]> git.tdb.fi Git - builder.git/blobdiff - source/builder.cpp
Refactor transitive dependencies to work on all targets
[builder.git] / source / builder.cpp
diff --git a/source/builder.cpp b/source/builder.cpp
deleted file mode 100644 (file)
index 15c9e54..0000000
+++ /dev/null
@@ -1,849 +0,0 @@
-/* $Id$
-
-This file is part of builder
-Copyright © 2006-2007 Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
-#include <fstream>
-#include <iostream>
-#include <set>
-#include <msp/core/except.h>
-#include <msp/core/getopt.h>
-#include <msp/datafile/parser.h>
-#include <msp/path/utils.h>
-#include <msp/strings/formatter.h>
-#include <msp/strings/regex.h>
-#include <msp/strings/utils.h>
-#include <msp/time/units.h>
-#include <msp/time/utils.h>
-#include "action.h"
-#include "analyzer.h"
-#include "binarypackage.h"
-#include "builder.h"
-#include "header.h"
-#include "install.h"
-#include "misc.h"
-#include "package.h"
-#include "pkgconfig.h"
-#include "sharedlibrary.h"
-#include "sourcepackage.h"
-#include "systemlibrary.h"
-#include "tarball.h"
-#include "unlink.h"
-#include "virtualtarget.h"
-
-using namespace std;
-using namespace Msp;
-
-Builder::Builder(int argc, char **argv):
-       main_pkg(0),
-       analyzer(0),
-       build(false),
-       clean(0),
-       dry_run(false),
-       help(false),
-       verbose(1),
-       show_progress(false),
-       build_file("Build"),
-       jobs(1),
-       conf_all(false),
-       conf_only(false),
-       build_all(false),
-       create_makefile(false)
-{
-       string   analyze_mode;
-       string   work_dir;
-       bool     full_paths=false;
-       unsigned max_depth=5;
-
-       GetOpt getopt;
-       getopt.add_option('a', "analyze",    analyze_mode, GetOpt::REQUIRED_ARG);
-       getopt.add_option('b', "build",      build,        GetOpt::NO_ARG);
-       getopt.add_option('c', "clean",      clean,        GetOpt::NO_ARG);
-       getopt.add_option('f', "file",       build_file,   GetOpt::REQUIRED_ARG);
-       getopt.add_option('h', "help",       help,         GetOpt::NO_ARG);
-       getopt.add_option('j', "jobs",       jobs,         GetOpt::REQUIRED_ARG);
-       getopt.add_option('n', "dry-run",    dry_run,      GetOpt::NO_ARG);
-       getopt.add_option('v', "verbose",    verbose,      GetOpt::NO_ARG);
-       getopt.add_option('A', "conf-all",   conf_all,     GetOpt::NO_ARG);
-       getopt.add_option('B', "build-all",  build_all,    GetOpt::NO_ARG);
-       getopt.add_option('C', "chdir",      work_dir,     GetOpt::REQUIRED_ARG);
-       getopt.add_option('P', "progress",   show_progress, GetOpt::NO_ARG);
-       getopt.add_option('W', "what-if",    what_if,      GetOpt::REQUIRED_ARG);
-       getopt.add_option(     "conf-only",  conf_only,    GetOpt::NO_ARG);
-       getopt.add_option(     "full-paths", full_paths,   GetOpt::NO_ARG);
-       //getopt.add_option(     "makefile",   create_makefile, GetOpt::NO_ARG);
-       getopt.add_option(     "max-depth",  max_depth,    GetOpt::REQUIRED_ARG);
-       getopt(argc, argv);
-
-       if(!analyze_mode.empty())
-       {
-               analyzer=new Analyzer(*this);
-
-               if(analyze_mode=="deps")
-                       analyzer->set_mode(Analyzer::DEPS);
-               else if(analyze_mode=="alldeps")
-                       analyzer->set_mode(Analyzer::ALLDEPS);
-               else if(analyze_mode=="rebuild")
-                       analyzer->set_mode(Analyzer::REBUILD);
-               else if(analyze_mode=="rdeps")
-                       analyzer->set_mode(Analyzer::RDEPS);
-               else
