Mercurial > hg
annotate tests/test-trusted.py @ 11769:ca6cebd8734e stable
dirstate: ignore symlinks when fs cannot handle them (issue1888)
When the filesystem cannot handle the executable bit, we currently
ignore it completely when looking for modified files. Similarly, it is
impossible to set or clear the bit when the filesystem ignores it.
This patch makes Mercurial treat symbolic links the same way.
Symlinks are a little different since they manifest themselves as
small files containing a filename (the symlink target). On Windows,
these files show up as regular files, and on Linux and Mac they show
up as real symlinks.
Issue1888 presents a case where the symlink files are better ignored
from the Windows side. A Linux client creates symlinks in a working
copy which is shared over a network between Linux and Windows clients.
The Samba server is helpful and defererences the symlink when the
Windows client looks at it. This means that Mercurial on the Windows
side sees file content instead of a file name in the symlink, and
hence flags the link as modified. Ignoring the change would be much
more helpful, similarly to how Mercurial does not report any changes
when executable bits are ignored in a checkout on Windows.
An initial checkout of a symbolic link on a file system that cannot
handle symbolic links will still result in a regular file containing
the target file name as its content. Sharing such a checkout with a
Linux client will not turn the file into a symlink automatically, but
'hg revert' can fix that. After the revert, the Windows client will
see the correct file content (provided by the Samba server when it
follows the link on the Linux side) and otherwise ignore the change.
Running 'hg perfstatus' 10 times gives these results:
Before: After:
min: 0.544703 min: 0.546549
med: 0.547592 med: 0.548881
avg: 0.549146 avg: 0.548549
max: 0.564112 max: 0.551504
The median time is increased about 0.24%.
author | Martin Geisler <mg@aragost.com> |
---|---|
date | Mon, 09 Aug 2010 15:31:56 +0200 |
parents | 543597fae51d |
children | 95b0d4c1c9e1 |
rev | line source |
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1 # Since it's not easy to write a test that portably deals |
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2 # with files from different users/groups, we cheat a bit by |
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3 # monkey-patching some functions in the util module |
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4 |
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5 import os |
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6 from mercurial import ui, util, error |
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7 |
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8 hgrc = os.environ['HGRCPATH'] |
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9 f = open(hgrc) |
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10 basehgrc = f.read() |
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11 f.close() |
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12 |
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13 def testui(user='foo', group='bar', tusers=(), tgroups=(), |
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14 cuser='foo', cgroup='bar', debug=False, silent=False): |
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15 # user, group => owners of the file |
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16 # tusers, tgroups => trusted users/groups |
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17 # cuser, cgroup => user/group of the current process |
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18 |
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19 # write a global hgrc with the list of trusted users/groups and |
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20 # some setting so that we can be sure it was read |
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21 f = open(hgrc, 'w') |
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22 f.write(basehgrc) |
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23 f.write('\n[paths]\n') |
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24 f.write('global = /some/path\n\n') |
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25 |
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26 if tusers or tgroups: |
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27 f.write('[trusted]\n') |
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28 if tusers: |
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29 f.write('users = %s\n' % ', '.join(tusers)) |
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30 if tgroups: |
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31 f.write('groups = %s\n' % ', '.join(tgroups)) |
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32 f.close() |
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33 |
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34 # override the functions that give names to uids and gids |
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35 def username(uid=None): |
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36 if uid is None: |
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37 return cuser |
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38 return user |
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39 util.username = username |
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40 |
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41 def groupname(gid=None): |
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42 if gid is None: |
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43 return 'bar' |
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44 return group |
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45 util.groupname = groupname |
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46 |
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47 def isowner(st): |
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48 return user == cuser |
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49 util.isowner = isowner |
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50 |
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51 # try to read everything |
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52 #print '# File belongs to user %s, group %s' % (user, group) |
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53 #print '# trusted users = %s; trusted groups = %s' % (tusers, tgroups) |
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54 kind = ('different', 'same') |
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55 who = ('', 'user', 'group', 'user and the group') |
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56 trusted = who[(user in tusers) + 2*(group in tgroups)] |
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57 if trusted: |
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58 trusted = ', but we trust the ' + trusted |
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59 print '# %s user, %s group%s' % (kind[user == cuser], kind[group == cgroup], |
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60 trusted) |
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61 |
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62 u = ui.ui() |
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63 u.setconfig('ui', 'debug', str(bool(debug))) |
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64 u.readconfig('.hg/hgrc') |
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65 if silent: |
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66 return u |
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67 print 'trusted' |
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68 for name, path in u.configitems('paths'): |
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69 print ' ', name, '=', path |
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70 print 'untrusted' |
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71 for name, path in u.configitems('paths', untrusted=True): |
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72 print '.', |
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73 u.config('paths', name) # warning with debug=True |
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74 print '.', |
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75 u.config('paths', name, untrusted=True) # no warnings |
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76 print name, '=', path |
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77 print |
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78 |
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79 return u |
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80 |
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81 os.mkdir('repo') |
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82 os.chdir('repo') |
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83 os.mkdir('.hg') |
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84 f = open('.hg/hgrc', 'w') |
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85 f.write('[paths]\n') |
