Move to .gitattributes

[joaomoreno]

Many thanks to @sharwell for originally pushing for this in #28945

• Make sure tests work
• Push .gitattributes file
• Publish vscode team disclaimer
  • https://stackoverflow.com/a/15646791/261019
  • Talk about core.safecrlf
• Update contribution docs about core.safecrlf

[joaomoreno]

@Microsoft/vscode

I have introduced a .gitattributes file. This means we no longer have to (or even should) configure the autocrlf and safecrlf git settings. We used to recommend Windows users to use core.autocrlf=false and core.safecrlf=true. You can now remove those customisations.

What should I do?

Regardless of your platform, you should pull and re-checkout the entire vscode repository. First, make sure you have a clean working directory: no changes! Then:

git pull
git rm --cached -r .
git reset --hard