#!/usr/bin/env bash
#
# --- T2-COPYRIGHT-NOTE-BEGIN ---
# T2 SDE: scripts/Build-Job
# Copyright (C) 2004 - 2023 The T2 SDE Project
# Copyright (C) 1998 - 2003 ROCK Linux Project
# 
# This Copyright note is generated by scripts/Create-CopyPatch,
# more information can be found in the files COPYING and README.
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2.
# --- T2-COPYRIGHT-NOTE-END ---

config=default
xdaemon=0
daemon=0

while [ "$1" ]; do
    case "$1" in
	-daemon)
		daemon=1  ; shift ;;
	-xdaemon)
		xdaemon=1; shift ;;
	-cfg)
		config=$2; shift; shift ;;
	-*)
		echo "Usage: $0 [ -cfg config ] { -daemon | job(s) }"
		exit 1 ;;
	*)
		break ;;
    esac
done

. scripts/parse-config
qdir="build/$SDECFG_ID/TOOLCHAIN/queue"

build_logs="build/$SDECFG_ID/TOOLCHAIN/logs"
mkdir -p "${build_logs}"

if [ $daemon = 1 ]; then
    if [ -f $qdir/queue.txt ]; then
	if [ -f $qdir/use_build_job_daemon ]; then
		nohup $0 -cfg $config -xdaemon > /dev/null &
		sleep 1; exit 0
	else
		echo
		echo "The build has been configured to use a command for"
		echo "adding jobs (useing another job scheduler)."
		echo
		exit 1
	fi
    else
	echo
	echo "$qdir:"
	echo "Queue not found! Please start 'Build-Target -cfg $config'"
	echo "first on the master node ..."
	echo
	exit 1
    fi
fi

if [ $xdaemon = 1 ]; then
	echo "Writing output to $build_logs/build_job_${HOSTNAME}_$$.log." >&2
	exec > "$build_logs/build_job_${HOSTNAME}_$$.log" 2>&1 < /dev/null

	echo -e "Build-Job (daemon mode)\trunning on ${HOSTNAME} with PID $$" \
				> "$qdir/build_job_${HOSTNAME}_$$.stat"
	date "+%H:%M ${HOSTNAME}	new build-job daemon with PID $$" \
				>> $qdir/1_$qid.msg

	while [ -f $qdir/queue.txt -a -f $qdir/use_build_job_daemon -a \
			-f "$qdir/build_job_${HOSTNAME}_$$.stat" ]; do
		didsomething=0
		while read next && [ "$next" ]; do
			set $next; qid="$1-$6"
			if [ -f $qdir/$qid.job -a ! -f $qdir/$qid.lock ]; then
				$0 -cfg $config $qid
				didsomething=1; break
			fi
		done < $qdir/queue.txt
		[ $didsomething = 1 ] || sleep 3
	done

	rm -f "$qdir/build_job_${HOSTNAME}_$$.stat"
	if [ -f $qdir/queue.txt ]; then
		date "+%H:%M ${HOSTNAME}%tbuild-job daemon ended ($$)" \
							>> $qdir/8_$qid.msg
	fi
	echo "Queue has been removed. exit now."
	exit 0
fi

for qid; do
	if [ -f $qdir/$qid.job ]; then
		if ! mv $qdir/$qid.todo $qdir/$qid.lock 2> /dev/null; then
			echo "Job locked by other build proc:" \
			     "$qid ($qdir/$qid.lock)!"
			exit 1
		fi

		. $qdir/$qid.job
		date "+Job $qid%t$HOSTNAME ($PPID) since %H:%M %Y-%m-%d"  \
							> $qdir/$qid.lock
		date "+%H:%M ${HOSTNAME}:%tbuilding job '$qid' ($PPID) .." \
							>> $qdir/6_$qid.msg
		pkgloop_package $next
		if [ -f "${build_root}/var/adm/logs/$qid.log" ]; then
			date "+%H:%M ${HOSTNAME}:%tfinished job '$qid' `
					`(ok)" >> $qdir/3_$qid.msg
		else
			date "+%H:%M ${HOSTNAME}:%tfinished job '$qid' `
					`(ERROR)" >> $qdir/3_$qid.msg
		fi
		rm -f $qdir/$qid.lock $qdir/$qid.job
	else
		echo "No such job: $qid ($qdir/$qid.job)!"; exit 1
	fi
done