Hi Karl-Heinz,
Karl Heinz Marbaise wrote:
> Hi,
>
> > Move the Java code that should contain the version into an own
> > directory
>> tree (e.g. src/main/java-templates). Replace the version string with an
>> expression (e.g. "${project.version}") and use the copy-resources goal of
>> the resources plugin to filter the file into a target driectory tree
>> (e.g. target/generated-sources). Bind the goal to the generate-sources
>> phase. Then use additionally the build-helper plugin to add
>> target/generated-sources as additional source directory and you're done.
>
> Best solution was already mentoined by Robert Scholte by using the
> templating-maven-plugin which exactly supports that scenario without
> supplemental addition of target/generated-sources folder by
> build-helpr-maven-plugin etc.
>
> Just simply create the template files in src/main/java-templates/ use
> the expressions etc. no need for supplemental configuration of
> maven-resources-plugin etc.
>
> Best and simple solution...which i wrote longer time a go a blog about
> http://blog.soebes.de/blog/2014/01/02/version-information-into-your-appas-with-maven/
nice article ;-)
There's one comment I do not understand though:
> The main disadvantage of this approach is that you can only use the
> Implementation and Specification parts of your MANIFEST.MF file which
> might be enough in some situations but not in all.
You can add all kind of entries to the manifest. You may even overwrite the
defaults. We use typically:
===================== %< ======================
<archive>
<manifest>
<addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
</manifest>
<manifestEntries>
<Specification-Version>${parsedVersion.majorVersion}.
${parsedVersion.minorVersion}</Specification-Version>
<X-Compile-Source>${java.version.source}</X-Compile-Source>
<X-Compile-Target>${java.version.target}</X-Compile-Target>
<X-Builder>Maven ${maven.version}</X-Builder>
<X-Build-Time>${maven.build.timestamp}</X-Build-Time>
<X-Build-Os>${os.name}</X-Build-Os>
</manifestEntries>
</archive>
===================== %< ======================
With the $parsedVersion and $maven.version variables provided by the build-
helper plugin.
Cheers,
Jörg
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