Share you custom transformers here!

[ethanis]

Have you written your own custom transformers to extend GitHub Actions Importer's functionality? If so, we want to hear from you! Please share the custom transformers you've used in this discussion, if the code is free to share, so that others may learn from you 🧑‍🎓

[sukumarp2022]

There were plugins information in Jenkins job's config.xml file. We wanted to ignore some of those plugins when converting Jenkins pipelines to gh actions. This is how we did it.

transform "jenkins.plugins.hipchat.HipChatNotifier", "org.jenkinsci.plugins.buildnamesetter.BuildNameSetter", "org.jenkinsci.plugins.builduser.BuildUser", "com.cloudbees.jenkins.GitHubSetCommitStatusBuilder", "org.jenkinsci.plugins.github.status.GitHubCommitStatusSetter", "org.jvnet.hudson.plugins.SbtPluginBuilder", "com.github.terma.jenkins.githubprcoveragestatus.CompareCoverageAction", "org.jenkinsci.plugins.github.status.GitHubCommitStatusSetter", "hudson.plugins.timestamper.TimestamperBuildWrapper", "hudson.plugins.ansicolor.AnsiColorBuildWrapper", "hudson.plugins.gradle.BuildScanBuildWrapper" do
  nil
end

---

Other plugins conversions

transform "com.cloudbees.dockerpublish.DockerBuilder" do |item|
  image_url = item["registry"]["url"]
  if image_url.is_a?(String)
    image_url = image_url.strip
    image_url = image_url.delete_prefix("https://")
  end
  repo_name = item["repoName"]
  if repo_name.is_a?(String)
    repo_name = repo_name.strip
    image_url = image_url + "/" + repo_name
  end
  dockerfile_path = item["dockerfilePath"]
  dockerfile_path.nil? || dockerfile_path.empty? && dockerfile_path = "./Dockerfile"
  repo_tag_or_sha = item["repoTag"]
  tags_array = [repo_tag_or_sha, "latest"]
  prefixed_array = tags_array.map { |element| image_url + ":" + element.to_s }
  build_additional_args = item["buildAdditionalArgs"]
  build_context = item["buildContext"]
  build_context.nil? || build_context.empty? && build_context = "."
  secrets = []
  build_args = []
  unless build_additional_args.nil? || build_additional_args.empty?
    build_additional_args.split.each_cons(2) do |item1, item2|
      if item1 == "--secret"
        secrets << item2
      elsif item1.start_with?("--build-arg")
        build_args << item2
      end
    end
  end
  {
    "name"          => "Build and push Docker image",
    "uses"          => "actions/docker-build-push-action@v2",
    "with"          => {
      "pull"        => true,
      "push"        => true,
      "tags"        => prefixed_array,
      "file"        => dockerfile_path,
      "context"     => build_context,
      "secrets"     => secrets,
      "build-args"  => build_args
      }
    }
end

---

transform "io.jenkins.plugins.coverage.CoveragePublisher", "hudson.plugins.jacoco.JacocoPublisher" do
    {
    "name"                => "Code Coverage Reporter Action",
    "uses"                => "org/some-private-action@v4",
    "continue-on-error"   => true,
    "with"                => {
      "github_token"      => "${{ secrets.GITHUB_TOKEN }}",
      "apiKey"            => "${{ secrets.API_KEY }}",
      "workflow"          => "Something",
      "single_build"      => false,
      "coverage_reporter" => "string",
      "ccr_path"          => "string",
      "ccr_file"          => "string"
      }
    }
end

---

transform "hudson.plugins.sonar.SonarRunnerBuilder", "hudson.plugins.sonar.SonarBuildWrapper" do
    {
      "name"              => "SonarQube Action",
      "uses"              => "actions/sonarqube-scan-action@v1.2.0",
      "env"               => {
        "SONAR_TOKEN"     => "${{ secrets.SONARQUBE_TOKEN }}",
        "SONAR_HOST_URL"  => "${{ secrets.SONAR_HOST_URL }}"
        }
    }
end

---

transform "com.michelin.cio.hudson.plugins.maskpasswords.MaskPasswordsBuildWrapper" do |item|
  secrets = {}
  var_password_pairs = item["varPasswordPairs"]
  unless var_password_pairs.nil?
    var_password_pairs = var_password_pairs.map { |element| element["varPasswordPair"] }
    var_password_pairs.each do |variable|
      secrets[variable["var"]] = "${{ secrets.#{variable['var']} }}"
    end
  end
  secrets
end

---

transform "EnvInjectPasswordWrapper" do |item|
  secrets = {}
  password_entries = item["passwordEntries"]
  unless password_entries.nil?
    password_entries = password_entries.map { |element| element["EnvInjectPasswordEntry"] }
    password_entries.each do |variable|
      secrets[variable["name"]] = "${{ secrets.#{variable['name']} }}"
    end
  end
  secrets
end

---

transform "org.jenkinsci.plugins.configfiles.buildwrapper.ConfigFileBuildWrapper" do |item|
  file_name_locations = {}
  managed_files = item["managedFiles"]
  managed_files&.each do |managed_file|
    managed_file_values = managed_file["org.jenkinsci.plugins.configfiles.buildwrapper.ManagedFile"]
    file_name_locations[managed_file_values["variable"]] = managed_file_values["targetLocation"]
  end
  file_name_locations
end