Git Refs

Commit Hash

1. SHA1

2. SHA1 collisions

3. Length (40 characters)

4. Using short hashes

5. Generating hash

6. Contains information about whole history

Refs

• .git/refs/*

HEAD

• .git/HEAD

Branches

Stating Area

Reset

$ git reset --hard
$ git reset --soft
$ git reset --mixed

Revert

$ git reset --hard HEAD