# History configurations
export HISTFILE=~/.zsh_history
export HISTSIZE=10000
export SAVEHIST=20000
setopt HIST_IGNORE_SPACE
setopt HIST_FIND_NO_DUPS
setopt hist_expire_dups_first # delete duplicates first when HISTFILE size exceeds HISTSIZE
setopt hist_ignore_dups       # ignore duplicated commands history list
setopt hist_ignore_space      # ignore commands that start with space
setopt hist_verify            # show command with history expansion to user before running it
setopt share_history          # share command history data

export HISTORY_IGNORE='(cd|c|q|exit|l[sal.]|[bf]g#( *)#|..|lsl|ll[a.]|cd ..)'

# configure `time` format
TIMEFMT=$'\nreal\t%E\nuser\t%U\nsys\t%S\ncpu\t%P'

zshaddhistory() {
  emulate -L zsh
  ## uncomment if HISTORY_IGNORE
  ## should use EXTENDED_GLOB syntax
  setopt extendedglob
  [[ ${1::-1} != ${~HISTORY_IGNORE} ]]
}