chore: unify line endings for all files for any new clone

[ShuiRuTian]

Summary

Motivation: To make .x file work under Linux.

What is changed: The files will be created with "LF" for any new clone, existing files will not be changed. About the details, please reference this great article about CRLF and LF: https://www.aleksandrhovhannisyan.com/blog/crlf-vs-lf-normalizing-line-endings-in-git/

Have to say I am kind of confused, the CONTRIBUTING.md seems to be prepared for Linux, but ".x" is using CRLF as line endings, which make it complains "env: node\r: No such file". Note the strange "\r", which is the problem.

We cloud also add such content to .editorconfig to express intension better, I do not add it for now:

[*]
end_of_line = lf

This should not cause any problem in Windows, there is no "bat" or "cmd" file in the repo.

Related issue (if exists)

Types of changes

Not sure, I guess it's "refactoring"?

• Docs change / Dependency upgrade
• Bug fix
• New feature / Improvement
• Refactoring
• Breaking change

Checklist

Does this change need to fill these checkbox?

• I have added changeset via pnpm run changeset.
• I have added tests to cover my changes.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 1ff1087

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[CLAassistant]

All committers have signed the CLA.

[hyf0]

IMO, we should enforce end_of_line = lf rather than auto. By the way, we are going to remove ./x, which causes too many cross-platform problems.

[hyf0]

Could you sign the CLA?

And after discussing with the @web-infra-dev/rspack, we think it's better to enforce the end of line with LF.

[ShuiRuTian]

CLA Signed.

I still keep the change in .gitattributes, because in an editor like VSCode, you need an extension to make the file ".editorconfig" work. Then the change in .gitattributes provide a good default behavior.

[hyf0]

Thanks for your contribution! Learn a lot about the line endings :).