apt-pkg/srcrecords.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: srcrecords.cc,v 1.7.2.2 2003/12/26 16:27:34 mdz Exp $
   4 /* ######################################################################
   5
   6    Source Package Records - Allows access to source package records
   7
   8    Parses and allows access to the list of source records and searching by
   9    source name on that list.
  10
  11    ##################################################################### */
  12                                                                         /*}}}*/
  13 // Include Files                                                        /*{{{*/
  14 #include<config.h>
  15
  16 #include <apt-pkg/srcrecords.h>
  17 #include <apt-pkg/debsrcrecords.h>
  18 #include <apt-pkg/error.h>
  19 #include <apt-pkg/sourcelist.h>
  20 #include <apt-pkg/metaindex.h>
  21 #include <apt-pkg/indexfile.h>
  22 #include <apt-pkg/macros.h>
  23
  24 #include <string.h>
  25 #include <string>
  26 #include <vector>
  27
  28 #include <apti18n.h>
  29                                                                         /*}}}*/
  30
  31 // SrcRecords::pkgSrcRecords - Constructor                              /*{{{*/
  32 // ---------------------------------------------------------------------
  33 /* Open all the source index files */
  34 pkgSrcRecords::pkgSrcRecords(pkgSourceList &List) : d(NULL), Files(0)
  35 {
  36    for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); ++I)
  37    {
  38       std::vector<pkgIndexFile *> *Indexes = (*I)->GetIndexFiles();
  39       for (std::vector<pkgIndexFile *>::const_iterator J = Indexes->begin();
  40            J != Indexes->end(); ++J)
  41       {
  42          _error->PushToStack();
  43          Parser* P = (*J)->CreateSrcParser();
  44          bool const newError = _error->PendingError();
  45          _error->MergeWithStack();
  46          if (newError)
  47             return;
  48          if (P != 0)
  49             Files.push_back(P);
  50       }
  51    }
  52
  53    // Doesn't work without any source index files
  54    if (Files.empty() == true)
  55    {
  56       _error->Error(_("You must put some 'source' URIs"
  57                     " in your sources.list"));
  58       return;
  59    }
  60
  61    Restart();
  62 }
  63                                                                         /*}}}*/
  64 // SrcRecords::~pkgSrcRecords - Destructor                              /*{{{*/
  65 // ---------------------------------------------------------------------
  66 /* */
  67 pkgSrcRecords::~pkgSrcRecords()
  68 {
  69    // Blow away all the parser objects
  70    for(std::vector<Parser*>::iterator I = Files.begin(); I != Files.end(); ++I)
  71       delete *I;
  72 }
  73                                                                         /*}}}*/
  74 // SrcRecords::Restart - Restart the search                             /*{{{*/
  75 // ---------------------------------------------------------------------
  76 /* Return all of the parsers to their starting position */
  77 bool pkgSrcRecords::Restart()
  78 {
  79    Current = Files.begin();
  80    for (std::vector<Parser*>::iterator I = Files.begin();
  81         I != Files.end(); ++I)
  82       if ((*I)->Offset() != 0)
  83          (*I)->Restart();
  84
  85    return true;
  86 }
  87                                                                         /*}}}*/
  88 // SrcRecords::Step - Step to the next Source Record                    /*{{{*/
  89 // ---------------------------------------------------------------------
  90 /* Step to the next source package record */
  91 const pkgSrcRecords::Parser* pkgSrcRecords::Step()
  92 {
  93    if (Current == Files.end())
  94       return 0;
  95
  96    // Step to the next record, possibly switching files
  97    while ((*Current)->Step() == false)
  98    {
  99       ++Current;
 100       if (Current == Files.end())
 101          return 0;
 102    }
 103
 104    return *Current;
 105 }
 106                                                                         /*}}}*/
 107 // SrcRecords::Find - Find the first source package with the given name /*{{{*/
 108 // ---------------------------------------------------------------------
 109 /* This searches on both source package names and output binary names and
 110    returns the first found. A 'cursor' like system is used to allow this
 111    function to be called multiple times to get successive entries */
 112 pkgSrcRecords::Parser *pkgSrcRecords::Find(const char *Package,bool const &SrcOnly)
 113 {
 114    while (true)
 115    {
 116       if(Step() == 0)
 117          return 0;
 118
 119       // Source name hit
 120       if ((*Current)->Package() == Package)
 121          return *Current;
 122
 123       if (SrcOnly == true)
 124          continue;
 125
 126       // Check for a binary hit
 127       const char **I = (*Current)->Binaries();
 128       for (; I != 0 && *I != 0; ++I)
 129          if (strcmp(Package,*I) == 0)
 130             return *Current;
 131    }
 132 }
 133                                                                         /*}}}*/
 134 // Parser::BuildDepType - Convert a build dep to a string               /*{{{*/
 135 // ---------------------------------------------------------------------
 136 /* */
 137 const char *pkgSrcRecords::Parser::BuildDepType(unsigned char const &Type)
 138 {
 139    const char *fields[] = {"Build-Depends",
 140                            "Build-Depends-Indep",
 141                            "Build-Conflicts",
 142                            "Build-Conflicts-Indep",
 143                            "Build-Depends-Arch",
 144                            "Build-Conflicts-Arch"};
 145    if (unlikely(Type >= sizeof(fields)/sizeof(fields[0])))
 146       return "";
 147    return fields[Type];
 148 }
 149                                                                         /*}}}*/
 150 bool pkgSrcRecords::Parser::Files2(std::vector<pkgSrcRecords::File2> &F2)/*{{{*/
 151 {
 152    debSrcRecordParser * const deb = dynamic_cast<debSrcRecordParser*>(this);
 153    if (deb != NULL)
 154       return deb->Files2(F2);
 155
 156    std::vector<pkgSrcRecords::File> F;
 157    if (Files(F) == false)
 158       return false;
 159    for (std::vector<pkgSrcRecords::File>::const_iterator f = F.begin(); f != F.end(); ++f)
 160    {
 161       pkgSrcRecords::File2 f2;
 162 #if __GNUC__ >= 4
 163         #pragma GCC diagnostic push
 164         #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 165 #endif
 166       f2.MD5Hash = f->MD5Hash;
 167       f2.Size = f->Size;
 168       f2.Hashes.push_back(HashString("MD5Sum", f->MD5Hash));
 169       f2.FileSize = f->Size;
 170 #if __GNUC__ >= 4
 171         #pragma GCC diagnostic pop
 172 #endif
 173       f2.Path = f->Path;
 174       f2.Type = f->Type;
 175       F2.push_back(f2);
 176    }
 177    return true;
 178 }
 179                                                                         /*}}}*/
 180
 181
 182 pkgSrcRecords::Parser::Parser(const pkgIndexFile *Index) : d(NULL), iIndex(Index) {}
 183 pkgSrcRecords::Parser::~Parser() {}