Fix maven central publishing

The `io.codearte.gradle.nexus:gradle-nexus-staging-plugin` was failing on the close and release step of sonatype publishing. This switches to using `io.github.gradle-nexus.publish-plugin` that handles this and the whole sonatype publishing more gracefully.

Author: botnerd

.github/workflows/publish-release.yml

@@ -24,4 +24,4 @@ jobs:
         env:
           GITHUB_SECRET_PASSPHRASE: ${{ secrets.SECRETS_TAR_PASSPHRASE }}
       - name: Publish to MavenCentral
-        run: ./gradlew --info bundleReleaseAar publishReleasePublicationToSonatypeRepository closeAndReleaseRepository
+        run: ./gradlew bundleReleaseAar publishToSonatype closeAndReleaseSonatypeStagingRepository

build.gradle

@@ -1,5 +1,4 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
-
 buildscript {
     ext {
         sdkCompileVersion = 28
@@ -74,16 +73,15 @@ buildscript {
         classpath 'com.android.tools.build:gradle:4.1.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
 
-        // Maven Central publishing
-        classpath 'com.vanniktech:gradle-maven-publish-plugin:0.13.0'
-        classpath 'org.jetbrains.dokka:dokka-gradle-plugin:1.4.10.2'
-        classpath 'io.codearte.gradle.nexus:gradle-nexus-staging-plugin:0.22.0'
-
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
 }
 
+plugins {
+    id("io.github.gradle-nexus.publish-plugin") version "1.0.0"
+}
+
 allprojects {
     repositories {
         jcenter()
@@ -106,4 +104,23 @@ subprojects {
     tasks.withType(Javadoc).all { enabled = false }
 }
 
-apply plugin: 'io.codearte.nexus-staging'
+File ossrhProp = project.rootProject.file('ossrh.properties')
+if (ossrhProp.exists()) {
+    Properties p = new Properties()
+    p.load(new FileInputStream(ossrhProp))
+    p.each { name, value ->
+        ext[name] = value
+    }
+
+    group coreGroupId
+    version coreVersion
+
+    nexusPublishing {
+        repositories {
+            sonatype {
+                username = ossrhUsername
+                password = ossrhPassword
+            }
+        }
+    }
+}

ossrh.gradle

@@ -72,35 +72,10 @@ if (ossrhProp.exists()) {
                 }
             }
         }
-        repositories {
-            // The repository to publish to, Sonatype/MavenCentral
-            maven {
-                // This is an arbitrary name, you may also use "mavencentral" or
-                // any other name that's descriptive for you
-                name = "sonatype"
-
-                def releasesRepoUrl = "https://oss.sonatype.org/service/local/staging/deploy/maven2/"
-                def snapshotsRepoUrl = "https://oss.sonatype.org/content/repositories/snapshots/"
-                // You only need this if you want to publish snapshots, otherwise just set the URL
-                // to the release repo directly
-                url = version.endsWith('SNAPSHOT') ? snapshotsRepoUrl : releasesRepoUrl
-
-                // The username and password we've fetched earlier
-                credentials {
-                    username ossrhUsername
-                    password ossrhPassword
-                }
-            }
-        }
     }
     signing {
         sign publishing.publications
     }
 
-    nexusStaging {
-        packageGroup publishGroupId
-        stagingProfileId stagingProfileId
-        username ossrhUsername
-        password ossrhPassword
-    }
+
 }