[FIXED JENKINS-9126] added 'set-build-displayname' CLI command.

changelog.html

@@ -77,6 +77,9 @@ Upcoming changes</a>
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-10414">issue 10414</a>)
   <li class=rfe>
     Added a dignosis CLI command to report the current granted authorities.
+  <li class=rfe>
+    Added a CLI command to set display name of the build
+    (<a href="https://issues.jenkins-ci.org/browse/JENKINS-9126">issue 9126</a>)
   <li class=rfe>
     Added an option in CLI build command to check for SCM changes before carrying out a build
     (<a href="https://issues.jenkins-ci.org/browse/JENKINS-9968">issue 9968</a>)

core/src/main/java/hudson/cli/SetBuildDisplayNameCommand.java

+package hudson.cli;
+
+import hudson.Extension;
+import hudson.model.AbstractProject;
+import hudson.model.Run;
+import hudson.remoting.Callable;
+import org.apache.commons.io.IOUtils;
+import org.kohsuke.args4j.Argument;
+
+import java.io.IOException;
+import java.io.Serializable;
+
+@Extension
+public class SetBuildDisplayNameCommand extends CLICommand implements Serializable {
+
+    @Override
+    public String getShortDescription() {
+        return "Sets the displayName of a build";
+    }
+
+    @Argument(metaVar="JOB", usage="Name of the job to build", required=true, index=0)
+    public transient AbstractProject<?, ?> job;
+
+    @Argument(metaVar="BUILD#", usage="Number of the build", required=true, index=1)
+    public int number;
+
+    @Argument(metaVar="DISPLAYNAME", required=true, usage="DisplayName to be set. '-' to read from stdin.", index=2)
+    public String displayName;
+
+    protected int run() throws Exception {
+        Run run = job.getBuildByNumber(number);
+        run.checkPermission(Run.UPDATE);
+
+        if ("-".equals(displayName)) {
+            displayName = channel.call(new Callable<String, IOException>() {
+                public String call() throws IOException {
+                    return IOUtils.toString(System.in);
+                }
+            });
+        }
+
+        run.setDisplayName(displayName);
+
+        return 0;
+    }
+
+}