zsh: a proper powerline implementation, readable and extensible
This commit is contained in:
Von Random
parent
5d5127af49
commit
3e8ac63ace
2 changed files with 140 additions and 94 deletions
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@ -9,14 +9,9 @@ confdir=$(dirname $0)
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conflist=(
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settings.zsh
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functions.zsh
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prompt-powerline-native.zsh
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)
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if [[ -x $(whence powerline-go) ]]; then
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conflist+=(prompt-powerline-go.zsh)
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else
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conflist+=(prompt-plain.zsh)
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fi
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for config in $conflist; do
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[[ -r $confdir/$config ]] && . $confdir/$config
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done
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@ -1,67 +1,135 @@
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# Abandon all hope
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#
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# This is an implementation of powerline with git support.
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# The main feature is it being asynchronous: git status is updated in parallel.
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# Despite all the hours spent I have on this I am not going to use this atrocity.
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# But it's sorta funny to keep this around.
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#
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# I see now why common powerline prompts are usually not implemented in shell.
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prompt_fmtn='[ %%{\e[2;3m%%}%s%%{\e[0m%%} ] '
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printf -v PROMPT2 $prompt_fmtn '%_'
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printf -v PROMPT3 $prompt_fmtn '?#'
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printf -v PROMPT4 $prompt_fmtn '+%N:%i'
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prompt_state_file=/tmp/zsh_gitstatus_$$.tmp
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precmd.home() {
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[[ $PWD =~ ^$HOME ]] && printf '~'
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PROMPT=
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typeset -A prompt_symbols=(
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sep_a $'\ue0b0'
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sep_b $'\ue0b1'
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ellipsis $'\u2026'
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ro $'\u2717'
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ssh $'\u2191'
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git $'\ue0a0'
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git_unstaged '±'
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git_staged $'\u2713'
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git_untracked '!'
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git_unmerged '*'
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bang $'\n\U01f525'
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)
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typeset -A prompt_colors=(
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fg 253
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user 53
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ssh 90
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root 52
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host 240
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home 237
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/ 237
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dirs 234
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ro 124
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git_branch 237
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git_unstaged 130
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git_staged 25
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git_untracked 88
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git_unmerged 30
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)
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precmd.prompt.clear() {
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PROMPT=
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}
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precmd.cwd() {
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typeset shifted symbol=$' \ue0b1 ' cwd=${PWD#$HOME}
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[[ -z $cwd ]] && return
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typeset -a cwd_array=(${(ps:/:)cwd})
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cwd=
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while ((${#cwd_array} > 3)); do
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shift cwd_array
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typeset shifted=1
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done
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((shifted)) && cwd_array=(... $cwd_array)
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while ((${#cwd_array})); do
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cwd+="$cwd_array[1]$symbol"
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shift cwd_array
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done
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printf ${cwd%$symbol}
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}
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precmd.vars() {
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typeset user_color=blue
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((UID)) || user_color=red
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typeset -ga prompt_strings=(
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%n::$user_color
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%m::246
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"$(precmd.home)::242"
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"$(precmd.cwd)::245"
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)
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}
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precmd.prompt() {
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typeset prev_color symbol=$'\ue0b0' last=$'\n\U01f525 ' fg_color=black n=1 limit=${#prompt_strings}
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typeset ps1 line val color
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ps1=
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for ((i=1; i<=limit; i++)); do
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line=$prompt_strings[$i]
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val=${line%%::*}
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color=${line##*::}
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if [[ -n $val ]]; then
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[[ -z $prev_color ]] && prev_color=$color
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ps1+="%F{$prev_color}%K{$color}$symbol%F{$fg_color} $val "
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precmd.prompt.add() {
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typeset string
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typeset data=$1 color=$2
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if [[ $color == same ]]; then
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PROMPT+="$prompt_symbols[sep_b] $data "
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else
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if ((${#PROMPT})); then
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PROMPT+="%F{$prev_color}%K{$color}$prompt_symbols[sep_a]%F{$prompt_colors[fg]} $data "
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else
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PROMPT="%K{$color}%F{$prompt_colors[fg]} $data "
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fi
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prev_color=$color
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fi
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}
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precmd.prompt.bang() {
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PROMPT+="%F{$prev_color}%k$prompt_symbols[sep_a]%f$prompt_symbols[bang] "
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}
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precmd.prompt.user() {
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typeset user_color
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((UID)) && user_color=$prompt_colors[user] || user_color=$prompt_colors[root]
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precmd.prompt.add %n $user_color
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}
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precmd.prompt.ssh() {
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[[ -n $SSH_CONNECTION ]] && precmd.prompt.add $prompt_symbols[ssh] $prompt_colors[ssh]
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}
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precmd.prompt.host() {
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precmd.prompt.add %m $prompt_colors[host]
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}
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precmd.prompt.cwd() {
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typeset cwd limit=${1:-3}
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if [[ $PWD =~ ^$HOME ]]; then
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precmd.prompt.add \~ $prompt_colors[home]
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cwd=${PWD#$HOME}
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else
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precmd.prompt.add / $prompt_colors[/]
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cwd=${PWD:1}
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fi
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[[ -z $cwd ]] && return
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typeset -a cwd_array=(${(ps:/:)cwd})
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if ((${#cwd_array} > limit)); then
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precmd.prompt.add $prompt_symbols[ellipsis] $prompt_colors[dirs]
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while ((${#cwd_array} > limit)); do
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shift cwd_array
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done
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else
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precmd.prompt.add $cwd_array[1] $prompt_colors[dirs]
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shift cwd_array
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fi
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while ((${#cwd_array})); do
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precmd.prompt.add $cwd_array[1] same
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shift cwd_array
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done
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}
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precmd.prompt.ro() {
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[[ -w . ]] || precmd.prompt.add $prompt_symbols[ro] $prompt_colors[ro]
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}
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precmd.prompt.pre_git() {
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precmd.prompt.add "$prompt_symbols[git] $prompt_symbols[ellipsis]" $prompt_colors[git_branch]
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}
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precmd.prompt.git() {
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typeset raw_status
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raw_status=$(flock -n $prompt_state_file git --no-optional-locks status --porcelain -bu 2>/dev/null) || return 0
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typeset -A count
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typeset branch_status git_status_string IFS=
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while read line; do
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if [[ $line[1,2] == '##' ]]; then
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branch_status=${line[4,-1]%%...*}
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[[ $line =~ behind ]] && branch_status+=?
