source/builder.cpp

   1 #include <set>
   2 #include <cstdlib>
   3 #include <msp/core/getopt.h>
   4 #include <msp/datafile/parser.h>
   5 #include <msp/fs/dir.h>
   6 #include <msp/fs/stat.h>
   7 #include <msp/fs/utils.h>
   8 #include <msp/io/buffered.h>
   9 #include <msp/io/file.h>
  10 #include <msp/io/print.h>
  11 #include <msp/strings/format.h>
  12 #include <msp/strings/regex.h>
  13 #include <msp/strings/utils.h>
  14 #include <msp/time/units.h>
  15 #include <msp/time/utils.h>
  16 #include "analyzer.h"
  17 #include "binarypackage.h"
  18 #include "builder.h"
  19 #include "copy.h"
  20 #include "externaltask.h"
  21 #include "gnuarchiver.h"
  22 #include "gnuccompiler.h"
  23 #include "gnucxxcompiler.h"
  24 #include "gnulinker.h"
  25 #include "installedfile.h"
  26 #include "package.h"
  27 #include "pkgconfiggenerator.h"
  28 #include "sharedlibrary.h"
  29 #include "sourcepackage.h"
  30 #include "tar.h"
  31 #include "task.h"
  32 #include "virtualtarget.h"
  33
  34 using namespace std;
  35 using namespace Msp;
  36
  37 Builder::Builder(int argc, char **argv):
  38         main_pkg(0),
  39         native_arch(*this, string()),
  40         vfs(*this),
  41         analyzer(0),
  42         build(false),
  43         clean(0),
  44         dry_run(false),
  45         help(false),
  46         verbose(1),
  47         show_progress(false),
  48         build_file("Build"),
  49         jobs(1),
  50         conf_all(false),
  51         conf_only(false),
  52         build_all(false),
  53         create_makefile(false)
  54 {
  55         string analyze_mode;
  56         string work_dir;
  57         bool full_paths = false;
  58         unsigned max_depth = 5;
  59         StringList cmdline_warn;
  60         string prfx;
  61         string arch;
  62
  63         GetOpt getopt;
  64         getopt.add_option('a', "analyze",    analyze_mode,  GetOpt::REQUIRED_ARG).set_help("Perform analysis.  MODE can be deps, alldeps or rebuild.", "MODE");
  65         getopt.add_option('b', "build",      build,         GetOpt::NO_ARG).set_help("Perform build even if doing analysis.");
  66         getopt.add_option('c', "clean",      clean,         GetOpt::NO_ARG).set_help("Clean buildable targets.");
  67         getopt.add_option('f', "file",       build_file,    GetOpt::REQUIRED_ARG).set_help("Read info from FILE instead of Build.", "FILE");
  68         getopt.add_option('h', "help",       help,          GetOpt::NO_ARG).set_help("Print this message.");
  69         getopt.add_option('j', "jobs",       jobs,          GetOpt::REQUIRED_ARG).set_help("Run NUM commands at once, whenever possible.", "NUM");
  70         getopt.add_option('n', "dry-run",    dry_run,       GetOpt::NO_ARG).set_help("Don't actually do anything, only show what would be done.");
  71         getopt.add_option('v', "verbose",    verbose,       GetOpt::NO_ARG).set_help("Print more information about what's going on.");
  72         getopt.add_option('x', "no-externals",  no_externals, GetOpt::NO_ARG).set_help("Do not load external source packages.");
  73         getopt.add_option('A', "conf-all",   conf_all,      GetOpt::NO_ARG).set_help("Apply configuration to all packages.");
  74         getopt.add_option('B', "build-all",  build_all,     GetOpt::NO_ARG).set_help("Build all targets unconditionally.");
  75         getopt.add_option('C', "chdir",      work_dir,      GetOpt::REQUIRED_ARG).set_help("Change to DIR before doing anything else.", "DIR");
  76         getopt.add_option('P', "progress",   show_progress, GetOpt::NO_ARG).set_help("Display progress while building.");
  77         getopt.add_option('W', "what-if",    what_if,       GetOpt::REQUIRED_ARG).set_help("Pretend that FILE has changed.", "FILE");
  78         getopt.add_option(     "arch",       arch,          GetOpt::REQUIRED_ARG).set_help("Architecture to build for.", "ARCH");
  79         getopt.add_option(     "conf-only",  conf_only,     GetOpt::NO_ARG).set_help("Stop after configuring packages.");
  80         getopt.add_option(     "full-paths", full_paths,    GetOpt::NO_ARG).set_help("Output full paths in analysis.");
  81         getopt.add_option(     "max-depth",  max_depth,     GetOpt::REQUIRED_ARG).set_help("Maximum depth to show in analysis.", "NUM");
  82         getopt.add_option(     "prefix",     prfx,          GetOpt::REQUIRED_ARG).set_help("Directory to install things to.", "DIR");
  83         getopt.add_option(     "warnings",   cmdline_warn,  GetOpt::REQUIRED_ARG).set_help("Compiler warnings to use.", "LIST");
  84         usagemsg = getopt.generate_usage(argv[0])+" [<target> ...]";
  85         helpmsg = getopt.generate_help();
  86         getopt(argc, argv);
  87
  88         if(!analyze_mode.empty())
  89         {
  90                 analyzer = new Analyzer(*this);
  91
  92                 if(analyze_mode=="deps")
  93                         analyzer->set_mode(Analyzer::DEPS);
  94                 else if(analyze_mode=="alldeps")
  95                         analyzer->set_mode(Analyzer::ALLDEPS);
  96                 else if(analyze_mode=="rebuild")
  97                         analyzer->set_mode(Analyzer::REBUILD);
