clfilter: add a propertycache that must be unfiltered
Some of the localrepo property caches must be computed unfiltered and
stored globally. Some others must see the filtered version and store data
relative to the current filtering.
This changeset introduces two classes `unfilteredpropertycache`
and `filteredpropertycache` for this purpose. A new function
`hasunfilteredcache` is introduced for unambiguous checking for cached
values on unfiltered repos.
A few tweaks are made to the property cache class to allow overriding
the way the computed value is stored on the object.
Some logic relative to _tagcaches is cleaned up in the process.
syntax: glob
*.elc
*.orig
*.rej
*~
*.mergebackup
*.o
*.so
*.dll
*.exe
*.pyd
*.pyc
*.pyo
*$py.class
*.swp
*.prof
*.zip
\#*\#
.\#*
tests/.coverage*
tests/annotated
tests/*.err
tests/htmlcov
build
contrib/hgsh/hgsh
dist
doc/*.[0-9]
doc/*.[0-9].gendoc.txt
doc/*.[0-9].{x,ht}ml
MANIFEST
MANIFEST.in
patches
mercurial/__version__.py
mercurial/hgpythonlib.h
mercurial.egg-info
.DS_Store
tags
cscope.*
i18n/hg.pot
locale/*/LC_MESSAGES/hg.mo
hgext/__index__.py
# files installed with a local --pure build
mercurial/base85.py
mercurial/bdiff.py
mercurial/diffhelpers.py
mercurial/mpatch.py
mercurial/osutil.py
mercurial/parsers.py
syntax: regexp
^\.pc/
^\.(pydev)?project
# hackable windows distribution additions
^hg-python
^hg.py$