B4J Question [SOLVED] Can't execute/return output from Powershell

[valentino s]

Solved, see n. 3


Hi all,
I want to get output from powershell. I use the Erel's snippet.
It arrives to log "ok3", but never to "ok4".

In CLI powershell -Command Get-Command -name *Get-app* works.

Any idea about my error ?

Here the code

'Non-UI application (console / server application)
#Region Project Attributes
    #CommandLineArgs:
    #MergeLibraries: True
#End Region

Sub Process_Globals
 
End Sub

Sub AppStart (Args() As String)
    Log("Hello world!!!")
    Dim lista As String
    PowerShellScript("Get-Command -name *Get-app*")
    Log(lista)
End Sub



Public Sub PowerShellScript(s As String) As ResumableSub
    Log("OK2")

    s = s.Replace(CRLF, ";").Replace("""", "'")
    Dim shl As Shell
    shl.InitializeDoNotHandleQuotes("shl", "powershell.exe", Array("-Command", s))
    shl.Run(-1)
    Log("OK3")
    Wait For shl_ProcessCompleted (Success As Boolean, ExitCode As Int, StdOut As String, StdErr As String)
    Log("OK4")

    Dim res As ShellSyncResult
    res.ExitCode = ExitCode
    res.StdErr = StdErr
    res.StdOut = StdOut
    res.Success = Success
    If StdErr <> "" Then
        Log(StdErr)
        If ExitCode = 0 Then res.ExitCode = 1
    End If
    Log("OK5")
    Log (res)
    Return res
End Sub

 

[PaulMeuris]

All you need to do is tell the application where the output should go:

    PowerShellScript("Get-Command -name *Get-app* > e:\_temp\test_output.txt")

Note: replace the path with your situation.

 

[valentino s]

All you need to do is tell the application where the output should go:

    PowerShellScript("Get-Command -name *Get-app* > e:\_temp\test_output.txt")

Note: replace the path with your situation.

First of all, thanks !
The output to a file works. It's created with the datas I need.
I thought it can works without creating a file. ... and indeed, it works without a temp .txt file, read later.

However the script does not arrive to OK4; "Wait For shl_ProcessCompleted " doesn't proceed.
I'm looking for a solution about the waiting function.

SOLVED:
StartMessageLoop 'need to call this as this is a console app.

[CODE lang="b4x" title="b4j"]'Non-UI application (console / server application)
#Region Project Attributes
#CommandLineArgs:
#MergeLibraries: True
#End Region

Sub Process_Globals
Private shl As Shell
End Sub

Sub AppStart (Args() As String)
Log("Hello world!!!")
Dim lista As String
'PowerShellScript("Get-Command -name *Get-app* > c:\temp\test_output.txt")
PowerShellScript("Get-Command -name *Get-app*")
Log(lista)
End Sub



Public Sub PowerShellScript(s As String) As ResumableSub
Log("OK2")

s = s.Replace(CRLF, ";").Replace("""", "'")
Dim shl As Shell
shl.InitializeDoNotHandleQuotes("shl", "powershell.exe", Array("-Command", s))
shl.Run(-1)
StartMessageLoop 'need to call this as this is a console app.

End Sub

Sub shl_ProcessCompleted(Success As Boolean, ExitCode As Int, StdOut As String, StdErr As String)
If Success And ExitCode = 0 Then
Log("Success")
Log(StdOut)
Else
Log("Error: " & StdErr)
End If
ExitApplication
End Sub[/CODE]