apt-private/private-install.cc

   1 // Include Files                                                        /*{{{*/
   2 #include <config.h>
   3
   4 #include <apt-pkg/aptconfiguration.h>
   5 #include <apt-pkg/error.h>
   6 #include <apt-pkg/cmndline.h>
   7 #include <apt-pkg/init.h>
   8 #include <apt-pkg/depcache.h>
   9 #include <apt-pkg/sourcelist.h>
  10 #include <apt-pkg/algorithms.h>
  11 #include <apt-pkg/acquire-item.h>
  12 #include <apt-pkg/strutl.h>
  13 #include <apt-pkg/fileutl.h>
  14 #include <apt-pkg/clean.h>
  15 #include <apt-pkg/srcrecords.h>
  16 #include <apt-pkg/version.h>
  17 #include <apt-pkg/cachefile.h>
  18 #include <apt-pkg/cacheset.h>
  19 #include <apt-pkg/sptr.h>
  20 #include <apt-pkg/md5.h>
  21 #include <apt-pkg/versionmatch.h>
  22 #include <apt-pkg/progress.h>
  23 #include <apt-pkg/pkgsystem.h>
  24 #include <apt-pkg/pkgrecords.h>
  25 #include <apt-pkg/indexfile.h>
  26 #include <apt-pkg/iprogress.h>
  27
  28 #include <set>
  29 #include <locale.h>
  30 #include <langinfo.h>
  31 #include <fstream>
  32 #include <termios.h>
  33 #include <sys/ioctl.h>
  34 #include <sys/stat.h>
  35 #include <sys/statfs.h>
  36 #include <sys/statvfs.h>
  37 #include <signal.h>
  38 #include <unistd.h>
  39 #include <stdio.h>
  40 #include <errno.h>
  41 #include <regex.h>
  42 #include <sys/wait.h>
  43 #include <sstream>
  44
  45 #include "private-install.h"
  46 #include "private-download.h"
  47 #include "private-cachefile.h"
  48 #include "private-output.h"
  49 #include "private-cacheset.h"
  50 #include "acqprogress.h"
  51
  52 #include <apti18n.h>
  53                                                                         /*}}}*/
  54
  55 // InstallPackages - Actually download and install the packages         /*{{{*/
  56 // ---------------------------------------------------------------------
  57 /* This displays the informative messages describing what is going to
  58    happen and then calls the download routines */
  59 bool InstallPackages(CacheFile &Cache,bool ShwKept,bool Ask, bool Safety)
  60 {
  61    if (_config->FindB("APT::Get::Purge",false) == true)
  62    {
  63       pkgCache::PkgIterator I = Cache->PkgBegin();
  64       for (; I.end() == false; ++I)
  65       {
  66          if (I.Purge() == false && Cache[I].Mode == pkgDepCache::ModeDelete)
  67             Cache->MarkDelete(I,true);
  68       }
  69    }
  70
  71    bool Fail = false;
  72    bool Essential = false;
  73
  74    // Show all the various warning indicators
  75    ShowDel(c1out,Cache);
  76    ShowNew(c1out,Cache);
  77    if (ShwKept == true)
  78       ShowKept(c1out,Cache);
  79    Fail |= !ShowHold(c1out,Cache);
  80    if (_config->FindB("APT::Get::Show-Upgraded",true) == true)
  81       ShowUpgraded(c1out,Cache);
  82    Fail |= !ShowDowngraded(c1out,Cache);
  83    if (_config->FindB("APT::Get::Download-Only",false) == false)
  84         Essential = !ShowEssential(c1out,Cache);
  85    Fail |= Essential;
  86    Stats(c1out,Cache);
  87
  88    // Sanity check
  89    if (Cache->BrokenCount() != 0)
  90    {
  91       ShowBroken(c1out,Cache,false);
  92       return _error->Error(_("Internal error, InstallPackages was called with broken packages!"));
  93    }
  94
  95    if (Cache->DelCount() == 0 && Cache->InstCount() == 0 &&
  96        Cache->BadCount() == 0)
  97       return true;
  98
  99    // No remove flag
 100    if (Cache->DelCount() != 0 && _config->FindB("APT::Get::Remove",true) == false)
 101       return _error->Error(_("Packages need to be removed but remove is disabled."));
 102
 103    // Run the simulator ..
