apt-private/private-output.cc

   1 // Include files                                                        /*{{{*/
   2 #include<config.h>
   3
   4 #include <apt-pkg/configuration.h>
   5 #include <apt-pkg/strutl.h>
   6 #include <apt-pkg/error.h>
   7 #include <apt-pkg/cachefile.h>
   8 #include <apt-pkg/pkgrecords.h>
   9 #include <apt-pkg/policy.h>
  10
  11 #include <iomanip>
  12 #include <iostream>
  13 #include <locale.h>
  14 #include <langinfo.h>
  15 #include <unistd.h>
  16
  17 #include "private-output.h"
  18 #include "private-cachefile.h"
  19
  20 #include <apti18n.h>
  21                                                                         /*}}}*/
  22
  23 using namespace std;
  24
  25 std::ostream c0out(0);
  26 std::ostream c1out(0);
  27 std::ostream c2out(0);
  28 std::ofstream devnull("/dev/null");
  29 unsigned int ScreenWidth = 80 - 1; /* - 1 for the cursor */
  30
  31 bool InitOutput()                                                       /*{{{*/
  32 {
  33    if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1)
  34       _config->Set("quiet","1");
  35
  36    c0out.rdbuf(cout.rdbuf());
  37    c1out.rdbuf(cout.rdbuf());
  38    c2out.rdbuf(cout.rdbuf());
  39    if (_config->FindI("quiet",0) > 0)
  40       c0out.rdbuf(devnull.rdbuf());
  41    if (_config->FindI("quiet",0) > 1)
  42       c1out.rdbuf(devnull.rdbuf());
  43
  44    if(!isatty(1))
  45    {
  46       _config->Set("APT::Color", "false");
  47       _config->Set("APT::Color::Highlight", "");
  48       _config->Set("APT::Color::Neutral", "");
  49    } else {
  50       // Colors
  51       _config->CndSet("APT::Color::Highlight", "\x1B[32m");
  52       _config->CndSet("APT::Color::Neutral", "\x1B[0m");
  53
  54       _config->CndSet("APT::Color::Red", "\x1B[31m");
  55       _config->CndSet("APT::Color::Green", "\x1B[32m");
  56       _config->CndSet("APT::Color::Yellow", "\x1B[33m");
  57       _config->CndSet("APT::Color::Blue", "\x1B[34m");
  58       _config->CndSet("APT::Color::Magenta", "\x1B[35m");
  59       _config->CndSet("APT::Color::Cyan", "\x1B[36m");
  60       _config->CndSet("APT::Color::White", "\x1B[37m");
  61    }
  62
  63    return true;
  64 }
  65                                                                         /*}}}*/
  66 static std::string GetArchiveSuite(pkgCacheFile &CacheFile, pkgCache::VerIterator ver) /*{{{*/
  67 {
  68    std::string suite = "";
  69    if (ver && ver.FileList() && ver.FileList())
  70    {
  71       pkgCache::VerFileIterator VF = ver.FileList();
  72       for (; VF.end() == false ; ++VF)
  73       {
  74          if(VF.File() == NULL || VF.File().Archive() == NULL)
  75             suite = suite + "," + _("unknown");
  76          else
  77             suite = suite + "," + VF.File().Archive();
  78          //suite = VF.File().Archive();
  79       }
  80       suite = suite.erase(0, 1);
  81    }
  82    return suite;
  83 }
  84                                                                         /*}}}*/
  85 static std::string GetFlagsStr(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/
  86 {
  87    pkgDepCache *DepCache = CacheFile.GetDepCache();
  88    pkgDepCache::StateCache &state = (*DepCache)[P];
  89
  90    std::string flags_str;
  91    if (state.NowBroken())
  92       flags_str = "B";
  93    if (P.CurrentVer() && state.Upgradable())
  94       flags_str = "g";
  95    else if (P.CurrentVer() != NULL)
  96       flags_str = "i";
  97    else
  98       flags_str = "-";
  99    return flags_str;
 100 }
 101                                                                         /*}}}*/
 102 static std::string GetCandidateVersion(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/
 103 {
 104    pkgPolicy *policy = CacheFile.GetPolicy();
 105    pkgCache::VerIterator cand = policy->GetCandidateVer(P);
 106
 107    return cand ? cand.VerStr() : "(none)";
 108 }
 109                                                                         /*}}}*/
 110 static std::string GetInstalledVersion(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/
 111 {
 112    pkgCache::VerIterator inst = P.CurrentVer();
 113
 114    return inst ? inst.VerStr() : "(none)";
 115 }
 116                                                                         /*}}}*/
 117 static std::string GetVersion(pkgCacheFile &CacheFile, pkgCache::VerIterator V)/*{{{*/
 118 {
 119    pkgCache::PkgIterator P = V.ParentPkg();
 120    if (V == P.CurrentVer())
 121    {
 122       std::string inst_str = DeNull(V.VerStr());
 123 #if 0 // FIXME: do we want this or something like this?
