Can I mass-update VSTS build pipeline definitions? - migration

Question

I'm in the process of migrating from an on-premise TFS instance to VSTS. I have a lot of build pipelines (vNext build definitions) that were migrated to VSTS, but now I have to update them all to use a specific Agent.
There is no option available in the UI nor in the commandline client.
Am I missing an option available to me so I can update them all at once?

Answer 1

Based on the migration work I did with Manuel (referred to the post Jesse mentions), I have made some scripts available that get the TFS queues and then use that for updating the VSTS build definitions.
Read-QueuesFromTfs.ps1
Repair-BuildDefinitions.ps1
Both scripts require a parameters PersonalAccesToken - One is a PAT for the VSTS account you are targeting and one for targeting the TFS environment.
First script helps you get a queues.json file that holds all TFS Queues. Second script iterates the VSTS projects you are targeting for updating the build definitions. Scripts should be quite self-explanatory.
# Get all queues and based on previous names get the id's
(Invoke-RestMethod `
-Uri "https://$account.visualstudio.com/$_/_apis/distributedtask/queues" `
-Headers #{Authorization = "Basic $auth"; Accept = "application/json; api-version=3.2-preview" } `
-Method Get `
-ContentType "application/json" -Verbose).value | % { $vstsqueues[$_.name] = $_.id }
# get all the builds
$builds = (Invoke-RestMethod `
-Uri "https://$account.visualstudio.com/$_/_apis/build/definitions" `
-Headers #{Authorization = "Basic $auth"; Accept = "application/json; api-version=4.1-preview.6" } `
-Method Get `
-ContentType "application/json").value
# get the full build definition
$build = Invoke-RestMethod `
-Uri $_.url `
-Headers #{Authorization = "Basic $auth"; Accept = "application/json; api-version=4.1-preview.6" } `
-Method Get `
-ContentType "application/json"
# get queue
$queuename = $tfsqueues[$_.queue.id]
Write-Output " queue name: $queuename"
# update build
$build.queue = #{ id = $vstsqueues[$queuename] }
# post changes
Invoke-RestMethod `
-Uri $_.url `
-Headers #{Authorization = "Basic $auth"; Accept = "application/json; api-version=4.1-preview.6" } `
-Method Put `
-ContentType "application/json" `
-Body ($build | ConvertTo-Json -Depth 100 -Compress) | Out-Null
}
}
Described in this file. https://github.com/JasperGilhuis/VSTS-RestAPI/blob/master/README.md#update-vsts-build-definitions-based-on-tfs-queues
Look that the Builds folder in the repository https://github.com/JasperGilhuis/VSTS-RestAPI/tree/master/Builds