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), Current(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          Parser* P = (*J)->CreateSrcParser();
  43          if (_error->PendingError() == true)
  44             return;
  45          if (P != 0)
  46             Files.push_back(P);
  47       }
  48    }
  49
  50    // Doesn't work without any source index files
  51    if (Files.empty() == true)
  52    {
  53       _error->Error(_("You must put some 'source' URIs"
  54                     " in your sources.list"));
  55       return;
  56    }
  57
  58    Restart();
  59 }
  60                                                                         /*}}}*/
  61 // SrcRecords::~pkgSrcRecords - Destructor                              /*{{{*/
  62 // ---------------------------------------------------------------------
  63 /* */
  64 pkgSrcRecords::~pkgSrcRecords()
  65 {
  66    // Blow away all the parser objects
  67    for(std::vector<Parser*>::iterator I = Files.begin(); I != Files.end(); ++I)
  68       delete *I;
  69 }
  70                                                                         /*}}}*/
  71 // SrcRecords::Restart - Restart the search                             /*{{{*/
  72 // ---------------------------------------------------------------------
  73 /* Return all of the parsers to their starting position */
  74 bool pkgSrcRecords::Restart()
  75 {
  76    Current = Files.begin();
  77    for (std::vector<Parser*>::iterator I = Files.begin();
  78         I != Files.end(); ++I)
  79       if ((*I)->Offset() != 0)
  80          (*I)->Restart();
  81
  82    return true;
  83 }
  84                                                                         /*}}}*/
  85 // SrcRecords::Step - Step to the next Source Record                    /*{{{*/
  86 // ---------------------------------------------------------------------
  87 /* Step to the next source package record */
  88 const pkgSrcRecords::Parser* pkgSrcRecords::Step()
  89 {
  90    if (Current == Files.end())
  91       return 0;
  92
  93    // Step to the next record, possibly switching files
  94    while ((*Current)->Step() == false)
  95    {
  96       if (_error->PendingError() == true)
  97          return 0;
  98       ++Current;
  99       if (Current == Files.end())
 100          return 0;
 101    }
 102
 103    return *Current;
 104 }
 105                                                                         /*}}}*/
 106 // SrcRecords::Find - Find the first source package with the given name /*{{{*/
 107 // ---------------------------------------------------------------------
 108 /* This searches on both source package names and output binary names and
 109    returns the first found. A 'cursor' like system is used to allow this
 110    function to be called multiple times to get successive entries */
 111 pkgSrcRecords::Parser *pkgSrcRecords::Find(const char *Package,bool const &SrcOnly)
 112 {
 113    while (true)
 114    {
 115       if(Step() == 0)
 116          return 0;
 117
 118       // IO error somehow
 119       if (_error->PendingError() == true)
 120          return 0;
 121
 122       // Source name hit
 123       if ((*Current)->Package() == Package)
 124          return *Current;
 125
 126       if (SrcOnly == true)
 127          continue;
 128
 129       // Check for a binary hit
 130       const char **I = (*Current)->Binaries();
 131       for (; I != 0 && *I != 0; ++I)
 132          if (strcmp(Package,*I) == 0)
 133             return *Current;
 134    }
 135 }
 136                                                                         /*}}}*/
 137 // Parser::BuildDepType - Convert a build dep to a string               /*{{{*/
 138 // ---------------------------------------------------------------------
 139 /* */
 140 const char *pkgSrcRecords::Parser::BuildDepType(unsigned char const &Type)
 141 {
 142    const char *fields[] = {"Build-Depends",
 143                            "Build-Depends-Indep",
 144                            "Build-Conflicts",
 145                            "Build-Conflicts-Indep"};
 146    if (unlikely(Type >= sizeof(fields)/sizeof(fields[0])))
 147       return "";
 148    return fields[Type];
 149 }
 150                                                                         /*}}}*/
 151 bool pkgSrcRecords::Parser::Files2(std::vector<pkgSrcRecords::File2> &F2)/*{{{*/
 152 {
 153    debSrcRecordParser * const deb = dynamic_cast<debSrcRecordParser*>(this);
 154    if (deb != NULL)
 155       return deb->Files2(F2);
 156
 157    std::vector<pkgSrcRecords::File> F;
 158    if (Files(F) == false)
 159       return false;
 160    for (std::vector<pkgSrcRecords::File>::const_iterator f = F.begin(); f != F.end(); ++f)
 161    {
 162       pkgSrcRecords::File2 f2;
 163 #if __GNUC__ >= 4
 164         #pragma GCC diagnostic push
 165         #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 166 #endif
 167       f2.MD5Hash = f->MD5Hash;
 168       f2.Size = f->Size;
 169       f2.Hashes.push_back(HashString("MD5Sum", f->MD5Hash));
 170       f2.FileSize = f->Size;
 171 #if __GNUC__ >= 4
 172         #pragma GCC diagnostic pop
 173 #endif
 174       f2.Path = f->Path;
 175       f2.Type = f->Type;
 176       F2.push_back(f2);
 177    }
 178    return true;
 179 }
 180                                                                         /*}}}*/