4 files changed, 159 insertions, 0 deletions

diff --git a/src/cache.cpp b/src/cache.cpp
new file mode 100644
index 0000000..1646d0a
--- /dev/null
+++ b/src/cache.cpp
@@ -0,0 +1,39 @@
+#include "cache.h"
+#include <bu/file.h>
+#include <bu/archive.h>
+
+Cache::Cache() :
+        bIsLoaded( false )
+{
+}
+
+Cache::~Cache()
+{
+}
+
+void Cache::bind( const Bu::FString &sCacheFile )
+{
+        this->sCacheFile = sCacheFile;
+        load();
+}
+
+void Cache::load()
+{
+        if( bIsLoaded )
+                return;
+        Bu::File fIn( sCacheFile, Bu::File::Read );
+        Bu::Archive ar( fIn, Bu::Archive::load );
+
+        ar >> hRequires >> hVariables;
+
+        bIsLoaded = true;
+}
+
+void Cache::save()
+{
+        Bu::File fIn( sCacheFile, Bu::File::WriteNew );
+        Bu::Archive ar( fIn, Bu::Archive::save );
+
+        ar << hRequires << hVariables;
+}
+
diff --git a/src/cache.h b/src/cache.h
new file mode 100644
index 0000000..b255e94
--- /dev/null
+++ b/src/cache.h
@@ -0,0 +1,33 @@
+#ifndef CACHE_H
+#define CACHE_H
+
+#include <bu/singleton.h>
+#include <bu/fstring.h>
+#include <bu/hash.h>
+#include <bu/list.h>
+
+#include "variable.h"
+
+class Cache : public Bu::Singleton<Cache>
+{
+friend class Bu::Singleton<Cache>;
+private:
+        Cache();
+        virtual ~Cache();
+
+public:
+        void bind( const Bu::FString &sCacheFile );
+
+        void load();
+        void save();
+
+private:
+        Bu::FString sCacheFile;
+        bool bIsLoaded;
+        typedef Bu::Hash<Bu::FString, Bu::List<Bu::FString> > ReqHash;
+        ReqHash hRequires;
+        typedef Bu::Hash<Bu::FString, Variable> VarHash;
+        VarHash hVariables;
+};
+
+#endif
diff --git a/src/variable.cpp b/src/variable.cpp
index 99bac59..87571b6 100644
--- a/src/variable.cpp
+++ b/src/variable.cpp
@@ -890,3 +890,84 @@ Bu::Formatter &operator<<( Bu::Formatter &f, const Variable &v )
         return f;
 }
 
+Bu::ArchiveBase &operator<<( Bu::ArchiveBase &ar, const Variable &v )
+{
+        ar << (int8_t)v.eType;
+        switch( v.eType )
+        {
+                case Variable::typeNone:
+                        break;
+
+                case Variable::typeBool:
+                        ar << v.uVal.bVal;
+                        break;
+
+                case Variable::typeInt:
+                        ar << v.uVal.iVal;
+                        break;
+
+                case Variable::typeFloat:
+                        ar << v.uVal.fVal;
+                        break;
+
+                case Variable::typeVersion:
+                        break;
+
+                case Variable::typeString:
+                        ar << *v.uVal.sVal;
+                        break;
+
+                case Variable::typeList:
+                        ar << *v.uVal.lVal;
+                        break;
+
+                case Variable::typeRef:
+                        ar << *v.uVal.sVal;
+                        break;
+        }
+
+        return ar;
+}
+
+Bu::ArchiveBase &operator>>( Bu::ArchiveBase &ar, Variable &v )
+{
+        int8_t t;
+        ar >> t;
+        v.eType = (Variable::Type)t;
+        v.reset( v.eType );
+        switch( v.eType )
+        {
+                case Variable::typeNone:
+                        break;
+
+                case Variable::typeBool:
+                        ar >> v.uVal.bVal;
+                        break;
+
+                case Variable::typeInt:
+                        ar >> v.uVal.iVal;
+                        break;
+
+                case Variable::typeFloat:
+                        ar >> v.uVal.fVal;
+                        break;
+
+                case Variable::typeVersion:
+                        break;
+
+                case Variable::typeString:
+                        ar >> *v.uVal.sVal;
+                        break;
+
+                case Variable::typeList:
+                        ar >> *v.uVal.lVal;
+                        break;
+
+                case Variable::typeRef:
+                        ar >> *v.uVal.sVal;
+                        break;
+        }
+        
+        return ar;
+}
+
diff --git a/src/variable.h b/src/variable.h
index 1b5542e..c8679a8 100644
--- a/src/variable.h
+++ b/src/variable.h
@@ -2,12 +2,15 @@
 #define VARIABLE_H
 
 #include "types.h"
+#include <bu/archivebase.h>
 
 /**
  * A build variable, which is basically a flexible, limited type range variant.
  */
 class Variable
 {
+friend Bu::ArchiveBase &operator<<( Bu::ArchiveBase &ar, const Variable &v );
+friend Bu::ArchiveBase &operator>>( Bu::ArchiveBase &ar, Variable &v );
 public:
         enum Type
         {
@@ -112,4 +115,7 @@ namespace Bu
 Bu::Formatter &operator<<( Bu::Formatter &f, const Variable::Type &t );
 Bu::Formatter &operator<<( Bu::Formatter &f, const Variable &v );
 
+Bu::ArchiveBase &operator<<( Bu::ArchiveBase &ar, const Variable &v );
+Bu::ArchiveBase &operator>>( Bu::ArchiveBase &ar, Variable &v );
+
 #endif