  98                 else if(analyze_mode=="rdeps")
  99                         analyzer->set_mode(Analyzer::RDEPS);
 100                 else
 101                         throw usage_error("Invalid analyze mode");
 102
 103                 analyzer->set_max_depth(max_depth);
 104                 analyzer->set_full_paths(full_paths);
 105         }
 106         else if(!clean && !create_makefile)
 107                 build = true;
 108
 109         const vector<string> &args = getopt.get_args();
 110         for(vector<string>::const_iterator i=args.begin(); i!=args.end(); ++i)
 111         {
 112                 string::size_type equal = i->find('=');
 113                 if(equal!=string::npos)
 114                         cmdline_options.insert(StringMap::value_type(i->substr(0, equal), i->substr(equal+1)));
 115                 else
 116                         cmdline_targets.push_back(*i);
 117         }
 118
 119         if(cmdline_targets.empty())
 120                 cmdline_targets.push_back("default");
 121
 122         if(!work_dir.empty())
 123                 FS::chdir(work_dir);
 124
 125         cwd = FS::getcwd();
 126
 127         load_build_file((FS::get_sys_data_dir(argv[0], "builder")/"builderrc").str());
 128         load_build_file((FS::get_user_data_dir("builder")/"rc").str());
 129
 130         if(arch.empty())
 131                 current_arch = &native_arch;
 132         else
 133                 current_arch = new Architecture(*this, arch);
 134
 135         if(!current_arch->is_native())
 136         {
 137                 for(StringMap::const_iterator i=cross_prefixes.begin(); i!=cross_prefixes.end(); ++i)
 138                         if(current_arch->match_name(i->first))
 139                         {
 140                                 current_arch->set_cross_prefix(i->second);
 141                                 break;
 142                         }
 143         }
 144
 145         toolchain.add_tool(new GnuCCompiler(*this));
 146         toolchain.add_tool(new GnuCxxCompiler(*this));
 147         toolchain.add_tool(new GnuLinker(*this));
 148         toolchain.add_tool(new GnuArchiver(*this));
 149         toolchain.add_tool(new Copy(*this));
 150         toolchain.add_tool(new Tar(*this));
 151         toolchain.add_tool(new PkgConfigGenerator(*this));
 152
 153         if(prfx.empty())
 154         {
 155                 if(current_arch->is_native())
 156                         prefix = (FS::get_home_dir()/"local").str();
 157                 else
 158                         prefix = (FS::get_home_dir()/"local"/current_arch->get_name()).str();
 159         }
 160         else
 161                 prefix = FS::getcwd()/prfx;
 162
 163         warnings.push_back("all");
 164         warnings.push_back("extra");
 165         warnings.push_back("shadow");
 166         warnings.push_back("pointer-arith");
 167         warnings.push_back("error");
 168         for(StringList::iterator i=cmdline_warn.begin(); i!=cmdline_warn.end(); ++i)
 169         {
 170                 vector<string> warns = split(*i, ',');
 171                 warnings.insert(warnings.end(), warns.begin(), warns.end());
 172         }
 173
 174         pkg_path.push_back(cwd/".");
 175         pkg_path.push_back(cwd/"..");
 176 }
 177
 178 Builder::~Builder()
 179 {
 180         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 181                 delete i->second;
 182         for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 183                 delete i->second;
 184         delete analyzer;
 185 }
 186
 187 int Builder::main()
 188 {
 189         if(prefix.str()!="/usr")
 190         {
 191                 FS::Path pcdir = prefix/"lib"/"pkgconfig";
 192                 if(const char *pcp = getenv("PKG_CONFIG_PATH"))
 193                 {
 194                         vector<string> path = split(pcp, ':');
 195                         bool found = false;
 196                         for(vector<string>::const_iterator i=path.begin(); (!found && i!=path.end()); ++i)
 197                                 found = (*i==pcdir.str());
 198                         if(!found)
 199                         {
 200                                 path.push_back(pcdir.str());
 201                                 setenv("PKG_CONFIG_PATH", join(path.begin(), path.end(), ":").c_str(), true);
 202                         }
 203                 }
 204                 else
 205                         setenv("PKG_CONFIG_PATH", pcdir.str().c_str(), true);
 206         }
 207
 208         if(load_build_file(cwd/build_file))
 209         {
 210                 if(help)
 211                 {
 212                         usage(0, "builder", false);
 213                         return 0;
 214                 }
 215                 else
 216                 {
 217                         IO::print(IO::cerr, "No build info here.\n");
 218                         return 1;
 219                 }
 220         }
 221
 222         main_pkg->configure(cmdline_options, conf_all?2:1);
 223
 224         if(help)
 225         {
 226                 usage(0, "builder", false);
 227                 IO::print("\n");
 228                 package_help();
