annotate tests/test-filecache.py @ 24762:1062663808ce

tags: write a separate tags cache file for unfiltered repos Since we changed the format of the tags cache, we should bump the filename. Before this patch, "tags" was being used for unfiltered repositories. Change the naming scheme to be consistent and ensure that a new cache file is used. While I was here, I updated the docs to describe the existence of multiple caches. I also added explicit test coverage for the creation of the unfiltered tags cache.
author Gregory Szorc <gregory.szorc@gmail.com>
date Thu, 16 Apr 2015 11:54:13 -0400
parents b3684fd2ff1a
children ce26928cbe41
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1 import sys, os, subprocess
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2
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3 if subprocess.call(['python', '%s/hghave' % os.environ['TESTDIR'],
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4 'cacheable']):
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5 sys.exit(80)
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6
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7 from mercurial import util, scmutil, extensions, hg, ui
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8
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9 filecache = scmutil.filecache
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10
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11 class fakerepo(object):
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12 def __init__(self):
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13 self._filecache = {}
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14
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15 def join(self, p):
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16 return p
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17
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18 def sjoin(self, p):
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19 return p
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20
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21 @filecache('x', 'y')
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22 def cached(self):
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23 print 'creating'
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24 return 'string from function'
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25
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26 def invalidate(self):
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27 for k in self._filecache:
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28 try:
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29 delattr(self, k)
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30 except AttributeError:
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31 pass
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32
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33 def basic(repo):
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34 print "* neither file exists"
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35 # calls function
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36 repo.cached
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37
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38 repo.invalidate()
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39 print "* neither file still exists"
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40 # uses cache
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41 repo.cached
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42
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43 # create empty file
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44 f = open('x', 'w')
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45 f.close()
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46 repo.invalidate()
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47 print "* empty file x created"
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48 # should recreate the object
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49 repo.cached
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50
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51 f = open('x', 'w')
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52 f.write('a')
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53 f.close()
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54 repo.invalidate()
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55 print "* file x changed size"
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56 # should recreate the object
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57 repo.cached
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58
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59 repo.invalidate()
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60 print "* nothing changed with either file"
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61 # stats file again, reuses object
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62 repo.cached
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63
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64 # atomic replace file, size doesn't change
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65 # hopefully st_mtime doesn't change as well so this doesn't use the cache
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66 # because of inode change
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67 f = scmutil.opener('.')('x', 'w', atomictemp=True)
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68 f.write('b')
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69 f.close()
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70
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71 repo.invalidate()
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72 print "* file x changed inode"
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73 repo.cached
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74
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75 # create empty file y
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76 f = open('y', 'w')
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77 f.close()
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78 repo.invalidate()
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79 print "* empty file y created"
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80 # should recreate the object
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81 repo.cached
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82
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83 f = open('y', 'w')
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84 f.write('A')
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85 f.close()
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86 repo.invalidate()
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87 print "* file y changed size"
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88 # should recreate the object
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89 repo.cached
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90
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91 f = scmutil.opener('.')('y', 'w', atomictemp=True)
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92 f.write('B')
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93 f.close()
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94
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95 repo.invalidate()
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96 print "* file y changed inode"
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97 repo.cached
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98
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99 f = scmutil.opener('.')('x', 'w', atomictemp=True)
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100 f.write('c')
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101 f.close()
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102 f = scmutil.opener('.')('y', 'w', atomictemp=True)
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103 f.write('C')
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104 f.close()
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105
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106 repo.invalidate()
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107 print "* both files changed inode"
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108 repo.cached
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109
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110 def fakeuncacheable():
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111 def wrapcacheable(orig, *args, **kwargs):
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112 return False
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113
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114 def wrapinit(orig, *args, **kwargs):
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115 pass
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116
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117 originit = extensions.wrapfunction(util.cachestat, '__init__', wrapinit)
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118 origcacheable = extensions.wrapfunction(util.cachestat, 'cacheable',
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119 wrapcacheable)
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120
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121 for fn in ['x', 'y']:
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122 try:
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123 os.remove(fn)
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124 except OSError:
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125 pass
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126
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127 basic(fakerepo())
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128
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129 util.cachestat.cacheable = origcacheable
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130 util.cachestat.__init__ = originit
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131
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132 def test_filecache_synced():
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133 # test old behaviour that caused filecached properties to go out of sync
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134 os.system('hg init && echo a >> a && hg ci -qAm.')
