#! /bin/sh
# wwwoffle-cache-regexp-rm -- remove URLs via regular expressions
# from the WWWOFFLE cache
# Copyright       : http://www.fsf.org/copyleft/gpl.html
# Author          : Dan Jacobson -- http://jidanni.org/comp/wwwoffle/
# Created On      : July 2001
# Last Modified On: Sat Feb  6 02:46:18 2010
# Update Count    : 29

test $# -ne 2 && {
    1>&2 cat <<EOF
usage example: $0   http/www.bla.com     nar.*dly
will find http://www.bla.com/rrrr/ppppnareeedlyzzz/qqq
and ask you if you want to delete it from the cache.
Must be root to use, also.
EOF
    exit 44;}
echo $1|grep -i '^[a-z]\+$' > /dev/null && {
    1>&2 echo $0: can\'t use on e.g. monitor, lasttime, etc. directories.
    exit 55;}
set -e
filelist=`wwwoffle-ls "$1"|awk '
{a=$6; sub("'$1'","",a); if (a ~ "'$2'") {print $6 | "sort";flag=1}}
	    END{if (!flag){print "'$0': no matches" > "/dev/stderr" ;exit 1}}'`
echo "$filelist"|${PAGER-cat} #should put in awk so can check $?...
echo -n 'Delete these? [N]|y  '
read answer
test "x$answer" = xy &&
   echo $filelist|xargs -n 1 wwwoffle-rm
   #could also: && if that directory is empty, ask about removing it too...