PSReadLine
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Failed to call `GetHistoryItems`
Prerequisites
- [X] Write a descriptive title.
- [X] Make sure you are able to repro it on the latest released version
- [X] Search the existing issues, especially the pinned issues.
Exception report
Exception calling "GetHistoryItems" with "0" argument(s): "Object reference not set to an instance of an object."
At C:\Users\Sergey.Simonchik\sandbox\init.ps1:3 char:3
+ $HistoryItems=[Microsoft.PowerShell.PSConsoleReadLine]::GetHistoryI ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodInvocationException
+ FullyQualifiedErrorId : NullReferenceException
Screenshot
Environment data
PS Version: 7.4.1
PS HostName: ConsoleHost (Windows Terminal)
PSReadLine Version: 2.3.4
PSReadLine EditMode: Windows
OS: 10.0.22621.1 (WinBuild.160101.0800)
BufferWidth: 163
BufferHeight: 45
Steps to reproduce
I would like to run a small init script before a PowerShell session starts to access PSReadLine command history there. Unfortunately, [Microsoft.PowerShell.PSConsoleReadLine]::GetHistoryItems() fails with the error.
pwsh.exe -NoExit -ExecutionPolicy Bypass -File .\init.ps1
#init.ps1
if (Get-Module -Name PSReadLine) {
$HistoryItems=[Microsoft.PowerShell.PSConsoleReadLine]::GetHistoryItems()
if ($HistoryItems -eq $null) {
[Console]::WriteLine("got null")
}
else {
[Console]::WriteLine("got not-null")
}
}
Expected behavior
History items can be accessed successfully, no exception happens and not null is printed to the console.
Actual behavior
Windows PowerShell
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PS C:\Users\Sergey.Simonchik> cd .\sandbox\
PS C:\Users\Sergey.Simonchik\sandbox> pwsh.exe -NoExit -ExecutionPolicy Bypass -File .\init.ps1
PowerShell 7.4.1
MethodInvocationException: C:\Users\Sergey.Simonchik\sandbox\init.ps1:3
Line |
3 | $HistoryItems=[Microsoft.PowerShell.PSConsoleReadLine]::GetHistoryI …
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| Exception calling "GetHistoryItems" with "0" argument(s): "Object reference not set to an instance of an object."
got null
PS C:\Users\Sergey.Simonchik\sandbox>
Also, asked here: https://github.com/PowerShell/PSReadLine/discussions/3930
Please note that if I run the same script inside PowerShell session, GetHistoryItems() works fine. But I need to run it in the init.ps1 script passed as described above. Please let me know if there is a workaround. Thanks!