Mercurial > hg
annotate mercurial/win32.py @ 20629:277dc5f27310
cmdserver: recreate mq object on runcommand in case queue path was changed
repo.mq needs to be recreated after queue path change. Since there is little
benefit to keep invalidated mq object, it always delete repo.mq.
author | Yuya Nishihara <yuya@tcha.org> |
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date | Mon, 03 Mar 2014 19:41:30 +0900 |
parents | 1a9ebc83a74c |
children | 07f9825865de |
rev | line source |
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1 # win32.py - utility functions that use win32 API |
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2 # |
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3 # Copyright 2005-2009 Matt Mackall <mpm@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 import ctypes, errno, os, subprocess, random |
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9 |
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10 _kernel32 = ctypes.windll.kernel32 |
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11 _advapi32 = ctypes.windll.advapi32 |
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12 _user32 = ctypes.windll.user32 |
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13 |
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14 _BOOL = ctypes.c_long |
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15 _WORD = ctypes.c_ushort |
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16 _DWORD = ctypes.c_ulong |
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17 _UINT = ctypes.c_uint |
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18 _LONG = ctypes.c_long |
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19 _LPCSTR = _LPSTR = ctypes.c_char_p |
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20 _HANDLE = ctypes.c_void_p |
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21 _HWND = _HANDLE |
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22 |
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23 _INVALID_HANDLE_VALUE = _HANDLE(-1).value |
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24 |
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25 # GetLastError |
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26 _ERROR_SUCCESS = 0 |
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27 _ERROR_SHARING_VIOLATION = 32 |
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28 _ERROR_INVALID_PARAMETER = 87 |
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29 _ERROR_INSUFFICIENT_BUFFER = 122 |
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30 |
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31 # WPARAM is defined as UINT_PTR (unsigned type) |
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32 # LPARAM is defined as LONG_PTR (signed type) |
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33 if ctypes.sizeof(ctypes.c_long) == ctypes.sizeof(ctypes.c_void_p): |
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34 _WPARAM = ctypes.c_ulong |
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35 _LPARAM = ctypes.c_long |
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36 elif ctypes.sizeof(ctypes.c_longlong) == ctypes.sizeof(ctypes.c_void_p): |
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37 _WPARAM = ctypes.c_ulonglong |
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38 _LPARAM = ctypes.c_longlong |
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39 |
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40 class _FILETIME(ctypes.Structure): |
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41 _fields_ = [('dwLowDateTime', _DWORD), |
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42 ('dwHighDateTime', _DWORD)] |
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43 |
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44 class _BY_HANDLE_FILE_INFORMATION(ctypes.Structure): |
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45 _fields_ = [('dwFileAttributes', _DWORD), |
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46 ('ftCreationTime', _FILETIME), |
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47 ('ftLastAccessTime', _FILETIME), |
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48 ('ftLastWriteTime', _FILETIME), |
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49 ('dwVolumeSerialNumber', _DWORD), |
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50 ('nFileSizeHigh', _DWORD), |
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51 ('nFileSizeLow', _DWORD), |
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52 ('nNumberOfLinks', _DWORD), |
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53 ('nFileIndexHigh', _DWORD), |
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54 ('nFileIndexLow', _DWORD)] |
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55 |
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56 # CreateFile |
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57 _FILE_SHARE_READ = 0x00000001 |
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58 _FILE_SHARE_WRITE = 0x00000002 |
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59 _FILE_SHARE_DELETE = 0x00000004 |
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60 |
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61 _OPEN_EXISTING = 3 |
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62 |
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63 _FILE_FLAG_OPEN_REPARSE_POINT = 0x00200000 |
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64 _FILE_FLAG_BACKUP_SEMANTICS = 0x02000000 |
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65 _FILE_FLAG_DELETE_ON_CLOSE = 0x04000000 |
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66 |
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67 # SetFileAttributes |
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68 _FILE_ATTRIBUTE_NORMAL = 0x80 |
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69 _FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = 0x2000 |
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70 |
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71 # Process Security and Access Rights |
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72 _PROCESS_QUERY_INFORMATION = 0x0400 |
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73 |
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74 # GetExitCodeProcess |
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75 _STILL_ACTIVE = 259 |
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76 |
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77 class _STARTUPINFO(ctypes.Structure): |
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78 _fields_ = [('cb', _DWORD), |
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79 ('lpReserved', _LPSTR), |
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80 ('lpDesktop', _LPSTR), |
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81 ('lpTitle', _LPSTR), |
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82 ('dwX', _DWORD), |
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83 ('dwY', _DWORD), |
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84 ('dwXSize', _DWORD), |
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85 ('dwYSize', _DWORD), |
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86 ('dwXCountChars', _DWORD), |
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87 ('dwYCountChars', _DWORD), |
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88 ('dwFillAttribute', _DWORD), |
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89 ('dwFlags', _DWORD), |
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90 ('wShowWindow', _WORD), |
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91 ('cbReserved2', _WORD), |
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92 ('lpReserved2', ctypes.c_char_p), |