 229                 return 0;
 230         }
 231
 232         if(conf_only)
 233                 return 0;
 234
 235         if(create_targets())
 236                 return 1;
 237
 238         if(verbose>=2)
 239         {
 240                 IO::print("Building on %s, for %s%s\n", native_arch.get_name(),
 241                         current_arch->get_name(), (current_arch->is_native() ? " (native)" : ""));
 242                 IO::print("Prefix is %s\n", prefix);
 243         }
 244
 245         if(verbose>=1)
 246         {
 247                 unsigned n_packages = 0;
 248                 for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 249                         if(i->second && i->second->is_configured())
 250                                 ++n_packages;
 251                 IO::print("%d active packages, %d targets\n", n_packages, targets.size());
 252         }
 253
 254         if(verbose>=2)
 255         {
 256                 for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 257                 {
 258                         if(!i->second->is_configured())
 259                                 continue;
 260
 261                         IO::print(" %s", i->second->get_name());
 262                         if(dynamic_cast<SourcePackage *>(i->second))
 263                                 IO::print("*");
 264                         unsigned count = 0;
 265                         unsigned to_be_built = 0;
 266                         for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
 267                                 if(j->second->get_package()==i->second)
 268                                 {
 269                                         ++count;
 270                                         if(j->second->needs_rebuild())
 271                                                 ++to_be_built;
 272                                 }
 273                         if(count)
 274                         {
 275                                 IO::print(" (%d targets", count);
 276                                 if(to_be_built)
 277                                         IO::print(", %d to be built", to_be_built);
 278                                 IO::print(")");
 279                         }
 280                         IO::print("\n");
 281                 }
 282         }
 283
 284         if(analyzer)
 285                 analyzer->analyze();
 286
 287         if(!problems.empty())
 288         {
 289                 IO::print(IO::cerr, "The following problems were detected:\n");
 290                 for(ProblemList::iterator i=problems.begin(); i!=problems.end(); ++i)
 291                         IO::print(IO::cerr, "  %s: %s\n", i->package, i->descr);
 292                 if(!analyzer)
 293                         IO::print(IO::cerr, "Please fix them and try again.\n");
 294                 return 1;
 295         }
 296
 297         if(clean)
 298                 exit_code = do_clean();
 299         else if(build)
 300                 exit_code = do_build();
 301
 302         return exit_code;
 303 }
 304
 305 string Builder::run_pkgconfig(const string &pkg, const string &what)
 306 {
 307         ExternalTask::Arguments argv;
 308         argv.push_back("pkg-config");
 309         if(what=="cflags" || what=="libs")
 310                 argv.push_back("--"+what);
 311         else if(what=="flags")
 312         {
 313                 argv.push_back("--cflags");
 314                 argv.push_back("--libs");
 315         }
 316         else
 317                 argv.push_back("--variable="+what);
 318         argv.push_back(pkg);
 319
 320         if(verbose>=4)
 321                 IO::print("Running %s\n", join(argv.begin(), argv.end()));
 322
 323         ExternalTask task(argv);
 324         task.set_stdout(ExternalTask::CAPTURE);
 325         task.set_stderr(ExternalTask::IGNORE);
 326         task.start();
 327         Task::Status status;
 328         while((status=task.check())==Task::RUNNING)
 329                 Time::sleep(10*Time::msec);
 330         if(status==Task::ERROR)
 331                 throw runtime_error(format("pkg-config for package %s failed", pkg));
 332
 333         return task.get_output();
 334 }
 335
 336 Package *Builder::get_package(const string &name)
 337 {
 338         PackageMap::iterator i = packages.find(format("%s/%s", name, current_arch->get_system()));
 339         if(i==packages.end())
 340                 i = packages.find(name);
 341         if(i!=packages.end())
 342                 return i->second;
 343
 344         if(!no_externals)
 345         {
 346                 FS::Path path = get_package_location(name);
 347                 if(!path.empty() && !load_build_file(path/"Build"))
 348                 {
 349                         i = packages.find(name);
 350                         if(i!=packages.end())
 351                                 return i->second;
 352                 }
 353         }
 354
 355         Package *pkg = 0;
 356         try
 357         {
 358                 // Package source not found - create a binary package
 359                 pkg = BinaryPackage::from_pkgconfig(*this, name);
 360         }
 361         catch(...)
