The settings.json file supports validation of settings.

[zhouxinghong]

Feature Description:

Hello everyone!
Please support the validation of the settings in settings.json file so that the settings properties can be correctly and effectively migrated from the settings.json file of VSCode.

Theia 1.53.200
Windows 10

[msujew]

We already support settings.json validation:

@zhouxinghong What exactly are you missing?

[zhouxinghong]

#13993

[zhouxinghong]

If some settings are invalid, then in the Problems panel in VSCode it will tell me that these settings are not recognized. However, in Theia platform, it does not tell me any error information.

Video_2024-09-18_223626.mp4

You should be able to see that I don’t have the C# extension installed, but I have defined the setting properties of the C# extension in settings.json. Theia should tell me that it is not recognized, which is in line with the correct validation logic.

[zhouxinghong]

Next, please see how to verify the settings.json file setting properties in VSCode.

[dhuebner]

@msujew
I think what is missing is maybe a "current installation aware" validation. In @zhouxinghong csharp is a valid Language entry but a corresponding extension is not installed. Maybe a better example is the following:

"[typescript]": {
 "editor.tabSize": 4,
 "editor.defaultFormatter": "invlaid",
},

Compared to the vs-code, in Theia there is no validation warning for "editor.defaultFormatter", also the content assist doesn't provide possible values.