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    TFRewriteData RW[] = {
  62       {"Conffiles",0},
  63       {"Description",0},
  64       {"Description-md5",0},
  65       {}
  66    };
  67    const char *Zero = 0;
  68    if (TagF.Jump(Tags, V.FileList()->Offset) == false ||
  69        TFRewrite(stdout,Tags,&Zero,RW) == false)
  70    {
  71       _error->Error("Internal Error, Unable to parse a package record");
  72       return false;
  73    }
  74
  75    // write the description
  76    pkgRecords Recs(*Cache);
  77    // FIXME: show (optionally) all available translations(?)
  78    pkgCache::DescIterator Desc = V.TranslatedDescription();
  79    if (Desc.end() == false)
  80    {
  81       pkgRecords::Parser &P = Recs.Lookup(Desc.FileList());
  82       out << "Description: " << P.LongDesc();
  83    }
  84
  85    // write a final newline (after the description)
  86    out << std::endl << std::endl;
  87
  88    return true;
  89 }
  90                                                                         /*}}}*/
  91 bool ShowPackage(CommandLine &CmdL)                                     /*{{{*/
  92 {
  93    pkgCacheFile CacheFile;
  94    CacheSetHelperVirtuals helper(true, GlobalError::NOTICE);
  95    APT::VersionList::Version const select = APT::VersionList::CANDIDATE;
  96    APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper);
  97    for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver)
  98       if (DisplayRecord(CacheFile, Ver, c1out) == false)
  99          return false;
 100
 101    for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin();
 102         Pkg != helper.virtualPkgs.end(); ++Pkg)
 103    {
 104        c1out << "Package: " << Pkg.FullName(true) << std::endl;
 105        c1out << "State: " << _("not a real package (virtual)") << std::endl;
 106        // FIXME: show providers, see private-cacheset.h
 107        //        CacheSetHelperAPTGet::showVirtualPackageErrors()
 108    }
 109
 110    if (verset.empty() == true)
 111    {
 112       if (helper.virtualPkgs.empty() == true)
 113         return _error->Error(_("No packages found"));
 114       else
 115         _error->Notice(_("No packages found"));
 116    }
 117
 118    return true;
 119 }
 120                                                                         /*}}}*/
 121 } // namespace Cmd
 122 } // namespace APT