Added preinst script to cleanup flavour symlinks which aren't shipped anymore, remove...

[matthijs/upstream/blosxom.git] / debian / preinst

diff --git a/debian/preinst b/debian/preinst
new file mode 100644 (file)
index 0000000..9052dd1
--- /dev/null
+++ b/debian/preinst
@@ -0,0 +1,48 @@
+#!/bin/sh -e
+# preinst script for blosxom
+# copyright 2007-2008 by Gerfried Fuchs <rhonda@debian.at>
+# Licenced in the same way as blosxom itself
+
+rm_conffile() {
+       PKGNAME="$1"
+       CONFFILE="$2"
+       if [ -e "$CONFFILE" ]; then
+               md5sum="`md5sum \"$CONFFILE\" | sed -e \"s/ .*//\"`"
+               old_md5sum="`dpkg-query -W -f='${Conffiles}' $PKGNAME | sed -n -e \"\\\\' $CONFFILE '{s/ obsolete$//;s/.* //p}\"`"
+               if [ "$md5sum" != "$old_md5sum" ]; then
+                       echo "Obsolete conffile $CONFFILE has been modified by you."
+                       echo "Saving as $CONFFILE.dpkg-bak ..."
+                       mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
+               else
+                       echo "Removing obsolete conffile $CONFFILE ..."
+                       rm -f "$CONFFILE"
+               fi
+       fi
+}
+
+
+# cleanup for old flavors that got installed by packages prior to 2.1.0
+case "$1" in
+install|upgrade)
+       if dpkg --compare-versions "$2" le-nl "2.1.0-1"; then
+               for i in content_type.1993 content_type.html content_type.index \
+                       date.1993  date.html  date.index \
+                       foot.1993  foot.html  foot.index \
+                       head.1993  head.html  head.index \
+                       story.1993 story.html story.index ; do
+                       rm_conffile blosxom "/etc/blosxom/flavours/$i"
+               done
+       fi
+       if [ -d /var/lib/blosxom/data/flavours ] ; then
+               cd /var/lib/blosxom/data/flavours
+               for i in content_type.1993 content_type.html content_type.index \
+                       date.1993  date.html  date.index \
+                       foot.1993  foot.html  foot.index \
+                       head.1993  head.html  head.index \
+                       story.1993 story.html story.index ; do
+                       test ! -L $i || test ! -f $i || rm $i
+               done
+       fi
+esac
+
+exit 0