How to set version of the prerelease NuGet according to the latest released NuGet automatically?

Question

I have two pipelines, release and prerelease.

In release pipeline version set up like this, the counter for the patch and manually set major/minor version:

variables:
  solution: '**/*.sln'
  buildPlatform: 'Any CPU'
  buildConfiguration: 'Release'
  majorVersion: '1'  
  minorVersion: '1'
  patchVersion: $[counter(format('{0}.{1}', variables['majorVersion'], variables['minorVersion']), 0)]
  productVersion: $[format('{0}.{1}.{2}', variables['majorVersion'], variables['minorVersion'], variables['patchVersion'])]

In prerelease pipeline I manual check what is the version for all major, minor and patch from the latest release, I only add Build.BuildNumber in the end to declare it as a prerelease:

variables:
  solution: '**/*.sln'
  buildPlatform: 'Any CPU'
  buildConfiguration: 'Release'
  majorVersion: '1'  
  minorVersion: '1'
  patchVersion: '2' <!-- if the last release patch version was 1, in the next prerelease I need here 2-->
  productVersionBeta: $[format('{0}.{1}.{2}-{3}', variables['majorVersion'], variables['minorVersion'], variables['patchVersion'], variables['Build.BuildNumber'])]

In the end I pack and push NuGet.

What I would like to have in my prerelease pipeline is:

variables:
 solution: '**/*.sln'
  buildPlatform: 'Any CPU'
  buildConfiguration: 'Release'

  majorVersion: $(SOMEHOW_GET_LATEST_MAJOR_RELEASE_VERSION) 
  minorVersion: $(SOMEHOW_GET_LATEST_MINOR_RELEASE_VERSION) 
  patchVersion: $(SOMEHOW_GET_LATEST_PATCH_RELEASE_VERSION) + 1

  productVersionBeta: $[format('{0}.{1}.{2}-{3}', variables['majorVersion'], variables['minorVersion'], variables['patchVersion'], variables['Build.BuildNumber'])]

Is it possible to get the behavior as described with only yaml config because I didn't find anything about it?

If it's not possible to do just through the config then I found this REST API The Artifact Details - Get Package Version. Is there a clean way to implement it inside the pipeline for the same purposes?

Krzysztof Madej Krzysztof Madej · Accepted Answer · 2020-09-01T19:44:18

I think that this is not possible out of the box and you need to use REST API. Please check this example:

variables:
  orgName: 'thecodemanual'
  packageId: '8e0deb67-89bd-499f-ae8c-1d3814be540a'

steps:
    - pwsh: |
       
        $url = "https://feeds.dev.azure.com/$(orgName)/$(System.TeamProject)/_apis/packaging/Feeds/devops-manual/Packages/$(packageId)?api-version=6.0-preview.1"
        $packageInfo = Invoke-RestMethod -Uri $url -Headers @{Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN"}
        Write-Host "Pipeline = $($packageInfo | ConvertTo-Json -Depth 100)"

        $version = $packageInfo.versions[0].version

        Write-Host $version

        $sp = $version.Split(".")

        echo $sp

        $majorVersion = $sp[0]
        $minorVersion = $sp[1]
        $patchVersion = [int]$sp[2] + 1
        $productVersionBeta = “$majorVersion.$minorVersion.$patchVersion-$(Build.BuildNumber)”

        Write-Host "##vso[task.setvariable variable=packageVersion]$version"
        Write-Host "##vso[task.setvariable variable=majorVersion]$majorVersion"
        Write-Host "##vso[task.setvariable variable=minorVersion]$minorVersion"
        Write-Host "##vso[task.setvariable variable=patchVersion]$patchVersion"
        Write-Host "##vso[task.setvariable variable=productVersionBeta]$productVersionBeta"
      name: initial
    - pwsh: |
        Write-Host 'packageVersion: $(packageVersion)'
        Write-Host 'majorVersion: $(majorVersion)'
        Write-Host 'minorVersion: $(minorVersion)'
        Write-Host 'patchVersion: $(patchVersion)'
        Write-Host 'productVersionBeta: $(productVersionBeta)'

Latest version of my package (I got packageId from this endpoint https://feeds.dev.azure.com/{{organization}}/{{project}}/_apis/packaging/Feeds/devops-manual/Packages?api-version=6.0-preview.1) is 2.1.2 and with above pipeline I get these values:

packageVersion: 2.1.2
majorVersion: 2
minorVersion: 1
patchVersion: 3
productVersionBeta: 2.1.3-20200901.6

How to set version of the prerelease NuGet according to the latest released NuGet automatically?

2 Answers