1 files changed, 61 insertions, 2 deletions

diff --git a/src/filetarget.cpp b/src/filetarget.cpp
index 1880c35..f9367a4 100644
--- a/src/filetarget.cpp
+++ b/src/filetarget.cpp
@@ -1,6 +1,7 @@
 #include <errno.h>
 #include <dirent.h>
 
+#include "perform.h"
 #include "rule.h"
 #include "filetarget.h"
 #include "builder.h" // for BuildException
@@ -66,8 +67,11 @@ void FileTarget::addInputDir( const char *sDir )
         closedir( dir );
 }
 
+int nNew, nCache;
+
 void FileTarget::check( Builder &bld )
 {
+        nNew = nCache = 0;
         Rule *pRule = bld.getRule( sRule );
 
         std::list<Perform *> perf;
@@ -79,12 +83,67 @@ void FileTarget::check( Builder &bld )
         for( std::list<Perform *>::iterator i = perf.begin();
                  i != perf.end(); i++ )
         {
-                std::list<std::string> lReqs = bld.getRequires( (*i)->getTarget() );
-                
+                time_t target = getTime( std::string((*i)->getTarget()) );
+                std::list<std::string> *lReqs = bld.getRequires( (*i)->getTarget() );
+                if( lReqs == NULL )
+                {
+                        printf("No dependancies: %s\n", (*i)->getTarget() );
+                        continue;
+                }
+                for( std::list<std::string>::iterator j = lReqs->begin();
+                         j != lReqs->end(); j++ )
+                {
+                        if( getTime( *j ) > target )
+                        {
+                                (*i)->execute( bld );
+                                updateTime( (*i)->getTarget() );
+                                break;
+                        }
+                }
         }
+
+        printf("Cache hits %d, %d new (%f%%)\n", nCache, nNew, nCache/ (double)(nNew+nCache)*100.0 );
 }
 
 void FileTarget::clean( Builder &bld )
 {
+        Rule *pRule = bld.getRule( sRule );
+
+        std::list<Perform *> perf;
+        std::list<std::string> tmp = pRule->execute( bld, lInput, perf, getName() );
+        lOutput.insert( lOutput.end(), tmp.begin(), tmp.end() );
+
+        for( std::list<std::string>::iterator i = lOutput.begin();
+                 i != lOutput.end(); i++ )
+        {
+                unlink( (*i).c_str() );
+        }
+}
+
+time_t FileTarget::getTime( std::string str )
+{
+        std::map<std::string, time_t>::iterator i = mTimes.find( str );
+        if( i != mTimes.end() )
+        {
+                nCache++;
+                return (*i).second;
+        }
+
+        struct stat st;
+        stat( str.c_str(), &st );
+
+        mTimes[str] = st.st_mtime;
+
+        nNew++;
+
+        return st.st_mtime;
+}
+
+void FileTarget::updateTime( std::string str )
+{
+        struct stat st;
+        stat( str.c_str(), &st );
+
+        mTimes[str] = st.st_mtime;
 }