view tests/test-propertycache.py @ 28240:1ac8ce137377

changegroup: fix treemanifests on merges

The current code for generating treemanifest revisions takes the list
of files in the changeset and finds the directories from them. This
does not work for merges, since a merge may pick file A from one side
and file B from another and neither of them would appear in the
changeset's "files" list, but the manifest would still change.

Fix this by instead walking the root manifest log for all needed
revisions, storing all needed file and subdirectory revisions, then
recursively visiting the subdirectories. This also turns out to be
faster: cloning a version of hg core converted to treemanifests went
from ~28s to ~19s (timing somewhat unfair: before this patch, timed
until crash; after this patch, timed until manifests complete).

The new algorithm is used only on treemanifest repos. Although it
works equally well on flat manifests, we leave the iteration over
files in the changeset for flat manifests for now.

"""test behavior of propertycache and unfiltered propertycache

The repoview overlay is quite complex. We test the behavior of
property cache of both localrepo and repoview to prevent
regression."""

import os, subprocess
import mercurial.localrepo
import mercurial.repoview
import mercurial.util
import mercurial.hg
import mercurial.ui as uimod


# create some special property cache that trace they call

calllog = []
@mercurial.util.propertycache
def testcachedfoobar(repo):
    name = repo.filtername
    if name is None:
        name = ''
    val = len(name)
    calllog.append(val)
    return val

unficalllog = []
@mercurial.localrepo.unfilteredpropertycache
def testcachedunfifoobar(repo):
    name = repo.filtername
    if name is None:
        name = ''
    val = 100 + len(name)
    unficalllog.append(val)
    return val

#plug them on repo
mercurial.localrepo.localrepository.testcachedfoobar = testcachedfoobar
mercurial.localrepo.localrepository.testcachedunfifoobar = testcachedunfifoobar


# Create an empty repo and instantiate it. It is important to run
# these tests on the real object to detect regression.
repopath = os.path.join(os.environ['TESTTMP'], 'repo')
assert subprocess.call(['hg', 'init', repopath]) == 0
ui = uimod.ui()
repo = mercurial.hg.repository(ui, path=repopath).unfiltered()


print ''
print '=== property cache ==='
print ''
print 'calllog:', calllog
print 'cached value (unfiltered):',
print vars(repo).get('testcachedfoobar', 'NOCACHE')

print ''
print '= first access on unfiltered, should do a call'
print 'access:', repo.testcachedfoobar
print 'calllog:', calllog
print 'cached value (unfiltered):',
print vars(repo).get('testcachedfoobar', 'NOCACHE')

print ''
print '= second access on unfiltered, should not do call'
print 'access', repo.testcachedfoobar
print 'calllog:', calllog
print 'cached value (unfiltered):',
print vars(repo).get('testcachedfoobar', 'NOCACHE')

print ''
print '= first access on "visible" view, should do a call'
visibleview = repo.filtered('visible')
print 'cached value ("visible" view):',
print vars(visibleview).get('testcachedfoobar', 'NOCACHE')
print 'access:', visibleview.testcachedfoobar
print 'calllog:', calllog
print 'cached value (unfiltered):',
print vars(repo).get('testcachedfoobar', 'NOCACHE')
print 'cached value ("visible" view):',
print vars(visibleview).get('testcachedfoobar', 'NOCACHE')

print ''
print '= second access on "visible view", should not do call'
print 'access:', visibleview.testcachedfoobar
print 'calllog:', calllog
print 'cached value (unfiltered):',
print vars(repo).get('testcachedfoobar', 'NOCACHE')
print 'cached value ("visible" view):',
print vars(visibleview).get('testcachedfoobar', 'NOCACHE')

print ''
print '= no effect on other view'
immutableview = repo.filtered('immutable')
print 'cached value ("immutable" view):',
print vars(immutableview).get('testcachedfoobar', 'NOCACHE')
print 'access:', immutableview.testcachedfoobar
print 'calllog:', calllog
print 'cached value (unfiltered):',
print vars(repo).get('testcachedfoobar', 'NOCACHE')
print 'cached value ("visible" view):',
print vars(visibleview).get('testcachedfoobar', 'NOCACHE')
print 'cached value ("immutable" view):',
print vars(immutableview).get('testcachedfoobar', 'NOCACHE')

# unfiltered property cache test
print ''
print ''
print '=== unfiltered property cache ==='
print ''
print 'unficalllog:', unficalllog
print 'cached value (unfiltered):      ',
print vars(repo).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("visible" view):  ',
print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("immutable" view):',
print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE')

print ''
print '= first access on unfiltered, should do a call'
print 'access (unfiltered):', repo.testcachedunfifoobar
print 'unficalllog:', unficalllog
print 'cached value (unfiltered):      ',
print vars(repo).get('testcachedunfifoobar', 'NOCACHE')

print ''
print '= second access on unfiltered, should not do call'
print 'access (unfiltered):', repo.testcachedunfifoobar
print 'unficalllog:', unficalllog
print 'cached value (unfiltered):      ',
print vars(repo).get('testcachedunfifoobar', 'NOCACHE')

print ''
print '= access on view should use the unfiltered cache'
print 'access (unfiltered):      ', repo.testcachedunfifoobar
print 'access ("visible" view):  ', visibleview.testcachedunfifoobar
print 'access ("immutable" view):', immutableview.testcachedunfifoobar
print 'unficalllog:', unficalllog
print 'cached value (unfiltered):      ',
print vars(repo).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("visible" view):  ',
print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("immutable" view):',
print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE')

print ''
print '= even if we clear the unfiltered cache'
del repo.__dict__['testcachedunfifoobar']
print 'cached value (unfiltered):      ',
print vars(repo).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("visible" view):  ',
print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("immutable" view):',
print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE')
print 'unficalllog:', unficalllog
print 'access ("visible" view):  ', visibleview.testcachedunfifoobar
print 'unficalllog:', unficalllog
print 'cached value (unfiltered):      ',
print vars(repo).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("visible" view):  ',
print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("immutable" view):',
print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE')
print 'access ("immutable" view):', immutableview.testcachedunfifoobar
print 'unficalllog:', unficalllog
print 'cached value (unfiltered):      ',
print vars(repo).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("visible" view):  ',
print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("immutable" view):',
print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE')
print 'access (unfiltered):      ', repo.testcachedunfifoobar
print 'unficalllog:', unficalllog
print 'cached value (unfiltered):      ',
print vars(repo).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("visible" view):  ',
print vars(visibleview).get('testcachedunfifoobar', 'NOCACHE')
print 'cached value ("immutable" view):',
print vars(immutableview).get('testcachedunfifoobar', 'NOCACHE')