source/builder.cpp

   1 #include <set>
   2 #include <msp/core/getopt.h>
   3 #include <msp/datafile/parser.h>
   4 #include <msp/fs/dir.h>
   5 #include <msp/fs/stat.h>
   6 #include <msp/fs/utils.h>
   7 #include <msp/io/buffered.h>
   8 #include <msp/io/file.h>
   9 #include <msp/io/print.h>
  10 #include <msp/strings/format.h>
  11 #include <msp/strings/regex.h>
  12 #include <msp/strings/utils.h>
  13 #include <msp/time/units.h>
  14 #include <msp/time/utils.h>
  15 #include "analyzer.h"
  16 #include "binarypackage.h"
  17 #include "builder.h"
  18 #include "copy.h"
  19 #include "gnuarchiver.h"
  20 #include "gnuccompiler.h"
  21 #include "gnucxxcompiler.h"
  22 #include "gnulinker.h"
  23 #include "installedfile.h"
  24 #include "package.h"
  25 #include "pkgconfiggenerator.h"
  26 #include "sharedlibrary.h"
  27 #include "sourcepackage.h"
  28 #include "tar.h"
  29 #include "task.h"
  30 #include "virtualtarget.h"
  31
  32 using namespace std;
  33 using namespace Msp;
  34
  35 Builder::Builder(int argc, char **argv):
  36         package_manager(*this),
  37         main_pkg(0),
  38         native_arch(*this, string()),
  39         build_type(0),
  40         vfs(*this),
  41         analyzer(0),
  42         build(false),
  43         clean(0),
  44         dry_run(false),
  45         help(false),
  46         show_progress(false),
  47         build_file("Build"),
  48         jobs(1),
  49         conf_all(false),
  50         conf_only(false),
  51         build_all(false),
  52         create_makefile(false),
  53         tempdir("temp")
  54 {
  55         string analyze_mode;
  56         string work_dir;
  57         bool full_paths = false;
  58         unsigned max_depth = 4;
  59         string prfx;
  60         string temp_str;
  61         string arch;
  62         bool no_externals = false;
  63         unsigned verbose = 1;
  64         bool silent = false;
  65         list<string> log_channels;
  66         string build_type_name;
  67
  68         GetOpt getopt;
  69         getopt.add_option('a', "analyze",    analyze_mode,  GetOpt::REQUIRED_ARG).set_help("Perform dependency analysis.", "MODE");
  70         getopt.add_option('b', "build",      build,         GetOpt::NO_ARG).set_help("Perform build even if also doing something else.");
  71         getopt.add_option('c', "clean",      clean,         GetOpt::NO_ARG).set_help("Clean buildable targets.");
  72         getopt.add_option('f', "file",       build_file,    GetOpt::REQUIRED_ARG).set_help("Read build instructions from FILE.", "FILE");
  73         getopt.add_option('h', "help",       help,          GetOpt::NO_ARG).set_help("Print this message.");
  74         getopt.add_option('j', "jobs",       jobs,          GetOpt::REQUIRED_ARG).set_help("Run up to NUM tasks in parallel.", "NUM");
  75         getopt.add_option('l', "log",        log_channels,  GetOpt::REQUIRED_ARG).set_help("Enable listed log channels.", "LIST");
  76         getopt.add_option('n', "dry-run",    dry_run,       GetOpt::NO_ARG).set_help("Show what would be done without actually doing it.");
  77         getopt.add_option('s', "silent",     silent,        GetOpt::NO_ARG).set_help("Don't print any messages other than errors.");
  78         getopt.add_option('t', "build-type", build_type_name, GetOpt::REQUIRED_ARG).set_help("Set build type.", "TYPE");
  79         getopt.add_option('v', "verbose",    verbose,       GetOpt::NO_ARG).set_help("Print more information about what's going on.");
  80         getopt.add_option('x', "no-externals",  no_externals, GetOpt::NO_ARG).set_help("Do not load external source packages.");
  81         getopt.add_option('A', "conf-all",   conf_all,      GetOpt::NO_ARG).set_help("Apply configuration to all packages.");
  82         getopt.add_option('B', "build-all",  build_all,     GetOpt::NO_ARG).set_help("Build all targets unconditionally.");
  83         getopt.add_option('C', "chdir",      work_dir,      GetOpt::REQUIRED_ARG).set_help("Change to DIR before doing anything else.", "DIR");
  84         getopt.add_option('P', "progress",   show_progress, GetOpt::NO_ARG).set_help("Display progress while building.");
  85         getopt.add_option('W', "what-if",    what_if,       GetOpt::REQUIRED_ARG).set_help("Pretend that FILE has changed.", "FILE");
  86         getopt.add_option(     "arch",       arch,          GetOpt::REQUIRED_ARG).set_help("Build for architecture ARCH.", "ARCH");