-                       throw UsageError("Invalid analyze mode");
-
-               analyzer->set_max_depth(max_depth);
-               analyzer->set_full_paths(full_paths);
-       }
-       else if(!clean && !create_makefile)
-               build=true;
-
-       const vector<string> &args=getopt.get_args();
-       for(vector<string>::const_iterator i=args.begin(); i!=args.end(); ++i)
-       {
-               unsigned equal=i->find('=');
-               if(equal!=string::npos)
-                       cmdline_options.insert(StringMap::value_type(i->substr(0, equal), i->substr(equal+1)));
-               else
-                       cmdline_targets.push_back(*i);
-       }
-
-       if(cmdline_targets.empty())
-               cmdline_targets.push_back("default");
-
-       if(!work_dir.empty())
-               chdir(work_dir.c_str());
-
-       cwd=getcwd();
-
-       Architecture &native_arch=archs.insert(ArchMap::value_type("native", Architecture(*this, "native"))).first->second;
-       native_arch.set_tool("CC",  "gcc");
-       native_arch.set_tool("CXX", "g++");
-       native_arch.set_tool("LD",  "gcc");
-       native_arch.set_tool("LXX", "g++");
-       native_arch.set_tool("AR",  "ar");
-
-       const char *home=getenv("HOME");
-       if(home)
-               load_build_file((Path(home)/".builderrc").str());
-}
-
-/**
-Gets a package with the specified name, possibly creating it.
-
-@param   n  Package name
-
-@return  Pointer to the package, or 0 if the package could not be located
-*/
-Package *Builder::get_package(const string &n)
-{
-       PackageMap::iterator i=packages.find(n);
-       if(i!=packages.end())
-               return i->second;
-
-       // Try to get source directory with pkgconfig
-       list<string> argv;
-       argv.push_back("pkg-config");
-       argv.push_back("--variable=source");
-       argv.push_back(n);
-       if(verbose>=4)
-               cout<<"Running "<<join(argv.begin(), argv.end())<<'\n';
-       string srcdir=strip(run_command(argv));
-
-       PathList dirs;
-       if(!srcdir.empty())
-               dirs.push_back(srcdir);
-
-       // Make some other guesses about the source directory
-       string dirname=n;
-       if(!dirname.compare(0, 3, "msp"))
-               dirname.erase(0, 3);
-       dirs.push_back(cwd/dirname);
-       dirs.push_back(cwd/".."/dirname);
-
-       // Go through the candidate directories and look for a Build file
-       for(PathList::iterator j=dirs.begin(); j!=dirs.end(); ++j)
-               if(!load_build_file(*j/"Build"))
-               {
-                       i=packages.find(n);
-                       if(i!=packages.end())
-                               return i->second;
-                       break;
-               }
-
-       // Package source not found - create a binary package
-       Package *pkg=BinaryPackage::from_pkgconfig(*this, n);
-
-       packages.insert(PackageMap::value_type(n, pkg));
-
-       if(!pkg)
-               problem(n, "not found");
-
-       return pkg;
-}
-
-/**
-Returns the target with the given name, or 0 if no such target exists.
-*/
-Target *Builder::get_target(const string &n) const
-{
-       TargetMap::const_iterator i=targets.find(n);
-       if(i!=targets.end())
-               return i->second;
-       return 0;
-}
-
-/**
-Tries to locate a header included from a given location and with a given include
-path.  Considers known targets as well as existing files.  If a matching target
-is not found but a file exists, a new SystemHeader target will be created and
-returned.