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[[ $line =~ ahead ]] && branch_status+=!
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precmd.prompt.add "$prompt_symbols[git] $branch_status" $prompt_colors[git_branch]
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fi
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[[ $line[1,2] == '??' ]] && (( count[git_untracked]++ ))
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[[ $line[1,2] =~ .[MD] ]] && (( count[git_unstaged]++ ))
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[[ $line[1,2] =~ [MDARC]. ]] && (( count[git_staged]++ ))
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[[ $line[1,2] =~ [ADU]{2} ]] && (( count[git_unmerged]++ ))
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done <<< $raw_status
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for i in git_unstaged git_staged git_untracked git_unmerged; do
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(( count[$i] )) && precmd.prompt.add "$count[$i]$prompt_symbols[$i]" $prompt_colors[$i]
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done
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ps1+="%F{$prev_color}%k$symbol%f$last"
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echo -n $ps1
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}
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precmd.is_git_repo() {
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@ -69,50 +137,33 @@ precmd.is_git_repo() {
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[[ ! -e $git_dir/nozsh ]]
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}
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precmd.git() {
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typeset raw_status
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raw_status=$(flock -n $prompt_state_file git --no-optional-locks status --porcelain -bu 2>/dev/null) || return 0
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typeset symbol=$'\ue0a0' branch_status git_status_string IFS=
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typeset staged_count unstaged_count untracked_count unmerged_coun
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while read line; do
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if [[ $line[1,2] == '##' ]]; then
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branch_status=${line[4,-1]%%...*}
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[[ $line =~ behind ]] && branch_status+=?
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[[ $line =~ ahead ]] && branch_status+=!
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prompt_strings+=("$symbol $branch_status::249")
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fi
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[[ $line[1,2] == '??' ]] && (( untracked_count++ ))
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[[ $line[1,2] =~ .[MD] ]] && (( unstaged_count++ ))
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[[ $line[1,2] =~ [MDARC]. ]] && (( staged_count++ ))
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[[ $line[1,2] =~ [ADU]{2} ]] && (( unmerged_count++ ))
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done <<< $raw_status
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if ! ((untracked_count || unstaged_count || staged_count || unmerged_count)); then
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prompt_strings+=(ok::10)
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fi
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(( unstaged_count )) && prompt_strings+=( "~$unstaged_count::11" )
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(( staged_count )) && prompt_strings+=( "+$staged_count::12" )
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(( untracked_count )) && prompt_strings+=( "-$untracked_count::9" )
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(( unmerged_count )) && prompt_strings+=( "*$unmerged_count::14" )
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precmd.prompt() {
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precmd.prompt.clear
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precmd.prompt.user
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precmd.prompt.ssh
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precmd.prompt.host
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precmd.prompt.cwd 2
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precmd.prompt.ro
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}
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precmd.git_update() {
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precmd.vars
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precmd.git
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precmd.prompt > $prompt_state_file
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umask 077
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precmd.prompt
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precmd.prompt.git
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precmd.prompt.bang
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> $prompt_state_file <<< $PROMPT
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kill -s USR1 $$
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}
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precmd() {
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if precmd.is_git_repo; then
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precmd.vars
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prompt_strings+=($'\ue0a0 ...'::249)
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PROMPT=$(precmd.prompt)
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precmd.prompt
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precmd.prompt.pre_git
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precmd.prompt.bang
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precmd.git_update &!
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else
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precmd.vars
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PROMPT=$(precmd.prompt)
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precmd.prompt
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precmd.prompt.bang
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fi
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}
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