  87         getopt.add_option(     "conf-only",  conf_only,     GetOpt::NO_ARG).set_help("Stop after configuring packages.");
  88         getopt.add_option(     "full-paths", full_paths,    GetOpt::NO_ARG).set_help("Output full paths in analysis.");
  89         getopt.add_option(     "max-depth",  max_depth,     GetOpt::REQUIRED_ARG).set_help("Show up to NUM levels in analysis.", "NUM");
  90         getopt.add_option(     "prefix",     prfx,          GetOpt::REQUIRED_ARG).set_help("Install things to DIR.", "DIR");
  91         getopt.add_option(     "tempdir",    temp_str,      GetOpt::REQUIRED_ARG).set_help("Store temporary files in DIR.", "DIR");
  92         usagemsg = getopt.generate_usage(argv[0])+" [<target> ...]";
  93         helpmsg = getopt.generate_help();
  94         getopt(argc, argv);
  95
  96         if(silent)
  97                 --verbose;
  98         if(verbose>=1)
  99         {
 100                 logger.enable_channel("summary");
 101                 logger.enable_channel("tasks");
 102         }
 103         if(verbose>=2)
 104         {
 105                 logger.enable_channel("environment");
 106                 logger.enable_channel("packages");
 107                 logger.enable_channel("commands");
 108         }
 109         if(verbose>=3)
 110         {
 111                 logger.enable_channel("files");
 112                 logger.enable_channel("auxcommands");
 113         }
 114         for(list<string>::const_iterator i=log_channels.begin(); i!=log_channels.end(); ++i)
 115         {
 116                 vector<string> parts = split(*i, ',');
 117                 for(vector<string>::const_iterator j=parts.begin(); j!=parts.end(); ++j)
 118                         logger.enable_channel(*j);
 119         }
 120
 121         if(!analyze_mode.empty())
 122         {
 123                 analyzer = new Analyzer(*this);
 124
 125                 if(analyze_mode=="deps")
 126                         analyzer->set_mode(Analyzer::DEPS);
 127                 else if(analyze_mode=="alldeps")
 128                         analyzer->set_mode(Analyzer::ALLDEPS);
 129                 else if(analyze_mode=="rebuild")
 130                         analyzer->set_mode(Analyzer::REBUILD);
 131                 else if(analyze_mode=="rdeps")
 132                         analyzer->set_mode(Analyzer::RDEPS);
 133                 else
 134                         throw usage_error("Invalid analyze mode");
 135
 136                 analyzer->set_max_depth(max_depth);
 137                 analyzer->set_full_paths(full_paths);
 138         }
 139         else if(!clean && !create_makefile)
 140                 build = true;
 141
 142         const vector<string> &args = getopt.get_args();
 143         for(vector<string>::const_iterator i=args.begin(); i!=args.end(); ++i)
 144         {
 145                 string::size_type equal = i->find('=');
 146                 if(equal!=string::npos)
 147                         cmdline_options.insert(Config::InputOptions::value_type(i->substr(0, equal), i->substr(equal+1)));
 148                 else
 149                         cmdline_targets.push_back(*i);
 150         }
 151
 152         if(cmdline_targets.empty())
 153                 cmdline_targets.push_back("default");
 154
 155         if(!work_dir.empty())
 156                 FS::chdir(work_dir);
 157
 158         cwd = FS::getcwd();
 159
 160         package_manager.append_package_path(cwd);
 161         package_manager.append_package_path(cwd/"..");
 162         package_manager.append_binary_package_path(FS::get_sys_data_dir(argv[0], "builder"));
 163
 164         package_manager.set_no_externals(no_externals);
 165
 166         if(arch.empty())
 167                 current_arch = &native_arch;
 168         else
 169                 current_arch = new Architecture(*this, arch);
 170
 171         list<FS::Path> start_files;
 172         start_files.push_back(FS::get_sys_data_dir(argv[0], "builder")/"builderrc");
 173         start_files.push_back(FS::get_user_data_dir("builder")/"rc");
 174         for(list<FS::Path>::const_iterator i=start_files.begin(); i!=start_files.end(); ++i)
 175                 if(FS::exists(*i))
 176                         load_build_file(*i);
 177
 178         if(prfx.empty())
 179         {
 180                 if(current_arch->is_native())
 181                         prefix = (FS::get_home_dir()/"local").str();
