handy bash modifications for Hydra hackers

.bashrc

# Makes your prompt look like: http://i.imgur.com/Q647p.png
# I put this stuff in .bashrc, but you may prefer .bash_profile or .profile

# ...
RED="\[\033[0;31m\]"
GREEN="\[\033[0;32m\]"
ORANGE="\[\033[0;33m\]"
BLUE="\[\033[0;34m\]"
PURPLE="\[\033[0;35m\]"
CYAN="\[\033[0;36m\]"
WHITE="\[\033[0;37m\]"
BOLD_RED="\[\033[1;31m\]"
BOLD_GREEN="\[\033[1;32m\]"
BOLD_ORANGE="\[\033[1;33m\]"
BOLD_BLUE="\[\033[1;34m\]"
BOLD_PURPLE="\[\033[1;35m\]"
BOLD_CYAN="\[\033[1;36m\]"
BOLD_GREY="\[\033[1;37m\]"
DARK_GREY="\[\033[0;90m\]"
LIGHT_RED="\[\033[0;91m\]"
LIGHT_GREEN="\[\033[0;92m\]"
YELLOW="\[\033[0;93m\]"
LIGHT_BLUE="\[\033[0;94m\]"
LIGHT_PURPLE="\[\033[0;95m\]"
TURQUOISE="\[\033[0;96m\]"
BOLD_WHITE="\[\033[0;97m\]"
COLOR_NONE="\[\e[0m\]"

function __rvm_ruby_version {
  local gemset=$(echo $GEM_HOME | awk -F'@' '{print $2}')
  [ "$gemset" != "" ] && gemset="@$gemset"
  local version=$(echo $MY_RUBY_HOME | awk -F'-' '{print $2}')
  local full="$version$gemset"
  [ "$full" != "" ] && echo "${COLOR_NONE}[${WHITE}$full${COLOR_NONE}]"
}

function parse_git_branch {
  git rev-parse --git-dir &> /dev/null
  git_status="$(git status 2> /dev/null)"
  branch_pattern="^# On branch ([^${IFS}]*)"
  remote_pattern="# Your branch is (.*) of"
  diverge_pattern="# Your branch and (.*) have diverged"
  if [[ ! ${git_status} =~ "working directory clean" ]]; then
    state="${BOLD_RED}⚡"
  fi
  # add an else if or two here if you want to get more specific
  if [[ ${git_status} =~ ${remote_pattern} ]]; then
    if [[ ${BASH_REMATCH[1]} == "ahead" ]]; then
      remote="${YELLOW}↑"
    else
      remote="${YELLOW}↓"
    fi
  fi
  if [[ ${git_status} =~ ${diverge_pattern} ]]; then
    remote="${YELLOW}↕"
  fi
  if [[ ${git_status} =~ ${branch_pattern} ]]; then
    branch=${BASH_REMATCH[1]}
    echo " ${BOLD_WHITE}(${branch}$(__rvm_ruby_version)${remote}${state}${BOLD_WHITE})${COLOR_NONE}"
  fi
}

function prompt_func() {
    previous_return_value=$?;
    prompt="${LIGHT_GREEN}\u@\h:${BLUE}\w${COLOR_NONE}$(parse_git_branch)${COLOR_NONE}"
    if test $previous_return_value -eq 0
    then
        PS1="${prompt}\$${COLOR_NONE} "
    else
        PS1="${prompt}${RED}\$${COLOR_NONE} "
    fi
    # ...
}

PROMPT_COMMAND=prompt_func

if [ ! "$color_prompt" = yes ]; then
    PS1="${debian_chroot:+($debian_chroot)}\u@\h:\w:\$(parse_git_branch)\$ "
fi
unset color_prompt force_color_prompt

[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*

export PATH="$PATH:$HOME/.rvm/bin" # Add RVM to PATH for scripting

# ...