 362         {
 363                 problem(name, "not found");
 364         }
 365
 366         packages.insert(PackageMap::value_type(name, pkg));
 367
 368         return pkg;
 369 }
 370
 371 Target *Builder::get_target(const string &n) const
 372 {
 373         TargetMap::const_iterator i = targets.find(n);
 374         if(i!=targets.end())
 375                 return i->second;
 376         return 0;
 377 }
 378
 379 void Builder::apply_profile_template(Config &config, const string &pt) const
 380 {
 381         vector<string> parts = split(pt, '-');
 382
 383         for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
 384         {
 385                 ProfileTemplateMap::const_iterator j = profile_tmpl.find(*i);
 386                 if(j==profile_tmpl.end())
 387                         continue;
 388
 389                 config.update(j->second);
 390         }
 391 }
 392
 393 void Builder::problem(const string &p, const string &d)
 394 {
 395         problems.push_back(Problem(p, d));
 396 }
 397
 398 void Builder::add_target(Target *t)
 399 {
 400         targets.insert(TargetMap::value_type(t->get_name(), t));
 401         new_tgts.push_back(t);
 402 }
 403
 404 void Builder::usage(const char *reason, const char *argv0, bool brief)
 405 {
 406         if(reason)
 407                 IO::print(IO::cerr, "%s\n", reason);
 408
 409         if(brief)
 410                 IO::print(IO::cerr, "Usage: %s\n", usagemsg);
 411         else
 412         {
 413                 IO::print(IO::cerr, "Builder 1.0\n\n");
 414                 IO::print(IO::cerr, "Usage: %s [options] [<target> ...]\n\n", argv0);
 415                 IO::print(IO::cerr, "Options:\n");
 416                 IO::print(IO::cerr, helpmsg);
 417         }
 418 }
 419
 420 FS::Path Builder::get_package_location(const string &name)
 421 {
 422         if(verbose>=3)
 423                 IO::print("Looking for package %s\n", name);
 424
 425         try
 426         {
 427                 // Try to get source directory with pkgconfig
 428                 string srcdir = strip(run_pkgconfig(name, "source"));
 429                 if(!srcdir.empty())
 430                         return srcdir;
 431         }
 432         catch(...)