 182                 else
 183                         prefix = (FS::get_home_dir()/"local"/current_arch->get_name()).str();
 184         }
 185         else
 186                 prefix = cwd/prfx;
 187
 188         if(!temp_str.empty())
 189                 tempdir = temp_str;
 190
 191         if(!build_type_name.empty())
 192         {
 193                 BuildTypeMap::iterator i = build_types.find(build_type_name);
 194                 if(i==build_types.end())
 195                         throw usage_error("Unknown build type");
 196                 build_type = &i->second;
 197         }
 198
 199         toolchain.add_tool(new GnuCCompiler(*this, *current_arch));
 200         toolchain.add_tool(new GnuCxxCompiler(*this, *current_arch));
 201         toolchain.add_tool(new GnuLinker(*this, *current_arch));
 202         toolchain.add_tool(new GnuArchiver(*this, *current_arch));
 203         toolchain.add_tool(new Copy(*this));
 204         toolchain.add_tool(new Tar(*this));
 205         toolchain.add_tool(new PkgConfigGenerator(*this));
 206 }
 207
 208 Builder::~Builder()
 209 {
 210         for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 211                 delete i->second;
 212         delete analyzer;
 213 }
 214
 215 int Builder::main()
 216 {
 217         FS::Path main_file = cwd/build_file;
 218         if(!FS::exists(main_file))
 219         {
 220                 if(help)
 221                 {
 222                         usage(0, "builder", false);
 223                         return 0;
 224                 }
 225                 else
 226                 {
 227                         IO::print(IO::cerr, "The file %s does not exist.\n", main_file);
 228                         return 1;
 229                 }
 230         }
 231
 232         load_build_file(main_file);
 233
 234         if(help)
 235         {
 236                 usage(0, "builder", false);
 237                 IO::print("\n");
 238                 package_help();
 239                 return 0;
 240         }
 241
 242         if(!prepare_build())
 243                 return 1;
 244
 245         if(conf_only)
 246                 return 0;
 247
 248         logger.log("environment", format("Building on %s, for %s%s", native_arch.get_name(),
 249                 current_arch->get_name(), (current_arch->is_native() ? " (native)" : "")));
 250         logger.log("environment", format("Prefix is %s", prefix));
 251         if(tempdir.is_absolute())
 252                 logger.log("environment", format("Temporary directory is %s", tempdir));
 253         else
 254                 logger.log("environment", format("Using per-package temporary directory %s", tempdir));
 255         if(build_type)
 256                 logger.log("environment", format("Build type is %s", build_type->get_name()));
 257
 258         const PackageManager::PackageMap &packages = package_manager.get_packages();
 259         list<string> package_details;
 260         for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 261         {
 262                 if(!i->second->is_prepared())
 263                         continue;
 264
 265                 string line = i->second->get_name();
 266                 if(dynamic_cast<SourcePackage *>(i->second))
 267                 {
 268                         line += '*';
 269
 270                         unsigned count = 0;
 271                         unsigned to_be_built = 0;
 272                         for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
 273                                 if(j->second->get_package()==i->second)
 274                                 {
 275                                         ++count;
 276                                         if(j->second->needs_rebuild())
 277                                                 ++to_be_built;
 278                                 }
 279                         if(count)
 280                         {
 281                                 line += format(" (%d targets", count);
 282                                 if(to_be_built)
 283                                         line += format(", %d to be built", to_be_built);
 284                                 line += ')';
 285                         }
 286                 }
 287
 288                 package_details.push_back(line);
 289         }
 290