 104    if (_config->FindB("APT::Get::Simulate") == true)
 105    {
 106       pkgSimulate PM(Cache);
 107
 108       int status_fd = _config->FindI("APT::Status-Fd",-1);
 109       APT::Progress::PackageManager *progress = NULL;
 110       if (status_fd > 0)
 111          progress = new APT::Progress::PackageManagerProgressFd(status_fd);
 112       pkgPackageManager::OrderResult Res = PM.DoInstall(progress);
 113       delete progress;
 114
 115       if (Res == pkgPackageManager::Failed)
 116          return false;
 117       if (Res != pkgPackageManager::Completed)
 118          return _error->Error(_("Internal error, Ordering didn't finish"));
 119       return true;
 120    }
 121
 122    // Create the text record parser
 123    pkgRecords Recs(Cache);
 124    if (_error->PendingError() == true)
 125       return false;
 126
 127    // Create the download object
 128    pkgAcquire Fetcher;
 129    AcqTextStatus Stat(ScreenWidth,_config->FindI("quiet",0));
 130    if (_config->FindB("APT::Get::Print-URIs", false) == true)
 131    {
 132       // force a hashsum for compatibility reasons
 133       _config->CndSet("Acquire::ForceHash", "md5sum");
 134    }
 135    else if (Fetcher.Setup(&Stat, _config->FindDir("Dir::Cache::Archives")) == false)
 136       return false;
 137
 138    // Read the source list
 139    if (Cache.BuildSourceList() == false)
 140       return false;
 141    pkgSourceList *List = Cache.GetSourceList();
 142
 143    // Create the package manager and prepare to download
 144    SPtr<pkgPackageManager> PM= _system->CreatePM(Cache);
 145    if (PM->GetArchives(&Fetcher,List,&Recs) == false ||
 146        _error->PendingError() == true)
 147       return false;
 148
 149    // Display statistics
 150    unsigned long long FetchBytes = Fetcher.FetchNeeded();
 151    unsigned long long FetchPBytes = Fetcher.PartialPresent();
 152    unsigned long long DebBytes = Fetcher.TotalNeeded();
 153    if (DebBytes != Cache->DebSize())
 154    {
 155       c0out << DebBytes << ',' << Cache->DebSize() << std::endl;
 156       c0out << _("How odd.. The sizes didn't match, email apt@packages.debian.org") << std::endl;
 157    }
 158
 159    // Number of bytes
 160    if (DebBytes != FetchBytes)
 161       //TRANSLATOR: The required space between number and unit is already included
 162       // in the replacement strings, so %sB will be correctly translate in e.g. 1,5 MB
 163       ioprintf(c1out,_("Need to get %sB/%sB of archives.\n"),
 164                SizeToStr(FetchBytes).c_str(),SizeToStr(DebBytes).c_str());
 165    else if (DebBytes != 0)
 166       //TRANSLATOR: The required space between number and unit is already included
 167       // in the replacement string, so %sB will be correctly translate in e.g. 1,5 MB
 168       ioprintf(c1out,_("Need to get %sB of archives.\n"),
 169                SizeToStr(DebBytes).c_str());
 170
 171    // Size delta
 172    if (Cache->UsrSize() >= 0)
 173       //TRANSLATOR: The required space between number and unit is already included
 174       // in the replacement string, so %sB will be correctly translate in e.g. 1,5 MB
 175       ioprintf(c1out,_("After this operation, %sB of additional disk space will be used.\n"),
 176                SizeToStr(Cache->UsrSize()).c_str());
 177    else
 178       //TRANSLATOR: The required space between number and unit is already included
 179       // in the replacement string, so %sB will be correctly translate in e.g. 1,5 MB
 180       ioprintf(c1out,_("After this operation, %sB disk space will be freed.\n"),
 181                SizeToStr(-1*Cache->UsrSize()).c_str());
 182
 183    if (_error->PendingError() == true)
 184       return false;
 185
 186    /* Check for enough free space, but only if we are actually going to
 187       download */
 188    if (_config->FindB("APT::Get::Print-URIs") == false &&
 189        _config->FindB("APT::Get::Download",true) == true)
 190    {
 191       struct statvfs Buf;
 192       std::string OutputDir = _config->FindDir("Dir::Cache::Archives");
 193       if (statvfs(OutputDir.c_str(),&Buf) != 0) {
 194          if (errno == EOVERFLOW)
 195             return _error->WarningE("statvfs",_("Couldn't determine free space in %s"),
 196                                  OutputDir.c_str());
 197          else
 198             return _error->Errno("statvfs",_("Couldn't determine free space in %s"),
 199                                  OutputDir.c_str());
 200       } else if (unsigned(Buf.f_bfree) < (FetchBytes - FetchPBytes)/Buf.f_bsize)
