Git Crash Course
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# Git is...
* a collection of commits that represent code changes
* distributed (redundant)
* flexibile
* network optional

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# can be a little intimidating
![](img/githater.png)

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# a commit is...
* snapshot, not a diff
* referred to by a checksum (not a name)
* takes up more space, but bits are cheap
* store links to files that haven't changed

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# stop worrying
* Git (generally) only adds data
* it's hard to lose things once committed
* almost always possible to roll back changes
* other than 'fetch', 'push', and 'pull', nearly everything is local

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# three (or four) stages of Git #
![](img/three_stages.png)

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# basic workflow #
1. ### make some changes
1. ### stage snapshots of files
1. ### commit
1. ### (eventually) push

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# a commit has...
* a checksum
* all blobs contained in the commit
* a comment (please use these)

Format your commit like:

	80 character summary

	longer description of
	changes, maybe include a bulleted
	list of changes you made