| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: pkgcachegen.cc,v 1.53.2.1 2003/12/24 23:09:17 mdz Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | Package Cache Generator - Generator for the cache structure. |
| 7 | |
| 8 | This builds the cache structure from the abstract package list parser. |
| 9 | |
| 10 | ##################################################################### */ |
| 11 | /*}}}*/ |
| 12 | // Include Files /*{{{*/ |
| 13 | #define APT_COMPATIBILITY 986 |
| 14 | #include <config.h> |
| 15 | |
| 16 | #include <apt-pkg/pkgcachegen.h> |
| 17 | #include <apt-pkg/error.h> |
| 18 | #include <apt-pkg/version.h> |
| 19 | #include <apt-pkg/progress.h> |
| 20 | #include <apt-pkg/sourcelist.h> |
| 21 | #include <apt-pkg/configuration.h> |
| 22 | #include <apt-pkg/aptconfiguration.h> |
| 23 | #include <apt-pkg/strutl.h> |
| 24 | #include <apt-pkg/sptr.h> |
| 25 | #include <apt-pkg/pkgsystem.h> |
| 26 | #include <apt-pkg/macros.h> |
| 27 | #include <apt-pkg/tagfile.h> |
| 28 | |
| 29 | #include <vector> |
| 30 | #include <sys/stat.h> |
| 31 | #include <unistd.h> |
| 32 | #include <errno.h> |
| 33 | #include <stdio.h> |
| 34 | |
| 35 | #include <apti18n.h> |
| 36 | /*}}}*/ |
| 37 | typedef vector<pkgIndexFile *>::iterator FileIterator; |
| 38 | template <typename Iter> std::vector<Iter*> pkgCacheGenerator::Dynamic<Iter>::toReMap; |
| 39 | |
| 40 | // CacheGenerator::pkgCacheGenerator - Constructor /*{{{*/ |
| 41 | // --------------------------------------------------------------------- |
| 42 | /* We set the dirty flag and make sure that is written to the disk */ |
| 43 | pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) : |
| 44 | Map(*pMap), Cache(pMap,false), Progress(Prog), |
| 45 | FoundFileDeps(0) |
| 46 | { |
| 47 | CurrentFile = 0; |
| 48 | memset(UniqHash,0,sizeof(UniqHash)); |
| 49 | |
| 50 | if (_error->PendingError() == true) |
| 51 | return; |
| 52 | |
| 53 | if (Map.Size() == 0) |
| 54 | { |
| 55 | // Setup the map interface.. |
| 56 | Cache.HeaderP = (pkgCache::Header *)Map.Data(); |
| 57 | if (Map.RawAllocate(sizeof(pkgCache::Header)) == 0 && _error->PendingError() == true) |
| 58 | return; |
| 59 | |
| 60 | Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0])); |
| 61 | |
| 62 | // Starting header |
| 63 | *Cache.HeaderP = pkgCache::Header(); |
| 64 | map_ptrloc const idxVerSysName = WriteStringInMap(_system->VS->Label); |
| 65 | Cache.HeaderP->VerSysName = idxVerSysName; |
| 66 | map_ptrloc const idxArchitecture = WriteStringInMap(_config->Find("APT::Architecture")); |
| 67 | Cache.HeaderP->Architecture = idxArchitecture; |
| 68 | if (unlikely(idxVerSysName == 0 || idxArchitecture == 0)) |
| 69 | return; |
| 70 | Cache.ReMap(); |
| 71 | } |
| 72 | else |
| 73 | { |
| 74 | // Map directly from the existing file |
| 75 | Cache.ReMap(); |
| 76 | Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0])); |
| 77 | if (Cache.VS != _system->VS) |
| 78 | { |
| 79 | _error->Error(_("Cache has an incompatible versioning system")); |
| 80 | return; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | Cache.HeaderP->Dirty = true; |
| 85 | Map.Sync(0,sizeof(pkgCache::Header)); |
| 86 | } |
| 87 | /*}}}*/ |
