automatic uploads to Sonatype

[danwallach]

Here's a script that doesn't seem to do the job:

uploadArchives {
    repositories {
        mavenDeployer {
            beforeDeployment { MavenDeployment deployment -> signing.signPom(deployment) }

            repository(url: "https://oss.sonatype.org/service/local/staging/deploy/maven2/") {
                authentication(userName: ossrhUsername, password: ossrhPassword)
            }

            snapshotRepository(url: "https://oss.sonatype.org/content/repositories/snapshots/") {
                authentication(userName: ossrhUsername, password: ossrhPassword)
            }

            pom.withXml { fixPomXml(it) }
        }
    }
}

Deleted for now since it was throwing errors on Travis (and I don't want to set up username/password environment variables there.).

If we're going to release versions of RiceChecks on a regular basis, we need to get the uploading process properly automated. Manual upload sucks.

[danwallach]

Seemingly helpful links and multiple possible solutions to the problem:
http://www.albertgao.xyz/2018/01/18/how-to-publish-artifact-to-maven-central-via-gradle/
https://medium.com/dot-debug/deploying-artifacts-to-maven-using-gradle-b669acc1b6f8

Various plugins:
https://github.com/bmuschko/gradle-nexus-plugin
https://github.com/Codearte/gradle-nexus-staging-plugin
https://github.com/marcphilipp/nexus-publish-plugin -- this seems to be the most straightforward

Possibly related, maybe not:
researchgate/gradle-release#244
Codearte/gradle-nexus-staging-plugin#76
-- specifically useful note: Codearte/gradle-nexus-staging-plugin#76 (comment)

Open question: whether we want Travis-CI to automatically publish snapshots. Probably good enough to do it with a local Gradle task.

[danwallach]

Or, maybe switch over to GitHub's alternative to OSS Sonatype? But data transfer costs are not free for private, although maybe free for public: https://github.com/features/packages