Feature request: operating system specific line endings

Hi,

In the current version of prettier there is an option to force line endings to “crlf” or “lf” (default is “auto” which means to detect the type of the first line ending):

endOfLine: "<auto|lf|crlf|cr>"

I think it would be a good idea to add a new setting for this option, which works like “crlf” on windows and like “lf” on linux so that line endings are changed to what is usual for the os used (similar to git, which uses “lf” on linux when checking out and “crlf” on windows per default).

What do you think about this feature request?

[lydell]

What’s your use case?

[kachkaev]

@mhinterreither Windows folks who switch from CRLF to LF might need to re-check out all files after you’ve set * text=auto eol=lf. This is to ensure that there are no CRLF files in the working directory.

You may also want to search for \r in the repo a few times during the transition period to ensure that no CRLFs slip through. As an extra precaution, feel free to create .editorconfig file and .vscode/settings.json to help editors pick LF when creating new files.