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                 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                 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         // XXX Used for getting targets by path.  get_target(const FS::Path &)?
 304         TargetMap::const_iterator i=targets.find(n);
 305         if(i!=targets.end())
 306                 return i->second;
 307         return 0;
 308 }
 309
 310 Target *Builder::get_header(const string &include, const FS::Path &from, const list<string> &path)
 311 {
 312         string hash(8, 0);
 313         if(include[0]=='\"')
 314                 update_hash(hash, from.str());
 315         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 316                 update_hash(hash, *i);
 317
 318         string id=hash+include;
 319         TargetMap::iterator i=includes.find(id);
 320         if(i!=includes.end())
 321                 return i->second;
 322
 323         static string cxx_ver;
 324         if(cxx_ver.empty())
 325         {
 326                 StringList argv;
 327                 argv.push_back(current_arch->get_tool("CXX"));
 328                 argv.push_back("--version");
 329                 cxx_ver=Regex("[0-9]\\.[0-9.]+").match(run_command(argv))[0].str;
 330                 while(!cxx_ver.empty() && !FS::is_dir(FS::Path("/usr/include/c++")/cxx_ver))
 331                 {
 332                         unsigned dot=cxx_ver.rfind('.');
 333                         if(dot==string::npos)
 334                                 break;
 335                         cxx_ver.erase(dot);
 336                 }
 337                 if(verbose>=5)
 338                         cout<<"C++ version is "<<cxx_ver<<'\n';
 339         }
 340
 341         string fn=include.substr(1);
 342         if(verbose>=5)
 343                 cout<<"Looking for include "<<fn<<" from "<<from<<" with path "<<join(path.begin(), path.end())<<'\n';
 344
 345         StringList syspath;
 346         if(current_arch->is_native())
 347                 syspath.push_back("/usr/include");
 348         else
 349                 syspath.push_back("/usr/"+current_arch->get_prefix()+"/include");
 350         syspath.push_back((FS::Path("/usr/include/c++/")/cxx_ver).str());
 351
 352         Target *tgt=0;
 353         if(include[0]=='\"')
 354                 tgt=get_header(FS::Path(from)/fn);
 355         for(list<string>::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
 356                 tgt=get_header(cwd/ *j/fn);
 357         for(list<string>::const_iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
 358                 tgt=get_header(FS::Path(*j)/fn);
 359
 360         includes.insert(TargetMap::value_type(id, tgt));
 361
 362         return tgt;
 363 }
 364
 365 Target *Builder::get_library(const string &lib, const list<string> &path, LibMode mode)
 366 {
 367         string hash(8, 0);
 368         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 369                 update_hash(hash, *i);
 370
 371         string id=hash+string(1, mode)+lib;
 372         TargetMap::iterator i=libraries.find(id);
 373         if(i!=libraries.end())
 374                 return i->second;
 375
 376         StringList syspath;
 377         if(current_arch->is_native())
 378         {
 379                 syspath.push_back("/lib");
 380                 syspath.push_back("/usr/lib");
 381         }
 382         else
 383                 syspath.push_back("/usr/"+current_arch->get_prefix()+"/lib");
 384
 385         if(verbose>=5)
 386                 cout<<"Looking for library "<<lib<<" with path "<<join(path.begin(), path.end())<<'\n';
 387
 388         Target *tgt=0;
 389         for(StringList::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
 390                 tgt=get_library(lib, cwd/ *j, mode);
 391         for(StringList::iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
 392                 tgt=get_library(lib, *j, mode);
 393
 394         libraries.insert(TargetMap::value_type(id, tgt));
 395
 396         return tgt;
 397 }
 398
 399 const Architecture &Builder::get_architecture(const string &arch) const
 400 {
 401         ArchMap::const_iterator i=archs.find(arch);
 402         if(i==archs.end())
 403                 throw KeyError("Unknown architecture", arch);
 404
 405         return i->second;
