def downloadOps = buildOperations.all(ExternalResourceReadBuildOperationType)
        downloadOps.size() == 4
        downloadOps[0].details.location == missing.rootMetaData.uri.toString()
        downloadOps[0].result.bytesRead == 0
        downloadOps[1].details.location == m.rootMetaData.uri.toString()
        downloadOps[1].result.bytesRead == 0
        downloadOps[2].details.location == m.pom.uri.toString()

slow-dependency-downloads.png...

# "gsutil rsync -r" is recursive and makes directories work.
# "gsutil rsync -d" is "sync and delete files from destination if not present in source"

DOWNLOADS="$(mktemp -d)"
mkdir -p "$DOWNLOADS"
gsutil -m rsync -r "$TFCI_ARTIFACT_STAGING_GCS_URI" "$DOWNLOADS"
ls "$DOWNLOADS"

# Upload all build artifacts to e.g. gs://tensorflow/versions/2.16.0-rc1 (releases) or

            project(':child') {
                dependencies {
                    compile 'test:test:1.0'
                    compile 'test:test2:1.0'
                }
            }
"""
    }

    def "downloads only the metadata when dependency graph is queried"() {
        given:
        buildFile << """
            task graph {
                def root = configurations.compile.incoming.resolutionResult.rootComponent

					errStr = throughputHighestResults[i].Error
				}

				// if the default concurrency yields zero results, throw an error.
				if throughputHighestResults[i].Downloads == 0 && opts.concurrencyStart == concurrency {
					errStr = fmt.Sprintf("no results for downloads upon first attempt, concurrency %d and duration %s",
						opts.concurrencyStart, opts.duration)
				}

@TargetGradleVersion(">=7.3")
@Timeout(value = 10, unit = TimeUnit.MINUTES)
class DependencyArtifactDownloadProgressEventCrossVersionTest extends AbstractHttpCrossVersionSpec {

    def "generates typed events for downloads during dependency resolution"() {
        def modules = setupBuildWithArtifactDownloadDuringConfiguration()
        modules.useLargeJars()

        when:
        def events = ProgressEvents.create()

package org.gradle.distribution

import org.gradle.api.DefaultTask
import org.gradle.api.tasks.*
import org.gradle.api.provider.*
import org.gradle.api.file.*

import groovy.transform.CompileStatic

/**
 * Downloads a given version of Gradle into a known location.
 */
@CompileStatic
class DownloadGradle extends DefaultTask {
    @Input
    final Property<String> gradleVersion = project.objects.property(String).value("5.4")

"""
    }

    private prepareWrapper(String baseUrl) {
        prepareWrapper(new URI("${baseUrl}/$TEST_DISTRIBUTION_URL"))
    }

    @Issue('https://github.com/gradle/gradle-private/issues/1537')
    def "downloads wrapper from http server and caches"() {
        given:
        server.expect(server.head("/$TEST_DISTRIBUTION_URL"))
        prepareWrapper(getDefaultBaseUrl())

plugins {
    id 'base'
}

// This is defined in buildSrc
import org.gradle.distribution.DownloadGradle

version = '0.1'

tasks.register('downloadGradle', DownloadGradle) {
    description = 'Downloads the Gradle distribution with a given version.'
    gradleVersion = '4.6'
}

tasks.register('createCustomGradleDistribution', Zip) {
    description = 'Builds custom Gradle distribution and bundles initialization scripts.'

     */
    TEST_OUTPUT,

    /**
     * Flag for file download progress events. This includes various types of files, for example files downloaded during dependency resolution,
     * Gradle distribution downloads, and Java toolchain downloads.
     *
     * <p>
     * The following events are currently issued for this operation type.
     * <ul>
     *     <li>{@link org.gradle.tooling.events.download.FileDownloadStartEvent}</li>