 124       pkgDepCache *DepCache = CacheFile.GetDepCache();
 125       pkgDepCache::StateCache &state = (*DepCache)[P];
 126       if (state.Upgradable())
 127          return "**"+inst_str;
 128 #endif
 129       return inst_str;
 130    }
 131
 132    if(V)
 133       return DeNull(V.VerStr());
 134    return "(none)";
 135 }
 136                                                                         /*}}}*/
 137 static std::string GetArchitecture(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/
 138 {
 139    pkgPolicy *policy = CacheFile.GetPolicy();
 140    pkgCache::VerIterator inst = P.CurrentVer();
 141    pkgCache::VerIterator cand = policy->GetCandidateVer(P);
 142
 143    return inst ? inst.Arch() : cand.Arch();
 144 }
 145                                                                         /*}}}*/
 146 static std::string GetShortDescription(pkgCacheFile &CacheFile, pkgRecords &records, pkgCache::PkgIterator P)/*{{{*/
 147 {
 148    pkgPolicy *policy = CacheFile.GetPolicy();
 149
 150    pkgCache::VerIterator ver;
 151    if (P.CurrentVer())
 152       ver = P.CurrentVer();
 153    else
 154       ver = policy->GetCandidateVer(P);
 155
 156    std::string ShortDescription = "(none)";
 157    if(ver)
 158    {
 159       pkgCache::DescIterator Desc = ver.TranslatedDescription();
 160       pkgRecords::Parser & parser = records.Lookup(Desc.FileList());
 161
 162       ShortDescription = parser.ShortDesc();
 163    }
 164    return ShortDescription;
 165 }
 166                                                                         /*}}}*/
 167 void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records,    /*{{{*/
 168                        pkgCache::VerIterator V, std::ostream &out,
 169                        bool include_summary)
 170 {
 171    pkgCache::PkgIterator P = V.ParentPkg();
 172
 173    pkgDepCache *DepCache = CacheFile.GetDepCache();
 174    pkgDepCache::StateCache &state = (*DepCache)[P];
 175
 176    std::string suite = GetArchiveSuite(CacheFile, V);
 177    std::string name_str = P.Name();
 178
 179    if (_config->FindB("APT::Cmd::use-format", false))
 180    {
 181       std::string format = _config->Find("APT::Cmd::format", "${db::Status-Abbrev} ${Package} ${Version} ${Origin} ${Description}");
 182       std::string output = format;
 183
 184       output = SubstVar(output, "${db::Status-Abbrev}", GetFlagsStr(CacheFile, P));
 185       output = SubstVar(output, "${Package}", name_str);
 186       output = SubstVar(output, "${installed:Version}", GetInstalledVersion(CacheFile, P));
 187       output = SubstVar(output, "${candidate:Version}", GetCandidateVersion(CacheFile, P));
 188       output = SubstVar(output, "${Version}", GetVersion(CacheFile, V));
 189       output = SubstVar(output, "${Description}", GetShortDescription(CacheFile, records, P));
 190       output = SubstVar(output, "${Origin}", GetArchiveSuite(CacheFile, V));
 191       out << output << std::endl;
 192    } else {
 193       // raring/linux-kernel version [upradable: new-version]
 194       //    description
 195       pkgPolicy *policy = CacheFile.GetPolicy();
 196       std::string VersionStr = GetVersion(CacheFile, V);
 197       std::string CandidateVerStr = GetCandidateVersion(CacheFile, P);
 198       std::string InstalledVerStr = GetInstalledVersion(CacheFile, P);
 199       std::string StatusStr;
 200       if(P.CurrentVer() == V && state.Upgradable()) {
 201          strprintf(StatusStr, _("[installed,upgradable to: %s]"),
 202                    CandidateVerStr.c_str());
 203       } else if (P.CurrentVer() == V) {
 204          if(!V.Downloadable())
 205             StatusStr = _("[installed,local]");
 206          else
 207             if(V.Automatic() && state.Garbage)
 208                StatusStr = _("[installed,auto-removable]");
 209             else if (state.Flags & pkgCache::Flag::Auto)
