LF will be replaced by CRLF in git - What is that and is it important

Question

When I create a new rails application I m seeing a warning in git about LF replacement  I do      git init     git add    and then boom  I see this pop up for almost all files  I usually just keep going and build my application and it disappears after many changes to files    Example      The file will have its original line endings in your working directory    warning  LF will be replaced by CRLF in Gemfile       The file will have its original line endings in your working directory    warning  LF will be replaced by CRLF in Gemfile lock       The file will have its original line endings in your working directory    warning  LF will be replaced by CRLF in README    What s the difference between LF and CRLF   Should I be concerned about this in the long run or just ignore it and keep going as I usually do

User · Answer

If you want  you can deactivate this feature in your git core config using  git config core autocrlf false   But it would be better to just get rid of the warnings using  git config core autocrlf true

User · Answer

In Unix systems the end of a line is represented with a line feed  LF   In windows a line is represented with a carriage return  CR  and a line feed  LF  thus  CRLF   when you get code from git that was uploaded from a unix system they will only have an LF   If you are a single developer working on a windows machine  and you don t care that git automatically replaces LFs to CRLFs  you can turn this warning off by typing the following in the git command line  git config core autocrlf true   If you want to make an intelligent decision how git should handle this  read the documentation   Here is a snippet     Formatting and Whitespace      Formatting and whitespace issues are some of the more frustrating and   subtle problems that many developers encounter when collaborating    especially cross-platform  It   s very easy for patches or other   collaborated work to introduce subtle whitespace changes because   editors silently introduce them  and if your files ever touch a   Windows system  their line endings might be replaced  Git has a few   configuration options to help with these issues   core autocrlf       If you   re programming on Windows and working with people who are not    or vice-versa   you   ll probably run into line-ending issues at some   point  This is because Windows uses both a carriage-return character   and a linefeed character for newlines in its files  whereas Mac and   Linux systems use only the linefeed character  This is a subtle but   incredibly annoying fact of cross-platform work  many editors on   Windows silently replace existing LF-style line endings with CRLF  or   insert both line-ending characters when the user hits the enter key       Git can handle this by auto-converting CRLF line endings into LF when   you add a file to the index  and vice versa when it checks out code   onto your filesystem  You can turn on this functionality with the   core autocrlf setting  If you   re on a Windows machine  set it to true       this converts LF endings into CRLF when you check out code     git config --global core autocrlf true       If you   re on a Linux or Mac system that uses LF line endings  then you   don   t want Git to automatically convert them when you check out files    however  if a file with CRLF endings accidentally gets introduced    then you may want Git to fix it  You can tell Git to convert CRLF to   LF on commit but not the other way around by setting core autocrlf to   input     git config --global core autocrlf input       This setup should leave you with CRLF endings in Windows checkouts    but LF endings on Mac and Linux systems and in the repository       If you   re a Windows programmer doing a Windows-only project  then you   can turn off this functionality  recording the carriage returns in the   repository by setting the config value to false     git config --global core autocrlf false

[git] LF will be replaced by CRLF in git - What is that and is it important?

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