 201       {
 202          struct statfs Stat;
 203          if (statfs(OutputDir.c_str(),&Stat) != 0
 204 #if HAVE_STRUCT_STATFS_F_TYPE
 205              || unsigned(Stat.f_type) != RAMFS_MAGIC
 206 #endif
 207              )
 208             return _error->Error(_("You don't have enough free space in %s."),
 209                 OutputDir.c_str());
 210       }
 211    }
 212
 213    // Fail safe check
 214    if (_config->FindI("quiet",0) >= 2 ||
 215        _config->FindB("APT::Get::Assume-Yes",false) == true)
 216    {
 217       if (Fail == true && _config->FindB("APT::Get::Force-Yes",false) == false)
 218          return _error->Error(_("There are problems and -y was used without --force-yes"));
 219    }
 220
 221    if (Essential == true && Safety == true)
 222    {
 223       if (_config->FindB("APT::Get::Trivial-Only",false) == true)
 224          return _error->Error(_("Trivial Only specified but this is not a trivial operation."));
 225
 226       // TRANSLATOR: This string needs to be typed by the user as a confirmation, so be
 227       //             careful with hard to type or special characters (like non-breaking spaces)
 228       const char *Prompt = _("Yes, do as I say!");
 229       ioprintf(c2out,
 230                _("You are about to do something potentially harmful.\n"
 231                  "To continue type in the phrase '%s'\n"
 232                  " ?] "),Prompt);
 233       c2out << std::flush;
 234       if (AnalPrompt(Prompt) == false)
 235       {
 236          c2out << _("Abort.") << std::endl;
 237          exit(1);
 238       }
 239    }
 240    else
 241    {
 242       // Prompt to continue
 243       if (Ask == true || Fail == true)
 244       {
 245          if (_config->FindB("APT::Get::Trivial-Only",false) == true)
 246             return _error->Error(_("Trivial Only specified but this is not a trivial operation."));
 247
 248          if (_config->FindI("quiet",0) < 2 &&
 249              _config->FindB("APT::Get::Assume-Yes",false) == false)
 250          {
 251             c2out << _("Do you want to continue?") << std::flush;
 252             if (YnPrompt() == false)
 253             {
 254                c2out << _("Abort.") << std::endl;
 255                exit(1);
 256             }
 257          }
 258       }
 259    }
 260
 261    // Just print out the uris an exit if the --print-uris flag was used
 262    if (_config->FindB("APT::Get::Print-URIs") == true)
 263    {
 264       pkgAcquire::UriIterator I = Fetcher.UriBegin();
 265       for (; I != Fetcher.UriEnd(); ++I)
 266          std::cout << '\'' << I->URI << "' " << flNotDir(I->Owner->DestFile) << ' ' <<
 267                I->Owner->FileSize << ' ' << I->Owner->HashSum() << std::endl;
 268       return true;
 269    }
 270
 271    if (!CheckAuth(Fetcher, true))
 272       return false;
 273
 274    /* Unlock the dpkg lock if we are not going to be doing an install
 275       after. */
 276    if (_config->FindB("APT::Get::Download-Only",false) == true)
 277       _system->UnLock();
 278
 279    // Run it
 280    while (1)
 281    {
 282       bool Transient = false;
 283       if (_config->FindB("APT::Get::Download",true) == false)
 284       {
 285          for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin(); I < Fetcher.ItemsEnd();)
 286          {
 287             if ((*I)->Local == true)
 288             {
 289                ++I;
 290                continue;
 291             }
 292
 293             // Close the item and check if it was found in cache
 294             (*I)->Finished();
 295             if ((*I)->Complete == false)
 296                Transient = true;
 297
 298             // Clear it out of the fetch list
 299             delete *I;
 300             I = Fetcher.ItemsBegin();
 301          }
 302       }
 303
 304       bool Failed = false;
 305       if (AcquireRun(Fetcher, 0, &Failed, &Transient) == false)
 306          return false;
 307
 308       /* If we are in no download mode and missing files and there were
 309          'failures' then the user must specify -m. Furthermore, there
 310          is no such thing as a transient error in no-download mode! */
 311       if (Transient == true &&
 312           _config->FindB("APT::Get::Download",true) == false)
 313       {
 314          Transient = false;
 315          Failed = true;
 316       }
 317
 318       if (_config->FindB("APT::Get::Download-Only",false) == true)
 319       {
 320          if (Failed == true && _config->FindB("APT::Get::Fix-Missing",false) == false)
