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vdotfiles/zsh/prompt.zsh

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reset='%%{\e[0m%%}'
prompt_fmt='[ %s %s:%s %s]\n\U01f525 '
prompt_fmtn='[ %%{\e[2;3m%%}%s%%{\e[0m%%} ] '
prompt_user='%F{%(!.red.blue)}%n%f'
prompt_host='%m'
prompt_cwd='%F{green}%d%f'
prompt_git_fmt='\ue0a0 %s %s%%f '
prompt_state_file=/tmp/zsh_gitstatus_$$.tmp
printf -v PROMPT $prompt_fmt $prompt_user $prompt_host $prompt_cwd
printf -v PROMPT2 $prompt_fmtn '%_'
printf -v PROMPT3 $prompt_fmtn '?#'
printf -v PROMPT4 $prompt_fmtn '+%N:%i'
precmd.is_git_repo() {
read -r git_dir < <(git rev-parse --git-dir 2>/dev/null) || return 1
[[ ! -e $git_dir/nozsh ]]
}
precmd.git() {
typeset raw_status
raw_status=$(flock -n $prompt_state_file git --no-optional-locks status --porcelain -bu 2>/dev/null) || return 0
typeset branch_status git_status IFS=
typeset staged_count unstaged_count untracked_count unmerged_coun
while read line; do
if [[ $line[1,2] == '##' ]]; then
branch_status=${line[4,-1]%%...*}
[[ $line =~ behind ]] && branch_status+=?
[[ $line =~ ahead ]] && branch_status+=!
fi
[[ $line[1,2] == '??' ]] && (( untracked_count++ ))
[[ $line[1,2] =~ .[MD] ]] && (( unstaged_count++ ))
[[ $line[1,2] =~ [MDARC]. ]] && (( staged_count++ ))
[[ $line[1,2] =~ [ADU]{2} ]] && (( unmerged_count++ ))
done <<< $raw_status
(( unstaged_count )) && git_status+=%F{yellow}~$unstaged_count
(( staged_count )) && git_status+=%F{blue}+$staged_count
(( untracked_count )) && git_status+=%F{red}-$untracked_count
(( unmerged_count )) && git_status+=%F{cyan}*$unmerged_count
[[ -z $git_status ]] && git_status=%F{green}ok
printf $prompt_git_fmt $branch_status $git_status > $prompt_state_file
}
precmd.prompt() {
printf -v PROMPT $prompt_fmt $prompt_user $prompt_host $prompt_cwd $1
}
precmd.git_update() {
precmd.git
kill -s USR1 $$
}
precmd() {
if precmd.is_git_repo; then
precmd.prompt $'\ue0a0 ... '
precmd.git_update &!
else
precmd.prompt
fi
}
TRAPUSR1() {
precmd.prompt "$(<$prompt_state_file)"
zle && zle reset-prompt
}
TRAPEXIT() {
[[ -f $prompt_state_file ]] && rm $prompt_state_file
}
function zle-line-init zle-keymap-select {
local seq=$'\e[2 q'
[[ $KEYMAP == vicmd ]] && seq=$'\e[4 q'
printf $seq
}
zle -N zle-line-init
zle -N zle-keymap-select