Mercurial > hg
annotate mercurial/util_win32.py @ 6139:989467e8e3a9
Fix bad behaviour when specifying an invalid date (issue700)
commit (aborts _after_ typing in a commit message)
backout (aborted after the initial revert)
tag (edited .hgtags and couldn't commit)
import (patch applied, then commit fails)
qnew (aborts on bad dates, but writes any valid date into the # Date header)
qrefresh (like qnew)
sign (like tag)
fetch (merge, merge, merge, merge, abort)
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Sun, 17 Feb 2008 21:34:28 +0100 |
parents | e45de0f47215 |
children | 09a8be3e5bfb |
rev | line source |
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1 # util_win32.py - utility functions that use win32 API |
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2 # |
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3 # Copyright 2005 Matt Mackall <mpm@selenic.com> |
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4 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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5 # |
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6 # This software may be used and distributed according to the terms of |
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7 # the GNU General Public License, incorporated herein by reference. |
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8 |
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9 # Mark Hammond's win32all package allows better functionality on |
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10 # Windows. this module overrides definitions in util.py. if not |
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11 # available, import of this module will fail, and generic code will be |
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12 # used. |
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13 |
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14 import win32api |
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15 |
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17 import errno, os, pywintypes, win32con, win32file, win32process |
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18 import cStringIO, winerror |
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19 import osutil |
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20 from win32com.shell import shell,shellcon |
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21 |
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22 class WinError: |
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23 winerror_map = { |
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24 winerror.ERROR_ACCESS_DENIED: errno.EACCES, |
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25 winerror.ERROR_ACCOUNT_DISABLED: errno.EACCES, |
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26 winerror.ERROR_ACCOUNT_RESTRICTION: errno.EACCES, |
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27 winerror.ERROR_ALREADY_ASSIGNED: errno.EBUSY, |
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28 winerror.ERROR_ALREADY_EXISTS: errno.EEXIST, |
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29 winerror.ERROR_ARITHMETIC_OVERFLOW: errno.ERANGE, |
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30 winerror.ERROR_BAD_COMMAND: errno.EIO, |
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31 winerror.ERROR_BAD_DEVICE: errno.ENODEV, |
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32 winerror.ERROR_BAD_DRIVER_LEVEL: errno.ENXIO, |
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33 winerror.ERROR_BAD_EXE_FORMAT: errno.ENOEXEC, |
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34 winerror.ERROR_BAD_FORMAT: errno.ENOEXEC, |
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35 winerror.ERROR_BAD_LENGTH: errno.EINVAL, |
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36 winerror.ERROR_BAD_PATHNAME: errno.ENOENT, |
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37 winerror.ERROR_BAD_PIPE: errno.EPIPE, |
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38 winerror.ERROR_BAD_UNIT: errno.ENODEV, |
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39 winerror.ERROR_BAD_USERNAME: errno.EINVAL, |
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40 winerror.ERROR_BROKEN_PIPE: errno.EPIPE, |
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41 winerror.ERROR_BUFFER_OVERFLOW: errno.ENAMETOOLONG, |
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42 winerror.ERROR_BUSY: errno.EBUSY, |
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43 winerror.ERROR_BUSY_DRIVE: errno.EBUSY, |
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44 winerror.ERROR_CALL_NOT_IMPLEMENTED: errno.ENOSYS, |
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45 winerror.ERROR_CANNOT_MAKE: errno.EACCES, |
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46 winerror.ERROR_CANTOPEN: errno.EIO, |
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47 winerror.ERROR_CANTREAD: errno.EIO, |
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48 winerror.ERROR_CANTWRITE: errno.EIO, |
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49 winerror.ERROR_CRC: errno.EIO, |
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50 winerror.ERROR_CURRENT_DIRECTORY: errno.EACCES, |
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51 winerror.ERROR_DEVICE_IN_USE: errno.EBUSY, |
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52 winerror.ERROR_DEV_NOT_EXIST: errno.ENODEV, |
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53 winerror.ERROR_DIRECTORY: errno.EINVAL, |
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54 winerror.ERROR_DIR_NOT_EMPTY: errno.ENOTEMPTY, |
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55 winerror.ERROR_DISK_CHANGE: errno.EIO, |
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56 winerror.ERROR_DISK_FULL: errno.ENOSPC, |
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57 winerror.ERROR_DRIVE_LOCKED: errno.EBUSY, |
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58 winerror.ERROR_ENVVAR_NOT_FOUND: errno.EINVAL, |
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59 winerror.ERROR_EXE_MARKED_INVALID: errno.ENOEXEC, |
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60 winerror.ERROR_FILENAME_EXCED_RANGE: errno.ENAMETOOLONG, |
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61 winerror.ERROR_FILE_EXISTS: errno.EEXIST, |
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62 winerror.ERROR_FILE_INVALID: errno.ENODEV, |
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63 winerror.ERROR_FILE_NOT_FOUND: errno.ENOENT, |
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64 winerror.ERROR_GEN_FAILURE: errno.EIO, |
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65 winerror.ERROR_HANDLE_DISK_FULL: errno.ENOSPC, |
