mini.xml

<plugin>
  <groupId>org.codehaus.mojo</groupId>
  <artifactId>exec-maven-plugin</artifactId>
  <version>1.2.1</version>
  <executions>
    <execution>
      <id>exec-npm-install</id>
      <phase>generate-sources</phase>
      <configuration>
        <executable>npm</executable>
        <arguments>
          <argument>install</argument>
        </arguments>
      </configuration>
      <goals>
        <goal>exec</goal>
      </goals>
    </execution>
    <execution>
      <id>exec-bower-install</id>
      <phase>generate-sources</phase>
      <configuration>
        <executable>bower</executable>
        <arguments>
          <argument>--allow-root</argument>
          <argument>install</argument>
        </arguments>
      </configuration>
      <goals>
        <goal>exec</goal>
      </goals>
    </execution>
  </executions>
</plugin>
<plugin>
  <groupId>net.alchim31.maven</groupId>
  <artifactId>yuicompressor-maven-plugin</artifactId>
  <version>1.1</version>
  <executions>
    <execution>
      <goals>
        <goal>compress</goal>
      </goals>
    </execution>
  </executions>
  <configuration>
    <failOnWarning>true</failOnWarning>
    <outputDirectory>target/${project.artifactId}/js/</outputDirectory>
    <nosuffix>true</nosuffix>
    <excludes>
      <exclude>imgs/**</exclude>
      <exclude>**/js/**/*js</exclude>
      <exclude>vendor/**</exclude>
      <exclude>**/*min.css</exclude>
      <exclude>**/*min.js</exclude>
    </excludes>
  </configuration>
</plugin>