#!/bin/zsh
# backclip - simple X11 clipboard manager
#
# run backclip -d to collect $N last selections in a ring buffer,
# run backclip to put them into selection buffer again using dmenu.

DIR=/tmp/.backclip-$UID
N=32

if [[ "$1" = -d ]]; then
    mkdir -p -m 700 $DIR
    i=0
    xprop -spy -root CUT_BUFFER0 | while read; do
        oi=$i
        xclip -o >$DIR/.$oi
        # check for duplicate selection
        if ! cmp -s $DIR/.$oi $DIR/$oi; then
            (( i = (i+1) % N ))
            mv $DIR/.$oi $DIR/$i
        fi
    done
else
    xsel -i <$DIR/$(for f in $DIR/*(om); do
        echo -n $f:t ' '
        tr '[:space:]' ' ' <$f |head -1 |head -c 300
        echo
        done | dmenu ${=BACKCLIPOPT} -l $N | cut -d' ' -f1)
fi