 433         { }
 434
 435         if(pkg_dirs.empty())
 436         {
 437                 for(list<FS::Path>::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
 438                 {
 439                         list<string> files = list_files(*i);
 440                         for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
 441                         {
 442                                 FS::Path full = *i / *j;
 443                                 if(FS::exists(full/"Build"))
 444                                         pkg_dirs.push_back(full);
 445                         }
 446                 }
 447                 if(verbose>=3)
 448                         IO::print("%d packages found in path\n", pkg_dirs.size());
 449         }
 450
 451         bool msp = !name.compare(0, 3, "msp");
 452         for(list<FS::Path>::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
 453         {
 454                 string base = basename(*i);
 455                 unsigned dash = base.rfind('-');
 456
 457                 if(!base.compare(0, dash, name))
 458                         return *i;
 459                 else if(msp && !base.compare(0, dash-3, name, 3, string::npos))
 460                         return *i;
 461         }
 462
 463         return FS::Path();
 464 }
 465
 466 int Builder::load_build_file(const FS::Path &fn)
 467 {
 468         if(!FS::exists(fn))
 469                 return -1;
 470
 471         IO::BufferedFile in(fn.str());
 472
 473         if(verbose>=3)
 474                 IO::print("Reading %s\n", fn);
 475
 476         DataFile::Parser parser(in, fn.str());
 477         Loader loader(*this, fn.subpath(0, fn.size()-1));
 478         loader.load(parser);
 479
 480         return 0;
 481 }
 482
 483 int Builder::create_targets()
 484 {
 485         Target *world = new VirtualTarget(*this, "world");
 486
 487         Target *def_tgt = new VirtualTarget(*this, "default");
 488         world->add_depend(def_tgt);
 489
 490         Target *install = new VirtualTarget(*this, "install");
 491         world->add_depend(install);
 492
 493         Target *tarballs = new VirtualTarget(*this, "tarballs");
 494         world->add_depend(tarballs);
 495
 496         for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 497                 if(i->second && i->second->is_configured())
 498                         i->second->create_targets();
 499
 500         // Make the cmdline target depend on all targets mentioned on the command line
 501         Target *cmdline = new VirtualTarget(*this, "cmdline");
 502         for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
 503         {
 504                 Target *tgt = get_target(*i);
 505                 if(!tgt)
 506                         tgt = vfs.get_target(*i);
 507                 if(!tgt)
 508                         tgt = vfs.get_target(cwd/ *i);
 509                 if(!tgt)
 510                 {
 511                         IO::print("I don't know anything about %s\n", *i);
 512                         return -1;
 513                 }
 514
 515                 cmdline->add_depend(tgt);
 516         }
 517
 518         cmdline->prepare();
 519
 520         // Apply what-ifs
 521         for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
 522         {
 523                 FileTarget *tgt = vfs.get_target(cwd/ *i);
 524                 if(!tgt)
 525                 {
 526                         IO::print(IO::cerr, "Unknown what-if target %s\n", *i);
 527                         return -1;
 528                 }
 529                 tgt->touch();
 530         }
 531
 532         if(build_all)
 533         {
 534                 for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 535                         if(i->second->is_buildable() && !i->second->needs_rebuild())
 536                                 i->second->force_rebuild();
 537         }
 538
 539         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 540                 if(SourcePackage *spkg = dynamic_cast<SourcePackage *>(i->second))
 541                         spkg->get_deps_cache().save();
 542
 543         return 0;
 544 }
 545
 546 int Builder::do_build()
 547 {
 548         Target *cmdline = get_target("cmdline");
 549
 550         unsigned total = 0;
 551         for(map<string, Target *>::const_iterator i=targets.begin(); i!=targets.end(); ++i)
 552                 if(i->second->is_buildable() && i->second->needs_rebuild())
 553                         ++total;
 554
 555         if(!total)
 556         {
 557                 IO::print("Already up to date\n");
 558                 return 0;
 559         }
 560         if(verbose>=1)
 561                 IO::print("Will build %d target%s\n", total, (total!=1 ? "s" : ""));
 562
 563         vector<Task *> tasks;
 564
 565         unsigned count = 0;
 566
 567         bool fail = false;
 568         bool finish = false;
 569
 570         while(!finish)
 571         {
 572                 if(tasks.size()<jobs && !fail)
 573                 {
 574                         Target *tgt = cmdline->get_buildable_target();
 575                         if(tgt)
 576                         {
 577                                 if(tgt->get_tool())
 578                                         IO::print("%-4s  %s\n", tgt->get_tool()->get_tag(), tgt->get_name());
 579                                 Task *task = tgt->build();
 580                                 if(task)
 581                                 {
 582                                         if(verbose>=2)
 583                                                 IO::print("%s\n", task->get_command());
 584                                         if(dry_run)
 585                                         {
