[build] Automate property replacement in pom.xml and exclude the release directory from license checks. (#4134)

Author: lvyanquan

pom.xml

@@ -421,6 +421,8 @@ limitations under the License.
                     </licenseFamilies>
                     <excludes>
                         <!-- Additional files like .gitignore etc.-->
+                        <!-- Release files -->
+                        <exclude>**/release/**</exclude>
                         <exclude>**/README.md</exclude>
                         <exclude>**/.*/**</exclude>
                         <!-- Generated content -->
@@ -676,6 +678,16 @@ limitations under the License.
                     <target>${maven.compiler.target}</target>
                 </configuration>
             </plugin>
+
+            <!-- Allow modification of pom.xml properties using Maven commands. -->
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>versions-maven-plugin</artifactId>
+                <version>2.5</version>
+                <configuration>
+                    <generateBackupPoms>false</generateBackupPoms>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 

tools/releasing/update_branch_version.sh

@@ -52,6 +52,7 @@ cd ${PROJECT_ROOT}
 
 # change version in all pom files
 mvn versions:set -DgenerateBackupPoms=false -DnewVersion=${NEW_VERSION}
+mvn versions:set-property -Dproperty=revision -DnewVersion=${NEW_VERSION}
 
 git commit -am "[release] Update version to ${NEW_VERSION}"