tasks.whenTaskAdded {
    extra["srcDir"] = "src/main/java"
}

val a by tasks.registering

	// APIServerCertSANs flag sets extra Subject Alternative Names (SANs) to use for the API Server serving certificate. Can be both IP addresses and DNS names.
	APIServerCertSANs = "apiserver-cert-extra-sans"

	// APIServerExtraArgs flag sets a extra flags to pass to the API Server or override default ones in form of <flagname>=<value>.
	APIServerExtraArgs = "apiserver-extra-args"

		if err != nil {
			log.Printf("%s: %v", arg, err)
			exitCode = 1
			continue
		}

		a := new(txtar.Archive)
		title := arg
		if !strings.Contains(arg, "@") {
			title += "@" + vers
		}
		a.Comment = []byte(fmt.Sprintf("module %s\n\n", title))
		a.Files = []txtar.File{
			{Name: ".mod", Data: mod},
			{Name: ".info", Data: info},
		}
		dir = filepath.Clean(dir)

class DefaultIvyExtraInfoSpecTest extends Specification {
    def "can add extra info elements" () {
        def DefaultIvyExtraInfoSpec extraInfo = new DefaultIvyExtraInfoSpec()

        when:
        extraInfo.add("http://my.extra.info", "foo", "fooValue")

        then:
        extraInfo.asMap() == [ (new QName("http://my.extra.info", "foo")): "fooValue" ]
    }

			Groups   []string            `json:"groups"`
			Extra    map[string][]string `json:"extra"`
		}
		type status struct {
			Authenticated bool     `json:"authenticated"`
			User          userInfo `json:"user"`
			Audiences     []string `json:"audiences"`
		}

		var extra map[string][]string
		if review.Status.User.Extra != nil {
			extra = map[string][]string{}
			for k, v := range review.Status.User.Extra {

			// Write the LZW data.
			b.Write(enc)

			// Write extra bytes inside the same data sub-block where LZW data
			// ended. Each arbitrarily 0x02.
			b.WriteString(extra[:tc.extraExisting])
		}

		if tc.extraSeparate > 0 {
			// Data sub-block size. This indicates how many extra bytes follow.
			b.WriteByte(byte(tc.extraSeparate))
			b.WriteString(extra[:tc.extraSeparate])
		}

        assert file("metadata").text == "{{http://my.extra.info/bar}bar=barValueChanged, {http://my.extra.info/foo}foo=fooValueChanged}\ndifferentBranch\nmilestone"
    }

    private static NamespaceId ns(String name) {
        return new NamespaceId("http://my.extra.info/${name}", name)
    }

    private static String declareNS(String name) {
        "(new javax.xml.namespace.QName('http://my.extra.info/${name}', '${name}'))"
    }

import org.gradle.internal.extensions.stdlib.uncheckedCast


inline fun <reified T : Any> Project.setSingletonProperty(value: T) {
    extra[T::class.java.name] = value
}


inline fun <reified T> Project.popSingletonProperty(): T? =
    extra.remove(T::class.java.name)?.uncheckedCast()


val Project.extra: ExtraPropertiesExtension

====

[[sec:extra_properties]]
==== Extra Properties

Gradle's enhanced objects, including projects, tasks, and source sets, can hold user-defined properties.

[.multi-language-text.lang-kotlin]
Add, read, and set extra properties via the owning object's `extra` property. Alternatively, you can access extra properties via Kotlin delegated properties using `by extra`.

[.multi-language-text.lang-groovy]

	extra := make(map[string]authorization.ExtraValue)
	for k, v := range csr.Spec.Extra {
		extra[k] = authorization.ExtraValue(v)
	}

	sar := &authorization.SubjectAccessReview{
		Spec: authorization.SubjectAccessReviewSpec{
			User:               csr.Spec.Username,
			UID:                csr.Spec.UID,
			Groups:             csr.Spec.Groups,
			Extra:              extra,