source/builder.cpp

   1 /* $Id$
   2
   3 This file is part of builder
   4 Copyright © 2006-2010  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <set>
   9 #include <cstdlib>
  10 #include <msp/core/getopt.h>
  11 #include <msp/datafile/parser.h>
  12 #include <msp/fs/dir.h>
  13 #include <msp/fs/stat.h>
  14 #include <msp/fs/utils.h>
  15 #include <msp/io/buffered.h>
  16 #include <msp/io/file.h>
  17 #include <msp/io/print.h>
  18 #include <msp/strings/format.h>
  19 #include <msp/strings/regex.h>
  20 #include <msp/strings/utils.h>
  21 #include <msp/time/units.h>
  22 #include <msp/time/utils.h>
  23 #include "action.h"
  24 #include "analyzer.h"
  25 #include "binarypackage.h"
  26 #include "builder.h"
  27 #include "header.h"
  28 #include "install.h"
  29 #include "misc.h"
  30 #include "package.h"
  31 #include "pkgconfig.h"
  32 #include "sharedlibrary.h"
  33 #include "sourcepackage.h"
  34 #include "systemlibrary.h"
  35 #include "unlink.h"
  36 #include "virtualtarget.h"
  37
  38 using namespace std;
  39 using namespace Msp;
  40
  41 namespace {
  42
  43 void update_hash(string &hash, const string &value)
  44 {
  45         for(unsigned i=0; i<value.size(); ++i)
  46                 hash[i%hash.size()] ^= value[i];
  47 }
  48
  49 }
  50
  51
  52 Builder::Builder(int argc, char **argv):
  53         main_pkg(0),
  54         native_arch(*this, string()),
  55         analyzer(0),
  56         build(false),
  57         clean(0),
  58         dry_run(false),
  59         help(false),
  60         verbose(1),
  61         show_progress(false),
  62         build_file("Build"),
  63         jobs(1),
  64         conf_all(false),
  65         conf_only(false),
  66         build_all(false),
  67         create_makefile(false)
  68 {
  69         string analyze_mode;
  70         string work_dir;
  71         bool full_paths = false;
  72         unsigned max_depth = 5;
  73         StringList cmdline_warn;
  74         string prfx;
  75         string arch;
  76
  77         GetOpt getopt;
  78         getopt.add_option('a', "analyze",    analyze_mode,  GetOpt::REQUIRED_ARG).set_help("Perform analysis.  MODE can be deps, alldeps or rebuild.", "MODE");
  79         getopt.add_option('b', "build",      build,         GetOpt::NO_ARG).set_help("Perform build even if doing analysis.");
  80         getopt.add_option('c', "clean",      clean,         GetOpt::NO_ARG).set_help("Clean buildable targets.");
  81         getopt.add_option('f', "file",       build_file,    GetOpt::REQUIRED_ARG).set_help("Read info from FILE instead of Build.", "FILE");
  82         getopt.add_option('h', "help",       help,          GetOpt::NO_ARG).set_help("Print this message.");
  83         getopt.add_option('j', "jobs",       jobs,          GetOpt::REQUIRED_ARG).set_help("Run NUM commands at once, whenever possible.", "NUM");
  84         getopt.add_option('n', "dry-run",    dry_run,       GetOpt::NO_ARG).set_help("Don't actually do anything, only show what would be done.");
  85         getopt.add_option('v', "verbose",    verbose,       GetOpt::NO_ARG).set_help("Print more information about what's going on.");
  86         getopt.add_option('x', "no-externals",  no_externals, GetOpt::NO_ARG).set_help("Do not load external source packages.");
  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 usage_error("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                 string::size_type 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         native_arch.set_tool("CC",  "gcc");
 142         native_arch.set_tool("CXX", "g++");
 143         native_arch.set_tool("LD",  "gcc");
 144         native_arch.set_tool("LXX", "g++");
 145         native_arch.set_tool("AR",  "ar");
 146
 147         load_build_file((FS::get_sys_data_dir(argv[0], "builder")/"builderrc").str());
 148         load_build_file((FS::get_user_data_dir("builder")/"rc").str());
 149
 150         if(arch.empty())
 151                 current_arch = &native_arch;
 152         else
 153                 current_arch = new Architecture(*this, arch);
 154
 155         if(!current_arch->is_native())
 156         {
 157                 for(StringMap::const_iterator i=cross_prefixes.begin(); i!=cross_prefixes.end(); ++i)
 158                         if(current_arch->match_name(i->first))
 159                         {
 160                                 current_arch->set_cross_prefix(i->second);
 161                                 break;
 162                         }
 163         }
 164
 165         if(prfx.empty())
 166         {
 167                 if(current_arch->is_native())
 168                         prefix = (FS::get_home_dir()/"local").str();
