Just a maven plugin that embed a dot2png rendition library into maven plugin.
Plugin render all .gv files present into parsingDirectory png.
Project is not into maven central or another repository. So you need to build them by yourself.
If you are into compay that have security policies that block jitpack, you need to build this library too: https://github.com/cafetux/dot-diagram-to-picture
And change the pom to import them without jitpack.
<build>
<plugins>
<plugin>
<groupId>com.livido</groupId>
<artifactId>maven-dot-to-png-plugin</artifactId>
<version>1.0-SNAPSHOT</version>
<configuration>
<resultDirectory>target/png</resultDirectory>
</configuration>
<executions>
<execution>
<goals>
<goal>dot-to-png</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<configuration>
<parsingDirectory>directory to parse</parsingDirectory>
<resultDirectory>directory to write results</resultDirectory>
</configuration>
or use -Dgraph.dot2png.resultDirectory and -Dgraph.dot2png.parsingDirectory