From adbfd4b945d6a169b2ed48e59c4d5c74edc564b9 Mon Sep 17 00:00:00 2001
From: siddontang <siddontang@gmail.com>
Date: Tue, 3 Feb 2015 14:22:12 +0800
Subject: [PATCH] add role command doc

---
 cmd/ledis-cli/const.go |  3 ++-
 doc/commands.json      |  6 ++++++
 doc/commands.md        | 40 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 48 insertions(+), 1 deletion(-)

diff --git a/cmd/ledis-cli/const.go b/cmd/ledis-cli/const.go
index b5265d6..54554c7 100644
--- a/cmd/ledis-cli/const.go
+++ b/cmd/ledis-cli/const.go
@@ -1,4 +1,4 @@
-//This file was generated by .tools/generate_commands.py on Sat Jan 24 2015 10:59:30 +0800 
+//This file was generated by .tools/generate_commands.py on Tue Feb 03 2015 14:21:53 +0800 
 package main
 
 var helpCommands = [][]string{
@@ -77,6 +77,7 @@ var helpCommands = [][]string{
 	{"PERSIST", "key", "KV"},
 	{"PING", "-", "Server"},
 	{"RESTORE", "key ttl value", "Server"},
+	{"ROLE", "-", "Server"},
 	{"ROLLBACK", "-", "Transaction"},
 	{"RPOP", "key", "List"},
 	{"RPUSH", "key value [value ...]", "List"},
diff --git a/doc/commands.json b/doc/commands.json
index 7d7e84a..abbd4f1 100644
--- a/doc/commands.json
+++ b/doc/commands.json
@@ -788,5 +788,11 @@
         "arguments" : "key ttl value",
         "group" : "Server",
         "readonly" : false
+    },
+
+    "ROLE": {
+        "arguments" : "-",
+        "group" : "Server",
+        "readonly" : true
     }
 }
diff --git a/doc/commands.md b/doc/commands.md
index 1471b0a..1cde082 100644
--- a/doc/commands.md
+++ b/doc/commands.md
@@ -159,6 +159,7 @@ Table of Contents
 	- [TIME](#time)
 	- [CONFIG REWRITE](#config-rewrite)
 	- [RESTORE key ttl value](#restore-key-ttl-value)
+	- [ROLE](#role)
 - [Transaction](#transaction)
 	- [BEGIN](#begin)
 	- [ROLLBACK](#rollback)
@@ -2838,6 +2839,45 @@ If ttl is 0 the key is created without any expire, otherwise the specified expir
 
 RESTORE checks the RDB version and data checksum. If they don't match an error is returned.
 
+### ROLE
+
+Provide information on the role of an intance in the context of replication. 
+
+Role: master and slave
+
+Master output:
+
+```
+1) "master"
+2) (integer) 3129659
+3) 1) 1) "127.0.0.1"
+      2) "9001"
+      3) "3129242"
+   2) 1) "127.0.0.1"
+      2) "9002"
+      3) "3129543"
+```
+
+1. The string master.
+2. The current master replication binlog last log id.
+3. An array about the slaves, each sub array contains slave IP, port, and the last acknowledged replication binlog id. 
+
+Slave output:
+
+```
+1) "slave"
+2) "127.0.0.1"
+3) (integer) 9000
+4) "connected"
+5) (integer) 3167038
+```
+
+1. The string slave
+2. The slave IP
+3. The slave port
+4. The slave replication state, includes connect, connecting, sync and connected.
+5. The slave current replication binlog id.
+
 ## Transaction
 
 ### BEGIN