Add publishingType option

[eriksencosta]

The plugin, by default, publishes the jar to Central once it is validated. However, some library maintainers may want to publish it manually, as Maven has a policy of never deleting a jar once it's published.

This pull request introduces a new option to sonatypeCentralUpload task: publishingType. To prevent breaking previous users of the plugin, the option may be omitted. If omitted, it will continue behaving as the plugin behaves currently: it will publish the jar once it's validated:

sonatypeCentralUpload {
    username = "your-username"
    password = "your-password"

    archives = files(/*...*/)
    pom = file("path/to/pom.xml")

    signingKey = "--BEGIN PGP PRIVATE KEY BLOCK--"
    signingKeyPassphrase = "..."
    publicKey = "--BEGIN PGP PUBLIC KEY BLOCK--"

    publishingType = "MANUAL"
}

I've tested the plugin using Maven local. However, as I'm not the owner of the cl.franciscosolis on Central, my test always fails as initPublishingProcess throws an IllegalStateException when deploymentStatus returns FAILED.

[Im-Fran]

It's a great idea, thanks for the contribution!

[eriksencosta]

@Im-Fran I forgot to add, but I found that the syntax to set the plugin changed since v1.0.0, from:

sonatypeCentralUpload {
  // setup code
}

To:

tasks.named<SonatypeCentralUploadTask>("sonatypeCentralUpload") {
  // setup code
}

I can't make the former work.

[Im-Fran]

@eriksencosta you have to use it inside the tasks tag, like this:

tasks {
    sonatypeCentralUpload {
        // ....
    }
}