tests/notcapable

fileset: use filectx.isbinary() to filter out binaries in eol()

Since LFS stores the binary attribute in the pointer file, this means that the
file doesn't need to be downloaded in order to be skipped.  This function also
catches an IOError if the data can't be loaded in the non-LFS case.

I wonder if it's worth storing the unix/dos attributes in the pointer file as
well, though I'd expect LFS files to be binary most of the time.

# Disable the $CAP wire protocol capability.

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

cat > notcapable-$CAP.py << EOF
from mercurial import extensions, localrepo, repository
def extsetup():
    extensions.wrapfunction(repository.peer, 'capable', wrapcapable)
    extensions.wrapfunction(localrepo.localrepository, 'peer', wrappeer)
def wrapcapable(orig, self, name, *args, **kwargs):
    if name in '$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