apt-pkg/deb/debsrcrecords.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: debsrcrecords.cc,v 1.6 2004/03/17 05:58:54 mdz Exp $
   4 /* ######################################################################
   5
   6    Debian Source Package Records - Parser implementation for Debian style
   7                                    source indexes
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 // Include Files                                                        /*{{{*/
  12 #include <apt-pkg/deblistparser.h>
  13 #include <apt-pkg/debsrcrecords.h>
  14 #include <apt-pkg/error.h>
  15 #include <apt-pkg/strutl.h>
  16 #include <apt-pkg/configuration.h>
  17
  18 using std::max;
  19                                                                         /*}}}*/
  20
  21 // SrcRecordParser::Binaries - Return the binaries field                /*{{{*/
  22 // ---------------------------------------------------------------------
  23 /* This member parses the binaries field into a pair of class arrays and
  24    returns a list of strings representing all of the components of the
  25    binaries field. The returned array need not be freed and will be
  26    reused by the next Binaries function call. This function is commonly
  27    used during scanning to find the right package */
  28 const char **debSrcRecordParser::Binaries()
  29 {
  30    // This should use Start/Stop too, it is supposed to be efficient after all.
  31    string Bins = Sect.FindS("Binary");
  32    if (Bins.empty() == true || Bins.length() >= 102400)
  33       return 0;
  34
  35    if (Bins.length() >= BufSize)
  36    {
  37       delete [] Buffer;
  38       // allocate new size based on buffer (but never smaller than 4000)
  39       BufSize = max((unsigned int)4000, max((unsigned int)Bins.length()+1,2*BufSize));
  40       Buffer = new char[BufSize];
  41    }
  42
  43    strcpy(Buffer,Bins.c_str());
  44    if (TokSplitString(',',Buffer,StaticBinList,
  45                       sizeof(StaticBinList)/sizeof(StaticBinList[0])) == false)
  46       return 0;
  47
  48    return (const char **)StaticBinList;
  49 }
  50                                                                         /*}}}*/
  51 // SrcRecordParser::BuildDepends - Return the Build-Depends information /*{{{*/
  52 // ---------------------------------------------------------------------
  53 /* This member parses the build-depends information and returns a list of
  54    package/version records representing the build dependency. The returned
  55    array need not be freed and will be reused by the next call to this
  56    function */
  57 bool debSrcRecordParser::BuildDepends(vector<pkgSrcRecords::Parser::BuildDepRec> &BuildDeps, bool ArchOnly)
  58 {
  59    unsigned int I;
  60    const char *Start, *Stop;
  61    BuildDepRec rec;
  62    const char *fields[] = {"Build-Depends",
  63                            "Build-Depends-Indep",
  64                            "Build-Conflicts",
  65                            "Build-Conflicts-Indep"};
  66
  67    BuildDeps.clear();
  68
  69    for (I = 0; I < 4; I++)
  70    {
  71       if (ArchOnly && (I == 1 || I == 3))
  72          continue;
  73
  74       if (Sect.Find(fields[I], Start, Stop) == false)
  75          continue;
  76
  77       while (1)
  78       {
  79          Start = debListParser::ParseDepends(Start, Stop,
  80                      rec.Package,rec.Version,rec.Op,true);
  81
  82          if (Start == 0)
  83             return _error->Error("Problem parsing dependency: %s", fields[I]);
  84          rec.Type = I;
  85
  86          if (rec.Package != "")
  87             BuildDeps.push_back(rec);
  88
  89          if (Start == Stop)
  90             break;
  91       }
  92    }
  93
  94    return true;
  95 }
  96                                                                         /*}}}*/
  97 // SrcRecordParser::Files - Return a list of files for this source      /*{{{*/
  98 // ---------------------------------------------------------------------
  99 /* This parses the list of files and returns it, each file is required to have
 100    a complete source package */
 101 bool debSrcRecordParser::Files(vector<pkgSrcRecords::File> &List)
 102 {
 103    List.erase(List.begin(),List.end());
 104
 105    string Files = Sect.FindS("Files");
 106    if (Files.empty() == true)
 107       return false;
 108
 109    // Stash the / terminated directory prefix
 110    string Base = Sect.FindS("Directory");
 111    if (Base.empty() == false && Base[Base.length()-1] != '/')
 112       Base += '/';
 113
 114    // Iterate over the entire list grabbing each triplet
 115    const char *C = Files.c_str();
 116    while (*C != 0)
 117    {
 118       pkgSrcRecords::File F;
 119       string Size;
 120
 121       // Parse each of the elements
 122       if (ParseQuoteWord(C,F.MD5Hash) == false ||
 123           ParseQuoteWord(C,Size) == false ||
 124           ParseQuoteWord(C,F.Path) == false)
 125          return _error->Error("Error parsing file record");
 126
 127       // Parse the size and append the directory
 128       F.Size = atoi(Size.c_str());
 129       F.Path = Base + F.Path;
 130
 131       // Try to guess what sort of file it is we are getting.
 132       string::size_type Pos = F.Path.length()-1;
 133       while (1)
 134       {
 135          string::size_type Tmp = F.Path.rfind('.',Pos);
 136          if (Tmp == string::npos)
 137             break;
 138          F.Type = string(F.Path,Tmp+1,Pos-Tmp);
 139
 140          if (F.Type == "gz" || F.Type == "bz2" || F.Type == "lzma")
 141          {
 142             Pos = Tmp-1;
 143             continue;
 144          }
 145
 146          break;
 147       }
 148
 149       List.push_back(F);
 150    }
 151
 152    return true;
 153 }
 154                                                                         /*}}}*/
 155 // SrcRecordParser::~SrcRecordParser - Destructor                       /*{{{*/
 156 // ---------------------------------------------------------------------
 157 /* */
 158 debSrcRecordParser::~debSrcRecordParser()
 159 {
 160    delete[] Buffer;
 161 }
 162                                                                         /*}}}*/