apt-pkg/sourcelist.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: sourcelist.cc,v 1.13 1999/04/07 05:30:17 jgg Exp $
   4 /* ######################################################################
   5
   6    List of Sources
   7
   8    ##################################################################### */
   9                                                                         /*}}}*/
  10 // Include Files                                                        /*{{{*/
  11 #ifdef __GNUG__
  12 #pragma implementation "apt-pkg/sourcelist.h"
  13 #endif
  14
  15 #include <apt-pkg/sourcelist.h>
  16 #include <apt-pkg/error.h>
  17 #include <apt-pkg/fileutl.h>
  18 #include <apt-pkg/configuration.h>
  19 #include <apt-pkg/strutl.h>
  20
  21 #include <fstream.h>
  22 #include <stdio.h>
  23 #include <unistd.h>
  24 #include <sys/stat.h>
  25                                                                         /*}}}*/
  26
  27 // SourceList::pkgSourceList - Constructors                             /*{{{*/
  28 // ---------------------------------------------------------------------
  29 /* */
  30 pkgSourceList::pkgSourceList()
  31 {
  32 }
  33
  34 pkgSourceList::pkgSourceList(string File)
  35 {
  36    Read(File);
  37 }
  38                                                                         /*}}}*/
  39 // SourceList::ReadMainList - Read the main source list from etc        /*{{{*/
  40 // ---------------------------------------------------------------------
  41 /* */
  42 bool pkgSourceList::ReadMainList()
  43 {
  44    return Read(_config->FindFile("Dir::Etc::sourcelist"));
  45 }
  46                                                                         /*}}}*/
  47 // SourceList::Read - Parse the sourcelist file                         /*{{{*/
  48 // ---------------------------------------------------------------------
  49 /* */
  50 bool pkgSourceList::Read(string File)
  51 {
  52    // Open the stream for reading
  53    ifstream F(File.c_str(),ios::in | ios::nocreate);
  54    if (!F != 0)
  55       return _error->Errno("ifstream::ifstream","Opening %s",File.c_str());
  56
  57    List.erase(List.begin(),List.end());
  58    char Buffer[300];
  59
  60    int CurLine = 0;
  61    while (F.eof() == false)
  62    {
  63       F.getline(Buffer,sizeof(Buffer));
  64       CurLine++;
  65       _strtabexpand(Buffer,sizeof(Buffer));
  66       _strstrip(Buffer);
  67
  68       // Comment or blank
  69       if (Buffer[0] == '#' || Buffer[0] == 0)
  70          continue;
  71
  72       // Grok it
  73       string Type;
  74       string URI;
  75       Item Itm;
  76       char *C = Buffer;
  77       if (ParseQuoteWord(C,Type) == false)
  78          return _error->Error("Malformed line %u in source list %s (type)",CurLine,File.c_str());
  79       if (ParseQuoteWord(C,URI) == false)
  80          return _error->Error("Malformed line %u in source list %s (URI)",CurLine,File.c_str());
  81       if (ParseQuoteWord(C,Itm.Dist) == false)
  82          return _error->Error("Malformed line %u in source list %s (dist)",CurLine,File.c_str());
  83       if (Itm.SetType(Type) == false)
  84          return _error->Error("Malformed line %u in source list %s (type parse)",CurLine,File.c_str());
  85       if (Itm.SetURI(URI) == false)
  86          return _error->Error("Malformed line %u in source list %s (URI parse)",CurLine,File.c_str());
  87
  88       // Check for an absolute dists specification.
