launchd-log

#!/usr/bin/env bash
#
#  Synopsis:
#	Script to help poor logging of launchd and missing docs for SIP.
#  Usage:
#	cd /usr/local/blobio
#	
#	#  source in optional config script
#	echo 'ulimit -n 2048' >>etc/launch-log.conf
#
#	launchd-log bin/flowd server etc/blobio.flow
#
#  Exit Status:
#	*	exit status of launched process
#  	127	unexpected error in launchd-log
#  Note:
#	Why put launched-log in $JMSCOTT_ROOT/sbin?
#	Seems like /bin/ better for permissons, since typically /sbin/
#	is only owned by a particular user.
#
#	Consider renaming script to launchd-helper.
#

PROG=$(basename $0)

log()
{
	echo "$(date +'%Y/%m/%d %H:%M:%S'): $@"
}

die()
{
	log "ERROR: $@" >&1
	exit 127
}

test $# -gt 0 || die 'wrong number of arguments, expected > 0'
PROG="$PROG: $(basename $1)"

log "hello, world"
trap 'log good bye, cruel world' EXIT TERM INT QUIT

CWD=$(pwd)		#  for security issue in new mac os
STATUS=$?
test $STATUS = 0 || die "cwd failed: exit status=$STATUS"
test -n "$CWD" || die 'empty output from pwd command'

log "working directory: $CWD"

CONF=etc/launchd-log.conf
log "launchd config: $CONF"
if [ -r $CONF ];  then
	log "sourcing config file ..."
	. $CONF || exit
else
	log 'no config (ok)'
fi

log 'dump of process environment ...'
env | while read LINE;  do
	log "$LINE"
done

log "executing: $@"
$@ 2>&1 | while read LINE;  do
	log $LINE
done

STATUS=${PIPESTATUS[*]}
log "process exited with status: $STATUS" 
STATUS=$(echo $STATUS | awk '{print $1}')
exit $STATUS