zsh and oh-my-zsh setup script

.zshrc

# Path to your oh-my-zsh installation.
export ZSH=~/.oh-my-zsh

# Set name of the theme to load.
# Look in ~/.oh-my-zsh/themes/
# Optionally, if you set this to "random", it'll load a random theme each
# time that oh-my-zsh is loaded.
ZSH_THEME="gitster"

# Uncomment the following line to use case-sensitive completion.
# CASE_SENSITIVE="true"

# Uncomment the following line to use hyphen-insensitive completion. Case
# sensitive completion must be off. _ and - will be interchangeable.
# HYPHEN_INSENSITIVE="true"

# Uncomment the following line to disable bi-weekly auto-update checks.
# DISABLE_AUTO_UPDATE="true"

# Uncomment the following line to change how often to auto-update (in days).
# export UPDATE_ZSH_DAYS=13

# Uncomment the following line to disable colors in ls.
# DISABLE_LS_COLORS="true"

# Uncomment the following line to disable auto-setting terminal title.
# DISABLE_AUTO_TITLE="true"

# Uncomment the following line to enable command auto-correction.
# ENABLE_CORRECTION="true"

# Uncomment the following line to display red dots whilst waiting for completion.
# COMPLETION_WAITING_DOTS="true"

# Uncomment the following line if you want to disable marking untracked files
# under VCS as dirty. This makes repository status check for large repositories
# much, much faster.
# DISABLE_UNTRACKED_FILES_DIRTY="true"

# Uncomment the following line if you want to change the command execution time
# stamp shown in the history command output.
# The optional three formats: "mm/dd/yyyy"|"dd.mm.yyyy"|"yyyy-mm-dd"
# HIST_STAMPS="mm/dd/yyyy"

# Would you like to use another custom folder than $ZSH/custom?
ZSH_CUSTOM=.zsh_custom

# Which plugins would you like to load? (plugins can be found in ~/.oh-my-zsh/plugins/*)
# Custom plugins may be added to ~/.oh-my-zsh/custom/plugins/
# Example format: plugins=(rails git textmate ruby lighthouse)
# Add wisely, as too many plugins slow down shell startup.
plugins=(git colored-man colorize github jira vagrant virtualenv virtualenv-prompt pip python brew osx sublime zsh-syntax-highlighting)

# User configuration

export PATH="/usr/local/bin:/usr/local/sbin:/usr/local/avr/bin:/usr/local/heroku/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/local/go/bin:/usr/texbin"
# export MANPATH="/usr/local/man:$MANPATH"
source /usr/local/opt/autoenv/activate.sh
source $ZSH/oh-my-zsh.sh

# You may need to manually set your language environment
# export LANG=en_US.UTF-8

# Preferred editor for local and remote sessions
# if [[ -n $SSH_CONNECTION ]]; then
#   export EDITOR='vim'
# else
#   export EDITOR='mvim'
# fi

# Compilation flags
# export ARCHFLAGS="-arch x86_64"

# ssh
# export SSH_KEY_PATH="~/.ssh/dsa_id"

# Set personal aliases, overriding those provided by oh-my-zsh libs,
# plugins, and themes. Aliases can be placed here, though oh-my-zsh
# users are encouraged to define aliases within the ZSH_CUSTOM folder.
# For a full list of active aliases, run `alias`.
#
# Example aliases
# alias zshconfig="mate ~/.zshrc"
# alias ohmyzsh="mate ~/.oh-my-zsh"

eval "$(direnv hook zsh)"

gitster.zsh-theme

local ret_status="%(?:%{$fg_bold[green]%}➜ :%{$fg_bold[red]%}➜ %s)"

#function git_prompt_info() {
#  ref=$(git symbolic-ref HEAD 2> /dev/null) || return
#  echo "$ZSH_THEME_GIT_PROMPT_PREFIX$(current_branch)$ZSH_THEME_GIT_PROMPT_SUFFIX$(parse_git_dirty)"
#}

function _virtualenv_prompt_info {
    [[ -n $(whence virtualenv_prompt_info) ]] && virtualenv_prompt_info
}

function get_pwd(){
  git_root=$PWD
  while [[ $git_root != / && ! -e $git_root/.git ]]; do
    git_root=$git_root:h
  done
  if [[ $git_root = / ]]; then
    unset git_root
    prompt_short_dir=%~
  else
    parent=${git_root%\/*}
    prompt_short_dir=${PWD#$parent/}
  fi
  echo $prompt_short_dir
}

PROMPT='$ret_status %{$fg[white]%}$(_virtualenv_prompt_info)$(get_pwd) $(git_prompt_info)%{$reset_color%}%{$reset_color%} '

ZSH_THEME_GIT_PROMPT_PREFIX="%{$fg[cyan]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_DIRTY=" %{$fg[yellow]%}✗%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_CLEAN=" %{$fg[green]%}✓%{$reset_color%}"

#ZSH_THEME_GIT_PROMPT_PREFIX="%{$reset_color%}[git:"
#ZSH_THEME_GIT_PROMPT_SUFFIX="]%{$reset_color%}"
#ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[red]%}+%{$reset_color%}"
#ZSH_THEME_GIT_PROMPT_CLEAN="%{$fg[green]%}"

oh-my-zsh.sh

$ brew install zsh zsh-completions
$ sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"
$ chsh -s /bin/zsh
$ curl -L https://raw.github.com/tonyseek/oh-my-zsh-virtualenv-prompt/master/install.sh | sh