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66 winerror.ERROR_INSUFFICIENT_BUFFER: errno.ENOMEM, |
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67 winerror.ERROR_INVALID_ACCESS: errno.EACCES, |
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68 winerror.ERROR_INVALID_ADDRESS: errno.EFAULT, |
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69 winerror.ERROR_INVALID_BLOCK: errno.EFAULT, |
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70 winerror.ERROR_INVALID_DATA: errno.EINVAL, |
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71 winerror.ERROR_INVALID_DRIVE: errno.ENODEV, |
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72 winerror.ERROR_INVALID_EXE_SIGNATURE: errno.ENOEXEC, |
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73 winerror.ERROR_INVALID_FLAGS: errno.EINVAL, |
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74 winerror.ERROR_INVALID_FUNCTION: errno.ENOSYS, |
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75 winerror.ERROR_INVALID_HANDLE: errno.EBADF, |
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76 winerror.ERROR_INVALID_LOGON_HOURS: errno.EACCES, |
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77 winerror.ERROR_INVALID_NAME: errno.EINVAL, |
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78 winerror.ERROR_INVALID_OWNER: errno.EINVAL, |
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79 winerror.ERROR_INVALID_PARAMETER: errno.EINVAL, |
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80 winerror.ERROR_INVALID_PASSWORD: errno.EPERM, |
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81 winerror.ERROR_INVALID_PRIMARY_GROUP: errno.EINVAL, |
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82 winerror.ERROR_INVALID_SIGNAL_NUMBER: errno.EINVAL, |
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83 winerror.ERROR_INVALID_TARGET_HANDLE: errno.EIO, |
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84 winerror.ERROR_INVALID_WORKSTATION: errno.EACCES, |
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85 winerror.ERROR_IO_DEVICE: errno.EIO, |
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86 winerror.ERROR_IO_INCOMPLETE: errno.EINTR, |
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87 winerror.ERROR_LOCKED: errno.EBUSY, |
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88 winerror.ERROR_LOCK_VIOLATION: errno.EACCES, |
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89 winerror.ERROR_LOGON_FAILURE: errno.EACCES, |
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90 winerror.ERROR_MAPPED_ALIGNMENT: errno.EINVAL, |
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91 winerror.ERROR_META_EXPANSION_TOO_LONG: errno.E2BIG, |
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92 winerror.ERROR_MORE_DATA: errno.EPIPE, |
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93 winerror.ERROR_NEGATIVE_SEEK: errno.ESPIPE, |
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94 winerror.ERROR_NOACCESS: errno.EFAULT, |
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95 winerror.ERROR_NONE_MAPPED: errno.EINVAL, |
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96 winerror.ERROR_NOT_ENOUGH_MEMORY: errno.ENOMEM, |
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97 winerror.ERROR_NOT_READY: errno.EAGAIN, |
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98 winerror.ERROR_NOT_SAME_DEVICE: errno.EXDEV, |
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99 winerror.ERROR_NO_DATA: errno.EPIPE, |
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100 winerror.ERROR_NO_MORE_SEARCH_HANDLES: errno.EIO, |
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101 winerror.ERROR_NO_PROC_SLOTS: errno.EAGAIN, |
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102 winerror.ERROR_NO_SUCH_PRIVILEGE: errno.EACCES, |
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103 winerror.ERROR_OPEN_FAILED: errno.EIO, |
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104 winerror.ERROR_OPEN_FILES: errno.EBUSY, |
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105 winerror.ERROR_OPERATION_ABORTED: errno.EINTR, |
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106 winerror.ERROR_OUTOFMEMORY: errno.ENOMEM, |
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107 winerror.ERROR_PASSWORD_EXPIRED: errno.EACCES, |
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108 winerror.ERROR_PATH_BUSY: errno.EBUSY, |
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109 winerror.ERROR_PATH_NOT_FOUND: errno.ENOENT, |
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110 winerror.ERROR_PIPE_BUSY: errno.EBUSY, |
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111 winerror.ERROR_PIPE_CONNECTED: errno.EPIPE, |
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112 winerror.ERROR_PIPE_LISTENING: errno.EPIPE, |
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113 winerror.ERROR_PIPE_NOT_CONNECTED: errno.EPIPE, |
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114 winerror.ERROR_PRIVILEGE_NOT_HELD: errno.EACCES, |
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115 winerror.ERROR_READ_FAULT: errno.EIO, |
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116 winerror.ERROR_SEEK: errno.EIO, |
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117 winerror.ERROR_SEEK_ON_DEVICE: errno.ESPIPE, |
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118 winerror.ERROR_SHARING_BUFFER_EXCEEDED: errno.ENFILE, |
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119 winerror.ERROR_SHARING_VIOLATION: errno.EACCES, |
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120 winerror.ERROR_STACK_OVERFLOW: errno.ENOMEM, |
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121 winerror.ERROR_SWAPERROR: errno.ENOENT, |
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122 winerror.ERROR_TOO_MANY_MODULES: errno.EMFILE, |
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123 winerror.ERROR_TOO_MANY_OPEN_FILES: errno.EMFILE, |
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124 winerror.ERROR_UNRECOGNIZED_MEDIA: errno.ENXIO, |
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125 winerror.ERROR_UNRECOGNIZED_VOLUME: errno.ENODEV, |
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126 winerror.ERROR_WAIT_NO_CHILDREN: errno.ECHILD, |
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127 winerror.ERROR_WRITE_FAULT: errno.EIO, |
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128 winerror.ERROR_WRITE_PROTECT: errno.EROFS, |
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129 } |
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130 |
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131 def __init__(self, err): |
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132 self.win_errno, self.win_function, self.win_strerror = err |
