prompt_lambda_mod_setup

#
# Lambda Mod
# A simple theme inspired by lambda from oh-my-zsh and lambda_mod from prezto
#
# Authors:
#   AJ (0x414A) <aj@hckr.eml.cc>
#   Halfo
#   Nicolas A. Tonne <nixo@gmx.com>
#
# Lambda_Mod Authors:
#   Brian Tse <briankftse@gmail.com>
#   Sorin Ionescu <sorin.ionescu@gmail.com>
#
# Screenshots:
#   http://i.imgur.com/V7fzEUg.png
#

pmodload 'helper'

function prompt_lambda_mod_pwd {
    local pwd="${PWD/#$HOME/~}"

    if [[ "$pwd" == (#m)[/~] ]]; then
                _prompt_lambda_mod_pwd="$MATCH"
                unset MATCH
                else
                    _prompt_lambda_mod_pwd="${${${${(@j:/:M)${(@s:/:)pwd}##.#?}:h}%/}//\%/%%}/${${pwd:t}//\%/%%}"
            fi
}

function +vi-git_status {
  # Check for untracked files or updated submodules since vcs_info does not.
  if [[ -n $(git ls-files --other --exclude-standard 2> /dev/null) ]]; then
    hook_com[unstaged]='%F{red}'
  fi
}

function prompt_lambda_mod_precmd {
  vcs_info
  prompt_lambda_mod_pwd
}

function prompt_lambda_mod_setup {
  setopt LOCAL_OPTIONS
  unsetopt XTRACE KSH_ARRAYS
  prompt_opts=(cr percent subst)

  # Load required functions.
  autoload -Uz add-zsh-hook
  autoload -Uz vcs_info

  # Add hook for calling vcs_info before each command.
  add-zsh-hook precmd prompt_lambda_mod_precmd

  # Set vcs_info parameters.
  zstyle ':vcs_info:*' enable git
  zstyle ':vcs_info:*' check-for-changes true
  zstyle ':vcs_info:*' stagedstr '*'
  zstyle ':vcs_info:*' unstagedstr '%F{yellow}'
  zstyle ':vcs_info:*' formats ' at %F{blue} %u%b%c%f %F{cyan}→%f'
  zstyle ':vcs_info:*' actionformats " %b%c%u|%F{cyan}%a%f"
  zstyle ':vcs_info:(sv[nk]|bzr):*' branchformat '%b|%F{cyan}%r%f'
  zstyle ':vcs_info:git*+set-message:*' hooks git_status

  # Define prompts.
  PROMPT='%F{green}%(?::%F{red})λ%f %F{yellow}%n%f %F{black}[${_prompt_lambda_mod_pwd}]%f${vcs_info_msg_0_} '
  RPROMPT=''
  SPROMPT='zsh: correct %F{red}%R%f to %F{green}%r%f [nyae]? '
}

prompt_lambda_mod_setup "$@"