cmdline/apt-mark.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /* #####################################################################
   4    apt-mark - show and change auto-installed bit information
   5    ##################################################################### */
   6                                                                         /*}}}*/
   7 // Include Files                                                        /*{{{*/
   8 #include <config.h>
   9
  10 #include <apt-pkg/cachefile.h>
  11 #include <apt-pkg/cacheset.h>
  12 #include <apt-pkg/cmndline.h>
  13 #include <apt-pkg/error.h>
  14 #include <apt-pkg/fileutl.h>
  15 #include <apt-pkg/init.h>
  16 #include <apt-pkg/pkgsystem.h>
  17 #include <apt-pkg/strutl.h>
  18 #include <apt-pkg/statechanges.h>
  19 #include <apt-pkg/cacheiterators.h>
  20 #include <apt-pkg/configuration.h>
  21 #include <apt-pkg/depcache.h>
  22 #include <apt-pkg/macros.h>
  23 #include <apt-pkg/pkgcache.h>
  24
  25 #include <apt-private/private-cmndline.h>
  26 #include <apt-private/private-output.h>
  27
  28 #include <errno.h>
  29 #include <fcntl.h>
  30 #include <stddef.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <string.h>
  34 #include <sys/wait.h>
  35 #include <unistd.h>
  36 #include <algorithm>
  37 #include <fstream>
  38 #include <iostream>
  39 #include <string>
  40 #include <vector>
  41
  42 #include <apti18n.h>
  43                                                                         /*}}}*/
  44 using namespace std;
  45
  46 /* DoAuto - mark packages as automatically/manually installed           {{{*/
  47 static bool DoAuto(CommandLine &CmdL)
  48 {
  49    pkgCacheFile CacheFile;
  50    pkgCache *Cache = CacheFile.GetPkgCache();
  51    pkgDepCache *DepCache = CacheFile.GetDepCache();
  52    if (unlikely(Cache == NULL || DepCache == NULL))
  53       return false;
  54
  55    APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1);
  56    if (pkgset.empty() == true)
  57       return _error->Error(_("No packages found"));
  58
  59    bool MarkAuto = strcasecmp(CmdL.FileList[0],"auto") == 0;
  60    int AutoMarkChanged = 0;
  61
  62    for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
  63    {
  64       if (Pkg->CurrentVer == 0)
  65       {
  66          ioprintf(c1out,_("%s can not be marked as it is not installed.\n"), Pkg.FullName(true).c_str());
  67          continue;
  68       }
  69       else if ((((*DepCache)[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == MarkAuto)
  70       {
  71          if (MarkAuto == false)
  72             ioprintf(c1out,_("%s was already set to manually installed.\n"), Pkg.FullName(true).c_str());
  73          else
  74             ioprintf(c1out,_("%s was already set to automatically installed.\n"), Pkg.FullName(true).c_str());
  75          continue;
  76       }
  77
  78       if (MarkAuto == false)
  79          ioprintf(c1out,_("%s set to manually installed.\n"), Pkg.FullName(true).c_str());
  80       else
  81          ioprintf(c1out,_("%s set to automatically installed.\n"), Pkg.FullName(true).c_str());
  82
  83       DepCache->MarkAuto(Pkg, MarkAuto);
  84       ++AutoMarkChanged;
  85    }
  86    if (AutoMarkChanged > 0 && _config->FindB("APT::Mark::Simulate", false) == false)
  87       return DepCache->writeStateFile(NULL);
  88    return true;
  89 }
  90                                                                         /*}}}*/
  91 /* DoMarkAuto - mark packages as automatically/manually installed       {{{*/
  92 /* Does the same as DoAuto but tries to do it exactly the same why as
  93    the python implementation did it so it can be a drop-in replacement */
  94 static bool DoMarkAuto(CommandLine &CmdL)
  95 {
  96    pkgCacheFile CacheFile;
  97    pkgCache *Cache = CacheFile.GetPkgCache();
  98    pkgDepCache *DepCache = CacheFile.GetDepCache();
  99    if (unlikely(Cache == NULL || DepCache == NULL))
 100       return false;
 101
 102    APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1);
 103    if (pkgset.empty() == true)
 104       return _error->Error(_("No packages found"));
 105
 106    bool const MarkAuto = strcasecmp(CmdL.FileList[0],"markauto") == 0;
 107    bool const Verbose = _config->FindB("APT::MarkAuto::Verbose", false);
 108    int AutoMarkChanged = 0;
 109
 110    for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg)
 111    {
 112       if (Pkg->CurrentVer == 0 ||
 113           (((*DepCache)[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == MarkAuto)
 114          continue;
 115
 116       if (Verbose == true)
 117          ioprintf(c1out, "changing %s to %d\n", Pkg.Name(), (MarkAuto == false) ? 0 : 1);
 118
 119       DepCache->MarkAuto(Pkg, MarkAuto);
 120       ++AutoMarkChanged;