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93 ('hStdInput', _HANDLE), |
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94 ('hStdOutput', _HANDLE), |
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95 ('hStdError', _HANDLE)] |
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96 |
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97 class _PROCESS_INFORMATION(ctypes.Structure): |
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98 _fields_ = [('hProcess', _HANDLE), |
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99 ('hThread', _HANDLE), |
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100 ('dwProcessId', _DWORD), |
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101 ('dwThreadId', _DWORD)] |
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102 |
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103 _CREATE_NO_WINDOW = 0x08000000 |
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104 _SW_HIDE = 0 |
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105 |
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106 class _COORD(ctypes.Structure): |
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107 _fields_ = [('X', ctypes.c_short), |
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108 ('Y', ctypes.c_short)] |
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109 |
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110 class _SMALL_RECT(ctypes.Structure): |
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111 _fields_ = [('Left', ctypes.c_short), |
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112 ('Top', ctypes.c_short), |
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113 ('Right', ctypes.c_short), |
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114 ('Bottom', ctypes.c_short)] |
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115 |
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116 class _CONSOLE_SCREEN_BUFFER_INFO(ctypes.Structure): |
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117 _fields_ = [('dwSize', _COORD), |
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118 ('dwCursorPosition', _COORD), |
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119 ('wAttributes', _WORD), |
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120 ('srWindow', _SMALL_RECT), |
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121 ('dwMaximumWindowSize', _COORD)] |
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122 |
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123 _STD_ERROR_HANDLE = _DWORD(-12).value |
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124 |
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125 # CreateToolhelp32Snapshot, Process32First, Process32Next |
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126 _TH32CS_SNAPPROCESS = 0x00000002 |
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127 _MAX_PATH = 260 |
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128 |
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129 class _tagPROCESSENTRY32(ctypes.Structure): |
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130 _fields_ = [('dwsize', _DWORD), |
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131 ('cntUsage', _DWORD), |
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132 ('th32ProcessID', _DWORD), |
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133 ('th32DefaultHeapID', ctypes.c_void_p), |
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134 ('th32ModuleID', _DWORD), |
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135 ('cntThreads', _DWORD), |
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136 ('th32ParentProcessID', _DWORD), |
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137 ('pcPriClassBase', _LONG), |
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138 ('dwFlags', _DWORD), |
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139 ('szExeFile', ctypes.c_char * _MAX_PATH)] |
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140 |
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141 def __init__(self): |
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142 super(_tagPROCESSENTRY32, self).__init__() |
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143 self.dwsize = ctypes.sizeof(self) |
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144 |
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145 |
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146 # types of parameters of C functions used (required by pypy) |
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147 |
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148 _kernel32.CreateFileA.argtypes = [_LPCSTR, _DWORD, _DWORD, ctypes.c_void_p, |
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149 _DWORD, _DWORD, _HANDLE] |
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150 _kernel32.CreateFileA.restype = _HANDLE |
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151 |
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152 _kernel32.GetFileInformationByHandle.argtypes = [_HANDLE, ctypes.c_void_p] |
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153 _kernel32.GetFileInformationByHandle.restype = _BOOL |
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154 |
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155 _kernel32.CloseHandle.argtypes = [_HANDLE] |
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156 _kernel32.CloseHandle.restype = _BOOL |
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157 |
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158 try: |
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159 _kernel32.CreateHardLinkA.argtypes = [_LPCSTR, _LPCSTR, ctypes.c_void_p] |
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160 _kernel32.CreateHardLinkA.restype = _BOOL |
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161 except AttributeError: |
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162 pass |
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163 |
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164 _kernel32.SetFileAttributesA.argtypes = [_LPCSTR, _DWORD] |
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165 _kernel32.SetFileAttributesA.restype = _BOOL |
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166 |
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167 _kernel32.OpenProcess.argtypes = [_DWORD, _BOOL, _DWORD] |
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168 _kernel32.OpenProcess.restype = _HANDLE |
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169 |
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170 _kernel32.GetExitCodeProcess.argtypes = [_HANDLE, ctypes.c_void_p] |
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171 _kernel32.GetExitCodeProcess.restype = _BOOL |
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172 |
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173 _kernel32.GetLastError.argtypes = [] |
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174 _kernel32.GetLastError.restype = _DWORD |
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175 |
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176 _kernel32.GetModuleFileNameA.argtypes = [_HANDLE, ctypes.c_void_p, _DWORD] |
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177 _kernel32.GetModuleFileNameA.restype = _DWORD |
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178 |
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179 _kernel32.CreateProcessA.argtypes = [_LPCSTR, _LPCSTR, ctypes.c_void_p, |
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180 ctypes.c_void_p, _BOOL, _DWORD, ctypes.c_void_p, _LPCSTR, ctypes.c_void_p, |
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181 ctypes.c_void_p] |
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182 _kernel32.CreateProcessA.restype = _BOOL |
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183 |
