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 <iostream>
   9 #include <set>
  10 #include <sys/utsname.h>
  11 #include <msp/core/except.h>
  12 #include <msp/core/getopt.h>
  13 #include <msp/datafile/parser.h>
  14 #include <msp/fs/dir.h>
  15 #include <msp/fs/stat.h>
  16 #include <msp/fs/utils.h>
  17 #include <msp/io/buffered.h>
  18 #include <msp/io/except.h>
  19 #include <msp/io/file.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);
  81         getopt.add_option('b', "build",      build,        GetOpt::NO_ARG);
  82         getopt.add_option('c', "clean",      clean,        GetOpt::NO_ARG);
  83         getopt.add_option('f', "file",       build_file,   GetOpt::REQUIRED_ARG);
  84         getopt.add_option('h', "help",       help,         GetOpt::NO_ARG);
  85         getopt.add_option('j', "jobs",       jobs,         GetOpt::REQUIRED_ARG);
  86         getopt.add_option('n', "dry-run",    dry_run,      GetOpt::NO_ARG);
  87         getopt.add_option('v', "verbose",    verbose,      GetOpt::NO_ARG);
  88         getopt.add_option('A', "conf-all",   conf_all,     GetOpt::NO_ARG);
  89         getopt.add_option('B', "build-all",  build_all,    GetOpt::NO_ARG);
  90         getopt.add_option('C', "chdir",      work_dir,     GetOpt::REQUIRED_ARG);
  91         getopt.add_option('P', "progress",   show_progress, GetOpt::NO_ARG);
  92         getopt.add_option('W', "what-if",    what_if,      GetOpt::REQUIRED_ARG);
  93         getopt.add_option(     "arch",       arch,         GetOpt::REQUIRED_ARG);
  94         getopt.add_option(     "conf-only",  conf_only,    GetOpt::NO_ARG);
  95         getopt.add_option(     "full-paths", full_paths,   GetOpt::NO_ARG);
  96         //getopt.add_option(     "makefile",   create_makefile, GetOpt::NO_ARG);
  97         getopt.add_option(     "max-depth",  max_depth,    GetOpt::REQUIRED_ARG);
  98         getopt.add_option(     "prefix",     prfx,         GetOpt::REQUIRED_ARG);
  99         getopt.add_option(     "warnings",   cmdline_warn, GetOpt::REQUIRED_ARG);
 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                 chdir(work_dir.c_str());
 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                 cerr<<"No build info here.\n";
 200                 return 1;
 201         }
 202
 203         main_pkg->configure(cmdline_options, conf_all?2:1);
 204
 205         if(help)
 206         {
 207                 usage(0, "builder", false);
 208                 cout<<'\n';
 209                 package_help();
 210                 return 0;
 211         }
 212
 213         if(!conf_only && create_targets())
 214                 return 1;
 215
 216         PackageList all_reqs=main_pkg->collect_requires();
 217
 218         if(conf_only)
 219                 return 0;
 220
 221         if(verbose>=2)
 222                 cout<<"Building on "<<native_arch->get_name()<<", for "<<current_arch->get_name()<<'\n';
 223         if(verbose>=1)
 224                 cout<<all_reqs.size()<<" active packages, "<<targets.size()<<" targets\n";
 225         if(verbose>=2)
 226         {
 227                 for(PackageList::const_iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
 228                 {
 229                         cout<<' '<<(*i)->get_name();
 230                         if(dynamic_cast<SourcePackage *>(*i))
 231                                 cout<<'*';
 232                         unsigned count=0;
 233                         unsigned ood_count=0;
 234                         for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
 235                                 if(j->second->get_package()==*i)
 236                                 {
 237                                         ++count;
 238                                         if(j->second->get_rebuild())
 239                                                 ++ood_count;
 240                                 }
 241                         if(count)
 242                         {
 243                                 cout<<" ("<<count<<" targets";
 244                                 if(ood_count)
 245                                         cout<<", "<<ood_count<<" out-of-date";
 246                                 cout<<')';
 247                         }
 248                         cout<<'\n';
 249                 }
 250         }
 251
 252         if(analyzer)
 253                 analyzer->analyze();
 254
 255         if(!problems.empty())
 256         {
 257                 cerr<<"The following problems were detected:\n";
 258                 for(ProblemList::iterator i=problems.begin(); i!=problems.end(); ++i)
 259                         cerr<<"  "<<i->package<<": "<<i->descr<<'\n';
 260                 cerr<<"Please fix them and try again.\n";
