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