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#!/bin/sh
export RAILS_ENV=production
export RAILS_ROOT=$(readlink -f `dirname $0`)
PID="$RAILS_ROOT/tmp/pids/unicorn.pid"
PID_OLD="$PID.oldbin"
sig () {
test -s $PID && kill -$1 `cat $PID`
}
sig_old () {
test -s $PID_OLD && kill -$1 `cat $PID_OLD`
}
error () {
echo $1
exit 1
}
unicorn_start="bundle exec unicorn_rails -D -E $RAILS_ENV -c $RAILS_ROOT/config/unicorn.rb -l 4000"
case "$1" in
start)
sig 0 && error "Unicorn already started!"
$unicorn_start && echo "Unicorn started!" || error "Unicorn failed to start!"
;;
stop)
sig QUIT && echo "Unicorn stopped" || error "Unicorn not started!"
;;
restart)
sig 0 || error "Unicorn not started!"
sig USR2 && sleep 5
sig_old QUIT && echo "Quit old unicorn" `cat $PID_OLD` || echo "Couldn't quit old unicorn"
;;
status)
sig 0 && echo "Unicorn started" || echo "Unicorn stopped"
;;
*)
error "usage: $0 {start|stop|restart|status}"
esac
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