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86 f.write('local = /another/path\n\n') |
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87 f.close() |
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88 |
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89 #print '# Everything is run by user foo, group bar\n' |
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90 |
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91 # same user, same group |
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92 testui() |
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93 # same user, different group |
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94 testui(group='def') |
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95 # different user, same group |
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96 testui(user='abc') |
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97 # ... but we trust the group |
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98 testui(user='abc', tgroups=['bar']) |
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99 # different user, different group |
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100 testui(user='abc', group='def') |
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101 # ... but we trust the user |
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102 testui(user='abc', group='def', tusers=['abc']) |
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103 # ... but we trust the group |
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104 testui(user='abc', group='def', tgroups=['def']) |
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105 # ... but we trust the user and the group |
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106 testui(user='abc', group='def', tusers=['abc'], tgroups=['def']) |
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107 # ... but we trust all users |
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108 print '# we trust all users' |
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109 testui(user='abc', group='def', tusers=['*']) |
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110 # ... but we trust all groups |
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111 print '# we trust all groups' |
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112 testui(user='abc', group='def', tgroups=['*']) |
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113 # ... but we trust the whole universe |
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114 print '# we trust all users and groups' |
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115 testui(user='abc', group='def', tusers=['*'], tgroups=['*']) |
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116 # ... check that users and groups are in different namespaces |
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117 print "# we don't get confused by users and groups with the same name" |
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118 testui(user='abc', group='def', tusers=['def'], tgroups=['abc']) |
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119 # ... lists of user names work |
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120 print "# list of user names" |
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121 testui(user='abc', group='def', tusers=['foo', 'xyz', 'abc', 'bleh'], |
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122 tgroups=['bar', 'baz', 'qux']) |
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123 # ... lists of group names work |
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124 print "# list of group names" |
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125 testui(user='abc', group='def', tusers=['foo', 'xyz', 'bleh'], |
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126 tgroups=['bar', 'def', 'baz', 'qux']) |
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127 |
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128 print "# Can't figure out the name of the user running this process" |
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129 testui(user='abc', group='def', cuser=None) |
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130 |
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131 print "# prints debug warnings" |
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132 u = testui(user='abc', group='def', cuser='foo', debug=True) |
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133 |
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134 print "# ui.readconfig sections" |
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135 filename = 'foobar' |
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136 f = open(filename, 'w') |
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137 f.write('[foobar]\n') |
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138 f.write('baz = quux\n') |
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139 f.close() |
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140 u.readconfig(filename, sections = ['foobar']) |
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141 print u.config('foobar', 'baz') |
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142 |
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143 print |
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144 print "# read trusted, untrusted, new ui, trusted" |
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145 u = ui.ui() |
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146 u.setconfig('ui', 'debug', 'on') |
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147 u.readconfig(filename) |
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148 u2 = u.copy() |
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149 def username(uid=None): |
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150 return 'foo' |
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151 util.username = username |
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152 u2.readconfig('.hg/hgrc') |
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153 print 'trusted:' |
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154 print u2.config('foobar', 'baz') |
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155 print 'untrusted:' |
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156 print u2.config('foobar', 'baz', untrusted=True) |
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157 |
4516
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Removed trailing whitespace and tabs from python files
Thomas Arendsen Hein <thomas@intevation.de>
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158 print |
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159 print "# error handling" |
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160 |
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161 def assertraises(f, exc=util.Abort): |
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162 try: |
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163 f() |
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164 except exc, inst: |
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165 print 'raised', inst.__class__.__name__ |
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166 else: |
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167 print 'no exception?!' |
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168 |
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169 print "# file doesn't exist" |
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170 os.unlink('.hg/hgrc') |
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171 assert not os.path.exists('.hg/hgrc') |
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172 testui(debug=True, silent=True) |
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173 testui(user='abc', group='def', debug=True, silent=True) |
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174 |
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175 print |
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176 print "# parse error" |
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177 f = open('.hg/hgrc', 'w') |
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178 f.write('foo') |
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179 f.close() |
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180 |
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181 try: |
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182 testui(user='abc', group='def', silent=True) |
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183 except error.ParseError, inst: |
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184 print inst |
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185 |
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186 try: |
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187 testui(debug=True, silent=True) |
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188 except error.ParseError, inst: |
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189 print inst |