extra line after submitting command in VS Code terminal

[msftrncs]

Environment data

PS version: 7.0.0-preview.3
PSReadline version: 2.0.0-beta4
os: 10.0.18975.1000 (WinBuild.160101.0800)
PS file version: 7.0.0.0
BufferWidth: 174
BufferHeight: 25

This is actually a build of PSReadLine using PR #979

Steps to reproduce

Using PowerShell in VS Code's terminal (currently 1.38.1 Stable and Nightly) enter commands until the buffer (screen) is full. At that time, every command entered seems to receive a blank line immediately after the last line of the command, before the results or next prompt appears. This can be demonstrated with a blank command entry.

This does not happen with the normal Windows console, nor does this happen if I switch to CMD in a PowerShell session, inside VS Code's terminal.

[msftrncs]

I forgot two details:

• this only happens in the PowerShell Integrated Console inside VS Code (VSCode-PowerShell extension)
• PSReadLine cannot be removed from the PowerShell Integrated Console, so I haven't been able to determine that this issue isn't actually from the integrated console or its implementation of PSReadLine.

So its possible this issue belongs in the VSCode-PowerShell repository.

[SeeminglyScience]

• PSReadLine cannot be removed from the PowerShell Integrated Console, so I haven't been able to determine that this issue isn't actually from the integrated console or its implementation of PSReadLine.

You should (hopefully) be able to set "powershell.developer.featureFlags": [] to disable it.

So its possible this issue belongs in the VSCode-PowerShell repository.

Yeah it does. When I was integrating PSRL I was a bit aggressive in fixing an issue where prompts stayed on the same line and forgot to go back and fix it. Should be just removing an extra WriteOutput line in the host somewhere.

[msftrncs]

Thanks, @SeeminglyScience, I was going to doublecheck the method to the powershell.developer.featureFlags, and sure enough that indicates that without the integration of PSReadLine in the integrated console, the double line feeds stop.

I'll close this here and reopen one in VSCode-PowerShell.