如何快速备份要通过git clean删除的未跟踪文件? [英] How to make quick backup of untracked files which I want to delete by git clean?

问题描述

我有很多未跟踪的文件.我很确定我可以删除其中的大多数内容，但是...您知道，备份可能会有所帮助;)

I have a lot of untracked files. I am pretty sure that most of them I can delete, however... you know, backup could be helpful ;)

在类似情况下您正在做什么?

What you are doing in similar situation?

推荐答案

以下命令将在您的主目录中创建目录中所有未跟踪(但不忽略)的tar存档:

The following command will create a tar archive in your home directory of all of the untracked (and not ignored) files in your directory:

git ls-files --others --exclude-standard -z | xargs -0 tar rvf ~/backup-untracked.tar

如果要使用此技术，请仔细检查git ls-files --others --exclude-standard本身是否会产生您期望的文件列表！

If you're going to use this technique, check carefully that git ls-files --others --exclude-standard on its own produces the list of files you expect!

有关此解决方案的一些注意事项可能是有条理的:

A few notes on this solution might be in order:

• 我已经使用-z来获取git ls-files，以NUL(零字节)作为文件之间的分隔符来输出文件列表，并且xargs的-0参数告诉它认为NUL是它从标准输入读取的参数之间的分隔符.这是处理文件名可能包含换行符的一种标准技巧，因为Linux上文件名中不允许的唯一两个字节是NUL和/.

• I've used -z to get git ls-files to output the list of files with NUL (a zero byte) as the separator between files, and the -0 parameter to xargs tells it to consider NUL to be the separator between the parameters it reads from standard input. This is a standard trick to deal with the possibility that a filename might contain a newline, since the only two bytes that aren't allowed in filenames on Linux are NUL and /.

如果您有大量未跟踪的文件，那么xargs将多次运行tar命令，因此，重要的是，我告诉tar附加文件(r)而不是而不是创建一个新的存档(c)，否则以后tar的调用将覆盖之前创建的存档.

If you have a huge number of untracked files then xargs will run the tar command more than once, so it's important that I've told tar to append files (r) rather than create a new archive (c), otherwise the later invocations of tar will overwrite the archive created just before.

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