My .zshrc file

.zshrc

# ALIASES

# ls
alias ls='ls --color=auto'
alias ll='ls --color=auto -lh'
alias lll='ls --color=auto -lh | less'

# grep
export GREP_COLOR=31
alias grep='grep --color=auto'

# ps
alias pl='ps aux | less'

# vi
alias vi='vim'

# ENVIRONMENT VARIABLES

# Path
export PATH=$PATH:~/.scripts:/var/lib/gems/1.8/bin

# Editor
export EDITOR=/usr/bin/vim

# ZSH CONFIGURATION

# Vi Editor from command line
autoload -U edit-command-line
zle -N edit-command-line
bindkey -M vicmd v edit-command-line

# History
HISTFILE=~/.histfile
HISTSIZE=1000
SAVEHIST=1000

# Key binding
bindkey -v 
bindkey '^R' history-incremental-search-backward

# Completion initialization
zstyle :compinstall filename '~/.zshrc'
autoload -Uz compinit
compinit

# Completion cache
zstyle ':completion:*' use-cache on
zstyle ':completion:*' cache-path ~/.zsh_cache

# Completion colours
zmodload zsh/complist
setopt extendedglob
zstyle ':completion:*:*:kill:*:processes' list-colors "=(#b) #([0-9]#)*=36=31"

# Local configuration
source ~/.zshrc_local

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

autoload colors
colors

setopt prompt_subst

autoload -Uz vcs_info
zstyle ':vcs_info:*' stagedstr '%F{green}• '
zstyle ':vcs_info:*' unstagedstr '%F{yellow}• '
zstyle ':vcs_info:*' check-for-changes true
zstyle ':vcs_info:*' enable git svn hg
zstyle ':vcs_info:hg*:*' check-for-changes true
zstyle ':vcs_info:hg*' actionformats "(%s|%a)[%i%u %b %m]"

precmd () {
    if [[ -z $(git ls-files --other --exclude-standard 2> /dev/null) ]] {
        zstyle ':vcs_info:*' formats '%c%u %F{cyan}%b'
    } else {
        zstyle ':vcs_info:*' formats '%F{red}• %c%u %F{cyan}%b'
    }
    vcs_info
}

function hg_prompt_info {
    hg prompt --angle-brackets "\
< at %{$fg[yellow]%}<tags|%{$reset_color%}, %{$fg[yellow]%}>%{$reset_color%}>\
%{$fg[green]%}<status|modified|unknown><update>%{$reset_color%}<
patches: <patches|join( → )|pre_applied(%{$fg[yellow]%})|post_applied(%{$reset_color%})|pre_unapplied(%{$fg_bold[black]%})|post_unapplied(%{$reset_color%})>>" 2>/dev/null
}

function prompt_precmd() {
    vcs_info
}
function prompt_set() {
  RPS1="$(hg_prompt_info) ${vcs_info_msg_0_} %{$fg[magenta]%}%*%{$reset_color%}"
}

autoload -U add-zsh-hook
add-zsh-hook precmd prompt_precmd
add-zsh-hook precmd prompt_set

export PS1="${vcs_info_msg_0_}%{$fg[green]%}%n@%m %{$fg[yellow]%}%~ %{$fg[red]%}%Bλ%b%{$fg[default]%} %{$reset_color%}"