def branch = System.getenv("GITHUB_REF")
if(branch != null) {
    branch = branch.replace('refs/heads/', '')
}
def isRelease = System.getenv("IS_RELEASE") == "true"

def snapshotName = (branch == null || branch.startsWith("release-please")) ? "SNAPSHOT" : branch
def githubSha = System.getenv("GITHUB_SHA")
def shaRef = githubSha != null ? "-${githubSha.substring(0, 8)}" : ""

ext.branch = branch
ext.snapshotName = snapshotName
ext.githubSha = githubSha
ext.shaRef = shaRef
ext.isRelease = isRelease