 321             return _error->Error(_("Some files failed to download"));
 322          c1out << _("Download complete and in download only mode") << std::endl;
 323          return true;
 324       }
 325
 326       if (Failed == true && _config->FindB("APT::Get::Fix-Missing",false) == false)
 327       {
 328          return _error->Error(_("Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?"));
 329       }
 330
 331       if (Transient == true && Failed == true)
 332          return _error->Error(_("--fix-missing and media swapping is not currently supported"));
 333
 334       // Try to deal with missing package files
 335       if (Failed == true && PM->FixMissing() == false)
 336       {
 337          c2out << _("Unable to correct missing packages.") << std::endl;
 338          return _error->Error(_("Aborting install."));
 339       }
 340
 341       _system->UnLock();
 342
 343       // FIXME: make this a factory
 344       // select the right progress
 345       int status_fd = _config->FindI("APT::Status-Fd",-1);
 346
 347       APT::Progress::PackageManager *progress = NULL;
 348       if (status_fd > 0)
 349          progress = new APT::Progress::PackageManagerProgressFd(status_fd);
 350       else if(_config->FindB("Dpkg::Progress-Fancy", false) == true)
 351          progress = new APT::Progress::PackageManagerFancy();
 352       else if (_config->FindB("Dpkg::Progress",
 353                 _config->FindB("DpkgPM::Progress", false)) == true)
 354          progress = new APT::Progress::PackageManagerText();
 355       else
 356          progress = new APT::Progress::PackageManager();
 357       pkgPackageManager::OrderResult Res = PM->DoInstall(progress);
 358       delete progress;
 359
 360       if (Res == pkgPackageManager::Failed || _error->PendingError() == true)
 361          return false;
 362       if (Res == pkgPackageManager::Completed)
 363          break;
 364
 365       // Reload the fetcher object and loop again for media swapping
 366       Fetcher.Shutdown();
 367       if (PM->GetArchives(&Fetcher,List,&Recs) == false)
 368          return false;
 369
 370       _system->Lock();
 371    }
 372
 373    std::set<std::string> const disappearedPkgs = PM->GetDisappearedPackages();
 374    if (disappearedPkgs.empty() == true)
 375       return true;
 376
 377    std::string disappear;
 378    for (std::set<std::string>::const_iterator d = disappearedPkgs.begin();
 379         d != disappearedPkgs.end(); ++d)
 380       disappear.append(*d).append(" ");
 381
 382    ShowList(c1out, P_("The following package disappeared from your system as\n"
 383         "all files have been overwritten by other packages:",
 384         "The following packages disappeared from your system as\n"
 385         "all files have been overwritten by other packages:", disappearedPkgs.size()), disappear, "");
 386    c0out << _("Note: This is done automatically and on purpose by dpkg.") << std::endl;
 387
 388    return true;
 389 }
 390                                                                         /*}}}*/
 391 // DoAutomaticRemove - Remove all automatic unused packages             /*{{{*/
 392 // ---------------------------------------------------------------------
 393 /* Remove unused automatic packages */
 394 bool DoAutomaticRemove(CacheFile &Cache)
 395 {
 396    bool Debug = _config->FindI("Debug::pkgAutoRemove",false);
 397    bool doAutoRemove = _config->FindB("APT::Get::AutomaticRemove", false);
 398    bool hideAutoRemove = _config->FindB("APT::Get::HideAutoRemove");
 399
 400    pkgDepCache::ActionGroup group(*Cache);
 401    if(Debug)
 402       std::cout << "DoAutomaticRemove()" << std::endl;
 403
 404    if (doAutoRemove == true &&
 405         _config->FindB("APT::Get::Remove",true) == false)
 406    {
 407       c1out << _("We are not supposed to delete stuff, can't start "
 408                  "AutoRemover") << std::endl;
 409       return false;
 410    }
 411
 412    bool purgePkgs = _config->FindB("APT::Get::Purge", false);
 413    bool smallList = (hideAutoRemove == false &&
 414                 strcasecmp(_config->Find("APT::Get::HideAutoRemove","").c_str(),"small") == 0);
 415
 416    unsigned long autoRemoveCount = 0;
 417    APT::PackageSet tooMuch;
 418    APT::PackageList autoRemoveList;
 419    // look over the cache to see what can be removed
 420    for (unsigned J = 0; J < Cache->Head().PackageCount; ++J)
 421    {
 422       pkgCache::PkgIterator Pkg(Cache,Cache.List[J]);
 423       if (Cache[Pkg].Garbage)
 424       {
