tests/notcapable

largefiles: adapt verify to batched remote statlfile (issue3780)

9e1616307c4c introduced batching of statlfile, but not all codepaths got
converted.

'hg verify' with a remotestore could thus crash with
  TypeError: 'builtin_function_or_method' object is not iterable

Also, the 'hash' variable was used without assigning to it. Don't use variable
names that collide with Python built-in functions. Instead we use 'expecthash'
as in localstore.

The tests for this issue covers an untested area. The tests happens to also
reveal incorrect attempts at getting non-existing largefiles, bad server side
handling of that, and corruption issues - all to be fixed later.

# Disable the $CAP wire protocol capability.

if test -z "$CAP"
then
    echo "CAP environment variable not set."
fi

cat > notcapable-$CAP.py << EOF
from mercurial import extensions, peer, localrepo
def extsetup():
    extensions.wrapfunction(peer.peerrepository, 'capable', wrapcapable)
    extensions.wrapfunction(localrepo.localrepository, 'peer', wrappeer)
def wrapcapable(orig, self, name, *args, **kwargs):
    if name in '$CAP'.split(' '):
        return False
    return orig(self, name, *args, **kwargs)
def wrappeer(orig, self):
    # Since we're disabling some newer features, we need to make sure local
    # repos add in the legacy features again.
    return localrepo.locallegacypeer(self)
EOF

echo '[extensions]' >> $HGRCPATH
echo "notcapable-$CAP = `pwd`/notcapable-$CAP.py" >> $HGRCPATH