if ! command git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
  print "${0}: not a repository work tree: ${PWD}" >&2
  return 1
fi

local commit

for commit in "${@}"; do
  git update-ref \
    -m "$(command git log -1 --pretty="format:%s" "$commit")" refs/stash "${commit}"
done