| 88 | // CacheGenerator::~pkgCacheGenerator - Destructor /*{{{*/ |
| 89 | // --------------------------------------------------------------------- |
| 90 | /* We sync the data then unset the dirty flag in two steps so as to |
| 91 | advoid a problem during a crash */ |
| 92 | pkgCacheGenerator::~pkgCacheGenerator() |
| 93 | { |
| 94 | if (_error->PendingError() == true) |
| 95 | return; |
| 96 | if (Map.Sync() == false) |
| 97 | return; |
| 98 | |
| 99 | Cache.HeaderP->Dirty = false; |
| 100 | Map.Sync(0,sizeof(pkgCache::Header)); |
| 101 | } |
| 102 | /*}}}*/ |
| 103 | void pkgCacheGenerator::ReMap(void const * const oldMap, void const * const newMap) {/*{{{*/ |
| 104 | if (oldMap == newMap) |
| 105 | return; |
| 106 | |
| 107 | Cache.ReMap(false); |
| 108 | |
| 109 | CurrentFile += (pkgCache::PackageFile*) newMap - (pkgCache::PackageFile*) oldMap; |
| 110 | |
| 111 | for (size_t i = 0; i < _count(UniqHash); ++i) |
| 112 | if (UniqHash[i] != 0) |
| 113 | UniqHash[i] += (pkgCache::StringItem*) newMap - (pkgCache::StringItem*) oldMap; |
| 114 | |
| 115 | for (std::vector<pkgCache::GrpIterator*>::const_iterator i = Dynamic<pkgCache::GrpIterator>::toReMap.begin(); |
| 116 | i != Dynamic<pkgCache::GrpIterator>::toReMap.end(); ++i) |
| 117 | (*i)->ReMap(oldMap, newMap); |
| 118 | for (std::vector<pkgCache::PkgIterator*>::const_iterator i = Dynamic<pkgCache::PkgIterator>::toReMap.begin(); |
| 119 | i != Dynamic<pkgCache::PkgIterator>::toReMap.end(); ++i) |
| 120 | (*i)->ReMap(oldMap, newMap); |
| 121 | for (std::vector<pkgCache::VerIterator*>::const_iterator i = Dynamic<pkgCache::VerIterator>::toReMap.begin(); |
| 122 | i != Dynamic<pkgCache::VerIterator>::toReMap.end(); ++i) |
| 123 | (*i)->ReMap(oldMap, newMap); |
| 124 | for (std::vector<pkgCache::DepIterator*>::const_iterator i = Dynamic<pkgCache::DepIterator>::toReMap.begin(); |
| 125 | i != Dynamic<pkgCache::DepIterator>::toReMap.end(); ++i) |
| 126 | (*i)->ReMap(oldMap, newMap); |
| 127 | for (std::vector<pkgCache::DescIterator*>::const_iterator i = Dynamic<pkgCache::DescIterator>::toReMap.begin(); |
| 128 | i != Dynamic<pkgCache::DescIterator>::toReMap.end(); ++i) |
| 129 | (*i)->ReMap(oldMap, newMap); |
| 130 | for (std::vector<pkgCache::PrvIterator*>::const_iterator i = Dynamic<pkgCache::PrvIterator>::toReMap.begin(); |
| 131 | i != Dynamic<pkgCache::PrvIterator>::toReMap.end(); ++i) |
| 132 | (*i)->ReMap(oldMap, newMap); |
| 133 | for (std::vector<pkgCache::PkgFileIterator*>::const_iterator i = Dynamic<pkgCache::PkgFileIterator>::toReMap.begin(); |
| 134 | i != Dynamic<pkgCache::PkgFileIterator>::toReMap.end(); ++i) |
| 135 | (*i)->ReMap(oldMap, newMap); |
| 136 | } /*}}}*/ |
| 137 | // CacheGenerator::WriteStringInMap /*{{{*/ |
| 138 | map_ptrloc pkgCacheGenerator::WriteStringInMap(const char *String, |
| 139 | const unsigned long &Len) { |
| 140 | void const * const oldMap = Map.Data(); |
| 141 | map_ptrloc const index = Map.WriteString(String, Len); |
| 142 | if (index != 0) |
| 143 | ReMap(oldMap, Map.Data()); |
| 144 | return index; |
| 145 | } |
| 146 | /*}}}*/ |
| 147 | // CacheGenerator::WriteStringInMap /*{{{*/ |
| 148 | map_ptrloc pkgCacheGenerator::WriteStringInMap(const char *String) { |
