From bd9484750f546974047dacd9176a8072be846596 Mon Sep 17 00:00:00 2001
From: Bo Cai <cai.bo@h3c.com>
Date: Mon, 14 Sep 2015 19:50:47 +0800
Subject: [PATCH] tools:print the map infomation in human readable format.

Signed-off-by: Bo Cai <cai.bo@h3c.com>
(cherry picked from commit 5ed8cdc19150382c946a373ec940d76f98e6ecb7)
---
 src/tools/ceph_monstore_tool.cc | 32 +++++++++++++++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/src/tools/ceph_monstore_tool.cc b/src/tools/ceph_monstore_tool.cc
index c979bcdabe38e..6b890b218279b 100644
--- a/src/tools/ceph_monstore_tool.cc
+++ b/src/tools/ceph_monstore_tool.cc
@@ -24,6 +24,9 @@
 #include "include/stringify.h"
 #include "mon/MonitorDBStore.h"
 #include "mon/Paxos.h"
+#include "mon/MonMap.h"
+#include "mds/MDSMap.h"
+#include "osd/OSDMap.h"
 
 namespace po = boost::program_options;
 using namespace std;
@@ -551,6 +554,7 @@ int main(int argc, char **argv) {
   } else if (cmd == "get") {
     unsigned v = 0;
     string outpath;
+    bool readable = false;
     string map_type;
     // visible options for this command
     po::options_description op_desc("Allowed 'get' options");
@@ -560,6 +564,8 @@ int main(int argc, char **argv) {
        "output file (default: stdout)")
       ("version,v", po::value<unsigned>(&v),
        "map version to obtain")
+      ("readable,r", po::value<bool>(&readable)->default_value(false),
+       "print the map infomation in human readable format")
       ;
     // this is going to be a positional argument; we don't want to show
     // it as an option during --help, but we do want to have it captured
@@ -620,7 +626,31 @@ int main(int argc, char **argv) {
       err = EINVAL;
       goto done;
     }
-    bl.write_fd(fd);
+
+    if (readable) {
+      stringstream ss;
+      bufferlist out;
+      if (map_type == "monmap") {
+        MonMap monmap;
+        monmap.decode(bl);
+        monmap.print(ss);
+      } else if (map_type == "osdmap") {
+        OSDMap osdmap;
+        osdmap.decode(bl);
+        osdmap.print(ss);
+      } else if (map_type == "mdsmap") {
+        MDSMap mdsmap;
+        mdsmap.decode(bl);
+        mdsmap.print(ss);
+      } else {
+        std::cerr << "This type of readable map does not exist: " << map_type << std::endl
+                  << "You can only specify[osdmap|monmap|mdsmap]" << std::endl;
+      }
+      out.append(ss);
+      out.write_fd(fd);
+    } else {
+      bl.write_fd(fd);
+    }
 
     if (!outpath.empty()) {
       std::cout << "wrote " << map_type
-- 
2.39.5