ohmyzsh/plugins/hitchhiker/hitchhiker.plugin.zsh

HITCHHIKER_DIR="${0:h}/fortunes"

# Aliases
alias hitchhiker="fortune -a $HITCHHIKER_DIR"
alias hitchhiker_cow="hitchhiker | cowthink"

() {
  # Don't generate hitchhiker.dat if it exists and is up-to-date
  if [[ -f "$HITCHHIKER_DIR/hitchhiker.dat" ]] && ! [[ "$HITCHHIKER_DIR/hitchhiker.dat" -ot "$HITCHHIKER_DIR/hitchhiker" ]]; then
    return
  fi

  # If strfile is not found: some systems install strfile in /usr/sbin but it's not in $PATH
  if ! command -v strfile &>/dev/null && ! [[ -f /usr/sbin/strfile ]]; then
    echo "[oh-my-zsh] hitchhiker depends on strfile, which is not installed" >&2
    echo "[oh-my-zsh] strfile is often provided as part of the 'fortune' package" >&2
    return
  fi

  "${commands[strfile]:-/usr/sbin/strfile}" "$HITCHHIKER_DIR/hitchhiker" "$HITCHHIKER_DIR/hitchhiker.dat" >/dev/null
}

unset HITCHHIKER_DIR