Check our other helpful areas that might answer your question

I have my installer project in its own repo as I will be bringing in the artifacts/assemblies from multiple other pipelines. The pipeline will handle building the file/folder structure that I want the installer to install.

When I'm working on the installer project locally, I have an example folder of these assemblies in C:\InstalleFiles\ProjectName.
When I build it in the pipeline that folder isn't going to exist and I want it to be based on the System.ArtifactsDirectory that AzureDO downloads the pipeline artifacts into by default.

One of the files, the main EXE, needs to be used to set the version as well as used as the assembly for a Windows Service.

There's a few different threads on this in the forum but most of them are over a decade old and reference using cmdline parameters instead of the Powershell automation shown in the AzureDO tutorials.

I tried using a PowerShell script to modify the AIP file to update the caphyon.advinst.msicomp.SynchronizedFolderComponent component's SourcePath. That broke the versioning:
"The source file "D:\InstallerFiles\ProjectName\ProjectName.exe" used for value of property "ProductVersion" is missing
from disk. Create it on disk or change the property's options."

Maybe I just need to keep hacking away at the AIP file but thought I'd ask here if there was a 'better' way to do this?

FWIW: I was able to get it to 'work' by writing a Powershell script to grab the sourcepath element from the SynchronizedFolderComponent and use that to replace all the paths in the MsiFilesComponent element.

That got it to build but that's not truly what I'm after, it doesn't appear to be truly syncing by adding/removing files that it finds in the folder.

Hello Bryan and welcome to our forums,

Not quite sure I fully grasp your scenario here.

If I understand this correctly, are you trying to enable Synchronization between a folder from your project and a "folder" from Azure DevOps?

If so, here's a PowerShell snippet that can help you with that:
Upon running the above, I checked the built MSI and it did the synchronization just fine:

The above is the "File" table for the downloaded MSI.

Hope this helps!

Best regards,
Catalin

Thanks for the reply Catalin, that's exactly what I was looking for.

I kept looking in the IFolder or IFile components, totally missed PredefinedFolders.ApplicationFolder.

For anyone who sees this later, you'll probably want to change the output folder as well which can be done with:
$project.BuildComponent.SelectedBuild.OutputFolder = $newOutputFolder

Putting it all together then, here's a small script to modify the input (sync folder) and the output:

You are always welcome, Bryan!

Glad I was able to assist.

And thank you for sharing your script with us. I'm sure other customers facing a similar scenario will find this useful.

Best regards,
Catalin