Implement --build-all

[builder.git] / source / target.cpp

diff --git a/source/target.cpp b/source/target.cpp
index 481d2f4a68dd460a6f3c0a8222af58be349208c9..d55202289dfd026fb1893a3c83abd8f1cd34f670 100644 (file)
--- a/source/target.cpp
+++ b/source/target.cpp
@@ -1,27 +1,28 @@
+#include <msp/path/utils.h>
+#include <msp/time/utils.h>
+#include "action.h"
 #include "builder.h"
+#include "package.h"
 #include "target.h"
 
 using namespace std;
-
-Target *TargetRef::get_target()
-{
-       if(!target)
-               target=builder.get_target(name);
-       return target;
-}
+using namespace Msp;
 
 Target *Target::get_buildable_target()
 {
-       if(rebuild && ready_for_build && !building)
-               return this;
-
+       bool self_ok=true;
        for(list<Target *>::iterator i=depends.begin(); i!=depends.end(); ++i)
        {
                Target *tgt=(*i)->get_buildable_target();
                if(tgt)
                        return tgt;
+               else if((*i)->get_rebuild())
+                       self_ok=false;
        }
 
+       if(self_ok && rebuild && !building)
+               return this;
+
        return 0;
 }
 
@@ -31,17 +32,88 @@ void Target::add_depend(Target *dep)
        dep->rdepends.push_back(this);
 }
 
+void Target::prepare()
+{
+       if(prepared)
+               return;
+
+       for(list<Target *>::iterator i=depends.begin(); i!=depends.end(); ++i)
+               (*i)->prepare();
+
+       check_rebuild();
+}
+
+unsigned Target::count_rebuild()
+{
+       if(counted)
+               return 0;
+
+       counted=true;
+       unsigned count=rebuild;
+       for(list<Target *>::iterator i=depends.begin(); i!=depends.end(); ++i)
+               count+=(*i)->count_rebuild();
+       return count;
+}
+
+void Target::touch()
+{
+       mtime=Time::now();
+}
+
 Target::Target(Builder &b, const Package *p, const string &n):
        builder(b),
        package(p),
        name(n),
        building(false),
        rebuild(false),
-       ready_for_build(false)
-{ }
+       deps_ready(false),
+       prepared(false),
+       buildable(false),
+       counted(false)
+{
+       struct stat st;
+       if(!Path::stat(name, st))
+               mtime=Time::TimeStamp::from_unixtime(st.st_mtime);
+}
 
 void Target::mark_rebuild(const std::string &reason)
 {
        rebuild=true;
        rebuild_reason=reason;
 }
+
+void Target::check_rebuild()
+{
+       if(!buildable)
+               return;
+
+       if(builder.get_build_all())
+               mark_rebuild("Rebuilding everything");
+       else if(!mtime)
+               mark_rebuild("Does not exist");
+       else
+       {
+               for(list<Target *>::iterator i=depends.begin(); (i!=depends.end() && !rebuild); ++i)
+               {
+                       if((*i)->get_mtime()>mtime)
+                               mark_rebuild(Path::basename((*i)->get_name())+" has changed");
+                       else if((*i)->get_rebuild())
+                               mark_rebuild(Path::basename((*i)->get_name())+" needs rebuilding");
+               }
+       }
+       if(!rebuild && package && package->get_config().get_mtime()>mtime)
+               mark_rebuild("Package options changed");
+}
+
+Action *Target::build(Action *action)
+{
+       building=true;
+       action->signal_done.connect(sigc::mem_fun(this, &Target::build_done));
+       return action;
+}
+
+void Target::build_done()
+{
+       building=false;
+       rebuild=false;
+}