  89       if (Itm.Dist.empty() == false && Itm.Dist[Itm.Dist.size() - 1] == '/')
  90       {
  91          if (ParseQuoteWord(C,Itm.Section) == true)
  92             return _error->Error("Malformed line %u in source list %s (Absolute dist)",CurLine,File.c_str());
  93          Itm.Dist = SubstVar(Itm.Dist,"$(ARCH)",_config->Find("APT::Architecture"));
  94          List.push_back(Itm);
  95          continue;
  96       }
  97
  98       // Grab the rest of the dists
  99       if (ParseQuoteWord(C,Itm.Section) == false)
 100             return _error->Error("Malformed line %u in source list %s (dist parse)",CurLine,File.c_str());
 101
 102       do
 103       {
 104          List.push_back(Itm);
 105       }
 106       while (ParseQuoteWord(C,Itm.Section) == true);
 107    }
 108    return true;
 109 }
 110                                                                         /*}}}*/
 111 // SourceList::Item << - Writes the item to a stream                    /*{{{*/
 112 // ---------------------------------------------------------------------
 113 /* This is not suitable for rebuilding the sourcelist file but it good for
 114    debugging. */
 115 ostream &operator <<(ostream &O,pkgSourceList::Item &Itm)
 116 {
 117    O << (int)Itm.Type << ' ' << Itm.URI << ' ' << Itm.Dist << ' ' << Itm.Section;
 118    return O;
 119 }
 120                                                                         /*}}}*/
 121 // SourceList::Item::SetType - Sets the distribution type               /*{{{*/
 122 // ---------------------------------------------------------------------
 123 /* */
 124 bool pkgSourceList::Item::SetType(string S)
 125 {
 126    if (S == "deb")
 127    {
 128       Type = Deb;
 129       return true;
 130    }
 131
 132    if (S == "deb-src")
 133    {
 134       Type = DebSrc;
 135       return true;
 136    }
 137
 138    return false;
 139 }
 140                                                                         /*}}}*/
 141 // SourceList::Item::SetURI - Set the URI                               /*{{{*/
 142 // ---------------------------------------------------------------------
 143 /* For simplicity we strip the scheme off the uri */
 144 bool pkgSourceList::Item::SetURI(string S)
 145 {
 146    if (S.empty() == true)
 147       return false;
 148
 149    if (S.find(':') == string::npos)
 150       return false;
 151
 152    S = SubstVar(S,"$(ARCH)",_config->Find("APT::Architecture"));
 153
 154    // Make sure that the URN is / postfixed
 155    URI = S;
 156    if (URI[URI.size() - 1] != '/')
 157       URI += '/';
 158
 159    return true;
 160 }
 161                                                                         /*}}}*/
 162 // SourceList::Item::PackagesURI - Returns a URI to the packages file   /*{{{*/
 163 // ---------------------------------------------------------------------
 164 /* */
 165 string pkgSourceList::Item::PackagesURI() const
 166 {
 167    string Res;
 168    switch (Type)
 169    {
 170       case Deb:
 171       if (Dist[Dist.size() - 1] == '/')
 172          Res = URI + Dist;
 173       else
 174          Res = URI + "dists/" + Dist + '/' + Section +
 175          "/binary-" + _config->Find("APT::Architecture") + '/';
 176
 177       Res += "Packages";
 178       break;
 179
 180       case DebSrc:
 181       if (Dist[Dist.size() - 1] == '/')
 182          Res = URI + Dist;
 183       else
 184          Res = URI + "dists/" + Dist + '/' + Section +
 185          "/source/";
 186
 187       Res += "Sources";
 188       break;
 189    };
 190    return Res;
 191 }
 192                                                                         /*}}}*/
 193 // SourceList::Item::PackagesInfo - Shorter version of the URI          /*{{{*/
 194 // ---------------------------------------------------------------------
 195 /* This is a shorter version that is designed to be < 60 chars or so */
 196 string pkgSourceList::Item::PackagesInfo() const
 197 {
 198    string Res;
 199    switch (Type)
 200    {
 201       case Deb:
 202       Res += SiteOnly(URI) + ' ';
 203       if (Dist[Dist.size() - 1] == '/')
 204          Res += Dist;
 205       else
 206          Res += Dist + '/' + Section;
 207
 208       Res += " Packages";
 209       break;
 210
 211       case DebSrc:
 212       Res += SiteOnly(URI) + ' ';
 213       if (Dist[Dist.size() - 1] == '/')
 214          Res += Dist;
 215       else
 216          Res += Dist + '/' + Section;
 217
 218       Res += " Sources";
 219       break;
 220    };
 221    return Res;
 222 }
 223                                                                         /*}}}*/