 425          if(Pkg.CurrentVer() != 0 || Cache[Pkg].Install())
 426             if(Debug)
 427                std::cout << "We could delete %s" <<  Pkg.FullName(true).c_str() << std::endl;
 428
 429          if (doAutoRemove)
 430          {
 431             if(Pkg.CurrentVer() != 0 &&
 432                Pkg->CurrentState != pkgCache::State::ConfigFiles)
 433                Cache->MarkDelete(Pkg, purgePkgs, 0, false);
 434             else
 435                Cache->MarkKeep(Pkg, false, false);
 436          }
 437          else
 438          {
 439             if (hideAutoRemove == false && Cache[Pkg].Delete() == false)
 440                autoRemoveList.insert(Pkg);
 441             // if the package is a new install and already garbage we don't need to
 442             // install it in the first place, so nuke it instead of show it
 443             if (Cache[Pkg].Install() == true && Pkg.CurrentVer() == 0)
 444             {
 445                if (Pkg.CandVersion() != 0)
 446                   tooMuch.insert(Pkg);
 447                Cache->MarkDelete(Pkg, false, 0, false);
 448             }
 449             // only show stuff in the list that is not yet marked for removal
 450             else if(hideAutoRemove == false && Cache[Pkg].Delete() == false)
 451                ++autoRemoveCount;
 452          }
 453       }
 454    }
 455
 456    // we could have removed a new dependency of a garbage package,
 457    // so check if a reverse depends is broken and if so install it again.
 458    if (tooMuch.empty() == false && (Cache->BrokenCount() != 0 || Cache->PolicyBrokenCount() != 0))
 459    {
 460       bool Changed;
 461       do {
 462          Changed = false;
 463          for (APT::PackageSet::const_iterator Pkg = tooMuch.begin();
 464               Pkg != tooMuch.end(); ++Pkg)
 465          {
 466             APT::PackageSet too;
 467             too.insert(*Pkg);
 468             for (pkgCache::PrvIterator Prv = Cache[Pkg].CandidateVerIter(Cache).ProvidesList();
 469                  Prv.end() == false; ++Prv)
 470                too.insert(Prv.ParentPkg());
 471             for (APT::PackageSet::const_iterator P = too.begin(); P != too.end(); ++P)
 472             {
 473                for (pkgCache::DepIterator R = P.RevDependsList();
 474                     R.end() == false; ++R)
 475                {
 476                   if (R.IsNegative() == true ||
 477                       Cache->IsImportantDep(R) == false)
 478                      continue;
 479                  pkgCache::PkgIterator N = R.ParentPkg();
 480                  if (N.end() == true || (N->CurrentVer == 0 && (*Cache)[N].Install() == false))
 481                     continue;
 482                  if (Debug == true)
 483                     std::clog << "Save " << Pkg << " as another installed garbage package depends on it" << std::endl;
 484                  Cache->MarkInstall(Pkg, false, 0, false);
 485                  if (hideAutoRemove == false)
 486                     ++autoRemoveCount;
 487                  tooMuch.erase(Pkg);
 488                  Changed = true;
 489                  break;
 490                }
 491                if (Changed == true)
 492                   break;
 493             }
 494             if (Changed == true)
 495                break;
 496          }
 497       } while (Changed == true);
 498    }
 499
 500    std::string autoremovelist, autoremoveversions;
 501    if (smallList == false && autoRemoveCount != 0)
 502    {
 503       for (APT::PackageList::const_iterator Pkg = autoRemoveList.begin(); Pkg != autoRemoveList.end(); ++Pkg)
 504       {
 505          if (Cache[Pkg].Garbage == false)
 506             continue;
 507          autoremovelist += Pkg.FullName(true) + " ";
 508          autoremoveversions += std::string(Cache[Pkg].CandVersion) + "\n";
 509       }
 510    }
 511
 512    // Now see if we had destroyed anything (if we had done anything)
 513    if (Cache->BrokenCount() != 0)
 514    {
 515       c1out << _("Hmm, seems like the AutoRemover destroyed something which really\n"
 516                  "shouldn't happen. Please file a bug report against apt.") << std::endl;
 517       c1out << std::endl;
 518       c1out << _("The following information may help to resolve the situation:") << std::endl;
 519       c1out << std::endl;
 520       ShowBroken(c1out,Cache,false);
 521
 522       return _error->Error(_("Internal Error, AutoRemover broke stuff"));
 523    }
 524
 525    // if we don't remove them, we should show them!