 169                 else
 170                         prefix = (FS::get_home_dir()/"local"/current_arch->get_name()).str();
 171         }
 172         else
 173                 prefix = FS::getcwd()/prfx;
 174
 175         warnings.push_back("all");
 176         warnings.push_back("extra");
 177         warnings.push_back("shadow");
 178         warnings.push_back("pointer-arith");
 179         warnings.push_back("error");
 180         for(StringList::iterator i=cmdline_warn.begin(); i!=cmdline_warn.end(); ++i)
 181         {
 182                 vector<string> warns = split(*i, ',');
 183                 warnings.insert(warnings.end(), warns.begin(), warns.end());
 184         }
 185
 186         pkg_path.push_back(cwd/".");
 187         pkg_path.push_back(cwd/"..");
 188 }
 189
 190 Builder::~Builder()
 191 {
 192         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 193                 delete i->second;
 194         for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 195                 delete i->second;
 196         delete analyzer;
 197 }
 198
 199 int Builder::main()
 200 {
 201         if(prefix.str()!="/usr")
 202         {
 203                 FS::Path pcdir = prefix/"lib"/"pkgconfig";
 204                 if(const char *pcp = getenv("PKG_CONFIG_PATH"))
 205                 {
 206                         vector<string> path = split(pcp, ':');
 207                         bool found = false;
 208                         for(vector<string>::const_iterator i=path.begin(); (!found && i!=path.end()); ++i)
 209                                 found = (*i==pcdir.str());
 210                         if(!found)
 211                         {
 212                                 path.push_back(pcdir.str());
 213                                 setenv("PKG_CONFIG_PATH", join(path.begin(), path.end(), ":").c_str(), true);
 214                         }
 215                 }
 216                 else
 217                         setenv("PKG_CONFIG_PATH", pcdir.str().c_str(), true);
 218         }
 219
 220         if(load_build_file(cwd/build_file))
 221         {
 222                 if(help)
 223                 {
 224                         usage(0, "builder", false);
 225                         return 0;
 226                 }
 227                 else
 228                 {
 229                         IO::print(IO::cerr, "No build info here.\n");
 230                         return 1;
 231                 }
 232         }
 233
 234         main_pkg->configure(cmdline_options, conf_all?2:1);
 235
 236         if(help)
 237         {
 238                 usage(0, "builder", false);
 239                 IO::print("\n");
 240                 package_help();
 241                 return 0;
 242         }
 243
 244         if(conf_only)
 245                 return 0;
 246
 247         if(create_targets())
 248                 return 1;
 249
 250         if(verbose>=2)
 251         {
 252                 IO::print("Building on %s, for %s%s\n", native_arch.get_name(),
 253                         current_arch->get_name(), (current_arch->is_native() ? " (native)" : ""));
 254                 IO::print("Prefix is %s\n", prefix);
 255         }
 256
 257         if(verbose>=1)
 258         {
 259                 unsigned n_packages = 0;
 260                 for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 261                         if(i->second && i->second->is_configured())
 262                                 ++n_packages;
 263                 IO::print("%d active packages, %d targets\n", n_packages, targets.size());
 264         }
 265
 266         if(verbose>=2)
 267         {
 268                 for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 269                 {
 270                         if(!i->second->is_configured())
 271                                 continue;
 272
 273                         IO::print(" %s", i->second->get_name());
 274                         if(dynamic_cast<SourcePackage *>(i->second))
 275                                 IO::print("*");
 276                         unsigned count = 0;
 277                         unsigned to_be_built = 0;
 278                         for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
 279                                 if(j->second->get_package()==i->second)
 280                                 {
 281                                         ++count;
 282                                         if(j->second->get_rebuild())
 283                                                 ++to_be_built;
 284                                 }
 285                         if(count)
 286                         {
 287                                 IO::print(" (%d targets", count);
