source/builder.cpp

   1 /* $Id$
   2
   3 This file is part of builder
   4 Copyright © 2006-2009  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <set>
   9 #include <sys/utsname.h>
  10 #include <msp/core/except.h>
  11 #include <msp/core/getopt.h>
  12 #include <msp/datafile/parser.h>
  13 #include <msp/fs/dir.h>
  14 #include <msp/fs/stat.h>
  15 #include <msp/fs/utils.h>
  16 #include <msp/io/buffered.h>
  17 #include <msp/io/except.h>
  18 #include <msp/io/file.h>
  19 #include <msp/io/print.h>
  20 #include <msp/strings/formatter.h>
  21 #include <msp/strings/regex.h>
  22 #include <msp/strings/utils.h>
  23 #include <msp/time/units.h>
  24 #include <msp/time/utils.h>
  25 #include "action.h"
  26 #include "analyzer.h"
  27 #include "binarypackage.h"
  28 #include "builder.h"
  29 #include "header.h"
  30 #include "install.h"
  31 #include "misc.h"
  32 #include "package.h"
  33 #include "pkgconfig.h"
  34 #include "sharedlibrary.h"
  35 #include "sourcepackage.h"
  36 #include "systemlibrary.h"
  37 #include "tarball.h"
  38 #include "unlink.h"
  39 #include "virtualtarget.h"
  40
  41 using namespace std;
  42 using namespace Msp;
  43
  44 namespace {
  45
  46 void update_hash(string &hash, const string &value)
  47 {
  48         for(unsigned i=0; i<value.size(); ++i)
  49                 hash[i%hash.size()]^=value[i];
  50 }
  51
  52 }
  53
  54
  55 Builder::Builder(int argc, char **argv):
  56         main_pkg(0),
  57         analyzer(0),
  58         build(false),
  59         clean(0),
  60         dry_run(false),
  61         help(false),
  62         verbose(1),
  63         show_progress(false),
  64         build_file("Build"),
  65         jobs(1),
  66         conf_all(false),
  67         conf_only(false),
  68         build_all(false),
  69         create_makefile(false)
  70 {
  71         string analyze_mode;
  72         string work_dir;
  73         bool full_paths=false;
  74         unsigned max_depth=5;
  75         StringList cmdline_warn;
  76         string prfx;
  77         string arch;
  78
  79         GetOpt getopt;
  80         getopt.add_option('a', "analyze",    analyze_mode,  GetOpt::REQUIRED_ARG).set_help("Perform analysis.  MODE can be deps, alldeps or rebuild.", "MODE");
  81         getopt.add_option('b', "build",      build,         GetOpt::NO_ARG).set_help("Perform build even if doing analysis.");
  82         getopt.add_option('c', "clean",      clean,         GetOpt::NO_ARG).set_help("Clean buildable targets.");
  83         getopt.add_option('f', "file",       build_file,    GetOpt::REQUIRED_ARG).set_help("Read info from FILE instead of Build.", "FILE");
  84         getopt.add_option('h', "help",       help,          GetOpt::NO_ARG).set_help("Print this message.");
  85         getopt.add_option('j', "jobs",       jobs,          GetOpt::REQUIRED_ARG).set_help("Run NUM commands at once, whenever possible.", "NUM");
  86         getopt.add_option('n', "dry-run",    dry_run,       GetOpt::NO_ARG).set_help("Don't actually do anything, only show what would be done.");
  87         getopt.add_option('v', "verbose",    verbose,       GetOpt::NO_ARG).set_help("Print more information about what's going on.");
  88         getopt.add_option('A', "conf-all",   conf_all,      GetOpt::NO_ARG).set_help("Apply configuration to all packages.");
  89         getopt.add_option('B', "build-all",  build_all,     GetOpt::NO_ARG).set_help("Build all targets unconditionally.");
  90         getopt.add_option('C', "chdir",      work_dir,      GetOpt::REQUIRED_ARG).set_help("Change to DIR before doing anything else.", "DIR");
  91         getopt.add_option('P', "progress",   show_progress, GetOpt::NO_ARG).set_help("Display progress while building.");
  92         getopt.add_option('W', "what-if",    what_if,       GetOpt::REQUIRED_ARG).set_help("Pretend that FILE has changed.", "FILE");
  93         getopt.add_option(     "arch",       arch,          GetOpt::REQUIRED_ARG).set_help("Architecture to build for.", "ARCH");
  94         getopt.add_option(     "conf-only",  conf_only,     GetOpt::NO_ARG).set_help("Stop after configuring packages.");
  95         getopt.add_option(     "full-paths", full_paths,    GetOpt::NO_ARG).set_help("Output full paths in analysis.");