 406 }
 407
 408 void Builder::apply_profile_template(Config &config, const string &pt) const
 409 {
 410         vector<string> parts=split(pt, '-');
 411
 412         for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
 413         {
 414                 ProfileTemplateMap::const_iterator j=profile_tmpl.find(*i);
 415                 if(j==profile_tmpl.end())
 416                         continue;
 417
 418                 config.update(j->second);
 419         }
 420 }
 421
 422 void Builder::problem(const string &p, const string &d)
 423 {
 424         problems.push_back(Problem(p, d));
 425 }
 426
 427 void Builder::add_target(Target *t)
 428 {
 429         targets.insert(TargetMap::value_type(t->get_name(), t));
 430         new_tgts.push_back(t);
 431 }
 432
 433 void Builder::usage(const char *reason, const char *argv0, bool brief)
 434 {
 435         if(reason)
 436                 cerr<<reason<<'\n';
 437
 438         if(brief)
 439                 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";
 440         else
 441         {
 442                 cerr<<
 443                         "Usage: "<<argv0<<" [options] [<target> ...]\n"
 444                         "\n"
 445                         "Options:\n"
 446                         "  -a, --analyze MODE  Perform analysis.  MODE can be deps, alldeps or rebuild.\n"
 447                         "  -b, --build         Perform build even if doing analysis.\n"
 448                         "  -c, --clean         Clean buildable targets.\n"
 449                         "  -f, --file FILE     Read info from FILE instead of Build.\n"
 450                         "  -h, --help          Print this message.\n"
 451                         "  -j, --jobs NUM      Run NUM commands at once, whenever possible.\n"
 452                         "  -n, --dry-run       Don't actually do anything, only show what would be done.\n"
 453                         "  -v, --verbose       Print more information about what's going on.\n"
 454                         "  -A, --conf-all      Apply configuration to all packages.\n"
 455                         "  -B, --build-all     Build all targets unconditionally.\n"
 456                         "  -C, --chdir DIR     Change to DIR before doing anything else.\n"
 457                         "  -P, --progress      Display progress while building.\n"
 458                         "  -W, --what-if FILE  Pretend that FILE has changed.\n"
 459                         "  --arch ARCH         Architecture to build for.\n"
 460                         "  --conf-only         Stop after configuring packages.\n"
 461                         "  --full-paths        Output full paths in analysis.\n"
 462                         //"  --makefile          Create a makefile for this package.\n"
 463                         "  --max-depth NUM     Maximum depth to show in analysis.\n"
 464                         "  --prefix DIR        Directory to install things to.\n"
 465                         "  --warnings LIST     Compiler warnings to use.\n";
 466         }
 467 }
 468
 469 FS::Path Builder::get_package_location(const string &name)
 470 {
 471         if(verbose>=3)
 472                 cout<<"Looking for package "<<name<<'\n';
 473
 474         // Try to get source directory with pkgconfig
 475         list<string> argv;
 476         argv.push_back("pkg-config");
 477         argv.push_back("--variable=source");
 478         argv.push_back(name);
 479         if(verbose>=4)
 480                 cout<<"Running "<<join(argv.begin(), argv.end())<<'\n';
 481         string srcdir=strip(run_command(argv));
 482         if(!srcdir.empty())
 483                 return srcdir;
 484
 485         if(pkg_dirs.empty())
 486         {
 487                 for(list<FS::Path>::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
 488                 {
 489                         list<string> files=list_files(*i);
 490                         for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
 491                         {
 492                                 FS::Path full=*i / *j;
 493                                 if(FS::exists(full/"Build"))
 494                                         pkg_dirs.push_back(full);
 495                         }
 496                 }
 497                 if(verbose>=3)