 526    if (doAutoRemove == false && (autoremovelist.empty() == false || autoRemoveCount != 0))
 527    {
 528       if (smallList == false)
 529          ShowList(c1out, P_("The following package was automatically installed and is no longer required:",
 530                   "The following packages were automatically installed and are no longer required:",
 531                   autoRemoveCount), autoremovelist, autoremoveversions);
 532       else
 533          ioprintf(c1out, P_("%lu package was automatically installed and is no longer required.\n",
 534                   "%lu packages were automatically installed and are no longer required.\n", autoRemoveCount), autoRemoveCount);
 535       c1out << P_("Use 'apt-get autoremove' to remove it.", "Use 'apt-get autoremove' to remove them.", autoRemoveCount) << std::endl;
 536    }
 537    return true;
 538 }
 539                                                                         /*}}}*/
 540 // DoCacheManipulationFromCommandLine                                   /*{{{*/
 541 static const unsigned short MOD_REMOVE = 1;
 542 static const unsigned short MOD_INSTALL = 2;
 543
 544 bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache)
 545 {
 546    std::map<unsigned short, APT::VersionSet> verset;
 547    return DoCacheManipulationFromCommandLine(CmdL, Cache, verset);
 548 }
 549 bool DoCacheManipulationFromCommandLine(CommandLine &CmdL, CacheFile &Cache,
 550                                         std::map<unsigned short, APT::VersionSet> &verset)
 551 {
 552
 553    // Enter the special broken fixing mode if the user specified arguments
 554    bool BrokenFix = false;
 555    if (Cache->BrokenCount() != 0)
 556       BrokenFix = true;
 557
 558    SPtr<pkgProblemResolver> Fix;
 559    if (_config->FindB("APT::Get::CallResolver", true) == true)
 560       Fix = new pkgProblemResolver(Cache);
 561
 562    unsigned short fallback = MOD_INSTALL;
 563    if (strcasecmp(CmdL.FileList[0],"remove") == 0)
 564       fallback = MOD_REMOVE;
 565    else if (strcasecmp(CmdL.FileList[0], "purge") == 0)
 566    {
 567       _config->Set("APT::Get::Purge", true);
 568       fallback = MOD_REMOVE;
 569    }
 570    else if (strcasecmp(CmdL.FileList[0], "autoremove") == 0)
 571    {
 572       _config->Set("APT::Get::AutomaticRemove", "true");
 573       fallback = MOD_REMOVE;
 574    }
 575
 576    std::list<APT::VersionSet::Modifier> mods;
 577    mods.push_back(APT::VersionSet::Modifier(MOD_INSTALL, "+",
 578                 APT::VersionSet::Modifier::POSTFIX, APT::VersionSet::CANDIDATE));
 579    mods.push_back(APT::VersionSet::Modifier(MOD_REMOVE, "-",
 580                 APT::VersionSet::Modifier::POSTFIX, APT::VersionSet::NEWEST));
 581    CacheSetHelperAPTGet helper(c0out);
 582    verset = APT::VersionSet::GroupedFromCommandLine(Cache,
 583                 CmdL.FileList + 1, mods, fallback, helper);
 584
 585    if (_error->PendingError() == true)
 586    {
 587       helper.showVirtualPackageErrors(Cache);
 588       return false;
 589    }
 590
 591
 592   TryToInstall InstallAction(Cache, Fix, BrokenFix);
 593   TryToRemove RemoveAction(Cache, Fix);
 594
 595    // new scope for the ActionGroup
 596    {
 597       pkgDepCache::ActionGroup group(Cache);
 598       unsigned short const order[] = { MOD_REMOVE, MOD_INSTALL, 0 };
 599
 600       for (unsigned short i = 0; order[i] != 0; ++i)
 601       {
 602          if (order[i] == MOD_INSTALL)
 603             InstallAction = std::for_each(verset[MOD_INSTALL].begin(), verset[MOD_INSTALL].end(), InstallAction);
 604          else if (order[i] == MOD_REMOVE)
 605             RemoveAction = std::for_each(verset[MOD_REMOVE].begin(), verset[MOD_REMOVE].end(), RemoveAction);
 606       }
 607
 608       if (Fix != NULL && _config->FindB("APT::Get::AutoSolving", true) == true)
 609       {
 610          for (unsigned short i = 0; order[i] != 0; ++i)
 611          {
 612             if (order[i] != MOD_INSTALL)
 613                continue;
 614             InstallAction.propergateReleaseCandiateSwitching(helper.selectedByRelease, c0out);
 615             InstallAction.doAutoInstall();
 616          }
 617       }
 618
 619       if (_error->PendingError() == true)
 620       {