  96         getopt.add_option(     "max-depth",  max_depth,     GetOpt::REQUIRED_ARG).set_help("Maximum depth to show in analysis.", "NUM");
  97         getopt.add_option(     "prefix",     prfx,          GetOpt::REQUIRED_ARG).set_help("Directory to install things to.", "DIR");
  98         getopt.add_option(     "warnings",   cmdline_warn,  GetOpt::REQUIRED_ARG).set_help("Compiler warnings to use.", "LIST");
  99         usagemsg=getopt.generate_usage(argv[0])+" [<target> ...]";
 100         helpmsg=getopt.generate_help();
 101         getopt(argc, argv);
 102
 103         if(!analyze_mode.empty())
 104         {
 105                 analyzer=new Analyzer(*this);
 106
 107                 if(analyze_mode=="deps")
 108                         analyzer->set_mode(Analyzer::DEPS);
 109                 else if(analyze_mode=="alldeps")
 110                         analyzer->set_mode(Analyzer::ALLDEPS);
 111                 else if(analyze_mode=="rebuild")
 112                         analyzer->set_mode(Analyzer::REBUILD);
 113                 else if(analyze_mode=="rdeps")
 114                         analyzer->set_mode(Analyzer::RDEPS);
 115                 else
 116                         throw UsageError("Invalid analyze mode");
 117
 118                 analyzer->set_max_depth(max_depth);
 119                 analyzer->set_full_paths(full_paths);
 120         }
 121         else if(!clean && !create_makefile)
 122                 build=true;
 123
 124         const vector<string> &args=getopt.get_args();
 125         for(vector<string>::const_iterator i=args.begin(); i!=args.end(); ++i)
 126         {
 127                 unsigned equal=i->find('=');
 128                 if(equal!=string::npos)
 129                         cmdline_options.insert(StringMap::value_type(i->substr(0, equal), i->substr(equal+1)));
 130                 else
 131                         cmdline_targets.push_back(*i);
 132         }
 133
 134         if(cmdline_targets.empty())
 135                 cmdline_targets.push_back("default");
 136
 137         if(!work_dir.empty())
 138                 FS::chdir(work_dir);
 139
 140         cwd=FS::getcwd();
 141
 142         utsname un;
 143         string sysname="native";
 144         if(uname(&un)==0)
 145                 sysname=tolower(un.sysname);
 146
 147         native_arch=&archs.insert(ArchMap::value_type(sysname, Architecture(*this, sysname, true))).first->second;
 148         native_arch->set_tool("CC",  "gcc");
 149         native_arch->set_tool("CXX", "g++");
 150         native_arch->set_tool("LD",  "gcc");
 151         native_arch->set_tool("LXX", "g++");
 152         native_arch->set_tool("AR",  "ar");
 153
 154         load_build_file((FS::get_sys_data_dir(argv[0], "builder")/"builderrc").str());
 155         load_build_file((FS::get_home_dir()/".builderrc").str());
 156
 157         if(arch.empty())
 158                 current_arch=native_arch;
 159         else
 160                 current_arch=&get_architecture(arch);
 161
 162         if(prfx.empty())
 163         {
 164                 if(current_arch->is_native())
 165                         prefix=(FS::get_home_dir()/"local").str();
 166                 else
 167                         prefix=(FS::get_home_dir()/"local"/current_arch->get_name()).str();
 168         }
 169         else
 170                 prefix=FS::getcwd()/prfx;
 171
 172         warnings.push_back("all");
 173         warnings.push_back("extra");
 174         warnings.push_back("shadow");
 175         warnings.push_back("pointer-arith");
 176         warnings.push_back("error");
 177         for(StringList::iterator i=cmdline_warn.begin(); i!=cmdline_warn.end(); ++i)
 178         {
 179                 vector<string> warns=split(*i, ',');
 180                 warnings.insert(warnings.end(), warns.begin(), warns.end());
 181         }
 182
 183         pkg_path.push_back(cwd/".");
 184         pkg_path.push_back(cwd/"..");
 185 }
 186
 187 Builder::~Builder()
 188 {
 189         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 190                 delete i->second;
 191         for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 192                 delete i->second;
 193         delete analyzer;
 194 }
 195
 196 int Builder::main()
 197 {
 198         if(load_build_file(cwd/build_file))
