#!/bin/sh

echo "Getting the contents files from sid for amd64 and all ..."
wget --quiet https://deb.debian.org/debian/dists/sid/main/Contents-amd64.gz
wget --quiet https://deb.debian.org/debian/dists/sid/main/Contents-all.gz

echo "Filtering out only manpages ..."
gzip -dc Contents-amd64.gz Contents-all.gz | grep "^usr/share/man/man*" > only-manpages.txt
rm -f Contents-amd64.gz Contents-all.gz

echo "Searching for conflicting manpages ..."
for manpage in man*/* ; do
	grep "usr/share/man/$manpage.gz" only-manpages.txt |
	grep -v "[^,]doc/manpages-dev$" |
	grep -v "[^,]doc/manpages$"
done > manpages-in-other-packages.txt
LC_ALL=C sort -o manpages-in-other-packages.txt manpages-in-other-packages.txt
rm -f only-manpages.txt

echo "Refreshing debian/rules ..."
for manpage in `cut -d" " -f1 manpages-in-other-packages.txt`; do
	section=`basename $manpage .gz | sed -e "s/.*\.//"`
	if [ $section -ge 2 -a $section -le 3 ]; then
		debian_path="debian/manpages-dev"
	else
		debian_path="debian/manpages"
	fi
	debian_path=$debian_path/`dirname $manpage`
	debian_path=$debian_path/`basename $manpage .gz`
	echo "\t"rm -f $debian_path
done > rules-snippet
rm -f manpages-in-other-packages.txt

lead="^\t# Start of automatically added files by debian\/check-conflicts$"
tail="^\t# End of automatically added files by debian\/check-conflicts$"
sed -i -e "/$lead/,/$tail/{ /$lead/{p; r rules-snippet
	}; /$tail/p; d }" debian/rules

rm -f rules-snippet