From 7c064f5202c9ae9915ae92f684831f2059d3e3a9 Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Mon, 27 Feb 2012 12:50:29 -0300
Subject: Check if config version is supported by keyringer

---
 keyringer               |  4 +++-
 lib/keyringer/functions | 10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/keyringer b/keyringer
index 8904685..8a6eeb1 100755
--- a/keyringer
+++ b/keyringer
@@ -129,14 +129,16 @@ function keyringer_preferences {
 
 # Config
 NAME="keyringer"
+KEYRINGER_VERSION="0.1"
 CONFIG="$HOME/.$NAME/config"
 BASENAME="`basename $0`"
 KEYRING="$1"
 ACTION="$2"
 ACTIONS="`dirname $(readlink -f $0)`/share/$NAME"
 
-# Export preferences for other scripts
+# Export preferences and version for other scripts
 export PREFERENCES="`dirname $CONFIG`/$KEYRING"
+export KEYRINGER_VERSION
 
 # Load functions
 LIB="`dirname $(readlink -f $0)`/lib/$NAME/functions"
diff --git a/lib/keyringer/functions b/lib/keyringer/functions
index a1c95a8..8166370 100644
--- a/lib/keyringer/functions
+++ b/lib/keyringer/functions
@@ -234,6 +234,16 @@ function keyringer_check_version {
   fi
 
   VERSION="`cat $VERSION_INFO`"
+
+  # Check if config version is supported by keyringer
+  if [ "$VERSION" != "$KEYRINGER_VERSION" ]; then
+    NEWEST="`echo -e "$VERSION\n$KEYRINGER_VERSION" | sort -V | tail -n 1`"
+    if [ "$NEWEST" == "$VERSION" ]; then
+      echo "Fatal: keyringer version: $KEYRINGER_VERSION / config version: $VERSION"
+      echo "Please upgrade your keyringer application"
+      exit 1
+    fi
+  fi
 }
 
 # Configuration upgrades
-- 
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