 199         {
 200                 if(help)
 201                 {
 202                         usage(0, "builder", false);
 203                         return 0;
 204                 }
 205                 else
 206                 {
 207                         IO::print(IO::cerr, "No build info here.\n");
 208                         return 1;
 209                 }
 210         }
 211
 212         main_pkg->configure(cmdline_options, conf_all?2:1);
 213
 214         if(help)
 215         {
 216                 usage(0, "builder", false);
 217                 IO::print("\n");
 218                 package_help();
 219                 return 0;
 220         }
 221
 222         if(!conf_only && create_targets())
 223                 return 1;
 224
 225         PackageList all_reqs=main_pkg->collect_requires();
 226
 227         if(conf_only)
 228                 return 0;
 229
 230         if(verbose>=2)
 231                 IO::print("Building on %s, for %s\n", native_arch->get_name(), current_arch->get_name());
 232         if(verbose>=1)
 233                 IO::print("%d active packages, %d targets\n", all_reqs.size(), targets.size());
 234         if(verbose>=2)
 235         {
 236                 for(PackageList::const_iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
 237                 {
 238                         IO::print(" %s", (*i)->get_name());
 239                         if(dynamic_cast<SourcePackage *>(*i))
 240                                 IO::print("*");
 241                         unsigned count=0;
 242                         unsigned ood_count=0;
 243                         for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
 244                                 if(j->second->get_package()==*i)
 245                                 {
 246                                         ++count;
 247                                         if(j->second->get_rebuild())
 248                                                 ++ood_count;
 249                                 }
 250                         if(count)
 251                         {
 252                                 IO::print(" (%d targets", count);
 253                                 if(ood_count)
 254                                         IO::print(", %d out-of-date", ood_count);
 255                                 IO::print(")");
 256                         }
 257                         IO::print("\n");
 258                 }
 259         }
 260
 261         if(analyzer)
 262                 analyzer->analyze();
 263
 264         if(!problems.empty())
 265         {
 266                 IO::print(IO::cerr, "The following problems were detected:\n");
 267                 for(ProblemList::iterator i=problems.begin(); i!=problems.end(); ++i)
 268                         IO::print(IO::cerr, "  %s: %s\n", i->package, i->descr);
 269                 IO::print(IO::cerr, "Please fix them and try again.\n");
 270                 return 1;
 271         }
 272
 273         //if(create_makefile
 274
 275         if(clean)
 276                 exit_code=do_clean();
 277         else if(build)
 278                 exit_code=do_build();
 279
 280         return exit_code;
 281 }
 282
 283 Package *Builder::get_package(const string &name)
 284 {
 285         PackageMap::iterator i=packages.find(format("%s/%s", name, current_arch->get_name()));
 286         if(i==packages.end())
 287                 i=packages.find(name);
 288         if(i!=packages.end())
 289                 return i->second;
 290
 291         FS::Path path=get_package_location(name);
 292         if(!path.empty() && !load_build_file(path/"Build"))
 293         {
 294                 i=packages.find(name);
 295                 if(i!=packages.end())
 296                         return i->second;
 297         }
 298
 299         // Package source not found - create a binary package
 300         Package *pkg=BinaryPackage::from_pkgconfig(*this, name);
 301
 302         packages.insert(PackageMap::value_type(name, pkg));
 303
 304         if(!pkg)
 305                 problem(name, "not found");
 306
 307         return pkg;
 308 }
 309
 310 Target *Builder::get_target(const string &n) const
 311 {
 312         // XXX Used for getting targets by path.  get_target(const FS::Path &)?
