custom bash prompt for Titanium/Alloy development (and git) Shows the git branch in the current working directory, as well as the Titanium SDK and Alloy version if you are in a Titanium project. The git branch will also show a star (*) next to it if the branch has uncommitted changes. I'm using this with Mac OSX 10.9.1 Terminal and the Droid San…

.bash_profile

find-up() {
  local path=$(pwd)
  while [[ "$path" != "" && ! -e "$path/$1" ]]; do
    path=${path%/*}
  done
  if [ "$path" != "" ]
  	then
  	echo "$path"
  fi
}

parse_git_branch() {
	local branch=$(echo -n $(git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/\1/'))
    if [ ! -z "$branch" ]; then
		[[ $(git status 2> /dev/null | tail -n1) != *"working directory clean"* ]] && branch="$branch*"
		echo -en "--(\\033[2;37m$branch\\033[0;0m)"
	fi
}

parse_alloy_version() {
	local version=$(alloy --version 2> /dev/null | sed -e 's/\(.*\)/\1/')
	if [ ! -z "$version" ]; then
		echo -n "‡"
		echo -en "\\033[0;36m$version\\033[0;0m"
	fi
}

parse_titanium_version() {
	local tiapp=`find-up tiapp.xml`
	if [ -z "$tiapp" ]; then return; fi
	local tiversion=$(cat $tiapp/tiapp.xml 2> /dev/null | sed -n 's/<sdk-version>\(.*\)<\/sdk-version>/\1/p' | tr -d ' \t\n\r\f')
	if [ -z "$tiversion" ]; then return; fi
	echo -en "--(\\033[2;36m$tiversion\\033[0;0m"
	parse_alloy_version
	echo -n ")"
}

export PS1="\n(\033[0;32m\w\033[0;0m)\$(parse_git_branch)\$(parse_titanium_version)\n≫ "

I recommend changing:
$(cat $tiapp/tiapp.xml 2> /dev/null | sed -n 's/(.)</sdk-version>/\1/p' | tr -d ' \t\n\r\f')
to
$(cat "$tiapp/tiapp.xml" 2> /dev/null | sed -n 's/(.)</sdk-version>/\1/p' | tr -d ' \t\n\r\f')
This allows things to work when the project is in a sub-dir of a dir with a space in the name