
552 yield st |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
553 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
554 def getuser(): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
555 '''return name of current user''' |
32129
f0ea0f642627
py3: make posix.getuser return a bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
31539
diff
changeset
|
556 return pycompat.fsencode(getpass.getuser()) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
557 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
558 def username(uid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
559 """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
|
560 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
561 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
|
562 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
563 if uid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
564 uid = os.getuid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
565 try: |
38252
a4aa77b84efd
py3: make sure util.username() always returns bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
38166
diff
changeset
|
566 return pycompat.fsencode(pwd.getpwuid(uid)[0]) |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
567 except KeyError: |
38252
a4aa77b84efd
py3: make sure util.username() always returns bytes
Pulkit Goyal <7895pulkit@gmail.com>
parents:
38166
diff
changeset
|
568 return b'%d' % uid |
7890
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
569 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
570 def groupname(gid=None): |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
571 """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
|
572 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
573 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
|
574 |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
575 if gid is None: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
576 gid = os.getgid() |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
577 try: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
578 return grp.getgrgid(gid)[0] |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
579 except KeyError: |
e710f0f592b2
util: split out posix, windows, and win32 modules
Matt Mackall <mpm@selenic.com>
parents:
diff
changeset
|
580 return str(gid) |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
581 |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
582 def groupmembers(name): |
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
583 """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
|
584 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
|
585 """ |
41523
3ef8bec91465
py3: do a fsdecode(), fsencode() dance in posix.py
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41504
diff
changeset
|
586 name = pycompat.fsdecode(name) |
3ef8bec91465
py3: do a fsdecode(), fsencode() dance in posix.py
Pulkit Goyal <pulkit@yandex-team.ru>
parents:
41504
diff
changeset
|
587 return pycompat.rapply(pycompat.fsencode, list(grp.getgrnam(name).gr_mem)) |
11138
99eee847beaa
acl: grp module is not available on windows
Patrick Mezard <pmezard@gmail.com>
parents:
11011
diff
changeset
|
588 |
10237
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
589 def spawndetached(args): |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
590 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
|
591 args[0], args) |
2f7a38f336f4
serve: add and use portable spawnvp replacement
Patrick Mezard <pmezard@gmail.com>
parents:
10218
diff
changeset
|
592 |
10239
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
593 def gethgcmd(): |
8e4be44a676f
Find right hg command for detached process
Patrick Mezard <pmezard@gmail.com>
parents:
10237
diff
changeset
|
594 return sys.argv[:1] |
11010
18e81d42ee5c
util: fix default termwidth() under Windows
Patrick Mezard <pmezard@gmail.com>
parents:
10264
diff
changeset
|
595 |
14908
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
596 def makedir(path, notindexed): |
e2b5605501df
util: move "default" makedir to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14273
diff
changeset
|
597 os.mkdir(path) |
14909
c627fe32c923
util: move "default" unlinkpath to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14908
diff
changeset
|
598 |
14910
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
599 def lookupreg(key, name=None, scope=None): |
570ea0259b0a
util: move "default" lookupreg to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14909
diff
changeset
|
600 return None |
14911
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
601 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
602 def hidewindow(): |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
603 """Hide current shell window. |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
604 |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
605 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
|
606 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
|
607 """ |
5b39503157fd
util: move "default" hidewindow to posix.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
14910
diff
changeset
|
608 pass |
14926
4e7e63fc685a
util: eliminate wildcard imports
Adrian Buehlmann <adrian@cadifra.com>
parents:
14911
diff
changeset
|
609 |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
610 class cachestat(object): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
611 def __init__(self, path): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
612 self.stat = os.stat(path) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
613 |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
614 def cacheable(self): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
615 return bool(self.stat.st_ino) |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
616 |
15791
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
617 __hash__ = object.__hash__ |
a814f8fcc65a
Use explicit integer division
Martin Geisler <mg@aragost.com>
parents:
15711
diff
changeset
|
618 |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
619 def __eq__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
620 try: |
18442
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
621 # Only dev, ino, size, mtime and atime are likely to change. Out |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
622 # of these, we shouldn't compare atime but should compare the |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
623 # rest. However, one of the other fields changing indicates |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
624 # something fishy going on, so return False if anything but atime |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
625 # changes. |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
626 return (self.stat.st_mode == other.stat.st_mode and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
627 self.stat.st_ino == other.stat.st_ino and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
628 self.stat.st_dev == other.stat.st_dev and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
629 self.stat.st_nlink == other.stat.st_nlink and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
630 self.stat.st_uid == other.stat.st_uid and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
631 self.stat.st_gid == other.stat.st_gid and |
ecba9b0e7672
posix: don't compare atime when determining if a file has changed
Siddharth Agarwal <sid0@fb.com>
parents:
18288
diff
changeset
|
632 self.stat.st_size == other.stat.st_size and |
36781
ffa3026d4196
cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents:
36415
diff
changeset
|
