git checkout-index --prefix="$D/" -a
pushd "$D"
+# So we don't confuse the inner git invocations inside the tests with
+# the outer git invocation that's trying to commit a change.
+unset GIT_AUTHOR_DATE
+unset GIT_AUTHOR_EMAIL
+unset GIT_AUTHOR_NAME
+unset GIT_CONFIG_PARAMETERS
+unset GIT_EXEC_PATH
+unset GIT_INDEX_FILE
+unset GIT_PREFIX
+
nix-shell --arg lint true --run './test.sh lint'
popd