It’s fantastic – configurable from the UI, it archives build logs as well as artifacts, it’s got console output in the browser, and so on. Why didn’t we switch earlier?!

Anyhow, only slight modification need to make the lava lamps work with Hudson.

The lamps are controlled by an IP power switch, with the 4 outlets turned on or off by hitting a url with some GET parameters (ok, it’s not RESTful, but come on..). A cron job fires invokes the script every minute with the “check” command to parse the RSS feed of latest build results from Hudson, and light the lights accordingly.

Cron also calls the “off” function after 5pm, to save the lamps from burning out overnight.

The script is something like this :

#!/bin/bash
check() {

        # check Hudson on localhost and switch on lamps accordingly

        FAILCOUNT=`wget -O - -o wget.log http://localhost:8080/rssLatest | grep FAIL | wc -l`

        PASSCOUNT=`wget -O - -o wget.log http://localhost:8080/rssLatest | grep SUCCESS | wc -l`

        if [ $FAILCOUNT != 0 ]; then

                echo  `date` " : BUILD HAS FAILED"

                fail

        elif [ $PASSCOUNT != 0 ]; then

                echo  `date` " : BUILD IS OK"

                pass

       fi

}

pass() {

        # switch outlet 1 on and 3 off

        wget http://ip-switch.local/Set.cmd?CMD=SetPower+P60=1+P62=0 -q --delete-after

}

fail() {

        # switch outlet 3 on and 1 off

        wget http://ip-switch.local/Set.cmd?CMD=SetPower+P60=0+P62=1 -q --delete-after

}

off() {

        # switch them all off and go home

        wget http://ip-switch.local/Set.cmd?CMD=SetPower+P60=0+P62=0 -q --delete-after

}

exit