source/builder.cpp

   1 #include <fstream>
   2 #include <msp/progress.h>
   3 #include <msp/strconv.h>
   4 #include <msp/strutils.h>
   5 #include <msp/core/error.h>
   6 #include <msp/getopt++/getopt++.h>
   7 #include <msp/parser/parser.h>
   8 #include <msp/path/utils.h>
   9 #include <msp/time/units.h>
  10 #include <msp/time/utils.h>
  11 #include "action.h"
  12 #include "analyzer.h"
  13 #include "builder.h"
  14 #include "executable.h"
  15 #include "header.h"
  16 #include "install.h"
  17 #include "misc.h"
  18 #include "objectfile.h"
  19 #include "package.h"
  20 #include "systemlibrary.h"
  21 #include "virtualtarget.h"
  22
  23 using namespace std;
  24 using namespace Msp;
  25
  26 Builder::Builder(int argc, char **argv):
  27         verbose(1),
  28         cwd(Path::getcwd()),
  29         analyzer(0),
  30         jobs(1),
  31         chrome(false)
  32 {
  33         GetOpt getopt;
  34         getopt.add_option(GetOpt::Option('v', "verbose", GetOpt::NONE));
  35         getopt.add_option(GetOpt::Option('a', "analyze", GetOpt::REQUIRED));
  36         getopt.add_option(GetOpt::Option('b', "build", GetOpt::NONE));
  37         getopt.add_option(GetOpt::Option("max-depth", GetOpt::REQUIRED));
  38         getopt.add_option(GetOpt::Option('n', "dry-run", GetOpt::NONE));
  39         getopt.add_option(GetOpt::Option('W', "what-if", GetOpt::REQUIRED));
  40         getopt.add_option(GetOpt::Option('B', "build-all", GetOpt::NONE));
  41         getopt.add_option(GetOpt::Option('C', "chdir", GetOpt::REQUIRED));
  42         getopt.add_option(GetOpt::Option('j', "jobs", GetOpt::REQUIRED));
  43         getopt.add_option(GetOpt::Option('h', "help", GetOpt::NONE));
  44         getopt.add_option(GetOpt::Option('c', "clean", GetOpt::NONE));
  45         getopt.add_option(GetOpt::Option("chrome", GetOpt::NONE));
  46         getopt.add_option(GetOpt::Option("full-paths", GetOpt::NONE));
  47         int index=getopt(argc, argv);
  48
  49         verbose+=getopt['v'].count();
  50
  51         if(getopt['a'])
  52         {
  53                 analyzer=new Analyzer(*this);
  54
  55                 string mode=getopt['a'].arg();
  56                 if(mode=="deps")
  57                         analyzer->set_mode(Analyzer::DEPS);
  58                 else if(mode=="alldeps")
  59                         analyzer->set_mode(Analyzer::ALLDEPS);
  60                 else if(mode=="rebuild")
  61                         analyzer->set_mode(Analyzer::REBUILD);
  62                 else if(mode=="rdeps")
  63                         analyzer->set_mode(Analyzer::RDEPS);
  64                 else
  65                         throw UsageError("Invalid analysis mode");
  66
  67                 if(getopt["max-depth"])
  68                         analyzer->set_max_depth(strtol(getopt["max-depth"].arg()));
  69                 analyzer->set_full_paths(getopt["full-paths"]);
  70         }
  71
  72         if(getopt['j'])
  73                 jobs=max(strtol(getopt['j'].arg()), 1L);
  74
  75         if(getopt["chrome"])
  76                 chrome=true;
  77
  78         if(getopt['C'])
  79                 chdir(getopt['C'].arg().c_str());
  80
  81         for(int i=index; i<argc; ++i)
  82         {
  83                 string v(argv[i]);
  84                 unsigned equal=v.find('=');
  85                 if(equal!=string::npos)
  86                         cmdline_options.insert(RawOptionMap::value_type(v.substr(0, equal), v.substr(equal+1)));
  87                 else
  88                         cmdline_targets.push_back(argv[i]);
  89         }
  90
  91         if(cmdline_targets.empty())
  92                 cmdline_targets.push_back("default");