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184 _kernel32.ExitProcess.argtypes = [_UINT] |
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185 _kernel32.ExitProcess.restype = None |
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186 |
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187 _kernel32.GetCurrentProcessId.argtypes = [] |
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188 _kernel32.GetCurrentProcessId.restype = _DWORD |
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189 |
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190 _SIGNAL_HANDLER = ctypes.WINFUNCTYPE(_BOOL, _DWORD) |
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191 _kernel32.SetConsoleCtrlHandler.argtypes = [_SIGNAL_HANDLER, _BOOL] |
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192 _kernel32.SetConsoleCtrlHandler.restype = _BOOL |
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193 |
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194 _kernel32.GetStdHandle.argtypes = [_DWORD] |
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195 _kernel32.GetStdHandle.restype = _HANDLE |
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196 |
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197 _kernel32.GetConsoleScreenBufferInfo.argtypes = [_HANDLE, ctypes.c_void_p] |
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198 _kernel32.GetConsoleScreenBufferInfo.restype = _BOOL |
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199 |
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200 _advapi32.GetUserNameA.argtypes = [ctypes.c_void_p, ctypes.c_void_p] |
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201 _advapi32.GetUserNameA.restype = _BOOL |
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202 |
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203 _user32.GetWindowThreadProcessId.argtypes = [_HANDLE, ctypes.c_void_p] |
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204 _user32.GetWindowThreadProcessId.restype = _DWORD |
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205 |
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206 _user32.ShowWindow.argtypes = [_HANDLE, ctypes.c_int] |
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207 _user32.ShowWindow.restype = _BOOL |
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208 |
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209 _WNDENUMPROC = ctypes.WINFUNCTYPE(_BOOL, _HWND, _LPARAM) |
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210 _user32.EnumWindows.argtypes = [_WNDENUMPROC, _LPARAM] |
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211 _user32.EnumWindows.restype = _BOOL |
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212 |
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213 _kernel32.CreateToolhelp32Snapshot.argtypes = [_DWORD, _DWORD] |
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214 _kernel32.CreateToolhelp32Snapshot.restype = _BOOL |
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215 |
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216 _kernel32.Process32First.argtypes = [_HANDLE, ctypes.c_void_p] |
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217 _kernel32.Process32First.restype = _BOOL |
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218 |
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219 _kernel32.Process32Next.argtypes = [_HANDLE, ctypes.c_void_p] |
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220 _kernel32.Process32Next.restype = _BOOL |
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221 |
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222 def _raiseoserror(name): |
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223 err = ctypes.WinError() |
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224 raise OSError(err.errno, '%s: %s' % (name, err.strerror)) |
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225 |
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226 def _getfileinfo(name): |
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227 fh = _kernel32.CreateFileA(name, 0, |
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228 _FILE_SHARE_READ | _FILE_SHARE_WRITE | _FILE_SHARE_DELETE, |
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229 None, _OPEN_EXISTING, _FILE_FLAG_BACKUP_SEMANTICS, None) |
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230 if fh == _INVALID_HANDLE_VALUE: |
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231 _raiseoserror(name) |
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232 try: |
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233 fi = _BY_HANDLE_FILE_INFORMATION() |
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234 if not _kernel32.GetFileInformationByHandle(fh, ctypes.byref(fi)): |
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235 _raiseoserror(name) |
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236 return fi |
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237 finally: |
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238 _kernel32.CloseHandle(fh) |
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239 |
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240 def oslink(src, dst): |
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241 try: |
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242 if not _kernel32.CreateHardLinkA(dst, src, None): |
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243 _raiseoserror(src) |
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244 except AttributeError: # Wine doesn't support this function |
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245 _raiseoserror(src) |
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246 |
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247 def nlinks(name): |
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248 '''return number of hardlinks for the given file''' |
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249 return _getfileinfo(name).nNumberOfLinks |
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250 |
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251 def samefile(path1, path2): |
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252 '''Returns whether path1 and path2 refer to the same file or directory.''' |
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253 res1 = _getfileinfo(path1) |
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254 res2 = _getfileinfo(path2) |
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255 return (res1.dwVolumeSerialNumber == res2.dwVolumeSerialNumber |
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256 and res1.nFileIndexHigh == res2.nFileIndexHigh |
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257 and res1.nFileIndexLow == res2.nFileIndexLow) |
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258 |
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259 def samedevice(path1, path2): |
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260 '''Returns whether path1 and path2 are on the same device.''' |
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261 res1 = _getfileinfo(path1) |
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262 res2 = _getfileinfo(path2) |
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263 return res1.dwVolumeSerialNumber == res2.dwVolumeSerialNumber |
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264 |
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265 def testpid(pid): |
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266 '''return True if pid is still running or unable to |
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267 determine, False otherwise''' |
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268 h = _kernel32.OpenProcess(_PROCESS_QUERY_INFORMATION, False, pid) |
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269 if h: |
