.zshrc

# DESCRIPTION:
#   A simple zsh configuration that gives you 90% of the useful features that I use everyday.
#
# AUTHOR:
#   Geoffrey Grosenbach http://peepcode.com

############
# FUNCTIONS
############

# RVM or rbenv
function ruby_prompt(){
  rv=$(rbenv version-name)
  if (echo $rv &> /dev/null)
  then
    echo "%{$fg_bold[gray]%}ruby $rv%{$reset_color%}"
  elif $(which rvm &> /dev/null)
  then
    echo "%{$fg_bold[gray]%}$(rvm tools identifier)%{$reset_color%}"
  else
    echo ""
  fi
}

# Determine the time since last commit. If branch is clean,
# use a neutral color, otherwise colors will vary according to time.
function git_time_since_commit() {
  if git rev-parse --git-dir > /dev/null 2>&1; then
    # Only proceed if there is actually a commit.
    if [[ $(git log 2>&1 > /dev/null | grep -c "^fatal: bad default revision") == 0 ]]; then
      # Get the last commit.
      last_commit=`git log --pretty=format:'%at' -1 2> /dev/null`
      now=`date +%s`
      seconds_since_last_commit=$((now-last_commit))

      # Totals
      MINUTES=$((seconds_since_last_commit / 60))
      HOURS=$((seconds_since_last_commit/3600))

      # Sub-hours and sub-minutes
      DAYS=$((seconds_since_last_commit / 86400))
      SUB_HOURS=$((HOURS % 24))
      SUB_MINUTES=$((MINUTES % 60))

      if [[ -n $(git status -s 2> /dev/null) ]]; then
        if [ "$MINUTES" -gt 30 ]; then
          COLOR="$ZSH_THEME_GIT_TIME_SINCE_COMMIT_LONG"
        elif [ "$MINUTES" -gt 10 ]; then
          COLOR="$ZSH_THEME_GIT_TIME_SHORT_COMMIT_MEDIUM"
        else
          COLOR="$ZSH_THEME_GIT_TIME_SINCE_COMMIT_SHORT"
        fi
      else
        COLOR="$ZSH_THEME_GIT_TIME_SINCE_COMMIT_NEUTRAL"
      fi

      if [ "$HOURS" -gt 24 ]; then
        echo "($COLOR${DAYS}d${SUB_HOURS}h${SUB_MINUTES}m%{$reset_color%}|"
      elif [ "$MINUTES" -gt 60 ]; then
        echo "($COLOR${HOURS}h${SUB_MINUTES}m%{$reset_color%}|"
      else
        echo "($COLOR${MINUTES}m%{$reset_color%}|"
      fi
    else
      COLOR="$ZSH_THEME_GIT_TIME_SINCE_COMMIT_NEUTRAL"
      echo "($COLOR~|"
    fi
  fi
}

function prompt_char {
  git branch >/dev/null 2>/dev/null && echo '[±])' && return
  hg root >/dev/null 2>/dev/null && echo '[☿])' && return
  echo '[○]'
}

# Current path color depending on last command exit status
local current_path="%(?,%{$fg[gray]%}%~%{$reset_color%},%{$fg[red]%}%~%{$reset_color%})"

# mkdir & cd to it
function mcd() {
  mkdir -p "$1" && cd "$1";
}

#########
# COLORS
#########

autoload -U colors
colors
setopt prompt_subst

ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg[white]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%})"

# Text to display if the branch is dirty
ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[red]%} *%{$reset_color%}"

# Text to display if the branch is clean
ZSH_THEME_GIT_PROMPT_CLEAN=""

# Colors vary depending on time lapsed.
ZSH_THEME_GIT_TIME_SINCE_COMMIT_SHORT="%{$fg[green]%}"
ZSH_THEME_GIT_TIME_SHORT_COMMIT_MEDIUM="%{$fg[yellow]%}"
ZSH_THEME_GIT_TIME_SINCE_COMMIT_LONG="%{$fg[red]%}"
ZSH_THEME_GIT_TIME_SINCE_COMMIT_NEUTRAL="%{$fg[cyan]%}"