-*/
-Target *Builder::get_header(const string &include, const string &arch, const string &from, const list<string> &path)
-{
-       string hash(8, 0);
-       update_hash(hash, from);
-       for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
-               update_hash(hash, *i);
-
-       string id=hash+include;
-       TargetMap::iterator i=includes.find(id);
-       if(i!=includes.end())
-               return i->second;
-
-       static string cxx_ver;
-       if(cxx_ver.empty())
-       {
-               StringList argv;
-               argv.push_back(get_architecture(arch).get_tool("CXX"));
-               argv.push_back("--version");
-               cxx_ver=Regex(" ([0-9.]+) ").match(run_command(argv))[1].str;
-               while(!cxx_ver.empty() && !exists(Path("/usr/include/c++")/cxx_ver))
-               {
-                       unsigned dot=cxx_ver.rfind('.');
-                       if(dot==string::npos)
-                               break;
-                       cxx_ver.erase(dot);
-               }
-               if(verbose>=5)
-                       cout<<"C++ version is "<<cxx_ver<<'\n';
-       }
-
-       string fn=include.substr(1);
-       if(verbose>=5)
-               cout<<"Looking for include "<<fn<<" with path "<<join(path.begin(), path.end())<<'\n';
-
-       StringList syspath;
-       if(include[0]=='\"')
-               syspath.push_back(from);
-       if(arch=="native")
-               syspath.push_back("/usr/include");
-       else
-               syspath.push_back("/usr/"+get_architecture(arch).get_prefix()+"/include");
-       syspath.push_back((Path("/usr/include/c++/")/cxx_ver/fn).str());
-
-       Target *tgt=0;
-       for(list<string>::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
-               tgt=get_header(cwd/ *j/fn);
-       for(list<string>::const_iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
-               tgt=get_header(Path(*j)/fn);
-
-       includes.insert(TargetMap::value_type(id, tgt));
-
-       return tgt;
-}
-
-/**
-Tries to locate a library with the given library path.  Considers known targets
-as well as existing files.  If a matching target is not found but a file exists,
-a new SystemLibrary target will be created and returned.
-
-@param   lib   Name of the library to get (without "lib" prefix or extension)
-@param   path  List of paths to search for the library
-@param   mode  Shared / static mode
-
-@return  Some kind of library target, if a match was found
-*/
-Target *Builder::get_library(const string &lib, const string &arch, const list<string> &path, LibMode mode)
-{
-       string hash(8, 0);
-       for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
-               update_hash(hash, *i);
-
-       //XXX Incorporate mode into id
-       string id=hash+lib;
-       TargetMap::iterator i=libraries.find(id);
-       if(i!=libraries.end())
-               return i->second;
-
-       StringList syspath;
-       if(arch=="native")
-       {
-               syspath.push_back("/lib");
-               syspath.push_back("/usr/lib");
-       }
-       else
-               syspath.push_back("/usr/"+get_architecture(arch).get_prefix()+"/lib");
-
-       if(verbose>=5)
-               cout<<"Looking for library "<<lib<<" with path "<<join(path.begin(), path.end())<<'\n';
-
-       Target *tgt=0;
-       for(StringList::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
-               tgt=get_library(lib, arch, cwd/ *j, mode);
-       for(StringList::iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
-               tgt=get_library(lib, arch, *j, mode);
-
-       libraries.insert(TargetMap::value_type(id, tgt));
-
-       return tgt;
-}
-
-const Architecture &Builder::get_architecture(const string &arch) const
-{
-       ArchMap::const_iterator i=archs.find(arch);
-       if(i==archs.end())
-               throw InvalidParameterValue("Unknown architecture");
-
-       return i->second;
-}
-
-void Builder::apply_profile_template(Config &config, const string &pt) const
-{
-       vector<string> parts=split(pt, '-');
-
-       for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
-       {
-               ProfileTemplateMap::const_iterator j=profile_tmpl.find(*i);
-               if(j==profile_tmpl.end())
-                       continue;
-
-               config.update(j->second);
-       }
-}
-
-void Builder::problem(const string &p, const string &d)
-{
-       problems.push_back(Problem(p, d));
-}
-
-/**
-Adds a target to both the target map and the new target queue.  Called from
-Target constructor.
