Git completion

.zshrc

# -*- mode: sh -*-

autoload -Uz compinit
compinit

source_if_exists() {
    [ -f $1 ] && source $1
}

# These are installed by homebrew
source_if_exists /usr/local/etc/bash_completion.d/git-prompt.bash
source_if_exists /usr/local/etc/bash_completion.d/git-completion.bash

precmd() {
    export PS1="%n@%m %~ $(__git_ps1 '%s') %# "
}