Mercurial > hg
annotate tests/test-filecache.py @ 46874:84a93fa7ecfd
revlog-compression: use zstd by default (if available)
As see in changeset bb271ec2fbfb, zstd is 20% to 50% faster for reading and
writing.
Use take advantage of the new config behavior to try zstd by default, falling
back to zlib is zstd is not available on that plateform.
Differential Revision: https://phab.mercurial-scm.org/D10326
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Tue, 06 Apr 2021 18:55:19 +0200 |
parents | e01ea8325859 |
children | 6000f5b25c9b |
rev | line source |
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1 from __future__ import absolute_import, print_function |
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2 import os |
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3 import stat |
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4 import subprocess |
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5 import sys |
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7 if subprocess.call( |
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8 [sys.executable, '%s/hghave' % os.environ['TESTDIR'], 'cacheable'] |
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9 ): |
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11 | |
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12 print_ = print |
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13 |
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14 |
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15 def print(*args, **kwargs): |
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16 """print() wrapper that flushes stdout buffers to avoid py3 buffer issues |
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17 |
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18 We could also just write directly to sys.stdout.buffer the way the |
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19 ui object will, but this was easier for porting the test. |
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20 """ |
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21 print_(*args, **kwargs) |
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22 sys.stdout.flush() |
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23 |
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24 |
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25 from mercurial import ( |
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26 extensions, |
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27 hg, |
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28 localrepo, |
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29 pycompat, |
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30 ui as uimod, |
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31 util, |
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32 vfs as vfsmod, |
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33 ) |
14928 | 34 |
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35 if pycompat.ispy3: |
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36 xrange = range |
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37 |
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38 |
14928 | 39 class fakerepo(object): |
40 def __init__(self): | |
41 self._filecache = {} | |
42 | |
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43 class fakevfs(object): |
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44 def join(self, p): |
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45 return p |
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46 |
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47 vfs = fakevfs() |
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48 |
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49 def unfiltered(self): |
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50 return self |
14928 | 51 |
52 def sjoin(self, p): | |
53 return p | |
54 | |
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55 @localrepo.repofilecache('x', 'y') |
14928 | 56 def cached(self): |
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57 print('creating') |
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58 return 'string from function' |
14928 | 59 |
60 def invalidate(self): | |
61 for k in self._filecache: | |
62 try: | |
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63 delattr(self, pycompat.sysstr(k)) |
14928 | 64 except AttributeError: |
65 pass | |
66 | |
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67 |
14928 | 68 def basic(repo): |
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69 print("* neither file exists") |
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70 # calls function |
14928 | 71 repo.cached |
72 | |
73 repo.invalidate() | |
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74 print("* neither file still exists") |
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75 # uses cache |
14928 | 76 repo.cached |
77 | |
78 # create empty file | |
79 f = open('x', 'w') | |
80 f.close() | |
81 repo.invalidate() | |
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82 print("* empty file x created") |
14928 | 83 # should recreate the object |
84 repo.cached | |
85 | |
86 f = open('x', 'w') | |
87 f.write('a') | |
88 f.close() | |
89 repo.invalidate() | |
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90 print("* file x changed size") |
14928 | 91 # should recreate the object |
92 repo.cached | |
93 | |
94 repo.invalidate() | |
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95 print("* nothing changed with either file") |
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96 # stats file again, reuses object |
14928 | 97 repo.cached |
98 | |
99 # atomic replace file, size doesn't change | |
100 # hopefully st_mtime doesn't change as well so this doesn't use the cache | |
101 # because of inode change | |
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102 f = vfsmod.vfs(b'.')(b'x', b'w', atomictemp=True) |
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103 f.write(b'b') |
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104 f.close() |
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106 repo.invalidate() | |
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107 print("* file x changed inode") |
14928 | 108 repo.cached |
109 | |
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110 # create empty file y |
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111 f = open('y', 'w') |
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112 f.close() |
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113 repo.invalidate() |
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114 print("* empty file y created") |
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115 # should recreate the object |
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116 repo.cached |
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117 |
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118 f = open('y', 'w') |
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119 f.write('A') |
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120 f.close() |
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121 repo.invalidate() |
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122 print("* file y changed size") |
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123 # should recreate the object |
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124 repo.cached |
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125 |
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126 f = vfsmod.vfs(b'.')(b'y', b'w', atomictemp=True) |
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127 f.write(b'B') |
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128 f.close() |
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129 |
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130 repo.invalidate() |
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131 print("* file y changed inode") |
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132 repo.cached |
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133 |
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134 f = vfsmod.vfs(b'.')(b'x', b'w', atomictemp=True) |
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135 f.write(b'c') |
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136 f.close() |
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137 f = vfsmod.vfs(b'.')(b'y', b'w', atomictemp=True) |
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138 f.write(b'C') |
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139 f.close() |
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140 |
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141 repo.invalidate() |
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142 print("* both files changed inode") |
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143 repo.cached |
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144 |
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145 |
14928 | 146 def fakeuncacheable(): |
147 def wrapcacheable(orig, *args, **kwargs): | |
148 return False | |
149 | |
150 def wrapinit(orig, *args, **kwargs): | |
151 pass | |
152 | |
153 originit = extensions.wrapfunction(util.cachestat, '__init__', wrapinit) | |
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154 origcacheable = extensions.wrapfunction( |
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155 util.cachestat, 'cacheable', wrapcacheable |
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156 ) |
14928 | 157 |
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158 for fn in ['x', 'y']: |
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159 try: |
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160 os.remove(fn) |
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161 except OSError: |
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162 pass |
14928 | 163 |
164 basic(fakerepo()) | |
165 | |
166 util.cachestat.cacheable = origcacheable | |
167 util.cachestat.__init__ = originit | |
168 | |
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169 |
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170 def test_filecache_synced(): |
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172 os.system('hg init && echo a >> a && hg ci -qAm.') |
