Custom changelog in Jenkins Pipelines - jenkins

Question

I was wondering if it is possible to have a custom changelog appear for Jenkins Pipelines. Ideally, I'd like to propagate the downstream changelogs, but failing that I've tried to create a custom changelog derived from the downstream builds. However, it doesn't appear to work (with no option for viewing the pipeline's workspace either).
I was wondering if this is something that I'm just getting wrong or whether it's actually supported or not.
This is the sample code I'm testing with
node('master')
{
stage('Source')
{
build 'SourceBuild'
def rootDir = currentBuild.rawBuild.getRootDir().toString()
echo rootDir
def changelog = new File(rootDir, "changelog.xml")
PrintWriter writer = new PrintWriter(new FileWriter(changelog));
writer.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
writer.println("<changelog>");
writer.println(String.format("\t\t<user>%s</user>", 'User'));
writer.println(String.format("\t\t<comment>Change</comment>", 'Comment'));
writer.println("\t</changeset>");
writer.println("</changelog>");
writer.close();
}
}
Many thanks

Answer 1

In Jenkins pipeline, I noticed that there is a global variable named currentBuild. It has a readable property called changeSets. I would rather take this approach with pipeline instead of playing around with changelog.xml
stage('some name') {
def gitChangeSetList = currentBuild.changeSets
formatGitChangeLog(gitChangeSetList)
}
def formatGitChangeLog(GitChangeSetList changeSetList) {
def formatStr = ""
for (setItem in changeSetList) {
for (change in setItem.getLogs()) {
formatStr += "${change.getAuthor().getDisplayName()}: ${change.getMsg()}\n"
}
}
return formatStr
}
currentBuild.changeSets is of type GitChangeSetList. From the javadoc, we can derive various methods involved in GitChangeSet.