#!/bin/bash
#                       /usr/local/bin/watchlogs
#  http://crystalfaeries.net/posix/bin/watchlogs
# celeste:crystalfaery WATCHLOGS 2016-08-30 21:51:45+00:00
# monitor logs in the background
# we take an optional -k argument to simply kill running watches
help=6	# of header lines to spew as "help" (number of this line -1)
while [ $# != 0 ]
do	# iterate arguments
	case "$1" in
-h)
	head -n $help $0
	exit
	;;
--help)
	head -n $help $0
	exit
	;;
-v)
	tail -n +4 $0 | head -n 1
	exit
	;;
--version)
	tail -n +4 $0 | head -n 1
	exit
	;;
-k)
	pkill acpitail
	pkill tail
	pkill journalctl
	exit
	;;
*)
	echo "$0 does not cognize $1"
	exit
	;;
esac
shift	# consume argument
done	# iterating arguments

# We really should learn the standard RUN / PID protocols...
# Kill our previous execution so that:
# * we cease tailing wgets no longer running
# * we begin tailing wgets started since then
# same for journalctl so we don't run multiple copies
pkill acpitail
pkill tail
pkill journalctl

if [ \! -r /home/`whoami`/.monitor.txt ]
then	# default logs:
	echo /home/`whoami`/.rawdog/log.txt		>> /home/`whoami`/.monitor.txt
	echo /home/downloads/youtube.com/.youlog.txt	>> /home/`whoami`/.monitor.txt
	echo /usr/local/share/ag/silverlog.txt		>> /home/`whoami`/.monitor.txt
	echo /var/log/apache2/access.log		>> /home/`whoami`/.monitor.txt
	echo /var/log/apache2/error.log			>> /home/`whoami`/.monitor.txt
	echo /var/log/apache2/other_vhosts_access.log	>> /home/`whoami`/.monitor.txt
	echo /var/log/chronicle.log			>> /home/`whoami`/.monitor.txt
	echo /var/log/darchive.log			>> /home/`whoami`/.monitor.txt
	echo /var/log/dar.log				>> /home/`whoami`/.monitor.txt
	echo /var/log/feed2imap.log			>> /home/`whoami`/.monitor.txt
	echo /var/log/messages				>> /home/`whoami`/.monitor.txt
	echo /var/log/rsnapshot.log			>> /home/`whoami`/.monitor.txt
	echo /var/log/syncup.log			>> /home/`whoami`/.monitor.txt
fi
echo "=======	`/usr/local/bin/now`	=======	$0	======="
echo -n "tail -n 1 -F "					>> /tmp/$$.txt
for domain in $(ps -ef --forest | grep wg[e]t | grep -v " sed " | sed 's/https:\/\/// ; s/http:\/\/// ; s/^.* // ; s/\/.*$//' | sort -u)
do
	if [ -r /home/downloads/$domain/.wget.txt ]
	then
		echo -n "/home/downloads/$domain/.wget.txt "	>> /tmp/$$.txt
	else
		echo "`/usr/local/bin/now` $0: /home/downloads/$domain/.wget.txt not readable."	1>&2
	fi
done
for f in $(cat /home/`whoami`/.monitor.txt)
do
	echo -n "$f "						>> /tmp/$$.txt
done
journalctl -f	  &	# tail     systemd	in background
`cat /tmp/$$.txt` &	# tail non-systemd	in background
acpitail	  &	# tail        acpi	in background