让git只将一个文件识别为更改的方法(如果有一组以上的特定行发生更改)? [英] Way to have git only recognize a file as changed if more than a specific set of lines change?

问题描述

在我当前的项目中，我试图使用git来对文本文件进行版本控制，这些文本文件由从中生成代码的软件所利用.这本身不是问题，问题在于每次我生成代码时，它都会使用属性(例如，代码生成的日期以及我的名字)自动更新此文件.

In my current project, I am attempting to use git to version control text files that are utilized by software that generates code from them. This in itself isn't a problem, the problem is that every time I generate code, it automatically updates this file with properties such as the date the code was generated, as well as my name.

您可以想象它看起来像这样:

You can imagine it looking something like this:

SomeHeader{
  -SomeProperty : x
  -NameOfUserThatGenerateCode: myName
  -DateTimeCodeGenerated: 2013-07-23 06:28
  -SomeOtherProperty: y
}

我想要的是一种告诉git如果Name和CodeGeneration时间都更改的情况(也就是:忽略更改)的方法，那就可以了，但是要注意"SomeProperty"是否更改为说"z".

What I want, is a way to tell git to say that "it is okay" if both the Name and CodeGeneration time to change (ie: Ignore that there was a change), but DO care if "SomeProperty" changes to say "z".

在第二种情况下，它将提交整个文件(带有更新的自动生成的文件).

In that second case, it would commit the entire file (with the updated autogenerated files).

反正有这样做吗?我知道git确实会在文件"级别上进行更改，但是我希望可能会有某种我可以绑定到的预处理钩子，只有在git尝试比较文件更改时才能起作用.

Is there anyway to do that? I recognize that git does changes at the "file" level, but I am hoping that there might be some sort of pre-processing hook that I can tie into that would only work when git attempts to compare file changes.

对于那些关心的人，这将使我能够正确地控制狂想曲文件的版本.

For those that care, this will enable me to properly version control rhapsody files.

推荐答案

我建议:

• 保留这些文件的副本(作为私有文件，表示未版本化):您的软件将在这些副本中生成代码
• 一个clean脚本，作为内容过滤器驱动程序，在

• keeping a copy of those files (as private files, meaning not versioned): your software would generate code in those copy
• a clean script, as a content filter driver, declared in a .gitattributes file (detailed in Git Pro book).

想法是要在git add 上检测该脚本:

The idea is for that script to detect, on git add:

• "SomeHeader"属性文件的内容
• 如果该文件的副本已更改，您需要保留(在这种情况下，您将使用该副本的内容覆盖版本控制的文件)
• 如果该文件的副本没有显着变化，则在这种情况下，您无需修改​​实际的属性文件.

• the content of a 'SomeHeader' property file
• if the copy of that file has changed in way you need to keep (in which case you overwrite the versioned file with the content of that copy)
• if the copy of that file has not changed significantly, in which case, you don't modify the actual property file.

请注意，也可以通过内容过滤器驱动程序自动执行保留副本"部分，并在git checkout上自动激活smudge脚本.

Note that the "keep a copy" part can be automated also by a content filter driver, with a smudge script activated automatically on git checkout.

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