Updating $Latest parameter after au_GetLatest function call

[alwaysharsha]

We have a scenario where we download the vs_professional.exe (Visual Studio Professional) To detect the version. We create offline iso so that our installation is consistent. Downloading Visual studio components and iso takes lot of them around 20-30 mins. If there is no version change I can save that time without creating the iso file.

The current flow is au_GetLatest (Download .exe and creates .iso and returns the object including checksum and file path) -> au_SearchReplace -> au_AfterUpdate.

Instead of creating the iso at au_GetLatest if I move to a later stage like au_SearchReplace I would save time when there is no new version. During this step is it recommended to update the $global:Latest parameter with new values and reference them? Is that acceptable solution.

Please let me know your views.

[majkinetor]

You should create iso within au_BeforeUpdate which is exactly there for such scenarios. In that step it is typical to change $Latest, for example people often call here Get-RemoteFiles which internally sets the checksums on it.

Your current solution will probably work but it is a mess and mixes concerns - GetLatest job is only to find latest version and url, not construct thing needed for eventual update. Adding things to SearchReplace might work or not, but it definitely smells bad.

[rismoney]

here is how i used to do it: https://github.com/rismoney/chocolatey-package-recipes/blob/master/vs2017-professional/vs2017-professional/update.ps1

[alwaysharsha]

Thanks @rismoney