]> 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 723930a..0000000
+++ /dev/null
@@ -1,837 +0,0 @@
-#include <fstream>
-#include <iostream>
-#include <msp/progress.h>
-#include <msp/core/error.h>
-#include <msp/getopt++/getopt++.h>
-#include <msp/parser/parser.h>
-#include <msp/path/utils.h>
-#include <msp/strings/utils.h>
-#include <msp/time/units.h>
-#include <msp/time/utils.h>
-#include "action.h"
-#include "analyzer.h"
-#include "builder.h"
-#include "executable.h"
-#include "header.h"
-#include "install.h"
-#include "misc.h"
-#include "objectfile.h"
-#include "package.h"
-#include "pkgconfig.h"
-#include "sharedlibrary.h"
-#include "staticlibrary.h"
-#include "systemlibrary.h"
-#include "virtualtarget.h"
-
-using namespace std;
-using namespace Msp;
-
-Builder::Builder(int argc, char **argv):
-       analyzer(0),
-       do_build(false),
-       dry_run(false),
-       help(false),
-       verbose(1),
-       chrome(false),
-       build_file("Build"),
-       jobs(1),
-       conf_all(false),
-       conf_only(false),
-       build_all(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",      do_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('W', "what-if",    what_if,      GetOpt::REQUIRED_ARG);
-       getopt.add_option(     "chrome",     chrome,       GetOpt::NO_ARG);
-       getopt.add_option(     "conf-only",  conf_only,    GetOpt::NO_ARG);
-       getopt.add_option(     "full-paths", full_paths,   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
-               do_build=true;
-
-       const list<string> &args=getopt.get_args();
-       for(list<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=Path::getcwd();
-
-       archs.insert(StringMap::value_type("native", ""));
-       archs.insert(StringMap::value_type("arm", "arm-linux-gnu-"));
-       archs.insert(StringMap::value_type("win32", "i586-mingw32msvc-"));
-
-       StringMap &native_tools=tools.insert(ToolMap::value_type("native", StringMap())).first->second;
-       native_tools.insert(StringMap::value_type("CC",   "gcc"));
-       native_tools.insert(StringMap::value_type("CXX",  "g++"));
-       native_tools.insert(StringMap::value_type("LD",   "gcc"));
-       native_tools.insert(StringMap::value_type("LDXX", "g++"));
-       native_tools.insert(StringMap::value_type("AR",   "ar"));
-
-       StringMap &release_profile=profile_tmpl.insert(ProfileTemplateMap::value_type("release", StringMap())).first->second;
-       release_profile.insert(StringMap::value_type("optimize", "3"));
-       release_profile.insert(StringMap::value_type("outdir",   "$profile"));
-
-       StringMap &debug_profile=profile_tmpl.insert(ProfileTemplateMap::value_type("debug", StringMap())).first->second;
-       debug_profile.insert(StringMap::value_type("debug",  "1"));
-       debug_profile.insert(StringMap::value_type("outdir", "$profile"));
-
-       for(StringMap::iterator i=archs.begin(); i!=archs.end(); ++i)
-       {
-               if(i->first=="native")
-                       continue;
-               
-               StringMap &arch_profile=profile_tmpl.insert(ProfileTemplateMap::value_type(i->first, StringMap())).first->second;
-               arch_profile.insert(StringMap::value_type("arch",   i->first));
-               arch_profile.insert(StringMap::value_type("prefix", "$HOME/local/$arch"));
-       }
-}
-
-/**
-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);
-       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=Package::create(*this, n);
-       packages.insert(PackageMap::value_type(n, pkg));
-       if(pkg)
-               new_pkgs.push_back(pkg);
-
-       return pkg;
-}
-
-/**
-Returns the target with the given name, or 0 if no such target exists.
