Powershell: Console window remains open when VSCode started from PowerShell

[rjmholt]

Tracked in VSCode as https://github.com/microsoft/vscode/issues/50308.

Steps to reproduce

(On Windows)

• Open VSCode with code .
• exit PowerShell

Expected behavior

• PowerShell console window closes
• VSCode stays open

Actual behavior

• PowerShell window remains open
• VSCode remains open
• When VSCode window is closed, the PowerShell window is closed
• If PowerShell runs code but does not open a new window (because one for the directory is already open) the issue does not occur

Environment data

Name                           Value
----                           -----
PSVersion                      7.0.0-rc.1
PSEdition                      Core
GitCommitId                    7.0.0-rc.1
OS                             Microsoft Windows 10.0.19535
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[DHowett-MSFT]

This is microsoft/vscode#66750.

[iSazonov]

PowerShell try to detect that application is GUI then run it async. Otherwise it run the application as console application in sync.

[iSazonov]

See #9970 for reference on IsWindowsApplication()

[DHowett-MSFT]

There's nothing PowerShell can do to prevent this. VSCode (<=1.41? to be confirmed) _re-attaches to the console handle it receives from its parent_. In so doing, it prevents the console from being closed when PowerShell exits because there's still one application attached to it.

[msftbot[bot]]

This issue has been marked as external and has not had any activity for 1 day. It has been be closed for housekeeping purposes.