 288                                 if(to_be_built)
 289                                         IO::print(", %d to be built", to_be_built);
 290                                 IO::print(")");
 291                         }
 292                         IO::print("\n");
 293                 }
 294         }
 295
 296         if(analyzer)
 297                 analyzer->analyze();
 298
 299         if(!problems.empty())
 300         {
 301                 IO::print(IO::cerr, "The following problems were detected:\n");
 302                 for(ProblemList::iterator i=problems.begin(); i!=problems.end(); ++i)
 303                         IO::print(IO::cerr, "  %s: %s\n", i->package, i->descr);
 304                 if(!analyzer)
 305                         IO::print(IO::cerr, "Please fix them and try again.\n");
 306                 return 1;
 307         }
 308
 309         if(clean)
 310                 exit_code = do_clean();
 311         else if(build)
 312                 exit_code = do_build();
 313
 314         return exit_code;
 315 }
 316
 317 string Builder::run_pkgconfig(const string &pkg, const string &what)
 318 {
 319         list<string> argv;
 320         argv.push_back("pkg-config");
 321         if(what=="cflags" || what=="libs")
 322                 argv.push_back("--"+what);
 323         else if(what=="flags")
 324         {
 325                 argv.push_back("--cflags");
 326                 argv.push_back("--libs");
 327         }
 328         else
 329                 argv.push_back("--variable="+what);
 330         argv.push_back(pkg);
 331
 332         if(verbose>=4)
 333                 IO::print("Running %s\n", join(argv.begin(), argv.end()));
 334
 335         int status;
 336         string res = run_command(argv, &status);
 337         if(status)
 338                 throw runtime_error(format("pkg-config for package %s failed", pkg));
 339
 340         return res;
 341 }
 342
 343 Package *Builder::get_package(const string &name)
 344 {
 345         PackageMap::iterator i = packages.find(format("%s/%s", name, current_arch->get_system()));
 346         if(i==packages.end())
 347                 i = packages.find(name);
 348         if(i!=packages.end())
 349                 return i->second;
 350
 351         if(!no_externals)
 352         {
 353                 FS::Path path = get_package_location(name);
 354                 if(!path.empty() && !load_build_file(path/"Build"))
 355                 {
 356                         i = packages.find(name);
 357                         if(i!=packages.end())
 358                                 return i->second;
 359                 }
 360         }
 361
 362         Package *pkg = 0;
 363         try
 364         {
 365                 // Package source not found - create a binary package
 366                 pkg = BinaryPackage::from_pkgconfig(*this, name);
 367         }
 368         catch(...)
 369         {
 370                 problem(name, "not found");
 371         }
 372
 373         packages.insert(PackageMap::value_type(name, pkg));
 374
 375         return pkg;
 376 }
 377
 378 Target *Builder::get_target(const string &n) const
 379 {
 380         // XXX Used for getting targets by path.  get_target(const FS::Path &)?
 381         TargetMap::const_iterator i = targets.find(n);
 382         if(i!=targets.end())
 383                 return i->second;
 384         return 0;
 385 }
 386
 387 Target *Builder::get_header(const string &include, const FS::Path &from, const list<string> &path)
 388 {
 389         string hash(8, 0);
 390         if(include[0]=='\"')
 391                 update_hash(hash, from.str());
 392         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 393                 update_hash(hash, *i);
 394
 395         string id = hash+include;
 396         TargetMap::iterator i = includes.find(id);
 397         if(i!=includes.end())
 398                 return i->second;
 399
 400         static string cxx_ver;
 401         if(cxx_ver.empty())
 402         {
 403                 StringList argv;
 404                 argv.push_back(current_arch->get_tool("CXX"));
 405                 argv.push_back("--version");
 406                 if(RegMatch m = Regex("[0-9]\\.[0-9.]+").match(run_command(argv)))
 407                 {
 408                         cxx_ver = m[0].str;
 409                         while(!cxx_ver.empty() && !FS::is_dir(FS::Path("/usr/include/c++")/cxx_ver))
 410                         {
 411                                 string::size_type dot = cxx_ver.rfind('.');
 412                                 if(dot==string::npos)
 413                                         break;
