Using GIST in Jenkins

Normally, I have Jenkins checkout of a git repo to do a build.  However, there are times where I just need it to run an individual script.  It seems rather wasteful to add it to an existing repo, since Jenkins would checkout out the entire repo to run a single script.  Additionally, it doesn't make sense to create a repo for a single script.  That's probably why Github has gists.

So, here's how I currently get Jenkins to checkout a gist by adding the following to the shell build step.

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ssh -o StrictHostKeyChecking=no git@gist.github.com
git clone git@gist.github.com:<some gist number>.git .

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The first command disables host checking on the slave and the second command will clone the repo to the local workspace.

So why do I disable the host check?  Since my jenkins slave is dynamically provision, I don't maintain a known hosts file.  Plus, when the job is done, the server is destroyed.