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Running git on a Windows XP machine, using bash. I exported my project from SVN and then cloned a bare repository.

I then pasted the export into the bare repositories directory, and did a:

git add -A

I then got a list of messages saying:

LF will be replaced by CRLF

What are the ramifications of this conversion? This is a .NET solution in Visual Studio.

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Why does this warning message occur in the first place? 

Incorrect default value of core.autocrlf on Windows.

Now let us discuss the meaning of two types of warning messages, 

  • First one is 'LF will be replaced by CRLF', this warning message says that you will lose your unix-style LF (Having autocrlf=true) after the commit-checkout cycle and it will be replaced by windows-style CRLF. Note that Git doesn't expect you to use unix-style LF under windows.
  • Second one is 'CRLF will be replaced by LF', this warning message says that you will lose your windows-style CRLF (having autocrlf=input) after performing a commit-checkout cycle and it will be replaced by unix-style LF. Note that you should not use input under windows.

Now let us see how can we resolve this issue: 

During the installation process of Git itself the default value for core.autocrlf is selected.

Which is stored in system-wide gitconfig (%ProgramFiles(x86)%\git\etc\gitconfig). 

Also there:

  •    'global' (per-user) gitconfig located at ~/.gitconfig, yet another
  •    'global' (per-user) gitconfig at $XDG_CONFIG_HOME/git/config or $HOME/.config/git/config and
  •    'local' (per-repo) gitconfig at .git/config in the working dir.

All you need to do is write git config core.autocrlf in the working dir to check the currently used value. 

  •    add autocrlf=false to system-wide gitconfig        
  •    git config --global core.autocrlf false            
  •    git config --local core.autocrlf false              

So for Windows:

  •     Keep the core.autocrlf = true  if you plan to use this project under Unix as well (and unwilling to configure your editor/IDE to use unix line endings),
  •     Keep the core.autocrlf = false if you plan to use this project under Windows only (or you have configured your editor/IDE to use Windows line endings),
  •     But *remember* keep the core.autocrlf = input only you have a good reason to (eg if you're using unix utilities under windows or if you run into makefiles issues)

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