Add version command line option

3 files changed, 19 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 8f6dac5..9b74c08 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -29,14 +29,24 @@
 #include "options.h"
 #include "restore.h"
 
+#include "program_info.h"
+
 #include <iostream>
 
+void
+print_version()
+{
+    std::cout << PROGRAM_NAME_STR << " " << PROGRAM_VERSION_STR << std::endl;
+}
+
 int
 main(int argc, char **argv)
 {
     try {
         if (OptionParser::isHelp(argc, argv)) {
             OptionParser::printUsage();
+        } else if (OptionParser::isVersion(argc, argv)) {
+            print_version();
         } else if (OptionParser::isBackup(argc, argv)) {
             backup(OptionParser::parseBackup(argc, argv));
         } else if (OptionParser::isRestore(argc, argv)) {
diff --git a/src/options.cpp b/src/options.cpp
index c44fd06..a5912b6 100644
--- a/src/options.cpp
+++ b/src/options.cpp
@@ -83,6 +83,8 @@ OptionParser::printUsage()
     std::cout << "   Or: " << PROGRAM_NAME_STR << " restore";
     std::cout << "[-B BUFFER_SIZE] -d DIFFFILE -o OUTFILE" << std::endl;
 
+    std::cout << "   Or: " << PROGRAM_NAME_STR << " version" << std::endl;
+
     std::cout << "   Or: " << PROGRAM_NAME_STR << " help" << std::endl;
 }
 
@@ -93,6 +95,12 @@ OptionParser::isHelp(int argc, char **argv)
 }
 
 bool
+OptionParser::isVersion(int argc, char **argv)
+{
+    return isOperation(argc, argv, "version");
+}
+
+bool
 OptionParser::isBackup(int argc, char **argv)
 {
     return isOperation(argc, argv, "backup");
diff --git a/src/options.h b/src/options.h
index 80cb8f8..ba7e7ac 100644
--- a/src/options.h
+++ b/src/options.h
@@ -90,6 +90,7 @@ class OptionParser
   public:
     static void printUsage();
     static bool isHelp(int argc, char **argv);
+    static bool isVersion(int argc, char **argv);
     static bool isBackup(int argc, char **argv);
     static bool isRestore(int argc, char **argv);
     ;