'[ci skip]' feature on github

Jenkinsfile

#!/usr/bin/env groovy

pipeline {
  agent any

  stages {
    stage('Project Build') {
      when { 
          beforeAgent true
          not { changelog '.*\\[ci skip\\].*' }
      }
      stages {
        stage('Prepare version') {
          when { branch 'master' }
          steps {
            echo 'Bump your project version'
            echo 'Commit it with "[ci skip]" string in the commit message'
            echo 'Tag it'
          }
        }
        stage('Build version') {
          steps {
            echo 'Build your project upon this new commit'
          }
        }
        stage('Publish project and version') {
          when { branch 'master' }
          steps {
            echo 'Publish your project'
            echo 'Push your new commit and tag'
          }
        }
      }
    }
  }
}