Shell scripts are very useful little things. Google App Engine makes deploying apps a single-line affair, but I was still finding myself going through a series of steps when deploying updates to The GAE SWF Project, mostly because I wanted to release the source code as a zip file for download. So, I hacked together a script in bash and now it's a painless process (I could probably have done the same thing using Ant, but I've also been wanting to play with bash scripts for a while now!)

Here it is, in case bits of it help you too:

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