Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/win32.py @ 10240:3af4b39afe2a

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cmdutil: hide child window created by win32 spawndetached() Hiding the child process window is not strictly necessary but it avoids opening an empty shell window when running hg serve as well as a task in the task bar. The window is hidden after the process is already started causing a single flicker.
author Patrick Mezard <pmezard@gmail.com>
date Sun, 10 Jan 2010 18:13:34 +0100
parents 3b94120864fc
children d6512b3e9ac0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8226
8b2cd04a6e97 put license and copyright info into comment blocks
Martin Geisler <mg@lazybytes.net>
parents: 8225
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1 # win32.py - utility functions that use win32 API
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Martin Geisler <mg@lazybytes.net>
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2 #
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Martin Geisler <mg@lazybytes.net>
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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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Martin Geisler <mg@lazybytes.net>
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6 # GNU General Public License version 2, incorporated herein by reference.
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Martin Geisler <mg@lazybytes.net>
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7
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8 """Utility functions that use win32 API.
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9
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10 Mark Hammond's win32all package allows better functionality on
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11 Windows. This module overrides definitions in util.py. If not
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12 available, import of this module will fail, and generic code will be
0a9542703300 turn some comments back into module docstrings
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13 used.
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14 """
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15
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16 import win32api
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17
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18 import errno, os, sys, pywintypes, win32con, win32file, win32process
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3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
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19 import winerror, win32gui
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20 import osutil, encoding
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21 from win32com.shell import shell, shellcon
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22
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23 def os_link(src, dst):
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24 try:
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25 win32file.CreateHardLink(dst, src)
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Patrick Mezard <pmezard@gmail.com>
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26 # CreateHardLink sometimes succeeds on mapped drives but
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27 # following nlinks() returns 1. Check it now and bail out.
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28 if nlinks(src) < 2:
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29 try:
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30 win32file.DeleteFile(dst)
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31 except:
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32 pass
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Patrick Mezard <pmezard@gmail.com>
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33 # Fake hardlinking error
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34 raise OSError(errno.EINVAL, 'Hardlinking not supported')
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parents:
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35 except pywintypes.error, details:
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36 raise OSError(errno.EINVAL, 'target implements hardlinks improperly')
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Matt Mackall <mpm@selenic.com>
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37 except NotImplementedError: # Another fake error win Win98
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38 raise OSError(errno.EINVAL, 'Hardlinking not supported')
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39
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40 def _getfileinfo(pathname):
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41 """Return number of hardlinks for the given file."""
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42 try:
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43 fh = win32file.CreateFile(pathname,
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44 win32file.GENERIC_READ, win32file.FILE_SHARE_READ,
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45 None, win32file.OPEN_EXISTING, 0, None)
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Patrick Mezard <pmezard@gmail.com>
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46 try:
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Patrick Mezard <pmezard@gmail.com>
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47 return win32file.GetFileInformationByHandle(fh)
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48 finally:
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49 fh.Close()
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50 except pywintypes.error:
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51 return None
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52
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53 def nlinks(pathname):
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54 """Return number of hardlinks for the given file."""
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55 res = _getfileinfo(pathname)
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56 if res is not None:
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57 return res[7]
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58 else:
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59 return os.lstat(pathname).st_nlink
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60
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61 def samefile(fpath1, fpath2):
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62 """Returns whether fpath1 and fpath2 refer to the same file. This is only
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63 guaranteed to work for files, not directories."""
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64 res1 = _getfileinfo(fpath1)
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65 res2 = _getfileinfo(fpath2)
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66 if res1 is not None and res2 is not None:
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67 # Index 4 is the volume serial number, and 8 and 9 contain the file ID
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68 return res1[4] == res2[4] and res1[8] == res2[8] and res1[9] == res2[9]
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69 else:
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70 return False
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71
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72 def samedevice(fpath1, fpath2):
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73 """Returns whether fpath1 and fpath2 are on the same device. This is only
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Siddharth Agarwal <sid.bugzilla@gmail.com>
parents: 9198
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74 guaranteed to work for files, not directories."""
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75 res1 = _getfileinfo(fpath1)
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76 res2 = _getfileinfo(fpath2)
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77 if res1 is not None and res2 is not None:
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78 return res1[4] == res2[4]
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79 else:
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80 return False
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81
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82 def testpid(pid):
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83 '''return True if pid is still running or unable to
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84 determine, False otherwise'''
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85 try:
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86 handle = win32api.OpenProcess(
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87 win32con.PROCESS_QUERY_INFORMATION, False, pid)
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88 if handle:
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89 status = win32process.GetExitCodeProcess(handle)
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90 return status == win32con.STILL_ACTIVE
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91 except pywintypes.error, details:
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92 return details[0] != winerror.ERROR_INVALID_PARAMETER
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93 return True
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94
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95 def lookup_reg(key, valname=None, scope=None):
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96 ''' Look up a key/value name in the Windows registry.
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parents: 5969
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97
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98 valname: value name. If unspecified, the default value for the key
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99 is used.
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100 scope: optionally specify scope for registry lookup, this can be
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parents: 5969
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101 a sequence of scopes to look up in order. Default (CURRENT_USER,
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102 LOCAL_MACHINE).