-*/
-Target *Builder::get_target(const string &n)
-{
-       TargetMap::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 &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;
-
-       string fn=include.substr(1);
-       Target *tgt=0;
-       if(include[0]=='"' && (tgt=get_header(Path::Path(from)/fn)))
-               ;
-       else if((tgt=get_header(Path::Path("/usr/include")/fn)))
-               ;
-       //XXX Determine the C++ header location dynamically
-       else if((tgt=get_header(Path::Path("/usr/include/c++/4.1.2")/fn)))
-               ;
-       else
-       {
-               for(list<string>::const_iterator j=path.begin(); (j!=path.end() && !tgt); ++j)
-                       tgt=get_header(cwd/ *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 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;
-
-       Target *tgt=0;
-       if((tgt=get_library(lib, "/lib", mode)))
-               ;
-       else if((tgt=get_library(lib, "/usr/lib", mode)))
-               ;
-       else
-       {
-               for(list<string>::const_iterator j=path.begin(); (j!=path.end() && !tgt); ++j)
-                       tgt=get_library(lib, cwd/ *j, mode);
-       }
-
-       libraries.insert(TargetMap::value_type(id, tgt));
-
-       return tgt;
-}
-
-const string &Builder::get_arch_prefix(const string &arch) const
-{
-       StringMap::const_iterator i=archs.find(arch);
-       if(i==archs.end())
-               throw InvalidParameterValue("Unknown architecture");
-
-       return i->second;
-}
-
-string Builder::get_tool(const std::string &tool, const std::string &arch)
-{
-       ToolMap::iterator i=tools.find(arch);
-       if(i!=tools.end())
-       {
-               StringMap::iterator j=i->second.find(tool);
-               if(j!=i->second.end())
-                       return j->second;
-       }
-
-       // Either the arch, or the tool within the arch was not found
-       i=tools.find("native");
-       StringMap::iterator j=i->second.find(tool);
-       if(j==i->second.end())
-               throw InvalidParameterValue("Unknown tool");
-
-       return get_arch_prefix(arch)+j->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);
-       }
-}
-
-int Builder::main()
-{
-       if(load_build_file(cwd/build_file))
-       {
-               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();
-       }
-
-       default_pkg->configure(cmdline_options, conf_all?2:1);
-
-       if(help)
-       {
-               usage(0, "builder", false);
-               cout<<'\n';
-               package_help();
-               return 0;
-       }
-
-       StringMap problems;
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-       {
-               string prob;
-               if(!i->second)
-                       prob="missing";
-               else if(i->second->get_buildable() && i->second->get_arch()!=default_pkg->get_arch())
-                       prob="wrong architecture ("+i->second->get_arch()+")";
-               if(!prob.empty())
-                       problems.insert(StringMap::value_type(i->first, prob));
-       }
-
-       if(!problems.empty())
-       {
-               cerr<<"The following problems were detected:\n";
-               for(StringMap::iterator i=problems.begin(); i!=problems.end(); ++i)
-                       cerr<<"  "<<i->first<<": "<<i->second<<'\n';
-               cerr<<"Please fix them and try again.\n";
-               return 1;
-       }
-
-       if(conf_only)
-               return 0;
-
-       if(create_targets())
-               return 1;
-
-       cout<<packages.size()<<" packages, "<<targets.size()<<" targets\n";
-       if(verbose>=2)
-       {
-               for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-               {
-                       cout<<' '<<i->second->get_name();
-                       if(i->second->get_buildable())
-                               cout<<'*';
-                       unsigned count=0;
-                       unsigned ood_count=0;
-                       for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
-                               if(j->second->get_package()==i->second)
-                               {
-                                       ++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(do_build)
-               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"
-                       "  -W, --what-if FILE  Pretend that FILE has changed.\n"
-                       "  --chrome            Use extra chrome to print status.\n"
-                       "  --conf-only         Stop after configuring packages.\n"
-                       "  --full-paths        Output full paths in analysis.\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::Path &fn)
-{
-       ifstream in(fn.str().c_str());
-       if(!in)
-               return -1;
-
-       Parser::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");
-       add_target(world);
-
-       Target *def_tgt=new VirtualTarget(*this, "default");
-       add_target(def_tgt);
-       world->add_depend(def_tgt);
-
-       Target *install=new VirtualTarget(*this, "install");
-       add_target(install);
-       world->add_depend(install);
-
-       for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
-       {
-               if(!i->second)
-                       continue;
-               if(!i->second->get_buildable())
-                       continue;
-
-               Path::Path inst_base;
-               if(i->second->get_buildable() && i->second->get_install_flags())
-                       inst_base=i->second->get_prefix();
-
-               const ComponentList &components=i->second->get_components();
-               for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
-               {
-                       // Collect all files belonging to the component
-                       PathList files;
-                       const PathList &sources=j->get_sources();
-                       for(PathList::const_iterator k=sources.begin(); k!=sources.end(); ++k)
-                       {
-                               struct stat st;
-                               stat(*k, st);
-                               if(S_ISDIR(st.st_mode))
-                               {
-                                       list<string> sfiles=list_files(*k);
-                                       for(list<string>::iterator l=sfiles.begin(); l!=sfiles.end(); ++l)
-                                               files.push_back(*k / *l);
-                               }
-                               else
-                                       files.push_back(*k);
-                       }
-
-                       bool build_exe=j->get_type()!=Component::HEADERS;
-                       
-                       list<ObjectFile *> objs;
-                       for(PathList::iterator k=files.begin(); k!=files.end(); ++k)
-                       {
-                               string basename=(*k)[-1];
-                               string ext=Path::splitext(basename).ext;
-                               if((ext==".cpp" || ext==".c") && build_exe)
-                               {
-                                       SourceFile *src=new SourceFile(*this, &*j, k->str());
-                                       add_target(src);
-
-                                       // Compile sources
-                                       ObjectFile *obj=new ObjectFile(*this, *j, *src);
-                                       add_target(obj);
-                                       objs.push_back(obj);
-                               }
-                               else if(ext==".h")
