CODEWITHSUNDEEP
gradlebuildantsign
Rob Gorman
Rob Gorman

Reputation: 3694

Convert ant signJar task to gradle

I'm converting an ant build script to gradle. As part of the ant steps the .jar file being created is signed. The ant sign target looks like:

<signjar alias="${keystore.alias}" keystore="${keystore.file}" storepass="${keystore.password}" >
        <path>
            <fileset dir="${build.jars.dir}" includes="xxx-1.0-SNAP.jar"/>
        </path>
</signjar>

In my gradle build I have

apply plugin 'signing'

...
task signJar(type: SignJar, dependsOn: reobfJar) {
    keyStore = 'certs/keystore.jks'
    alias = 'somealias'
    storePass = 'somepassword'
    keyPass = 'somepassword'
    inputFile = 'build/libs/xxx-1.0-SNAP.jar'            <<< these lines
    outputFile = 'build/libs/xxx-1.0-SNAP_signed.jar'    <<< give error
}

build.dependsOn signJar

The error message for the inputFile and outputFile lines is "Cannot assign string to Class < InputFile > ". I can't figure out how to correctly make this assignment. (As you may have guessed I'm not a gradle expert). How do I make the assigment of the jar I'm building to inputFile and the new jar name I want to output file?

Upvotes: 2

Views: 1632

Answers (1)

Rob Gorman
Rob Gorman

Reputation: 3694

I figured out how to do this. Here's the task that I was able to put in my build.gradle file. It doesn't require any new plugin (I'm currently using the 'java' plugin, but I don't know if this task depends upon that.)

Although this shows specific settings and paths for my build envt, I think its easy enough to modify for your needs. 

task signJar <<{

        def signdir  = new File("$buildDir/jars/signed")
        signdir.mkdirs()

        ant.signjar(
                destDir: "${signdir.absolutePath}",
                jar: 'build/libs/*.jar',
                alias:'somealias',
                storetype:"jks",
                keystore:"certs/keystore.jks",
                storepass:'somepassword',
                verbose:true,
                preservelastmodified:"true"
        )

}

build.dependsOn signJar

Upvotes: 2

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