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270 try: |
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271 status = _DWORD() |
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272 if _kernel32.GetExitCodeProcess(h, ctypes.byref(status)): |
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273 return status.value == _STILL_ACTIVE |
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274 finally: |
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275 _kernel32.CloseHandle(h) |
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276 return _kernel32.GetLastError() != _ERROR_INVALID_PARAMETER |
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277 |
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278 def executablepath(): |
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279 '''return full path of hg.exe''' |
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280 size = 600 |
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281 buf = ctypes.create_string_buffer(size + 1) |
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282 len = _kernel32.GetModuleFileNameA(None, ctypes.byref(buf), size) |
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283 if len == 0: |
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284 raise ctypes.WinError |
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285 elif len == size: |
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286 raise ctypes.WinError(_ERROR_INSUFFICIENT_BUFFER) |
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287 return buf.value |
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288 |
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289 def getuser(): |
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290 '''return name of current user''' |
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291 size = _DWORD(300) |
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292 buf = ctypes.create_string_buffer(size.value + 1) |
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293 if not _advapi32.GetUserNameA(ctypes.byref(buf), ctypes.byref(size)): |
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294 raise ctypes.WinError |
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295 return buf.value |
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296 |
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297 _signalhandler = [] |
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298 |
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299 def setsignalhandler(): |
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300 '''Register a termination handler for console events including |
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301 CTRL+C. python signal handlers do not work well with socket |
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302 operations. |
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303 ''' |
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304 def handler(event): |
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305 _kernel32.ExitProcess(1) |
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306 |
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307 if _signalhandler: |
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308 return # already registered |
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309 h = _SIGNAL_HANDLER(handler) |
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310 _signalhandler.append(h) # needed to prevent garbage collection |
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311 if not _kernel32.SetConsoleCtrlHandler(h, True): |
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312 raise ctypes.WinError |
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313 |
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314 def hidewindow(): |
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315 |
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316 def callback(hwnd, pid): |
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317 wpid = _DWORD() |
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318 _user32.GetWindowThreadProcessId(hwnd, ctypes.byref(wpid)) |
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319 if pid == wpid.value: |
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320 _user32.ShowWindow(hwnd, _SW_HIDE) |
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321 return False # stop enumerating windows |
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322 return True |
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323 |
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324 pid = _kernel32.GetCurrentProcessId() |
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325 _user32.EnumWindows(_WNDENUMPROC(callback), pid) |
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326 |
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327 def termwidth(): |
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328 # cmd.exe does not handle CR like a unix console, the CR is |
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329 # counted in the line length. On 80 columns consoles, if 80 |
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330 # characters are written, the following CR won't apply on the |
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331 # current line but on the new one. Keep room for it. |
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332 width = 79 |
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333 # Query stderr to avoid problems with redirections |
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334 screenbuf = _kernel32.GetStdHandle( |
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335 _STD_ERROR_HANDLE) # don't close the handle returned |
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336 if screenbuf is None or screenbuf == _INVALID_HANDLE_VALUE: |
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337 return width |
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338 csbi = _CONSOLE_SCREEN_BUFFER_INFO() |
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339 if not _kernel32.GetConsoleScreenBufferInfo( |
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340 screenbuf, ctypes.byref(csbi)): |
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341 return width |
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342 width = csbi.srWindow.Right - csbi.srWindow.Left |
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343 return width |
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344 |
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345 def _1stchild(pid): |
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346 '''return the 1st found child of the given pid |
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347 |
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348 None is returned when no child is found''' |
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349 pe = _tagPROCESSENTRY32() |
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350 |
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351 # create handle to list all processes |
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352 ph = _kernel32.CreateToolhelp32Snapshot(_TH32CS_SNAPPROCESS, 0) |
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353 if ph == _INVALID_HANDLE_VALUE: |
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354 raise ctypes.WinError |
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355 try: |
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356 r = _kernel32.Process32First(ph, ctypes.byref(pe)) |
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357 # loop over all processes |
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358 while r: |
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359 if pe.th32ParentProcessID == pid: |