 313         TargetMap::const_iterator i=targets.find(n);
 314         if(i!=targets.end())
 315                 return i->second;
 316         return 0;
 317 }
 318
 319 Target *Builder::get_header(const string &include, const FS::Path &from, const list<string> &path)
 320 {
 321         string hash(8, 0);
 322         if(include[0]=='\"')
 323                 update_hash(hash, from.str());
 324         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 325                 update_hash(hash, *i);
 326
 327         string id=hash+include;
 328         TargetMap::iterator i=includes.find(id);
 329         if(i!=includes.end())
 330                 return i->second;
 331
 332         static string cxx_ver;
 333         if(cxx_ver.empty())
 334         {
 335                 StringList argv;
 336                 argv.push_back(current_arch->get_tool("CXX"));
 337                 argv.push_back("--version");
 338                 cxx_ver=Regex("[0-9]\\.[0-9.]+").match(run_command(argv))[0].str;
 339                 while(!cxx_ver.empty() && !FS::is_dir(FS::Path("/usr/include/c++")/cxx_ver))
 340                 {
 341                         unsigned dot=cxx_ver.rfind('.');
 342                         if(dot==string::npos)
 343                                 break;
 344                         cxx_ver.erase(dot);
 345                 }
 346                 if(verbose>=5)
 347                         IO::print("C++ version is %s\n", cxx_ver);
 348         }
 349
 350         string fn=include.substr(1);
 351         if(verbose>=5)
 352                 IO::print("Looking for include %s from %s with path %s\n", fn, from, join(path.begin(), path.end()));
 353
 354         StringList syspath;
 355         if(current_arch->is_native())
 356                 syspath.push_back("/usr/include");
 357         else
 358                 syspath.push_back("/usr/"+current_arch->get_prefix()+"/include");
 359         syspath.push_back((FS::Path("/usr/include/c++/")/cxx_ver).str());
 360
 361         Target *tgt=0;
 362         if(include[0]=='\"')
 363                 tgt=get_header(FS::Path(from)/fn);
 364         for(list<string>::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
 365                 tgt=get_header(cwd/ *j/fn);
 366         for(list<string>::const_iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
 367                 tgt=get_header(FS::Path(*j)/fn);
 368
 369         includes.insert(TargetMap::value_type(id, tgt));
 370
 371         return tgt;
 372 }
 373
 374 Target *Builder::get_library(const string &lib, const list<string> &path, LibMode mode)
 375 {
 376         string hash(8, 0);
 377         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 378                 update_hash(hash, *i);
 379
 380         string id=hash+string(1, mode)+lib;
 381         TargetMap::iterator i=libraries.find(id);
 382         if(i!=libraries.end())
 383                 return i->second;
 384
 385         StringList syspath;
 386         if(current_arch->is_native())
 387         {
 388                 syspath.push_back("/lib");
 389                 syspath.push_back("/usr/lib");
 390         }
 391         else
 392                 syspath.push_back("/usr/"+current_arch->get_prefix()+"/lib");
 393
 394         if(verbose>=5)
 395                 IO::print("Looking for library %s with path %s\n", lib, join(path.begin(), path.end()));
 396
 397         Target *tgt=0;
 398         for(StringList::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
 399                 tgt=get_library(lib, cwd/ *j, mode);
 400         for(StringList::iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
 401                 tgt=get_library(lib, *j, mode);
 402
 403         libraries.insert(TargetMap::value_type(id, tgt));
 404
 405         return tgt;
 406 }
 407
 408 const Architecture &Builder::get_architecture(const string &arch) const
 409 {
 410         ArchMap::const_iterator i=archs.find(arch);
 411         if(i==archs.end())
 412                 throw KeyError("Unknown architecture", arch);
 413
 414         return i->second;
 415 }
 416
 417 void Builder::apply_profile_template(Config &config, const string &pt) const
 418 {
 419         vector<string> parts=split(pt, '-');
 420
 421         for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
 422         {
 423                 ProfileTemplateMap::const_iterator j=profile_tmpl.find(*i);
 424                 if(j==profile_tmpl.end())
 425                         continue;
 426
 427                 config.update(j->second);
 428         }
 429 }
 430
 431 void Builder::problem(const string &p, const string &d)
 432 {
 433         problems.push_back(Problem(p, d));
 434 }
 435
 436 void Builder::add_target(Target *t)
 437 {
 438         targets.insert(TargetMap::value_type(t->get_name(), t));
 439         new_tgts.push_back(t);
 440 }
 441
 442 void Builder::usage(const char *reason, const char *argv0, bool brief)
 443 {
 444         if(reason)
 445                 IO::print(IO::cerr, "%s\n", reason);
 446
 447         if(brief)
 448                 IO::print(IO::cerr, "Usage: %s\n", usagemsg);
 449         else
 450         {
 451                 IO::print(IO::cerr, "Usage: %s [options] [<target> ...]\n\n", argv0);
 452                 IO::print(IO::cerr, "Options:\n");
 453                 IO::print(IO::cerr, helpmsg);
 454         }
 455 }
 456
 457 FS::Path Builder::get_package_location(const string &name)
 458 {
 459         if(verbose>=3)
