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MergeBot PlasticSCM
0.12Minimum Jenkins requirement: 2.7.3ID: plasticscm-mergebot

This plugin enables DevOps automation features using Plastic SCM's mergebot.

Configuration

Freestyle projects

First of all, create a new freestyle project and select Mergebot Plastic SCM as the Source Code Management option:

The plugin itself doesn't need any specific configuration. All settings and parameters are set through Plastic SCM WebAdmin when you configure your mergebot.

Pipeline projects

If you wish to use the pipeline workflow for the Jenkins part of your DevOps cycle, you have two options (as usual): defining a Pipeline script in the plan configuration or retrieve it from SCM in each build.

Regardless of the option you choose, remember to put the mergebotCheckout() command in your Groovy script when you wish to perform the sources checkout from Plastic SCM.

This is an example of a Pipeline script using the mergebot checkout:

node {
   def mvnHome
   stage('Preparation') { // for display purposes
      // Get code from Plastic SCM as specified in the build parameters
      mergebotCheckout()
      // Get the Maven tool.
      // ** NOTE: This 'M3' Maven tool must be configured
      // **       in the global configuration.           
      mvnHome = tool 'M3'
   }
   stage('Build') {
      // Run the maven build
      if (isUnix()) {
         sh "'${mvnHome}/bin/mvn' -Dmaven.test.failure.ignore clean package"
      } else {
         bat(/"${mvnHome}\bin\mvn" -Dmaven.test.failure.ignore clean package/)
      }
   }
   stage('Results') {
      junit '**/target/surefire-reports/TEST-*.xml'
      archive 'target/*.jar'
   }
}

You can also choose to retrieve the script from the Plastic SCM changeset to build. Set the definition dropdown list in the Pipeline section to "Pipeline script from SCM", and then select "Mergebot Plastic SCM". You can also choose the file path where the Jenkinsfile will be found. The "Lightweight checkout" will only download said file if it's enabled; otherwise, an auxiliary checkout will be performed before the build to retrieve the Jenkinsfile.

Enable remotely triggered builds

To allow the Plastic SCM to trigger builds in your Jenkins plan, be sure to check the "Trigger builds remotely" option in the "Build triggers" section of the plan configuration.

Setup in Plastic SCM

You can configure the Jenkins plug parameters from the WebAdmin. These include creating the Jenkins plug configuration:

And then selecting that new configuration when you create the mergebot configuration:

At this point, Jenkins builds will be automatically triggered by the mergebot. You don't need to worry about this anymore!

Build parameters & environment variables

These are the build parameters set by TrunkBot when it triggers a build. They are injected as environment variables so that the build steps can use them in their processes.

Please note that only PLASTICSCM_MERGEBOT_UPDATE_SPEC is mandatory; the rest depend on the particular implementation of the mergebot. If you are using a custom mergebot you can define your own build parameters.

  • PLASTICSCM_MERGEBOT_UPDATE_SPEC: the target object to checkout. It can be a shelve spec, a branch spec, a label spec or a changeset spec.
    • The plasticscm-mergebot-plugin requires this build parameter
  • PLASTICSCM_MERGEBOT_BRANCH_HEAD_CHANGESET_AUTHOR: the name of the user that created the changeset that is being built.
  • PLASTICSCM_MERGEBOT_BRANCH_HEAD_CHANGESET_NUMBER: the number (also called ChangesetID) of the changeset that is being built.
  • PLASTICSCM_MERGEBOT_BRANCH_HEAD_CHANGESET_GUID: the GUID of the changeset that is being built.
  • PLASTICSCM_MERGEBOT_BRANCH_NAME: the branch name where the changeset being built is located.
  • PLASTICSCM_MERGEBOT_TRUNK_HEAD_CHANGESET_NUMBER: the number of the changeset where the build changeset will be merged if the build is successful.
  • PLASTICSCM_MERGEBOT_TRUNK_HEAD_CHANGESET_GUID: the GUID of the changeset where the build changeset will be merged if the build is successful.
  • PLASTICSCM_MERGEBOT_REPSPEC: the repository where the changeset being built is stored.
  • PLASTICSCM_MERGEBOT_TASK_NUMBER: the issue identifier related to the branch of the changeset being built.


Requirements

The plugin requires that Plastic SCM "cm" command line tool is installed and configured for the jenkins user on the master and slave machines.

Plugin version information

This plugin has been developed by Codice Software S.L., owner of the Plastic SCM product.

Visit us at:

https://www.plasticscm.com

Meet us:

https://www.plasticscm.com/company/team.html

Feel the power of merging branches easier than ever with SemanticMerge:

http://semanticmerge.com/

Change log

Version 0.12 (2018-10-08)

  • We improved how the plugin reports errors in a Pipeline with Lightweight checkout. Before this, if the Jenkinsfile download failed only a 'NULL' message was printed. Now the complete command execution is displayed.
  • Fixed an incompatibility with other plugins if they require the SCM plugin to support the ChangeLogSet.Entry.getAffectedFiles() method.

Version 0.11 (2018-09-28)

  • Add Pipeline support, including lightweight checkout.
  • Ensure environment variables are available for build steps in all platforms.
  • Warning: Make sure the client version installed in your Jenkins machines is 7.0.16.2630 or higher

Version 0.10 (2018-09-06)

  • Initial preview version. Supports only freestyle projects.
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