 210                StatusStr = _("[installed,automatic]");
 211             else
 212                StatusStr = _("[installed]");
 213       } else if (P.CurrentVer() &&
 214                  policy->GetCandidateVer(P) == V &&
 215                  state.Upgradable()) {
 216             strprintf(StatusStr, _("[upgradable from: %s]"),
 217                       InstalledVerStr.c_str());
 218       } else {
 219          if (V.ParentPkg()->CurrentState == pkgCache::State::ConfigFiles)
 220             StatusStr = _("[residual-config]");
 221          else
 222             StatusStr = "";
 223       }
 224       out << std::setiosflags(std::ios::left)
 225           << _config->Find("APT::Color::Highlight", "")
 226           << name_str
 227           << _config->Find("APT::Color::Neutral", "")
 228           << "/" << suite
 229           << " "
 230           << VersionStr << " "
 231           << GetArchitecture(CacheFile, P);
 232       if (StatusStr != "")
 233          out << " " << StatusStr;
 234       if (include_summary)
 235       {
 236          out << std::endl
 237              << "  " << GetShortDescription(CacheFile, records, P)
 238              << std::endl;
 239       }
 240    }
 241 }
 242                                                                         /*}}}*/
 243 // ShowList - Show a list                                               /*{{{*/
 244 // ---------------------------------------------------------------------
 245 /* This prints out a string of space separated words with a title and
 246    a two space indent line wraped to the current screen width. */
 247 bool ShowList(ostream &out,string Title,string List,string VersionsList)
 248 {
 249    if (List.empty() == true)
 250       return true;
 251    // trim trailing space
 252    int NonSpace = List.find_last_not_of(' ');
 253    if (NonSpace != -1)
 254    {
 255       List = List.erase(NonSpace + 1);
 256       if (List.empty() == true)
 257          return true;
 258    }
 259
 260    // Acount for the leading space
 261    int ScreenWidth = ::ScreenWidth - 3;
 262
 263    out << Title << endl;
 264    string::size_type Start = 0;
 265    string::size_type VersionsStart = 0;
 266    while (Start < List.size())
 267    {
 268       if(_config->FindB("APT::Get::Show-Versions",false) == true &&
 269          VersionsList.size() > 0) {
 270          string::size_type End;
 271          string::size_type VersionsEnd;
 272
 273          End = List.find(' ',Start);
 274          VersionsEnd = VersionsList.find('\n', VersionsStart);
 275
 276          out << "   " << string(List,Start,End - Start) << " (" <<
 277             string(VersionsList,VersionsStart,VersionsEnd - VersionsStart) <<
 278             ")" << endl;
 279
 280          if (End == string::npos || End < Start)
 281             End = Start + ScreenWidth;
 282
 283          Start = End + 1;
 284          VersionsStart = VersionsEnd + 1;
 285       } else {
 286          string::size_type End;
 287
 288          if (Start + ScreenWidth >= List.size())
 289             End = List.size();
 290          else
 291             End = List.rfind(' ',Start+ScreenWidth);
 292
 293          if (End == string::npos || End < Start)
 294             End = Start + ScreenWidth;
 295          out << "  " << string(List,Start,End - Start) << endl;
 296          Start = End + 1;
 297       }
 298    }
 299
 300    return false;
 301 }
 302                                                                         /*}}}*/
 303 // ShowBroken - Debugging aide                                          /*{{{*/
 304 // ---------------------------------------------------------------------
 305 /* This prints out the names of all the packages that are broken along
 306    with the name of each each broken dependency and a quite version
 307    description.
