#!/bin/bash
# Generate mirror lists

mirrorpath=~plf/ftp/mandriva
generatelist=~plf/bin/generatelist.pl
mirrorsxml=~plf/www/mirrors.xml
transform=~plf/www/mirrors/list.xsl
geoipcitylookup=~plf/geoip-city-lookup
move_to=~plf/www/mirrors
stabledistros="2011 2010.2 2010.1 2010.0 2009.1 2009.0 2008.1"
# Files older than $mirror_age days must be on all mirrors
mirror_age=7
# Set to 1 to put mirrorlists into SVN
use_svn=

workdir="$(mktemp -t -d mirrorlists.XXXXX)"
[ -n "$workdir" ] || exit 1
cd $workdir

xsltproc -o mirrors.list $transform $mirrorsxml
ln -s $geoipcitylookup geoip

last_rpm() {
	local version=$1
	local path=$2
	local lastfile=

	for arch in i586 x86_64 ppc; do
		lastfile=$(find $path/$arch -maxdepth 1 -mtime +${mirror_age} -type f -printf "%T@ %f\n" | sort -rn | head -n1 | cut -f2 -d" ")
		[ -n "$lastfile" ] || lastfile="media_info/synthesis.hdlist.cz"
		echo $lastfile > $version.$arch.distrib.lastrpm
	done
}

last_rpm cooker $mirrorpath/cooker/free/binary
for version in $stabledistros; do
	last_rpm $version $mirrorpath/$version/free/backports/binary
done

$generatelist mirrors.list &> $TMPDIR/generatelist.log

# FIXME: generatelist.pl seems to return before its children
sleep 60
mv fail.cooker.i586.list failed.list
rm fail.*.list mirrors.list

if [ -n "$use_svn" ]; then
	svn co -q --non-interactive file:///home/projects/plf/svn/public/www/mirrors mirrors
	sleep 1 # for timestamps, for SVN
	changed_type=
	for file in *.list; do
		if [ -L $file ]; then
			if [ ! -L mirrors/$file ]; then
				changed_type="$changed_type mirrors/$file"
				svn del -q mirrors/$file &>/dev/null
			fi
			mv -f $file mirrors/$file
		else
			if [ -L mirrors/$file ]; then
				changed_type="$changed_type mirrors/$file"
				svn del -q mirrors/$file &>/dev/null
			fi
			# we want a deterministic order for version control
			sort $file > mirrors/$file
		fi
	done

	# SVN does not seem to handle type change without committing removal first
	if [ -n "$changed_type" ]; then
		for file in $changed_type; do
			mv $file $file.bck
		done
		svn commit -q --non-interactive -m "update mirror lists, removing files with changed type" mirrors
		rename .bck "" mirrors/*.bck
	fi

	svn add -q mirrors/*.list &>/dev/null
	svn commit -q --non-interactive -m "update mirror lists" mirrors
else
	rm -f $move_to/*.list
	mv *.list $move_to/
fi
rm -rf "$workdir"