.bash_profile

# function to test for parent directories
__has_parent_dir () {
    test -d "$1" && return 0;

    current="."
    while [ ! "$current" -ef "$current/.." ]; do
        if [ -d "$current/$1" ]; then
            return 0;
        fi
        current="$current/..";
    done

    return 1;
}

# print the git info for a directory
__git_branch() {
    if __has_parent_dir ".git"; then
        echo "-[$(git rev-parse --abbrev-ref HEAD)]";
    fi
}

# print the directory name
# some custom logic to shorten certain paths for readability
__directory_name() {
    directory="$(pwd)"
    echo "$directory";
}

# print the host name or whatever you'd like to see there
# in my case i'm using a short abbreviation as my hostname is long and ugly
__hostname() {
    echo "pegasus";
}

# COLOR SCHEME
black=$(tput -Txterm setaf 0)
red=$(tput -Txterm setaf 1)
green=$(tput -Txterm setaf 2)
yellow=$(tput -Txterm setaf 3)
dk_blue=$(tput -Txterm setaf 4)
pink=$(tput -Txterm setaf 5)
lt_blue=$(tput -Txterm setaf 6)

bold=$(tput -Txterm bold)
reset=$(tput -Txterm sgr0)

# Nicely formatted terminal prompt
export PS1='\n\[$bold\]\[$black\][\[$dk_blue\]\@\[$black\]]-[\[$green\]\u\[$yellow\]@\[$green\]$(__hostname) \[$black\]]-[\[$pink\]$(__directory_name) \[$black\]]\[\033[0;33m\]$(__git_branch) \[\033[00m\]\[$reset\]\n\[$reset\]\$ '

# grep colors
export GREP_OPTIONS='--color=auto'
export GREP_COLOR='1;35;40'