Notes
Did you know that git...
By understanding these concepts, you can better manage your branches and commit.
Branches as Pointers:
- A Git branch is indeed a pointer, but it specifically points to the latest commit in a particular line of development. When you create a new commit on a branch, it extends that branch's history, moving its pointer forward. This does not automatically affect other branches. Each branch maintains its own independent pointer to its latest commit.
Commit History as a Directed Acyclic Graph (DAG):
- Git's commit history is structured as a Directed Acyclic Graph (DAG), where each commit is a snapshot of the repository at a specific point in time. Commits are connected through parent-child relationships, forming a graph. Branches are simply labels or pointers to specific commits within this graph. When you create a new commit on a branch, it adds a new node to the graph, and the branch pointer moves to this new commit. Other branches remain unaffected unless explicitly merged or rebased.
Independent Evolution of Branches:
- Branches evolve independently. Commits made on Branch A do not automatically appear on Branch B because each branch has its own pointer. To see changes from Branch A in Branch B, you need to merge or rebase Branch A into Branch B. This action integrates the commits from Branch A into the history of Branch B.
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