-*/
-void Builder::add_target(Target *t)
-{
-       targets.insert(TargetMap::value_type(t->get_name(), t));
-       new_tgts.push_back(t);
-}
-
-int Builder::main()
-{
-       if(load_build_file(cwd/build_file))
-       {
-               cerr<<"No build info here.\n";
-               return 1;
-       }
-
-       main_pkg->configure(cmdline_options, conf_all?2:1);
-
-       if(help)
-       {
-               usage(0, "builder", false);
-               cout<<'\n';
-               package_help();
-               return 0;
-       }
-
-       if(!conf_only && create_targets())
-               return 1;
-
-       PackageList all_reqs=main_pkg->collect_requires();
-
-       for(PackageList::const_iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
-       {
-               SourcePackage *spkg=dynamic_cast<SourcePackage *>(*i);
-               string prob;
-               if(spkg && spkg->get_arch()!=main_pkg->get_arch())
-                       problem(spkg->get_name(), format("wrong architecture (%s)", spkg->get_arch()));
-       }
-
-       if(conf_only)
-               return 0;
-
-       cout<<all_reqs.size()<<" active packages, "<<targets.size()<<" targets\n";
-       if(verbose>=2)
-       {
-               for(PackageList::const_iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
-               {
-                       cout<<' '<<(*i)->get_name();
-                       if(dynamic_cast<SourcePackage *>(*i))
-                               cout<<'*';
-                       unsigned count=0;
-                       unsigned ood_count=0;
-                       for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
-                               if(j->second->get_package()==*i)
-                               {
-                                       ++count;
-                                       if(j->second->get_rebuild())
-                                               ++ood_count;
-                               }
-                       if(count)
-                       {
-                               cout<<" ("<<count<<" targets";
-                               if(ood_count)
-                                       cout<<", "<<ood_count<<" out-of-date";
-                               cout<<')';
-                       }
-                       cout<<'\n';
-               }
-       }
-
-       if(analyzer)
-               analyzer->analyze();
-
-       if(!problems.empty())
-       {
-               cerr<<"The following problems were detected:\n";
-               for(ProblemList::iterator i=problems.begin(); i!=problems.end(); ++i)
-                       cerr<<"  "<<i->package<<": "<<i->descr<<'\n';
-               cerr<<"Please fix them and try again.\n";
-               return 1;
-       }
-
-       //if(create_makefile
-
-       if(clean)
-               exit_code=do_clean();
-       else if(build)
-               exit_code=do_build();
-
-       return exit_code;
-}
-
-Builder::~Builder()
-{
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-               delete i->second;
-       for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
-               delete i->second;
-       delete analyzer;
-}
-
-void Builder::usage(const char *reason, const char *argv0, bool brief)
-{
-       if(reason)
-               cerr<<reason<<'\n';
-
-       if(brief)
-               cerr<<"Usage: "<<argv0<<" [-a|--analyze MODE] [-b|--build] [-c|--clean] [-f|--file FILE] [-h|--help] [-j|--jobs NUM] [-n||--dry-run] [-v|--verbose] [-A|--conf-all] [-B|--build-all] [-C|--chdir DIRECTORY] [-W|--what-if FILE] [--chrome] [--conf-only] [--full-paths] [--max-depth NUM] [<target> ...]";
-       else
-       {
-               cerr<<
-                       "Usage: "<<argv0<<" [options] [<target> ...]\n"
-                       "\n"
-                       "Options:\n"
-                       "  -a, --analyze MODE  Perform analysis.  MODE can be deps, alldeps or rebuild.\n"
-                       "  -b, --build         Perform build even if doing analysis.\n"
-                       "  -c, --clean         Clean buildable targets.\n"
-                       "  -f, --file FILE     Read info from FILE instead of Build.\n"
-                       "  -h, --help          Print this message.\n"
-                       "  -j, --jobs NUM      Run NUM commands at once, whenever possible.\n"
-                       "  -n, --dry-run       Don't actually do anything, only show what would be done.\n"
-                       "  -v, --verbose       Print more information about what's going on.\n"
-                       "  -A, --conf-all      Apply configuration to all packages.\n"
-                       "  -B, --build-all     Build all targets unconditionally.\n"
-                       "  -C, --chdir DIR     Change to DIR before doing anything else.\n"
-                       "  -P, --progress      Display progress while building.\n"
-                       "  -W, --what-if FILE  Pretend that FILE has changed.\n"
-                       "  --conf-only         Stop after configuring packages.\n"
-                       "  --full-paths        Output full paths in analysis.\n"
-                       //"  --makefile          Create a makefile for this package.\n"
-                       "  --max-depth NUM     Maximum depth to show in analysis.\n";
-       }
-}
-
-/**
-Loads the given build file.