 291         logger.log("summary", format("%d active packages, %d targets", package_details.size(), targets.size()));
 292         for(list<string>::const_iterator i=package_details.begin(); i!=package_details.end(); ++i)
 293                 logger.log("packages", *i);
 294
 295         if(analyzer)
 296                 analyzer->analyze();
 297
 298         if(!problems.empty())
 299         {
 300                 IO::print(IO::cerr, "The following problems were detected:\n");
 301                 for(ProblemList::iterator i=problems.begin(); i!=problems.end(); ++i)
 302                         IO::print(IO::cerr, "  %s: %s\n", i->package, i->descr);
 303                 if(!analyzer)
 304                         IO::print(IO::cerr, "Please fix them and try again.\n");
 305                 return 1;
 306         }
 307
 308         if(clean)
 309                 exit_code = do_clean();
 310         if(build)
 311                 exit_code = do_build();
 312
 313         return exit_code;
 314 }
 315
 316 Target *Builder::get_target(const string &n) const
 317 {
 318         TargetMap::const_iterator i = targets.find(n);
 319         if(i!=targets.end())
 320                 return i->second;
 321         return 0;
 322 }
 323
 324 void Builder::problem(const string &p, const string &d)
 325 {
 326         problems.push_back(Problem(p, d));
 327 }
 328
 329 void Builder::add_target(Target *t)
 330 {
 331         targets.insert(TargetMap::value_type(t->get_name(), t));
 332 }
 333
 334 void Builder::add_primary_target(Target &t)
 335 {
 336         get_target("world")->add_dependency(t);
 337
 338         if(t.get_package()==main_pkg && t.get_component() && t.get_component()->is_default())
 339                 get_target("default")->add_dependency(t);
 340 }
 341
 342 void Builder::usage(const char *reason, const char *argv0, bool brief)
 343 {
 344         if(reason)
 345                 IO::print(IO::cerr, "%s\n", reason);
 346
 347         if(brief)
 348                 IO::print(IO::cerr, "Usage: %s\n", usagemsg);
 349         else
 350         {
 351                 IO::print(IO::cerr, "Builder 1.0\n\n");
 352                 IO::print(IO::cerr, "Usage: %s [options] [<target> ...]\n\n", argv0);
 353                 IO::print(IO::cerr, "Options:\n");
 354                 IO::print(IO::cerr, helpmsg);
 355         }
 356 }
 357
 358 void Builder::load_build_file(const FS::Path &fn)
 359 {
 360         IO::BufferedFile in(fn.str());
 361
 362         logger.log("files", format("Reading %s", fn));
 363
 364         DataFile::Parser parser(in, fn.str());
 365         Loader loader(*this);
 366         loader.load(parser);
 367 }
 368
 369 bool Builder::prepare_build()
 370 {
 371         Target *world = new VirtualTarget(*this, "world");
 372
 373         Target *def_tgt = new VirtualTarget(*this, "default");
 374         world->add_dependency(*def_tgt);
 375
 376         Target *install = new VirtualTarget(*this, "install");
 377         world->add_dependency(*install);
 378
 379         Target *tarballs = new VirtualTarget(*this, "tarballs");
 380         world->add_dependency(*tarballs);
 381
 382         main_pkg->prepare();
 383
 384         // Make the cmdline target depend on all targets mentioned on the command line
 385         Target *cmdline = new VirtualTarget(*this, "cmdline");
 386         for(NameList::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
 387         {
 388                 Target *tgt = get_target(*i);
 389                 if(!tgt)
 390                         tgt = vfs.get_target(*i);
 391                 if(!tgt)
 392                         tgt = vfs.get_target(cwd/ *i);
 393                 if(!tgt)
 394                 {
 395                         IO::print("I don't know anything about %s\n", *i);
 396                         return false;
 397                 }
 398
 399                 cmdline->add_dependency(*tgt);
 400         }
 401
 402         cmdline->prepare();
 403
 404         // Apply what-ifs
 405         for(NameList::iterator i=what_if.begin(); i!=what_if.end(); ++i)
 406         {
 407                 FileTarget *tgt = vfs.get_target(cwd/ *i);
 408                 if(!tgt)
 409                 {
 410                         IO::print(IO::cerr, "Unknown what-if target %s\n", *i);
 411                         return false;
 412                 }
 413                 tgt->touch();
 414         }
 415
 416         if(build_all)
 417         {
