zsh-history-search-with-peco.zsh

# Search shell history with peco: https://github.com/peco/peco
# Adapted from: https://github.com/mooz/percol#zsh-history-search
if which peco &> /dev/null; then
  function peco_select_history() {
    local tac=$( \
      (which gtac &> /dev/null && echo -n "gtac") || \
      (which tac &> /dev/null && echo -n "tac") || \
      echo -n "tail -r" \
    )
    BUFFER=$(fc -l -n 1 | eval $tac | \
                peco --layout=bottom-up --query "$LBUFFER")
    CURSOR=$#BUFFER # move cursor
    zle -R -c       # refresh
  }

  zle -N peco_select_history
  bindkey '^R' peco_select_history
fi