Publish .md5 and .sha1 signatures. (#79)

build.gradle

@@ -148,6 +148,11 @@ shadowJar {
     classifier = null
 }
 
+shadowJar.doLast {
+    ant.checksum algorithm: 'md5', file: it.archivePath
+    ant.checksum algorithm: 'sha1', file: it.archivePath
+}
+
 task sourcesJar(type: Jar) {
     classifier = 'sources'
     from sourceSets.main.allJava
@@ -197,9 +202,4 @@ publishing {
 
     gradle.startParameter.setShowStacktrace(ShowStacktrace.ALWAYS)
     gradle.startParameter.setLogLevel(LogLevel.DEBUG)
-
-    signing {
-        required { gradle.taskGraph.hasTask("publishShadowPublicationToSonatype-stagingRepository") }
-        sign publishing.publications.shadow
-    }
 }

scripts/build.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# Copyright OpenSearch Contributors.
+# SPDX-License-Identifier: Apache-2.0
+
+set -ex
+
+function usage() {
+    echo "Usage: $0 [args]"
+    echo ""
+    echo "Arguments:"
+    echo -e "-v VERSION\t[Required] OpenSearch version."
+    echo -e "-s SNAPSHOT\t[Optional] Build a snapshot, default is 'false'."
+    echo -e "-a ARCHITECTURE\t[Optional] Build architecture, ignored."
+    echo -e "-o OUTPUT\t[Optional] Output path, default is 'artifacts'."
+    echo -e "-h help"
+}
+
+while getopts ":h:v:s:o:a:" arg; do
+    case $arg in
+        h)
+            usage
+            exit 1
+            ;;
+        v)
+            VERSION=$OPTARG
+            ;;
+        s)
+            SNAPSHOT=$OPTARG
+            ;;
+        o)
+            OUTPUT=$OPTARG
+            ;;
+        a)
+            ARCHITECTURE=$OPTARG
+            ;;
+        :)
+            echo "Error: -${OPTARG} requires an argument"
+            usage
+            exit 1
+            ;;
+        ?)
+            echo "Invalid option: -${arg}"
+            exit 1
+            ;;
+    esac
+done
+
+if [ -z "$VERSION" ]; then
+    echo "Error: You must specify the OpenSearch version"
+    usage
+    exit 1
+fi
+
+[[ "$SNAPSHOT" == "true" ]] && VERSION=$VERSION-SNAPSHOT
+[ -z "$OUTPUT" ] && OUTPUT=artifacts
+
+./gradlew build -Dopensearch.version=$VERSION -Dbuild.snapshot=$SNAPSHOT
+./gradlew publishShadowPublicationToMavenLocal -Dopensearch.version=$VERSION -Dbuild.snapshot=$SNAPSHOT
+mkdir -p $OUTPUT/maven/org/opensearch
+cp -r ./build/libs $OUTPUT/maven/org/opensearch/common-utils