custom{
                    contents {
                        from { "someFile" }
                    }
                }
            }

            """
        then:
        succeeds('customDistZip')
        and:
        file('build/distributions/TestProject-custom.zip').usingNativeTools().unzipTo(file("unzip"))
        file("unzip/TestProject-custom/someFile").assertIsFile()
    }

        when:
        project.pluginManager.apply(DistributionPlugin)
        project.distributions.create('custom')

        then:
        def task = project.tasks.customDistZip
        task instanceof Zip
        task.archiveFile.get().asFile == project.file("build/distributions/test-project-custom.zip")
    }

    def "adds distTar task for main distribution"() {
        when:

Assembles the distribution content and installs it on the current machine.

The following sample creates a `custom` distribution that will cause four additional tasks to be added to the project: `customDistZip`, `customDistTar`, `assembleCustomDist`, and `installCustomDist`:

.Adding extra distributions
====
include::sample[dir="snippets/base/distribution/kotlin",files="build.gradle.kts[tags=custom-distribution]"]