Question:
If I have a .ps1 file with the following functions
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function SomeFunction {} function AnotherFunction {} |
How can I get a list of all those functions and invoke them?
I’d like to do something like this:
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$functionsFromFile = Get-ListOfFunctions -Path 'C:\someScript.ps1' foreach($function in $functionsFromFile) { $function.Run() #SomeFunction and AnotherFunction execute } |
Answer:
You could use the Get-ChildItem to retrieve all functions and store them into a variable. Then load the script into to runspace and retrieve all functions again and use the Where-Object cmdlet to filter all new functions by excluding all previously retrieved functions. Finally iterate over all new functions and invoke them:
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$currentFunctions = Get-ChildItem function: # dot source your script to load it to the current runspace . "C:\someScript.ps1" $scriptFunctions = Get-ChildItem function: | Where-Object { $currentFunctions -notcontains $_ } $scriptFunctions | ForEach-Object { & $_.ScriptBlock } |