 224 // SourceList::Item::ReleaseURI - Returns a URI to the release file     /*{{{*/
 225 // ---------------------------------------------------------------------
 226 /* */
 227 string pkgSourceList::Item::ReleaseURI() const
 228 {
 229    string Res;
 230    switch (Type)
 231    {
 232       case Deb:
 233       if (Dist[Dist.size() - 1] == '/')
 234          Res = URI + Dist;
 235       else
 236          Res = URI + "dists/" + Dist + '/' + Section +
 237          "/binary-" + _config->Find("APT::Architecture") + '/';
 238
 239       Res += "Release";
 240       break;
 241
 242       case DebSrc:
 243       if (Dist[Dist.size() - 1] == '/')
 244          Res = URI + Dist;
 245       else
 246          Res = URI + "dists/" + Dist + '/' + Section +
 247          "/source/";
 248
 249       Res += "Release";
 250       break;
 251    };
 252    return Res;
 253 }
 254                                                                         /*}}}*/
 255 // SourceList::Item::ReleaseInfo - Shorter version of the URI           /*{{{*/
 256 // ---------------------------------------------------------------------
 257 /* This is a shorter version that is designed to be < 60 chars or so */
 258 string pkgSourceList::Item::ReleaseInfo() const
 259 {
 260    string Res;
 261    switch (Type)
 262    {
 263       case Deb:
 264       case DebSrc:
 265       Res += SiteOnly(URI) + ' ';
 266       if (Dist[Dist.size() - 1] == '/')
 267          Res += Dist;
 268       else
 269          Res += Dist + '/' + Section;
 270
 271       Res += " Release";
 272       break;
 273    };
 274    return Res;
 275 }
 276                                                                         /*}}}*/
 277 // SourceList::Item::ArchiveInfo - Shorter version of the archive spec  /*{{{*/
 278 // ---------------------------------------------------------------------
 279 /* This is a shorter version that is designed to be < 60 chars or so */
 280 string pkgSourceList::Item::ArchiveInfo(pkgCache::VerIterator Ver) const
 281 {
 282    string Res;
 283    switch (Type)
 284    {
 285       case DebSrc:
 286       case Deb:
 287       Res += SiteOnly(URI) + ' ';
 288       if (Dist[Dist.size() - 1] == '/')
 289          Res += Dist;
 290       else
 291          Res += Dist + '/' + Section;
 292
 293       Res += " ";
 294       Res += Ver.ParentPkg().Name();
 295       Res += " ";
 296       Res += Ver.VerStr();
 297
 298       break;
 299    };
 300    return Res;
 301 }
 302                                                                         /*}}}*/
 303 // SourceList::Item::ArchiveURI - Returns a URI to the given archive    /*{{{*/
 304 // ---------------------------------------------------------------------
 305 /* */
 306 string pkgSourceList::Item::ArchiveURI(string File) const
 307 {
 308    string Res;
 309    switch (Type)
 310    {
 311       case Deb:
 312       case DebSrc:
 313       Res = URI + File;
 314       break;
 315    };
 316    return Res;
 317 }
 318                                                                         /*}}}*/
 319 // SourceList::Item::SourceInfo - Returns an info line for a source     /*{{{*/
 320 // ---------------------------------------------------------------------
 321 /* */
 322 string pkgSourceList::Item::SourceInfo(string Pkg,string Ver,string Comp) const
 323 {
 324    string Res;
 325    switch (Type)
 326    {
 327       case DebSrc:
 328       case Deb:
 329       Res += SiteOnly(URI) + ' ';
 330       if (Dist[Dist.size() - 1] == '/')
 331          Res += Dist;
 332       else
 333          Res += Dist + '/' + Section;
 334
 335       Res += " ";
 336       Res += Pkg;
 337       Res += " ";
 338       Res += Ver;
 339       if (Comp.empty() == false)
 340          Res += " (" + Comp + ")";
 341       break;
 342    };
 343    return Res;
 344 }
 345                                                                         /*}}}*/
 346 // SourceList::Item::SiteOnly - Strip off the path part of a URI        /*{{{*/
 347 // ---------------------------------------------------------------------
 348 /* */
 349 string pkgSourceList::Item::SiteOnly(string URI) const
 350 {
 351    unsigned int Pos = URI.find(':');
 352    if (Pos == string::npos || Pos + 3 > URI.length())
 353       return URI;
 354    if (URI[Pos + 1] != '/' || URI[Pos + 2] != '/')
 355       return URI;
 356
 357    Pos = URI.find('/',Pos + 3);
 358    if (Pos == string::npos)
 359       return URI;
 360    return string(URI,0,Pos);
 361 }
 362                                                                         /*}}}*/