gistfile1.xml

<plugin>
  <artifactId>maven-antrun-plugin</artifactId>
  <version>1.7</version>
  <executions>
      <execution>
          <phase>generate-sources</phase>
          <configuration>
              <target name="building">
                  <echo>
---------------------------------------------------
--                  NPM INSTALL                  --
---------------------------------------------------
                  </echo>
                  <exec executable="cmd" dir="${project.basedir}" osfamily="windows" failonerror="true">
                      <arg line="/c npm config set color false"/>
                  </exec>
                  <exec executable="bash" dir="${project.basedir}" osfamily="unix" failonerror="true">
                      <arg line="npm config set color false"/>
                  </exec>
                  <exec executable="cmd" dir="${project.basedir}" osfamily="windows" failonerror="true">
                      <arg line="/c npm install"/>
                  </exec>
                  <exec executable="bash" dir="${project.basedir}" osfamily="unix" failonerror="true">
                      <arg line="npm install"/>
                  </exec>
                  <echo>
---------------------------------------------------
--                     GRUNT                     --
---------------------------------------------------
                  </echo>
                  <exec executable="cmd" dir="${project.basedir}" osfamily="windows" resultproperty="cmdresult">
                      <arg line="/c grunt --no-color > grunt.status "/>
                  </exec>
                  <exec executable="bash" dir="${project.basedir}" osfamily="unix" resultproperty="cmdresult">
                      <arg line="grunt --no-color > grunt.status"/>
                  </exec>

                  <loadfile property="grunt.status" srcFile="grunt.status"/>
                  <echo>${grunt.status}</echo>
                  <delete file="grunt.status" quiet="true"/>
                  <condition property="cmdsuccess">
                      <equals arg1="${cmdresult}" arg2="0"/>
                  </condition>
                  <fail unless="cmdsuccess"/>
              </target>
          </configuration>
          <goals>
              <goal>run</goal>
          </goals>
      </execution>
  </executions>
</plugin>