[[sec:types_of_plugins]]
== Types of plugins

Plugins can be implemented as *binary plugins*, *precompiled script plugins*, or *script plugins*:

Binary Plugins :: Binary plugins are compiled plugins typically written in Java or Kotlin DSL that are packaged as JAR files.
They are applied to a project using the `plugins {}` block.

    </plugin>
    <plugin id="codenarc" description="CodeNarc Plugin">
        <extends targetClass="org.gradle.api.Project" id="codenarc" extensionClass="org.gradle.api.plugins.quality.CodeNarcExtension"/>
    </plugin>
    <plugin id="pmd" description="PMD Plugin">
        <extends targetClass="org.gradle.api.Project" id="pmd" extensionClass="org.gradle.api.plugins.quality.PmdExtension"/>
    </plugin>
    <plugin id="jacoco" description="JaCoCo Plugin">

	deny.Register(plugins) // DEPRECATED as no real meaning
	eventratelimit.Register(plugins)
	extendedresourcetoleration.Register(plugins)
	gc.Register(plugins)
	imagepolicy.Register(plugins)
	limitranger.Register(plugins)
	autoprovision.Register(plugins)
	exists.Register(plugins)
	noderestriction.Register(plugins)
	nodetaint.Register(plugins)
	podnodeselector.Register(plugins)

)

// RegisterAllAdmissionPlugins registers all admission plugins
func RegisterAllAdmissionPlugins(plugins *admission.Plugins) {
	lifecycle.Register(plugins)
	validatingwebhook.Register(plugins)
	mutatingwebhook.Register(plugins)
	validatingadmissionpolicy.Register(plugins)

	// initialized later.

	// Each plugin can make use of VolumeConfig.  The single arg to this func contains *all* enumerated
	// options meant to configure volume plugins.  From that single config, create an instance of volume.VolumeConfig
	// for a specific plugin and pass that instance to the plugin's ProbeVolumePlugins(config) func.

	// HostPath recycling is for testing and development purposes only!

		klog.ErrorS(err, "Error initializing dynamic plugin prober")
		pm.prober = &dummyPluginProber{}
	}

	if pm.plugins == nil {
		pm.plugins = map[string]VolumePlugin{}
	}
	if pm.probedPlugins == nil {
		pm.probedPlugins = map[string]VolumePlugin{}
	}

	allErrs := []error{}
	for _, plugin := range plugins {
		name := plugin.GetPluginName()

// Package plugin implements loading and symbol resolution of Go plugins.
//
// A plugin is a Go main package with exported functions and variables that
// has been built with:
//
//	go build -buildmode=plugin
//
// When a plugin is first opened, the init functions of all packages not
// already part of the program are called. The main function is not run.
// A plugin is only initialized once, and cannot be closed.

        file("buildSrc/src/main/groovy/PluginB.groovy") << """
            class PluginB implements $Plugin.name {
                void apply(project) {}
            }
        """
        file("buildSrc/src/main/resources/META-INF/gradle-plugins/b.properties") << "implementation-class=PluginB"

        file("buildSrc/src/main/groovy/PluginC.groovy") << """

permissions and limitations * under the License. */ import org.apache.maven.plugin.AbstractMojo; /** * Does nothing. * * @goal addPluginArtifactMet * * @author Benjamin Bentmann */ public class TestMojo extends AbstractMojo { public void execute() { } } META-INF/maven/org.apache.maven.plugins/maven-plugin-plugin/pom.xml 4.0.0 org.apache.maven.plugins maven-plugin-plugin 0.1 maven-plugin Maven Integration Test Plugin A test plugin to assist testing of Maven core. 2009 maven-core-it file:///${basedir}/repo...

		<get dest="${target.dir}">
			<url url="${repo.url}/${plugin.groupId}/${plugin.name.prefix}${plugin.name}/${plugin.version}/${plugin.name.prefix}${plugin.name}-${plugin.zip.version}.zip" />
		</get>
		<unzip dest="${plugins.dir}/${plugin.name}" src="${target.dir}/${plugin.name.prefix}${plugin.name}-${plugin.zip.version}.zip">
			<patternset>
				<include name="**" />
			</patternset>
			<cutdirsmapper dirs="1" />
		</unzip>
	</target>