Extracting values from AnalyzeComponentStore? - powershell

Question

Hello everyone and thanks in advance for the possible answers.
Where I work we have different WS2016 virtual machines and we read that the updates could be a pain due to the very long time they could take and we can't stay a lot with the services down (we have several virtual machines to update soon).
In the same thread we read an advice: cleaning the WinSXS folder could drastically reduce this time.
WS2016 already has this scheduled but it has got a 1 hour timeout so if it takes more than that the process gets killed.
The solution is creating the schedule manually so we made a script for this that checks the current date and the last update date and, if the difference is more than 30 days, it runs the command:
dism.exe /Online /Cleanup-Image /AnalyzeComponentStore
and then the command:
dism.exe /Online /Cleanup-Image /StartComponentCleanup
Now the real question...One of the results of AnalyzeComponentStore is:
Component Store Cleanup Recommended
And the answer could be Yes or No
Is there a way to check if this value is "Yes" (so launch the StartComponentCleanup) or "No" (so exit from the script)?
Thanks again!
#Doug Maurer...this is the result of the AnalyzeComponentStore
PS C:> dism.exe /Online /Cleanup-Image /AnalyzeComponentStore
Deployment Image Servicing and Management tool
Version: 10.0.14393.3750
Image Version: 10.0.14393.3241
[===========================99.7%========================= ]
Component Store (WinSxS) information:
Windows Explorer Reported Size of Component Store : 8.08 GB
Actual Size of Component Store : 7.94 GB
Shared with Windows : 6.12 GB
Backups and Disabled Features : 1.49 GB
Cache and Temporary Data : 323.47 MB
Date of Last Cleanup : 2016-09-12 13:40:35
Number of Reclaimable Packages : 0
Component Store Cleanup Recommended : Yes
The operation completed successfully.
PS C:>

Answer 1

There are several ways to achieve this, I will list two and you can choose the one you like better. Others may offer alternative approaches.
First using Select-String - simply pipe the output into select string
$output = #'
Deployment Image Servicing and Management tool Version: 10.0.14393.3750
Image Version: 10.0.14393.3241
[===========================99.7%========================= ]
Component Store (WinSxS) information:
Windows Explorer Reported Size of Component Store : 8.08 GB
Actual Size of Component Store : 7.94 GB
Shared with Windows : 6.12 GB
Backups and Disabled Features : 1.49 GB
Cache and Temporary Data : 323.47 MB
Date of Last Cleanup : 2016-09-12 13:40:35
Number of Reclaimable Packages : 0
Component Store Cleanup Recommended : Yes
The operation completed successfully.
'#
$output | Select-String "Component Store Cleanup Recommended : (\w*)" | foreach {$_.matches.groups[1].value}
I used the outvariable paremeter of Foreach, you could also just assign normally
$cleanup = $output | Select-String "Component Store Cleanup Recommended : (\w*)" | foreach {$_.matches.groups[1].value}
Second suggestion is to use -Match
$cleanup = if($output -match "Component Store Cleanup Recommended : (\w*)"){$matches[1]}
Both will end up setting $cleanup to the yes/no value you're after.
Get-Variable cleanup
Name Value
---- -----
cleanup {Yes}
Now you can simply check if it's yes and run the cleanup if so.
if($cleanup -eq 'yes'){"run cleanup code"}