 498                         cout<<pkg_dirs.size()<<" packages found in path\n";
 499         }
 500
 501         bool msp=!name.compare(0, 3, "msp");
 502         for(list<FS::Path>::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
 503         {
 504                 string base=basename(*i);
 505                 unsigned dash=base.rfind('-');
 506
 507                 if(!base.compare(0, dash, name))
 508                         return *i;
 509                 else if(msp && !base.compare(0, dash-3, name, 3, string::npos))
 510                         return *i;
 511         }
 512
 513         return FS::Path();
 514 }
 515
 516 int Builder::load_build_file(const FS::Path &fn)
 517 {
 518         try
 519         {
 520                 IO::BufferedFile in(fn.str());
 521
 522                 if(verbose>=3)
 523                         cout<<"Reading "<<fn<<'\n';
 524
 525                 DataFile::Parser parser(in, fn.str());
 526                 Loader loader(*this, fn.subpath(0, fn.size()-1));
 527                 loader.load(parser);
 528         }
 529         catch(const IO::FileNotFound &)
 530         {
 531                 return -1;
 532         }
 533
 534         return 0;
 535 }
 536
 537 int Builder::create_targets()
 538 {
 539         Target *world=new VirtualTarget(*this, "world");
 540
 541         Target *def_tgt=new VirtualTarget(*this, "default");
 542         world->add_depend(def_tgt);
 543
 544         Target *install=new VirtualTarget(*this, "install");
 545         world->add_depend(install);
 546
 547         Target *tarballs=new VirtualTarget(*this, "tarballs");
 548         world->add_depend(tarballs);
 549
 550         PackageList all_reqs=main_pkg->collect_requires();
 551         for(PackageList::iterator i=all_reqs.begin(); i!=all_reqs.end(); ++i)
 552         {
 553                 SourcePackage *spkg=dynamic_cast<SourcePackage *>(*i);
 554                 if(!spkg)
 555                         continue;
 556
 557                 const ComponentList &components=spkg->get_components();
 558                 for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
 559                         j->create_targets();
 560
 561                 if(spkg->get_install_flags()&(SourcePackage::LIB|SourcePackage::INCLUDE))
 562                 {
 563                         PkgConfig *pc=new PkgConfig(*this, *spkg);
 564                         install->add_depend(new Install(*this, *spkg, *pc));
 565                 }
 566
 567                 tarballs->add_depend(new TarBall(*this, *spkg));
 568         }
 569
 570         // Find dependencies until no new targets are created
 571         while(!new_tgts.empty())
 572         {
 573                 Target *tgt=new_tgts.front();
 574                 new_tgts.erase(new_tgts.begin());
 575                 tgt->find_depends();
 576                 if(!tgt->get_depends_ready())
 577                         new_tgts.push_back(tgt);
 578         }
 579
 580         // Apply what-ifs
 581         for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
 582         {
 583                 Target *tgt=get_target((cwd/ *i).str());
 584                 if(!tgt)
 585                 {
 586                         cerr<<"Unknown what-if target "<<*i<<'\n';
 587                         return -1;
 588                 }
 589                 tgt->touch();
 590         }
 591
 592         // Make the cmdline target depend on all targets mentioned on the command line
 593         Target *cmdline=new VirtualTarget(*this, "cmdline");
 594         bool build_world=false;
 595         for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
 596         {
 597                 Target *tgt=get_target(*i);
 598                 if(!tgt)
 599                         tgt=get_target((cwd/ *i).str());
 600                 if(!tgt)
 601                 {
 602                         cerr<<"I don't know anything about "<<*i<<'\n';
 603                         return -1;
 604                 }
 605                 if(tgt==world)
 606                         build_world=true;
 607                 cmdline->add_depend(tgt);
 608         }
 609
 610         /* If world is to be built, prepare cmdline.  If not, add cmdline to world
 611         and prepare world.  I don't really like this, but it keeps the graph
 612         acyclic.
