+#include <fstream>
+#include <msp/strutils.h>
+#include <msp/parser/parser.h>
+#include <msp/path/utils.h>
+#include "builder.h"
+#include "executable.h"
+#include "header.h"
+#include "misc.h"
+#include "objectfile.h"
+#include "package.h"
+#include "virtualtarget.h"
+
+using namespace std;
+using namespace Msp;
+
+Builder::Builder(int argc, char **argv):
+ verbose(1),
+ cwd(Path::getcwd())
+{
+ for(int i=1; i<argc; ++i)
+ cmdline_targets.push_back(argv[i]);
+ if(cmdline_targets.empty())
+ cmdline_targets.push_back("default");
+}
+
+Package *Builder::get_package(const string &n)
+{
+ PackageMap::iterator i=packages.find(n);
+ if(i!=packages.end())
+ return i->second;
+
+ list<string> argv;
+ argv.push_back("pkg-config");
+ argv.push_back("--variable=source");
+ argv.push_back(n);
+ Path::Path srcdir=run_command(argv);
+ if(srcdir.empty())
+ {
+ string dirname=n;
+ if(dirname.compare(0, 3, "msp"))
+ dirname.erase(0, 3);
+ if(Path::exists(cwd/dirname))
+ srcdir=cwd/dirname;
+ else if(Path::exists(cwd/".."/dirname))
+ srcdir=cwd/".."/dirname;
+ }
+ else
+ srcdir=strip(srcdir.str());
+
+ if(!srcdir.empty())
+ load_build_file(srcdir/"Build");
+
+ return 0;
+}
+
+Target *Builder::get_target(const string &n)
+{
+ TargetMap::iterator i=targets.find(n);
+ if(i!=targets.end())
+ return i->second;
+ return 0;
+}
+
+Target *Builder::get_header(const string &include, const string &from, const list<string> &path)
+{
+ string id=from+":"+include;
+ TargetMap::iterator i=includes.find(id);
+ if(i!=includes.end())
+ return i->second;
+
+ string fn=include.substr(1);
+ Target *tgt;
+ if(include[0]=='"' && (tgt=check_header(Path::Path(from)/fn)))
+ return tgt;
+ if((tgt=check_header(Path::Path("/usr/include")/fn)))
+ return tgt;
+ if((tgt=check_header(Path::Path("/usr/include/c++/4.1.2")/fn)))
+ return tgt;
+ for(list<string>::const_iterator j=path.begin(); j!=path.end(); ++j)
+ if((tgt=check_header(Path::Path(*j)/fn)))
+ return tgt;
+
+ return 0;
+}
+
+int Builder::main()
+{
+ if(load_build_file("Build"))
+ {
+ cerr<<"No build info here.\n";
+ return 1;
+ }
+
+ default_pkg=packages.begin()->second;
+
+ while(!new_pkgs.empty())
+ {
+ Package *pkg=new_pkgs.front();
+ new_pkgs.erase(new_pkgs.begin());
+ pkg->resolve_refs();
+ }
+
+ cout<<"Active packages:";
+ for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
+ {
+ cout<<' '<<i->second->get_name();
+ if(i->second->get_buildable())
+ cout<<'*';
+ }
+ cout<<'\n';
+
+ create_targets();
+
+ for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
+ cout<<i->second->get_name()<<' '<<i->second->get_type()<<'\n';
+
+ cout<<"Active targets: "<<targets.size()<<'\n';
+
+ return 0;
+}
+
+int Builder::load_build_file(const Path::Path &fn)
+{
+ ifstream in(fn.str().c_str());
+ if(!in)
+ return -1;
+
+ Parser::Parser parser(in, fn.str());
+ Loader loader(*this, cwd/fn.subpath(0, fn.size()-1));
+ loader.load(parser);
+
+ return 0;
+}
+
+void Builder::create_targets()
+{
+ Target *world=new VirtualTarget(*this, "world");
+ add_target(world);
+ Target *def_tgt=new VirtualTarget(*this, "default");
+ add_target(def_tgt);
+
+ for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
+ {
+ cout<<i->second->get_source()<<'\n';
+ const ComponentList &components=i->second->get_components();
+ for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
+ {
+ Path::Path base=i->second->get_source()/j->get_source();
+ cout<<base<<'\n';
+ list<string> files=list_files(base);
+
+ list<ObjectFile *> objs;
+ for(list<string>::iterator k=files.begin(); k!=files.end(); ++k)
+ {
+ Path::Path fn=base/ *k;
+ //cout<<*k<<'\n';
+ string ext=Path::splitext(*k).ext;
+ if(ext==".cpp" || ext==".c")
+ {
+ SourceFile *src=new SourceFile(*this, &*j, fn.str());
+ add_target(src);
+
+ ObjectFile *obj=new ObjectFile(*this, *j, *src);
+ add_target(obj);
+ objs.push_back(obj);
+ }
+ else if(ext==".h")
+ add_target(new Header(*this, &*j, fn.str()));
+ }
+
+ Executable *exe=new Executable(*this, *j, objs);
+ add_target(exe);
+ if(i->second==default_pkg)
+ def_tgt->add_depend(exe);
+ }
+ }
+
+ while(!new_tgts.empty())
+ {
+ Target *tgt=new_tgts.front();
+ new_tgts.erase(new_tgts.begin());
+ tgt->find_depends();
+ }
+}
+
+Target *Builder::check_header(const Msp::Path::Path &fn)
+{
+ Target *tgt=get_target(fn.str());
+ if(tgt) return tgt;
+
+ if(Path::exists(fn))
+ {
+ add_target(tgt=new SystemHeader(*this, fn.str()));
+ return tgt;
+ }
+ return 0;
+}
+
+void Builder::add_target(Target *t)
+{
+ targets.insert(TargetMap::value_type(t->get_name(), t));
+ new_tgts.push_back(t);
+}
+
+Application::RegApp<Builder> Builder::reg;
+
+Builder::Loader::Loader(Builder &b, const Path::Path &s):
+ bld(b),
+ src(s)
+{
+ add("package", &Loader::package);
+}
+
+void Builder::Loader::package(const string &n)
+{
+ Package *pkg=new Package(bld, n, src);
+ load_sub(*pkg);
+ bld.packages.insert(PackageMap::value_type(n, pkg));
+ bld.new_pkgs.push_back(pkg);
+ //cout<<"loaded "<<pkg->get_name()<<'\n';
+}
+