Adopt formatOnSave changes

[jrieken]

Since version 1.6 VS Code has a format on save option. It works by calling the registered formatting provider for the language in question and most importantly it happens before the file is saved to disk, not causing additional fs writes and event cascades.

Please adopt this code code by either removing it and trusting the new editor.formatOnSave-setting or by using the new onWillSaveTextDocument-event.

See https://code.visualstudio.com/updates#_format-on-save, microsoft/vscode#12449, and microsoft/vscode#239

[taichi]

thanks for your information, i'll try it.

[jrieken]

Cool - let me know if you need help or support

[taichi]

@jrieken done it #13
do you have some advice?

[jrieken]

Looks proper - tho note that there is the global editor.formatOnSave-setting. So when both settings are true (the former and the one from this extension) you will be called twice. That you can prevent from not listening on any save event anymore (VS Code will then call your extension)