 613
 614         XXX Could we skip preparing targets we are not interested in? */
 615         if(build_world)
 616                 cmdline->prepare();
 617         else
 618         {
 619                 world->add_depend(cmdline);
 620                 world->prepare();
 621         }
 622
 623         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 624                 if(SourcePackage *spkg=dynamic_cast<SourcePackage *>(i->second))
 625                         spkg->get_deps_cache().save();
 626
 627         return 0;
 628 }
 629
 630 Target *Builder::get_header(const Msp::FS::Path &fn)
 631 {
 632         Target *tgt=get_target(fn.str());
 633         if(tgt) return tgt;
 634
 635         if(FS::is_reg(fn))
 636         {
 637                 tgt=new SystemHeader(*this, fn.str());
 638                 return tgt;
 639         }
 640         return 0;
 641 }
 642
 643 Target *Builder::get_library(const string &lib, const FS::Path &path, LibMode mode)
 644 {
 645         // Populate a list of candidate filenames
 646         StringList candidates;
 647
 648         if(mode!=ALL_STATIC)
 649         {
 650                 if(current_arch->get_name()=="win32")
 651                 {
 652                         candidates.push_back("lib"+lib+".dll");
 653                         candidates.push_back(lib+".dll");
 654                 }
 655                 else
 656                         candidates.push_back("lib"+lib+".so");
 657         }
 658
 659         /* Static libraries are always considered, since sometimes shared versions
 660         may not be available */
 661         candidates.push_back("lib"+lib+".a");
 662         if(current_arch->get_name()=="win32")
 663                 candidates.push_back("lib"+lib+".dll.a");
 664
 665         for(StringList::iterator i=candidates.begin(); i!=candidates.end(); ++i)
 666         {
 667                 string full=(path/ *i).str();
 668                 Target *tgt=get_target(full);
 669
 670                 if(tgt)
 671                 {
 672                         Target *real_tgt=tgt;
 673                         if(Install *inst=dynamic_cast<Install *>(tgt))
 674                                 real_tgt=&inst->get_source();
 675
 676                         /* Ignore dynamic libraries from local packages unless library mode is
 677                         DYNAMIC */
 678                         if(dynamic_cast<SharedLibrary *>(real_tgt) && mode!=DYNAMIC)
 679                                 continue;
 680                         else if(tgt)
 681                                 return tgt;
 682                 }
 683                 else if(FS::is_reg(full))
 684                 {
 685                         tgt=new SystemLibrary(*this, full);
 686                         return tgt;
 687                 }
 688         }
 689
 690         return 0;
 691 }
 692
 693 int Builder::do_build()
 694 {
 695         Target *cmdline=get_target("cmdline");
 696
 697         unsigned total=cmdline->count_rebuild();
 698         if(!total)
 699         {
 700                 cout<<"Already up to date\n";
 701                 return 0;
 702         }
 703         if(verbose>=1)
 704                 cout<<"Will build "<<total<<" target(s)\n";
 705
 706         vector<Action *> actions;
 707
 708         unsigned count=0;
 709
 710         bool fail=false;
 711         bool finish=false;
 712
 713         while(!finish)
 714         {
 715                 if(actions.size()<jobs && !fail)
 716                 {
 717                         Target *tgt=cmdline->get_buildable_target();
 718                         if(tgt)
 719                         {
 720                                 Action *action=tgt->build();
 721                                 if(action)
 722                                         actions.push_back(action);
 723
 724                                 if(show_progress)
 725                                 {
 726                                         cout<<count<<" of "<<total<<" targets built\033[1G";
 727                                         cout.flush();
 728                                 }
 729                         }
 730                         else if(actions.empty())
 731                                 finish=true;
 732                 }
 733                 else
 734                         Time::sleep(10*Time::msec);
 735
 736                 for(unsigned i=0; i<actions.size();)
 737                 {
 738                         int status=actions[i]->check();
 739                         if(status>=0)
 740                         {