 460                 IO::print("Looking for package %s\n", name);
 461
 462         // Try to get source directory with pkgconfig
 463         list<string> argv;
 464         argv.push_back("pkg-config");
 465         argv.push_back("--variable=source");
 466         argv.push_back(name);
 467         if(verbose>=4)
 468                 IO::print("Running %s\n", join(argv.begin(), argv.end()));
 469         string srcdir=strip(run_command(argv));
 470         if(!srcdir.empty())
 471                 return srcdir;
 472
 473         if(pkg_dirs.empty())
 474         {
 475                 for(list<FS::Path>::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
 476                 {
 477                         list<string> files=list_files(*i);
 478                         for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
 479                         {
 480                                 FS::Path full=*i / *j;
 481                                 if(FS::exists(full/"Build"))
 482                                         pkg_dirs.push_back(full);
 483                         }
 484                 }
 485                 if(verbose>=3)
 486                         IO::print("%d packages found in path\n", pkg_dirs.size());
 487         }
 488
 489         bool msp=!name.compare(0, 3, "msp");
 490         for(list<FS::Path>::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
 491         {
 492                 string base=basename(*i);
 493                 unsigned dash=base.rfind('-');
 494
 495                 if(!base.compare(0, dash, name))
 496                         return *i;
 497                 else if(msp && !base.compare(0, dash-3, name, 3, string::npos))
 498                         return *i;
 499         }
 500
 501         return FS::Path();
 502 }
 503
 504 int Builder::load_build_file(const FS::Path &fn)
 505 {
 506         try
 507         {
 508                 IO::BufferedFile in(fn.str());
 509
 510                 if(verbose>=3)
 511                         IO::print("Reading %s\n", fn);
 512
 513                 DataFile::Parser parser(in, fn.str());
 514                 Loader loader(*this, fn.subpath(0, fn.size()-1));
 515                 loader.load(parser);
 516         }
 517         catch(const IO::FileNotFound &)
 518         {
 519                 return -1;
 520         }
 521
 522         return 0;
 523 }
 524
 525 int Builder::create_targets()
 526 {
 527         Target *world=new VirtualTarget(*this, "world");
 528
 529         Target *def_tgt=new VirtualTarget(*this, "default");
 530         world->add_depend(def_tgt);
 531
 532         Target *install=new VirtualTarget(*this, "install");
 533         world->add_depend(install);
 534
 535         Target *tarballs=new VirtualTarget(*this, "tarballs");
 536         world->add_depend(tarballs);
 537
 538         PackageList all_reqs=main_pkg->collect_requires();
 539         for(PackageList::iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
 540         {
 541                 SourcePackage *spkg=dynamic_cast<SourcePackage *>(*i);
 542                 if(!spkg)
 543                         continue;
 544
 545                 const ComponentList &components=spkg->get_components();
 546                 for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
 547                         j->create_targets();
 548
 549                 if(spkg->get_install_flags()&(SourcePackage::LIB|SourcePackage::INCLUDE))
 550                 {
 551                         PkgConfig *pc=new PkgConfig(*this, *spkg);
 552                         install->add_depend(new Install(*this, *spkg, *pc));
 553                 }
 554
 555                 tarballs->add_depend(new TarBall(*this, *spkg));
 556         }
 557
 558         // Find dependencies until no new targets are created
 559         while(!new_tgts.empty())
 560         {
 561                 Target *tgt=new_tgts.front();
 562                 new_tgts.erase(new_tgts.begin());
 563                 tgt->find_depends();
 564                 if(!tgt->get_depends_ready())
 565                         new_tgts.push_back(tgt);
 566         }
 567
 568         // Apply what-ifs
 569         for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
 570         {
 571                 Target *tgt=get_target((cwd/ *i).str());
 572                 if(!tgt)
 573                 {
 574                         IO::print(IO::cerr, "Unknown what-if target %s\n", *i);
 575                         return -1;
 576                 }
 577                 tgt->touch();
 578         }
 579
 580         // Make the cmdline target depend on all targets mentioned on the command line
 581         Target *cmdline=new VirtualTarget(*this, "cmdline");
 582         bool build_world=false;
 583         for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
 584         {
 585                 Target *tgt=get_target(*i);
 586                 if(!tgt)
 587                         tgt=get_target((cwd/ *i).str());
 588                 if(!tgt)
 589                 {
 590                         IO::print("I don't know anything about %s\n", *i);
 591                         return -1;
 592                 }
 593                 if(tgt==world)
 594                         build_world=true;
 595                 cmdline->add_depend(tgt);
 596         }
 597
 598         /* If world is to be built, prepare cmdline.  If not, add cmdline to world
 599         and prepare world.  I don't really like this, but it keeps the graph
 600         acyclic.
