1 files changed, 27 insertions, 0 deletions
diff --git a/mail/imp/files/pkg-deinstall.in b/mail/imp/files/pkg-deinstall.in
new file mode 100644
index 000000000000..13bb805c47d5
--- /dev/null
+++ b/mail/imp/files/pkg-deinstall.in
@@ -0,0 +1,27 @@
+#!/bin/sh
+#
+# $FreeBSD$
+#
+# Backup IMP config files, if needed.
+
+if [ x$2 != xDEINSTALL ]; then
+    exit
+fi
+
+if [ -z "${PACKAGE_BUILDING}" ]; then
+  for cf in `ls %%IMPDIR%%/config/*php %%IMPDIR%%/config/*txt`; do
+    diff -bBqw $cf $cf.dist >/dev/null 2>&1
+    case $? in
+      0)  # original config file, will be deleted by pkg-plist
+          ;;
+      1)  # config file has been updated, must be backuped
+          cp -p $cf $cf.previous
+          echo "===> Backing-up..."
+          echo "--->   $cf has been saved ***"
+          echo "--->      as $cf.previous ***"
+          ;;
+      *)  # not found?
+          ;;
+    esac
+  done
+fi