 121    }
 122    if (AutoMarkChanged > 0 && _config->FindB("APT::Mark::Simulate", false) == false)
 123       return DepCache->writeStateFile(NULL);
 124
 125    _error->Notice(_("This command is deprecated. Please use 'apt-mark auto' and 'apt-mark manual' instead."));
 126
 127    return true;
 128 }
 129                                                                         /*}}}*/
 130 /* ShowAuto - show automatically installed packages (sorted)            {{{*/
 131 static bool ShowAuto(CommandLine &CmdL)
 132 {
 133    pkgCacheFile CacheFile;
 134    pkgCache *Cache = CacheFile.GetPkgCache();
 135    pkgDepCache *DepCache = CacheFile.GetDepCache();
 136    if (unlikely(Cache == NULL || DepCache == NULL))
 137       return false;
 138
 139    std::vector<string> packages;
 140
 141    bool const ShowAuto = strcasecmp(CmdL.FileList[0],"showauto") == 0;
 142
 143    if (CmdL.FileList[1] == 0)
 144    {
 145       packages.reserve(Cache->HeaderP->PackageCount / 3);
 146       for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
 147          if (P->CurrentVer != 0 &&
 148              (((*DepCache)[P].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == ShowAuto)
 149             packages.push_back(P.FullName(true));
 150    }
 151    else
 152    {
 153       APT::CacheSetHelper helper(false); // do not show errors
 154       APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1, helper);
 155       packages.reserve(pkgset.size());
 156       for (APT::PackageSet::const_iterator P = pkgset.begin(); P != pkgset.end(); ++P)
 157          if (P->CurrentVer != 0 &&
 158              (((*DepCache)[P].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) == ShowAuto)
 159             packages.push_back(P.FullName(true));
 160    }
 161
 162    std::sort(packages.begin(), packages.end());
 163
 164    for (vector<string>::const_iterator I = packages.begin(); I != packages.end(); ++I)
 165       std::cout << *I << std::endl;
 166
 167    return true;
 168 }
 169                                                                         /*}}}*/
 170 /* DoHold - mark packages as hold by dpkg                               {{{*/
 171 static bool DoHold(CommandLine &CmdL)
 172 {
 173    pkgCacheFile CacheFile;
 174    pkgCache *Cache = CacheFile.GetPkgCache();
 175    if (unlikely(Cache == NULL))
 176       return false;
 177
 178    APT::VersionVector pkgset = APT::VersionVector::FromCommandLine(CacheFile, CmdL.FileList + 1, APT::CacheSetHelper::INSTCAND);
 179    if (pkgset.empty() == true)
 180       return _error->Error(_("No packages found"));
 181
 182    bool const MarkHold = strcasecmp(CmdL.FileList[0],"hold") == 0;
 183
 184    auto const part = std::stable_partition(pkgset.begin(), pkgset.end(),
 185         [](pkgCache::VerIterator const &V) { return V.ParentPkg()->SelectedState == pkgCache::State::Hold; });
 186
 187    auto const doneBegin = MarkHold ? pkgset.begin() : part;
 188    auto const doneEnd = MarkHold ? part : pkgset.end();
 189
 190    std::for_each(doneBegin, doneEnd, [&MarkHold](pkgCache::VerIterator const &V) {
 191       if (MarkHold == true)
 192         ioprintf(c1out, _("%s was already set on hold.\n"), V.ParentPkg().FullName(true).c_str());
 193       else
 194         ioprintf(c1out, _("%s was already not hold.\n"), V.ParentPkg().FullName(true).c_str());
 195    });
 196
 197    if (doneBegin == pkgset.begin() && doneEnd == pkgset.end())
 198       return true;
 199
 200    auto const changeBegin = MarkHold ? part : pkgset.begin();
 201    auto const changeEnd = MarkHold ? pkgset.end() : part;
 202
 203    APT::StateChanges marks;
 204    std::move(changeBegin, changeEnd, std::back_inserter(MarkHold ? marks.Hold() : marks.Unhold()));
 205    pkgset.clear();
 206
 207    bool success = true;
 208    if (_config->FindB("APT::Mark::Simulate", false) == false)
 209    {
 210       success = marks.Save();
 211       if (success == false)
 212          _error->Error(_("Executing dpkg failed. Are you root?"));
 213    }
 214
 215    for (auto Ver : marks.Hold())
 216       ioprintf(c1out,_("%s set on hold.\n"), Ver.ParentPkg().FullName(true).c_str());
 217    for (auto Ver : marks.Unhold())
 218       ioprintf(c1out,_("Canceled hold on %s.\n"), Ver.ParentPkg().FullName(true).c_str());
 219
 220    return success;
 221 }
 222                                                                         /*}}}*/
 223 /* ShowHold - show packages set on hold in dpkg status                  {{{*/
 224 static bool ShowHold(CommandLine &CmdL)
 225 {
 226    pkgCacheFile CacheFile;
 227    pkgCache *Cache = CacheFile.GetPkgCache();
 228    if (unlikely(Cache == NULL))
 229       return false;
 230
 231    std::vector<string> packages;
 232
 233    if (CmdL.FileList[1] == 0)
