From 8fc95a568916565efc31174e123d71ede91467b6 Mon Sep 17 00:00:00 2001
From: Sebastian Sdorra <sebastian.sdorra@cloudogu.com>
Date: Sat, 14 May 2011 16:16:11 +0200
Subject: [PATCH] added help option to SubCommand

---
 .../main/java/sonia/scm/cli/SubCommand.java   | 20 ++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/scm-clients/scm-cli-client/src/main/java/sonia/scm/cli/SubCommand.java b/scm-clients/scm-cli-client/src/main/java/sonia/scm/cli/SubCommand.java
index 06cbc8d9ba..1cfd5aa463 100644
--- a/scm-clients/scm-cli-client/src/main/java/sonia/scm/cli/SubCommand.java
+++ b/scm-clients/scm-cli-client/src/main/java/sonia/scm/cli/SubCommand.java
@@ -37,6 +37,7 @@ package sonia.scm.cli;
 
 import org.kohsuke.args4j.CmdLineException;
 import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.Option;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -98,7 +99,16 @@ public abstract class SubCommand
     try
     {
       parser.parseArgument(args);
-      run();
+
+      if (help)
+      {
+        parser.printUsage(output, I18n.getBundle());
+        System.exit(1);
+      }
+      else
+      {
+        run();
+      }
     }
     catch (CmdLineException ex)
     {
@@ -170,6 +180,14 @@ public abstract class SubCommand
   /** Field description */
   protected ScmClientSession session;
 
+  /** Field description */
+  @Option(
+    name = "--help",
+    usage = "optionHelpText",
+    aliases = { "-h" }
+  )
+  private boolean help = false;
+
   /** Field description */
   private boolean sessionRequired = true;
 }