Enable snapshot publishing

ci/snapshot-publish/Jenkinsfile

@@ -0,0 +1,70 @@
+/*
+ * SPDX-License-Identifier: Apache-2.0
+ * Copyright Red Hat Inc. and Hibernate Authors
+ */
+
+@Library('hibernate-jenkins-pipeline-helpers') _
+
+// Avoid running the pipeline on branch indexing
+if (currentBuild.getBuildCauses().toString().contains('BranchIndexingCause')) {
+	print "INFO: Build skipped due to trigger being Branch Indexing"
+	currentBuild.result = 'NOT_BUILT'
+	return
+}
+
+pipeline {
+	agent {
+		label 'Release'
+	}
+	tools {
+		maven 'Apache Maven 3.9'
+		jdk 'OpenJDK 17 Latest'
+	}
+	options {
+		// Wait for 1h before publishing snapshots, in case there's more commits.
+		quietPeriod 3600
+		// In any case, never publish snapshots more than once per hour.
+		rateLimitBuilds(throttle: [count: 1, durationName: 'hour', userBoost: true])
+
+		buildDiscarder(logRotator(numToKeepStr: '3', artifactNumToKeepStr: '3'))
+		disableConcurrentBuilds(abortPrevious: false)
+	}
+	stages {
+		stage('Publish') {
+			steps {
+				script {
+					withMaven(mavenSettingsConfig: 'ci-hibernate.deploy.settings.maven', mavenLocalRepo: env.WORKSPACE_TMP + '/.m2repository') {
+						withCredentials([// TODO: Once we switch to maven-central publishing (from nexus2) we need to add a new credentials
+										 //  to use the following env variable names to set the user/password:
+										 //  JRELEASER_MAVENCENTRAL_USERNAME
+										 //  JRELEASER_MAVENCENTRAL_TOKEN
+										 usernamePassword(credentialsId: 'ossrh.sonatype.org', passwordVariable: 'JRELEASER_NEXUS2_PASSWORD', usernameVariable: 'JRELEASER_NEXUS2_USERNAME'),
+										 string(credentialsId: 'Hibernate-CI.github.com', variable: 'JRELEASER_GITHUB_TOKEN')]) {
+							dir('.release/scripts') {
+								sh 'git clone https://github.com/hibernate/hibernate-release-scripts.git .'
+							}
+							def version = sh(
+									script: ".release/scripts/determine-current-version.sh infra-theme",
+									returnStdout: true
+							).trim()
+
+							echo "Current version: '${version}'"
+
+							env.JRELEASER_DRY_RUN=true
+						 	sh "bash -xe .release/scripts/snapshot-deploy.sh infra-theme ${version}"
+
+							sh "rm target/staging-deploy/maven/org/hibernate/infra/hibernate-asciidoctor-theme/maven-metadata.xml*"
+							env.JRELEASER_DRY_RUN=false
+							sh ".release/scripts/jreleaser/bin/jreleaser full-release -Djreleaser.project.version="$VERSION""
+						}
+					}
+				}
+			}
+		}
+	}
+	post {
+		always {
+			notifyBuildResult notifySuccessAfterSuccess: false, maintainers: 'marko@hibernate.org'
+		}
+	}
+}