powershell - ErrorActionPreference=stop stops all scripts stack

Question

Consider the following:

// Calling-Script.ps1
Write-Output "Calling script"
./Failing-Script.ps1
Write-Output "Calling script again"

// Failing-Script.ps1
Write-Output "Failing script"
$ErrorActionPreference="stop"
Copy-Item invalid_file invalid_directory
Write-Output "Failing script again"

// output
Calling script
Failing script

Notice that Calling script again didn't show up. First I thought that somehow the change of ErrorActionPreference in Failing-Script.ps1 affected the one in Calling-Script.ps1, but I checked it and it doesn't:

// Calling-Script.ps1
Write-Output "Calling script"
$ErrorActionPreference
./Failing-Script.ps1
Write-Output "Calling script again"
$ErrorActionPreference

// Failing-Script.ps1
Write-Output "Failing script"
$ErrorActionPreference
$ErrorActionPreference="stop"
#Copy-Item invalid_file invalid_directory

Write-Output "Failing script again"
$ErrorActionPreference

// output
Calling script
Continue
Failing script
Continue
Failing script again
stop
Calling script again
Continue

The question is: Why is the execution of Calling-Script.ps1 stops? Does this make sense? is it documented?

Answer 1

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