My bash prompt

.bash_prompt.sh

# This bash prompt is loosely based on https://gist.github.com/31967

red=$(tput setaf 1)
yellow=$(tput setaf 3)
green=$(tput setaf 2)
blue=$(tput setaf 6)
bold=$(tput bold)
reset=$(tput sgr0)

# Detects whether the current directory is a git repository
is_git_repository() {
  git branch > /dev/null 2>&1
}

# Public: Gets the name of the currently checkout out branch and colorizes it
colorized_git_branch () {
	# Get the name of the currectly checked out branch
	git_branch=$(git rev-parse --symbolic-full-name --abbrev-ref HEAD)

	# Capture the output of the "git status" command
  git_status="$(git status 2> /dev/null)"

	# Set color based on clean/staged/dirty.
  if [[ ${git_status} =~ "working directory clean" ]]; then
    branch_color="${green}"
  # elif [[ ${git_status} =~ "Changes to be committed" ]]; then
  #   branch_color="${blue}"
  else
    branch_color="${red}"
  fi

  echo "\[${bold}\]\[${branch_color}\]${git_branch}\[${reset}\]"
}

# Sets the bash prompt
set_bash_prompt() {
	if is_git_repository; then
		PS1="\W:$(colorized_git_branch) \$ "
	else
		PS1="\W \$ "
	fi
}

PROMPT_COMMAND=set_bash_prompt