publish to maven central directly (#178)

issue #177
using signing and publish plugin:
https://github.com/gradle-nexus/publish-plugin

Author: oshai

.travis.yml

@@ -7,16 +7,12 @@ dist: trusty
 
 stages:
 - name: build
-- name: snapshot
-  if: branch IN (master, pre-snapshot, 1.x-snapshot) AND type = push
 - name: release
-  if: branch IN (release, 1.x) AND type = push
+  if: branch IN (release) AND type = push
 
 jobs:
     include:
     - stage: build
       script: ./gradlew clean build
-    - stage: snapshot
-      script: ./gradlew clean build artifactoryPublish -Dsnapshot=true -Dbintray.user=$BINTRAY_USER -Dbintray.key=$BINTRAY_API_KEY -Dbuild.number=$TRAVIS_BUILD_NUMBER
     - stage: release
-      script: ./gradlew clean build publishAllPublicationsToBintrayRepository -Dbintray.user=$BINTRAY_USER -Dbintray.key=$BINTRAY_API_KEY -Dbuild.number=$TRAVIS_BUILD_NUMBER -Dmaven.password=$MAVEN_PASSWORD -Dmaven.user=$MAVEN_USER
+      script: ./gradlew clean build publishToSonatype closeAndReleaseSonatypeStagingRepository -no-daemon --no-parallel -x test

build.gradle.kts

@@ -1,20 +1,30 @@
 plugins {
     kotlin("multiplatform") version "1.4.31"
     id("org.jetbrains.dokka") version "1.4.0"
-    id("com.jfrog.artifactory") version "4.17.2"
     `maven-publish`
+    id("io.github.gradle-nexus.publish-plugin") version "1.1.0"
+    signing
 }
 
 apply("versions.gradle.kts")
 
 group = "io.github.microutils"
-version = "2.0.8" + (if (System.getProperty("snapshot")?.toBoolean() == true) "-SNAPSHOT" else "")
+version = "2.0.8"
 
 repositories {
-    jcenter()
     mavenCentral()
 }
 
+nexusPublishing {
+    repositories {
+        sonatype()
+    }
+}
+
+apply(plugin = "io.github.gradle-nexus.publish-plugin")
+apply(plugin = "maven-publish")
+apply(plugin = "signing")
+
 kotlin {
     explicitApi()
     jvm {
@@ -124,77 +134,9 @@ publishing {
     }
 }
 
-publishing {
-    val bintrayOrg = "microutils"
-    val bintrayRepo = "kotlin-logging"
-    val bintrayUser = System.getProperty("bintray.user")
-    val bintrayApiKey = System.getProperty("bintray.key")
-
-    if (bintrayUser != null && bintrayApiKey != null) {
-        repositories {
-            maven {
-                name = "bintray"
-                url = uri(
-                    "https://api.bintray.com/maven/$bintrayOrg/$bintrayRepo/${project.name}/;publish=1;override=1"
-                )
-                credentials {
-                    username = bintrayUser
-                    password = bintrayApiKey
-                }
-            }
-        }
-    }
-}
-
-//bintray {
-//    user = System.getProperty("bintray.user")
-//    key = System.getProperty("bintray.key") //https://bintray.com/profile/edit
-//    setPublications(*publishing.publications.names.toTypedArray())
-//    publish = true //[Default: false] Whether version should be auto published after an upload
-//    pkg.apply {
-//        repo = "kotlin-logging"
-//        name = "kotlin-logging"
-//        userOrg = "microutils"
-//        setLicenses("Apache-2.0")
-//        vcsUrl = "https://github.com/MicroUtils/kotlin-logging"
-//        websiteUrl = "https://github.com/MicroUtils/kotlin-logging"
-//        issueTrackerUrl = "https://github.com/MicroUtils/kotlin-logging/issues"
-//
-//        githubRepo = "MicroUtils/kotlin-logging"
-//        githubReleaseNotesFile = "ChangeLog.md"
-//        version.apply {
-//            name = "${project.version}"
-//            desc = "kotlin-logging - Lightweight logging framework for Kotlin"
-//            released = "${Date()}"
-//            gpg.sign = true //Determines whether to GPG sign the files. The default is false
-//            mavenCentralSync.apply {
-//                sync = true //[Default: true] Determines whether to sync the version to Maven Central.
-//                user = System.getProperty("maven.user") //OSS user token: mandatory
-//                password = System.getProperty("maven.password") //OSS user password: mandatory
-//                close =
-//                    "1" //Optional property. By default the staging repository is closed and artifacts are released to Maven Central. You can optionally turn this behaviour off (by puting 0 as value) and release the version manually.
-//            }
-//        }
-//    }
-//}
-
-artifactory {
-    setContextUrl("http://oss.jfrog.org")
-    publish(delegateClosureOf<org.jfrog.gradle.plugin.artifactory.dsl.PublisherConfig> {
-        repository(delegateClosureOf<groovy.lang.GroovyObject> {
-            setProperty("repoKey", "oss-snapshot-local")
-            setProperty("username", System.getProperty("bintray.user"))
-            setProperty("password", System.getProperty("bintray.key"))
-            setProperty("maven", true)
-        })
-        defaults(delegateClosureOf<groovy.lang.GroovyObject> {
-            invokeMethod("publications", publishing.publications.names.toTypedArray())
-            setProperty("publishArtifacts", true)
-            setProperty("publishPom", true)
-        })
-    })
-    resolve(delegateClosureOf<org.jfrog.gradle.plugin.artifactory.dsl.ResolverConfig> {
-        setProperty("repoKey", "jcenter")
-    })
-    clientConfig.info.buildNumber = System.getProperty("build.number")
+signing {
+    val signingKey: String? by project
+    val signingPassword: String? by project
+    useInMemoryPgpKeys(signingKey, signingPassword)
+    sign(publishing.publications)
 }