Added some boilerplates for backup exchanger

backup_exchanger.cc

@@ -0,0 +1,12 @@
+// Part of ZBackup. Licensed under GNU GPLv2 or later
+
+#include "storage_info_file.hh"
+
+namespace BackupExchanger {
+
+BackupExchanger::BackupExchanger( )
+{
+
+}
+
+}

backup_exchanger.hh

@@ -4,6 +4,11 @@
 #define EXCHANGE_HH_INCLUDED__
 
 #include <bitset>
+#include <exception>
+#include <string>
+
+using std::vector;
+using std::string;
 
 namespace BackupExchanger {
 

zbackup.cc

@@ -297,6 +297,16 @@ void ZRestore::restoreToStdin( string const & inputFileName )
     throw exChecksumError();
 }
 
+ZExchange::ZExchange( string const & srcStorageDir, string const & srcPassword,
+                    string const & dstStorageDir, string const & dstPassword,
+                    bitset< BackupExchanger::Flags > const & exchange )
+{
+}
+
+void ZExchange::exchange()
+{
+}
+
 DEF_EX( exExchangeWithLessThanTwoKeys, "Specify password flag (--non-encrypted or --password-file)"
    " for import/export operation twice (first for source and second for destination)", std::exception )
 DEF_EX( exNonEncryptedWithKey, "--non-encrypted and --password-file are incompatible", std::exception )
@@ -508,16 +518,23 @@ int main( int argc, char *argv[] )
         return EXIT_FAILURE;
       }
 
+      string src, dst = 0;
       if ( strcmp( args[ 0 ], "export" ) == 0 )
       {
-
+        src = args[ 1 ];
+        dst = args[ 2 ];
       }
       else
       if ( strcmp( args[ 0 ], "import" ) == 0 )
       {
-
+        src = args[ 2 ];
+        dst = args[ 1 ];
       }
 
+      ZExchange ze( ZBackup::deriveStorageDirFromBackupsFile( src ), passwords[ 0 ],
+                    ZBackup::deriveStorageDirFromBackupsFile( dst ), passwords[ 1 ],
+                    exchange );
+      ze.exchange();
     }
     else
     {

zbackup.hh

@@ -8,6 +8,7 @@
 #include <exception>
 #include <string>
 #include <vector>
+#include <bitset>
 
 #include "chunk_id.hh"
 #include "chunk_index.hh"
@@ -16,9 +17,11 @@
 #include "ex.hh"
 #include "tmp_mgr.hh"
 #include "zbackup.pb.h"
+#include "backup_exchanger.hh"
 
 using std::string;
 using std::vector;
+using std::bitset;
 
 struct Paths
 {
@@ -94,4 +97,15 @@ public:
   void restoreToStdin( string const & inputFileName );
 };
 
+class ZExchange
+{
+public:
+  ZExchange( string const & srcStorageDir, string const & srcPassword,
+            string const & dstStorageDir, string const & dstPassword,
+            bitset< BackupExchanger::Flags > const & exchange );
+
+  /// Exchanges the data between storages
+  void exchange();
+};
+
 #endif