#########
# PROMPT
#########

PROMPT='
${current_path}
%{$fg[white]%}$(git_time_since_commit)%{$fg[white]%}$(prompt_char) > %{$reset_color%}'

RPROMPT='%{$fg[white]%} $(ruby_prompt)$(~/bin/git-cwd-info.rb)%{$reset_color%}'

#############
# COMPLETION
#############

# Show completion on first TAB
setopt menucomplete

# load autocompletion
autoload -U compinit && compinit

# enable cache
zstyle ':completion:*' use-cache on
zstyle ':completion:*' cache-path ~/.zsh/cache

# ignore completion to commands we don't have
zstyle ':completion:*:functions' ignored-patterns '_*'

# format autocompletion style
zstyle ':completion:*:descriptions' format "%{$fg_bold[green]%}%d%{$reset_color%}"
zstyle ':completion:*:corrections' format "%{$fg_bold[yellow]%}%d%{$reset_color%}"
zstyle ':completion:*:messages' format "%{$fg_bold[red]%}%d%{$reset_color%}"
zstyle ':completion:*:warnings' format "%{$fg_bold[red]%}%d%{$reset_color%}"

# zstyle show completion menu if 2 or more items to select
zstyle ':completion:*'                        menu select=2

# zstyle kill menu
zstyle ':completion:*:*:kill:*'               menu yes select
zstyle ':completion:*:kill:*'                 force-list always
zstyle ':completion:*:*:kill:*:processes'     list-colors "=(#b) #([0-9]#)*=36=31"

# enable color completion
zstyle ':completion:*:default' list-colors "=(#b) #([0-9]#)*=$color[yellow]=$color[red]"

# fuzzy matching of completions for when we mistype them
zstyle ':completion:*' completer _complete _match _approximate
zstyle ':completion:*:match:*' original only

# number of errors allowed by _approximate increase with the length of what we have typed so far
zstyle -e ':completion:*:approximate:*' max-errors 'reply=($((($#PREFIX+$#SUFFIX)/3))numeric)'

##########
# ALIASES
##########

alias ls='ls -G'
alias ll='ls -lG'
alias duh='du -csh'

git-cwd-info.rb

#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

# Emits Git metadata for use in a Zsh prompt.
#
# AUTHOR:
#    Ben Hoskings
#   https://github.com/benhoskings/dot-files/blob/master/files/bin/git_cwd_info
#
# MODIFIED:
#    Geoffrey Grosenbach http://peepcode.com

# The methods that get called more than once are memoized.

def git_repo_path
  @git_repo_path ||= `git rev-parse --git-dir 2>/dev/null`.strip
end

def in_git_repo
  !git_repo_path.empty? &&
  git_repo_path != '~' &&
  git_repo_path != "#{ENV['HOME']}/.git"
end

def git_parse_branch
  @git_parse_branch ||= `git-current-branch`.chomp
end

def git_head_commit_id
  `git rev-parse --short HEAD 2>/dev/null`.strip
end

def git_cwd_dirty
  " %{\e[90m%}✗%{\e[0m%}" unless git_repo_path == '.' || `git ls-files -m`.strip.empty?
end

def rebasing_etc
  if File.exists?(File.join(git_repo_path, 'BISECT_LOG'))
    "+bisect"
  elsif File.exists?(File.join(git_repo_path, 'MERGE_HEAD'))
    "+merge"
  elsif %w[rebase rebase-apply rebase-merge ../.dotest].any? {|d| File.exists?(File.join(git_repo_path, d)) }
    "+rebase"
  end
end

if in_git_repo
  print " %{\e[90m%}#{git_parse_branch} %{\e[37m%}#{git_head_commit_id}%{\e[0m%}#{rebasing_etc}#{git_cwd_dirty}"
end