This is unlikely to help you understand git, but I've been surprised
before.
- Git doesn't have an inherent concept of diffs (though stuff may be stored internally that way for efficiency). Every commit can be thought of as a static snapshot of your project. Diffs are computed on the fly.
- Git is a content addressable filesystem. Basically a hash table with
signature
{commit ID: Filesystem state at that ID}. All operations are computed from that basic data structure. - Commits know their parents but not their children.
- Tags and
HEADare just pointers. - Being careful about what you commit in what order will save you a lot of pain and rebasing.
- A lot of Git's commands are named surprisingly well iff you know its
data model.
Pickaxeis still a stupid name.
- Being able to visualize a DAG changing and where you are on it is what made all the difference.
- Git still isn't easy to use. I can never put it in the back of my mind.