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360 # return first child found |
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361 return pe.th32ProcessID |
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362 r = _kernel32.Process32Next(ph, ctypes.byref(pe)) |
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363 finally: |
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364 _kernel32.CloseHandle(ph) |
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365 if _kernel32.GetLastError() != _ERROR_NO_MORE_FILES: |
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366 raise ctypes.WinError |
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367 return None # no child found |
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368 |
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369 class _tochildpid(int): # pid is _DWORD, which always matches in an int |
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370 '''helper for spawndetached, returns the child pid on conversion to string |
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371 |
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372 Does not resolve the child pid immediately because the child may not yet be |
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373 started. |
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374 ''' |
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375 def childpid(self): |
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376 '''returns the child pid of the first found child of the process |
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377 with this pid''' |
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378 return _1stchild(self) |
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379 def __str__(self): |
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380 # run when the pid is written to the file |
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381 ppid = self.childpid() |
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382 if ppid is None: |
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383 # race, child has exited since check |
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384 # fall back to this pid. Its process will also have disappeared, |
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385 # raising the same error type later as when the child pid would |
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386 # be returned. |
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387 return " %d" % self |
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388 return str(ppid) |
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389 |
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390 def spawndetached(args): |
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391 # No standard library function really spawns a fully detached |
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392 # process under win32 because they allocate pipes or other objects |
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393 # to handle standard streams communications. Passing these objects |
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394 # to the child process requires handle inheritance to be enabled |
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395 # which makes really detached processes impossible. |
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396 si = _STARTUPINFO() |
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397 si.cb = ctypes.sizeof(_STARTUPINFO) |
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398 |
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399 pi = _PROCESS_INFORMATION() |
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400 |
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401 env = '' |
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402 for k in os.environ: |
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403 env += "%s=%s\0" % (k, os.environ[k]) |
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404 if not env: |
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405 env = '\0' |
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406 env += '\0' |
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407 |
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408 args = subprocess.list2cmdline(args) |
17428
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avoid using abbreviations that look like spelling errors
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409 # Not running the command in shell mode makes Python 2.6 hang when |
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410 # writing to hgweb output socket. |
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411 comspec = os.environ.get("COMSPEC", "cmd.exe") |
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412 args = comspec + " /c " + args |
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413 |
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414 res = _kernel32.CreateProcessA( |
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415 None, args, None, None, False, _CREATE_NO_WINDOW, |
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416 env, os.getcwd(), ctypes.byref(si), ctypes.byref(pi)) |
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417 if not res: |
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|
418 raise ctypes.WinError |
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419 |
20425
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420 # _tochildpid because the process is the child of COMSPEC |
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421 return _tochildpid(pi.dwProcessId) |
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422 |
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423 def unlink(f): |
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424 '''try to implement POSIX' unlink semantics on Windows''' |
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425 |
20528
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426 # If we can open f exclusively, no other processes must have open handles |
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427 # for it and we can expect its name will be deleted immediately when we |
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428 # close the handle unless we have another in the same process. We also |
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429 # expect we shall simply fail to open f if it is a directory. |
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430 fh = _kernel32.CreateFileA(f, 0, 0, None, _OPEN_EXISTING, |
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431 _FILE_FLAG_OPEN_REPARSE_POINT | _FILE_FLAG_DELETE_ON_CLOSE, None) |
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432 if fh != _INVALID_HANDLE_VALUE: |
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433 _kernel32.CloseHandle(fh) |
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434 return |
1a9ebc83a74c
win32: improve the performance of win32.unlink() over CIFS
Kaz Nishimura <kazssym@vx68k.org>
parents:
20425
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435 error = _kernel32.GetLastError() |
1a9ebc83a74c
win32: improve the performance of win32.unlink() over CIFS
Kaz Nishimura <kazssym@vx68k.org>
parents:
20425
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436 if error != _ERROR_SHARING_VIOLATION: |
1a9ebc83a74c
win32: improve the performance of win32.unlink() over CIFS
Kaz Nishimura <kazssym@vx68k.org>
parents:
20425
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437 raise ctypes.WinError(error) |
19159
1b329f8c7b24
windows: check target type before actual unlinking to follow POSIX semantics
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
18959
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438 |
