Write-Host not working in ScriptBlock

[howardthu]

It doesn't do anything. Write-Host does nothing when enclosed in the ScriptBlock. Echo works, but it's not the same.

[proxb]

Yea, echo is an alias for Write-Output. Can you provide an example of the code you are trying to use? Are you expecting the write-host stream to be displayed when using receive-rsjob? There is a pull request currently submitted that should fix that issue. I just need to review it and merge it.

[howardthu]

echo is the alias of write-output. Write-Host has options such as -NoNewline, -ForegroundColor. I can provide an example.

Start-RSJob -ScriptBlock {
Write-Host "test"
echo "test2"
}

Get-RSJob | Wait-RSJob
Get-RSJob | Receive-RSJob

In this example, only "test2" gets outputted.

Also, on an unrelated note, can you give me an example on how to call a function (declared outside the scriptblock) from within the scriptblock? I tried using a variable but it didn't seem to work. Thanks

[proxb]

That is expected behavior as of right now. You can track the stream in the rsjob object but as I mentioned above, there is a pull request that I need to review which should add this capability. For the function outside of the rsjob, use the -FunctionsToLoad parameter and supply the function name. An example can be found here: http://blogs.technet.com/b/heyscriptingguy/archive/2015/11/29/weekend-scripter-a-look-at-the-poshrsjob-module.aspx

[proxb]

Duplicate of #20

[MarkKharitonov]

It still does not work.

Receive-RSJob -Job (Wait-RSJob -Job (Start-RSJob -ScriptBlock { Write-Host "hello" }))

prints nothing.

Invoke-Parallel, on the other hand, works correctly:

0 | Invoke-Parallel { Write-Host $_ }

outputs 0.

[MVKozlov]

on PS v5.0+ Host stream converted into Information stream
but PoshRSJob still does not support Information stream. (#129)

PS C:\> Receive-RSJob -Job (Wait-RSJob -Job (Start-RSJob -ScriptBlock { Write-Host "hello" }))
PS C:\> $j = Get-RSJob
PS C:\> $j.InnerJob.Streams
Error       : {}
Progress    : {}
Verbose     : {}
Debug       : {}
Warning     : {}
Information : {hello}