Call generator on model save

[Guite]

Hello,

is there a LSP interface where a generator can be called automatically as soon as a source model is saved in the editor? This would perfectly complete the replacement of the old Xtext-based DSL's behavior.

Thanks for your assistance.

[msujew]

Hey @Guite,

you can add a listener to the TextDocuments#onDidSave service of the language server:

services.shared.workspace.TextDocuments.onDidSave((event) => {
  // `event.document.uri` contains the uri of the saved document
});

Note that in order to fire this event, you need to adjust the capabilities of the language server. You need to create an override of the LanguageServer service like this:

export class CustomLanguageServer extends DefaultLanguageServer {
  protected override buildInitializeResult(params: InitializeParams): InitializeResult {
     const result = super.buildInitializeResult(params);
     result.capabilities.textDocumentSync = {
       save: true,
       change: TextDocumentSyncKind.Incremental
     };
     return result;
  }
}

We have an open issue to make this a bit easier: #1272

[Guite]

Thank you @msujew - I will give this a try.

[Guite]

Works like a charm 👍