apt-private/private-show.cc

   1 // Includes                                                             /*{{{*/
   2 #include <apt-pkg/error.h>
   3 #include <apt-pkg/cachefile.h>
   4 #include <apt-pkg/cachefilter.h>
   5 #include <apt-pkg/cacheset.h>
   6 #include <apt-pkg/init.h>
   7 #include <apt-pkg/progress.h>
   8 #include <apt-pkg/sourcelist.h>
   9 #include <apt-pkg/cmndline.h>
  10 #include <apt-pkg/strutl.h>
  11 #include <apt-pkg/fileutl.h>
  12 #include <apt-pkg/pkgrecords.h>
  13 #include <apt-pkg/srcrecords.h>
  14 #include <apt-pkg/version.h>
  15 #include <apt-pkg/policy.h>
  16 #include <apt-pkg/tagfile.h>
  17 #include <apt-pkg/algorithms.h>
  18 #include <apt-pkg/sptr.h>
  19 #include <apt-pkg/pkgsystem.h>
  20 #include <apt-pkg/indexfile.h>
  21 #include <apt-pkg/metaindex.h>
  22
  23 #include <apti18n.h>
  24
  25 #include "private-output.h"
  26 #include "private-cacheset.h"
  27                                                                         /*}}}*/
  28
  29 namespace APT {
  30    namespace Cmd {
  31
  32 // DisplayRecord - Displays the complete record for the package         /*{{{*/
  33 // ---------------------------------------------------------------------
  34 bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V,
  35                    ostream &out)
  36 {
  37    pkgCache *Cache = CacheFile.GetPkgCache();
  38    if (unlikely(Cache == NULL))
  39       return false;
  40    pkgDepCache *depCache = CacheFile.GetDepCache();
  41    if (unlikely(depCache == NULL))
  42       return false;
  43
  44    // Find an appropriate file
  45    pkgCache::VerFileIterator Vf = V.FileList();
  46    for (; Vf.end() == false; ++Vf)
  47       if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0)
  48          break;
  49    if (Vf.end() == true)
  50       Vf = V.FileList();
  51
  52    // Check and load the package list file
  53    pkgCache::PkgFileIterator I = Vf.File();
  54    if (I.IsOk() == false)
  55       return _error->Error(_("Package file %s is out of sync."),I.FileName());
  56
  57    // find matching sources.list metaindex
  58    pkgSourceList *SrcList = CacheFile.GetSourceList();
  59    pkgIndexFile *Index;
  60    if (SrcList->FindIndex(I, Index) == false &&
  61        _system->FindIndex(I, Index) == false)
  62       return _error->Error("Can not find indexfile for Package %s (%s)",
  63                            V.ParentPkg().Name(), V.VerStr());
  64    std::string source_index_file = Index->Describe(true);
  65
  66    // Read the record
  67    FileFd PkgF;
  68    if (PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension) == false)
  69       return false;
  70    pkgTagSection Tags;
  71    pkgTagFile TagF(&PkgF);
  72
  73    if (TagF.Jump(Tags, V.FileList()->Offset) == false)
  74       return _error->Error("Internal Error, Unable to parse a package record");
  75
  76    // make size nice
  77    std::string installed_size;
  78    if (Tags.FindI("Installed-Size") > 0)
  79       strprintf(installed_size, "%sB", SizeToStr(Tags.FindI("Installed-Size")*1024).c_str());
  80    else
  81       installed_size = _("unknown");
  82    std::string package_size;
  83    if (Tags.FindI("Size") > 0)
  84       strprintf(package_size, "%sB", SizeToStr(Tags.FindI("Size")).c_str());
  85    else
  86       package_size = _("unknown");
  87
  88    pkgDepCache::StateCache &state = (*depCache)[V.ParentPkg()];
  89    bool is_installed = V.ParentPkg().CurrentVer() == V;
  90    const char *manual_installed;
  91    if (is_installed)
  92       manual_installed = !(state.Flags & pkgCache::Flag::Auto) ? "yes" : "no";
  93    else
  94       manual_installed = 0;
  95
  96    // FIXME: add verbose that does not do the removal of the tags?
  97    TFRewriteData RW[] = {
  98       // delete, apt-cache show has this info and most users do not care
  99       {"MD5sum", NULL, NULL},
 100       {"SHA1", NULL, NULL},
 101       {"SHA256", NULL, NULL},
 102       {"Filename", NULL, NULL},
 103       {"Multi-Arch", NULL, NULL},
 104       {"Architecture", NULL, NULL},
 105       {"Conffiles", NULL, NULL},
 106       // we use the translated description
 107       {"Description", NULL, NULL},
 108       {"Description-md5", NULL, NULL},
 109       // improve
 110       {"Installed-Size", installed_size.c_str(), NULL},
 111       {"Size", package_size.c_str(), "Download-Size"},
 112       // add
 113       {"APT-Manual-Installed", manual_installed, NULL},
 114       {"APT-Sources", source_index_file.c_str(), NULL},
 115       {NULL, NULL, NULL}
 116    };
 117
 118    if(TFRewrite(stdout, Tags, NULL, RW) == false)
 119       return _error->Error("Internal Error, Unable to parse a package record");
 120
 121    // write the description
 122    pkgRecords Recs(*Cache);
 123    // FIXME: show (optionally) all available translations(?)
 124    pkgCache::DescIterator Desc = V.TranslatedDescription();
 125    if (Desc.end() == false)
 126    {
 127       pkgRecords::Parser &P = Recs.Lookup(Desc.FileList());
 128       out << "Description: " << P.LongDesc();
 129    }
 130
 131    // write a final newline (after the description)
 132    out << std::endl << std::endl;
 133
 134    return true;
 135 }
 136                                                                         /*}}}*/
 137 bool ShowPackage(CommandLine &CmdL)                                     /*{{{*/
 138 {
 139    pkgCacheFile CacheFile;
 140    CacheSetHelperVirtuals helper(true, GlobalError::NOTICE);
 141    APT::VersionList::Version const select = _config->FindB("APT::Cache::AllVersions", false) ?
 142                         APT::VersionList::ALL : APT::VersionList::CANDIDATE;
 143    APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper);
 144    for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver)
 145       if (DisplayRecord(CacheFile, Ver, c1out) == false)
 146          return false;
 147
 148    if (select == APT::VersionList::CANDIDATE)
 149    {
 150       APT::VersionList const verset_all = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, APT::VersionList::ALL, helper);
 151       if (verset_all.size() > verset.size())
 152          _error->Notice(ngettext("There is %lu additional record. Please use the '-a' switch to see it", "There are %lu additional records. Please use the '-a' switch to see them.", verset_all.size() - verset.size()), verset_all.size() - verset.size());
 153    }
 154
 155    for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin();
 156         Pkg != helper.virtualPkgs.end(); ++Pkg)
 157    {
 158        c1out << "Package: " << Pkg.FullName(true) << std::endl;
 159        c1out << "State: " << _("not a real package (virtual)") << std::endl;
 160        // FIXME: show providers, see private-cacheset.h
 161        //        CacheSetHelperAPTGet::showVirtualPackageErrors()
 162    }
 163
 164    if (verset.empty() == true)
 165    {
 166       if (helper.virtualPkgs.empty() == true)
 167         return _error->Error(_("No packages found"));
 168       else
 169         _error->Notice(_("No packages found"));
 170    }
 171
 172    return true;
 173 }
 174                                                                         /*}}}*/
 175 } // namespace Cmd
 176 } // namespace APT