 261                 return 1;
 262         }
 263
 264         //if(create_makefile
 265
 266         if(clean)
 267                 exit_code=do_clean();
 268         else if(build)
 269                 exit_code=do_build();
 270
 271         return exit_code;
 272 }
 273
 274 Package *Builder::get_package(const string &name)
 275 {
 276         PackageMap::iterator i=packages.find(format("%s/%s", name, current_arch->get_name()));
 277         if(i==packages.end())
 278                 i=packages.find(name);
 279         if(i!=packages.end())
 280                 return i->second;
 281
 282         FS::Path path=get_package_location(name);
 283         if(!path.empty() && !load_build_file(path/"Build"))
 284         {
 285                 i=packages.find(name);
 286                 if(i!=packages.end())
 287                         return i->second;
 288         }
 289
 290         // Package source not found - create a binary package
 291         Package *pkg=BinaryPackage::from_pkgconfig(*this, name);
 292
 293         packages.insert(PackageMap::value_type(name, pkg));
 294
 295         if(!pkg)
 296                 problem(name, "not found");
 297
 298         return pkg;
 299 }
 300
 301 Target *Builder::get_target(const string &n) const
 302 {
 303         TargetMap::const_iterator i=targets.find(n);
 304         if(i!=targets.end())
 305                 return i->second;
 306         return 0;
 307 }
 308
 309 Target *Builder::get_header(const string &include, const string &from, const list<string> &path)
 310 {
 311         string hash(8, 0);
 312         if(include[0]=='\"')
 313                 update_hash(hash, from);
 314         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 315                 update_hash(hash, *i);
 316
 317         string id=hash+include;
 318         TargetMap::iterator i=includes.find(id);
 319         if(i!=includes.end())
 320                 return i->second;
 321
 322         static string cxx_ver;
 323         if(cxx_ver.empty())
 324         {
 325                 StringList argv;
 326                 argv.push_back(current_arch->get_tool("CXX"));
 327                 argv.push_back("--version");
 328                 cxx_ver=Regex("[0-9]\\.[0-9.]+").match(run_command(argv))[0].str;
 329                 while(!cxx_ver.empty() && !FS::is_dir(FS::Path("/usr/include/c++")/cxx_ver))
 330                 {
 331                         unsigned dot=cxx_ver.rfind('.');
 332                         if(dot==string::npos)
 333                                 break;
 334                         cxx_ver.erase(dot);
 335                 }
 336                 if(verbose>=5)
 337                         cout<<"C++ version is "<<cxx_ver<<'\n';
 338         }
 339
 340         string fn=include.substr(1);
 341         if(verbose>=5)
 342                 cout<<"Looking for include "<<fn<<" with path "<<join(path.begin(), path.end())<<'\n';
 343
 344         StringList syspath;
 345         if(current_arch->is_native())
 346                 syspath.push_back("/usr/include");
 347         else
 348                 syspath.push_back("/usr/"+current_arch->get_prefix()+"/include");
 349         syspath.push_back((FS::Path("/usr/include/c++/")/cxx_ver).str());
 350
 351         Target *tgt=0;
 352         if(include[0]=='\"')
 353                 tgt=get_header(FS::Path(from)/fn);
 354         for(list<string>::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
 355                 tgt=get_header(cwd/ *j/fn);
 356         for(list<string>::const_iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
 357                 tgt=get_header(FS::Path(*j)/fn);
 358
 359         includes.insert(TargetMap::value_type(id, tgt));
 360
 361         return tgt;
 362 }
 363
 364 Target *Builder::get_library(const string &lib, const list<string> &path, LibMode mode)
 365 {
 366         string hash(8, 0);
 367         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 368                 update_hash(hash, *i);
 369
 370         string id=hash+string(1, mode)+lib;
 371         TargetMap::iterator i=libraries.find(id);
 372         if(i!=libraries.end())
 373                 return i->second;
 374
 375         StringList syspath;
 376         if(current_arch->is_native())
 377         {
 378                 syspath.push_back("/lib");
 379                 syspath.push_back("/usr/lib");
 380         }
 381         else
 382                 syspath.push_back("/usr/"+current_arch->get_prefix()+"/lib");
 383
 384         if(verbose>=5)
 385                 cout<<"Looking for library "<<lib<<" with path "<<join(path.begin(), path.end())<<'\n';
 386
 387         Target *tgt=0;
 388         for(StringList::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
