To sign off a single commit:

`git commit --amend --signoff`

To sign off one or multiple commits:

`git rebase --signoff origin/master`

Then force push your branch:

`git push --force origin test-branch`

### Fixing sanity check failures after public API changes

import common.requiresOs
import jetbrains.buildServer.configs.kotlin.BuildType
import jetbrains.buildServer.configs.kotlin.triggers.vcs
import vcsroots.gradlePromotionMaster
import vcsroots.useAbsoluteVcs

// Gradle_Master_Promotion_SanityCheck
object SanityCheck : BuildType({
    id("Promotion_SanityCheck")
    name = "SanityCheck"
    description = "Sanity check for promotion project"

    vcs.useAbsoluteVcs(gradlePromotionMaster)

We use *Specification* and *Discovery* documents stored in Google Drive, but they present some downsides:

* They are rarely updated after creation and initial review, and then become hard to follow, especially after important decisions are made
* They are not synced with the code to reflect the eventual solution that is committed
* Google Docs is not a "code-oriented" tool, like asciidoc can be

object StartReleaseCycle : BasePromotionBuildType(vcsRootId = gradlePromotionMaster) {
    init {
        id("Promotion_StartReleaseCycle")
        name = "Start Release Cycle"
        description = "Promotes a successful build on master as the start of a new release cycle on the release branch"

        params {

limitations under the License."""
}

tasks.idea {
    doFirst { throw RuntimeException("To import in IntelliJ, please follow the instructions here: https://github.com/gradle/gradle/blob/master/CONTRIBUTING.md#intellij") }
}

if (idea.project != null) { // may be null during script compilation
    idea {
        module {
            // We exclude some top-level directories, so their content is not indexed

import javassist.bytecode.SourceFileAttribute
import java.io.File


/**
 * Repository of sources for binary compatibility checks.
 *
 * `WARN` Holds resources open for performance, must be closed after use.
 */
class BinaryCompatibilityRepository internal constructor(

    private
    val sources: SourcesRepository

) : AutoCloseable {

    companion object {

        @JvmStatic

@EnabledIfEnvironmentVariable(named = "CI", matches = ".*", disabledReason = "Tests rely on setup conditional on CI in gradlebuild.ci-reporting plugin running first, these test should only run if CI env var is present (it's value doesn't matter)")
class TestFilesCleanupServiceTest {
    @TempDir
    lateinit var projectDir: File

    private
    fun File.mkdirsAndWriteText(text: String) {
        parentFile.mkdirs()
        writeText(text)
    }

    // Set the project id here, so we can use methods on the DslContext
    parentProjectId = AbsoluteId("Gradle")
    projectId = AbsoluteId("Gradle_Master")
    settingsRootId = AbsoluteId("GradleMaster")
    settingsRoot.name = "GradleMaster"
    addParameters("Branch" to "master")

class PerformanceTestBuildTypeTest {
    init {
        DslContext.initForTest()
    }

    private
    val buildModel = CIBuildModel(
        projectId = "Gradle_Check",
        branch = VersionedSettingsBranch("master"),
        buildScanTags = listOf("Check"),
        subprojects = JsonBasedGradleSubprojectProvider(File("../.teamcity/subprojects.json"))
    )

    @Test
    fun `create correct PerformanceTest build type for Linux`() {