From cfa27b2b56536ce1dd958d7e0a3ed752028145f0 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bonicoli <pierre-louis.bonicoli@gmx.fr>
Date: Tue, 25 Mar 2014 18:42:29 +0100
Subject: [PATCH] [fix] don't override existing debconf values

---
 debian/alternc.config | 46 +++++++++++++++++++++++++++++++------------
 1 file changed, 33 insertions(+), 13 deletions(-)

diff --git a/debian/alternc.config b/debian/alternc.config
index 51d85ead..2200135d 100644
--- a/debian/alternc.config
+++ b/debian/alternc.config
@@ -115,13 +115,19 @@ while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 13 ]; do
     fi
 
     #We ask for the hosting name and the FQDN
-    db_set alternc/hostingname "$HOSTING"
-    db_set alternc/desktopname "$FQDN"
-    db_input high alternc/hostingname || true
+    db_get alternc/hostingname
+    if [ -z "$RET" ]; then
+      db_set alternc/hostingname "$HOSTING"
+      db_input high alternc/hostingname || true
+    fi
   ;;
   2)
     # Get the FQDN
-    db_input high alternc/desktopname || true
+    db_get alternc/desktopname
+    if [ -z "$RET" ]; then
+      db_set alternc/desktopname "$FQDN"
+      db_input high alternc/desktopname || true
+    fi
     # Be sure that the FQDN is lowercase (Bug #1405)
     db_get alternc/desktopname
     db_set alternc/desktopname "`echo $RET | tr '[:upper:]' '[:lower:]'`"
@@ -129,7 +135,10 @@ while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 13 ]; do
   ;;
   3)
     #we ask for the public and private ip
-    db_set alternc/public_ip "$PUBLIC_IP"
+    db_get alternc/public_ip
+    if [ -z "$RET" ]; then
+        db_set alternc/public_ip "$PUBLIC_IP"
+    fi
     STATE=0
     while [ $STATE -eq 0 ]; do
       db_input high alternc/public_ip || true
@@ -157,8 +166,10 @@ while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 13 ]; do
   ;;
   4)
     #private IP
-
-    db_set alternc/internal_ip "$INTERNAL_IP"
+    db_get alternc/internal_ip
+    if [ -z "$RET" ]; then
+        db_set alternc/internal_ip "$INTERNAL_IP"
+    fi
 
     STATE=0
     while [ $STATE -eq 0 ]; do
@@ -173,16 +184,25 @@ while [ "$QUEST_STATE" != 0 -a "$QUEST_STATE" != 13 ]; do
   ;;
   5)
     #We ask for the DNS server for the ip
-    db_set alternc/ns1 "$NS1_HOSTNAME"
-    db_input high alternc/ns1 || true
+    db_get alternc/ns1
+    if [ -z "$RET" ]; then
+      db_set alternc/ns1 "$NS1_HOSTNAME"
+      db_input high alternc/ns1 || true
+    fi
   ;;
   6)
-    db_set alternc/ns2 "$NS2_HOSTNAME"
-    db_input high alternc/ns2 || true
+    db_get alternc/ns2
+    if [ -z "$RET" ]; then
+      db_set alternc/ns2 "$NS2_HOSTNAME"
+      db_input high alternc/ns2 || true
+    fi
   ;;
   7)
-    db_set alternc/default_mx "$DEFAULT_MX"
-    db_input high alternc/default_mx || true
+    db_get alternc/default_mx
+    if [ -z "$RET" ]; then
+      db_set alternc/default_mx "$DEFAULT_MX"
+      db_input high alternc/default_mx || true
+    fi
   ;;
   8)
     if [ "`mysql --defaults-file=/etc/mysql/debian.cnf -Bse 'SELECT "OK";' 2>/dev/null`" = "OK" ]; then