 308
 309    The output looks like:
 310  The following packages have unmet dependencies:
 311      exim: Depends: libc6 (>= 2.1.94) but 2.1.3-10 is to be installed
 312            Depends: libldap2 (>= 2.0.2-2) but it is not going to be installed
 313            Depends: libsasl7 but it is not going to be installed
 314  */
 315 void ShowBroken(ostream &out,CacheFile &Cache,bool Now)
 316 {
 317    if (Cache->BrokenCount() == 0)
 318       return;
 319
 320    out << _("The following packages have unmet dependencies:") << endl;
 321    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 322    {
 323       pkgCache::PkgIterator I(Cache,Cache.List[J]);
 324
 325       if (Now == true)
 326       {
 327          if (Cache[I].NowBroken() == false)
 328             continue;
 329       }
 330       else
 331       {
 332          if (Cache[I].InstBroken() == false)
 333             continue;
 334       }
 335
 336       // Print out each package and the failed dependencies
 337       out << " " << I.FullName(true) << " :";
 338       unsigned const Indent = I.FullName(true).size() + 3;
 339       bool First = true;
 340       pkgCache::VerIterator Ver;
 341
 342       if (Now == true)
 343          Ver = I.CurrentVer();
 344       else
 345          Ver = Cache[I].InstVerIter(Cache);
 346
 347       if (Ver.end() == true)
 348       {
 349          out << endl;
 350          continue;
 351       }
 352
 353       for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false;)
 354       {
 355          // Compute a single dependency element (glob or)
 356          pkgCache::DepIterator Start;
 357          pkgCache::DepIterator End;
 358          D.GlobOr(Start,End); // advances D
 359
 360          if (Cache->IsImportantDep(End) == false)
 361             continue;
 362
 363          if (Now == true)
 364          {
 365             if ((Cache[End] & pkgDepCache::DepGNow) == pkgDepCache::DepGNow)
 366                continue;
 367          }
 368          else
 369          {
 370             if ((Cache[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall)
 371                continue;
 372          }
 373
 374          bool FirstOr = true;
 375          while (1)
 376          {
 377             if (First == false)
 378                for (unsigned J = 0; J != Indent; J++)
 379                   out << ' ';
 380             First = false;
 381
 382             if (FirstOr == false)
 383             {
 384                for (unsigned J = 0; J != strlen(End.DepType()) + 3; J++)
 385                   out << ' ';
 386             }
 387             else
 388                out << ' ' << End.DepType() << ": ";
 389             FirstOr = false;
 390
 391             out << Start.TargetPkg().FullName(true);
 392
 393             // Show a quick summary of the version requirements
 394             if (Start.TargetVer() != 0)
 395                out << " (" << Start.CompType() << " " << Start.TargetVer() << ")";
 396
 397             /* Show a summary of the target package if possible. In the case
 398                of virtual packages we show nothing */
 399             pkgCache::PkgIterator Targ = Start.TargetPkg();
 400             if (Targ->ProvidesList == 0)
 401             {
 402                out << ' ';
 403                pkgCache::VerIterator Ver = Cache[Targ].InstVerIter(Cache);
 404                if (Now == true)
 405                   Ver = Targ.CurrentVer();
 406
 407                if (Ver.end() == false)
 408                {
 409                   if (Now == true)
 410                      ioprintf(out,_("but %s is installed"),Ver.VerStr());
 411                   else
 412                      ioprintf(out,_("but %s is to be installed"),Ver.VerStr());
 413                }
 414                else
 415                {
 416                   if (Cache[Targ].CandidateVerIter(Cache).end() == true)
 417                   {
 418                      if (Targ->ProvidesList == 0)
 419                         out << _("but it is not installable");
 420                      else
 421                         out << _("but it is a virtual package");
 422                   }
 423                   else
 424                      out << (Now?_("but it is not installed"):_("but it is not going to be installed"));
 425                }
 426             }
 427
 428             if (Start != End)
 429                out << _(" or");
 430             out << endl;
 431
 432             if (Start == End)
 433                break;
 434             ++Start;
 435          }
 436       }
 437    }
 438 }
 439                                                                         /*}}}*/
 440 // ShowNew - Show packages to newly install                             /*{{{*/
 441 // ---------------------------------------------------------------------
 442 /* */
 443 void ShowNew(ostream &out,CacheFile &Cache)
 444 {
 445    /* Print out a list of packages that are going to be installed extra
 446       to what the user asked */
 447    string List;
 448    string VersionsList;
 449    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 450    {
 451       pkgCache::PkgIterator I(Cache,Cache.List[J]);
 452       if (Cache[I].NewInstall() == true) {