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133 if self.win_strerror.endswith('.'): |
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134 self.win_strerror = self.win_strerror[:-1] |
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135 |
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136 class WinIOError(WinError, IOError): |
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137 def __init__(self, err, filename=None): |
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138 WinError.__init__(self, err) |
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139 IOError.__init__(self, self.winerror_map.get(self.win_errno, 0), |
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140 self.win_strerror) |
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141 self.filename = filename |
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142 |
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143 class WinOSError(WinError, OSError): |
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144 def __init__(self, err): |
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145 WinError.__init__(self, err) |
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146 OSError.__init__(self, self.winerror_map.get(self.win_errno, 0), |
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147 self.win_strerror) |
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148 |
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149 def os_link(src, dst): |
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150 try: |
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151 win32file.CreateHardLink(dst, src) |
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152 # CreateHardLink sometimes succeeds on mapped drives but |
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153 # following nlinks() returns 1. Check it now and bail out. |
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154 if nlinks(src) < 2: |
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155 try: |
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156 win32file.DeleteFile(dst) |
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157 except: |
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158 pass |
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159 # Fake hardlinking error |
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160 raise WinOSError((18, 'CreateHardLink', 'The system cannot ' |
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161 'move the file to a different disk drive')) |
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162 except pywintypes.error, details: |
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163 raise WinOSError(details) |
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164 |
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165 def nlinks(pathname): |
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166 """Return number of hardlinks for the given file.""" |
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167 try: |
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168 fh = win32file.CreateFile(pathname, |
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169 win32file.GENERIC_READ, win32file.FILE_SHARE_READ, |
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170 None, win32file.OPEN_EXISTING, 0, None) |
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171 res = win32file.GetFileInformationByHandle(fh) |
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172 fh.Close() |
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173 return res[7] |
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174 except pywintypes.error: |
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175 return os.lstat(pathname).st_nlink |
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176 |
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177 def testpid(pid): |
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178 '''return True if pid is still running or unable to |
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179 determine, False otherwise''' |
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180 try: |
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181 handle = win32api.OpenProcess( |
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182 win32con.PROCESS_QUERY_INFORMATION, False, pid) |
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183 if handle: |
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184 status = win32process.GetExitCodeProcess(handle) |
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185 return status == win32con.STILL_ACTIVE |
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186 except pywintypes.error, details: |
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187 return details[0] != winerror.ERROR_INVALID_PARAMETER |
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188 return True |
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189 |
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190 def lookup_reg(key, valname=None, scope=None): |
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191 ''' Look up a key/value name in the Windows registry. |
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192 |
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193 valname: value name. If unspecified, the default value for the key |
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194 is used. |
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195 scope: optionally specify scope for registry lookup, this can be |
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196 a sequence of scopes to look up in order. Default (CURRENT_USER, |
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197 LOCAL_MACHINE). |
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198 ''' |
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199 try: |
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200 from _winreg import HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, \ |
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201 QueryValueEx, OpenKey |
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202 except ImportError: |
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203 return None |
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204 |
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205 def query_val(scope, key, valname): |
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206 try: |
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207 keyhandle = OpenKey(scope, key) |
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208 return QueryValueEx(keyhandle, valname)[0] |
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209 except EnvironmentError: |
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210 return None |
