[people/teissler/ipfire-2.x.git] / src / scripts / timezone-transition

#!/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

$@
Commit	Line	Data
86661c9e MT	1	#!/bin/bash
	2	############################################################################
	3	# #
	4	# This file is part of the IPFire Firewall. #
	5	# #
	6	# IPFire is free software; you can redistribute it and/or modify #
	7	# it under the terms of the GNU General Public License as published by #
	8	# the Free Software Foundation; either version 2 of the License, or #
	9	# (at your option) any later version. #
	10	# #
	11	# IPFire is distributed in the hope that it will be useful, #
	12	# but WITHOUT ANY WARRANTY; without even the implied warranty of #
	13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
	14	# GNU General Public License for more details. #
	15	# #
	16	# You should have received a copy of the GNU General Public License #
	17	# along with IPFire; if not, write to the Free Software #
	18	# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #
	19	# #
	20	# Copyright (C) 2014 IPFire Team <info@ipfire.org> #
	21	# #
	22	############################################################################
	23
	24	# This script checks if a daylight saving time transition
	25	# has just happened and will run the given command.
	26
	27	HOUR_NOW=$(date "+%H")
	28	HOUR_THEN=$(date --date="1 hour ago" "+%H")
	29
	30	# We expect that the result in HOUR_THEN is HOUR_NOW - 1
	31	HOUR_EXPECTED=$(( ${HOUR_NOW} - 1 ))
	32
	33	if [ "${HOUR_EXPECTED}" -eq "${HOUR_THEN}" ]; then
	34	exit 0
	35	fi
	36
	37	$@