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
  41    // Find an appropriate file
  42    pkgCache::VerFileIterator Vf = V.FileList();
  43    for (; Vf.end() == false; ++Vf)
  44       if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0)
  45          break;
  46    if (Vf.end() == true)
  47       Vf = V.FileList();
  48
  49    // Check and load the package list file
  50    pkgCache::PkgFileIterator I = Vf.File();
  51    if (I.IsOk() == false)
  52       return _error->Error(_("Package file %s is out of sync."),I.FileName());
  53
  54    // Read the record
  55    FileFd PkgF;
  56    if (PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension) == false)
  57       return false;
  58    pkgTagSection Tags;
  59    pkgTagFile TagF(&PkgF);
  60
  61    if (TagF.Jump(Tags, V.FileList()->Offset) == false)
  62       return _error->Error("Internal Error, Unable to parse a package record");
  63
  64    // make size nice
  65    std::string installed_size;
  66    if (Tags.FindI("Installed-Size") > 0)
  67       installed_size = SizeToStr(Tags.FindI("Installed-Size")*1024);
  68    else
  69       installed_size = _("unknown");
  70    std::string package_size;
  71    if (Tags.FindI("Size") > 0)
  72       package_size = SizeToStr(Tags.FindI("Size"));
  73    else
  74       package_size = _("unknown");
  75
  76    TFRewriteData RW[] = {
  77       {"Conffiles",0},
  78       {"Description",0},
  79       {"Description-md5",0},
  80       {"Installed-Size", installed_size.c_str(), 0},
  81       {"Size", package_size.c_str(), "Download-Size"},
  82       {}
  83    };
  84    if(TFRewrite(stdout, Tags, NULL, RW) == false)
  85       return _error->Error("Internal Error, Unable to parse a package record");
  86
  87    // write the description
  88    pkgRecords Recs(*Cache);
  89    // FIXME: show (optionally) all available translations(?)
  90    pkgCache::DescIterator Desc = V.TranslatedDescription();
  91    if (Desc.end() == false)
  92    {
  93       pkgRecords::Parser &P = Recs.Lookup(Desc.FileList());
  94       out << "Description: " << P.LongDesc();
  95    }
  96
  97    // write a final newline (after the description)
  98    out << std::endl << std::endl;
  99
 100    return true;
 101 }
 102                                                                         /*}}}*/
 103 bool ShowPackage(CommandLine &CmdL)                                     /*{{{*/
 104 {
 105    pkgCacheFile CacheFile;
 106    CacheSetHelperVirtuals helper(true, GlobalError::NOTICE);
 107    APT::VersionList::Version const select = _config->FindB("APT::Cache::AllVersions", false) ?
 108                         APT::VersionList::ALL : APT::VersionList::CANDIDATE;
 109    APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper);
 110    for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver)
 111       if (DisplayRecord(CacheFile, Ver, c1out) == false)
 112          return false;
 113
 114    if (select == APT::VersionList::CANDIDATE)
 115    {
 116       APT::VersionList const verset_all = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, APT::VersionList::ALL, helper);
 117       if (verset_all.size() > verset.size())
 118          _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());
 119    }
 120
 121    for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin();
 122         Pkg != helper.virtualPkgs.end(); ++Pkg)
 123    {
 124        c1out << "Package: " << Pkg.FullName(true) << std::endl;
 125        c1out << "State: " << _("not a real package (virtual)") << std::endl;
 126        // FIXME: show providers, see private-cacheset.h
 127        //        CacheSetHelperAPTGet::showVirtualPackageErrors()
 128    }
 129
 130    if (verset.empty() == true)
 131    {
 132       if (helper.virtualPkgs.empty() == true)
 133         return _error->Error(_("No packages found"));
 134       else
 135         _error->Notice(_("No packages found"));
 136    }
 137
 138    return true;
 139 }
 140                                                                         /*}}}*/
 141 } // namespace Cmd
 142 } // namespace APT