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