Configure maven-release-plugin

See spdx/spdx-maven-plugin#125 (comment)
for information on using the release plugin

Signed-off-by: Gary O'Neall <gary@sourceauditor.com>

Author: goneall

RELEASE-CHECKLIST.md

@@ -0,0 +1,9 @@
+# Release Checklist for the SPDX Java Tools
+
+- [ ] Check for any warnings from the compiler and findbugs
+- [ ] Test the release `mvn release:prepare -DdryRun`
+- [ ] Run `mvn release:prepare` - you will be prompted for the release - typically take the defaults
+- [ ] Run `mvn release:perform`
+- [ ] Release artifacts to Maven Central
+- [ ] Create a Git release including release notes
+- [ ] Zip up the files from the Maven archive and add them to the release

pom.xml

@@ -34,6 +34,7 @@
 		<url>https://github.com/spdx/Spdx-Java-Library</url>
 		<connection>scm:git:git://github.com/spdx/Spdx-Java-Library.git</connection>
 		<developerConnection>scm:git:git@github.com:/spdx/Spdx-Java-Library.git</developerConnection>
+		<tag>master</tag>
 	</scm>
 	<distributionManagement>
 		<repository>
@@ -79,9 +80,23 @@
 			</properties>
 		</profile>
 		<profile>
-			<id>gpg-signing</id>
+			<id>release</id>
 			<build>
 				<plugins>
+		          <plugin>
+		              <groupId>org.apache.maven.plugins</groupId>
+		              <artifactId>maven-source-plugin</artifactId>
+		              <version>3.2.1</version>
+		              <executions>
+		                <execution>
+		                  <id>attach-sources</id>
+		                  <phase>verify</phase>
+		                  <goals>
+		                    <goal>jar-no-fork</goal>
+		                  </goals>
+		                </execution>
+		              </executions>
+		            </plugin>
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-gpg-plugin</artifactId>
@@ -229,20 +244,6 @@
 					</archive>
 				</configuration>
 			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-source-plugin</artifactId>
-				<version>3.3.0</version>
-				<executions>
-					<execution>
-						<id>attach-sources</id>
-						<phase>verify</phase>
-						<goals>
-							<goal>jar-no-fork</goal>
-						</goals>
-					</execution>
-				</executions>
-			</plugin>
 			<plugin>
 				<groupId>org.spdx</groupId>
 				<artifactId>spdx-maven-plugin</artifactId>
@@ -286,6 +287,16 @@
 					<originator>Organization: Linux Foundation</originator>
 				</configuration>
 			</plugin>
+	        <plugin>
+	          <groupId>org.apache.maven.plugins</groupId>
+	          <artifactId>maven-release-plugin</artifactId>
+	          <version>3.0.1</version>
+	          <configuration>
+	            <tagNameFormat>v@{project.version}</tagNameFormat>
+	            <releaseProfiles>release</releaseProfiles>
+	            <goals>deploy</goals>
+	          </configuration>
+	        </plugin>
 		</plugins>
 	</build>
 	<reporting>