Move GPG plugin to signing profile block

Author: sbabcoc

pom.xml

@@ -36,7 +36,6 @@
     <staging-plugin.version>1.6.7</staging-plugin.version>
     <release-plugin.version>2.5.3</release-plugin.version>
     <apache-derby.version>10.14.1.0</apache-derby.version>
-    <skipSigning>true</skipSigning>
   </properties>
 
   <scm>
@@ -158,24 +157,6 @@
           </execution>
         </executions>
       </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-gpg-plugin</artifactId>
-        <executions>
-          <execution>
-            <id>sign-artifacts</id>
-            <phase>verify</phase>
-            <goals>
-              <goal>sign</goal>
-            </goals>
-            <configuration>
-              <keyname>${gpg.keyname}</keyname>
-              <passphraseServerId>${gpg.keyname}</passphraseServerId>
-              <skip>${skipSigning}</skip>
-            </configuration>
-          </execution>
-        </executions>
-      </plugin>
       <plugin>
         <groupId>org.sonatype.plugins</groupId>
         <artifactId>nexus-staging-maven-plugin</artifactId>
@@ -201,10 +182,36 @@
 
   <profiles>
     <profile>
-      <id>release</id>
-      <properties>
-        <skipSigning>false</skipSigning>
-      </properties>
+      <id>release-sign-artifacts</id>
+      <activation>
+        <property>
+          <name>performRelease</name>
+          <value>true</value>
+        </property>
+      </activation>
+      <build>
+        <pluginManagement>
+        </pluginManagement>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-gpg-plugin</artifactId>
+            <executions>
+              <execution>
+                <id>sign-artifacts</id>
+                <phase>verify</phase>
+                <goals>
+                  <goal>sign</goal>
+                </goals>
+                <configuration>
+                  <keyname>${gpg.keyname}</keyname>
+                  <passphraseServerId>${gpg.keyname}</passphraseServerId>
+                </configuration>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
     </profile>
   </profiles>
 </project>