How can I clear out my CruiseControl.Net working directories after a build?

I want to clear out the working directory in a CruiseControl.NET build after the site has been deployed because space is an issue and there's no requirement to keep it.

The way things are set up at the moment everything is on 1 machine (that's unlikely to change), this is acting as both Mercurial repository server, testing web server and CruiseControl.NET build server. So on C:\Repositories\ and C:\inetpub\wwwroot\ we have a folder per website. Also in C:\CCNet\Projects we have a folder per website per type of build (Test and Live) - so that means we've got at least 4 copies of each website on the server and at around 100mb per site X 100 sites that's adding up to a lot of disk space.

What I thought I would like to do is to simply delete the Working Directory on successful build, it only takes 5-10 seconds to completely get a fresh copy (one small advantage to the build server being the same machine as the hg server) and only keep a handful of relatively active projects current. Of the 100 or so sites we'll probably work on no more than 10 in a week (team of 5). I have experimented with a task that runs cmd.exe to /del /s /q the Working Directory folder. Sometimes this will complete successfully, othertimes it will fail with the message that "The process cannot access the file because it is bein开发者_如何学运维g used by another process". When it does complete ok the build kicks off again, presumably because the WD is not found and it needs to be recreated, so I'm finding I'm in a never ending loop there.

Are there any ways I can reduce the amount of space required to run these builds or do I need to put together a business case for increasing hosting costs for our servers?

You need to create your own ccnet task and build the logic into it.

1. Create a new project called ccnet.[pluginname].plugin.
2. Use the artifact cleanup task source as base to get going quickly
3. Change the base directory from result.ArtifactDirectory to whatever you need it to be
4. Compile and place \bin\Debug\ccnet.[pluginname].plugin.dll to c:\Program Files\CruiseControl.NET\server or wherever CCNET is installed.
5. Restart the service and you should be able to use your task in a very similar way as the artifacts cleanup task