tags-cache: skip the filternode step if we are not going to use it
When warming the hgtagsfnodescache, we don't need the actual result, so we can
simply skip the part that "filter" fnode we read from the cache. So provide a
quite visible speed up to the top level `hg debugupdatecache` function.
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# benchmark.name = hg.debug.debug-update-cache
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.pre-state = warm
before: 19.947581
after: 18.916804 (-5.17%, -1.03)
#!/bin/bash
set -e
set -u
# Find the python3 setup that would run pytype
PYTYPE=`which pytype`
PYTHON3=`head -n1 ${PYTYPE} | sed -s 's/#!//'`
# Existing stubs that pytype processes live here
TYPESHED=$(${PYTHON3} -c "import pytype; print(pytype.__path__[0])")/typeshed/stubs
HG_STUBS=${TYPESHED}/mercurial
echo "Patching typeshed at $HG_STUBS"
rm -rf ${HG_STUBS}
mkdir -p ${HG_STUBS}
cat > ${HG_STUBS}/METADATA.toml <<EOF
version = "0.1"
EOF
mkdir -p ${HG_STUBS}/mercurial/cext ${HG_STUBS}/mercurial/thirdparty/attr
touch ${HG_STUBS}/mercurial/__init__.pyi
touch ${HG_STUBS}/mercurial/cext/__init__.pyi
touch ${HG_STUBS}/mercurial/thirdparty/__init__.pyi
ln -sf $(hg root)/mercurial/cext/*.{pyi,typed} \
${HG_STUBS}/mercurial/cext
ln -sf $(hg root)/mercurial/thirdparty/attr/*.{pyi,typed} \
${HG_STUBS}/mercurial/thirdparty/attr