1 files changed, 41 insertions, 0 deletions
diff --git a/debian/runit.preinst b/debian/runit.preinst
new file mode 100644
index 0000000..300fab8
--- /dev/null
+++ b/debian/runit.preinst
@@ -0,0 +1,41 @@
+#! /bin/sh
+# preinst script for runit
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <new-preinst> `install'
+#        * <new-preinst> `install' <old-version>
+#        * <new-preinst> `upgrade' <old-version>
+#        * <old-preinst> `abort-upgrade' <new-version>
+#
+# for details, see http://www.debian.org/doc/debian-policy/ or
+# the debian-policy package
+
+
+case "$1" in
+    install|upgrade)
+      if [ -n "$2" ]; then
+        # upgrading
+        if [ -x /sbin/runit ]; then
+          rm -f /sbin/runit.old
+          ln /sbin/runit /sbin/runit.old
+        fi
+      fi
+    ;;
+    abort-upgrade)
+    ;;
+    *)
+      echo "preinst called with unknown argument \`$1'" >&2
+      exit 1
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0