From 10347ef2f29bf05db8bf9600c0498113cad48db7 Mon Sep 17 00:00:00 2001
From: Jan Kupec <jkupec@suse.cz>
Date: Fri, 3 Oct 2008 08:17:29 +0000
Subject: [PATCH] - simulate rug ping command (bnc #430756)

---
 doc/zypper.8   | 11 +++++++++++
 src/Command.cc |  2 ++
 src/Command.h  |  4 +++-
 src/Zypper.cc  | 25 +++++++++++++++++++++++++
 4 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/doc/zypper.8 b/doc/zypper.8
index be4ffd2..1483dad 100644
--- a/doc/zypper.8
+++ b/doc/zypper.8
@@ -1348,6 +1348,17 @@ zypper info -t pattern
 .I rug product-info
 zypper info -t product
 
+.SS System Commands
+.TP
+.I rug ping
+zypper ping
+.IP
+This command just returns 0 without producing any output or doing anything
+to the system. Rug's ping command is used to wake up the ZLM daemon
+or to check whether it is up and running. Since zypper does no require
+ZLM or any other daemon to run, it is safe to always return 0 here to
+indicate it is ready for operation.
+
 .SS Other Compatibility Notes
 
 .TP
diff --git a/src/Command.cc b/src/Command.cc
index 8126b3b..75f1a67 100644
--- a/src/Command.cc
+++ b/src/Command.cc
@@ -86,6 +86,7 @@ const ZypperCommand ZypperCommand::RUG_INFO_CONFLICTS(ZypperCommand::RUG_INFO_CO
 const ZypperCommand ZypperCommand::RUG_INFO_OBSOLETES(ZypperCommand::RUG_INFO_OBSOLETES_e);
 const ZypperCommand ZypperCommand::RUG_INFO_REQUIREMENTS(ZypperCommand::RUG_INFO_REQUIREMENTS_e);
 const ZypperCommand ZypperCommand::RUG_PATCH_SEARCH(ZypperCommand::RUG_PATCH_SEARCH_e);
+const ZypperCommand ZypperCommand::RUG_PING(ZypperCommand::RUG_PING_e);
 
 
 ZypperCommand::ZypperCommand(const std::string & strval_r)
@@ -162,6 +163,7 @@ ZypperCommand::Command ZypperCommand::parse(const std::string & strval_r)
     _table["info-conflicts"] = _table["ic"] = ZypperCommand::RUG_INFO_CONFLICTS_e;
     _table["info-obsoletes"] = _table["io"] = ZypperCommand::RUG_INFO_OBSOLETES_e;
     _table["patch-search"] = _table["pse"] = ZypperCommand::RUG_PATCH_SEARCH_e;
+    _table["ping"] = ZypperCommand::RUG_PING_e;
   }
 
   std::map<std::string,ZypperCommand::Command>::const_iterator it
diff --git a/src/Command.h b/src/Command.h
index e18dec1..5041e57 100644
--- a/src/Command.h
+++ b/src/Command.h
@@ -85,6 +85,7 @@ struct ZypperCommand
   static const ZypperCommand RUG_INFO_OBSOLETES;
   static const ZypperCommand RUG_INFO_REQUIREMENTS;
   static const ZypperCommand RUG_PATCH_SEARCH;
+  static const ZypperCommand RUG_PING;
   //!@}
 
   enum Command
@@ -152,7 +153,8 @@ struct ZypperCommand
     RUG_INFO_CONFLICTS_e,
     RUG_INFO_OBSOLETES_e,
     RUG_INFO_REQUIREMENTS_e,
-    RUG_PATCH_SEARCH_e
+    RUG_PATCH_SEARCH_e,
+    RUG_PING_e
   };
 
   ZypperCommand(Command command) : _command(command) {}
diff --git a/src/Zypper.cc b/src/Zypper.cc
index d152119..ffe65f5 100644
--- a/src/Zypper.cc
+++ b/src/Zypper.cc
@@ -2164,6 +2164,24 @@ void Zypper::processCommandOptions()
     break;
   }
 
+  case ZypperCommand::RUG_PING_e:
+  {
+    static struct option options[] = {
+      {"help", no_argument, 0, 'h'},
+      {"if-active", no_argument, 0, 'a'},
+      {0, 0, 0, 0}
+    };
+    specific_options = options;
+    _command_help = _(
+      // translators: this is just a rug-compatiblity command
+      "ping [options]\n"
+      "\n"
+      "This command has dummy implementation which always returns 0.\n"
+      "It is provided for compatibility with rug.\n"
+    );
+    break;
+  }
+
   default:
   {
     if (runningHelp())
@@ -3951,6 +3969,13 @@ void Zypper::doCommand()
     break;
   }
 
+  // dummy commands
+  case ZypperCommand::RUG_PING_e:
+  {
+    if (runningHelp()) { out().info(_command_help, Out::QUIET); return; }
+    break;
+  }
+
   default:
     // if the program reaches this line, something went wrong
     setExitCode(ZYPPER_EXIT_ERR_BUG);
-- 
2.7.4