如何删除旧的git历史记录? [英] How to delete the old git history?

问题描述

我有很多(2000多个)提交的git存储库，例如:

I have git repository with many, many (2000+) commits, for example:

                 l-- m -- n   
                /
a -- b -- c -- d -- e -- f -- g -- h -- i -- j -- k
                     \
                      x -- y -- z

并且我想截断旧的日志历史记录-从日志历史记录中删除所有提交(例如，从提交"f"开始，但作为存储库的开头).

and I want to truncate old log history - delete all commits from log history starting from (for example) commit "f" but as the beginning of repository.

该怎么做?

推荐答案

为了不丢失一些历史记录；最好先复制您的存储库副本:).我们开始:(<f>是您想要成为新的根提交的提交f的阴影)

In order not to lose some history; better first take a copy of your repository :). Here we go: (<f> is the sha of the commit f that you want to be the new root commit)

git checkout --orphan temp <f>      # checkout to the status of the git repo at commit f; creating a branch named "temp"
git commit -m "new root commit"     # create a new commit that is to be the new root commit
git rebase --onto temp <f> master   # now rebase the part of history from <f> to master onthe temp branch
git branch -D temp                  # we don't need the temp branch anymore

如果您有一个要在其中具有相同的截断历史记录的遥控器，请执行以下操作:您可以使用git push -f. 警告:这是一个危险的命令；不要轻易使用它！如果您要确保代码的最新版本仍然相同，请执行以下操作:您可以运行git diff origin/master.那应该不显示任何更改(因为仅更改了历史记录；不更改了文件的内容).

If you have a remote where you want to have the same truncated history; you can use git push -f. Warning this is a dangerous command; don't use this lightly! If you want to be sure that your last version of the code is still the same; you can run git diff origin/master. That should show no changes (since only the history changed; not the content of your files).

git push -f  

以下2条命令是可选的-它们可以使您的git repo保持良好状态.

The following 2 commands are optional - they keep your git repo in good shape.

git prune --progress                 # delete all the objects w/o references
git gc --aggressive                  # aggressively collect garbage; may take a lot of time on large repos

这篇关于如何删除旧的git历史记录?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！