 453          List += I.FullName(true) + " ";
 454          VersionsList += string(Cache[I].CandVersion) + "\n";
 455       }
 456    }
 457
 458    ShowList(out,_("The following NEW packages will be installed:"),List,VersionsList);
 459 }
 460                                                                         /*}}}*/
 461 // ShowDel - Show packages to delete                                    /*{{{*/
 462 // ---------------------------------------------------------------------
 463 /* */
 464 void ShowDel(ostream &out,CacheFile &Cache)
 465 {
 466    /* Print out a list of packages that are going to be removed extra
 467       to what the user asked */
 468    string List;
 469    string VersionsList;
 470    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 471    {
 472       pkgCache::PkgIterator I(Cache,Cache.List[J]);
 473       if (Cache[I].Delete() == true)
 474       {
 475          if ((Cache[I].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge)
 476             List += I.FullName(true) + "* ";
 477          else
 478             List += I.FullName(true) + " ";
 479
 480      VersionsList += string(Cache[I].CandVersion)+ "\n";
 481       }
 482    }
 483
 484    ShowList(out,_("The following packages will be REMOVED:"),List,VersionsList);
 485 }
 486                                                                         /*}}}*/
 487 // ShowKept - Show kept packages                                        /*{{{*/
 488 // ---------------------------------------------------------------------
 489 /* */
 490 void ShowKept(ostream &out,CacheFile &Cache)
 491 {
 492    string List;
 493    string VersionsList;
 494    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 495    {
 496       pkgCache::PkgIterator I(Cache,Cache.List[J]);
 497
 498       // Not interesting
 499       if (Cache[I].Upgrade() == true || Cache[I].Upgradable() == false ||
 500           I->CurrentVer == 0 || Cache[I].Delete() == true)
 501          continue;
 502
 503       List += I.FullName(true) + " ";
 504       VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
 505    }
 506    ShowList(out,_("The following packages have been kept back:"),List,VersionsList);
 507 }
 508                                                                         /*}}}*/
 509 // ShowUpgraded - Show upgraded packages                                /*{{{*/
 510 // ---------------------------------------------------------------------
 511 /* */
 512 void ShowUpgraded(ostream &out,CacheFile &Cache)
 513 {
 514    string List;
 515    string VersionsList;
 516    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 517    {
 518       pkgCache::PkgIterator I(Cache,Cache.List[J]);
 519
 520       // Not interesting
 521       if (Cache[I].Upgrade() == false || Cache[I].NewInstall() == true)
 522          continue;
 523
 524       List += I.FullName(true) + " ";
 525       VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
 526    }
 527    ShowList(out,_("The following packages will be upgraded:"),List,VersionsList);
 528 }
 529                                                                         /*}}}*/
 530 // ShowDowngraded - Show downgraded packages                            /*{{{*/
 531 // ---------------------------------------------------------------------
 532 /* */
 533 bool ShowDowngraded(ostream &out,CacheFile &Cache)
 534 {
 535    string List;
 536    string VersionsList;
 537    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 538    {
 539       pkgCache::PkgIterator I(Cache,Cache.List[J]);
 540
 541       // Not interesting
 542       if (Cache[I].Downgrade() == false || Cache[I].NewInstall() == true)
 543          continue;
 544
 545       List += I.FullName(true) + " ";
 546       VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
 547    }
 548    return ShowList(out,_("The following packages will be DOWNGRADED:"),List,VersionsList);
 549 }
 550                                                                         /*}}}*/
 551 // ShowHold - Show held but changed packages                            /*{{{*/
 552 // ---------------------------------------------------------------------
 553 /* */
 554 bool ShowHold(ostream &out,CacheFile &Cache)
 555 {
 556    string List;
 557    string VersionsList;
 558    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 559    {
 560       pkgCache::PkgIterator I(Cache,Cache.List[J]);
 561       if (Cache[I].InstallVer != (pkgCache::Version *)I.CurrentVer() &&
 562           I->SelectedState == pkgCache::State::Hold) {
 563          List += I.FullName(true) + " ";
 564                  VersionsList += string(Cache[I].CurVersion) + " => " + Cache[I].CandVersion + "\n";
 565       }
 566    }
 567
 568    return ShowList(out,_("The following held packages will be changed:"),List,VersionsList);
 569 }
 570                                                                         /*}}}*/
 571 // ShowEssential - Show an essential package warning                    /*{{{*/
 572 // ---------------------------------------------------------------------
 573 /* This prints out a warning message that is not to be ignored. It shows
 574    all essential packages and their dependents that are to be removed.
