gistfile1.txt

#!/nix/store/x0dcb2rxlzf32g0ddfkqqz1sfcyx4yay-bash-4.4-p23/bin/bash
dir=${1:-.}
if [ -f package.yaml ]; then
  echo package.yaml |
    /nix/store/lznm6jcb8kpq7vw28adcagdwfnk6dd7l-entr-4.9/bin/entr -r -- \
      sh -c "hpack && cached-nix-shell $dir --keep XDG_DATA_DIRS --run 'hoogle server --local'"
else
  echo *.cabal |
    /nix/store/lznm6jcb8kpq7vw28adcagdwfnk6dd7l-entr-4.9/bin/entr -r -- \
      sh -c "cached-nix-shell $dir --keep XDG_DATA_DIRS --run 'hoogle server --local'"
fi