author | Raphaël Gomès <rgomes@octobus.net> |
Thu, 23 Mar 2023 22:01:34 +0100 | |
branch | stable |
changeset 50357 | f14864fffdca |
parent 49988 | 09367b3d23d8 |
permissions | -rw-r--r-- |
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import os |
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import stat |
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import subprocess |
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import sys |
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if subprocess.call( |
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[sys.executable, '%s/hghave' % os.environ['TESTDIR'], 'cacheable'] |
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): |
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sys.exit(80) |
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print_ = print |
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def print(*args, **kwargs): |
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"""print() wrapper that flushes stdout buffers to avoid py3 buffer issues |
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We could also just write directly to sys.stdout.buffer the way the |
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ui object will, but this was easier for porting the test. |
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""" |
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print_(*args, **kwargs) |
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sys.stdout.flush() |
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test-filecache: sort import lines
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from mercurial import ( |
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test-filecache: sort import lines
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extensions, |
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hg, |
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localrepo, |
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pycompat, |
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ui as uimod, |
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util, |
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vfs as vfsmod, |
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) |
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class fakerepo: |
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def __init__(self): |
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self._filecache = {} |
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class fakevfs: |
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def join(self, p): |
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return p |
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vfs = fakevfs() |
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def unfiltered(self): |
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return self |
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def sjoin(self, p): |
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return p |
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@localrepo.repofilecache('x', 'y') |
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def cached(self): |
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print('creating') |
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return 'string from function' |
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def invalidate(self): |
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for k in self._filecache: |
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try: |
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delattr(self, pycompat.sysstr(k)) |
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except AttributeError: |
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pass |
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def basic(repo): |
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print("* neither file exists") |
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# calls function |
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repo.cached |
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repo.invalidate() |
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print("* neither file still exists") |
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# uses cache |
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repo.cached |
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# create empty file |
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f = open('x', 'w') |
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f.close() |
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repo.invalidate() |
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print("* empty file x created") |
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# should recreate the object |
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repo.cached |
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f = open('x', 'w') |
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f.write('a') |
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f.close() |
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repo.invalidate() |
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print("* file x changed size") |
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# should recreate the object |
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repo.cached |
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repo.invalidate() |
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print("* nothing changed with either file") |
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# stats file again, reuses object |
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repo.cached |
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# atomic replace file, size doesn't change |
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# hopefully st_mtime doesn't change as well so this doesn't use the cache |
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# because of inode change |
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f = vfsmod.vfs(b'.')(b'x', b'w', atomictemp=True) |
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f.write(b'b') |
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f.close() |
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repo.invalidate() |
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print("* file x changed inode") |
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repo.cached |
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# create empty file y |
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f = open('y', 'w') |
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f.close() |
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repo.invalidate() |
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print("* empty file y created") |
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# should recreate the object |
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repo.cached |
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f = open('y', 'w') |
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f.write('A') |
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f.close() |
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repo.invalidate() |
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print("* file y changed size") |
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# should recreate the object |
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repo.cached |
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f = vfsmod.vfs(b'.')(b'y', b'w', atomictemp=True) |
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f.write(b'B') |
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f.close() |
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repo.invalidate() |
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print("* file y changed inode") |
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repo.cached |
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f = vfsmod.vfs(b'.')(b'x', b'w', atomictemp=True) |
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f.write(b'c') |
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f.close() |
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f = vfsmod.vfs(b'.')(b'y', b'w', atomictemp=True) |
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f.write(b'C') |
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f.close() |
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repo.invalidate() |
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print("* both files changed inode") |
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repo.cached |
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def fakeuncacheable(): |
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def wrapcacheable(orig, *args, **kwargs): |
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return False |
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def wrapinit(orig, *args, **kwargs): |
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pass |
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originit = extensions.wrapfunction(util.cachestat, '__init__', wrapinit) |
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origcacheable = extensions.wrapfunction( |
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util.cachestat, 'cacheable', wrapcacheable |
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) |
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for fn in ['x', 'y']: |
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try: |
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156 |
os.remove(fn) |
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except OSError: |
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158 |
pass |
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160 |
basic(fakerepo()) |
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161 |
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162 |