-
-@param   fn  Path to the file
-
-@return  0 on success, -1 if the file could not be opened
-*/
-int Builder::load_build_file(const Path &fn)
-{
-       ifstream in(fn.str().c_str());
-       if(!in)
-               return -1;
-
-       if(verbose>=3)
-               cout<<"Reading "<<fn<<'\n';
-
-       DataFile::Parser parser(in, fn.str());
-       Loader loader(*this, fn.subpath(0, fn.size()-1));
-       loader.load(parser);
-
-       return 0;
-}
-
-/**
-Creates targets for all packages and prepares them for building.
-
-@return  0 if everything went ok, -1 if something bad happened and a build
-         shouldn't be attempted
-*/
-int Builder::create_targets()
-{
-       Target *world=new VirtualTarget(*this, "world");
-
-       Target *def_tgt=new VirtualTarget(*this, "default");
-       world->add_depend(def_tgt);
-
-       Target *install=new VirtualTarget(*this, "install");
-       world->add_depend(install);
-
-       Target *tarballs=new VirtualTarget(*this, "tarballs");
-       world->add_depend(tarballs);
-
-       PackageList all_reqs=main_pkg->collect_requires();
-       for(PackageList::iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
-       {
-               SourcePackage *spkg=dynamic_cast<SourcePackage *>(*i);
-               if(!spkg)
-                       continue;
-
-               const ComponentList &components=spkg->get_components();
-               for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
-                       j->create_targets();
-
-               if(spkg->get_install_flags()&(SourcePackage::LIB|SourcePackage::INCLUDE))
-               {
-                       PkgConfig *pc=new PkgConfig(*this, *spkg);
-                       install->add_depend(new Install(*this, *spkg, *pc));
-               }
-
-               tarballs->add_depend(new TarBall(*this, *spkg));
-       }
-
-       // Find dependencies until no new targets are created
-       while(!new_tgts.empty())
-       {
-               Target *tgt=new_tgts.front();
-               new_tgts.erase(new_tgts.begin());
-               tgt->find_depends();
-               if(!tgt->get_depends_ready())
-                       new_tgts.push_back(tgt);
-       }
-
-       // Apply what-ifs
-       for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
-       {
-               Target *tgt=get_target((cwd/ *i).str());
-               if(!tgt)
-               {
-                       cerr<<"Unknown what-if target "<<*i<<'\n';
-                       return -1;
-               }
-               tgt->touch();
-       }
-
-       // Make the cmdline target depend on all targets mentioned on the command line
-       Target *cmdline=new VirtualTarget(*this, "cmdline");
-       bool build_world=false;
-       for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
-       {
-               Target *tgt=get_target(*i);
-               if(!tgt)
-                       tgt=get_target((cwd/ *i).str());
-               if(!tgt)
-               {
-                       cerr<<"I don't know anything about "<<*i<<'\n';
-                       return -1;
-               }
-               if(tgt==world)
-                       build_world=true;
-               cmdline->add_depend(tgt);
-       }
-
-       /* If world is to be built, prepare cmdline.  If not, add cmdline to world
-          and prepare world.  I don't really like this, but it keeps the graph
-          acyclic. */
-       if(build_world)
-               cmdline->prepare();
-       else
-       {
-               world->add_depend(cmdline);
-               world->prepare();
-       }
-
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-               if(SourcePackage *spkg=dynamic_cast<SourcePackage *>(i->second))
-                       spkg->get_deps_cache().save();
-
-       return 0;
-}
-
-/**
-Check if a header exists, either as a target or a file.  Either an existing
-target or a new SystemHeader target will be returned.
