[ruby] Add indentationRules

[factormystic]

• VSCode Version: 1.4.0
• OS Version: Windows 10 v1511 b10586.494

Steps to Reproduce:

1. Open a ruby file
2. Define a new method at normal indent level (eg, type def whatever
3. Press enter to start a new line at the method body indent level
4. Type end to end the method block

I expected the text end to be auto-de-indented 1 level, so it matches def whatever. What actually happened is nothing at all.

That's the request. The question is, is this expected to be core behavior, or something I need an extension for since it's language specific?

[factormystic]

FYI this is real annoying when combined with #10197. I basically have to hit backspace n times instead of 0 times (this issue) or 1 times (related issue, if pre-indent whitespace was selectable.

[aeschli]

As auto indenting in ruby is a bit more tricky that needs to be done in code, using
indentationRules in the LanguageConfiguration.
See https://github.com/Microsoft/vscode/blob/master/src/vs/vscode.d.ts#L2530.

I see that the vscode-ruby does it.
Have you tried that?

I'm happy to take a pull request if you want that in the default-ruby plugin.

[factormystic]

I do have that ruby extension installed. I also uninstalled it to confirm it wasn't an extension problem.

[pharmmd-rich]

+1

Any luck with this? Makes it rather annoying to use VS Code for Ruby or Rails projects. Please fix end!

[rebornix]

Dup of #2272 . Let's track it there. This sprint we'll at least indent end correctly when you press enter.