change to maven plugin

pom.xml

@@ -1,32 +1,37 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>kryptonbutterfly</groupId>
 	<artifactId>cache_builder</artifactId>
-	<version>2.0.0</version>
+	<version>3.0.0</version>
 	<name>CacheBuilder</name>
-	<description>A java bytecode manipulator to decorate annotated functions with a specified cache</description>
-
+	<description>A java bytecode manipulator to decorate annotated functions
+		with a specified cache</description>
+	<packaging>maven-plugin</packaging>
+
 	<distributionManagement>
 		<repository>
 			<id>github</id>
 			<name>GitHub kryptonbutterfly Apache Maven Packages</name>
 			<url>https://maven.pkg.github.com/kryptonbutterfly/maven-repo</url>
 		</repository>
 	</distributionManagement>
-	
+
 	<properties>
+		<maven-plugin-tools.version>3.9.0</maven-plugin-tools.version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>18</java.version>
 	</properties>
-	
+
 	<repositories>
 		<repository>
 			<id>github</id>
 			<url>https://maven.pkg.github.com/kryptonbutterfly/maven-repo</url>
 		</repository>
 	</repositories>
-	
+
 	<dependencies>
 		<dependency>
 			<groupId>kryptonbutterfly</groupId>
@@ -43,10 +48,32 @@
 			<artifactId>asm-tree</artifactId>
 			<version>9.6</version>
 		</dependency>
+		<!-- maven plugin api -->
+		<dependency>
+			<groupId>org.apache.maven</groupId>
+			<artifactId>maven-plugin-api</artifactId>
+			<version>3.6.3</version>
+			<scope>provided</scope>
+		</dependency>
+		<!-- maven plugin annotations -->
+		<dependency>
+			<groupId>org.apache.maven.plugin-tools</groupId>
+			<artifactId>maven-plugin-annotations</artifactId>
+			<version>3.9.0</version>
+			<scope>provided</scope>
+		</dependency>
 	</dependencies>
-	
+
 	<build>
 		<sourceDirectory>src</sourceDirectory>
+		<resources>
+			<resource>
+				<directory>src</directory>
+				<excludes>
+					<exclude>**/*.java</exclude>
+				</excludes>
+			</resource>
+		</resources>
 		<pluginManagement>
 			<plugins>
 				<plugin>
@@ -74,6 +101,19 @@
 					<release>18</release>
 				</configuration>
 			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-plugin-plugin</artifactId>
+				<version>${maven-plugin-tools.version}</version>
+				<executions>
+					<execution>
+						<id>help-mojo</id>
+						<goals>
+							<goal>helpmojo</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-jar-plugin</artifactId>