--- /dev/null
+#! /bin/sh
+
+# Prepare and/or update cowbuilder caches
+
+COWBUILDERBASE=/var/lib/jenkins/builder/
+
+for DIST in squeeze wheezy ; do
+ COWBUILDERCONFIG=$COWBUILDERBASE/config/$DIST.config
+
+ cat > $COWBUILDERCONFIG <<EOF
+PDEBUILD_PBUILDER=cowbuilder
+BASEPATH=$COWBUILDERBASE/cow/base-$DIST-amd64.cow
+BUILDPLACE=$COWBUILDERBASE/buildplace
+APTCACHEHARDLINK="no"
+APTCACHE="/var/cache/pbuilder/aptcache"
+PBUILDERROOTCMD="sudo HOME=${HOME}"
+BUILDRESULT=$BUILDRESULT
+EOF
+
+ if [ -d $COWBUILDERBASE/cow/base-$DIST-amd64.cow ] ; then
+ sudo cowbuilder --update --configfile $COWBUILDERCONFIG
+ else
+ sudo cowbuilder --create --distribution $DIST --configfile $COWBUILDERCONFIG --mirror http://ftp.fr.debian.org/
+ fi
+done