if (matchResult == null) {
                    null
                } else {
                    (matchResult.groupValues[1].toInt() - 4).apply {
                        require(this in 2..23)
                    }
                }
            }
        }
    }

    val isMainBranch: Boolean
        get() = isMaster || isRelease
    val isMaster: Boolean

    doesNotContain("teamcity.agent.name", "EC2")
}

/**
 * We have some "shared" host where a Linux build agent and a Windows build agent
 * both run on the same bare metal. Some builds require exclusive access to the
 * hardware resources (e.g. performance test).
 */
fun Requirements.requiresNotSharedHost() {
    doesNotContain("agent.host.type", "shared")
}

/**

import org.gradle.kotlin.dsl.*
import org.gradle.kotlin.dsl.support.serviceOf
import java.io.File


class TestFilesCleanupRootPlugin : Plugin<Project> {
    override fun apply(project: Project) {
        require(project.rootProject == project) { "This plugin should be applied to root project!" }
        val globalExtension = project.extensions.create<TestFilesCleanupBuildServiceRootExtension>("testFilesCleanupRoot")

# within the file.  We keep each automation (or very closely related group of automations) in
# its own file.

on:
  - pr_created
  - commit
  - comment_added

automations:

  # If a PR is very complex, require 2 approvals
  complex_changes:
    if:
      - {{ ('complex_changes' | isEnabledAutomation(pr)) }}
      - {{ branch | estimatedReviewTime >= 40 }}
      - {{ files | length >= 35 }}
      - {{ includes_src_changes }}

        findLatest("junit-jupiter", "org.junit.jupiter:junit-jupiter-api:(5,)", versionProperties)
        findLatest("testng", "org.testng:testng:(6.0,7.6.0)", versionProperties) // TestNG 7.6.0 and above require JDK 11; see https://groups.google.com/g/testng-users/c/BAFB1vk-kok
        findLatest("slf4j", "org.slf4j:slf4j-api:(1.7,)", versionProperties)

                || candidateVersion.version.endsWith("-snapshot-1")
        }

        // Remove state for old versions of Gradle that we're unlikely to ever require again
        fileSystemOperations.removeOldVersionsFromDir(workerDir.dir("caches"), expireDistributionCache)

        // Remove scripts caches
        fileSystemOperations.removeCachedScripts(workerDir.dir("caches").asFile)

                    "$linePrefix ${latestKotlinVersions.first()} through ${latestKotlinVersions.last()}."
                } else {
                    line
                }
            }
        )
        require(lineFound) {
            "File '$docFile' does not contain the expected Kotlin compatibility line"
        }
    }

    private

                } else {
                    line
                }
            }
        )
        require(lineFound) {
            "File '$docFile' does not contain the expected Kotlin compatibility line"
        }
    }

    private
    val List<String>.firstBaseVersion: String

Available JDKs on your machine are automatically detected and wired for the various compile and test tasks.
Some tests require multiple JDKs to be installed on your computer, be aware of this if you make changes related to anything toolchains related.

    override fun execute(context: ComponentMetadataContext) {
        context.details.allVariants {
            withDependencies {
                filter { it.group == "xml-apis" }.forEach {
                    it.version { require("1.4.01") }
                    it.because("Gradle has trouble with the versioning scheme and pom redirects in higher versions")
                }
            }
        }
    }
}