TL;DR

Modify the Write-Host wrapper in scripts/install.ps1 to prevent it from emitting output that interferes with the return value of Main.

Guidance

• Review the implementation of the custom Write-Host wrapper in scripts/install.ps1 to ensure it does not produce any output that could be captured by the caller.
• Verify that the wrapper only has side effects and does not contribute to the pipeline output.
• Check the test case install.ps1 failure handling in test/scripts/install-ps1.test.ts to understand how the Write-Host wrapper's output is being captured and affecting the return value of Main.
• Consider using a different output stream, such as the verbose or debug stream, for the Write-Host wrapper to prevent it from interfering with the return value.

Example

# Instead of using Write-Host, consider using Write-Verbose
Write-Verbose "Message" -Verbose

Notes

The solution may require changes to the Write-Host wrapper implementation and potentially the test case to ensure that the wrapper's output is properly handled.

Recommendation

Apply workaround: Modify the Write-Host wrapper to use a different output stream, such as the verbose stream, to prevent it from interfering with the return value of Main. This approach allows for a targeted fix without requiring significant changes to the existing codebase.