+ init(&p);
+}
+
+void FileTarget::init(const SourcePackage *p)
+{
+ size = 0;
+ package = p;
+ nested_build_sig = false;
+ arch_in_build_sig = false;
+
+ builder.get_vfs().register_path(path, this);
+
+ stat();
+}
+
+void FileTarget::stat()
+{
+ if(FS::Stat st = FS::lstat(path))
+ {
+ mtime = st.get_modify_time();
+ size = st.get_size();
+ }
+}
+
+string FileTarget::generate_name(Builder &builder, const SourcePackage *pkg, const FS::Path &path)
+{
+ if(pkg && FS::descendant_depth(path, pkg->get_source_directory())>=0)
+ {
+ FS::Path relpath = FS::relative(path, pkg->get_source_directory());
+ return format("<%s>%s", pkg->get_name(), relpath.str().substr(1));
+ }
+ else if(FS::descendant_depth(path, builder.get_prefix())>=0)
+ {
+ FS::Path relpath = FS::relative(path, builder.get_prefix());
+ return "<prefix>"+relpath.str().substr(1);
+ }
+
+ return path.str();
+}
+
+void FileTarget::touch()
+{
+ mtime = Time::now();
+ modified();
+ signal_bubble_rebuild.emit();
+}
+
+void FileTarget::check_rebuild()
+{
+ if(!tool || needs_rebuild())
+ return;
+
+ if(!mtime)
+ mark_rebuild("Does not exist");
+ else
+ {
+ for(Dependencies::iterator i=depends.begin(); (i!=depends.end() && !needs_rebuild()); ++i)
+ {
+ FileTarget *ft = dynamic_cast<FileTarget *>(*i);
+ if(ft && ft->get_mtime()>mtime)
+ mark_rebuild((*i)->get_name()+" has changed");
+ else if((*i)->needs_rebuild())
+ mark_rebuild((*i)->get_name()+" needs rebuilding");
+ }
+ }
+
+ if(!needs_rebuild())
+ {
+ // Some side effects might not exist
+ for(Dependencies::iterator i=side_effects.begin(); (i!=side_effects.end() && !needs_rebuild()); ++i)
+ if((*i)->needs_rebuild())
+ mark_rebuild((*i)->get_name()+" needs rebuilding");
+ }
+
+ if(!needs_rebuild() && package)
+ {
+ if(package->get_config().get_mtime()>mtime)
+ mark_rebuild("Package options changed");
+
+ if(tool->get_executable())
+ {
+ string build_sig = create_build_signature();
+ if(package->get_cache().has_key(this, "build_sig"))
+ {
+ if(package->get_cache().get_value(this, "build_sig")!=build_sig)
+ mark_rebuild("Build signature changed");
+ }
+ }
+ }
+}
+
+string FileTarget::create_build_signature() const
+{
+ if(!package)
+ return string();
+
+ const BuildInfo &binfo = (component ? component->get_build_info() : package->get_build_info());
+ list<string> sigs;
+ if(nested_build_sig && component)
+ {
+ set<const Tool *> depend_tools;
+ for(Dependencies::const_iterator i=depends.begin(); i!=depends.end(); ++i)
+ if((*i)->get_component()==component && (*i)->get_tool())
+ depend_tools.insert((*i)->get_tool());
+
+ for(set<const Tool *>::const_iterator i=depend_tools.begin(); i!=depend_tools.end(); ++i)
+ sigs.push_back((*i)->create_build_signature(binfo));
+ sigs.sort();
+ sigs.push_front(tool->create_build_signature(binfo));
+ }
+ else
+ sigs.push_back(tool->create_build_signature(binfo));
+
+ if(arch_in_build_sig)
+ if(const Architecture *arch = tool->get_architecture())
+ sigs.push_front(arch->get_name());
+
+ return join(sigs.begin(), sigs.end(), ";");
+}
+
+void FileTarget::build(Task &task)
+{
+ task.add_file(path);
+ task.set_unlink(true);
+}
+
+void FileTarget::build_finished(bool success)
+{
+ if(success)
+ {
+ stat();
+ if(package)
+ {
+ string build_sig = create_build_signature();
+ if(!build_sig.empty())
+ package->get_cache().set_value(this, "build_sig", build_sig);
+ }
+ }
+
+ Target::build_finished(success);
+}
+
+void FileTarget::clean()
+{
+ if(mtime)
+ {
+ FS::unlink(path);
+ mtime = Time::TimeStamp();
+ size = 0;
+ check_rebuild();
+ }