# yanked from @fufexan
{
  coreutils,
  gnused,
  writeShellScriptBin,
}:
let
  repl = ../../lib/repl;
  example = command: desc: ''\n\u001b[33m ${command}\u001b[0m - ${desc}'';
in
writeShellScriptBin "repl" ''
  case "$1" in
    "-h"|"--help"|"help")
      printf "%b\n\e[4mUsage\e[0m: \
        ${example "repl" "Loads system flake if available."} \
        ${example "repl /path/to/flake.nix" "Loads specified flake."}\n"
    ;;
    *)
      if [ -z "$1" ]; then
        nix repl ${repl}
      else
        nix repl --arg flakePath $(${coreutils}/bin/readlink -f $1 | ${gnused}/bin/sed 's|/flake.nix||') ${repl}
      fi
    ;;
  esac
''