Add Implementation details to MANIFEST.MF in the produced war

you want this in all the Archiva manifest files, or just the webapp?

It's a pretty simple config option for the archiver I think.

It is good practice to definatively label/version everything. However, for my purposes, I only need the war file itself versioned. Then I can do this:

JarFile jf = new JarFile("archiva.war");
Manifest manifest = jf.getManifest();
jf.close();
String implementationVersion = manifest.getMainAttributes().getValue("Implementation-Version");
System.out.println("implementationVersion = " + implementationVersion);

I know that archiva is distributed as a versioned named war file, but I can not rely upon people not renaming it.

Yes, it's trivially simple to do:

<configuration>
<archive>
<addMavenDescriptor>true/addMavenDescriptor>
<manifest>
<addDefaultImplementationEntries>true</addDefaultImplementationEntries>
<addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
</manifest>
</archive>
</configuration>

This patch is for pom.xml to added in the default implentation entries. Tested against the current (M2-SNAPSHOT) trunk.

Thanks for the patch.