DAG与使用Git的树？

本文介绍了DAG与使用Git的树？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我经常阅读Git使用）

注意合并提交C6有两个父母，C4和C5。

I've often read that Git uses the directed acyclic graph (DAG) data structure, with each commit as a node, and things like branches and tags as pointers to nodes.

But when I try to visualize my commit history using tools like gitk, it looks more like a tree than a graph since every parent-child relationship is directed one way.

So, what's the difference between a DAG and a tree, specifically with regards to Git?

解决方案

A DAG, like a tree, can be laid out such that all parent-child relationships are one-way. The difference between them is that nodes in a DAG can have multiple parents. The most common case of this in Git is when you do a merge. A merge commit will have all of the commits that were merged as parents. A tree doesn't allow nodes to have multiple parents.

(Image source)

Notice how the merge commit C6 has two parents, C4 and C5.

这篇关于DAG与使用Git的树？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！