lfs: introduce a user level cache for lfs files
This is the same mechanism in place for largefiles, and solves several problems
working with multiple local repositories. The existing largefiles method is
reused in place, because I suspect that there are other functions that can be
shared. If we wait a bit to identify more before `hg cp lfutil.py ...`, the
history will be easier to trace.
The push between repo14 and repo15 in test-lfs.t arguably shouldn't be uploading
any files with a local push. Maybe we can revisit that when `hg push` without
'lfs.url' can upload files to the push destination. Then it would be consistent
for blobs in a local push to be linked to the local destination's cache.
The cache property is added to run-tests.py, the same as the largefiles
property, so that test generated files don't pollute the real location. Having
files available locally broke a couple existing lfs-test-server tests, so the
cache is cleared in a few places to force file download.
syntax: glob
*.elc
*.tmp
*.orig
*.rej
*~
*.mergebackup
*.o
*.so
*.dll
*.exe
*.pyd
*.pyc
*.pyo
*$py.class
*.swp
*.prof
*.zip
\#*\#
.\#*
tests/.coverage*
tests/.testtimes*
tests/.hypothesis
tests/hypothesis-generated
tests/annotated
tests/exceptions
tests/*.err
tests/htmlcov
build
contrib/chg/chg
contrib/hgsh/hgsh
contrib/vagrant/.vagrant
contrib/docker/debian-*
contrib/docker/ubuntu-*
dist
packages
doc/common.txt
doc/*.[0-9]
doc/*.[0-9].txt
doc/*.[0-9].gendoc.txt
doc/*.[0-9].{x,ht}ml
MANIFEST
MANIFEST.in
patches
mercurial/__modulepolicy__.py
mercurial/__version__.py
mercurial/hgpythonlib.h
mercurial.egg-info
.DS_Store
tags
cscope.*
.idea/*
.asv/*
i18n/hg.pot
locale/*/LC_MESSAGES/hg.mo
hgext/__index__.py
# Generated wheels
wheelhouse/
syntax: regexp
^\.pc/
^\.(pydev)?project
# hackable windows distribution additions
^hg-python
^hg.py$