apt-pkg/edsp/edsplistparser.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /* ######################################################################
   4
   5    Package Cache Generator - Generator for the cache structure.
   6
   7    This builds the cache structure from the abstract package list parser.
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 // Include Files                                                        /*{{{*/
  12 #include <config.h>
  13
  14 #include <apt-pkg/configuration.h>
  15 #include <apt-pkg/edsplistparser.h>
  16 #include <apt-pkg/md5.h>
  17 #include <apt-pkg/deblistparser.h>
  18 #include <apt-pkg/pkgcache.h>
  19 #include <apt-pkg/cacheiterators.h>
  20 #include <apt-pkg/tagfile.h>
  21 #include <apt-pkg/fileutl.h>
  22 #include <apt-pkg/pkgsystem.h>
  23
  24                                                                         /*}}}*/
  25
  26 // ListParser::edspListParser - Constructor                             /*{{{*/
  27 edspLikeListParser::edspLikeListParser(FileFd * const File) : debListParser(File)
  28 {
  29 }
  30 edspListParser::edspListParser(FileFd * const File) : edspLikeListParser(File)
  31 {
  32    std::string const states = _config->FindFile("Dir::State::extended_states");
  33    RemoveFile("edspListParserPrivate", states);
  34    extendedstates.Open(states, FileFd::WriteOnly | FileFd::Create | FileFd::Exclusive, 0600);
  35    std::string const prefs = _config->FindFile("Dir::Etc::preferences");
  36    RemoveFile("edspListParserPrivate", prefs);
  37    preferences.Open(prefs, FileFd::WriteOnly | FileFd::Create | FileFd::Exclusive, 0600);
  38 }
  39                                                                         /*}}}*/
  40 // ListParser::NewVersion - Fill in the version structure               /*{{{*/
  41 bool edspLikeListParser::NewVersion(pkgCache::VerIterator &Ver)
  42 {
  43    _system->SetVersionMapping(Ver->ID, Section.FindI("APT-ID", Ver->ID));
  44    return debListParser::NewVersion(Ver);
  45 }
  46                                                                         /*}}}*/
  47 // ListParser::Description - Return the description string              /*{{{*/
  48 // ---------------------------------------------------------------------
  49 /* Sorry, no description for the resolvers… */
  50 std::vector<std::string> edspLikeListParser::AvailableDescriptionLanguages()
  51 {
  52    return {};
  53 }
  54 MD5SumValue edspLikeListParser::Description_md5()
  55 {
  56    return MD5SumValue("");
  57 }
  58                                                                         /*}}}*/
  59 // ListParser::VersionHash - Compute a unique hash for this version     /*{{{*/
  60 unsigned short edspLikeListParser::VersionHash()
  61 {
  62    if (Section.Exists("APT-Hash") == true)
  63       return Section.FindI("APT-Hash");
  64    else if (Section.Exists("APT-ID") == true)
  65       return Section.FindI("APT-ID");
  66    return 0;
  67 }
  68                                                                         /*}}}*/
  69 // ListParser::LoadReleaseInfo - Load the release information           /*{{{*/
  70 APT_CONST bool edspLikeListParser::LoadReleaseInfo(pkgCache::RlsFileIterator & /*FileI*/,
  71                                     FileFd & /*File*/, std::string const &/*component*/)
  72 {
  73    return true;
  74 }
  75                                                                         /*}}}*/
  76 // ListParser::ParseStatus - Parse the status field                     /*{{{*/
  77 // ---------------------------------------------------------------------
  78 /* The Status: line here is not a normal dpkg one but just one which tells
  79    use if the package is installed or not, where missing means not. */
  80 bool edspListParser::ParseStatus(pkgCache::PkgIterator &Pkg,
  81                                 pkgCache::VerIterator &Ver)
  82 {
  83    unsigned long state = 0;
  84    if (Section.FindFlag("Hold",state,pkgCache::State::Hold) == false)
  85       return false;
  86    if (state != 0)
  87       Pkg->SelectedState = pkgCache::State::Hold;
  88
  89    state = 0;
  90    if (Section.FindFlag("Installed",state,pkgCache::State::Installed) == false)
  91       return false;
  92    if (state != 0)
  93    {
  94       Pkg->CurrentState = pkgCache::State::Installed;
  95       Pkg->CurrentVer = Ver.Index();
  96    }
  97
  98    if (Section.FindB("APT-Automatic", false))
  99    {
 100       std::string out;
 101       strprintf(out, "Package: %s\nArchitecture: %s\nAuto-Installed: 1\n\n", Pkg.Name(), Pkg.Arch());
 102       if (extendedstates.Write(out.c_str(), out.length()) == false)
 103          return false;
 104    }
 105
 106    // FIXME: Using an overriding pin is wrong.
 107    if (Section.FindB("APT-Candidate", false))
 108    {
 109       std::string out;
 110       strprintf(out, "Package: %s\nPin: version %s\nPin-Priority: 9999\n\n", Pkg.FullName().c_str(), Ver.VerStr());
 111       if (preferences.Write(out.c_str(), out.length()) == false)
 112          return false;
 113    }
 114
 115    signed short const pinvalue = Section.FindI("APT-Pin", 500);
 116    if (pinvalue != 500)
 117    {
 118       std::string out;
 119       strprintf(out, "Package: %s\nPin: version %s\nPin-Priority: %d\n\n", Pkg.FullName().c_str(), Ver.VerStr(), pinvalue);
 120       if (preferences.Write(out.c_str(), out.length()) == false)
 121          return false;
 122    }
 123
 124    return true;
 125 }
 126                                                                         /*}}}*/
 127
 128 edspLikeListParser::~edspLikeListParser() {}
 129 edspListParser::~edspListParser() {}