X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=packaging%2Fdebian%2Fmonkeysphere.prerm;h=1a5135a5e9cdc9418956cda090876083878972c7;hb=34ee2c761045becff8f78a64e70aff3e6ade2617;hp=00523a11044a63a45acde2fcd820b74ed4afeee3;hpb=d39039bbc33b3f6cff881114b7accd3e7cffdc94;p=monkeysphere.git

diff --git a/packaging/debian/monkeysphere.prerm b/packaging/debian/monkeysphere.prerm
index 00523a1..1a5135a 100755
--- a/packaging/debian/monkeysphere.prerm
+++ b/packaging/debian/monkeysphere.prerm
@@ -2,15 +2,31 @@
 
 # prerm script for monkeysphere
 
-# Author: Jameson Rollins <jrollins@fifthhorseman.net>
-# Copyright 2008
+# the only thing we're doing here is making sure that the local
+# administrator is not trying to downgrade to a version below 0.23,
+# since there was such a major reorganization of system data during
+# the transition to 0.23.
 
-VARLIB="/var/lib/monkeysphere"
+# Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
+# Copyright 2009
 
-rm -f "$VARLIB"/gnupg-host/gpg.conf
-rm -f "$VARLIB"/gnupg-authentication/gpg.conf
-rmdir --ignore-fail-on-non-empty "$VARLIB"/gnupg-host
-rmdir --ignore-fail-on-non-empty "$VARLIB"/gnupg-authentication
+set -e
+
+case "$1" in
+    upgrade)
+	if dpkg --compare-versions "$2" lt 0.23 ; then
+	    cat >&2 <<EOF
+
+Downgrading the monkeysphere to a version earlier than 0.23 can have
+BAD CONSEQUENCES, including potentially locking you out of the system.
+Downgrading in this fashion is NOT SUPPORTED.
+
+EOF
+
+	    exit 1
+	fi
+    ;;
+esac
 
 # dh_installdeb will replace this with shell code automatically
 # generated by other debhelper scripts.