 741                                 ++count;
 742
 743                                 delete actions[i];
 744                                 actions.erase(actions.begin()+i);
 745                                 if(status>0)
 746                                         fail=true;
 747                                 if(actions.empty() && fail)
 748                                         finish=true;
 749                         }
 750                         else
 751                                 ++i;
 752                 }
 753         }
 754
 755         if(show_progress)
 756                 cout<<"\033[K";
 757         if(fail)
 758                 cout<<"Build failed\n";
 759         else if(show_progress)
 760                 cout<<"Build complete\n";
 761
 762         return fail?1:0;
 763 }
 764
 765 int Builder::do_clean()
 766 {
 767         // Cleaning doesn't care about ordering, so a simpler method can be used
 768
 769         set<Target *> clean_tgts;
 770         TargetList queue;
 771         queue.push_back(get_target("cmdline"));
 772
 773         while(!queue.empty())
 774         {
 775                 Target *tgt=queue.front();
 776                 queue.erase(queue.begin());
 777
 778                 if(tgt->get_buildable() && (tgt->get_package()==main_pkg || clean>=2))
 779                         clean_tgts.insert(tgt);
 780
 781                 const TargetList &deps=tgt->get_depends();
 782                 for(TargetList::const_iterator i=deps.begin(); i!=deps.end(); ++i)
 783                         if(!clean_tgts.count(*i))
 784                                 queue.push_back(*i);
 785         }
 786
 787         for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
 788                 if(FileTarget *ft=dynamic_cast<FileTarget *>(*i))
 789                 {
 790                         Action *action=new Unlink(*this, *ft);
 791                         while(action->check()<0) ;
 792                         delete action;
 793                 }
 794
 795         return 0;
 796 }
 797
 798 void Builder::package_help()
 799 {
 800         const Config &config=main_pkg->get_config();
 801         const Config::OptionMap &options=config.get_options();
 802
 803         cout<<"Required packages:\n  ";
 804         const PackageList &requires=main_pkg->get_requires();
 805         for(PackageList::const_iterator i=requires.begin(); i!=requires.end(); ++i)
 806         {
 807                 if(i!=requires.begin())
 808                         cout<<", ";
 809                 cout<<(*i)->get_name();
 810         }
 811         cout<<"\n\n";
 812         cout<<"Package configuration:\n";
 813         for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
 814         {
 815                 const Config::Option &opt=i->second;
 816                 cout<<"  "<<opt.name<<": "<<opt.descr<<" ("<<opt.value<<") ["<<opt.defv<<"]\n";
 817         }
 818 }
 819
 820 Application::RegApp<Builder> Builder::reg;
 821
 822
 823 Builder::Loader::Loader(Builder &b, const FS::Path &s):
 824         bld(b),
 825         src(s)
 826 {
 827         add("architecture", &Loader::architecture);
 828         add("binary_package", &Loader::binpkg);
 829         add("profile", &Loader::profile);
 830         add("package", &Loader::package);
 831 }
 832
 833 void Builder::Loader::architecture(const string &n)
 834 {
 835         Architecture arch(bld, n);
 836         load_sub(arch);
 837         bld.archs.insert(ArchMap::value_type(n, arch));
 838 }
 839
 840 void Builder::Loader::binpkg(const string &n)
 841 {
 842         BinaryPackage *pkg=new BinaryPackage(bld, n);
 843         load_sub(*pkg);
 844         bld.packages.insert(PackageMap::value_type(n, pkg));
 845 }
 846
 847 void Builder::Loader::profile(const string &n)
 848 {
 849         StringMap prf;
 850         ProfileLoader ldr(prf);
 851         load_sub_with(ldr);
 852         bld.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
 853 }
 854
 855 void Builder::Loader::package(const string &n)
 856 {
 857         SourcePackage *pkg=new SourcePackage(bld, n, src);
 858         if(!bld.main_pkg)
 859                 bld.main_pkg=pkg;
 860
 861         load_sub(*pkg);
 862         bld.packages.insert(PackageMap::value_type(n, pkg));
 863 }
 864
 865
 866 Builder::ProfileLoader::ProfileLoader(StringMap &p):
 867         profile(p)
 868 {
 869         add("option", &ProfileLoader::option);
 870 }
 871
 872 void Builder::ProfileLoader::option(const string &o, const string &v)
 873 {
 874         profile.insert(StringMap::value_type(o, v));
 875 }