Git related bash config

gistfile1.sh

# http://henrik.nyh.se/2008/12/git-dirty-prompt
# http://www.simplisticcomplexity.com/2008/03/13/show-your-git-branch-name-in-your-prompt/
#   username@Machine ~/dev/dir[master]$   # clean working directory
#   username@Machine ~/dev/dir[master*]$  # dirty working directory

# bash-completion
if [ -f /opt/local/etc/bash_completion ]; then
    . /opt/local/etc/bash_completion
fi
 
function parse_git_dirty {
  git diff --quiet HEAD &>/dev/null
  [[ $? == 1 ]] && echo "⚡"
}
function parse_git_branch {
  local branch=$(__git_ps1 "%s")
  [[ $branch ]] && echo "[$branch$(parse_git_dirty)]"
}
export PS1='\[\033[1;33m\]\w\[\033[0m\]$(parse_git_branch)$ '

alias g='git'
alias gs='git status'
alias gc='git commit'
alias gca='git commit -a'
alias ga='git add'
alias gco='git checkout '
alias gb='git branch'
alias gm='git merge'
alias gd="git diff"

complete -o default -o nospace -F _git_branch gb
complete -o default -o nospace -F _git_checkout gco