cmdline/apt-get.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: apt-get.cc,v 1.156 2004/08/28 01:05:16 mdz Exp $
   4 /* ######################################################################
   5
   6    apt-get - Cover for dpkg
   7
   8    This is an allout cover for dpkg implementing a safer front end. It is
   9    based largely on libapt-pkg.
  10
  11    The syntax is different,
  12       apt-get [opt] command [things]
  13    Where command is:
  14       update - Resyncronize the package files from their sources
  15       upgrade - Smart-Download the newest versions of all packages
  16       dselect-upgrade - Follows dselect's changes to the Status: field
  17                        and installes new and removes old packages
  18       dist-upgrade - Powerful upgrader designed to handle the issues with
  19                     a new distribution.
  20       install - Download and install a given package (by name, not by .deb)
  21       check - Update the package cache and check for broken packages
  22       clean - Erase the .debs downloaded to /var/cache/apt/archives and
  23               the partial dir too
  24
  25    ##################################################################### */
  26                                                                         /*}}}*/
  27 // Include Files                                                        /*{{{*/
  28 #include <config.h>
  29
  30 #include <apt-pkg/acquire-item.h>
  31 #include <apt-pkg/algorithms.h>
  32 #include <apt-pkg/aptconfiguration.h>
  33 #include <apt-pkg/cachefile.h>
  34 #include <apt-pkg/cacheset.h>
  35 #include <apt-pkg/clean.h>
  36 #include <apt-pkg/cmndline.h>
  37 #include <apt-pkg/debmetaindex.h>
  38 #include <apt-pkg/depcache.h>
  39 #include <apt-pkg/error.h>
  40 #include <apt-pkg/fileutl.h>
  41 #include <apt-pkg/indexfile.h>
  42 #include <apt-pkg/init.h>
  43 #include <apt-pkg/md5.h>
  44 #include <apt-pkg/metaindex.h>
  45 #include <apt-pkg/pkgrecords.h>
  46 #include <apt-pkg/pkgsystem.h>
  47 #include <apt-pkg/progress.h>
  48 #include <apt-pkg/sourcelist.h>
  49 #include <apt-pkg/srcrecords.h>
  50 #include <apt-pkg/strutl.h>
  51 #include <apt-pkg/version.h>
  52 #include <apt-pkg/acquire.h>
  53 #include <apt-pkg/configuration.h>
  54 #include <apt-pkg/macros.h>
  55 #include <apt-pkg/pkgcache.h>
  56 #include <apt-pkg/cacheiterators.h>
  57 #include <apt-pkg/upgrade.h>
  58 #include <apt-pkg/sptr.h>
  59
  60 #include <apt-private/acqprogress.h>
  61 #include <apt-private/private-cacheset.h>
  62 #include <apt-private/private-cachefile.h>
  63 #include <apt-private/private-cmndline.h>
  64 #include <apt-private/private-download.h>
  65 #include <apt-private/private-install.h>
  66 #include <apt-private/private-main.h>
  67 #include <apt-private/private-moo.h>
  68 #include <apt-private/private-output.h>
  69 #include <apt-private/private-update.h>
  70 #include <apt-private/private-upgrade.h>
  71 #include <apt-private/private-utils.h>
  72 #include <apt-private/private-source.h>
  73
  74 #include <errno.h>
  75 #include <signal.h>
  76 #include <stddef.h>
  77 #include <stdio.h>
  78 #include <stdlib.h>
  79 #include <string.h>
  80 #include <sys/ioctl.h>
  81 #include <sys/stat.h>
  82 #include <unistd.h>
  83 #include <pwd.h>
  84 #include <grp.h>
  85
  86 #include <algorithm>
  87 #include <fstream>
  88 #include <iostream>
  89 #include <sstream>
  90 #include <set>
  91 #include <string>
  92 #include <vector>
  93
  94 #include <apti18n.h>