 418                 for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 419                         if(i->second->is_buildable() && !i->second->needs_rebuild())
 420                                 i->second->force_rebuild();
 421         }
 422
 423         if(!dry_run)
 424         {
 425                 const PackageManager::PackageMap &packages = package_manager.get_packages();
 426                 for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 427                         i->second->save_caches();
 428         }
 429
 430         return true;
 431 }
 432
 433 int Builder::do_build()
 434 {
 435         Target *cmdline = get_target("cmdline");
 436
 437         unsigned total = 0;
 438         for(map<string, Target *>::const_iterator i=targets.begin(); i!=targets.end(); ++i)
 439                 if(i->second->is_buildable() && i->second->needs_rebuild())
 440                         ++total;
 441
 442         if(!total)
 443         {
 444                 logger.log("summary", "Already up to date");
 445                 return 0;
 446         }
 447         logger.log("summary", format("Will build %d target%s", total, (total!=1 ? "s" : "")));
 448
 449         vector<Task *> tasks;
 450
 451         unsigned count = 0;
 452
 453         bool fail = false;
 454         bool finish = false;
 455         bool starved = false;
 456
 457         while(!finish)
 458         {
 459                 if(tasks.size()<jobs && !fail && !starved)
 460                 {
 461                         Target *tgt = cmdline->get_buildable_target();
 462                         if(tgt)
 463                         {
 464                                 if(tgt->get_tool())
 465                                         logger.log("tasks", format("%-4s  %s", tgt->get_tool()->get_tag(), tgt->get_name()));
 466                                 Task *task = tgt->build();
 467                                 if(task)
 468                                 {
 469                                         logger.log("commands", format("%s", task->get_command()));
 470                                         if(dry_run)
 471                                         {
 472                                                 task->signal_finished.emit(true);
 473                                                 delete task;
 474                                         }
 475                                         else
 476                                         {
 477                                                 task->start();
 478                                                 tasks.push_back(task);
 479                                         }
 480                                 }
 481
 482                                 if(show_progress)
 483                                         IO::print("%d of %d target%s built\033[1G", count, total, (total!=1 ? "s" : ""));
 484                         }
 485                         else if(tasks.empty())
 486                                 finish = true;
 487                         else
 488                                 starved = true;
 489                 }
 490                 else
 491                         Time::sleep(10*Time::msec);
 492
 493                 for(unsigned i=0; i<tasks.size();)
 494                 {
 495                         Task::Status status;
 496                         if(jobs==1 || (tasks.size()==1 && starved))
 497                                 status = tasks[i]->wait();
 498                         else
 499                                 status = tasks[i]->check();
 500
 501                         if(status!=Task::RUNNING)
 502                         {
 503                                 ++count;
 504
 505                                 delete tasks[i];
 506                                 tasks.erase(tasks.begin()+i);
 507                                 if(status==Task::ERROR)
 508                                         fail = true;
 509                                 if(tasks.empty() && fail)
 510                                         finish = true;
 511                                 starved = false;
 512                         }
 513                         else
 514                                 ++i;
 515                 }
 516         }
 517
 518         if(show_progress)
 519                 IO::print("\033[K");
 520         if(fail)
 521                 logger.log("summary", "Build failed");