13775
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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439 # POSIX allows to unlink and rename open files. Windows has serious |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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440 # problems with doing that: |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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441 # - Calling os.unlink (or os.rename) on a file f fails if f or any |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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442 # hardlinked copy of f has been opened with Python's open(). There is no |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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443 # way such a file can be deleted or renamed on Windows (other than |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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444 # scheduling the delete or rename for the next reboot). |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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445 # - Calling os.unlink on a file that has been opened with Mercurial's |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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446 # posixfile (or comparable methods) will delay the actual deletion of |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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447 # the file for as long as the file is held open. The filename is blocked |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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448 # during that time and cannot be used for recreating a new file under |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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449 # that same name ("zombie file"). Directories containing such zombie files |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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450 # cannot be removed or moved. |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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451 # A file that has been opened with posixfile can be renamed, so we rename |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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452 # f to a random temporary name before calling os.unlink on it. This allows |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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453 # callers to recreate f immediately while having other readers do their |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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454 # implicit zombie filename blocking on a temporary name. |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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455 |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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456 for tries in xrange(10): |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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457 temp = '%s-%08x' % (f, random.randint(0, 0xffffffff)) |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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458 try: |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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459 os.rename(f, temp) # raises OSError EEXIST if temp exists |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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460 break |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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461 except OSError, e: |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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462 if e.errno != errno.EEXIST: |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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463 raise |
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windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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464 else: |
18175
fd3f8b87b682
win32: clean up use of two-argument raise
Augie Fackler <raf@durin42.com>
parents:
17428
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changeset
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465 raise IOError(errno.EEXIST, "No usable temporary filename found") |
13775
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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changeset
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466 |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
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467 try: |
930efdc6bfa4
windows: move unlink to win32.py
Adrian Buehlmann <adrian@cadifra.com>
parents:
13379
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468 os.unlink(temp) |
13776
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
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changeset
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469 except OSError: |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
changeset
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470 # The unlink might have failed because the READONLY attribute may heave |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
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471 # been set on the original file. Rename works fine with READONLY set, |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
changeset
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472 # but not os.unlink. Reset all attributes and try again. |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
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473 _kernel32.SetFileAttributesA(temp, _FILE_ATTRIBUTE_NORMAL) |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
changeset
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474 try: |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
changeset
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475 os.unlink(temp) |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
changeset
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476 except OSError: |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
changeset
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477 # The unlink might have failed due to some very rude AV-Scanners. |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
diff
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478 # Leaking a tempfile is the lesser evil than aborting here and |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
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479 # leaving some potentially serious inconsistencies. |
a2f0fdb1e488
win32: remove READONLY attribute on unlink
Adrian Buehlmann <adrian@cadifra.com>
parents:
13775
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480 pass |
13795
43b5fe18ea6c
set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents:
13776
diff
changeset
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481 |
43b5fe18ea6c
set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents:
13776
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482 def makedir(path, notindexed): |
43b5fe18ea6c
set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents:
13776
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483 os.mkdir(path) |
43b5fe18ea6c
set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents:
13776
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484 if notindexed: |
43b5fe18ea6c
set NOT_CONTENT_INDEXED on .hg dir (issue2694)
Adrian Buehlmann <adrian@cadifra.com>
parents:
13776
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485 _kernel32.SetFileAttributesA(path, _FILE_ATTRIBUTE_NOT_CONTENT_INDEXED) |