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How to create fat jar after reobfJar?


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Hi,

I am trying to get HikariCP bundled with my mod as a one fat jar. But there is a problem where HikariCP causes reobfJar to fail with InvalidArgumentException, and I'm not sure why.

Here is my gradle code right now (I left out a lot of stuff which I don't think matters):
 

configurations {
    embed
}

dependencies {
    minecraft 'net.minecraftforge:forge:1.16.5-36.1.0'
	embed group: 'com.zaxxer', name: 'HikariCP', version: '4.0.3'
    compileOnly group: 'com.ea.async', name: 'ea-async', version: '1.2.3'
}

jar {
    from configurations.embed.collect{ it.isDirectory() ? it : zipTree(it) }
    manifest {
        attributes([
                "Specification-Title": "examplemod",
                "Specification-Vendor": "examplemodsareus",
                "Specification-Version": "1", // We are version 1 of ourselves
                "Implementation-Title": project.name,
                "Implementation-Version": "${version}",
                "Implementation-Vendor" :"examplemodsareus",
                "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")
        ])
    }
}

jar.finalizedBy('reobfJar')

 

As I understand, this is the current order of events:

  1. `jar` task to run, which will bundle all the dependencies marked with `embed`, which will create the fat jar
  2. `reobfJar` will run on that fat jar.


Would I would like to do instead is this order of events:

  1. `jar` task to run, but no fat jar is created at this time.
  2. `reobfJar` will run on the output of `jar`.
  3. A new task runs, which will take the output of `reobfJar` and combine it with the dependencies marked with `embed` to create the one fat jar

 

I think the code would look something like this:
 

jar {
    manifest {
        attributes([
            "Specification-Title": "examplemod",
            "Specification-Vendor": "examplemodsareus",
            "Specification-Version": "1", // We are version 1 of ourselves
            "Implementation-Title": project.name,
            "Implementation-Version": "${version}",
            "Implementation-Vendor" :"examplemodsareus",
            "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")
        ])
    }
}

jar.finalizedBy('reobfJar')

task bundle(type: Jar) {
    manifest {
        attributes 'Main-Class': 'com.gluecode.fpvdrone.server.Main'
    }
    from "build/libs/modid-1.0.jar"
    from configurations.embed.collect{ it.isDirectory() ? it : zipTree(it) }
}


The problems I have with the above is:

  1. I have to run `./gradlew bundle` after running `./gradlew buildNeeded`. And I'd like to just run 1 command.
  2. It doesn't work because it results in an invalid mod jar.

I'm am still learning gradle. Can anyone help me?

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shadowJar creates a new jar task.

You need to use reobf { shadowJar } and then shadowJar.finalizedBy('reobfShadowJar') like the default buildscript already does for the normal Jar task.

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