  93 }
  94
  95 /**
  96 Gets a package with the specified name, possibly creating it.
  97
  98 @param   n  Package name
  99
 100 @return  Pointer to the package, or 0 if the package could not be located
 101 */
 102 Package *Builder::get_package(const string &n)
 103 {
 104         PackageMap::iterator i=packages.find(n);
 105         if(i!=packages.end())
 106                 return i->second;
 107
 108         list<string> argv;
 109         argv.push_back("pkg-config");
 110         argv.push_back("--variable=source");
 111         argv.push_back(n);
 112         string srcdir=strip(run_command(argv));
 113
 114         PathList dirs;
 115         if(!srcdir.empty())
 116                 dirs.push_back(srcdir);
 117
 118         string dirname=n;
 119         if(!dirname.compare(0, 3, "msp"))
 120                 dirname.erase(0, 3);
 121         dirs.push_back(cwd/dirname);
 122         dirs.push_back(cwd/".."/dirname);
 123
 124         for(PathList::iterator j=dirs.begin(); j!=dirs.end(); ++j)
 125                 if(!load_build_file(*j/"Build"))
 126                 {
 127                         i=packages.find(n);
 128                         if(i!=packages.end())
 129                                 return i->second;
 130                         break;
 131                 }
 132
 133         Package *pkg=Package::create(*this, n);
 134         packages.insert(PackageMap::value_type(n, pkg));
 135         new_pkgs.push_back(pkg);
 136
 137         return pkg;
 138 }
 139
 140 Target *Builder::get_target(const string &n)
 141 {
 142         TargetMap::iterator i=targets.find(n);
 143         if(i!=targets.end())
 144                 return i->second;
 145         return 0;
 146 }
 147
 148 Target *Builder::get_header(const string &include, const string &from, const list<string> &path)
 149 {
 150         //XXX Should really hash the include path here
 151         string id=from+":"+include;
 152         TargetMap::iterator i=includes.find(id);
 153         if(i!=includes.end())
 154                 return i->second;
 155
 156         string fn=include.substr(1);
 157         Target *tgt=0;
 158         if(include[0]=='"' && (tgt=check_header(Path::Path(from)/fn)))
 159                 return tgt;
 160         if((tgt=check_header(Path::Path("/usr/include")/fn)))
 161                 return tgt;
 162         if((tgt=check_header(Path::Path("/usr/include/c++/4.1.2")/fn)))
 163                 return tgt;
 164         for(list<string>::const_iterator j=path.begin(); j!=path.end(); ++j)
 165                 if((tgt=check_header(Path::Path(*j)/fn)))
 166                         return tgt;
 167
 168         return 0;
 169 }
 170
 171 Target *Builder::get_library(const string &lib, const list<string> &path)
 172 {
 173         string hash(8, 0);
 174         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 175                 for(unsigned j=0; j<i->size(); ++j)
 176                         hash[j%8]^=(*i)[j];
 177
 178         string basename="lib"+lib+".so";
 179         for(list<string>::const_iterator i=path.begin(); i!=path.end(); ++i)
 180         {
 181                 string full=(Path::Path(*i)/basename).str();
 182                 Target *tgt=get_target(full);
 183                 if(tgt) return tgt;
 184
 185                 if(Path::exists(full))
 186                 {
 187                         add_target(tgt=new SystemLibrary(*this, full));
 188                         return tgt;
 189                 }
 190         }
 191
 192         return 0;
 193 }
 194
 195 int Builder::main()
 196 {
 197         if(load_build_file(cwd/"Build"))
 198         {
 199                 cerr<<"No build info here.\n";
 200                 return 1;
 201         }
 202
 203         default_pkg=packages.begin()->second;
 204
 205         while(!new_pkgs.empty())
 206         {
 207                 Package *pkg=new_pkgs.front();
 208                 if(pkg==default_pkg)
 209                         pkg->process_options(cmdline_options);
 210                 new_pkgs.erase(new_pkgs.begin());
 211                 pkg->resolve_refs();
 212         }
 213
 214         std::list<std::string> missing;
 215         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 216         {
 217                 const list<PackageRef> &requires=i->second->get_requires();
 218                 for(list<PackageRef>::const_iterator j=requires.begin(); j!=requires.end(); ++j)
 219                         if(!j->get_package())
 220                                 missing.push_back(j->get_name());
 221         }
 222
 223         if(!missing.empty())
 224         {
 225                 missing.sort();
 226                 missing.unique();
 227                 cerr<<"The following packages were not found on the system:\n";
 228                 for(list<string>::iterator i=missing.begin(); i!=missing.end(); ++i)
 229                         cerr<<"  "<<*i<<'\n';
 230                 cerr<<"Please install them and try again.\n";
 231                 return 1;
 232         }
 233
 234         default_pkg->create_build_info();
 235
 236         if(create_targets())
 237                 return 1;
 238
 239         cout<<packages.size()<<" packages, "<<targets.size()<<" targets\n";
 240         if(verbose>=2)
 241         {
 242                 for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 243                 {
 244                         cout<<' '<<i->second->get_name();
 245                         if(i->second->get_buildable())
 246                                 cout<<'*';
 247                         unsigned count=0;
 248                         for(TargetMap::iterator j=targets.begin(); j!=targets.end(); ++j)
 249                                 if(j->second->get_package()==i->second)