  95                                                                         /*}}}*/
  96
  97 using namespace std;
  98
  99 /* mark packages as automatically/manually installed.                   {{{*/
 100 static bool DoMarkAuto(CommandLine &CmdL)
 101 {
 102    bool Action = true;
 103    int AutoMarkChanged = 0;
 104    OpTextProgress progress;
 105    CacheFile Cache;
 106    if (Cache.Open() == false)
 107       return false;
 108
 109    if (strcasecmp(CmdL.FileList[0],"markauto") == 0)
 110       Action = true;
 111    else if (strcasecmp(CmdL.FileList[0],"unmarkauto") == 0)
 112       Action = false;
 113
 114    for (const char **I = CmdL.FileList + 1; *I != 0; I++)
 115    {
 116       const char *S = *I;
 117       // Locate the package
 118       pkgCache::PkgIterator Pkg = Cache->FindPkg(S);
 119       if (Pkg.end() == true) {
 120          return _error->Error(_("Couldn't find package %s"),S);
 121       }
 122       else
 123       {
 124          if (!Action)
 125             ioprintf(c1out,_("%s set to manually installed.\n"), Pkg.Name());
 126          else
 127             ioprintf(c1out,_("%s set to automatically installed.\n"),
 128                       Pkg.Name());
 129
 130          Cache->MarkAuto(Pkg,Action);
 131          AutoMarkChanged++;
 132       }
 133    }
 134
 135    _error->Notice(_("This command is deprecated. Please use 'apt-mark auto' and 'apt-mark manual' instead."));
 136
 137    if (AutoMarkChanged && ! _config->FindB("APT::Get::Simulate",false))
 138       return Cache->writeStateFile(NULL);
 139    return false;
 140 }
 141                                                                         /*}}}*/
 142 // DoDSelectUpgrade - Do an upgrade by following dselects selections    /*{{{*/
 143 // ---------------------------------------------------------------------
 144 /* Follows dselect's selections */
 145 static bool DoDSelectUpgrade(CommandLine &)
 146 {
 147    CacheFile Cache;
 148    if (Cache.OpenForInstall() == false || Cache.CheckDeps() == false)
 149       return false;
 150
 151    pkgDepCache::ActionGroup group(Cache);
 152
 153    // Install everything with the install flag set
 154    pkgCache::PkgIterator I = Cache->PkgBegin();
 155    for (;I.end() != true; ++I)
 156    {
 157       /* Install the package only if it is a new install, the autoupgrader
 158          will deal with the rest */
 159       if (I->SelectedState == pkgCache::State::Install)
 160          Cache->MarkInstall(I,false);
 161    }
 162
 163    /* Now install their deps too, if we do this above then order of
 164       the status file is significant for | groups */
 165    for (I = Cache->PkgBegin();I.end() != true; ++I)
 166    {
 167       /* Install the package only if it is a new install, the autoupgrader
 168          will deal with the rest */
 169       if (I->SelectedState == pkgCache::State::Install)
 170          Cache->MarkInstall(I,true);
 171    }
 172
 173    // Apply erasures now, they override everything else.
 174    for (I = Cache->PkgBegin();I.end() != true; ++I)
 175    {
 176       // Remove packages
 177       if (I->SelectedState == pkgCache::State::DeInstall ||
 178           I->SelectedState == pkgCache::State::Purge)
 179          Cache->MarkDelete(I,I->SelectedState == pkgCache::State::Purge);
 180    }
 181
 182    /* Resolve any problems that dselect created, allupgrade cannot handle
 183       such things. We do so quite aggressively too.. */
 184    if (Cache->BrokenCount() != 0)
 185    {
 186       pkgProblemResolver Fix(Cache);
 187
 188       // Hold back held packages.