 414                                 cxx_ver.erase(dot);
 415                         }
 416                         if(verbose>=5)
 417                                 IO::print("C++ version is %s\n", cxx_ver);
 418                 }
 419                 else
 420                         cxx_ver = "-";
 421         }
 422
 423         string fn = include.substr(1);
 424         if(verbose>=5)
 425                 IO::print("Looking for include %s from %s with path %s\n", fn, from, join(path.begin(), path.end()));
 426
 427         StringList syspath;
 428         if(current_arch->is_native())
 429                 syspath.push_back("/usr/include");
 430         else
 431                 syspath.push_back("/usr/"+current_arch->get_cross_prefix()+"/include");
 432         if(cxx_ver!="-")
 433                 syspath.push_back((FS::Path("/usr/include/c++/")/cxx_ver).str());
 434
 435         Target *tgt = 0;
 436         if(include[0]=='\"')
 437                 tgt = get_header(FS::Path(from)/fn);
 438         for(list<string>::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
 439                 tgt = get_header(cwd/ *j/fn);
 440         for(list<string>::const_iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
 441                 tgt = get_header(FS::Path(*j)/fn);
 442
 443         includes.insert(TargetMap::value_type(id, tgt));
 444
 445         return tgt;
 446 }
 447
 448 Target *Builder::get_library(const string &lib, const list<string> &path, LibMode mode)
 449 {
 450         string hash(8, 0);
 451         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 452                 update_hash(hash, *i);
 453
 454         string id = hash+string(1, mode)+lib;
 455         TargetMap::iterator i = libraries.find(id);
 456         if(i!=libraries.end())
 457                 return i->second;
 458
 459         StringList syspath;
 460         if(current_arch->is_native())
 461         {
 462                 syspath.push_back("/lib");
 463                 syspath.push_back("/usr/lib");
 464         }
 465         else
 466                 syspath.push_back("/usr/"+current_arch->get_cross_prefix()+"/lib");
 467
 468         if(verbose>=5)
 469                 IO::print("Looking for library %s with path %s\n", lib, join(path.begin(), path.end()));
 470
 471         Target *tgt = 0;
 472         for(StringList::const_iterator j=path.begin(); (!tgt && j!=path.end()); ++j)
 473                 tgt = get_library(lib, cwd/ *j, mode);
 474         for(StringList::iterator j=syspath.begin(); (!tgt && j!=syspath.end()); ++j)
 475                 tgt = get_library(lib, *j, mode);
 476
 477         libraries.insert(TargetMap::value_type(id, tgt));
 478
 479         return tgt;
 480 }
 481
 482 void Builder::apply_profile_template(Config &config, const string &pt) const
 483 {
 484         vector<string> parts = split(pt, '-');
 485
 486         for(vector<string>::iterator i=parts.begin(); i!=parts.end(); ++i)
 487         {
 488                 ProfileTemplateMap::const_iterator j = profile_tmpl.find(*i);
 489                 if(j==profile_tmpl.end())
 490                         continue;
 491
 492                 config.update(j->second);
 493         }
 494 }
 495
 496 void Builder::problem(const string &p, const string &d)
 497 {
 498         problems.push_back(Problem(p, d));
 499 }
 500
 501 void Builder::add_target(FileTarget *t)
 502 {
 503         targets.insert(TargetMap::value_type(t->get_path().str(), t));
 504         new_tgts.push_back(t);
 505 }
 506
 507 void Builder::add_target(VirtualTarget *t)
 508 {
 509         targets.insert(TargetMap::value_type(t->get_name(), t));
 510         new_tgts.push_back(t);
 511 }
 512
 513 void Builder::usage(const char *reason, const char *argv0, bool brief)
 514 {
 515         if(reason)
 516                 IO::print(IO::cerr, "%s\n", reason);
 517
 518         if(brief)
 519                 IO::print(IO::cerr, "Usage: %s\n", usagemsg);
 520         else
 521         {
 522                 IO::print(IO::cerr, "Builder 1.0\n\n");
 523                 IO::print(IO::cerr, "Usage: %s [options] [<target> ...]\n\n", argv0);
 524                 IO::print(IO::cerr, "Options:\n");
 525                 IO::print(IO::cerr, helpmsg);
 526         }
 527 }
 528
 529 FS::Path Builder::get_package_location(const string &name)
 530 {
 531         if(verbose>=3)
 532                 IO::print("Looking for package %s\n", name);
 533
 534         try
 535         {
 536                 // Try to get source directory with pkgconfig
 537                 string srcdir = strip(run_pkgconfig(name, "source"));
 538                 if(!srcdir.empty())
 539                         return srcdir;
 540         }
 541         catch(...)
