Move the logic for creating targets into the Component class

[builder.git] / source / component.cpp

diff --git a/source/component.cpp b/source/component.cpp
index 22392f0d91212cd0a01586e4bd1b941d46f8b47b..b2ac62cc1b2a857a72c64bad3977e671a7f17c0d 100644 (file)
--- a/source/component.cpp
+++ b/source/component.cpp
@@ -1,13 +1,26 @@
+#include <msp/core/error.h>
+#include <msp/path/utils.h>
+#include "builder.h"
 #include "component.h"
+#include "header.h"
+#include "install.h"
+#include "objectfile.h"
 #include "package.h"
+#include "sharedlibrary.h"
+#include "staticlibrary.h"
+#include "target.h"
 
 using namespace std;
+using namespace Msp;
 
 Component::Component(Package &p, Type t, const string &n):
        pkg(p),
        type(t),
        name(n),
-       install(false)
+       install(false),
+       module_host(0),
+       modular(false),
+       deflt(true)
 { }
 
 /**
@@ -34,9 +47,120 @@ void Component::create_build_info()
                build_info.add(i->get_package()->get_exported_binfo());
        }
 
+       if(modular)
+       {
+               build_info.ldflags.push_back("-rdynamic");
+               build_info.libs.push_back("dl");
+       }
+       else if(module_host)
+       {
+               const PathList &host_src=module_host->get_sources();
+               for(PathList::const_iterator i=host_src.begin(); i!=host_src.end(); ++i)
+                       build_info.incpath.push_back(i->str());
+       }
+
        build_info.unique();
 }
 
+/**
+Creates all targets needed for building this component.
+*/
+void Component::create_targets() const
+{
+       Builder &builder=pkg.get_builder();
+       Target *world=builder.get_target("world");
+       Target *def_tgt=builder.get_target("default");
+
+       PathList files=collect_source_files();
+
+       bool build_exe=(type!=Component::HEADERS);
+
+       list<ObjectFile *> objs;
+       list<Target *> inst_tgts;
+       for(PathList::const_iterator i=files.begin(); i!=files.end(); ++i)
+       {
+               string basename=(*i)[-1];
+               string ext=Path::splitext(basename).ext;
+               if((ext==".cpp" || ext==".c") && build_exe)
+               {
+                       SourceFile *src=new SourceFile(builder, this, i->str());
+
+                       // Compile sources
+                       ObjectFile *obj=new ObjectFile(builder, *this, *src);
+                       objs.push_back(obj);
+               }
+               else if(ext==".h")
+               {
+                       Target *hdr=builder.get_target(i->str());
+                       if(!hdr)
+                               hdr=new Header(builder, this, i->str());
+
+                       // Install headers if requested
+                       if(!install_headers.empty())
+                               inst_tgts.push_back(hdr);
+               }
+       }
+
+       if(build_exe)
+       {
+               Executable    *exe=0;
+               StaticLibrary *slib=0;
+               if(type==Component::LIBRARY)
+               {
+                       exe=new SharedLibrary(builder, *this, objs);
+                       slib=new StaticLibrary(builder, *this, objs);
+               }
+               else
+                       exe=new Executable(builder, *this, objs);
+
+               if(&pkg==builder.get_default_package() && deflt)
+               {
+                       def_tgt->add_depend(exe);
+                       if(slib) def_tgt->add_depend(slib);
+               }
+               else
+               {
+                       world->add_depend(exe);
+                       if(slib) world->add_depend(slib);
+               }
+
+               if(install)
+               {
+                       inst_tgts.push_back(exe);
+                       if(slib)
+                               inst_tgts.push_back(slib);
+               }
+       }
+
+       Target *inst_tgt=builder.get_target("install");
+       for(TargetList::const_iterator i=inst_tgts.begin(); i!=inst_tgts.end(); ++i)
+               inst_tgt->add_depend(new Install(builder, pkg, **i));
+}
+
+/**
+Collects all files belonging to the component.
+*/
+PathList Component::collect_source_files() const
+{
+       PathList files;
+       for(PathList::const_iterator i=sources.begin(); i!=sources.end(); ++i)
+       {
+               struct stat st;
+               stat(*i, st);
+               if(S_ISDIR(st.st_mode))
+               {
+                       list<string> sfiles=list_files(*i);
+                       for(list<string>::iterator j=sfiles.begin(); j!=sfiles.end(); ++j)
+                               files.push_back(*i / *j);
+               }
+               else
+                       files.push_back(*i);
+       }
+
+       return files;
+}
+
+
 Component::Loader::Loader(Component &c):
        comp(c)
 {
@@ -45,6 +169,9 @@ Component::Loader::Loader(Component &c):
        add("install_headers", &Component::install_headers);
        add("build_info",      &Loader::build_info);
        add("require",         &Loader::require);
+       add("modular",         &Loader::modular);
+       add("host",            &Loader::host);
+       add("default",         &Component::deflt);
 }
 
 void Component::Loader::source(const string &s)
@@ -57,6 +184,28 @@ void Component::Loader::require(const string &n)
        comp.requires.push_back(PackageRef(comp.pkg.get_builder(), n));
 }
 
+void Component::Loader::modular()
+{
+       if(comp.type!=PROGRAM)
+               throw Msp::Exception("Only programs can be modular");
+       comp.modular=true;
+}
+
+void Component::Loader::host(const string &n)
+{
+       const ComponentList &comps=comp.pkg.get_components();
+       for(ComponentList::const_iterator i=comps.begin(); i!=comps.end(); ++i)
+               if(i->get_name()==n)
+               {
+                       if(i->get_type()!=PROGRAM || !i->get_modular())
+                               throw Msp::Exception("Module host must be a modular program");
+                       comp.module_host=&*i;
+                       return;
+               }
+
+       throw Msp::Exception("Unknown component");
+}
+
 void Component::Loader::build_info()
 {
        load_sub(comp.build_info);