 189       if (_config->FindB("APT::Ignore-Hold",false) == false)
 190       {
 191          for (pkgCache::PkgIterator I = Cache->PkgBegin(); I.end() == false; ++I)
 192          {
 193             if (I->SelectedState == pkgCache::State::Hold)
 194             {
 195                Fix.Protect(I);
 196                Cache->MarkKeep(I);
 197             }
 198          }
 199       }
 200
 201       if (Fix.Resolve() == false)
 202       {
 203          ShowBroken(c1out,Cache,false);
 204          return _error->Error(_("Internal error, problem resolver broke stuff"));
 205       }
 206    }
 207
 208    // Now upgrade everything
 209    if (APT::Upgrade::Upgrade(Cache, APT::Upgrade::FORBID_REMOVE_PACKAGES | APT::Upgrade::FORBID_INSTALL_NEW_PACKAGES) == false)
 210    {
 211       ShowBroken(c1out,Cache,false);
 212       return _error->Error(_("Internal error, problem resolver broke stuff"));
 213    }
 214
 215    return InstallPackages(Cache,false);
 216 }
 217                                                                         /*}}}*/
 218 // DoCheck - Perform the check operation                                /*{{{*/
 219 // ---------------------------------------------------------------------
 220 /* Opening automatically checks the system, this command is mostly used
 221    for debugging */
 222 static bool DoCheck(CommandLine &)
 223 {
 224    CacheFile Cache;
 225    Cache.Open();
 226    Cache.CheckDeps();
 227
 228    return true;
 229 }
 230                                                                         /*}}}*/
 231 // DoIndexTargets - Lists all IndexTargets                              /*{{{*/
 232 static std::string format_key(std::string key)
 233 {
 234    // deb822 is case-insensitive, but the human eye prefers candy
 235    std::transform(key.begin(), key.end(), key.begin(), ::tolower);
 236    key[0] = ::toupper(key[0]);
 237    size_t found = key.find("_uri");
 238    if (found != std::string::npos)
 239       key.replace(found, 4, "-URI");
 240    while ((found = key.find('_')) != std::string::npos)
 241    {
 242       key[found] = '-';
 243       key[found + 1] = ::toupper(key[found + 1]);
 244    }
 245    return key;
 246 }
 247 static bool DoIndexTargets(CommandLine &CmdL)
 248 {
 249    pkgCacheFile CacheFile;
 250    pkgSourceList *SrcList = CacheFile.GetSourceList();
 251
 252    if (SrcList == NULL)
 253       return false;
 254
 255    std::string const Format = _config->Find("APT::Get::IndexTargets::Format");
 256    bool const ReleaseInfo = _config->FindB("APT::Get::IndexTargets::ReleaseInfo", true);
 257    bool Filtered = CmdL.FileSize() > 1;
 258    for (pkgSourceList::const_iterator S = SrcList->begin(); S != SrcList->end(); ++S)
 259    {
 260       std::vector<IndexTarget> const targets = (*S)->GetIndexTargets();
 261       std::map<std::string, string> AddOptions;
 262       if (ReleaseInfo)
 263       {
 264          AddOptions.insert(std::make_pair("TRUSTED", ((*S)->IsTrusted() ? "yes" : "no")));
 265          pkgCache &Cache = *CacheFile.GetPkgCache();
 266          pkgCache::RlsFileIterator const RlsFile = (*S)->FindInCache(Cache, false);
 267          if (RlsFile.end())
 268             continue;
 269 #define APT_RELEASE(X,Y) if (RlsFile.Y() != NULL) AddOptions.insert(std::make_pair(X, RlsFile.Y()))
 270          APT_RELEASE("CODENAME", Codename);
 271          APT_RELEASE("SUITE", Archive);
 272          APT_RELEASE("VERSION", Version);
 273          APT_RELEASE("ORIGIN", Origin);
 274          APT_RELEASE("LABEL", Label);
 275 #undef APT_RELEASE
 276       }
 277
 278       for (std::vector<IndexTarget>::const_iterator T = targets.begin(); T != targets.end(); ++T)
 279       {
 280          std::string filename = T->Option(ReleaseInfo ? IndexTarget::EXISTING_FILENAME : IndexTarget::FILENAME);
 281          if (filename.empty())
 282             continue;
 283
 284          std::ostringstream stanza;
