From 9531c84807910e0d85e34e6bbadecec587371355 Mon Sep 17 00:00:00 2001
From: antirez <antirez@gmail.com>
Date: Thu, 16 Jan 2014 16:23:28 +0100
Subject: [PATCH] Cluster: redis-trib help output improved.

Show options if any. Clarify that for some command any node address is
ok.
---
 src/redis-trib.rb | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/redis-trib.rb b/src/redis-trib.rb
index 9c06c22ab..46c95c9ba 100755
--- a/src/redis-trib.rb
+++ b/src/redis-trib.rb
@@ -857,12 +857,18 @@ ALLOWED_OPTIONS={
 }
 
 def show_help
-    puts "Usage: redis-trib <command> <options> <arguments ...>"
-    puts
+    puts "Usage: redis-trib <command> <options> <arguments ...>\n\n"
     COMMANDS.each{|k,v|
-        puts "  #{k.ljust(10)} #{v[2]}"
+        o = ""
+        if ALLOWED_OPTIONS[k]
+            ALLOWED_OPTIONS[k].each{|optname,has_arg|
+                o += "--#{optname}" + (has_arg ? " <arg>" : "") + " "
+            }
+        end
+        o = "[#{o.strip}]" if o.length > 0
+        puts "  #{k.ljust(10)} #{v[2]} #{o}"
     }
-    puts
+    puts "\nFor check, fix, reshard, you can specify host:port of any working node.\n"
 end
 
 # Sanity check