为什么git-filter-branch不能重写标签？ [英] Why has git-filter-branch not rewritten tags?

问题描述

我需要将我的git repo分成两部分。我使用这里显示的步骤：将子目录分离（移动）到单独的Git存储库

我使用的命令是：

  git filter-branch --subdirectory-filter ABC HEAD  -  --all 
  

这似乎工作正常

但是现在如果我尝试检出分割回购前存在的标签：

  git checkout an-old-tagname 
  

它重新创建旧的目录结构 - 所以重新创建ABC作为一个子目录，以及XYZ1和XYZ2。

我知道回购实际上是如何看待这个时间点的 - 但我希望这个标签只是指ABC字节，就好像它们当时在根部。我认为这就是过滤器分支在重写历史时所做的事情，但显然我没有正确理解它。

我怎样才能重写标签所以我可以回到过去，而仍然有ABC成为回购的根源？

你需要指定

   -  tag-name-filter cat 
  

重写标签

现在，您可以做

lockquote

git filter-branch --tag-name-filter cat _{^{...其他过滤选项...}} - --tags

其中 ^{_{...其他过滤选项...}} 重复您先前应用的过滤器。

I needed to split my git repo into two parts. I used the steps shown here: Detach (move) subdirectory into separate Git repository

The command I used was:

 git filter-branch --subdirectory-filter ABC HEAD -- --all

which seemed to work fine and left me with ABC as the root.

However now if if I try to checkout a tag that existed before I split the repo:

 git checkout an-old-tagname

it's recreating the old directory structure - so recreating ABC as a subdirectory, along with XYZ1 and XYZ2.

I know that is how the repo really looked at that point in time - but I want the tag to refer to just the ABC bits, as if they'd been at the root back then. I thought that's what filter-branch was doing when it re-wrote history, but obviously I don't grok it properly.

How can I get the tags re-written so I can go back in time while still having ABC be the root of the repo?

解决方案

You need to specify

--tag-name-filter cat

to rewrite tags as well

Now, you could do

git filter-branch --tag-name-filter cat _{^{...other filter options...}} -- --tags

where _{^{...other filter options...}} repeats the filters you previously applied.

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