Add build hash to nodes info API

also, add it to the cat nodes api

src/main/java/org/elasticsearch/Build.java

@@ -21,9 +21,12 @@ package org.elasticsearch;
 
 import org.elasticsearch.common.io.FastStringReader;
 import org.elasticsearch.common.io.Streams;
+import org.elasticsearch.common.io.stream.StreamInput;
+import org.elasticsearch.common.io.stream.StreamOutput;
 import org.joda.time.DateTimeZone;
 import org.joda.time.format.ISODateTimeFormat;
 
+import java.io.IOException;
 import java.util.Properties;
 
 /**
@@ -77,4 +80,17 @@ public class Build {
     public String timestamp() {
         return timestamp;
     }
+
+    public static Build readBuild(StreamInput in) throws IOException {
+        String hash = in.readString();
+        String hashShort = in.readString();
+        String timestamp = in.readString();
+        return new Build(hash, hashShort, timestamp);
+    }
+
+    public static void writeBuild(Build build, StreamOutput out) throws IOException {
+        out.writeString(build.hash());
+        out.writeString(build.hashShort());
+        out.writeString(build.timestamp());
+    }
 }

src/main/java/org/elasticsearch/action/admin/cluster/node/info/NodeInfo.java

@@ -20,6 +20,7 @@
 package org.elasticsearch.action.admin.cluster.node.info;
 
 import com.google.common.collect.ImmutableMap;
+import org.elasticsearch.Build;
 import org.elasticsearch.Version;
 import org.elasticsearch.action.support.nodes.NodeOperationResponse;
 import org.elasticsearch.cluster.node.DiscoveryNode;
@@ -51,6 +52,7 @@ public class NodeInfo extends NodeOperationResponse {
     private String hostname;
 
     private Version version;
+    private Build build;
 
     @Nullable
     private Settings settings;
@@ -82,12 +84,13 @@ public class NodeInfo extends NodeOperationResponse {
     NodeInfo() {
     }
 
-    public NodeInfo(@Nullable String hostname, Version version, DiscoveryNode node, @Nullable ImmutableMap<String, String> serviceAttributes, @Nullable Settings settings,
+    public NodeInfo(@Nullable String hostname, Version version, Build build, DiscoveryNode node, @Nullable ImmutableMap<String, String> serviceAttributes, @Nullable Settings settings,
                     @Nullable OsInfo os, @Nullable ProcessInfo process, @Nullable JvmInfo jvm, @Nullable ThreadPoolInfo threadPool, @Nullable NetworkInfo network,
                     @Nullable TransportInfo transport, @Nullable HttpInfo http, @Nullable PluginsInfo plugins) {
         super(node);
         this.hostname = hostname;
         this.version = version;
+        this.build = build;
         this.serviceAttributes = serviceAttributes;
         this.settings = settings;
         this.os = os;
@@ -115,6 +118,13 @@ public class NodeInfo extends NodeOperationResponse {
         return version;
     }
 
+    /**
+     * The build version of the node.
+     */
+    public Build getBuild() {
+        return this.build;
+    }
+
     /**
      * The service attributes of the node.
      */
@@ -196,6 +206,7 @@ public class NodeInfo extends NodeOperationResponse {
             hostname = in.readString();
         }
         version = Version.readVersion(in);
+        build = Build.readBuild(in);
         if (in.readBoolean()) {
             ImmutableMap.Builder<String, String> builder = ImmutableMap.builder();
             int size = in.readVInt();
@@ -243,6 +254,7 @@ public class NodeInfo extends NodeOperationResponse {
             out.writeString(hostname);
         }
         out.writeVInt(version.id);
+        Build.writeBuild(build, out);
         if (getServiceAttributes() == null) {
             out.writeBoolean(false);
         } else {

src/main/java/org/elasticsearch/action/admin/cluster/node/info/NodesInfoResponse.java

@@ -84,9 +84,8 @@ public class NodesInfoResponse extends NodesOperationResponse<NodeInfo> implemen
                 builder.field("hostname", nodeInfo.getHostname(), XContentBuilder.FieldCaseConversion.NONE);
             }
 
-            if (nodeInfo.getVersion() != null) {
             builder.field("version", nodeInfo.getVersion());
-            }
+            builder.field("build", nodeInfo.getBuild().hashShort());
 
             if (nodeInfo.getServiceAttributes() != null) {
                 for (Map.Entry<String, String> nodeAttribute : nodeInfo.getServiceAttributes().entrySet()) {

src/main/java/org/elasticsearch/node/service/NodeService.java

@@ -20,6 +20,7 @@
 package org.elasticsearch.node.service;
 
 import com.google.common.collect.ImmutableMap;
+import org.elasticsearch.Build;
 import org.elasticsearch.Version;
 import org.elasticsearch.action.admin.cluster.node.info.NodeInfo;
 import org.elasticsearch.action.admin.cluster.node.stats.NodeStats;
@@ -115,7 +116,7 @@ public class NodeService extends AbstractComponent {
     }
 
     public NodeInfo info() {
-        return new NodeInfo(hostname, version, disovery.localNode(), serviceAttributes,
+        return new NodeInfo(hostname, version, Build.CURRENT, disovery.localNode(), serviceAttributes,
                 settings,
                 monitorService.osService().info(),
                 monitorService.processService().info(),
@@ -130,7 +131,7 @@ public class NodeService extends AbstractComponent {
 
     public NodeInfo info(boolean settings, boolean os, boolean process, boolean jvm, boolean threadPool,
                          boolean network, boolean transport, boolean http, boolean plugin) {
-        return new NodeInfo(hostname, version, disovery.localNode(), serviceAttributes,
+        return new NodeInfo(hostname, version, Build.CURRENT, disovery.localNode(), serviceAttributes,
                 settings ? this.settings : null,
                 os ? monitorService.osService().info() : null,
                 process ? monitorService.processService().info() : null,

src/main/java/org/elasticsearch/rest/action/cat/RestNodesAction.java

@@ -127,7 +127,8 @@ public class RestNodesAction extends AbstractCatAction {
         table.addCell("ip", "desc:ip address");
         table.addCell("port", "desc:bound transport port");
 
-        table.addCell("es", "default:false;desc:es version");
+        table.addCell("version", "default:false;desc:es version");
+        table.addCell("build", "default:false;desc:es build hash");
         table.addCell("jdk", "default:false;desc:jdk version");
         table.addCell("diskAvail", "default:false;text-align:right;desc:available disk space");
         table.addCell("heapPercent", "text-align:right;desc:used heap ratio");
@@ -162,6 +163,7 @@ public class RestNodesAction extends AbstractCatAction {
             table.addCell(((InetSocketTransportAddress) node.address()).address().getPort());
 
             table.addCell(info == null ? null : info.getVersion().number());
+            table.addCell(info == null ? null : info.getBuild().hashShort());
             table.addCell(info == null ? null : info.getJvm().version());
             table.addCell(stats == null ? null : stats.getFs() == null ? null : stats.getFs().total().getAvailable());
             table.addCell(stats == null ? null : stats.getJvm().getMem().getHeapUsedPrecent());