cdb.sh

function cdb() {
    USAGE="Usage: cdb [-c|-d|-l] [bookmark]" ;
    DIR="$HOME/.config/cd_bookmarks"
    if  [ ! -e $DIR ] ; then
        mkdir $DIR
    fi

    case $1 in
        -c | --create) shift
            if [ ! -f $DIR/$1 ] ; then
                echo "cd `pwd`" > $DIR/"$1" ;
            else
                echo "Try again! Looks like there is already a bookmark '$1'"
            fi
            ;;

        -d | --delete) shift
            if [ -f $DIR/$1 ] ; then
                rm $DIR/"$1" ;
            else
                echo "Oops, forgot to specify the bookmark" ;
            fi
            ;;

        -l | --list) shift
            ls -1 $DIR ;
            ;;

        # goto bookmark
        *)
            if [ -f $DIR/$1 ] ; then
                source $DIR/"$1"
            else
                echo "Mmm...looks like your bookmark has spontaneously combusted." ;
            fi
            ;;
    esac
}

_cdb_completion () {
    local cur="${COMP_WORDS[COMP_CWORD]}"

    case "$cur" in
    -*)
        COMPREPLY=( $(compgen -W "--create --delete --list" -- ${cur}) )
        ;;
    *)
        COMPREPLY=( $(compgen -W "`cdb -l`" -- ${cur}) )
        ;;
    esac
}

complete -o default -F _cdb_completion cdb

# http://www.linuxjournal.com/content/more-using-bash-complete-command
# http://www.serverwatch.com/server-tutorials/a-look-at-the-compgen-bash-builtin.html
# https://sixohthree.com/867/bash-completion
# http://www.gnu.org/software/bash/manual/bashref.html#Programmable-Completion
# /usr/bin/virtualenvwrapper.sh:235
# /etc/bash_completion.d/git