 250                                         ++count;
 251                         cout<<" ("<<count<<" targets)\n";
 252                 }
 253         }
 254
 255         if(analyzer)
 256                 analyzer->analyze();
 257
 258         build();
 259
 260         return exit_code;
 261 }
 262
 263 Builder::~Builder()
 264 {
 265         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 266                 delete i->second;
 267         for(TargetMap::iterator i=targets.begin(); i!=targets.end(); ++i)
 268                 delete i->second;
 269         delete analyzer;
 270 }
 271
 272 int Builder::load_build_file(const Path::Path &fn)
 273 {
 274         ifstream in(fn.str().c_str());
 275         if(!in)
 276                 return -1;
 277
 278         Parser::Parser parser(in, fn.str());
 279         Loader loader(*this, fn.subpath(0, fn.size()-1));
 280         loader.load(parser);
 281
 282         return 0;
 283 }
 284
 285 int Builder::create_targets()
 286 {
 287         Target *world=new VirtualTarget(*this, "world");
 288         add_target(world);
 289
 290         Target *def_tgt=new VirtualTarget(*this, "default");
 291         add_target(def_tgt);
 292         world->add_depend(def_tgt);
 293
 294         Target *install=new VirtualTarget(*this, "install");
 295         add_target(install);
 296         world->add_depend(install);
 297
 298         for(PackageMap::iterator i=packages.begin(); i!=packages.end(); ++i)
 299         {
 300                 if(!i->second)
 301                         continue;
 302                 if(!i->second->get_buildable())
 303                         continue;
 304
 305                 const ComponentList &components=i->second->get_components();
 306                 for(ComponentList::const_iterator j=components.begin(); j!=components.end(); ++j)
 307                 {
 308                         PathList files;
 309                         const PathList &sources=j->get_sources();
 310                         for(PathList::const_iterator k=sources.begin(); k!=sources.end(); ++k)
 311                         {
 312                                 list<string> sfiles=list_files(*k);
 313                                 for(list<string>::iterator l=sfiles.begin(); l!=sfiles.end(); ++l)
 314                                         files.push_back(*k / *l);
 315                         }
 316
 317                         Path::Path inst_base=i->second->get_config().get_option("prefix").value;
 318
 319                         bool build_exe=j->get_type()!=Component::HEADERS;
 320
 321                         list<ObjectFile *> objs;
 322                         for(PathList::iterator k=files.begin(); k!=files.end(); ++k)
 323                         {
 324                                 string basename=(*k)[-1];
 325                                 string ext=Path::splitext(basename).ext;
 326                                 if(ext==".cpp" || ext==".c")
 327                                 {
 328                                         if(build_exe)
 329                                         {
 330                                                 SourceFile *src=new SourceFile(*this, &*j, k->str());
 331                                                 add_target(src);
 332
 333                                                 ObjectFile *obj=new ObjectFile(*this, *j, *src);
 334                                                 add_target(obj);
 335                                                 objs.push_back(obj);
 336                                         }
 337                                 }
 338                                 else if(ext==".h")
 339                                 {
 340                                         Target *hdr=get_target(k->str());
 341                                         if(!hdr)
 342                                         {
 343                                                 hdr=new Header(*this, &*j, k->str());
 344                                                 add_target(hdr);
 345                                         }
 346                                         if(!j->get_install_headers().empty())
 347                                         {
 348                                                 Path::Path inst_path=inst_base/"include"/j->get_install_headers()/basename;
 349                                                 Install *inst=new Install(*this, *i->second, *hdr, inst_path.str());
 350                                                 add_target(inst);
 351                                                 install->add_depend(inst);
 352                                         }
 353                                 }
 354                         }
 355
 356                         if(build_exe)
 357                         {
 358                                 Executable *exe=new Executable(*this, *j, objs);
 359                                 add_target(exe);
 360                                 if(i->second==default_pkg)
 361                                         def_tgt->add_depend(exe);
 362                                 else
 363                                         world->add_depend(exe);
 364
 365                                 if(j->get_install())
 366                                 {
 367                                         string inst_dir;
 368                                         if(j->get_type()==Component::PROGRAM)
 369                                                 inst_dir="bin";
 370                                         else if(j->get_type()==Component::LIBRARY)
 371                                                 inst_dir="lib";
 372                                         if(!inst_dir.empty())
