Gradle script for publishing Android library to local Maven repository using maven-publish plugin. With dependencies (also handling transitive: false and custom exclude rules), including sources and javadoc.

publishMavenLocal.gradle

apply plugin: 'maven-publish'

task androidJavadocs(type: Javadoc) {
	source = android.sourceSets.main.java.srcDirs
	classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
	android.libraryVariants.all { variant ->
		if (variant.name == 'release') {
			owner.classpath += variant.javaCompile.classpath
		}
	}
	exclude '**/R.html', '**/R.*.html', '**/index.html'
}

task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
	classifier = 'javadoc'
	from androidJavadocs.destinationDir
}

task androidSourcesJar(type: Jar) {
	classifier = 'sources'
	from android.sourceSets.main.java.srcDirs
}

publishing {
	publications {
		maven(MavenPublication) {
			//groupId 'cz.example'
			//artifactId 'custom-artifact'
			//version = android.defaultConfig.versionName

			artifact bundleReleaseAar
			artifact androidJavadocsJar
			artifact androidSourcesJar

			pom.withXml {
				final dependenciesNode = asNode().appendNode('dependencies')

				ext.addDependency = { Dependency dep, String scope ->
					if (dep.group == null || dep.version == null || dep.name == null || dep.name == "unspecified")
						return // ignore invalid dependencies

					final dependencyNode = dependenciesNode.appendNode('dependency')
					dependencyNode.appendNode('groupId', dep.group)
					dependencyNode.appendNode('artifactId', dep.name)
					dependencyNode.appendNode('version', dep.version)
					dependencyNode.appendNode('scope', scope)

					if (!dep.transitive) {
						// If this dependency is transitive, we should force exclude all its dependencies them from the POM
						final exclusionNode = dependencyNode.appendNode('exclusions').appendNode('exclusion')
						exclusionNode.appendNode('groupId', '*')
						exclusionNode.appendNode('artifactId', '*')
					} else if (!dep.properties.excludeRules.empty) {
						// Otherwise add specified exclude rules
						final exclusionNode = dependencyNode.appendNode('exclusions').appendNode('exclusion')
						dep.properties.excludeRules.each { ExcludeRule rule ->
							exclusionNode.appendNode('groupId', rule.group ?: '*')
							exclusionNode.appendNode('artifactId', rule.module ?: '*')
						}
					}
				}

				// List all "compile" dependencies (for old Gradle)
				configurations.compile.getDependencies().each { dep -> addDependency(dep, "compile") }
				// List all "api" dependencies (for new Gradle) as "compile" dependencies
				configurations.api.getDependencies().each { dep -> addDependency(dep, "compile") }
				// List all "implementation" dependencies (for new Gradle) as "runtime" dependencies
				configurations.implementation.getDependencies().each { dep -> addDependency(dep, "runtime") }
			}
		}
	}
}