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173 repo = hg.repository(uimod.ui.load()) |
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174 # first rollback clears the filecache, but changelog to stays in __dict__ |
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175 repo.rollback() |
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176 repo.commit(b'.') |
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177 # second rollback comes along and touches the changelog externally |
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178 # (file is moved) |
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179 repo.rollback() |
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180 # but since changelog isn't under the filecache control anymore, we don't |
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181 # see that it changed, and return the old changelog without reconstructing |
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182 # it |
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183 repo.commit(b'.') |
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184 |
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185 |
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186 def setbeforeget(repo): |
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187 os.remove('x') |
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188 os.remove('y') |
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189 repo.__class__.cached.set(repo, 'string set externally') |
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190 repo.invalidate() |
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191 print("* neither file exists") |
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192 print(repo.cached) |
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193 repo.invalidate() |
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194 f = open('x', 'w') |
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195 f.write('a') |
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196 f.close() |
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197 print("* file x created") |
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198 print(repo.cached) |
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199 |
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200 repo.__class__.cached.set(repo, 'string 2 set externally') |
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201 repo.invalidate() |
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202 print("* string set externally again") |
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203 print(repo.cached) |
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204 |
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205 repo.invalidate() |
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206 f = open('y', 'w') |
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207 f.write('b') |
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208 f.close() |
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209 print("* file y created") |
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210 print(repo.cached) |
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211 |
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212 |
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213 def antiambiguity(): |
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214 filename = 'ambigcheck' |
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215 |
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216 # try some times, because reproduction of ambiguity depends on |
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217 # "filesystem time" |
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218 for i in xrange(5): |
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219 fp = open(filename, 'w') |
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220 fp.write('FOO') |
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221 fp.close() |
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222 |
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223 oldstat = os.stat(filename) |
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224 if oldstat[stat.ST_CTIME] != oldstat[stat.ST_MTIME]: |
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225 # subsequent changing never causes ambiguity |
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226 continue |
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227 |
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228 repetition = 3 |
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229 |
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230 # repeat changing via checkambigatclosing, to examine whether |
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231 # st_mtime is advanced multiple times as expected |
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232 for i in xrange(repetition): |
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233 # explicit closing |
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234 fp = vfsmod.checkambigatclosing(open(filename, 'a')) |
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235 fp.write('FOO') |
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236 fp.close() |
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237 |
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238 # implicit closing by "with" statement |
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239 with vfsmod.checkambigatclosing(open(filename, 'a')) as fp: |
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240 fp.write('BAR') |
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241 |
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242 newstat = os.stat(filename) |
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243 if oldstat[stat.ST_CTIME] != newstat[stat.ST_CTIME]: |
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244 # timestamp ambiguity was naturally avoided while repetition |
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245 continue |
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246 |
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247 # st_mtime should be advanced "repetition * 2" times, because |
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248 # all changes occurred at same time (in sec) |
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249 expected = (oldstat[stat.ST_MTIME] + repetition * 2) & 0x7FFFFFFF |
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250 if newstat[stat.ST_MTIME] != expected: |
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251 print( |
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252 "'newstat[stat.ST_MTIME] %s is not %s (as %s + %s * 2)" |
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253 % ( |
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254 newstat[stat.ST_MTIME], |
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255 expected, |
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256 oldstat[stat.ST_MTIME], |
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257 repetition, |
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258 ) |
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259 ) |
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260 |
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261 # no more examination is needed regardless of result |
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262 break |
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263 else: |
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264 # This platform seems too slow to examine anti-ambiguity |
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265 # of file timestamp (or test happened to be executed at |
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266 # bad timing). Exit silently in this case, because running |
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267 # on other faster platforms can detect problems |
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268 pass |
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269 |
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270 |
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271 print('basic:') |
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272 print() |
14928 | 273 basic(fakerepo()) |
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274 print() |
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275 print('fakeuncacheable:') |
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276 print() |
14928 | 277 fakeuncacheable() |
18313
3e4a944c0d04
destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
Idan Kamara <idankk86@gmail.com>
parents:
16688
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changeset
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278 test_filecache_synced() |
28742
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
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changeset
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279 print() |
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
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280 print('setbeforeget:') |
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
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281 print() |
18316
f36375576ed5
filecache: create an entry in _filecache when __set__ is called for a missing one
Idan Kamara <idankk86@gmail.com>
parents:
18313
diff
changeset
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282 setbeforeget(fakerepo()) |
29995
57830bd0e787
scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
28803
diff
changeset
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283 print() |
57830bd0e787
scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
28803
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changeset
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284 print('antiambiguity:') |
57830bd0e787
scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
28803
diff
changeset
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285 print() |
57830bd0e787
scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
28803
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changeset
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286 antiambiguity() |