Pipeline: Is SCM revision information stored with each build?

[Dallas Clement]

I know that I can get the latest revision for the current build by executing a shell command such as:

      def currentCommit = sh(returnStdout: true, script: 'git rev-parse HEAD').trim()

But I would like to get the commit hash associated with a previous build.  The reason I want to do this is so that I can list all commits associated with a given build since the previous build.

[Dallas Clement]

Answering my own question again.  It looks like there is some API available for getting SCM revision info in a groovy sandbox environment. 

def getChanges() {

  def lines = []

  def changeSets = currentBuild.changeSets

  for (int i = 0; i < changeSets.size(); i++) {

    def entries = changeSets[i].items

    for (int j = 0; j < entries.length; j++) {

      def entry = entries[j]

      lines.add("${entry.commitId} by ${entry.author} on ${new Date(entry.timestamp)}: ${entry.msg}")

      def files = new ArrayList(entry.affectedFiles)

      for (int k = 0; k < files.size(); k++) {

        def file = files[k]

        lines.add("\t${file.editType.name} ${file.path}")

      }

    }

  }

  def string = ''

  for (i = 0; i < lines.size(); i++) {

    string += lines[i] + '\n'

  }

  return string

}

Trying to get this info from currentBuild.rawBuild seems nearly impossible due to sandbox / security restrictions.