dirstate: remove the python-side whitelist of allowed matchers
This whitelist is too permissive because it allows matchers that contain
disallowed ones deep inside, for example through `intersectionmatcher`.
It is also too restrictive because it doesn't pass through
some of the matchers we support, such as `patternmatcher`.
It's also unnecessary because unsupported matchers raise
`FallbackError` and we fall back anyway.
Making this change makes more of the tests use rust code path,
and therefore subtly change behavior. For example, rust status
in largefiles repos seems to have strange behavior.
#!/bin/bash
#
# Make sure to patch mercurial to create the delta against nullrev
#
# # Parent cdb85d0512b81031d4a7b30d6a5ddbe69ef1a876
#
# diff --git a/mercurial/revlogutils/deltas.py b/mercurial/revlogutils/deltas.py
# --- a/mercurial/revlogutils/deltas.py
# +++ b/mercurial/revlogutils/deltas.py
# @@ -1117,7 +1117,10 @@ class deltacomputer:
# candidaterevs = next(groups)
#
# if deltainfo is None:
# - deltainfo = self._fullsnapshotinfo(fh, revinfo, target_rev)
# + if revlog.delta_config.general_delta:
# + deltainfo = self._builddeltainfo(revinfo, nullrev, fh)
# + else:
# + deltainfo = self._fullsnapshotinfo(fh, revinfo, target_rev)
cd "`dirname \"$0\"`"
export HGRCPATH=
export HGMODULEPOLICY=py
rm -rf nullrev-diff
../../hg init nullrev-diff --config format.revlog-compression=zlib
cd nullrev-diff
echo hi > a
../../../hg commit -Am root-B
echo ho > a
../../../hg commit -Am child-A
hg up null
echo ha > a
../../../hg commit -Am root-A
../../../hg debugdeltachain a --all-info
rm -rf .hg/cache/ .hg/wcache/
cd ..
tar cf test-revlog-diff-relative-to-nullrev.tar nullrev-diff
rm -rf nullrev-diff