Rewrite eriner theme using the Zim git-info module
Based on my rewrite of the Agnoster theme, uses simpler segment drawing functions and only relies on local variables. Uses git-info module in non-verbose mode, so a repo with only untracked files will not count as dirty (but dirty state is computed faster). Also took the freedom of adding an extra space character after the 'r' for the Ranger segment, and after the dirty indicator for the Git segment. Everything else looks and behaves exactly the same as the original prompt.
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Eric Nielsen
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1 changed files with 66 additions and 117 deletions
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# vim:ts=2 sw=2 sts=2 ft=zsh
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#
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# Eriner's Theme - fork of agnoster
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# A Powerline-inspired theme for ZSH
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#
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# # README
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#
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# In order for this theme to render correctly, you will need a
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# font with powerline symbols. A simple way to add the powerline
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# symbols is to follow the instructions here:
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# In order for this theme to render correctly, you will need a font with
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# powerline symbols. A simple way to add the powerline symbols is to follow the
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# instructions here:
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# https://simplyian.com/2014/03/28/using-powerline-symbols-with-your-current-font/
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#
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# # Goals
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#
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# The aim of this theme is to only show you *relevant* information. Like most
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# prompts, it will only show git information when in a git working directory.
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# However, it goes a step further: everything from the current user and
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# hostname to whether the last call exited with an error to whether background
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# jobs are running in this shell will all be displayed automatically when
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# appropriate.
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#
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# Uses the 'git-info' Zim module.
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### Segment drawing
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# A few utility functions to make it easy and re-usable to draw segmented prompts
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# Utility functions to make it easy and re-usable to draw segmented prompts.
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CURRENT_BG='NONE'
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PRIMARY_FG=black
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local prompt_eriner_bg
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# Characters
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function {
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local LC_ALL="" LC_CTYPE="en_US.UTF-8"
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SEGMENT_SEPARATOR="\ue0b0"
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PLUSMINUS="\u00b1"
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BRANCH="\ue0a0"
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DETACHED="\u27a6"
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CROSS="\u2718"
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LIGHTNING="\u26a1"
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GEAR="\u2699"
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# Begin a segment. Takes two arguments, background color and contents of the
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# new segment.
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prompt_eriner_segment() {
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print -n "%K{$1}"
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if [[ -n ${prompt_eriner_bg} ]]; then
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print -n "%F{${prompt_eriner_bg}}"
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fi
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print -n "$2"
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prompt_eriner_bg=$1
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}
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# Begin a segment
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# Takes two arguments, background and foreground. Both can be omitted,
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# rendering default background/foreground.
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prompt_segment() {
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local bg fg
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[[ -n ${1} ]] && bg="%K{${1}}" || bg="%k"
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[[ -n ${2} ]] && fg="%F{${2}}" || fg="%f"
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if [[ $CURRENT_BG != 'NONE' && ${1} != $CURRENT_BG ]]; then
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print -n "%{${bg}%F{${CURRENT_BG}}%}${SEGMENT_SEPARATOR}%{${fg}%}"
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else
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print -n "%{${bg}%}%{${fg}%}"
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fi
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CURRENT_BG=${1}
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[[ -n ${3} ]] && print -n ${3}
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}
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# End the prompt, closing any open segments
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prompt_end() {
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if [[ -n $CURRENT_BG ]]; then
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print -n "%{%k%F{${CURRENT_BG}}%}${SEGMENT_SEPARATOR}"
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else
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print -n "%{%k%}"
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fi
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print -n "%{%f%}"
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CURRENT_BG=''
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# End the prompt, closing last segment.
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prompt_eriner_end() {
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print -n "%k%F{${prompt_eriner_bg}}%f "
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}
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### Prompt components
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# Each component will draw itself, and hide itself if no information needs to be shown
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# Each component will draw itself, or hide itself if no information needs to be
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# shown.
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# Context: user@hostname (who am I and where am I)
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prompt_context() {
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if [[ ${USER} != ${DEFAULT_USER} || -n ${SSH_CONNECTION} ]]; then
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prompt_segment ${PRIMARY_FG} default " %(!.%{%F{yellow}%}.)${USER}@%m "
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# Status: Was there an error? Am I root? Are there background jobs? Ranger
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# spawned shell? Who and where am I (user@hostname)?