 575    It is insanely risky to remove the dependents of an essential package! */
 576 bool ShowEssential(ostream &out,CacheFile &Cache)
 577 {
 578    string List;
 579    string VersionsList;
 580    bool *Added = new bool[Cache->Head().PackageCount];
 581    for (unsigned int I = 0; I != Cache->Head().PackageCount; I++)
 582       Added[I] = false;
 583
 584    for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
 585    {
 586       pkgCache::PkgIterator I(Cache,Cache.List[J]);
 587       if ((I->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential &&
 588           (I->Flags & pkgCache::Flag::Important) != pkgCache::Flag::Important)
 589          continue;
 590
 591       // The essential package is being removed
 592       if (Cache[I].Delete() == true)
 593       {
 594          if (Added[I->ID] == false)
 595          {
 596             Added[I->ID] = true;
 597             List += I.FullName(true) + " ";
 598         //VersionsList += string(Cache[I].CurVersion) + "\n"; ???
 599          }
 600       }
 601       else
 602          continue;
 603
 604       if (I->CurrentVer == 0)
 605          continue;
 606
 607       // Print out any essential package depenendents that are to be removed
 608       for (pkgCache::DepIterator D = I.CurrentVer().DependsList(); D.end() == false; ++D)
 609       {
 610          // Skip everything but depends
 611          if (D->Type != pkgCache::Dep::PreDepends &&
 612              D->Type != pkgCache::Dep::Depends)
 613             continue;
 614
 615          pkgCache::PkgIterator P = D.SmartTargetPkg();
 616          if (Cache[P].Delete() == true)
 617          {
 618             if (Added[P->ID] == true)
 619                continue;
 620             Added[P->ID] = true;
 621
 622             char S[300];
 623             snprintf(S,sizeof(S),_("%s (due to %s) "),P.FullName(true).c_str(),I.FullName(true).c_str());
 624             List += S;
 625         //VersionsList += "\n"; ???
