Add version.{h,cpp}: Returning version info

Makefile

@@ -55,6 +55,8 @@ gtest: $(GTESTS_TESTDIR)/*.cpp $(GTEST_OBJECTS)
 %.o:%.cpp
 	$(CXX) ${CXXFLAGS} ${LDFLAGS} ${INCLUDEFLAGS} -c -o $@ $<
 
+version.o:version.cpp
+	$(CXX) ${CXXFLAGS} ${LDFLAGS} ${INCLUDEFLAGS} -DGITCOMMIT=\"$(shell git rev-parse --short HEAD)\" -c -o $@ $<
 clean:
 	rm -f $(OBJECTS) $(DEPENDS)
 

qswiki.cpp

@@ -41,6 +41,7 @@ SOFTWARE.
 #include "cli.h"
 #include "cliconsole.h"
 #include "cliserver.h"
+#include "version.h"
 
 void sigterm_handler(int arg)
 {
@@ -73,11 +74,6 @@ std::unique_ptr<ICache> createCache(const ConfigVariableResolver &resolver)
 	return std::make_unique<FsCache>(path);
 }
 
-std::string get_version_string()
-{
-	return "master";
-}
-
 int main(int argc, char **argv)
 {
 

version.cpp

@@ -0,0 +1,11 @@
+#include "version.h"
+
+std::string git_commit_id()
+{
+	return std::string(GITCOMMIT);
+}
+
+std::string get_version_string()
+{
+	return git_commit_id() + " Built: " + __DATE__ + " " + __TIME__;
+}

version.h

@@ -0,0 +1,7 @@
+#ifndef VERSION_H
+#define VERSION_H
+
+#include <string>
+std::string git_commit_id();
+std::string get_version_string();
+#endif // VERSION_H