def ITS_BRANCH = env.CHANGE_BRANCH != null ? env.CHANGE_BRANCH :  env.BRANCH_NAME;
                                try {
                                  echo "Checkout ITs from branch: ${ITS_BRANCH}"
                                  checkout([$class: 'GitSCM',
                                          branches: [[name: ITS_BRANCH]],

        }

        cleanup {
            history(days = 180)
        }

        this.init()
    }
}

class PublishFinalRelease(branch: VersionedSettingsBranch) : PublishRelease(
    promotedBranch = branch.branchName,
    prepTask = "prepFinalRelease",
    promoteTask = branch.promoteFinalReleaseTaskName(),
    requiredConfirmationCode = "final",
    init = {
        id("Promotion_FinalRelease")

 *
 * When merging `releaseX` branch into `master`, we should only use the release note from the `master` branch,
 * but sometimes changes on release notes.md was brought to master and merged unnoticed,
 * e.g https://github.com/gradle/gradle/pull/25825
 *
 * This script is to check if there is any merge commit that brings changes from release branch to master.
 * Usage: groovy CheckBadMerge.groovy <commit1> <commit2> ...

    fun `publish milestone build type runs three gradle invocations`(branch: String, promoteTaskName: String) {
        val model = setupModelFor(branch)
        val nightlySnapshot = model.findBuildTypeByName("Release - Milestone")

        val steps = nightlySnapshot.steps.items
        assertEquals(3, steps.size)

func parseCopyPartRangeSpec(rangeString string) (hrange *HTTPRangeSpec, err error) {
	hrange, err = parseRequestRangeSpec(rangeString)
	if err != nil {
		return nil, err
	}
	if hrange.IsSuffixLength || hrange.Start < 0 || hrange.End < 0 {
		return nil, errInvalidRange
	}
	return hrange, nil
}

// checkCopyPartRangeWithSize adds more check to the range string in case of

    get() = environmentVariable(BUILD_BRANCH).orElse(currentGitBranchViaFileSystemQuery())


/**
 * The logical branch.
 * For non-merge-queue branches this is the same as {@link #buildBranch}.
 * For merge-queue branches, this is the base branch.
 *
 * For example, for the merge queue branch "gh-readonly-queue/master/pr-12345-1a2b3c4d" the logical branch is "master".
 */

    if [[ "$(git rev-parse --abbrev-ref HEAD)" == "pull_branch" ]]; then
        # TF's CI runs 'git fetch origin "pull/PR#/merge:pull_branch"'
        # To get the as-merged branch during the CI tests
        git diff --diff-filter ACMRT --name-only pull_branch^ pull_branch > $BATS_FILE_TMPDIR/changed_files
    else
        # If the branch is not present, then diff against origin/master

                        def WORK_DIR=pwd()
                        def ITS_BRANCH = env.CHANGE_BRANCH != null ? env.CHANGE_BRANCH :  env.BRANCH_NAME;
                        try {
                          echo "Checkout ITs from branch: ${ITS_BRANCH}"
                          checkout([$class: 'GitSCM',
                                  branches: [[name: ITS_BRANCH]],

# limitations under the License.

set -exo pipefail

UPDATE_BRANCH=${UPDATE_BRANCH:-"master"}

SCRIPTPATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
ROOTDIR=$(dirname "${SCRIPTPATH}")
cd "${ROOTDIR}"

# Get the sha of top commit
# $1 = repo
function getSha() {
  git ls-remote "https://github.com/istio/${1}.git" "refs/heads/${UPDATE_BRANCH}" | cut -f 1
}

make update-common

export GO111MODULE=on

        private
        const val EXPERIMENTAL_BRANCH = "experimental"

        private
        val OLD_RELEASE_PATTERN = "release(\\d+)x".toRegex()

        fun fromDslContext(): VersionedSettingsBranch {
            val branch = DslContext.getParameter("Branch")
            // TeamCity uses a dummy name when first running the DSL
            if (branch.contains("placeholder-1")) {