 601
 602         XXX Could we skip preparing targets we are not interested in? */
 603         if(build_world)
 604                 cmdline->prepare();
 605         else
 606         {
 607                 world->add_depend(cmdline);
 608                 world->prepare();
 609         }
 610
 611         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 612                 if(SourcePackage *spkg=dynamic_cast<SourcePackage *>(i->second))
 613                         spkg->get_deps_cache().save();
 614
 615         return 0;
 616 }
 617
 618 Target *Builder::get_header(const Msp::FS::Path &fn)
 619 {
 620         Target *tgt=get_target(fn.str());
 621         if(tgt) return tgt;
 622
 623         if(FS::is_reg(fn))
 624         {
 625                 tgt=new SystemHeader(*this, fn.str());
 626                 return tgt;
 627         }
 628         return 0;
 629 }
 630
 631 Target *Builder::get_library(const string &lib, const FS::Path &path, LibMode mode)
 632 {
 633         // Populate a list of candidate filenames
 634         StringList candidates;
 635
 636         if(mode!=ALL_STATIC)
 637         {
 638                 if(current_arch->get_name()=="win32")
 639                 {
 640                         candidates.push_back("lib"+lib+".dll");
 641                         candidates.push_back(lib+".dll");
 642                 }
 643                 else
 644                         candidates.push_back("lib"+lib+".so");
 645         }
 646
 647         /* Static libraries are always considered, since sometimes shared versions
 648         may not be available */
 649         candidates.push_back("lib"+lib+".a");
 650         if(current_arch->get_name()=="win32")
 651                 candidates.push_back("lib"+lib+".dll.a");
 652
 653         for(StringList::iterator i=candidates.begin(); i!=candidates.end(); ++i)
 654         {
 655                 string full=(path/ *i).str();
 656                 Target *tgt=get_target(full);
 657
 658                 if(tgt)
 659                 {
 660                         Target *real_tgt=tgt;
 661                         if(Install *inst=dynamic_cast<Install *>(tgt))
 662                                 real_tgt=&inst->get_source();
 663
 664                         /* Ignore dynamic libraries from local packages unless library mode is
 665                         DYNAMIC */
 666                         if(dynamic_cast<SharedLibrary *>(real_tgt) && mode!=DYNAMIC)
 667                                 continue;
 668                         else if(tgt)
 669                                 return tgt;
 670                 }
 671                 else if(FS::is_reg(full))
 672                 {
 673                         tgt=new SystemLibrary(*this, full);
 674                         return tgt;
 675                 }
 676         }
 677
 678         return 0;
 679 }
 680
 681 int Builder::do_build()
 682 {
 683         Target *cmdline=get_target("cmdline");
 684
 685         unsigned total=cmdline->count_rebuild();
 686         if(!total)
 687         {
 688                 IO::print("Already up to date\n");
 689                 return 0;
 690         }
 691         if(verbose>=1)
 692                 IO::print("Will build %d target%s\n", total, (total!=1 ? "s" : ""));
 693
 694         vector<Action *> actions;
 695
 696         unsigned count=0;
 697
 698         bool fail=false;
 699         bool finish=false;
 700
 701         while(!finish)
 702         {
 703                 if(actions.size()<jobs && !fail)
 704                 {
 705                         Target *tgt=cmdline->get_buildable_target();
 706                         if(tgt)
 707                         {
 708                                 Action *action=tgt->build();
 709                                 if(action)
 710                                         actions.push_back(action);
 711
 712                                 if(show_progress)
 713                                         IO::print("%d of %d target%s built\033[1G", count, total, (total!=1 ? "s" : ""));
 714                         }
 715                         else if(actions.empty())
 716                                 finish=true;
 717                 }
 718                 else
 719                         Time::sleep(10*Time::msec);
 720
 721                 for(unsigned i=0; i<actions.size();)
 722                 {
 723                         int status=actions[i]->check();
 724                         if(status>=0)
 725                         {
 726                                 ++count;
 727
 728                                 delete actions[i];