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prompt_eriner_status() {
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local segment=''
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(( ${RETVAL} )) && segment+=' %F{red}✘'
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(( ${UID} == 0 )) && segment+=' %F{yellow}⚡'
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(( $(jobs -l | wc -l) > 0 )) && segment+=' %F{cyan}⚙'
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(( ${RANGER_LEVEL} )) && segment+=' %F{cyan}r'
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if [[ ${USER} != ${DEFAULT_USER} || -n ${SSH_CLIENT} ]]; then
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segment+=' %F{%(!.yellow.default)}${USER}@%m'
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fi
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if [[ -n ${segment} ]]; then
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prompt_eriner_segment black "${segment} "
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fi
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}
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# Ranger: <https://github.com/ranger/ranger>, which can spawn ${SHELL}
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# under its own process
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prompt_ranger() {
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if [[ $((RANGER_LEVEL)) -ne 0 ]]; then
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local color=blue
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prompt_segment ${color} ${PRIMARY_FG}
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print -Pn " r"
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# Pwd: current working directory.
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prompt_eriner_pwd() {
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prompt_eriner_segment cyan " %F{black}$(short_pwd) "
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}
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# Git: branch/detached head, dirty status.
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prompt_eriner_git() {
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if [[ -n ${git_info} ]]; then
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local indicator
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[[ ${git_info[color]} == yellow ]] && indicator='± '
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prompt_eriner_segment ${git_info[color]} " %F{black}${(e)git_info[prompt]} ${indicator}"
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fi
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}
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# Git: branch/detached head, dirty status
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prompt_git() {
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local color ref
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is_dirty() {
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test -n "$(command git status --porcelain --ignore-submodules)"
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}
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ref=${vcs_info_msg_0_}
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if [[ -n ${ref} ]]; then
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if is_dirty; then
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color=yellow
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ref="${ref} ${PLUSMINUS}"
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else
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color=green
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ref="${ref} "
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fi
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if [[ "${ref/.../}" == ${ref} ]]; then
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ref="${BRANCH} ${ref}"
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else
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ref="$DETACHED ${ref/.../}"
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fi
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prompt_segment ${color} ${PRIMARY_FG}
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print -Pn " ${ref}"
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fi
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}
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# Dir: current working directory
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prompt_dir() {
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prompt_segment cyan ${PRIMARY_FG} " $(short_pwd) "
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}
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# Status:
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# - was there an error
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# - am I root
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# - are there background jobs?
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prompt_status() {
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local symbols
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symbols=()
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[[ ${RETVAL} -ne 0 ]] && symbols+="%{%F{red}%}${CROSS}"
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[[ ${UID} -eq 0 ]] && symbols+="%{%F{yellow}%}${LIGHTNING}"
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[[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}${GEAR}"
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[[ -n ${symbols} ]] && prompt_segment ${PRIMARY_FG} default " ${symbols} "
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}
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## Main prompt
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### Main prompt
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prompt_eriner_main() {
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RETVAL=$?
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CURRENT_BG='NONE'
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prompt_status
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prompt_context
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prompt_ranger
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prompt_dir
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prompt_git
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prompt_end
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prompt_eriner_status
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prompt_eriner_pwd
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prompt_eriner_git
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prompt_eriner_end
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}
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prompt_eriner_precmd() {
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vcs_info
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PROMPT='%{%f%b%k%}$(prompt_eriner_main) '
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[[ ${+functions[git-info]} ]] && git-info
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}
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prompt_eriner_setup() {
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autoload -Uz colors && colors
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autoload -Uz add-zsh-hook
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autoload -Uz vcs_info
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prompt_opts=(cr subst percent)
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prompt_opts=(cr percent subst)
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add-zsh-hook precmd prompt_eriner_precmd
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zstyle ':vcs_info:*' enable git
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zstyle ':vcs_info:*' check-for-changes false
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zstyle ':vcs_info:git*' formats '%b'
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zstyle ':vcs_info:git*' actionformats '%b (%a)'
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zstyle ':zim:git-info:branch' format ' %b'
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zstyle ':zim:git-info:commit' format '➦ %c'
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zstyle ':zim:git-info:action' format ' (%s)'
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zstyle ':zim:git-info:clean' format 'green'
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zstyle ':zim:git-info:dirty' format 'yellow'
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zstyle ':zim:git-info:keys' format \
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'prompt' '%b%c%s' \
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'color' '%C%D'
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PROMPT='${(e)$(prompt_eriner_main)}'
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RPROMPT=''
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}
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prompt_eriner_setup "$@"
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