Public API for controlling the EOL style

[mrozekma]

For cross-platform reasons (see FirebaseExtended/firepad#315), I need to force the editor to use a particular line ending. I see setEOL/pushEOL on the model, but that seems to change the current contents of the editor but not set the EOL permanently -- if the editor is cleared or replaced with other text, the set EOL can be lost.

From poking around the code, I found that the default EOL comes from SimpleResourcePropertiesService.getEOL, and varies by platform, but first it tries to read the files.eol configuration value. Thus I can fix the problem by setting that value:

import { StaticServices } from 'monaco-editor/esm/vs/editor/standalone/browser/standaloneServices';
StaticServices.configurationService.get().updateValue('files.eol', '\r\n');

This works, but I don't think this is supposed to be a public interface. Can some better way to enforce a particular line ending be added to the editor or text model?

[brijeshb42]

What we used as a solution was to replace all setValue calls with -

function newSetValue(model, newValue) {
  model.applyEdits([{ text: newValue, range: model.getFullModelRange()}]);
}

[alexdima]

Yes, setValue calls will reset the EOL to the new content passed in. The solution is to change the EOL after calling setValue or to use applyEdits to change the contents.