-                               {
-                                       Target *hdr=get_target(k->str());
-                                       if(!hdr)
-                                       {
-                                               hdr=new Header(*this, &*j, k->str());
-                                               add_target(hdr);
-                                       }
-
-                                       // Install headers if requested
-                                       if(!j->get_install_headers().empty())
-                                       {
-                                               Path::Path inst_path=inst_base/"include"/j->get_install_headers()/basename;
-                                               Install *inst=new Install(*this, *i->second, *hdr, inst_path.str());
-                                               add_target(inst);
-                                               install->add_depend(inst);
-                                       }
-                               }
-                       }
-
-                       if(build_exe)
-                       {
-                               Executable    *exe=0;
-                               StaticLibrary *slib=0;
-                               if(j->get_type()==Component::LIBRARY)
-                               {
-                                       exe=new SharedLibrary(*this, *j, objs);
-                                       slib=new StaticLibrary(*this, *j, objs);
-                                       add_target(slib);
-                               }
-                               else
-                                       exe=new Executable(*this, *j, objs);
-                               
-                               add_target(exe);
-                               if(i->second==default_pkg)
-                               {
-                                       def_tgt->add_depend(exe);
-                                       if(slib) def_tgt->add_depend(slib);
-                               }
-                               else
-                               {
-                                       world->add_depend(exe);
-                                       if(slib) world->add_depend(slib);
-                               }
-
-                               if(j->get_install())
-                               {
-                                       string inst_dir;
-                                       if(j->get_type()==Component::PROGRAM)
-                                               inst_dir="bin";
-                                       else if(j->get_type()==Component::LIBRARY)
-                                               inst_dir="lib";
-                                       if(!inst_dir.empty())
-                                       {
-                                               Install *inst=new Install(*this, *i->second, *exe, (inst_base/inst_dir/Path::basename(exe->get_name())).str());
-                                               add_target(inst);
-                                               install->add_depend(inst);
-
-                                               if(slib)
-                                               {
-                                                       inst=new Install(*this, *i->second, *slib, (inst_base/inst_dir/Path::basename(slib->get_name())).str());
-                                                       add_target(inst);
-                                                       install->add_depend(inst);
-                                               }
-                                       }
-                               }
-                       }
-               }
-
-               if(i->second->get_install_flags()&(Package::LIB|Package::INCLUDE))
-               {
-                       PkgConfig *pc=new PkgConfig(*this, *i->second);
-                       add_target(pc);
-                       Install *inst=new Install(*this, *i->second, *pc, (inst_base/"lib"/"pkgconfig"/Path::basename(pc->get_name())).str());
-                       add_target(inst);
-                       install->add_depend(inst);
-               }
-       }
-
-       // 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");
-       add_target(cmdline);
-       world->add_depend(cmdline);
-       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;
-               }
-               cmdline->add_depend(tgt);
-       }
-
-       world->prepare();
-
-       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::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;
-}
-
-Target *Builder::get_library(const string &lib, const Path::Path &path, LibMode mode)
-{
-       string full;
-       if(mode!=DYNAMIC)
-       {
-               full=(path/("lib"+lib+".a")).str();
-               Target *tgt=get_target(full);
-               // Targets can only be associated with buildable packages (or no package at all)
-               if(tgt && (tgt->get_package() || mode==ALL_STATIC)) return tgt;
-       }
-       if(mode!=ALL_STATIC)
-       {
-               full=(path/("lib"+lib+".so")).str();
-               Target *tgt=get_target(full);
-               if(tgt) return tgt;
-       }
-
-       if(Path::exists(full))
-       {
-               Target *tgt=new SystemLibrary(*this, full);
-               add_target(tgt);
-               return tgt;
-       }
-
-       return 0;
-}
-
-/**
-Adds a target to both the target map and the new target queue.
-*/
-void Builder::add_target(Target *t)
-{
-       targets.insert(TargetMap::value_type(t->get_name(), t));
-       new_tgts.push_back(t);
-}
-
-/**
-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::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;
-
-       if(chrome)
-               cout<<"0 targets built\n";
-       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);
-                       }
-                       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;
-                               if(chrome)
-                               {
-                                       cout<<"\e["<<actions.size()+1<<'A';
-                                       cout<<count<<" targets built\n";
-                                       if(i)
-                                               cout<<"\e["<<i<<"B";
-                                       cout<<"\e[M";
-                                       if(i<actions.size()-1)
-                                               cout<<"\e["<<actions.size()-i-1<<"B";
-                                       cout.flush();
-                               }
-                               delete actions[i];
-                               actions.erase(actions.begin()+i);
-                               if(status>0)
-                                       fail=true;
-                               if(actions.empty() && fail)
-                                       finish=true;
-                       }
-                       else
-                               ++i;
-               }
-       }
-
-       if(fail)
-               cout<<"Build failed\n";
-
-       return fail?-1:0;
-}
-
-/**
-Prints out information about the default package.
-*/
-void Builder::package_help()
-{
-       const Config &config=default_pkg->get_config();
-       const Config::OptionMap &options=config.get_options();
-
-       cout<<"Required packages:\n  ";
-       const PkgRefList &requires=default_pkg->get_requires();
-       for(PkgRefList::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::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);
-}
-