History through up and down arrow in Debugger is not available

[Stephanevg]

Hi guys, I hope everybody is well ^^

For any Powershell script that I open in VScode, when I set a break point, and launch the script, VS code will stop at that breakpoint.

Once stopped, I then have the possibility to launch several commands in the interactive shell beneath the scripting pane. I can have a look into variables, launch various powershell commands, my loaded functions without any issue.

If I want to recall a command that I typed earlier, by pressing the up or down arrow nothing happens. I need to retype the complete command if I want to call the same command twice.

Reproduction Steps:

1. Create a script called Test.ps1

2. Add a few random commands in it:
   Get-Command
   Get-Random
   Get-Module
   Get-Service

3. Set a break point on Get-Random for example, and call the script

4. In the debugger type get-process, get-history,get-random

5. Try to use the up or down arrow to get to the previous typed commands (this is what is not working).

VScode version:

PSExention version --> 1.4.1

System Details

• Operating system name and version: seen on Windows 10 (psv 5.0) and Windows Server 2012 R2 (ps v 5.1)
• VS Code version: 5.0 and 5.1
• PowerShell extension version:
• Output from $PSVersionTable:
  See below

$pseditor.EditorServicesVersion

1.14.1
2648980a697a4c8fb5777dcfb2ab110cec8a2f58

code --list-extensions --show-versions
[email protected]

$PSVersionTable
$PsVersionTable:


Name                           Value                                                                                                                                                                              
----                           -----                                                                                                                                                                              
PSVersion                      5.1.14407.1003                                                                                                                                                                     
PSEdition                      Desktop                                                                                                                                                                            
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}                                                                                                                                                            
BuildVersion                   10.0.14407.1003                                                                                                                                                                    
CLRVersion                     4.0.30319.42000                                                                                                                                                                    
WSManStackVersion              3.0                                                                                                                                                                                
PSRemotingProtocolVersion      2.3                                                                                                                                                                                
SerializationVersion           1.1.0.1                                                                                                                                                                            


(But this behaviour is identicall on a machine with ps 5.0)

Thanks in advance guys! :)

[rkeithhill]

This should be coming with the introduction of PSReadline support. Tracked in issue #535.

[Stephanevg]

Ok great! Looking forward to it!

[daviwil]

Yep, closing this issue in favor of the other one.

[Stephanevg]

Hi, I would like to reopen this issue, as I have the feeling that the fix you are preparing (thread here #535 and #1310 ) will come only with the drop of support of PS 3 and 4.

As a matter a fact, this is the only (but the most painfull) issue I have with Vscode, and I would really like to have this one solved.

[TylerLeonhardt]

@Stephanevg, this was the intended plan since PSReadLine will require dropping 3 and 4. Is this not suitable for you?

[Stephanevg]

@tylerl0706 This means that VScode must run a Ps versions 5 and above, right? If that is the case, then I am ok with this resolution.
If this means that scripts that targets PSversion 3/4 (using the #require statement for example) won't be able to use this fix, then no.

[joeyaiello]

@Stephanevg: if you have Windows PS 5 installed on your machine, #require -version with 3.0 or 4.0 will run in Windows PS 5, as it's impossible to have any combination of 3, 4, and 5 installed simultaneously on the same machine. (The exception here is Windows PowerShell 2.0 which can be installed side-by-side with 3, 4, or 5 because it uses a distinct .NET Framework from the others.) Many folks erroneously believe that powershell.exe -version 3 will open 3.0 on their 5.0 machine, but it silently just launches 5.

So in short: if you don't have 5 installed on your machine, this will continue to fail after we move to PSReadline. If you do have 5 installed, #require will have no effect (it's just there to block executions on machines where 2.0 is the highest available version).

[rjmholt]

I've built a new preview of the v2 extension that you can find here: #535 (comment).

Also, on the #require point, it's worth noting that -Version refers to the minimum version of PowerShell required.