 389                 tgt=get_library(lib, cwd/ *j, mode);
 390         for(StringList::iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
 391                 tgt=get_library(lib, *j, mode);
 392
 393         libraries.insert(TargetMap::value_type(id, tgt));
 394
 395         return tgt;
 396 }
 397
 398 const Architecture &Builder::get_architecture(const string &arch) const
 399 {
 400         ArchMap::const_iterator i=archs.find(arch);
 401         if(i==archs.end())
 402                 throw KeyError("Unknown architecture", arch);
 403
 404         return i->second;
 405 }
 406
 407 void Builder::apply_profile_template(Config &config, const string &pt) const
 408 {
 409         vector<string> parts=split(pt, '-');
 410
 411         for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
 412         {
 413                 ProfileTemplateMap::const_iterator j=profile_tmpl.find(*i);
 414                 if(j==profile_tmpl.end())
 415                         continue;
 416
 417                 config.update(j->second);
 418         }
 419 }
 420
 421 void Builder::problem(const string &p, const string &d)
 422 {
 423         problems.push_back(Problem(p, d));
 424 }
 425
 426 void Builder::add_target(Target *t)
 427 {
 428         targets.insert(TargetMap::value_type(t->get_name(), t));
 429         new_tgts.push_back(t);
 430 }
 431
 432 void Builder::usage(const char *reason, const char *argv0, bool brief)
 433 {
 434         if(reason)
 435                 cerr<<reason<<'\n';
 436
 437         if(brief)
 438                 cerr<<"Usage: "<<argv0<<" [-a|--analyze MODE] [-b|--build] [-c|--clean] [-f|--file FILE] [-h|--help] [-j|--jobs NUM] [-n||--dry-run] [-v|--verbose] [-A|--conf-all] [-B|--build-all] [-C|--chdir DIRECTORY] [-W|--what-if FILE] [--chrome] [--conf-only] [--full-paths] [--max-depth NUM] [<target> ...]\n";
 439         else
 440         {
 441                 cerr<<
 442                         "Usage: "<<argv0<<" [options] [<target> ...]\n"
 443                         "\n"
 444                         "Options:\n"
 445                         "  -a, --analyze MODE  Perform analysis.  MODE can be deps, alldeps or rebuild.\n"
 446                         "  -b, --build         Perform build even if doing analysis.\n"
 447                         "  -c, --clean         Clean buildable targets.\n"
 448                         "  -f, --file FILE     Read info from FILE instead of Build.\n"
 449                         "  -h, --help          Print this message.\n"
 450                         "  -j, --jobs NUM      Run NUM commands at once, whenever possible.\n"
 451                         "  -n, --dry-run       Don't actually do anything, only show what would be done.\n"
 452                         "  -v, --verbose       Print more information about what's going on.\n"
 453                         "  -A, --conf-all      Apply configuration to all packages.\n"
 454                         "  -B, --build-all     Build all targets unconditionally.\n"
 455                         "  -C, --chdir DIR     Change to DIR before doing anything else.\n"
 456                         "  -P, --progress      Display progress while building.\n"
 457                         "  -W, --what-if FILE  Pretend that FILE has changed.\n"
 458                         "  --arch ARCH         Architecture to build for.\n"
 459                         "  --conf-only         Stop after configuring packages.\n"
 460                         "  --full-paths        Output full paths in analysis.\n"
 461                         //"  --makefile          Create a makefile for this package.\n"
 462                         "  --max-depth NUM     Maximum depth to show in analysis.\n"
 463                         "  --prefix DIR        Directory to install things to.\n"
 464                         "  --warnings LIST     Compiler warnings to use.\n";
 465         }
 466 }
 467
 468 FS::Path Builder::get_package_location(const string &name)
 469 {
 470         if(verbose>=3)
 471                 cout<<"Looking for package "<<name<<'\n';
 472
 473         // Try to get source directory with pkgconfig
 474         list<string> argv;
 475         argv.push_back("pkg-config");
 476         argv.push_back("--variable=source");
 477         argv.push_back(name);
 478         if(verbose>=4)
 479                 cout<<"Running "<<join(argv.begin(), argv.end())<<'\n';
 480         string srcdir=strip(run_command(argv));
 481         if(!srcdir.empty())
 482                 return srcdir;
 483
 484         if(pkg_dirs.empty())
 485         {
 486                 for(list<FS::Path>::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
 487                 {
 488                         list<string> files=list_files(*i);