 542         { }
 543
 544         if(pkg_dirs.empty())
 545         {
 546                 for(list<FS::Path>::const_iterator i=pkg_path.begin(); i!=pkg_path.end(); ++i)
 547                 {
 548                         list<string> files = list_files(*i);
 549                         for(list<string>::const_iterator j=files.begin(); j!=files.end(); ++j)
 550                         {
 551                                 FS::Path full = *i / *j;
 552                                 if(FS::exists(full/"Build"))
 553                                         pkg_dirs.push_back(full);
 554                         }
 555                 }
 556                 if(verbose>=3)
 557                         IO::print("%d packages found in path\n", pkg_dirs.size());
 558         }
 559
 560         bool msp = !name.compare(0, 3, "msp");
 561         for(list<FS::Path>::const_iterator i=pkg_dirs.begin(); i!=pkg_dirs.end(); ++i)
 562         {
 563                 string base = basename(*i);
 564                 unsigned dash = base.rfind('-');
 565
 566                 if(!base.compare(0, dash, name))
 567                         return *i;
 568                 else if(msp && !base.compare(0, dash-3, name, 3, string::npos))
 569                         return *i;
 570         }
 571
 572         return FS::Path();
 573 }
 574
 575 int Builder::load_build_file(const FS::Path &fn)
 576 {
 577         try
 578         {
 579                 IO::BufferedFile in(fn.str());
 580
 581                 if(verbose>=3)
 582                         IO::print("Reading %s\n", fn);
 583
 584                 DataFile::Parser parser(in, fn.str());
 585                 Loader loader(*this, fn.subpath(0, fn.size()-1));
 586                 loader.load(parser);
 587         }
 588         catch(const IO::file_not_found &)
 589         {
 590                 return -1;
 591         }
 592
 593         return 0;
 594 }
 595
 596 int Builder::create_targets()
 597 {
 598         Target *world = new VirtualTarget(*this, "world");
 599
 600         Target *def_tgt = new VirtualTarget(*this, "default");
 601         world->add_depend(def_tgt);
 602
 603         Target *install = new VirtualTarget(*this, "install");
 604         world->add_depend(install);
 605
 606         Target *tarballs = new VirtualTarget(*this, "tarballs");
 607         world->add_depend(tarballs);
 608
 609         for(PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 610         {
 611                 if(!i->second || !i->second->is_configured())
 612                         continue;
 613
 614                 SourcePackage *spkg = dynamic_cast<SourcePackage *>(i->second);
 615                 if(!spkg)
 616                         continue;
 617
 618                 const ComponentList &components = spkg->get_components();
 619                 for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
 620                         j->create_targets();
 621
 622                 if(spkg->get_install_flags()&(SourcePackage::LIB|SourcePackage::INCLUDE))
 623                 {
 624                         PkgConfig *pc = new PkgConfig(*this, *spkg);
 625                         install->add_depend(new Install(*this, *spkg, *pc));
 626                 }
 627         }
 628
 629         // Find dependencies until no new targets are created
 630         while(!new_tgts.empty())
 631         {
 632                 Target *tgt = new_tgts.front();
 633                 new_tgts.erase(new_tgts.begin());
 634                 tgt->find_depends();
 635                 if(!tgt->get_depends_ready())
 636                         new_tgts.push_back(tgt);
 637         }
 638
 639         // Apply what-ifs
 640         for(StringList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
 641         {
 642                 FileTarget *tgt = dynamic_cast<FileTarget *>(get_target((cwd/ *i).str()));
 643                 if(!tgt)
 644                 {
 645                         IO::print(IO::cerr, "Unknown what-if target %s\n", *i);
 646                         return -1;
 647                 }
 648                 tgt->touch();
 649         }
 650
 651         // Make the cmdline target depend on all targets mentioned on the command line
 652         Target *cmdline = new VirtualTarget(*this, "cmdline");
 653         for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
 654         {
 655                 Target *tgt = get_target(*i);
 656                 if(!tgt)
 657                         tgt = get_target((cwd/ *i).str());
 658                 if(!tgt)
 659                 {
 660                         IO::print("I don't know anything about %s\n", *i);
