prepdocs.ps1 should be updated to use the Invoke-ExternalCommand method

[jongio]

This allows the code to execute outside of user profile settings:

See example here: https://github.com/Azure-Samples/azure-search-openai-demo-csharp/blob/main/scripts/prepdocs.ps1

[github-actions]

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[brunoborges]

@dantelmomsft any thoughts on this one?

[dantelmomsft]

I've tried to update the script using the Invoke-ExternalCommand function definition as provided in the example ( see attached file prepdocs.md)

. It didn't worked as expected:

1. 'log' in STDOUT or STDERR is omitted. so as user not sure what's going on.
2. it fails to run mvn command even if it's available. Same command works when using "Start-Process". See error below:
   

@jongio any idea?

[brunoborges]

@jongio ping