 234    {
 235       packages.reserve(50); // how many holds are realistic? I hope just a few…
 236       for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
 237          if (P->SelectedState == pkgCache::State::Hold)
 238             packages.push_back(P.FullName(true));
 239    }
 240    else
 241    {
 242       APT::CacheSetHelper helper(false); // do not show errors
 243       APT::PackageSet pkgset = APT::PackageSet::FromCommandLine(CacheFile, CmdL.FileList + 1, helper);
 244       packages.reserve(pkgset.size());
 245       for (APT::PackageSet::const_iterator P = pkgset.begin(); P != pkgset.end(); ++P)
 246          if (P->SelectedState == pkgCache::State::Hold)
 247             packages.push_back(P.FullName(true));
 248    }
 249
 250    std::sort(packages.begin(), packages.end());
 251
 252    for (vector<string>::const_iterator I = packages.begin(); I != packages.end(); ++I)
 253       std::cout << *I << std::endl;
 254
 255    return true;
 256 }
 257                                                                         /*}}}*/
 258 // ShowHelp - Show a help screen                                        /*{{{*/
 259 // ---------------------------------------------------------------------
 260 /* */
 261 static bool ShowHelp(CommandLine &)
 262 {
 263    ioprintf(std::cout, "%s %s (%s)\n", PACKAGE, PACKAGE_VERSION, COMMON_ARCH);
 264
 265    cout <<
 266     _("Usage: apt-mark [options] {auto|manual} pkg1 [pkg2 ...]\n"
 267       "\n"
 268       "apt-mark is a simple command line interface for marking packages\n"
 269       "as manually or automatically installed. It can also list marks.\n"
 270       "\n"
 271       "Commands:\n"
 272       "   auto - Mark the given packages as automatically installed\n"
 273       "   manual - Mark the given packages as manually installed\n"
 274       "   hold - Mark a package as held back\n"
 275       "   unhold - Unset a package set as held back\n"
 276       "   showauto - Print the list of automatically installed packages\n"
 277       "   showmanual - Print the list of manually installed packages\n"
 278       "   showhold - Print the list of package on hold\n"
 279       "\n"
 280       "Options:\n"
 281       "  -h  This help text.\n"
 282       "  -q  Loggable output - no progress indicator\n"
 283       "  -qq No output except for errors\n"
 284       "  -s  No-act. Just prints what would be done.\n"
 285       "  -f  read/write auto/manual marking in the given file\n"
 286       "  -c=? Read this configuration file\n"
 287       "  -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n"
 288       "See the apt-mark(8) and apt.conf(5) manual pages for more information.")
 289       << std::endl;
 290    return true;
 291 }
 292                                                                         /*}}}*/
 293 int main(int argc,const char *argv[])                                   /*{{{*/
 294 {
 295    CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp},
 296                                    {"auto",&DoAuto},
 297                                    {"manual",&DoAuto},
 298                                    {"hold",&DoHold},
 299                                    {"unhold",&DoHold},
 300                                    {"showauto",&ShowAuto},
 301                                    {"showmanual",&ShowAuto},
 302                                    {"showhold",&ShowHold},
 303                                    // be nice and forgive the typo
 304                                    {"showholds",&ShowHold},
 305                                    // be nice and forgive it as it is technical right
 306                                    {"install",&DoHold},
 307                                    // obsolete commands for compatibility
 308                                    {"markauto", &DoMarkAuto},
 309                                    {"unmarkauto", &DoMarkAuto},
 310                                    {0,0}};
 311
 312    std::vector<CommandLine::Args> Args = getCommandArgs("apt-mark", CommandLine::GetCommand(Cmds, argc, argv));
 313
 314    // Set up gettext support
 315    setlocale(LC_ALL,"");
 316    textdomain(PACKAGE);
 317
 318    CommandLine CmdL;
 319    ParseCommandLine(CmdL, Cmds, Args.data(), &_config, &_system, argc, argv, ShowHelp);
 320
 321    InitOutput();
 322
 323    // Match the operation
 324    CmdL.DispatchArg(Cmds);
 325
 326    // Print any errors or warnings found during parsing
 327    bool const Errors = _error->PendingError();
 328    if (_config->FindI("quiet",0) > 0)
 329       _error->DumpErrors();
 330    else
 331       _error->DumpErrors(GlobalError::DEBUG);
 332    return Errors == true ? 100 : 0;
 333 }
 334                                                                         /*}}}*/