oh-my-zsh/themes/agnoster.zsh-theme

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# vim:ft=zsh ts=2 sw=2 sts=2
#
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# agnoster's Theme - https://gist.github.com/3712874
# A Powerline-inspired theme for ZSH
#
# # README
#
# In order for this theme to render correctly, you will need a
# [Powerline-patched font](https://gist.github.com/1595572).
#
# In addition, I recommend the
# [Solarized theme](https://github.com/altercation/solarized/) and, if you're
# using it on Mac OS X, [iTerm 2](http://www.iterm2.com/) over Terminal.app -
# it has significantly better color fidelity.
#
# # Goals
#
# The aim of this theme is to only show you *relevant* information. Like most
# prompts, it will only show git information when in a git working directory.
# However, it goes a step further: everything from the current user and
# hostname to whether the last call exited with an error to whether background
# jobs are running in this shell will all be displayed automatically when
# appropriate.
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### Segment drawing
# A few utility functions to make it easy and re-usable to draw segmented prompts
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CURRENT_BG='NONE'
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SEGMENT_SEPARATOR='⮀'
# Begin a segment
# Takes two arguments, background and foreground. Both can be omitted,
# rendering default background/foreground.
prompt_segment() {
local bg fg
[[ -n $1 ]] && bg="%K{$1}" || bg="%k"
[[ -n $2 ]] && fg="%F{$2}" || fg="%f"
if [[ $CURRENT_BG != 'NONE' && $1 != $CURRENT_BG ]]; then
echo -n " %{$bg%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR%{$fg%} "
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else
echo -n "%{$bg%}%{$fg%} "
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fi
CURRENT_BG=$1
[[ -n $3 ]] && echo -n $3
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}
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# End the prompt, closing any open segments
prompt_end() {
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if [[ -n $CURRENT_BG ]]; then
echo -n " %{%k%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR"
else
echo -n "%{%k%}"
fi
echo -n "%{%f%}"
CURRENT_BG=''
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}
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### Prompt components
# Each component will draw itself, and hide itself if no information needs to be shown
# Context: user@hostname (who am I and where am I)
prompt_context() {
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local user=`whoami`
if [[ "$user" != "$DEFAULT_USER" || -n "$SSH_CLIENT" ]]; then
prompt_segment black default "%(!.%{%F{yellow}%}.)$user@%m"
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fi
}
# Git: branch/detached head, dirty status
prompt_git() {
local ref dirty
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if $(git rev-parse --is-inside-work-tree >/dev/null 2>&1); then
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ZSH_THEME_GIT_PROMPT_DIRTY='±'
dirty=$(parse_git_dirty)
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 $dirty ]]; then
prompt_segment yellow black
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else
prompt_segment green black
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fi
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echo -n "${ref/refs\/heads\//⭠ }$dirty"
fi
}
# Dir: current working directory
prompt_dir() {
prompt_segment blue black '%~'
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}
# Status:
# - was there an error
# - am I root
# - are there background jobs?
prompt_status() {
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local symbols
symbols=()
[[ $RETVAL -ne 0 ]] && symbols+="%{%F{red}%}✘"
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[[ $UID -eq 0 ]] && symbols+="%{%F{yellow}%}⚡"
[[ $(jobs -l | wc -l) -gt 0 ]] && symbols+="%{%F{cyan}%}⚙"
[[ -n "$symbols" ]] && prompt_segment black default "$symbols"
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}
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## Main prompt
build_prompt() {
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RETVAL=$?
prompt_status
prompt_context
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prompt_dir
prompt_git
prompt_end
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}
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PROMPT='%{%f%b%k%}$(build_prompt) '