 729                                 actions.erase(actions.begin()+i);
 730                                 if(status>0)
 731                                         fail=true;
 732                                 if(actions.empty() && fail)
 733                                         finish=true;
 734                         }
 735                         else
 736                                 ++i;
 737                 }
 738         }
 739
 740         if(show_progress)
 741                 IO::print("\033[K");
 742         if(fail)
 743                 IO::print("Build failed\n");
 744         else if(show_progress)
 745                 IO::print("Build complete\n");
 746
 747         return fail;
 748 }
 749
 750 int Builder::do_clean()
 751 {
 752         // Cleaning doesn't care about ordering, so a simpler method can be used
 753
 754         set<Target *> clean_tgts;
 755         TargetList queue;
 756         queue.push_back(get_target("cmdline"));
 757
 758         while(!queue.empty())
 759         {
 760                 Target *tgt=queue.front();
 761                 queue.erase(queue.begin());
 762
 763                 if(tgt->get_buildable() && (tgt->get_package()==main_pkg || clean>=2))
 764                         clean_tgts.insert(tgt);
 765
 766                 const TargetList &deps=tgt->get_depends();
 767                 for(TargetList::const_iterator i=deps.begin(); i!=deps.end(); ++i)
 768                         if(!clean_tgts.count(*i))
 769                                 queue.push_back(*i);
 770         }
 771
 772         for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
 773                 if(FileTarget *ft=dynamic_cast<FileTarget *>(*i))
 774                 {
 775                         Action *action=new Unlink(*this, *ft);
 776                         while(action->check()<0) ;
 777                         delete action;
 778                 }
 779
 780         return 0;
 781 }
 782
 783 void Builder::package_help()
 784 {
 785         const Config &config=main_pkg->get_config();
 786         const Config::OptionMap &options=config.get_options();
 787
 788         IO::print("Required packages:\n  ");
 789         const PackageList &requires=main_pkg->get_requires();
 790         for(PackageList::const_iterator i=requires.begin(); i!=requires.end(); ++i)
 791         {
 792                 if(i!=requires.begin())
 793                         IO::print(", ");
 794                 IO::print((*i)->get_name());
 795         }
 796         IO::print("\n\nPackage configuration:\n");
 797         for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
 798         {
 799                 const Config::Option &opt=i->second;
 800                 IO::print("  %s: %s (%s)", opt.name, opt.descr, opt.value);
 801                 if(opt.value!=opt.defv)
 802                         IO::print(" [%s]", opt.defv);
 803                 IO::print("\n");
 804         }
 805 }
 806
 807 Application::RegApp<Builder> Builder::reg;
 808 string Builder::usagemsg;
 809 string Builder::helpmsg;
 810
 811
 812 Builder::Loader::Loader(Builder &b, const FS::Path &s):
 813         bld(b),
 814         src(s)
 815 {
 816         add("architecture", &Loader::architecture);
 817         add("binary_package", &Loader::binpkg);
 818         add("profile", &Loader::profile);
 819         add("package", &Loader::package);
 820 }
 821
 822 void Builder::Loader::architecture(const string &n)
 823 {
 824         Architecture arch(bld, n);
 825         load_sub(arch);
 826         bld.archs.insert(ArchMap::value_type(n, arch));
 827 }
 828
 829 void Builder::Loader::binpkg(const string &n)
 830 {
 831         BinaryPackage *pkg=new BinaryPackage(bld, n);
 832         load_sub(*pkg);
 833         bld.packages.insert(PackageMap::value_type(n, pkg));
 834 }
 835
 836 void Builder::Loader::profile(const string &n)
 837 {
 838         StringMap prf;
 839         ProfileLoader ldr(prf);
 840         load_sub_with(ldr);
 841         bld.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
 842 }
 843
 844 void Builder::Loader::package(const string &n)
 845 {
 846         SourcePackage *pkg=new SourcePackage(bld, n, src);
 847         if(!bld.main_pkg)
 848                 bld.main_pkg=pkg;
 849
 850         load_sub(*pkg);
 851         bld.packages.insert(PackageMap::value_type(n, pkg));
 852 }
 853
 854
 855 Builder::ProfileLoader::ProfileLoader(StringMap &p):
 856         profile(p)
 857 {
 858         add("option", &ProfileLoader::option);
 859 }
 860
 861 void Builder::ProfileLoader::option(const string &o, const string &v)
 862 {
 863         profile.insert(StringMap::value_type(o, v));
 864 }