-*/
-Target *Builder::get_header(const Msp::Path &fn)
-{
-       Target *tgt=get_target(fn.str());
-       if(tgt) return tgt;
-
-       if(exists(fn))
-       {
-               tgt=new SystemHeader(*this, fn.str());
-               return tgt;
-       }
-       return 0;
-}
-
-Target *Builder::get_library(const string &lib, const string &arch, const Path &path, LibMode mode)
-{
-       // Populate a list of candidate filenames
-       StringList candidates;
-
-       if(mode!=ALL_STATIC)
-       {
-               if(arch=="win32")
-                       candidates.push_back("lib"+lib+".dll");
-               else
-                       candidates.push_back("lib"+lib+".so");
-       }
-
-       /* Static libraries are always considered, since sometimes shared versions
-       may not be available */
-       candidates.push_back("lib"+lib+".a");
-       if(arch=="win32")
-               candidates.push_back("lib"+lib+".dll.a");
-
-       for(StringList::iterator i=candidates.begin(); i!=candidates.end(); ++i)
-       {
-               string full=(path/ *i).str();
-               Target *tgt=get_target(full);
-
-               if(tgt)
-               {
-                       Target *real_tgt=tgt;
-                       if(dynamic_cast<Install *>(tgt))
-                               real_tgt=real_tgt->get_depends().front();
-
-                       /* Ignore dynamic libraries from local packages unless library mode is
-                       DYNAMIC */
-                       if(dynamic_cast<SharedLibrary *>(real_tgt) && mode!=DYNAMIC)
-                               continue;
-                       else if(tgt)
-                               return tgt;
-               }
-               else if(exists(full))
-               {
-                       tgt=new SystemLibrary(*this, full);
-                       return tgt;
-               }
-       }
-
-       return 0;
-}
-
-/**
-Updates a hash with a string.  This is used from get_header and get_library.
-*/
-void Builder::update_hash(string &hash, const string &value)
-{
-       for(unsigned i=0; i<value.size(); ++i)
-               hash[i%hash.size()]^=value[i];
-}
-
-/**
-This function supervises the build process, starting new actions when slots
-become available.
-*/
-int Builder::do_build()
-{
-       Target *cmdline=get_target("cmdline");
-
-       unsigned total=cmdline->count_rebuild();
-       if(!total)
-       {
-               cout<<"Already up to date\n";
-               return 0;
-       }
-       cout<<"Will build "<<total<<" target(s)\n";
-
-       vector<Action *> actions;
-
-       unsigned count=0;
-
-       bool fail=false;
-       bool finish=false;
-
-       while(!finish)
-       {
-               if(actions.size()<jobs && !fail)
-               {
-                       Target *tgt=cmdline->get_buildable_target();
-                       if(tgt)
-                       {
-                               Action *action=tgt->build();
-                               if(action)
-                                       actions.push_back(action);
-
-                               if(show_progress)
-                               {
-                                       cout<<count<<" of "<<total<<" targets built\033[1G";
-                                       cout.flush();
-                               }
-                       }
-                       else if(actions.empty())
-                               finish=true;
-               }
-               else
-                       Time::sleep(10*Time::msec);
-
-               for(unsigned i=0; i<actions.size();)
-               {
-                       int status=actions[i]->check();
-                       if(status>=0)
-                       {
-                               ++count;
-
-                               delete actions[i];
-                               actions.erase(actions.begin()+i);
-                               if(status>0)
-                                       fail=true;
-                               if(actions.empty() && fail)
-                                       finish=true;
-                       }
-                       else
-                               ++i;
-               }
-       }
-
-       if(show_progress)
-               cout<<"\033[K";
-       if(fail)
-               cout<<"Build failed\n";
-       else if(show_progress)
-               cout<<"Build complete\n";
-
-       return fail?1:0;
-}
-
-/**
-Cleans buildable targets.  If clean is 1, cleans only this package.  If
-clean is 2 or greater, cleans all buildable packages.
