[gradle-user] Java build, with a custom jar task for obfuscating class files (optionally)

[Sean Van Buggenum]

Hi all,

I've been just now learning how to use the java plugin for building a java
application.
I am migrating from ant, and in the existing ant files, an application
'Zelix' is used to obfuscate the class files before creating the jar.
In fact, there are two tasks; One in which the jar is built from the
original class files, and another where the another (production) jar is
built from the obfuscated class files.

So, given that I wanted to be able to keep the original structure of the
projects as is, i've modified the basic gradle build file (the one liner)
in order to conform to the existing file structure, as well as include the
manifest that is provided (see example below).

However, now I need to get Zelix into the picture, to;

1. Invoke zelix on the class files generated by the normal build process,
generating a parallel set of obfuscated class files
2. build two jar files, one based on the obfuscated files, the other based
on the non-obfuscated files.

I am finding it difficult to discover how best to customize the jar task in
order to 'most easily' achieve this.

Anyone got any advice for me? (not obfuscating is unfortunately not an
option... i'd like not to bother,... but am forced to).

here is my current build file:

---------------------------------
 apply plugin: 'java'

sourceSets {
    main {
        java {
            srcDir 'src'
        }
        resources {
            srcDir 'src'
        }
    }
}

jar {
    manifest {
 from("src/META-INF/MANIFEST.MF")
    }
}

-------------

thanks in advance!

sean