 522         else if(show_progress)
 523                 logger.log("summary", "Build complete");
 524
 525         if(!dry_run)
 526         {
 527                 const PackageManager::PackageMap &packages = package_manager.get_packages();
 528                 for(PackageManager::PackageMap::const_iterator i=packages.begin(); i!=packages.end(); ++i)
 529                         i->second->save_caches();
 530         }
 531
 532         return fail;
 533 }
 534
 535 int Builder::do_clean()
 536 {
 537         // Cleaning doesn't care about ordering, so a simpler method can be used
 538
 539         set<Target *> clean_tgts;
 540         list<Target *> queue;
 541         queue.push_back(get_target("cmdline"));
 542
 543         while(!queue.empty())
 544         {
 545                 Target *tgt = queue.front();
 546                 queue.erase(queue.begin());
 547
 548                 if(tgt->is_buildable() && (tgt->get_package()==main_pkg || clean>=2))
 549                         clean_tgts.insert(tgt);
 550
 551                 const Target::Dependencies &deps = tgt->get_dependencies();
 552                 for(list<Target *>::const_iterator i=deps.begin(); i!=deps.end(); ++i)
 553                         if(!clean_tgts.count(*i))
 554                                 queue.push_back(*i);
 555         }
 556
 557         for(set<Target *>::iterator i=clean_tgts.begin(); i!=clean_tgts.end(); ++i)
 558         {
 559                 logger.log("tasks", format("RM    %s", (*i)->get_name()));
 560                 if(!dry_run)
 561                         (*i)->clean();
 562         }
 563
 564         return 0;
 565 }
 566
 567 void Builder::package_help()
 568 {
 569         const Config &config = main_pkg->get_config();
 570         const Config::OptionMap &options = config.get_options();
 571
 572         IO::print("Required packages:\n  ");
 573         const Package::Requirements &requires = main_pkg->get_required_packages();
 574         for(Package::Requirements::const_iterator i=requires.begin(); i!=requires.end(); ++i)
 575         {
 576                 if(i!=requires.begin())
 577                         IO::print(", ");
 578                 IO::print((*i)->get_name());
 579         }
 580         IO::print("\n\nPackage configuration:\n");
 581         for(Config::OptionMap::const_iterator i=options.begin(); i!=options.end(); ++i)
 582         {
 583                 const Config::Option &opt = i->second;
 584                 IO::print("  %s: %s (%s)", opt.name, opt.description, opt.value);
 585                 if(opt.value!=opt.default_value)
 586                         IO::print(" [%s]", opt.default_value);
 587                 IO::print("\n");
 588         }
 589 }
 590
 591 string Builder::usagemsg;
 592 string Builder::helpmsg;
 593
 594
 595 Builder::Loader::Loader(Builder &b):
 596         DataFile::ObjectLoader<Builder>(b)
 597 {
 598         add("architecture", &Loader::architecture);
 599         add("binary_package", &Loader::binpkg);
 600         add("build_type", &Loader::build_type);
 601         add("profile", &Loader::profile);
 602         add("package", &Loader::package);
 603 }
 604
 605 void Builder::Loader::architecture(const string &n)
 606 {
 607         if(obj.current_arch->match_name(n))
 608                 load_sub(*obj.current_arch);
 609 }
 610
 611 void Builder::Loader::binpkg(const string &n)
 612 {
 613         BinaryPackage *pkg = new BinaryPackage(obj, n);
 614         load_sub(*pkg);
 615 }
 616
 617 void Builder::Loader::build_type(const string &n)
 618 {
 619         BuildType btype(n);
 620         load_sub(btype);
 621         BuildTypeMap::iterator i = obj.build_types.insert(BuildTypeMap::value_type(n, btype)).first;
 622         if(!obj.build_type)
 623                 obj.build_type = &i->second;
 624 }
 625
 626 void Builder::Loader::profile(const string &)
 627 {
 628         IO::print("Profiles are deprecated\n");
 629 }
 630
 631 void Builder::Loader::package(const string &n)
 632 {
 633         SourcePackage *pkg = new SourcePackage(obj, n, get_source());
 634         if(!obj.main_pkg)
 635                 obj.main_pkg = pkg;
 636
 637         if(obj.conf_all || pkg==obj.main_pkg)
 638                 load_sub(*pkg, obj.cmdline_options);
 639         else
 640                 load_sub(*pkg);
 641
 642         if(obj.build_type)
 643                 pkg->set_build_type(*obj.build_type);
 644 }