#!/bin/sh
# /usr/lib64/sa/sa1
# (C) 1999-2012 Sebastien Godard (sysstat <at> orange.fr)
#
#@(#) sysstat-10.1.5
#@(#) sa1: Collect and store binary data in system activity data file.
#

# Set default value for some variables.
# Used only if ${SYSCONFIG_DIR}/sysstat doesn't exist!
HISTORY=0
SADC_OPTIONS=""
DDIR=/var/log/sa
DATE=`date +%d`
CURRENTFILE=sa${DATE}
CURRENTDIR=`date +%Y%m`
SYSCONFIG_DIR=/etc/sysconfig
umask 0022
[ -r ${SYSCONFIG_DIR}/sysstat ] && . ${SYSCONFIG_DIR}/sysstat
if [ ${HISTORY} -gt 28 ]
then
	cd ${DDIR} || exit 1
	[ -d ${CURRENTDIR} ] || mkdir -p ${CURRENTDIR}
	# If ${CURRENTFILE} exists and is a regular file, then make sure
       	# the file was modified this day (and not e.g. month ago)
	# and move it to ${CURRENTDIR}
	[ ! -L ${CURRENTFILE} ] &&
		[ -f ${CURRENTFILE} ] &&
		[ "`date +%Y%m%d -r ${CURRENTFILE}`" = "${CURRENTDIR}${DATE}" ] &&
		mv -f ${CURRENTFILE} ${CURRENTDIR}/${CURRENTFILE}
	touch ${CURRENTDIR}/${CURRENTFILE}
	# Remove the "compatibility" link and recreate it to point to
	# the (new) current file
	rm -f ${CURRENTFILE}
	ln -s ${CURRENTDIR}/${CURRENTFILE} ${CURRENTFILE}
else
	# If ${CURRENTFILE} exists, is a regular file and is from a previous
	# month then delete it so that it is recreated by sadc afresh
	[ -f ${CURRENTFILE} ] && [ "`date +%Y%m -r ${CURRENTFILE}`" -lt "${CURRENTDIR}" ] && rm -f ${CURRENTFILE}
fi
ENDIR=/usr/lib64/sa
cd ${ENDIR}
[ "$1" = "--boot" ] && shift && BOOT=y || BOOT=n
if [ $# = 0 ] && [ "${BOOT}" = "n" ]
then
# Note: Stats are written at the end of previous file *and* at the
# beginning of the new one (when there is a file rotation) only if
# outfile has been specified as '-' on the command line...
	exec ${ENDIR}/sadc -F -L ${SADC_OPTIONS} 1 1 -
else
	exec ${ENDIR}/sadc -F -L ${SADC_OPTIONS} $* -
fi