add clatch for uploading of publication

gradle/templates/publish.gradle

@@ -3,6 +3,7 @@ if (ext.getProperties()["do_publish"] == false) {
 }
 
 apply plugin: 'maven-publish'
+apply from: "$sonatype_upload"
 
 task javadocsJar(type: Jar) {
     archiveClassifier = 'javadoc'

gradle/templates/publish_jvm.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'maven-publish'
+apply from: "$sonatype_upload"
 
 task javadocJar(type: Jar) {
     from javadoc

gradle/templates/sonatype_upload.gradle

@@ -0,0 +1,47 @@
+import java.nio.charset.StandardCharsets
+import java.util.Base64
+import java.net.http.HttpClient
+import java.net.http.HttpRequest
+import java.net.http.HttpResponse
+
+if ((project.hasProperty('SONATYPE_USER') || System.getenv('SONATYPE_USER') != null) && (project.hasProperty('SONATYPE_PASSWORD') || System.getenv('SONATYPE_PASSWORD') != null)) {
+    def taskName = "uploadSonatypePublication"
+    if (rootProject.tasks.names.contains(taskName)) {
+        return
+    }
+    rootProject.tasks.register(taskName) {
+        doLast {
+            def username = project.hasProperty('SONATYPE_USER') ? project.property('SONATYPE_USER') : System.getenv('SONATYPE_USER')
+            def password = project.hasProperty('SONATYPE_PASSWORD') ? project.property('SONATYPE_PASSWORD') : System.getenv('SONATYPE_PASSWORD')
+            def bearer = Base64.getEncoder().encodeToString("$username:$password".getBytes(StandardCharsets.UTF_8))
+
+            def client = HttpClient.newHttpClient()
+            def request = HttpRequest.newBuilder()
+                    .uri(URI.create("https://ossrh-staging-api.central.sonatype.com/manual/search/repositories?state=open"))
+                    .GET()
+                    .header("Content-Type", "application/json")
+                    .header("Authorization", "Bearer $bearer")
+                    .build()
+
+            def response = client.send(request, HttpResponse.BodyHandlers.ofString())
+            def keys = new ArrayList<String>()
+            response.body().findAll("\"key\"[\\s]*:[\\s]*\"[^\"]+\"").forEach {
+                def key = it.find("[^\"]+\"\$").find("[^\"]+")
+                keys.add(key)
+            }
+            keys.forEach {
+                println("Start uploading $it")
+                def uploadRequest = HttpRequest.newBuilder()
+                        .uri(URI.create("https://ossrh-staging-api.central.sonatype.com/manual/upload/repository/$it?publishing_type=user_managed"))
+                        .POST(HttpRequest.BodyPublishers.ofString(""))
+                        .header("Content-Type", "application/json")
+                        .header("Authorization", "Bearer $bearer")
+                        .build()
+                def uploadResponse = client.send(uploadRequest, HttpResponse.BodyHandlers.ofString())
+                if (uploadResponse.statusCode() != 200) {
+                    throw IllegalStateException("Faced error of uploading for repo with key $it. Response: $uploadResponse")
+                }
+            }
+        }
+    }
+}