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211 |
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212 if scope is None: |
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213 scope = (HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE) |
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214 elif not isinstance(scope, (list, tuple)): |
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215 scope = (scope,) |
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216 for s in scope: |
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217 val = query_val(s, key, valname) |
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218 if val is not None: |
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219 return val |
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220 |
2117 | 221 def system_rcpath_win32(): |
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222 '''return default os-specific hgrc search path''' |
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223 proc = win32api.GetCurrentProcess() |
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224 try: |
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225 # This will fail on windows < NT |
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226 filename = win32process.GetModuleFileNameEx(proc, 0) |
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227 except: |
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228 filename = win32api.GetModuleFileName(0) |
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229 # Use mercurial.ini found in directory with hg.exe |
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230 progrc = os.path.join(os.path.dirname(filename), 'mercurial.ini') |
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231 if os.path.isfile(progrc): |
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232 return [progrc] |
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233 # else look for a system rcpath in the registry |
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234 try: |
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235 value = win32api.RegQueryValue( |
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236 win32con.HKEY_LOCAL_MACHINE, 'SOFTWARE\\Mercurial') |
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237 rcpath = [] |
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238 for p in value.split(os.pathsep): |
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239 if p.lower().endswith('mercurial.ini'): |
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240 rcpath.append(p) |
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241 elif os.path.isdir(p): |
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242 for f, kind in osutil.listdir(p): |
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243 if f.endswith('.rc'): |
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244 rcpath.append(os.path.join(p, f)) |
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245 return rcpath |
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246 except pywintypes.error: |
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247 return [] |
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248 |
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249 def user_rcpath_win32(): |
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250 '''return os-specific hgrc search path to the user dir''' |
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251 userdir = os.path.expanduser('~') |
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252 if sys.getwindowsversion() != 2 and userdir == '~': |
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253 # We are on win < nt: fetch the APPDATA directory location and use |
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254 # the parent directory as the user home dir. |
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255 appdir = shell.SHGetPathFromIDList( |
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256 shell.SHGetSpecialFolderLocation(0, shellcon.CSIDL_APPDATA)) |
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257 userdir = os.path.dirname(appdir) |
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258 return os.path.join(userdir, 'mercurial.ini') |
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259 |
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260 class posixfile_nt(object): |
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261 '''file object with posix-like semantics. on windows, normal |
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262 files can not be deleted or renamed if they are open. must open |
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263 with win32file.FILE_SHARE_DELETE. this flag does not exist on |
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264 windows < nt, so do not use this class there.''' |
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265 |
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266 # tried to use win32file._open_osfhandle to pass fd to os.fdopen, |
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267 # but does not work at all. wrap win32 file api instead. |
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268 |
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269 def __init__(self, name, mode='rb'): |
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270 self.closed = False |
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271 self.name = name |
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272 self.mode = mode |
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273 access = 0 |
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274 if 'r' in mode or '+' in mode: |
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275 access |= win32file.GENERIC_READ |
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276 if 'w' in mode or 'a' in mode or '+' in mode: |
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277 access |= win32file.GENERIC_WRITE |
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278 if 'r' in mode: |
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279 creation = win32file.OPEN_EXISTING |
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280 elif 'a' in mode: |
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281 creation = win32file.OPEN_ALWAYS |
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282 else: |
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283 creation = win32file.CREATE_ALWAYS |
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284 try: |
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285 self.handle = win32file.CreateFile(name, |
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286 access, |
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287 win32file.FILE_SHARE_READ | |
