Updated documentation for agnoster theme
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Isaac Wolkerstorfer
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# vim:ft=zsh ts=2 sw=2 sts=2
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#
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# agnoster's Theme
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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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# [Powerline-patched font](https://gist.github.com/1595572).
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#
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# In addition, I recommend the
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# [Solarized theme](https://github.com/altercation/solarized/) and, if you're
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# using it on Mac OS X, [iTerm 2](http://www.iterm2.com/) over Terminal.app -
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# it has significantly better color fidelity.
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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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### 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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CURRENT_BG=''
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CURRENT_BG='NONE'
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SEGMENT_SEPARATOR='⮀'
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function segment_start() {
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local bg=$1
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local fg=$2
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if [[ -n $CURRENT_BG && $bg != $CURRENT_BG ]]; then
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echo -n " %{%K{$bg}%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR"
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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 != $CURRENT_BG ]]; then
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echo -n " %{$bg%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR%{$fg%} "
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else
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echo -n "%{%K{$bg}%}"
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echo -n "%{$bg%}%{$fg%} "
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fi
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[[ -n $fg ]] && fg="%F{$fg}" || fg="%f"
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echo -n "%{$fg%} "
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CURRENT_BG=$bg
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CURRENT_BG=$1
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[[ -n $3 ]] && echo -n $3
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}
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function segment_stop() {
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# End the prompt, closing any open segments
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prompt_end() {
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if [[ -n $CURRENT_BG ]]; then
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echo -n " %{%k%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR"
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else
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@ -29,58 +58,58 @@ function segment_stop() {
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### Prompt components
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# Each component will draw itself, and hide itself if no information needs to be shown
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function prompt_context() {
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# Context: user@hostname (who am I and where am I)
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prompt_context() {
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local user=`whoami`
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if [[ ("$user" != "$DEFAULT_USER") || (-n "$SSH_CLIENT") ]]; then
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segment_start black
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#echo -n "%{%F{yellow}%}$user%{%F{gray}%}@%{%F{green}%}%m%{%f%}"
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echo -n "%(!.%{%F{yellow}%}.)$user@%m"
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if [[ "$user" != "$DEFAULT_USER" || -n "$SSH_CLIENT" ]]; then
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prompt_segment black default "%(!.%{%F{yellow}%}.)$user@%m"
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fi
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}
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function prompt_git() {
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# Git: branch/detached head, dirty status
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prompt_git() {
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local ref dirty
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if $(git rev-parse --is-inside-work-tree >/dev/null 2>&1); then
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ZSH_THEME_GIT_PROMPT_DIRTY='±'
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local dirty=$(parse_git_dirty)
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local ref
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dirty=$(parse_git_dirty)
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ref=$(git symbolic-ref HEAD 2> /dev/null) || ref="➦ $(git show-ref --head -s --abbrev |head -n1 2> /dev/null)"
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if [[ -n $dirty ]]; then
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segment_start yellow black
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prompt_segment yellow black
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else
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segment_start green black
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prompt_segment green black
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fi
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echo -n "${ref/refs\/heads\//⭠ }$dirty"
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fi
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}
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function prompt_dir() {
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segment_start blue white
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echo -n '%~'
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# Dir: current working directory
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prompt_dir() {
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prompt_segment blue black '%~'
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}
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function prompt_status() {
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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}%}✘"
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[[ $UID -eq 0 ]] && symbols+="%{%F{yellow}%}⚡"
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jobs=$(jobs -l | wc -l)
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[[ $jobs -gt 0 ]] && symbols+="%{%F{cyan}%}⚙"
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if [[ -n "$symbols" ]]; then
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segment_start black white
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echo -n "${symbols}"
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fi
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[[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}⚙"
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[[ -n "$symbols" ]] && prompt_segment black default "$symbols"
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}
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## Main prompt
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function build_prompt() {
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build_prompt() {
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RETVAL=$?
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prompt_status
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prompt_context
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prompt_dir
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prompt_git
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segment_stop
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prompt_end
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}
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PROMPT='%{%f%b%k%}
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$(build_prompt) '
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PROMPT='%{%f%b%k%}$(build_prompt) '
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