From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sun, 19 Jan 2014 20:39:07 +0000 (+0100)
Subject: Add timezone transision script.
X-Git-Url: http://git.ipfire.org/?p=people%2Fteissler%2Fipfire-2.x.git;a=commitdiff_plain;h=86661c9ed081424e45a4af1b60d937de463df4da

Add timezone transision script.
---

diff --git a/config/rootfiles/common/stage2 b/config/rootfiles/common/stage2
index 4286cec99..3caa839fb 100644
--- a/config/rootfiles/common/stage2
+++ b/config/rootfiles/common/stage2
@@ -91,6 +91,7 @@ usr/local/bin/scanhd
 usr/local/bin/setddns.pl
 usr/local/bin/settime
 usr/local/bin/timecheck
+use/local/bin/timezone-transition
 #usr/local/bin/uname
 usr/local/bin/update-lang-cache
 #usr/local/include
diff --git a/src/scripts/timezone-transition b/src/scripts/timezone-transition
new file mode 100644
index 000000000..a8e436f1b
--- /dev/null
+++ b/src/scripts/timezone-transition
@@ -0,0 +1,37 @@
+#!/bin/bash
+############################################################################
+#                                                                          #
+# This file is part of the IPFire Firewall.                                #
+#                                                                          #
+# IPFire is free software; you can redistribute it and/or modify           #
+# it under the terms of the GNU General Public License as published by     #
+# the Free Software Foundation; either version 2 of the License, or        #
+# (at your option) any later version.                                      #
+#                                                                          #
+# IPFire is distributed in the hope that it will be useful,                #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of           #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the            #
+# GNU General Public License for more details.                             #
+#                                                                          #
+# You should have received a copy of the GNU General Public License        #
+# along with IPFire; if not, write to the Free Software                    #
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA #
+#                                                                          #
+# Copyright (C) 2014 IPFire Team <info@ipfire.org>                         #
+#                                                                          #
+############################################################################
+
+# This script checks if a daylight saving time transition
+# has just happened and will run the given command.
+
+HOUR_NOW=$(date "+%H")
+HOUR_THEN=$(date --date="1 hour ago" "+%H")
+
+# We expect that the result in HOUR_THEN is HOUR_NOW - 1
+HOUR_EXPECTED=$(( ${HOUR_NOW} - 1 ))
+
+if [ "${HOUR_EXPECTED}" -eq "${HOUR_THEN}" ]; then
+	exit 0
+fi
+
+$@