util.cachestat.cacheable = origcacheable |
|
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util.cachestat.__init__ = originit |
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164 |
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165 |
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def test_filecache_synced(): |
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# test old behavior that caused filecached properties to go out of sync |
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os.system('hg init && echo a >> a && hg add a && hg ci -qm.') |
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repo = hg.repository(uimod.ui.load()) |
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# first rollback clears the filecache, but changelog to stays in __dict__ |
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repo.rollback() |
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repo.commit(b'.') |
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# second rollback comes along and touches the changelog externally |
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# (file is moved) |
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repo.rollback() |
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# but since changelog isn't under the filecache control anymore, we don't |
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# see that it changed, and return the old changelog without reconstructing |
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178 |
# it |
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repo.commit(b'.') |
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180 |
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181 |
|
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182 |
def setbeforeget(repo): |
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183 |
os.remove('x') |
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184 |
os.remove('y') |
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repo.__class__.cached.set(repo, 'string set externally') |
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186 |
repo.invalidate() |
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print("* neither file exists") |
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188 |
print(repo.cached) |
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189 |
repo.invalidate() |
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190 |
f = open('x', 'w') |
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191 |
f.write('a') |
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192 |
f.close() |
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193 |
print("* file x created") |
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194 |
print(repo.cached) |
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195 |
|
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196 |
repo.__class__.cached.set(repo, 'string 2 set externally') |
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197 |
repo.invalidate() |
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198 |
print("* string set externally again") |
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199 |
print(repo.cached) |
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200 |
|
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201 |
repo.invalidate() |
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202 |
f = open('y', 'w') |
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203 |
f.write('b') |
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204 |
f.close() |
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print("* file y created") |
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206 |
print(repo.cached) |
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207 |
|
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208 |
|
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209 |
def antiambiguity(): |
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210 |
filename = 'ambigcheck' |
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211 |
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212 |
# try some times, because reproduction of ambiguity depends on |
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213 |
# "filesystem time" |
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214 |
for i in range(5): |
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215 |
fp = open(filename, 'w') |
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fp.write('FOO') |
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217 |
fp.close() |
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oldstat = os.stat(filename) |
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220 |
if oldstat[stat.ST_CTIME] != oldstat[stat.ST_MTIME]: |
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221 |
# subsequent changing never causes ambiguity |
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222 |
continue |
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223 |
|
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224 |
repetition = 3 |
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|
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# repeat changing via checkambigatclosing, to examine whether |
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# st_mtime is advanced multiple times as expected |
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for i in range(repetition): |
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229 |
# explicit closing |
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fp = vfsmod.checkambigatclosing(open(filename, 'a')) |
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fp.write('FOO') |
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fp.close() |
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# implicit closing by "with" statement |
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235 |
with vfsmod.checkambigatclosing(open(filename, 'a')) as fp: |
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236 |
fp.write('BAR') |
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237 |
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newstat = os.stat(filename) |
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239 |
if oldstat[stat.ST_CTIME] != newstat[stat.ST_CTIME]: |
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240 |
# timestamp ambiguity was naturally avoided while repetition |
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241 |
continue |
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242 |
|
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243 |
# st_mtime should be advanced "repetition * 2" times, because |
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244 |
# all changes occurred at same time (in sec) |
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expected = (oldstat[stat.ST_MTIME] + repetition * 2) & 0x7FFFFFFF |
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if newstat[stat.ST_MTIME] != expected: |
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print( |
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"'newstat[stat.ST_MTIME] %s is not %s (as %s + %s * 2)" |
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249 |
% ( |
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newstat[stat.ST_MTIME], |
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expected, |
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oldstat[stat.ST_MTIME], |
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253 |
repetition, |
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254 |
) |
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255 |
) |
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256 |
|
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# no more examination is needed regardless of result |
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break |
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259 |
else: |
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# This platform seems too slow to examine anti-ambiguity |
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261 |
# of file timestamp (or test happened to be executed at |
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262 |
# bad timing). Exit silently in this case, because running |
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263 |
# on other faster platforms can detect problems |
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264 |
pass |
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|
265 |
|
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40424
diff
changeset
|
266 |
|
28742
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
|
267 |
print('basic:') |
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
|
268 |
print() |
14928 | 269 |
basic(fakerepo()) |
28742
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
|
270 |
print() |
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
|
271 |
print('fakeuncacheable:') |
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
|
272 |
print() |
14928 | 273 |
fakeuncacheable() |
18313
3e4a944c0d04
destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)
Idan Kamara <idankk86@gmail.com>
parents:
16688
diff
changeset
|
274 |
test_filecache_synced() |
28742
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
|
275 |
print() |
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
|
276 |
print('setbeforeget:') |
a08c90d622eb
py3: use print_function in test-filecache.py
Robert Stanca <robert.stanca7@gmail.com>
parents:
28741
diff
changeset
|
277 |
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
|
278 |
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
|
279 |
print() |
57830bd0e787
scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
28803
diff
changeset
|
280 |
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
|
281 |
print() |
57830bd0e787
scmutil: add file object wrapper class to check ambiguity at closing
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
28803
diff
changeset
|
282 |
antiambiguity() |