 285          if (Filtered || Format.empty())
 286          {
 287             stanza << "MetaKey: " << T->MetaKey << "\n"
 288                << "ShortDesc: " << T->ShortDesc << "\n"
 289                << "Description: " << T->Description << "\n"
 290                << "URI: " << T->URI << "\n"
 291                << "Filename: " << filename << "\n"
 292                << "Optional: " << (T->IsOptional ? "yes" : "no") << "\n"
 293                << "KeepCompressed: " << (T->KeepCompressed ? "yes" : "no") << "\n";
 294             for (std::map<std::string,std::string>::const_iterator O = AddOptions.begin(); O != AddOptions.end(); ++O)
 295                stanza << format_key(O->first) << ": " << O->second << "\n";
 296             for (std::map<std::string,std::string>::const_iterator O = T->Options.begin(); O != T->Options.end(); ++O)
 297             {
 298                if (O->first == "PDIFFS")
 299                   stanza << "PDiffs: " << O->second << "\n";
 300                else if (O->first == "COMPRESSIONTYPES")
 301                   stanza << "CompressionTypes: " << O->second << "\n";
 302                else if (O->first == "KEEPCOMPRESSEDAS")
 303                   stanza << "KeepCompressedAs: " << O->second << "\n";
 304                else if (O->first == "DEFAULTENABLED")
 305                   stanza << "DefaultEnabled: " << O->second << "\n";
 306                else
 307                   stanza << format_key(O->first) << ": " << O->second << "\n";
 308             }
 309             stanza << "\n";
 310
 311             if (Filtered)
 312             {
 313                // that is a bit crude, but good enough for now
 314                bool found = true;
 315                std::string haystack = std::string("\n") + stanza.str() + "\n";
 316                std::transform(haystack.begin(), haystack.end(), haystack.begin(), ::tolower);
 317                size_t const filesize = CmdL.FileSize() - 1;
 318                for (size_t i = 0; i != filesize; ++i)
 319                {
 320                   std::string needle = std::string("\n") + CmdL.FileList[i + 1] + "\n";
 321                   std::transform(needle.begin(), needle.end(), needle.begin(), ::tolower);
 322                   if (haystack.find(needle) != std::string::npos)
 323                      continue;
 324                   found = false;
 325                   break;
 326                }
 327                if (found == false)
 328                   continue;
 329             }
 330          }
 331
 332          if (Format.empty())
 333             cout << stanza.str();
 334          else
 335          {
 336             std::string out = SubstVar(Format, "$(FILENAME)", filename);
 337             out = T->Format(out);
 338             for (std::map<std::string,std::string>::const_iterator O = AddOptions.begin(); O != AddOptions.end(); ++O)
 339                out = SubstVar(out, std::string("$(") + O->first + ")", O->second);
 340             cout << out << std::endl;
 341          }
 342       }
 343    }
 344
 345    return true;
 346 }
 347                                                                         /*}}}*/
 348 static bool ShowHelp(CommandLine &)                                     /*{{{*/
 349 {
 350    if (_config->FindB("version") == true)
 351    {
 352       cout << _("Supported modules:") << endl;
 353
 354       for (unsigned I = 0; I != pkgVersioningSystem::GlobalListLen; I++)
 355       {
 356          pkgVersioningSystem *VS = pkgVersioningSystem::GlobalList[I];
 357          if (_system != 0 && _system->VS == VS)
 358             cout << '*';
 359          else
 360             cout << ' ';
 361          cout << "Ver: " << VS->Label << endl;
 362
 363          /* Print out all the packaging systems that will work with
 364             this VS */
 365          for (unsigned J = 0; J != pkgSystem::GlobalListLen; J++)