 661                         return -1;
 662                 }
 663
 664                 cmdline->add_depend(tgt);
 665         }
 666
 667         cmdline->prepare();
 668
 669         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 670                 if(SourcePackage *spkg = dynamic_cast<SourcePackage *>(i->second))
 671                         spkg->get_deps_cache().save();
 672
 673         return 0;
 674 }
 675
 676 Target *Builder::get_header(const FS::Path &fn)
 677 {
 678         Target *tgt = get_target(fn.str());
 679         if(tgt) return tgt;
 680
 681         if(FS::is_reg(fn))
 682         {
 683                 tgt = new SystemHeader(*this, fn.str());
 684                 return tgt;
 685         }
 686         return 0;
 687 }
 688
 689 Target *Builder::get_library(const string &lib, const FS::Path &path, LibMode mode)
 690 {
 691         // Populate a list of candidate filenames
 692         StringList candidates;
 693
 694         if(mode!=ALL_STATIC)
 695         {
 696                 // XXX Should probably let the Architecture populate the list
 697                 if(current_arch->get_system()=="windows")
 698                 {
 699                         candidates.push_back("lib"+lib+".dll");
 700                         candidates.push_back(lib+".dll");
 701                 }
 702                 else
 703                         candidates.push_back("lib"+lib+".so");
 704         }
 705
 706         /* Static libraries are always considered, since sometimes shared versions
 707         may not be available */
 708         candidates.push_back("lib"+lib+".a");
 709         if(current_arch->get_system()=="windows")
 710                 candidates.push_back("lib"+lib+".dll.a");
 711
 712         for(StringList::iterator i=candidates.begin(); i!=candidates.end(); ++i)
 713         {
 714                 string full = (path/ *i).str();
 715                 Target *tgt = get_target(full);
 716
 717                 if(tgt)
 718                 {
 719                         Target *real_tgt = tgt->get_real_target();
 720
 721                         /* Ignore dynamic libraries from local packages unless library mode is
 722                         DYNAMIC */
 723                         if(dynamic_cast<SharedLibrary *>(real_tgt) && mode!=DYNAMIC)
 724                                 continue;
 725                         else if(tgt)
 726                                 return tgt;
 727                 }
 728                 else if(FS::is_reg(full))
 729                 {
 730                         tgt = new SystemLibrary(*this, full);
 731                         return tgt;
 732                 }
 733         }
 734
 735         return 0;
 736 }
 737
 738 int Builder::do_build()
 739 {
 740         Target *cmdline = get_target("cmdline");
 741
 742         unsigned total = 0;
 743         for(map<string, Target *>::const_iterator i=targets.begin(); i!=targets.end(); ++i)
 744                 if(i->second->is_buildable() && i->second->get_rebuild())
 745                         ++total;
 746
 747         if(!total)
 748         {
 749                 IO::print("Already up to date\n");
 750                 return 0;
 751         }
 752         if(verbose>=1)
 753                 IO::print("Will build %d target%s\n", total, (total!=1 ? "s" : ""));
 754
 755         vector<Action *> actions;
 756
 757         unsigned count = 0;
 758
 759         bool fail = false;
 760         bool finish = false;
 761
 762         while(!finish)
 763         {
 764                 if(actions.size()<jobs && !fail)
 765                 {
 766                         Target *tgt = cmdline->get_buildable_target();
 767                         if(tgt)
 768                         {
 769                                 Action *action = tgt->build();
 770                                 if(action)
 771                                         actions.push_back(action);
 772
 773                                 if(show_progress)
 774                                         IO::print("%d of %d target%s built\033[1G", count, total, (total!=1 ? "s" : ""));
 775                         }
 776                         else if(actions.empty())
 777                                 finish = true;
 778                 }
 779                 else
 780                         Time::sleep(10*Time::msec);
 781
 782                 for(unsigned i=0; i<actions.size();)
 783                 {
 784                         int status = actions[i]->check();
 785                         if(status>=0)
 786                         {
 787                                 ++count;