 489                         for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
 490                         {
 491                                 FS::Path full=*i / *j;
 492                                 if(FS::exists(full/"Build"))
 493                                         pkg_dirs.push_back(full);
 494                         }
 495                 }
 496                 if(verbose>=3)
 497                         cout<<pkg_dirs.size()<<" packages found in path\n";
 498         }
 499
 500         bool msp=!name.compare(0, 3, "msp");
 501         for(list<FS::Path>::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
 502         {
 503                 string base=basename(*i);
 504                 unsigned dash=base.rfind('-');
 505
 506                 if(!base.compare(0, dash, name))
 507                         return *i;
 508                 else if(msp && !base.compare(0, dash-3, name, 3, string::npos))
 509                         return *i;
 510         }
 511
 512         return FS::Path();
 513 }
 514
 515 int Builder::load_build_file(const FS::Path &fn)
 516 {
 517         try
 518         {
 519                 IO::BufferedFile in(fn.str());
 520
 521                 if(verbose>=3)
 522                         cout<<"Reading "<<fn<<'\n';
 523
 524                 DataFile::Parser parser(in, fn.str());
 525                 Loader loader(*this, fn.subpath(0, fn.size()-1));
 526                 loader.load(parser);
 527         }
 528         catch(const IO::FileNotFound &)
 529         {
 530                 return -1;
 531         }
 532
 533         return 0;
 534 }
 535
 536 int Builder::create_targets()
 537 {
 538         Target *world=new VirtualTarget(*this, "world");
 539
 540         Target *def_tgt=new VirtualTarget(*this, "default");
 541         world->add_depend(def_tgt);
 542
 543         Target *install=new VirtualTarget(*this, "install");
 544         world->add_depend(install);
 545
 546         Target *tarballs=new VirtualTarget(*this, "tarballs");
 547         world->add_depend(tarballs);
 548
 549         PackageList all_reqs=main_pkg->collect_requires();
 550         for(PackageList::iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
 551         {
 552                 SourcePackage *spkg=dynamic_cast<SourcePackage *>(*i);
 553                 if(!spkg)
 554                         continue;
 555
 556                 const ComponentList &components=spkg->get_components();
 557                 for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
 558                         j->create_targets();
 559
 560                 if(spkg->get_install_flags()&(SourcePackage::LIB|SourcePackage::INCLUDE))
 561                 {
 562                         PkgConfig *pc=new PkgConfig(*this, *spkg);
 563                         install->add_depend(new Install(*this, *spkg, *pc));
 564                 }
 565
 566                 tarballs->add_depend(new TarBall(*this, *spkg));
 567         }
 568
 569         // Find dependencies until no new targets are created
 570         while(!new_tgts.empty())
 571         {
 572                 Target *tgt=new_tgts.front();
 573                 new_tgts.erase(new_tgts.begin());
 574                 tgt->find_depends();
 575                 if(!tgt->get_depends_ready())
 576                         new_tgts.push_back(tgt);
 577         }
 578
 579         // Apply what-ifs
 580         for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
 581         {
 582                 Target *tgt=get_target((cwd/ *i).str());
 583                 if(!tgt)
 584                 {
 585                         cerr<<"Unknown what-if target "<<*i<<'\n';
 586                         return -1;
 587                 }
 588                 tgt->touch();
 589         }
 590
 591         // Make the cmdline target depend on all targets mentioned on the command line
 592         Target *cmdline=new VirtualTarget(*this, "cmdline");
 593         bool build_world=false;
 594         for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
 595         {
 596                 Target *tgt=get_target(*i);
 597                 if(!tgt)
 598                         tgt=get_target((cwd/ *i).str());
 599                 if(!tgt)
 600                 {
 601                         cerr<<"I don't know anything about "<<*i<<'\n';
 602                         return -1;
 603                 }
 604                 if(tgt==world)
 605                         build_world=true;
 606                 cmdline->add_depend(tgt);
 607         }
 608
 609         /* If world is to be built, prepare cmdline.  If not, add cmdline to world
 610         and prepare world.  I don't really like this, but it keeps the graph
 611         acyclic.
