Azure Pipeline - Publish Maven Artifacts Without Comitting to Repository

Question

New to Azure in general so sorry if my question isn't as concise as it should be.

What I'm trying to do: When someone pushes to master I want the pipeline to bump the project version and release it as an artifact that is available in the Artifacts tab. This shouldn't create any additional commits.

What I've tried: To verify that my local connection to Artifacts was working I tried mvn deploy which worked fine but it doesn't handle version bumping automatically, so instead I tried switching over to

mvn -B release:prepare release:perform

As it does take care of bumping but this creates other issues as it commits two additional times to git instead of amending itself onto the head and I need to tinker with soft resets and force push to get it correct. Also not sure if it does release to Artifacts as I had issues getting git credentials working...

Is there a way for the pipeline to look at what Artifacts has already been released and just bump based on that so it doesn't have to commit anything to the repository?

Answer 1

Okay, so after a lot of days I finally got it workig. Releasing artifacts without committing code to repo using organization feeds

trigger:
  - main

pr: none

pool:
  vmImage: ubuntu-latest

variables:
  - name: artifactVersion
  - name: organization
    value: '<organization>'
  - name: feedName
    value: '<feedName>'

steps:
  - task: PowerShell@2
    displayName: Fetching latest version of artifact
    inputs:
      targetType: 'inline'
      script: |
        
        # Get list over packages
        $url = 'https://feeds.dev.azure.com/$(organization)/_apis/packaging/Feeds/$(feedName)/packages?api-version=6.0-preview.1'
        $pipeline = Invoke-RestMethod -Uri $url -Headers @{Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN"}

        # Find our artifact in the feed over all artifacts
        $packageName = echo '${project.groupId}:${project.artifactId}' | mvn -N -q -DforceStdout help:evaluate
        echo "Looking for artifact versions for packageName: $packageName"
        $packageId = ''
        Foreach ($package IN $pipeline.value) {
          if($package.name -eq $packageName) {
            $packageId = $package.id
          }
        }
        if($packageId -eq '') {
          echo "No artifact found, assuming this is first release"
          $artifactVersion = 1
        } else {
          $url = 'https://feeds.dev.azure.com/$(organization)/_apis/packaging/Feeds/$(feedName)/Packages/' + $packageId + '/versions?api-version=6.0-preview.1'
          $pipeline = Invoke-RestMethod -Uri $url -Headers @{Authorization = "Bearer $env:SYSTEM_ACCESSTOKEN"}
        
          # Find latest version of the artifact
          Foreach ($package IN $pipeline.value) {
            if($package.isLatest) {
              $artifactVersion = [int]$package.version+1
            }
          }
        }
        Write-Host "##vso[task.setvariable variable=artifactVersion]$artifactVersion"
        echo "Preparing release for artifaction version: $artifactVersion"
    env:
      SYSTEM_ACCESSTOKEN: $(System.AccessToken)
  - task: MavenAuthenticate@0
    inputs:
      artifactsFeeds: '$(feedName)'
  - task: PowerShell@2
    displayName: Preparing artifact
    inputs:
      targetType: 'inline'
      script: |

        echo "Artifact version to be released: $(artifactVersion)"
        $userNameOfHead = git log -1 --pretty=format:'%an'
        $userEmailOfHead = git log -1 --pretty=format:'%ae'
        git config --global user.email "$userNameOfHead"
        git config --global user.name "$userEmailOfHead"

        mvn -B -DreleaseVersion="$(artifactVersion)" release:prepare release:perform

pom.xml changes needed:

...
<plugin>
   <groupId>org.apache.maven.plugins</groupId>                
   <artifactId>maven-release-plugin</artifactId>
   <version>2.5.3</version>
   <configuration>
      <pushChanges>false</pushChanges>
      <localCheckout>true</localCheckout>
   </configuration>
</plugin>
...
<distributionManagement>
   <repository>
      <id><id></id>
      <url>https://pkgs.dev.azure.com/<organization>/_packaging/<feedName>/maven/v1</url>
   </repository>
</distributionManagement>

<scm>
   <developerConnection>
      scm:git:git@github.com:<repo>
   </developerConnection>
</scm>
...