-*/
-int Builder::do_clean()
-{
-       // Cleaning doesn't care about ordering, so a simpler method can be used
-
-       set<Target *> clean_tgts;
-       TargetList queue;
-       queue.push_back(get_target("cmdline"));
-
-       while(!queue.empty())
-       {
-               Target *tgt=queue.front();
-               queue.erase(queue.begin());
-
-               if(tgt->get_buildable() && (tgt->get_package()==main_pkg || clean>=2))
-                       clean_tgts.insert(tgt);
-
-               const TargetList &deps=tgt->get_depends();
-               for(TargetList::const_iterator i=deps.begin(); i!=deps.end(); ++i)
-                       if(!clean_tgts.count(*i))
-                               queue.push_back(*i);
-       }
-
-       for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
-       {
-               Action *action=new Unlink(*this, **i);
-               while(action->check()<0);
-               delete action;
-       }
-
-       return 0;
-}
-
-/**
-Prints out information about the default package.
-*/
-void Builder::package_help()
-{
-       const Config &config=main_pkg->get_config();
-       const Config::OptionMap &options=config.get_options();
-
-       cout<<"Required packages:\n  ";
-       const PackageList &requires=main_pkg->get_requires();
-       for(PackageList::const_iterator i=requires.begin(); i!=requires.end(); ++i)
-       {
-               if(i!=requires.begin())
-                       cout<<", ";
-               cout<<(*i)->get_name();
-       }
-       cout<<"\n\n";
-       cout<<"Package configuration:\n";
-       for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
-       {
-               const Config::Option &opt=i->second;
-               cout<<"  "<<opt.name<<": "<<opt.descr<<" ("<<opt.value<<") ["<<opt.defv<<"]\n";
-       }
-}
-
-Application::RegApp<Builder> Builder::reg;
-
-
-Builder::Loader::Loader(Builder &b, const Path &s):
-       bld(b),
-       src(s)
-{
-       add("architecture", &Loader::architecture);
-       add("binary_package", &Loader::binpkg);
-       add("profile", &Loader::profile);
-       add("package", &Loader::package);
-}
-
-void Builder::Loader::architecture(const string &n)
-{
-       Architecture arch(bld, n);
-       load_sub(arch);
-       bld.archs.insert(ArchMap::value_type(n, arch));
-}
-
-void Builder::Loader::binpkg(const string &n)
-{
-       BinaryPackage *pkg=new BinaryPackage(bld, n);
-       load_sub(*pkg);
-       bld.packages.insert(PackageMap::value_type(n, pkg));
-}
-
-void Builder::Loader::profile(const string &n)
-{
-       StringMap prf;
-       load_sub<ProfileLoader>(prf);
-       bld.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
-}
-
-void Builder::Loader::package(const string &n)
-{
-       SourcePackage *pkg=new SourcePackage(bld, n, src);
-       if(!bld.main_pkg)
-               bld.main_pkg=pkg;
-
-       load_sub(*pkg);
-       bld.packages.insert(PackageMap::value_type(n, pkg));
-}
-
-
-Builder::ProfileLoader::ProfileLoader(StringMap &p):
-       profile(p)
-{
-       add("option", &ProfileLoader::option);
-}
-
-void Builder::ProfileLoader::option(const string &o, const string &v)
-{
-       profile.insert(StringMap::value_type(o, v));
-}