From 29b5b7d27f6b6ebe1477cad2d2c47df2297d5af5 Mon Sep 17 00:00:00 2001
From: Jan Kaluza <hanzz.k@gmail.com>
Date: Wed, 16 Nov 2011 09:39:29 +0100
Subject: [PATCH] Added spectrum2 --version + handle SPECTRUM_VERSION cmake
 variable

---
 CMakeLists.txt        | 19 +++++++++++++++++++
 spectrum/src/main.cpp |  8 ++++++--
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d7dfa8bc..c43cdf7b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -64,6 +64,25 @@ ADD_DEFINITIONS(-DBOOST_FILESYSTEM_VERSION=2)
 
 message("  Supported features")
 message("-----------------------")
+
+if (SPECTRUM_VERSION)
+	ADD_DEFINITIONS(-DSPECTRUM_VERSION="${SPECTRUM_VERSION}")
+else (SPECTRUM_VERSION)
+	if (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git)
+		execute_process(COMMAND git "--git-dir=${CMAKE_CURRENT_SOURCE_DIR}/.git" rev-parse --short HEAD
+						OUTPUT_VARIABLE GIT_REVISION
+						OUTPUT_STRIP_TRAILING_WHITESPACE
+		)
+		set(SPECTRUM_VERSION 2.0.0-beta-git-${GIT_REVISION})
+		ADD_DEFINITIONS(-DSPECTRUM_VERSION="${SPECTRUM_VERSION}")
+	else (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git)
+		set(SPECTRUM_VERSION 2.0.0-alpha)
+		ADD_DEFINITIONS(-DSPECTRUM_VERSION="${SPECTRUM_VERSION}")
+	endif (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git)
+endif (SPECTRUM_VERSION)
+
+message("Version           : " ${SPECTRUM_VERSION})
+
 if (SQLITE3_FOUND)
 	ADD_DEFINITIONS(-DWITH_SQLITE)
 	include_directories(${SQLITE3_INCLUDE_DIR})
diff --git a/spectrum/src/main.cpp b/spectrum/src/main.cpp
index 573ff3c8..fb52de18 100644
--- a/spectrum/src/main.cpp
+++ b/spectrum/src/main.cpp
@@ -138,13 +138,14 @@ int main(int argc, char **argv)
 		return -1;
 	}
 #endif
-	boost::program_options::options_description desc("Usage: spectrum [OPTIONS] <config_file.cfg>\nAllowed options");
+	boost::program_options::options_description desc(std::string("Spectrum version: ") + SPECTRUM_VERSION + "\nUsage: spectrum [OPTIONS] <config_file.cfg>\nAllowed options");
 	desc.add_options()
 		("help,h", "help")
 		("no-daemonize,n", "Do not run spectrum as daemon")
 		("no-debug,d", "Create coredumps on crash")
 		("jid,j", boost::program_options::value<std::string>(&jid)->default_value(""), "Specify JID of transport manually")
 		("config", boost::program_options::value<std::string>(&config_file)->default_value(""), "Config file")
+		("version,v", "Shows Spectrum version")
 		;
 	try
 	{
@@ -154,7 +155,10 @@ int main(int argc, char **argv)
           options(desc).positional(p).run(), vm);
 		boost::program_options::notify(vm);
 
-		
+		if (vm.count("version")) {
+			std::cout << SPECTRUM_VERSION << "\n";
+			return 0;
+		}
 
 		if(vm.count("help"))
 		{