 366          {
 367             pkgSystem *Sys = pkgSystem::GlobalList[J];
 368             if (_system == Sys)
 369                cout << '*';
 370             else
 371                cout << ' ';
 372             if (Sys->VS->TestCompatibility(*VS) == true)
 373                cout << "Pkg:  " << Sys->Label << " (Priority " << Sys->Score(*_config) << ")" << endl;
 374          }
 375       }
 376
 377       for (unsigned I = 0; I != pkgSourceList::Type::GlobalListLen; I++)
 378       {
 379          pkgSourceList::Type *Type = pkgSourceList::Type::GlobalList[I];
 380          cout << " S.L: '" << Type->Name << "' " << Type->Label << endl;
 381       }
 382
 383       for (unsigned I = 0; I != pkgIndexFile::Type::GlobalListLen; I++)
 384       {
 385          pkgIndexFile::Type *Type = pkgIndexFile::Type::GlobalList[I];
 386          cout << " Idx: " << Type->Label << endl;
 387       }
 388
 389       return true;
 390    }
 391
 392    std::cout <<
 393       _("Usage: apt-get [options] command\n"
 394             "       apt-get [options] install|remove pkg1 [pkg2 ...]\n"
 395             "       apt-get [options] source pkg1 [pkg2 ...]\n"
 396             "\n"
 397             "apt-get is a command line interface for retrieval of packages\n"
 398             "and information about them from authenticated sources and\n"
 399             "for installation, upgrade and removal of packages together\n"
 400             "with their dependencies.\n");
 401    return true;
 402 }
 403                                                                         /*}}}*/
 404 static std::vector<aptDispatchWithHelp> GetCommands()                   /*{{{*/
 405 {
 406    return {
 407       {"update", &DoUpdate, _("Retrieve new lists of packages")},
 408       {"upgrade", &DoUpgrade, _("Perform an upgrade")},
 409       {"install", &DoInstall, _("Install new packages (pkg is libc6 not libc6.deb)")},
 410       {"remove", &DoInstall, _("Remove packages")},
 411       {"purge", &DoInstall, _("Remove packages and config files")},
 412       {"autoremove", &DoInstall, _("Remove automatically all unused packages")},
 413       {"auto-remove", &DoInstall, nullptr},
 414       {"markauto", &DoMarkAuto, nullptr},
 415       {"unmarkauto", &DoMarkAuto, nullptr},
 416       {"dist-upgrade", &DoDistUpgrade, _("Distribution upgrade, see apt-get(8)")},
 417       {"full-upgrade", &DoDistUpgrade, nullptr},
 418       {"dselect-upgrade", &DoDSelectUpgrade, _("Follow dselect selections")},
 419       {"build-dep", &DoBuildDep, _("Configure build-dependencies for source packages")},
 420       {"clean", &DoClean, _("Erase downloaded archive files")},
 421       {"autoclean", &DoAutoClean, _("Erase old downloaded archive files")},
 422       {"auto-clean", &DoAutoClean, nullptr},
 423       {"check", &DoCheck, _("Verify that there are no broken dependencies")},
 424       {"source", &DoSource, _("Download source archives")},
 425       {"download", &DoDownload, _("Download the binary package into the current directory")},
 426       {"changelog", &DoChangelog, _("Download and display the changelog for the given package")},
 427       {"indextargets", &DoIndexTargets, nullptr},
 428       {"moo", &DoMoo, nullptr},
 429       {nullptr, nullptr, nullptr}
 430    };
 431 }
 432                                                                         /*}}}*/
 433 int main(int argc,const char *argv[])                                   /*{{{*/
 434 {
 435    // Parse the command line and initialize the package library
 436    CommandLine CmdL;
 437    auto const Cmds = ParseCommandLine(CmdL, APT_CMD::APT_GET, &_config, &_system, argc, argv, &ShowHelp, &GetCommands);
 438
 439    InitSignals();
 440    InitOutput();
 441
 442    CheckIfSimulateMode(CmdL);
 443
 444    return DispatchCommandLine(CmdL, Cmds);
 445 }
 446                                                                         /*}}}*/