 621          return false;
 622       }
 623
 624       /* If we are in the Broken fixing mode we do not attempt to fix the
 625          problems. This is if the user invoked install without -f and gave
 626          packages */
 627       if (BrokenFix == true && Cache->BrokenCount() != 0)
 628       {
 629          c1out << _("You might want to run 'apt-get -f install' to correct these:") << std::endl;
 630          ShowBroken(c1out,Cache,false);
 631          return _error->Error(_("Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution)."));
 632       }
 633
 634       if (Fix != NULL)
 635       {
 636          // Call the scored problem resolver
 637          Fix->Resolve(true);
 638       }
 639
 640       // Now we check the state of the packages,
 641       if (Cache->BrokenCount() != 0)
 642       {
 643          c1out <<
 644             _("Some packages could not be installed. This may mean that you have\n"
 645               "requested an impossible situation or if you are using the unstable\n"
 646               "distribution that some required packages have not yet been created\n"
 647               "or been moved out of Incoming.") << std::endl;
 648          /*
 649          if (Packages == 1)
 650          {
 651             c1out << std::endl;
 652             c1out <<
 653                _("Since you only requested a single operation it is extremely likely that\n"
 654                  "the package is simply not installable and a bug report against\n"
 655                  "that package should be filed.") << std::endl;
 656          }
 657          */
 658
 659          c1out << _("The following information may help to resolve the situation:") << std::endl;
 660          c1out << std::endl;
 661          ShowBroken(c1out,Cache,false);
 662          if (_error->PendingError() == true)
 663             return false;
 664          else
 665             return _error->Error(_("Broken packages"));
 666       }
 667    }
 668    if (!DoAutomaticRemove(Cache))
 669       return false;
 670
 671    // if nothing changed in the cache, but only the automark information
 672    // we write the StateFile here, otherwise it will be written in
 673    // cache.commit()
 674    if (InstallAction.AutoMarkChanged > 0 &&
 675        Cache->DelCount() == 0 && Cache->InstCount() == 0 &&
 676        Cache->BadCount() == 0 &&
 677        _config->FindB("APT::Get::Simulate",false) == false)
 678       Cache->writeStateFile(NULL);
 679
 680    return true;
 681 }
 682                                                                         /*}}}*/
 683 // DoInstall - Install packages from the command line                   /*{{{*/
 684 // ---------------------------------------------------------------------
 685 /* Install named packages */
 686 bool DoInstall(CommandLine &CmdL)
 687 {
 688    CacheFile Cache;
 689    if (Cache.OpenForInstall() == false ||
 690        Cache.CheckDeps(CmdL.FileSize() != 1) == false)
 691       return false;
 692
 693    std::map<unsigned short, APT::VersionSet> verset;
 694
 695    if(!DoCacheManipulationFromCommandLine(CmdL, Cache, verset))
 696       return false;
 697
 698    /* Print out a list of packages that are going to be installed extra
 699       to what the user asked */
 700    if (Cache->InstCount() != verset[MOD_INSTALL].size())
 701    {
 702       std::string List;
 703       std::string VersionsList;
 704       for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 705       {
 706          pkgCache::PkgIterator I(Cache,Cache.List[J]);
 707          if ((*Cache)[I].Install() == false)
 708             continue;
 709          pkgCache::VerIterator Cand = Cache[I].CandidateVerIter(Cache);
 710
 711          if (verset[MOD_INSTALL].find(Cand) != verset[MOD_INSTALL].end())
 712             continue;
 713
 714          List += I.FullName(true) + " ";
 715          VersionsList += std::string(Cache[I].CandVersion) + "\n";
 716       }
 717
 718       ShowList(c1out,_("The following extra packages will be installed:"),List,VersionsList);
 719    }
 720
 721    /* Print out a list of suggested and recommended packages */
 722    {
 723       std::string SuggestsList, RecommendsList;
 724       std::string SuggestsVersions, RecommendsVersions;
