meta_comments

relpath(){ python -c "import os.path; print os.path.relpath('$1','${2:-$PWD}')" ; }
show_latest () {
    if [ -z "$1" ]
      then
            local dir=$PWD 
    else
            local dir="$1"
    fi
        ls --sort=time --reverse "$dir" | tail -1 ;
}

add_comment () {
    if [ -z "$1" ]
    then
            echo "Usage: add_comment [comment] [filename]"
    else
        cur_com=$( getfattr -d -m - "$2" | grep user.comment )
        if [ -z "$cur_com" ]
        then
            setfattr -n user.comment -v "$1" "$2" && printf "Added comment "$1" to file "$2"\n"
        else
            printf "There is already a comment found:\n$( getfattr -d -m - "$2" )\n"
            read -p "Overwrite? [y/n] " -n 1 -r
            echo    # (optional) move to a new line
                if [[ $REPLY =~ ^[Yy]$ ]]
                then
                    setfattr -n user.comment -v "$1" "$2" && printf "Added comment "$1" to file "$2"\n"
                fi
        fi
    fi
}

view_comment () {
    if [ -z "$1" ]
    then
        echo "You must provide a file"
    else
        getfattr -d -m - "$@"
    fi
}

remove_comment () {
    if [ -z "$1" ]
    then
        echo "You must provide a file"
    else
        setfattr -x user.comment "$1"
    fi
}

list_comments () {
    shopt -s dotglob
    if [ -z "$1" ]
    then
        local d=$PWD
    else
       [[ -d "$1" ]] || local d="$1" 
    fi 
    for f in $d/*
    do
        local col1=$( ls --color=always $( relpath $f $d )  )
        local col2=$( view_comment  $( relpath $f $d ) | tail -n +2 ) 
        echo "$col1"    "${col2#*=}" | column -c 2 -t
    done
    shopt -u dotglob #This is probably unnecessary as the subshell is separate
}