Introduce .gitignore

[BKPepe]

This PR adds file .gitignore to this repository.

[Ansuel]

maybe also .patch in the root directory?

[mhei]

I'm a little bit unsure, whether this is really required. Just for reference:
https://blog.martinhujer.cz/dont-put-idea-vscode-directories-to-projects-gitignore/

[BKPepe]

maybe also .patch in the root directory?

I'm a little bit unsure, whether this is really required. Just for reference: https://blog.martinhujer.cz/dont-put-idea-vscode-directories-to-projects-gitignore/

Well, the headline could be somehow true, I am not saying that it is wrong, but even there is some discussion in comments below the article Anyway, .vscode is also included in OpenWrt main repository. It was added by openwrt/openwrt@3c3a96d.

Also, it was requested to have .gitignore with .DS_Store in this comment: #23976 (comment)

[mhei]

Yes, this is a controversial topic. There are arguments for and against. Personally, I don't think it's necessary, but I'm not totally against it either.

[Ansuel]

@mhei my 2 cent are that .vscode might be handy for single project repository where it would be beneficial to have vscode or editors in general setup for the project.

For this specific case where these are a sum of many Makefile and project... I can't find a way where .vscode would be beneficial... With all the variety of code and style we have I think there isn't a common option for everyone.

[mhei]

I'm fine with this PR.