 725       for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 726       {
 727          pkgCache::PkgIterator Pkg(Cache,Cache.List[J]);
 728
 729          /* Just look at the ones we want to install */
 730          if ((*Cache)[Pkg].Install() == false)
 731            continue;
 732
 733          // get the recommends/suggests for the candidate ver
 734          pkgCache::VerIterator CV = (*Cache)[Pkg].CandidateVerIter(*Cache);
 735          for (pkgCache::DepIterator D = CV.DependsList(); D.end() == false; )
 736          {
 737             pkgCache::DepIterator Start;
 738             pkgCache::DepIterator End;
 739             D.GlobOr(Start,End); // advances D
 740
 741             // FIXME: we really should display a or-group as a or-group to the user
 742             //        the problem is that ShowList is incapable of doing this
 743             std::string RecommendsOrList,RecommendsOrVersions;
 744             std::string SuggestsOrList,SuggestsOrVersions;
 745             bool foundInstalledInOrGroup = false;
 746             for(;;)
 747             {
 748                /* Skip if package is  installed already, or is about to be */
 749                std::string target = Start.TargetPkg().FullName(true) + " ";
 750                pkgCache::PkgIterator const TarPkg = Start.TargetPkg();
 751                if (TarPkg->SelectedState == pkgCache::State::Install ||
 752                    TarPkg->SelectedState == pkgCache::State::Hold ||
 753                    Cache[Start.TargetPkg()].Install())
 754                {
 755                   foundInstalledInOrGroup=true;
 756                   break;
 757                }
 758
 759                /* Skip if we already saw it */
 760                if (int(SuggestsList.find(target)) != -1 || int(RecommendsList.find(target)) != -1)
 761                {
 762                   foundInstalledInOrGroup=true;
 763                   break;
 764                }
 765
 766                // this is a dep on a virtual pkg, check if any package that provides it
 767                // should be installed
 768                if(Start.TargetPkg().ProvidesList() != 0)
 769                {
 770                   pkgCache::PrvIterator I = Start.TargetPkg().ProvidesList();
 771                   for (; I.end() == false; ++I)
 772                   {
 773                      pkgCache::PkgIterator Pkg = I.OwnerPkg();
 774                      if (Cache[Pkg].CandidateVerIter(Cache) == I.OwnerVer() &&
 775                          Pkg.CurrentVer() != 0)
 776                         foundInstalledInOrGroup=true;
 777                   }
 778                }
 779
 780                if (Start->Type == pkgCache::Dep::Suggests)
 781                {
 782                   SuggestsOrList += target;
 783                   SuggestsOrVersions += std::string(Cache[Start.TargetPkg()].CandVersion) + "\n";
 784                }
 785
 786                if (Start->Type == pkgCache::Dep::Recommends)
 787                {
 788                   RecommendsOrList += target;
 789                   RecommendsOrVersions += std::string(Cache[Start.TargetPkg()].CandVersion) + "\n";
 790                }
 791
 792                if (Start >= End)
 793                   break;
 794                ++Start;
 795             }
 796
 797             if(foundInstalledInOrGroup == false)
 798             {
 799                RecommendsList += RecommendsOrList;
 800                RecommendsVersions += RecommendsOrVersions;
 801                SuggestsList += SuggestsOrList;
 802                SuggestsVersions += SuggestsOrVersions;
 803             }
 804
 805          }
 806       }
 807
 808       ShowList(c1out,_("Suggested packages:"),SuggestsList,SuggestsVersions);
 809       ShowList(c1out,_("Recommended packages:"),RecommendsList,RecommendsVersions);
 810
 811    }
 812
 813    // See if we need to prompt
 814    // FIXME: check if really the packages in the set are going to be installed
 815    if (Cache->InstCount() == verset[MOD_INSTALL].size() && Cache->DelCount() == 0)
 816       return InstallPackages(Cache,false,false);
 817
 818    return InstallPackages(Cache,false);
 819 }
 820                                                                         /*}}}*/