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288 win32file.FILE_SHARE_WRITE | |
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289 win32file.FILE_SHARE_DELETE, |
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290 None, |
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291 creation, |
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292 win32file.FILE_ATTRIBUTE_NORMAL, |
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|
293 0) |
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|
294 except pywintypes.error, err: |
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295 raise WinIOError(err, name) |
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296 |
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297 def __iter__(self): |
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298 for line in self.read().splitlines(True): |
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299 yield line |
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300 |
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301 def read(self, count=-1): |
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302 try: |
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|
303 cs = cStringIO.StringIO() |
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304 while count: |
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|
305 wincount = int(count) |
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|
306 if wincount == -1: |
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|
307 wincount = 1048576 |
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|
308 val, data = win32file.ReadFile(self.handle, wincount) |
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309 if not data: break |
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|
310 cs.write(data) |
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311 if count != -1: |
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312 count -= len(data) |
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313 return cs.getvalue() |
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314 except pywintypes.error, err: |
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|
315 raise WinIOError(err) |
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316 |
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317 def write(self, data): |
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318 try: |
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319 if 'a' in self.mode: |
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320 win32file.SetFilePointer(self.handle, 0, win32file.FILE_END) |
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321 nwrit = 0 |
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322 while nwrit < len(data): |
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323 val, nwrit = win32file.WriteFile(self.handle, data) |
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324 data = data[nwrit:] |
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325 except pywintypes.error, err: |
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326 raise WinIOError(err) |
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327 |
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328 def writelines(self, sequence): |
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329 for s in sequence: |
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330 self.write(s) |
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331 |
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332 def seek(self, pos, whence=0): |
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333 try: |
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334 win32file.SetFilePointer(self.handle, int(pos), whence) |
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335 except pywintypes.error, err: |
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336 raise WinIOError(err) |
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337 |
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338 def tell(self): |
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339 try: |
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340 return win32file.SetFilePointer(self.handle, 0, |
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341 win32file.FILE_CURRENT) |
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342 except pywintypes.error, err: |
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343 raise WinIOError(err) |
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344 |
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345 def close(self): |
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346 if not self.closed: |
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347 self.handle = None |
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348 self.closed = True |
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349 |
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350 def flush(self): |
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351 # we have no application-level buffering |
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352 pass |
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353 |
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354 def truncate(self, pos=0): |
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355 try: |
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356 win32file.SetFilePointer(self.handle, int(pos), |
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357 win32file.FILE_BEGIN) |
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358 win32file.SetEndOfFile(self.handle) |
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359 except pywintypes.error, err: |
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360 raise WinIOError(err) |
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361 |
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362 getuser_fallback = win32api.GetUserName |
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363 |
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364 def set_signal_handler_win32(): |
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365 """Register a termination handler for console events including |
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366 CTRL+C. python signal handlers do not work well with socket |
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367 operations. |
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368 """ |
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369 def handler(event): |
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370 win32process.ExitProcess(1) |
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371 win32api.SetConsoleCtrlHandler(handler) |