helm/zsh/prompt.zsh

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# Based off Pure <https://github.com/sindresorhus/pure>
# turns seconds into human readable time
# 165392 => 1d 21h 56m 32s
_human_time() {
echo -n " "
local tmp=$1
local days=$(( tmp / 60 / 60 / 24 ))
local hours=$(( tmp / 60 / 60 % 24 ))
local minutes=$(( tmp / 60 % 60 ))
local seconds=$(( tmp % 60 ))
(( $days > 0 )) && echo -n "${days}d "
(( $hours > 0 )) && echo -n "${hours}h "
(( $minutes > 0 )) && echo -n "${minutes}m "
echo "${seconds}s"
}
# string length ignoring ansi escapes
_string_length() {
# Subtract one since newline is counted as two characters
echo $(( ${#${(S%%)1//(\%([KF1]|)\{*\}|\%[Bbkf])}} - 1 ))
}
# fastest possible way to check if repo is dirty
prompt_git_dirty() {
# disable auth prompting on git 2.3+
GIT_TERMINAL_PROMPT=0
# check if we're in a git repo
[[ "$(command git rev-parse --is-inside-work-tree 2>/dev/null)" == "true" ]] || return
# check if it's dirty
command test -n "$(git status --porcelain --ignore-submodules -unormal)" || return
echo -n "%F{red}[+]"
local r=$(command git rev-list --right-only --count HEAD...@'{u}' 2>/dev/null)
local l=$(command git rev-list --left-only --count HEAD...@'{u}' 2>/dev/null)
(( ${r:-0} > 0 )) && echo -n " %F{green}${r}"
(( ${l:-0} > 0 )) && echo -n " %F{yellow}${l}"
echo -n '%f'
}
# displays the exec time of the last command if set threshold was exceeded
prompt_cmd_exec_time() {
local stop=$EPOCHSECONDS
local start=${cmd_timestamp:-$stop}
integer elapsed=$stop-$start
(($elapsed > 2)) && _human_time $elapsed
}
## Hooks ###############################
prompt_hook_preexec() {
cmd_timestamp=$EPOCHSECONDS
}
prompt_hook_precmd() {
# shows the full path in the title
print -Pn '\e]0;%~\a'
# git info
vcs_info
}
# Updates cursor shape and prompt symbol based on vim mode
prompt_hook_update_vim_mode() {
case $KEYMAP in
vicmd) print -n -- "\E]50;CursorShape=0\C-G";
PROMPT_SYMBOL=$N_MODE;
;; # block cursor
main|viins) print -n -- "\E]50;CursorShape=1\C-G";
PROMPT_SYMBOL=$I_MODE;
;; # line cursor
esac
zle reset-prompt
zle -R
}
prompt_hook_restore_cursor() {
print -n -- "\E]50;CursorShape=0\C-G" # block cursor
}
## Initialization ######################
prompt_init() {
# prevent percentage showing up
# if output doesn't end with a newline
export PROMPT_EOL_MARK=''
prompt_opts=(cr subst percent)
setopt PROMPTSUBST
zmodload zsh/datetime
autoload -Uz add-zsh-hook
autoload -Uz vcs_info
add-zsh-hook precmd prompt_hook_precmd
add-zsh-hook preexec prompt_hook_preexec
# Show $N-MODE if in normal mode and Change cursor depending on vim mode
hooks-add-hook zle_keymap_select_hook prompt_hook_update_vim_mode
hooks-add-hook zle_line_init_hook prompt_hook_update_vim_mode
hooks-add-hook zle_line_finish_hook prompt_hook_restore_cursor
zstyle ':vcs_info:*' enable git
zstyle ':vcs_info:*' use-simple true
zstyle ':vcs_info:*' max-exports 2
zstyle ':vcs_info:git*' formats ':%b'
zstyle ':vcs_info:git*' actionformats ':%b (%a)'
# show username@host if logged in through SSH
[[ "$SSH_CONNECTION" != '' ]] && prompt_username='%n@%m '
# show username@host if root, with username in white
[[ $UID -eq 0 ]] && prompt_username='%F{white}%n%F{242}@%m '
## Vim cursors
N_MODE="%F{blue}## "
I_MODE=">> "
RPROMPT='%F{blue}%~' # PWD
RPROMPT+='%F{242}${vcs_info_msg_0_}$(prompt_git_dirty)' # Branch + dirty indicator
RPROMPT+='%F{yellow}$(prompt_cmd_exec_time)' # Exec time
RPROMPT+='%f' # end
PROMPT='$prompt_username' # username
PROMPT+='%(?.%F{yellow}.%F{red})${PROMPT_SYMBOL}' # Prompt (red if $? == 0)
PROMPT+='%f' #end
}
prompt_init "$@"