633 self.stat[stat.ST_MTIME] == other.stat[stat.ST_MTIME] and |
ffa3026d4196
cleanup: use stat_result[stat.ST_MTIME] instead of stat_result.st_mtime
Augie Fackler <augie@google.com>
parents:
36415
diff
changeset
|
634 self.stat[stat.ST_CTIME] == other.stat[stat.ST_CTIME]) |
14927
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
635 except AttributeError: |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
636 return False |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
637 |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
638 def __ne__(self, other): |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
639 return not self == other |
2aa3e07b2f07
posix, windows: introduce cachestat
Idan Kamara <idankk86@gmail.com>
parents:
14926
diff
changeset
|
640 |
18868
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
641 def statislink(st): |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
642 '''check whether a stat result is a symlink''' |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
643 return st and stat.S_ISLNK(st.st_mode) |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
644 |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
645 def statisexec(st): |
cafa447a7d3b
util: add functions to check symlink/exec bits
Bryan O'Sullivan <bryano@fb.com>
parents:
18501
diff
changeset
|
646 '''check whether a stat result is an executable file''' |
25658
e93036747902
global: mass rewrite to use modern octal syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25420
diff
changeset
|
647 return st and (st.st_mode & 0o100 != 0) |
22245
234e4c24b980
platform: implement readpipe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20202
diff
changeset
|
648 |
25420
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
649 def poll(fds): |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
650 """block until something happens on any file descriptor |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
651 |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
652 This is a generic helper that will check for any activity |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
653 (read, write. exception) and return the list of touched files. |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
654 |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
655 In unsupported cases, it will raise a NotImplementedError""" |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
656 try: |
30654
5f33116cd787
posix: make poll() restart on interruption by signal (issue5452)
Yuya Nishihara <yuya@tcha.org>
parents:
29530
diff
changeset
|
657 while True: |
5f33116cd787
posix: make poll() restart on interruption by signal (issue5452)
Yuya Nishihara <yuya@tcha.org>
parents:
29530
diff
changeset
|
658 try: |
5f33116cd787
posix: make poll() restart on interruption by signal (issue5452)
Yuya Nishihara <yuya@tcha.org>
parents:
29530
diff
changeset
|
659 res = select.select(fds, fds, fds) |
5f33116cd787
posix: make poll() restart on interruption by signal (issue5452)
Yuya Nishihara <yuya@tcha.org>
parents:
29530
diff
changeset
|
660 break |
5f33116cd787
posix: make poll() restart on interruption by signal (issue5452)
Yuya Nishihara <yuya@tcha.org>
parents:
29530
diff
changeset
|
661 except select.error as inst: |
5f33116cd787
posix: make poll() restart on interruption by signal (issue5452)
Yuya Nishihara <yuya@tcha.org>
parents:
29530
diff
changeset
|
662 if inst.args[0] == errno.EINTR: |
5f33116cd787
posix: make poll() restart on interruption by signal (issue5452)
Yuya Nishihara <yuya@tcha.org>
parents:
29530
diff
changeset
|
663 continue |
5f33116cd787
posix: make poll() restart on interruption by signal (issue5452)
Yuya Nishihara <yuya@tcha.org>
parents:
29530
diff
changeset
|
664 raise |
25420
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
665 except ValueError: # out of range file descriptor |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
666 raise NotImplementedError() |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
667 return sorted(list(set(sum(res, [])))) |
c2ec81891502
util: add a simple poll utility
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24692
diff
changeset
|
668 |
22245
234e4c24b980
platform: implement readpipe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20202
diff
changeset
|
669 def readpipe(pipe): |
234e4c24b980
platform: implement readpipe()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20202
diff
changeset
|
670 """Read all available data from a pipe.""" |
22246
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
671 # We can't fstat() a pipe because Linux will always report 0. |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
672 # So, we set the pipe to non-blocking mode and read everything |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
673 # that's available. |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
674 flags = fcntl.fcntl(pipe, fcntl.F_GETFL) |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
changeset
|
675 flags |= os.O_NONBLOCK |
331cbf088c4c
posix: implement readpipe using non-blocking I/O (issue4336)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
22245
diff
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676 oldflags = fcntl.fcntl(pipe, fcntl.F_SETFL, flags) |
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677 |
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678 try: |
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679 chunks = [] |
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680 while True: |
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681 try: |
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682 s = pipe.read() |
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683 if not s: |
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684 break |
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685 chunks.append(s) |
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686 except IOError: |
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687 break |
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688 |
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689 return ''.join(chunks) |
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690 finally: |
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691 fcntl.fcntl(pipe, fcntl.F_SETFL, oldflags) |
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692 |
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693 def bindunixsocket(sock, path): |
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694 """Bind the UNIX domain socket to the specified path""" |
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695 # use relative path instead of full path at bind() if possible, since |
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696 # AF_UNIX path has very small length limit (107 chars) on common |
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697 # platforms (see sys/un.h) |
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698 dirname, basename = os.path.split(path) |
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699 bakwdfd = None |
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700 if dirname: |
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701 bakwdfd = os.open('.', os.O_DIRECTORY) |
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702 os.chdir(dirname) |
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703 sock.bind(basename) |
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704 if bakwdfd: |
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705 os.fchdir(bakwdfd) |
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706 os.close(bakwdfd) |