 612
 613         XXX Could we skip preparing targets we are not interested in? */
 614         if(build_world)
 615                 cmdline->prepare();
 616         else
 617         {
 618                 world->add_depend(cmdline);
 619                 world->prepare();
 620         }
 621
 622         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 623                 if(SourcePackage *spkg=dynamic_cast<SourcePackage *>(i->second))
 624                         spkg->get_deps_cache().save();
 625
 626         return 0;
 627 }
 628
 629 Target *Builder::get_header(const Msp::FS::Path &fn)
 630 {
 631         Target *tgt=get_target(fn.str());
 632         if(tgt) return tgt;
 633
 634         if(FS::is_reg(fn))
 635         {
 636                 tgt=new SystemHeader(*this, fn.str());
 637                 return tgt;
 638         }
 639         return 0;
 640 }
 641
 642 Target *Builder::get_library(const string &lib, const FS::Path &path, LibMode mode)
 643 {
 644         // Populate a list of candidate filenames
 645         StringList candidates;
 646
 647         if(mode!=ALL_STATIC)
 648         {
 649                 if(current_arch->get_name()=="win32")
 650                 {
 651                         candidates.push_back("lib"+lib+".dll");
 652                         candidates.push_back(lib+".dll");
 653                 }
 654                 else
 655                         candidates.push_back("lib"+lib+".so");
 656         }
 657
 658         /* Static libraries are always considered, since sometimes shared versions
 659         may not be available */
 660         candidates.push_back("lib"+lib+".a");
 661         if(current_arch->get_name()=="win32")
 662                 candidates.push_back("lib"+lib+".dll.a");
 663
 664         for(StringList::iterator i=candidates.begin(); i!=candidates.end(); ++i)
 665         {
 666                 string full=(path/ *i).str();
 667                 Target *tgt=get_target(full);
 668
 669                 if(tgt)
 670                 {
 671                         Target *real_tgt=tgt;
 672                         if(dynamic_cast<Install *>(tgt))
 673                                 real_tgt=real_tgt->get_depends().front();
 674
 675                         /* Ignore dynamic libraries from local packages unless library mode is
 676                         DYNAMIC */
 677                         if(dynamic_cast<SharedLibrary *>(real_tgt) && mode!=DYNAMIC)
 678                                 continue;
 679                         else if(tgt)
 680                                 return tgt;
 681                 }
 682                 else if(FS::is_reg(full))
 683                 {
 684                         tgt=new SystemLibrary(*this, full);
 685                         return tgt;
 686                 }
 687         }
 688
 689         return 0;
 690 }
 691
 692 int Builder::do_build()
 693 {
 694         Target *cmdline=get_target("cmdline");
 695
 696         unsigned total=cmdline->count_rebuild();
 697         if(!total)
 698         {
 699                 cout<<"Already up to date\n";
 700                 return 0;
 701         }
 702         if(verbose>=1)
 703                 cout<<"Will build "<<total<<" target(s)\n";
 704
 705         vector<Action *> actions;
 706
 707         unsigned count=0;
 708
 709         bool fail=false;
 710         bool finish=false;
 711
 712         while(!finish)
 713         {
 714                 if(actions.size()<jobs && !fail)
 715                 {
 716                         Target *tgt=cmdline->get_buildable_target();
 717                         if(tgt)
 718                         {
 719                                 Action *action=tgt->build();
 720                                 if(action)
 721                                         actions.push_back(action);
 722
 723                                 if(show_progress)
 724                                 {
 725                                         cout<<count<<" of "<<total<<" targets built\033[1G";
 726                                         cout.flush();
 727                                 }
 728                         }
 729                         else if(actions.empty())
 730                                 finish=true;
 731                 }
 732                 else
 733                         Time::sleep(10*Time::msec);
 734
 735                 for(unsigned i=0; i<actions.size();)
 736                 {
 737                         int status=actions[i]->check();