 626          }
 627       }
 628    }
 629
 630    delete [] Added;
 631    return ShowList(out,_("WARNING: The following essential packages will be removed.\n"
 632                          "This should NOT be done unless you know exactly what you are doing!"),List,VersionsList);
 633 }
 634
 635                                                                         /*}}}*/
 636 // Stats - Show some statistics                                         /*{{{*/
 637 // ---------------------------------------------------------------------
 638 /* */
 639 void Stats(ostream &out,pkgDepCache &Dep)
 640 {
 641    unsigned long Upgrade = 0;
 642    unsigned long Downgrade = 0;
 643    unsigned long Install = 0;
 644    unsigned long ReInstall = 0;
 645    for (pkgCache::PkgIterator I = Dep.PkgBegin(); I.end() == false; ++I)
 646    {
 647       if (Dep[I].NewInstall() == true)
 648          Install++;
 649       else
 650       {
 651          if (Dep[I].Upgrade() == true)
 652             Upgrade++;
 653          else
 654             if (Dep[I].Downgrade() == true)
 655                Downgrade++;
 656       }
 657
 658       if (Dep[I].Delete() == false && (Dep[I].iFlags & pkgDepCache::ReInstall) == pkgDepCache::ReInstall)
 659          ReInstall++;
 660    }
 661
 662    ioprintf(out,_("%lu upgraded, %lu newly installed, "),
 663             Upgrade,Install);
 664
 665    if (ReInstall != 0)
 666       ioprintf(out,_("%lu reinstalled, "),ReInstall);
 667    if (Downgrade != 0)
 668       ioprintf(out,_("%lu downgraded, "),Downgrade);
 669
 670    ioprintf(out,_("%lu to remove and %lu not upgraded.\n"),
 671             Dep.DelCount(),Dep.KeepCount());
 672
 673    if (Dep.BadCount() != 0)
 674       ioprintf(out,_("%lu not fully installed or removed.\n"),
 675                Dep.BadCount());
 676 }
 677                                                                         /*}}}*/
 678 // YnPrompt - Yes No Prompt.                                            /*{{{*/
 679 // ---------------------------------------------------------------------
 680 /* Returns true on a Yes.*/
 681 bool YnPrompt(bool Default)
 682 {
 683    /* nl_langinfo does not support LANGUAGE setting, so we unset it here
 684       to have the help-message (hopefully) match the expected characters */
 685    char * language = getenv("LANGUAGE");
 686    if (language != NULL)
 687       language = strdup(language);
 688    if (language != NULL)
 689       unsetenv("LANGUAGE");
 690
 691    if (Default == true)
 692       // TRANSLATOR: Yes/No question help-text: defaulting to Y[es]
 693       //             e.g. "Do you want to continue? [Y/n] "
 694       //             The user has to answer with an input matching the
 695       //             YESEXPR/NOEXPR defined in your l10n.
 696       c2out << " " << _("[Y/n]") << " " << std::flush;
 697    else
 698       // TRANSLATOR: Yes/No question help-text: defaulting to N[o]
 699       //             e.g. "Should this file be removed? [y/N] "
 700       //             The user has to answer with an input matching the
 701       //             YESEXPR/NOEXPR defined in your l10n.
 702       c2out << " " << _("[y/N]") << " " << std::flush;
 703
 704    if (language != NULL)
 705    {
 706       setenv("LANGUAGE", language, 0);
 707       free(language);
 708    }
 709
 710    if (_config->FindB("APT::Get::Assume-Yes",false) == true)
 711    {
 712       // TRANSLATOR: "Yes" answer printed for a yes/no question if --assume-yes is set
 713       c1out << _("Y") << std::endl;
 714       return true;
 715    }
 716    else if (_config->FindB("APT::Get::Assume-No",false) == true)
 717    {
 718       // TRANSLATOR: "No" answer printed for a yes/no question if --assume-no is set
 719       c1out << _("N") << std::endl;
 720       return false;
 721    }
 722
 723    char response[1024] = "";
 724    std::cin.getline(response, sizeof(response));
 725
 726    if (!std::cin)
 727       return false;
 728
 729    if (strlen(response) == 0)
 730       return Default;
 731
 732    regex_t Pattern;
 733    int Res;
 734
 735    Res = regcomp(&Pattern, nl_langinfo(YESEXPR),
 736                  REG_EXTENDED|REG_ICASE|REG_NOSUB);
 737
 738    if (Res != 0) {
 739       char Error[300];
 740       regerror(Res,&Pattern,Error,sizeof(Error));
 741       return _error->Error(_("Regex compilation error - %s"),Error);
 742    }
 743
 744    Res = regexec(&Pattern, response, 0, NULL, 0);
 745    if (Res == 0)
 746       return true;
 747    return false;
 748 }
 749                                                                         /*}}}*/
 750 // AnalPrompt - Annoying Yes No Prompt.                                 /*{{{*/
 751 // ---------------------------------------------------------------------
 752 /* Returns true on a Yes.*/
 753 bool AnalPrompt(const char *Text)
 754 {
 755    char Buf[1024];
 756    std::cin.getline(Buf,sizeof(Buf));
 757    if (strcmp(Buf,Text) == 0)
 758       return true;
 759    return false;
 760 }
 761                                                                         /*}}}*/