Add OpenSearch build script

Signed-off-by: Sooraj Sinha <[email protected]>

build.gradle

@@ -27,9 +27,16 @@ import java.util.stream.Collectors
 import org.opensearch.gradle.testclusters.OpenSearchCluster
 
 buildscript {
+
     ext {
-        opensearch_version = System.getProperty("opensearch_version", "1.1.0")
+        isSnapshot = "true" == System.getProperty("build.snapshot", "false")
+        opensearch_version = System.getProperty("opensearch.version", "1.1.0")
+        // Taken from https://github.com/opensearch-project/alerting/blob/main/build.gradle#L33
+        // 1.0.0 -> 1.0.0.0, and 1.0.0-SNAPSHOT -> 1.0.0.0-SNAPSHOT
+        opensearch_build = opensearch_version.replaceAll(/(\.\d)([^\d]*)$/, '$1.0$2')
+        common_utils_version = System.getProperty("common_utils.version", opensearch_build)
         kotlin_version = System.getProperty("kotlin.version", "1.3.72")
+
     }
 
     repositories {
@@ -47,12 +54,18 @@ buildscript {
     }
 }
 
-
 plugins {
     id 'nebula.ospackage' version "8.3.0"
     id "com.dorongold.task-tree" version "1.5"
 }
 
+allprojects {
+    group = "org.opensearch"
+    if (isSnapshot) {
+        version += "-SNAPSHOT"
+    }
+}
+
 apply plugin: 'java'
 //apply plugin: 'jacoco'
 apply plugin: 'idea'
@@ -93,7 +106,7 @@ dependencies {
     compile "org.jetbrains:annotations:13.0"
     compile "com.github.seancfoley:ipaddress:5.3.3"
     compile "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.5"
-    compile "org.opensearch:common-utils:${version}"
+    compile "org.opensearch:common-utils:${common_utils_version}"
 
     testCompile "org.opensearch.test:framework:${opensearch_version}"
     testImplementation "org.assertj:assertj-core:3.17.2"
@@ -107,6 +120,7 @@ repositories {
     mavenLocal()
     mavenCentral()
     maven { url "https://plugins.gradle.org/m2/" }
+    jcenter()
 }
 
 compileKotlin {
@@ -135,6 +149,12 @@ opensearchplugin {
     classname = "org.opensearch.replication.ReplicationPlugin"
 }
 
+java {
+    if (!isSnapshot) {
+        withJavadocJar()
+        withSourcesJar()
+    }
+}
 
 javadoc.enabled = false
 licenseHeaders.enabled = false