 788
 789                                 delete actions[i];
 790                                 actions.erase(actions.begin()+i);
 791                                 if(status>0)
 792                                         fail = true;
 793                                 if(actions.empty() && fail)
 794                                         finish = true;
 795                         }
 796                         else
 797                                 ++i;
 798                 }
 799         }
 800
 801         if(show_progress)
 802                 IO::print("\033[K");
 803         if(fail)
 804                 IO::print("Build failed\n");
 805         else if(show_progress)
 806                 IO::print("Build complete\n");
 807
 808         return fail;
 809 }
 810
 811 int Builder::do_clean()
 812 {
 813         // Cleaning doesn't care about ordering, so a simpler method can be used
 814
 815         set<Target *> clean_tgts;
 816         TargetList queue;
 817         queue.push_back(get_target("cmdline"));
 818
 819         while(!queue.empty())
 820         {
 821                 Target *tgt = queue.front();
 822                 queue.erase(queue.begin());
 823
 824                 if(tgt->is_buildable() && (tgt->get_package()==main_pkg || clean>=2))
 825                         clean_tgts.insert(tgt);
 826
 827                 const TargetList &deps = tgt->get_depends();
 828                 for(TargetList::const_iterator i=deps.begin(); i!=deps.end(); ++i)
 829                         if(!clean_tgts.count(*i))
 830                                 queue.push_back(*i);
 831         }
 832
 833         for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
 834                 if(FileTarget *ft = dynamic_cast<FileTarget *>(*i))
 835                 {
 836                         Action *action = new Unlink(*this, *ft);
 837                         while(action->check()<0) ;
 838                         delete action;
 839                 }
 840
 841         return 0;
 842 }
 843
 844 void Builder::package_help()
 845 {
 846         const Config &config = main_pkg->get_config();
 847         const Config::OptionMap &options = config.get_options();
 848
 849         IO::print("Required packages:\n  ");
 850         const PackageList &requires = main_pkg->get_requires();
 851         for(PackageList::const_iterator i=requires.begin(); i!=requires.end(); ++i)
 852         {
 853                 if(i!=requires.begin())
 854                         IO::print(", ");
 855                 IO::print((*i)->get_name());
 856         }
 857         IO::print("\n\nPackage configuration:\n");
 858         for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
 859         {
 860                 const Config::Option &opt = i->second;
 861                 IO::print("  %s: %s (%s)", opt.name, opt.descr, opt.value);
 862                 if(opt.value!=opt.defv)
 863                         IO::print(" [%s]", opt.defv);
 864                 IO::print("\n");
 865         }
 866 }
 867
 868 string Builder::usagemsg;
 869 string Builder::helpmsg;
 870
 871
 872 Builder::Loader::Loader(Builder &b, const FS::Path &s):
 873         bld(b),
 874         src(s)
 875 {
 876         add("binary_package", &Loader::binpkg);
 877         add("cross_prefix", &Loader::cross_prefix);
 878         add("profile", &Loader::profile);
 879         add("package", &Loader::package);
 880 }
 881
 882 void Builder::Loader::binpkg(const string &n)
 883 {
 884         BinaryPackage *pkg = new BinaryPackage(bld, n);
 885         load_sub(*pkg);
 886         bld.packages.insert(PackageMap::value_type(n, pkg));
 887 }
 888
 889 void Builder::Loader::cross_prefix(const string &a, const string &p)
 890 {
 891         bld.cross_prefixes[a] = p;
 892 }
 893
 894 void Builder::Loader::profile(const string &n)
 895 {
 896         StringMap prf;
 897         ProfileLoader ldr(prf);
 898         load_sub_with(ldr);
 899         bld.profile_tmpl.insert(ProfileTemplateMap::value_type(n, prf));
 900 }
 901
 902 void Builder::Loader::package(const string &n)
 903 {
 904         SourcePackage *pkg = new SourcePackage(bld, n, src);
 905         if(!bld.main_pkg)
 906                 bld.main_pkg = pkg;
 907
 908         load_sub(*pkg);
 909         bld.packages.insert(PackageMap::value_type(n, pkg));
 910 }
 911
 912
 913 Builder::ProfileLoader::ProfileLoader(StringMap &p):
 914         profile(p)
 915 {
 916         add("option", &ProfileLoader::option);
 917 }
 918
 919 void Builder::ProfileLoader::option(const string &o, const string &v)
 920 {
 921         profile.insert(StringMap::value_type(o, v));
 922 }