control

#!/bin/bash
HOMEDIR=$(cd $(dirname $0); pwd)
cd $HOMEDIR

module=mailsender
app=tycs-$module
cfg=cfg.json
pidfile=var/app.pid
logfile=var/app.log

mkdir -p var
mkdir -p bin

## internal funciton
function checkpid(){
	if [ -f $pidfile ]; then
		pid=`cat $pidfile`
		if [ -n $pid ]; then
			running=`ps -p $pid | grep -v "PID TTY" | wc -l`
			return $running
		fi
	fi
	return 0
}


## 
function build(){
	go build -o $app main.go
	if [ $? == 0 ]; then
		./$app -v
	else
		echo -e "build error"
	fi
}

function pack(){
	build
    version=`./$app -v`
    tar zcvf $app-$version.tar.gz control $app cfg.example.json ./test/debug
}

function packbin(){
	build
    version=`./$app -v`
    tar zcvf ./bin/$app.tar.gz control $app cfg.example.json ./test/debug
}

## 
function start(){
	checkpid
	running=$?
	if [ $running -gt 0 ]; then
		echo -n "$app running, pid="
		cat $pidfile
		return 1
	fi	

	nohup ./$app -c $cfg &>$logfile &
	echo $! > $pidfile
	echo -e "$app start ok, pid=$!"
}
function stop(){
	pid=`cat $pidfile`
	kill -9 $pid && echo "$app killed -9"
}
function restart(){
	stop
	sleep 1
	start
}

##
function version(){
	if [ -f $app ]; then
		./$app -v
	fi	
}

function status() {
    checkpid
    running=$?
    if [ $running -gt 0 ];then
        echo -n "$app running, pid="
        cat $pidfile
    else
        echo "$app not running"
    fi
}

case $1 in
	"build")
		build
		;;
	"pack")
		pack
		;;
	"packbin")
		packbin
		;;
	"start")
		start
		;;
	"stop")
		stop	
		;;
	"restart")
		restart
		;;
	"version")
		version	
		;;
	"status")
		status
		;;
	"tail")
		tail -f $logfile
		;;
	"less")
		less $logfile
		;;
	*)
		;;
esac