 738                         if(status>=0)
 739                         {
 740                                 ++count;
 741
 742                                 delete actions[i];
 743                                 actions.erase(actions.begin()+i);
 744                                 if(status>0)
 745                                         fail=true;
 746                                 if(actions.empty() && fail)
 747                                         finish=true;
 748                         }
 749                         else
 750                                 ++i;
 751                 }
 752         }
 753
 754         if(show_progress)
 755                 cout<<"\033[K";
 756         if(fail)
 757                 cout<<"Build failed\n";
 758         else if(show_progress)
 759                 cout<<"Build complete\n";
 760
 761         return fail?1:0;
 762 }
 763
 764 int Builder::do_clean()
 765 {
 766         // Cleaning doesn't care about ordering, so a simpler method can be used
 767
 768         set<Target *> clean_tgts;
 769         TargetList queue;
 770         queue.push_back(get_target("cmdline"));
 771
 772         while(!queue.empty())
 773         {
 774                 Target *tgt=queue.front();
 775                 queue.erase(queue.begin());
 776
 777                 if(tgt->get_buildable() && (tgt->get_package()==main_pkg || clean>=2))
 778                         clean_tgts.insert(tgt);
 779
 780                 const TargetList &deps=tgt->get_depends();
 781                 for(TargetList::const_iterator i=deps.begin(); i!=deps.end(); ++i)
 782                         if(!clean_tgts.count(*i))
 783                                 queue.push_back(*i);
 784         }
 785
 786         for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
 787         {
 788                 Action *action=new Unlink(*this, **i);
 789                 while(action->check()<0) ;
 790                 delete action;
 791         }
 792
 793         return 0;
 794 }
 795
 796 void Builder::package_help()
 797 {
 798         const Config &config=main_pkg->get_config();
 799         const Config::OptionMap &options=config.get_options();
 800
 801         cout<<"Required packages:\n  ";
 802         const PackageList &requires=main_pkg->get_requires();
 803         for(PackageList::const_iterator i=requires.begin(); i!=requires.end(); ++i)
 804         {
 805                 if(i!=requires.begin())
 806                         cout<<", ";
 807                 cout<<(*i)->get_name();
 808         }
 809         cout<<"\n\n";
 810         cout<<"Package configuration:\n";
 811         for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
 812         {
 813                 const Config::Option &opt=i->second;
 814                 cout<<"  "<<opt.name<<": "<<opt.descr<<" ("<<opt.value<<") ["<<opt.defv<<"]\n";
 815         }
 816 }
 817
 818 Application::RegApp<Builder> Builder::reg;
 819
 820
 821 Builder::Loader::Loader(Builder &b, const FS::Path &s):
 822         bld(b),
 823         src(s)
 824 {
 825         add("architecture", &Loader::architecture);
 826         add("binary_package", &Loader::binpkg);
 827         add("profile", &Loader::profile);
 828         add("package", &Loader::package);
 829 }
 830
 831 void Builder::Loader::architecture(const string &n)
 832 {
 833         Architecture arch(bld, n);
 834         load_sub(arch);
 835         bld.archs.insert(ArchMap::value_type(n, arch));
 836 }
 837
 838 void Builder::Loader::binpkg(const string &n)
 839 {
 840         BinaryPackage *pkg=new BinaryPackage(bld, n);
 841         load_sub(*pkg);
 842         bld.packages.insert(PackageMap::value_type(n, pkg));
 843 }
 844
 845 void Builder::Loader::profile(const string &n)
 846 {
 847         StringMap prf;
 848         ProfileLoader ldr(prf);
 849         load_sub_with(ldr);
 850         bld.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
 851 }
 852
 853 void Builder::Loader::package(const string &n)
 854 {
 855         SourcePackage *pkg=new SourcePackage(bld, n, src);
 856         if(!bld.main_pkg)
 857                 bld.main_pkg=pkg;
 858
 859         load_sub(*pkg);
 860         bld.packages.insert(PackageMap::value_type(n, pkg));
 861 }
 862
 863
 864 Builder::ProfileLoader::ProfileLoader(StringMap &p):
 865         profile(p)
 866 {
 867         add("option", &ProfileLoader::option);
 868 }
 869
 870 void Builder::ProfileLoader::option(const string &o, const string &v)
 871 {
 872         profile.insert(StringMap::value_type(o, v));
 873 }