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135 repo = hg.repository(ui.ui())
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136 # first rollback clears the filecache, but changelog to stays in __dict__
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137 repo.rollback()
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138 repo.commit('.')
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139 # second rollback comes along and touches the changelog externally
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140 # (file is moved)
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141 repo.rollback()
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Idan Kamara <idankk86@gmail.com>
parents: 16688
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142 # but since changelog isn't under the filecache control anymore, we don't
3e4a944c0d04 destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
Idan Kamara <idankk86@gmail.com>
parents: 16688
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143 # see that it changed, and return the old changelog without reconstructing
3e4a944c0d04 destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
Idan Kamara <idankk86@gmail.com>
parents: 16688
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144 # it
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Idan Kamara <idankk86@gmail.com>
parents: 16688
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145 repo.commit('.')
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Idan Kamara <idankk86@gmail.com>
parents: 16688
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146
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147 def setbeforeget(repo):
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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148 os.remove('x')
20045
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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149 os.remove('y')
20040
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Siddharth Agarwal <sid0@fb.com>
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150 repo.cached = 'string set externally'
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parents: 18313
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151 repo.invalidate()
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152 print "* neither file exists"
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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153 print repo.cached
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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154 repo.invalidate()
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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155 f = open('x', 'w')
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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156 f.write('a')
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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157 f.close()
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158 print "* file x created"
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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159 print repo.cached
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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160
20045
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Siddharth Agarwal <sid0@fb.com>
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161 repo.cached = 'string 2 set externally'
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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162 repo.invalidate()
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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163 print "* string set externally again"
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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164 print repo.cached
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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165
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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166 repo.invalidate()
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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167 f = open('y', 'w')
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168 f.write('b')
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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169 f.close()
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170 print "* file y created"
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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171 print repo.cached
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Siddharth Agarwal <sid0@fb.com>
parents: 20041
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172
14928
dca59d5be12d scmutil: introduce filecache
Idan Kamara <idankk86@gmail.com>
parents:
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173 print 'basic:'
dca59d5be12d scmutil: introduce filecache
Idan Kamara <idankk86@gmail.com>
parents:
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174 print
dca59d5be12d scmutil: introduce filecache
Idan Kamara <idankk86@gmail.com>
parents:
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175 basic(fakerepo())
dca59d5be12d scmutil: introduce filecache
Idan Kamara <idankk86@gmail.com>
parents:
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176 print
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Idan Kamara <idankk86@gmail.com>
parents:
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177 print 'fakeuncacheable:'
dca59d5be12d scmutil: introduce filecache
Idan Kamara <idankk86@gmail.com>
parents:
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178 print
dca59d5be12d scmutil: introduce filecache
Idan Kamara <idankk86@gmail.com>
parents:
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179 fakeuncacheable()
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Idan Kamara <idankk86@gmail.com>
parents: 16688
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180 test_filecache_synced()
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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181 print
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Idan Kamara <idankk86@gmail.com>
parents: 18313
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182 print 'setbeforeget:'
f36375576ed5 filecache: create an entry in _filecache when __set__ is called for a missing one
Idan Kamara <idankk86@gmail.com>
parents: 18313
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183 print
f36375576ed5 filecache: create an entry in _filecache when __set__ is called for a missing one
Idan Kamara <idankk86@gmail.com>
parents: 18313
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184 setbeforeget(fakerepo())