Git 中的 HEAD 是什么? [英] What is HEAD in Git?

问题描述

您会看到 Git 文档说诸如

You see the Git documentation saying things like

必须在 HEAD 中完全合并分支.

The branch must be fully merged in HEAD.

但是 Git HEAD 到底是什么?

But what is Git HEAD exactly?

推荐答案

您可以将 HEAD 视为当前分支".当您使用 git checkout 切换分支时，HEAD 修订版会更改为指向新分支的尖端.

You can think of the HEAD as the "current branch". When you switch branches with git checkout, the HEAD revision changes to point to the tip of the new branch.

您可以通过执行以下操作来查看 HEAD 指向的内容:

You can see what HEAD points to by doing:

cat .git/HEAD

就我而言，输出是:

$ cat .git/HEAD
ref: refs/heads/master

HEAD 可能引用与分支名称无关的特定修订.这种情况称为 分离的 HEAD.

It is possible for HEAD to refer to a specific revision that is not associated with a branch name. This situation is called a detached HEAD.

这篇关于Git 中的 HEAD 是什么?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IT屋！