Simplify generated launch.json

Hey,

VSCode dev here. This milestone I am looking into simplifing generated launch.json for various extensions Microsoft/vscode#62851

The launch.json that Powershell generates is attached at the end. This is a bit too complex for the avarage user and I suggest to simplify it the following way:

• You are already using a DebugConifugarionProvider for resolving configuration. I suggest to aslo use it for providing debug conifiguration as it should make the following step possible
• DebugConfigurationProvider should use the quickPick to ask the user if he would like to launch or to attach. If he chooses launch I would ask a follow up question if he would like to launch a current file, Current File in Temporary Console, Current File w/Args Prompt or just an interactive powershell session.
• Remove default fields which are not necessery like args, runspaceId
• You are already contributing configuraitonSnippets which is great. However these snippets also need to be simplified. I suggest to remove all attributes that have the default value. Example: stopAtEntry, cwd, args

If you agree with the suggestions I am making here I am also here to help with any potential questions you might have. The changes should not require a lot of work but will simplify the flow a lot imho. It should be much less complex and not too much like a wizard experience

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "PowerShell",
            "request": "launch",
            "name": "PowerShell Launch Current File",
            "script": "${file}",
            "args": [],
            "cwd": "${file}"
        },
        {
            "type": "PowerShell",
            "request": "launch",
            "name": "PowerShell Launch Current File in Temporary Console",
            "script": "${file}",
            "args": [],
            "cwd": "${file}",
            "createTemporaryIntegratedConsole": true
        },
        {
            "type": "PowerShell",
            "request": "launch",
            "name": "PowerShell Launch Current File w/Args Prompt",
            "script": "${file}",
            "args": [
                "${command:SpecifyScriptArgs}"
            ],
            "cwd": "${file}"
        },
        {
            "type": "PowerShell",
            "request": "attach",
            "name": "PowerShell Attach to Host Process",
            "processId": "${command:PickPSHostProcess}",
            "runspaceId": 1
        },
        {
            "type": "PowerShell",
            "request": "launch",
            "name": "PowerShell Interactive Session",
            "cwd": ""
        }
    ]
}

[rkeithhill]

@isidorn I’ve implemented this in PR #2084. Could you give this a look? It has gone through some iterations so look at the latest comments on the PR.

[isidorn]

Great news that you plan to look into this. Yeah this is not really urgent but we just wanted to know that you are on it.

Keeping fields around to advertise them makes perfect sense. But imho only fields which the user change often should be advertised.

As for the quick pick approach: it would appear only when the launch.json is being generated, based on the users choice we would generate a different launch.json and the user would not be asked again. Here’s an example in docker for reference https://github.com/Microsoft/vscode-docker/pull/618