哪个分支从一个被删除的分支提交属于？ [英] Which branch do commits from a deleted branch belong to?

问题描述

如果我将分支A合并到分支B中，然后删除A，哪个分支从分支A提交（现在删除）属于？

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Git分支仅仅是提交的指针。询问

这个提交属于哪个分支？

没有任何意义（至少在一般情况下），因为提交可能很容易从多个分支（甚至根本就没有！）获得。

考虑下面的例子：

提交 F 目前只能从 bugfix code>分支;在这一点上，有意义的说，提交 F 属于 bugfix 分支。但是，如果您然后通过运行
>将 bugfix 合并到 master 中， git checkout master
git合并bugfix


然后提交 F 可以从这两个分支到达： b
$ b




提交 F 不能再被认为属于 bugfix 多于 master 。
如果你删除 bugfix ，commit F 将只能从一个分支 master 这次，在这种情况下，可以说commit f 属于 master 。

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总之，一般来说，提交不能被认为是专属属于任何一个分支。然而，总是确实有意义的问题是

从哪个分支（如果有的话） ？

If I merge branch A into branch B and then delete A, which branch do commits from branch A (now deleted) belong to?

解决方案

Git branches are mere pointers to commits. Asking

Which branch does this commit belong to?

doesn't really make sense (at least, not in the general case) because commits may very well be reachable from multiple branches (or even from none at all!).

Consider the following example:

Commit F is currently only reachable from the bugfix branch; at this point, it makes sense to say that commit F "belongs" to the bugfix branch. However, if you then merge bugfix into master, by running

git checkout master
git merge bugfix

then commit F becomes reachable from both of those branches:

Commit F can no longer be said to belong to bugfix more than to master. If you then delete bugfix, commit F will again be reachable from only one branch, master this time, in which case it will make sense to say that commit F "belongs" to master.

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In summary, a commit cannot, in general, be thought of as exclusively belonging to any one branch. However, a question that always does make sense is

From which branches (if any) is this commit reachable?

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