1 files changed, 45 insertions, 0 deletions
diff --git a/debian/mdadm.preinst b/debian/mdadm.preinst
new file mode 100644
index 00000000..b90ffb87
--- /dev/null
+++ b/debian/mdadm.preinst
@@ -0,0 +1,45 @@
+#!/bin/sh
+# Copyright © martin f. krafft <madduck@debian.org>
+# Distributed under the terms of the Artistic Licence 2.0
+#
+set -e
+
+# based on idea from http://www.dpkg.org/dpkg/ConffileHandling
+rm_conffile() {
+    local conffile md5sum package old_md5sum
+
+    conffile="$1"
+    if [ -e "$conffile" ]; then
+        md5sum=$(md5sum "$conffile" | cut -d' ' -f1)
+        package=$(dpkg -S "$conffile" | cut -d: -f1)
+        old_md5sum=$(dpkg -s $package | sed -rne "s,[[:space:]]+${conffile}[[:space:]]+,,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
+}
+
+case "$1" in
+
+  upgrade|install)
+
+    # migrate old configuration from *way back then*
+    DEBIANCONFIG=/etc/default/mdadm
+    OLDCONFIG=/etc/mdadm/debian.conf
+    if [ -s $OLDCONFIG ] && [ ! -f $DEBIANCONFIG ]; then
+      mv $OLDCONFIG $DEBIANCONFIG
+    fi
+
+    # Used incorrect name s/_/-/, keep all throughout until after jessie is released.
+    rm_conffile /etc/udev/rules.d/65-mdadm.vol_id.rules
+    ;;
+
+  *) :;;
+esac
+
+#DEBHELPER#