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103 '''
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parents: 5969
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104 try:
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parents: 5969
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105 from _winreg import HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE, \
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Matt Mackall <mpm@selenic.com>
parents: 5969
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106 QueryValueEx, OpenKey
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107 except ImportError:
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108 return None
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109
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110 if scope is None:
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111 scope = (HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE)
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112 elif not isinstance(scope, (list, tuple)):
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113 scope = (scope,)
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114 for s in scope:
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115 try:
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parents: 6880
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116 val = QueryValueEx(OpenKey(s, key), valname)[0]
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117 # never let a Unicode string escape into the wild
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118 return encoding.tolocal(val.encode('UTF-8'))
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119 except EnvironmentError:
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120 pass
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121
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122 def system_rcpath_win32():
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123 '''return default os-specific hgrc search path'''
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124 proc = win32api.GetCurrentProcess()
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125 try:
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126 # This will fail on windows < NT
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127 filename = win32process.GetModuleFileNameEx(proc, 0)
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128 except:
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Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
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129 filename = win32api.GetModuleFileName(0)
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130 # Use mercurial.ini found in directory with hg.exe
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131 progrc = os.path.join(os.path.dirname(filename), 'mercurial.ini')
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132 if os.path.isfile(progrc):
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133 return [progrc]
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134 # else look for a system rcpath in the registry
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135 try:
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136 value = win32api.RegQueryValue(
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137 win32con.HKEY_LOCAL_MACHINE, 'SOFTWARE\\Mercurial')
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138 rcpath = []
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139 for p in value.split(os.pathsep):
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140 if p.lower().endswith('mercurial.ini'):
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141 rcpath.append(p)
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142 elif os.path.isdir(p):
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143 for f, kind in osutil.listdir(p):
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144 if f.endswith('.rc'):
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145 rcpath.append(os.path.join(p, f))
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146 return rcpath
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147 except pywintypes.error:
5619
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148 return []
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9b42304d9896 fix file handling bugs on windows.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2117
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149
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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150 def user_rcpath_win32():
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parents: 2250
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151 '''return os-specific hgrc search path to the user dir'''
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Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 2250
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152 userdir = os.path.expanduser('~')
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Patrick Mezard <pmezard@gmail.com>
parents: 7390
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153 if sys.getwindowsversion()[3] != 2 and userdir == '~':
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parents: 2250
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154 # We are on win < nt: fetch the APPDATA directory location and use
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parents: 2250
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155 # the parent directory as the user home dir.
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parents: 2250
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156 appdir = shell.SHGetPathFromIDList(
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a600d9997521 Fixed typo (qshell instead of shell) in win98 code (see issue244).
Thomas Arendsen Hein <thomas@intevation.de>
parents: 2285
diff changeset
157 shell.SHGetSpecialFolderLocation(0, shellcon.CSIDL_APPDATA))
2284
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Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 2250
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158 userdir = os.path.dirname(appdir)
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Stefan Rank <strank(AT)strank(DOT)info>
parents: 6012
diff changeset
159 return [os.path.join(userdir, 'mercurial.ini'),
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parents: 6012
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160 os.path.join(userdir, '.hgrc')]
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Volker Kleinfeld <Volker.Kleinfeld@gmx.de>
parents: 2250
diff changeset
161
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Matt Mackall <mpm@selenic.com>
parents: 7778
diff changeset
162 def getuser():
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163 '''return name of current user'''
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parents: 7778
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164 return win32api.GetUserName()
4672
272c0a09b203 Handle CTRL+C in serve under Windows.
Marcos Chaves <marcos.nospam@gmail.com>
parents: 4407
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165
4803
7549cd526b7f Fix serve on Windows without win32* modules.
Nathan Jones <nathanj@insightbb.com>
parents: 4672
diff changeset
166 def set_signal_handler_win32():
4672
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Marcos Chaves <marcos.nospam@gmail.com>
parents: 4407
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167 """Register a termination handler for console events including
272c0a09b203 Handle CTRL+C in serve under Windows.
Marcos Chaves <marcos.nospam@gmail.com>
parents: 4407
diff changeset
168 CTRL+C. python signal handlers do not work well with socket
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parents: 4407
diff changeset
169 operations.
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170 """
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parents: 4407
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171 def handler(event):
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172 win32process.ExitProcess(1)
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parents: 4407
diff changeset
173 win32api.SetConsoleCtrlHandler(handler)
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parents: 7778
diff changeset
174
10240
3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
175 def hidewindow():
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Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
176 def callback(*args, **kwargs):
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Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
177 hwnd, pid = args
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Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
178 wpid = win32process.GetWindowThreadProcessId(hwnd)[1]
3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
179 if pid == wpid:
3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
180 win32gui.ShowWindow(hwnd, win32con.SW_HIDE)
3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
181
3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
182 pid = win32process.GetCurrentProcessId()
3af4b39afe2a cmdutil: hide child window created by win32 spawndetached()
Patrick Mezard <pmezard@gmail.com>
parents: 10219
diff changeset
183 win32gui.EnumWindows(callback, pid)