My .bash_profile, with some git goodness.

gistfile1.sh

export CLICOLOR=1

export LSCOLORS=GxFxCxDxBxegedabagaced

# Autocompletion for git.
# http://code-worrier.com/blog/autocomplete-git/
# Download doing curl https://raw.github.com/git/git/master/contrib/completion/git-completion.bash -o ~/.git-completion.bash
if [ -f ~/.git-completion.bash ]; then
  . ~/.git-completion.bash
fi

# Load in the git branch prompt script.
# http://code-worrier.com/blog/git-branch-in-bash-prompt/
# download it doing curl https://raw.github.com/git/git/master/contrib/completion/git-prompt.sh -o ~/.git-prompt.sh
source ~/.git-prompt.sh

# @gf3’s Sexy Bash Prompt, inspired by “Extravagant Zsh Prompt”
# Shamelessly copied from https://github.com/gf3/dotfiles
# Screenshot: http://i.imgur.com/s0Blh.png

if [[ $COLORTERM = gnome-* && $TERM = xterm ]] && infocmp gnome-256color >/dev/null 2>&1; then
  export TERM=gnome-256color
elif infocmp xterm-256color >/dev/null 2>&1; then
  export TERM=xterm-256color
fi

if tput setaf 1 &> /dev/null; then
  tput sgr0
  if [[ $(tput colors) -ge 256 ]] 2>/dev/null; then
    MAGENTA=$(tput setaf 9)
    ORANGE=$(tput setaf 172)
    GREEN=$(tput setaf 190)
    PURPLE=$(tput setaf 141)
    WHITE=$(tput setaf 7)
    BLUE=$(tput setaf 4)
  else
    MAGENTA=$(tput setaf 5)
    ORANGE=$(tput setaf 4)
    GREEN=$(tput setaf 2)
    PURPLE=$(tput setaf 1)
    WHITE=$(tput setaf 7)
    BLUE=$(tput setaf 4)
  fi
  BOLD=$(tput bold)
  RESET=$(tput sgr0)
else
  MAGENTA="\033[1;31m"
  ORANGE="\033[1;33m"
  GREEN="\033[1;32m"
  PURPLE="\033[1;35m"
  WHITE="\033[1;37m"
  BOLD=""
  RESET="\033[m"
fi

export MAGENTA
export ORANGE
export GREEN
export PURPLE
export BLUE
export WHITE
export BOLD
export RESET


export TERM="xterm-color"

function parse_git_dirty() {
        [[ $(git status 2> /dev/null | tail -n1) != *"working directory clean"* ]] && echo "*"
}

function parse_git_branch() {
        git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/\1$(parse_git_dirty)/"
}

export PS1="\[$BLUE\]\t \[$WHITE\]- \[${BOLD}${PURPLE}\]\u \[$WHITE\]at \[$GREEN\]\h \[$WHITE\]in \[$ORANGE\]\w\[$WHITE\]\$([[ -n \$(git branch 2> /dev/null) ]] && echo \" on \")\[$MAGENTA\]\$(parse_git_branch)\[$WHITE\]\n\$ \[$RESET\]"
export PS2="\[$ORANGE\]→ \[$RESET\]"