how to Include the buildnumber in maven pdf:pdf - maven

Question

I am trying to include the build number in the pdf's that get generated with the maven pdf plugin. I have all the documentation of the project I am working on written as a maven site. This way all the documentation is stored with the source code.
Pom.xml
So in the pom.xml I have defined the buildnumber plugin:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>buildnumber-maven-plugin</artifactId>
<version>1.2</version>
<executions>
<execution>
<phase>generate-resources</phase>
<goals>
<goal>create</goal>
</goals>
</execution>
</executions>
<configuration>
<doCheck>false</doCheck>
<doUpdate>false</doUpdate>
<format>{0,date,yyyy-MM-dd_HH-mm}_{1}</format>
<items>
<item>timestamp</item>
<item>${user.name}</item>
</items>
</configuration>
</plugin>
pdf.xml
And in the pdf.xml
<cover>
<coverTitle>${project.name}</coverTitle>
<coverSubTitle>v. ${project.version}</coverSubTitle>
<coverType>Technical documentation</coverType>
<coverVersion>build: ${project.buildNumber}</coverVersion>
<projectName>${project.name}</projectName>
<projectLogo>images/telfortlogo.jpg</projectLogo>
</cover>
I even put resource filtering to ${basedir}/site but it has no effect. I keep getting the ${buildNumber} instead of the result of the buildnumber plugin.

Answer 1

To get something similar working my buildnumber plugin configuration looked like this:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>buildnumber-maven-plugin</artifactId>
<version>1.2</version>
<executions>
<execution>
<phase>pre-site</phase>
<goals>
<goal>create</goal>
</goals>
<configuration>
<doCheck>false</doCheck>
<doUpdate>false</doUpdate>
<format>{0,date,yyyy-MM-dd_HH-mm}_{1}</format>
<items>
<item>timestamp</item>
<item>${user.name}</item>
</items>
</configuration>
</execution>
</executions>
</plugin>
And in the pdf.xml:
<cover>
<coverTitle>${project.name}</coverTitle>
<coverSubTitle>v. ${project.version} build ${buildNumber}</coverSubTitle>
<coverType>User Guide</coverType>
<projectName>${project.name}</projectName>
</cover>
I believe that your issue comes from the fact that you are executing the buildnumber create goal during the generate-resources phase. And if you are using mvn pdf:pdf or mvn site, the generate-resources will not get executed.
I my setup I have configured the pdf plugin to run on the site phase:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-pdf-plugin</artifactId>
<executions>
<execution>
<id>pdf</id>
<phase>site</phase>
<goals>
<goal>pdf</goal>
</goals>
I can then get the pdf to be generated at the end of the site phase.