Delete Old Azure DevOps Builds (One or more builds associated with the requested pipeline(s) are retained by a release. The pipeline(s) and builds will not be deleted)

stop-retaining-builds.ps1

# https://tenbulls.co.uk/2020/03/25/delete-old-build-definitions-in-azure-devops/
$personalToken = "askjxlkasjxlkasjxsajkxj"
$token = [System.Convert]::ToBase64String([System.Text.Encoding]::ASCII.GetBytes(":$($personalToken)"))
$header = @{authorization = "Basic $token"}
 
$organization = "retracement"
$project = "ACME%20Corp"
 
#all build definitions
$url = "https://dev.azure.com/$organization/$project/_apis/build/definitions?api-version=6.0-preview.7"
$builddefinitions = Invoke-RestMethod -Uri $url -Method Get -ContentType "application/json" -Headers $header
 
$builddefinitions.value | where {$_.name -eq "ARM Templates Build"}|Sort-Object id|ForEach-Object {
Write-Host $_.id $_.name $_.queueStatus
 
#all builds for a definition
$url = "https://dev.azure.com/$organization/$project/_apis/build/builds?definitions=" + $_.id + "&api-version=6.0-preview.5"
$builds = Invoke-RestMethod -Uri $url -Method Get -ContentType "application/json" -Headers $header
 
$builds.value | Sort-Object id|ForEach-Object {
#report on retain status
Write-Host " BuildId" $_.id "- retainedByRelease:" $_.retainedByRelease
 
#api call for a build
$url = "https://dev.azure.com/$organization/$project/_apis/build/builds/" + $_.id + "?api-version=6.0-preview.5"
 
#set retainedByRelease property to false
Invoke-RestMethod -Uri $url -Method Patch -Body (ConvertTo-Json @{"retainedByRelease"='false'}) -ContentType "application/json" -Headers $header
}
Write-Host
}