 586                                                 task->signal_finished.emit(true);
 587                                                 delete task;
 588                                         }
 589                                         else
 590                                         {
 591                                                 task->start();
 592                                                 tasks.push_back(task);
 593                                         }
 594                                 }
 595
 596                                 if(show_progress)
 597                                         IO::print("%d of %d target%s built\033[1G", count, total, (total!=1 ? "s" : ""));
 598                         }
 599                         else if(tasks.empty())
 600                                 finish = true;
 601                 }
 602                 else
 603                         Time::sleep(10*Time::msec);
 604
 605                 for(unsigned i=0; i<tasks.size();)
 606                 {
 607                         Task::Status status = tasks[i]->check();
 608                         if(status!=Task::RUNNING)
 609                         {
 610                                 ++count;
 611
 612                                 delete tasks[i];
 613                                 tasks.erase(tasks.begin()+i);
 614                                 if(status==Task::ERROR)
 615                                         fail = true;
 616                                 if(tasks.empty() && fail)
 617                                         finish = true;
 618                         }
 619                         else
 620                                 ++i;
 621                 }
 622         }
 623
 624         if(show_progress)
 625                 IO::print("\033[K");
 626         if(fail)
 627                 IO::print("Build failed\n");
 628         else if(show_progress)
 629                 IO::print("Build complete\n");
 630
 631         return fail;
 632 }
 633
 634 int Builder::do_clean()
 635 {
 636         // Cleaning doesn't care about ordering, so a simpler method can be used
 637
 638         set<Target *> clean_tgts;
 639         list<Target *> queue;
 640         queue.push_back(get_target("cmdline"));
 641
 642         while(!queue.empty())
 643         {
 644                 Target *tgt = queue.front();
 645                 queue.erase(queue.begin());
 646
 647                 if(tgt->is_buildable() && (tgt->get_package()==main_pkg || clean>=2))
 648                         clean_tgts.insert(tgt);
 649
 650                 const Target::Dependencies &deps = tgt->get_depends();
 651                 for(list<Target *>::const_iterator i=deps.begin(); i!=deps.end(); ++i)
 652                         if(!clean_tgts.count(*i))
 653                                 queue.push_back(*i);
 654         }
 655
 656         for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
 657                 if(FileTarget *ft = dynamic_cast<FileTarget *>(*i))
 658                         if(ft->get_mtime())
 659                                 FS::unlink(ft->get_path());
 660
 661         return 0;
 662 }
 663
 664 void Builder::package_help()
 665 {
 666         const Config &config = main_pkg->get_config();
 667         const Config::OptionMap &options = config.get_options();
 668
 669         IO::print("Required packages:\n  ");
 670         const PackageList &requires = main_pkg->get_requires();
 671         for(PackageList::const_iterator i=requires.begin(); i!=requires.end(); ++i)
 672         {
 673                 if(i!=requires.begin())
 674                         IO::print(", ");
 675                 IO::print((*i)->get_name());
 676         }
 677         IO::print("\n\nPackage configuration:\n");
 678         for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
 679         {
 680                 const Config::Option &opt = i->second;
 681                 IO::print("  %s: %s (%s)", opt.name, opt.descr, opt.value);
 682                 if(opt.value!=opt.defv)
 683                         IO::print(" [%s]", opt.defv);
 684                 IO::print("\n");
 685         }
 686 }
 687
 688 string Builder::usagemsg;
 689 string Builder::helpmsg;
 690
 691
 692 Builder::Loader::Loader(Builder &b, const FS::Path &s):
 693         bld(b),
 694         src(s)
 695 {
 696         add("binary_package", &Loader::binpkg);
 697         add("cross_prefix", &Loader::cross_prefix);
 698         add("profile", &Loader::profile);
 699         add("package", &Loader::package);
 700 }
 701
 702 void Builder::Loader::binpkg(const string &n)
 703 {
 704         BinaryPackage *pkg = new BinaryPackage(bld, n);
 705         load_sub(*pkg);
 706         bld.packages.insert(PackageMap::value_type(n, pkg));
 707 }
 708
 709 void Builder::Loader::cross_prefix(const string &a, const string &p)
 710 {
 711         bld.cross_prefixes[a] = p;
 712 }
 713
 714 void Builder::Loader::profile(const string &n)
 715 {
 716         StringMap prf;
 717         ProfileLoader ldr(prf);
 718         load_sub_with(ldr);
 719         bld.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
 720 }
 721
 722 void Builder::Loader::package(const string &n)
 723 {
 724         SourcePackage *pkg = new SourcePackage(bld, n, src);
 725         if(!bld.main_pkg)
 726                 bld.main_pkg = pkg;
 727
 728         load_sub(*pkg);
 729         bld.packages.insert(PackageMap::value_type(n, pkg));
 730 }
 731
 732
 733 Builder::ProfileLoader::ProfileLoader(StringMap &p):
 734         profile(p)
 735 {
 736         add("option", &ProfileLoader::option);
 737 }
 738
 739 void Builder::ProfileLoader::option(const string &o, const string &v)
 740 {
 741         profile.insert(StringMap::value_type(o, v));
 742 }