 373                                         {
 374                                                 Install *inst=new Install(*this, *i->second, *exe, (inst_base/inst_dir/Path::basename(exe->get_name())).str());
 375                                                 add_target(inst);
 376                                                 install->add_depend(inst);
 377                                         }
 378                                 }
 379                         }
 380                 }
 381         }
 382
 383         while(!new_tgts.empty())
 384         {
 385                 Target *tgt=new_tgts.front();
 386                 new_tgts.erase(new_tgts.begin());
 387                 tgt->find_depends();
 388         }
 389
 390         Target *cmdline=new VirtualTarget(*this, "cmdline");
 391         add_target(cmdline);
 392         world->add_depend(cmdline);
 393         for(list<string>::iterator i=cmdline_targets.begin(); i!=cmdline_targets.end(); ++i)
 394         {
 395                 Target *tgt=get_target(*i);
 396                 if(!tgt)
 397                         tgt=get_target((cwd/ *i).str());
 398                 if(!tgt)
 399                 {
 400                         cerr<<"I don't know anything about "<<*i<<'\n';
 401                         return -1;
 402                 }
 403                 cmdline->add_depend(tgt);
 404         }
 405
 406         world->prepare();
 407
 408         return 0;
 409 }
 410
 411 Target *Builder::check_header(const Msp::Path::Path &fn)
 412 {
 413         Target *tgt=get_target(fn.str());
 414         if(tgt) return tgt;
 415
 416         if(Path::exists(fn))
 417         {
 418                 add_target(tgt=new SystemHeader(*this, fn.str()));
 419                 return tgt;
 420         }
 421         return 0;
 422 }
 423
 424 void Builder::add_target(Target *t)
 425 {
 426         targets.insert(TargetMap::value_type(t->get_name(), t));
 427         new_tgts.push_back(t);
 428 }
 429
 430 int Builder::build()
 431 {
 432         Target *cmdline=get_target("cmdline");
 433
 434         unsigned total=cmdline->count_rebuild();
 435         if(!total)
 436         {
 437                 cout<<"Already up to date\n";
 438                 return 0;
 439         }
 440         cout<<"Will build "<<total<<" target(s)\n";
 441
 442         vector<Action *> actions;
 443
 444         //ProgressBar  *progress=0;
 445         if(chrome)
 446         {
 447                 //progress=new ProgressBar(cout, total);
 448                 cout<<"0 targets built\n";
 449         }
 450         unsigned count=0;
 451
 452         bool fail=false;
 453         bool finish=false;
 454
 455         while(!finish)
 456         {
 457                 if(actions.size()<jobs && !fail)
 458                 {
 459                         Target *tgt=cmdline->get_buildable_target();
 460                         if(tgt)
 461                         {
 462                                 /*if(chrome)
 463                                 {
 464                                         cout<<"\e["<<actions.size()+1<<'A';
 465                                         //progress->set(count);
 466                                         cout<<"\e["<<actions.size()+1<<'B';
 467                                 }*/
 468                                 Action *action=tgt->build();
 469                                 if(action)
 470                                         actions.push_back(action);
 471                         }
 472                         else if(actions.empty())
 473                                 finish=true;
 474                 }
 475                 else
 476                         Time::sleep(10*Time::msec);
 477
 478                 for(unsigned i=0; i<actions.size();)
 479                 {
 480                         int status=actions[i]->check();
 481                         if(status>=0)
 482                         {
 483                                 ++count;
 484                                 if(chrome)
 485                                 {
 486                                         cout<<"\e["<<actions.size()+1<<'A';
 487                                         cout<<count<<" targets built\n";
 488                                         if(i)
 489                                                 cout<<"\e["<<i<<"B";
 490                                         cout<<"\e[M";
 491                                         if(i<actions.size()-1)
 492                                                 cout<<"\e["<<actions.size()-i-1<<"B";
 493                                         cout.flush();
 494                                 }
 495                                 delete actions[i];
 496                                 actions.erase(actions.begin()+i);
 497                                 if(status>0)
 498                                         fail=true;
 499                                 if(actions.empty() && fail)
 500                                         finish=true;
 501                         }
 502                         else
 503                                 ++i;
 504                 }
 505         }
 506
 507         //delete progress;
 508
 509         return fail?-1:0;
 510 }
 511
 512 Application::RegApp<Builder> Builder::reg;
 513
 514 Builder::Loader::Loader(Builder &b, const Path::Path &s):
 515         bld(b),
 516         src(s)
 517 {
 518         add("package", &Loader::package);
 519 }
 520
 521 void Builder::Loader::package(const string &n)
 522 {
 523         Package *pkg=new Package(bld, n, src);
 524         load_sub(*pkg);
 525         bld.packages.insert(PackageMap::value_type(n, pkg));
 526         bld.new_pkgs.push_back(pkg);
 527 }
 528