| 149 | void const * const oldMap = Map.Data(); |
| 150 | map_ptrloc const index = Map.WriteString(String); |
| 151 | if (index != 0) |
| 152 | ReMap(oldMap, Map.Data()); |
| 153 | return index; |
| 154 | } |
| 155 | /*}}}*/ |
| 156 | map_ptrloc pkgCacheGenerator::AllocateInMap(const unsigned long &size) {/*{{{*/ |
| 157 | void const * const oldMap = Map.Data(); |
| 158 | map_ptrloc const index = Map.Allocate(size); |
| 159 | if (index != 0) |
| 160 | ReMap(oldMap, Map.Data()); |
| 161 | return index; |
| 162 | } |
| 163 | /*}}}*/ |
| 164 | // CacheGenerator::MergeList - Merge the package list /*{{{*/ |
| 165 | // --------------------------------------------------------------------- |
| 166 | /* This provides the generation of the entries in the cache. Each loop |
| 167 | goes through a single package record from the underlying parse engine. */ |
| 168 | bool pkgCacheGenerator::MergeList(ListParser &List, |
| 169 | pkgCache::VerIterator *OutVer) |
| 170 | { |
| 171 | List.Owner = this; |
| 172 | |
| 173 | unsigned int Counter = 0; |
| 174 | while (List.Step() == true) |
| 175 | { |
| 176 | string const PackageName = List.Package(); |
| 177 | if (PackageName.empty() == true) |
| 178 | return false; |
| 179 | |
| 180 | string const Arch = List.Architecture(); |
| 181 | |
| 182 | // Get a pointer to the package structure |
| 183 | pkgCache::PkgIterator Pkg; |
| 184 | Dynamic<pkgCache::PkgIterator> DynPkg(Pkg); |
| 185 | if (NewPackage(Pkg, PackageName, Arch) == false) |
| 186 | return _error->Error(_("Error occurred while processing %s (NewPackage)"),PackageName.c_str()); |
| 187 | Counter++; |
| 188 | if (Counter % 100 == 0 && Progress != 0) |
| 189 | Progress->Progress(List.Offset()); |
| 190 | |
| 191 | /* Get a pointer to the version structure. We know the list is sorted |
| 192 | so we use that fact in the search. Insertion of new versions is |
| 193 | done with correct sorting */ |
| 194 | string Version = List.Version(); |
| 195 | if (Version.empty() == true) |
| 196 | { |
| 197 | // we first process the package, then the descriptions |
| 198 | // (this has the bonus that we get MMap error when we run out |
| 199 | // of MMap space) |
| 200 | pkgCache::VerIterator Ver(Cache); |
| 201 | Dynamic<pkgCache::VerIterator> DynVer(Ver); |
| 202 | if (List.UsePackage(Pkg, Ver) == false) |
| 203 | return _error->Error(_("Error occurred while processing %s (UsePackage1)"), |
| 204 | PackageName.c_str()); |
| 205 | |
| 206 | // Find the right version to write the description |
| 207 | MD5SumValue CurMd5 = List.Description_md5(); |
| 208 | Ver = Pkg.VersionList(); |
| 209 | |
| 210 | for (; Ver.end() == false; ++Ver) |
| 211 | { |
| 212 | pkgCache::DescIterator Desc = Ver.DescriptionList(); |
| 213 | Dynamic<pkgCache::DescIterator> DynDesc(Desc); |
| 214 | map_ptrloc *LastDesc = &Ver->DescriptionList; |
| 215 | bool duplicate=false; |
| 216 | |
| 217 | // don't add a new description if we have one for the given |
| 218 | // md5 && language |
| 219 | for ( ; Desc.end() == false; Desc++) |
| 220 | if (MD5SumValue(Desc.md5()) == CurMd5 && |
| 221 | Desc.LanguageCode() == List.DescriptionLanguage()) |
| 222 | duplicate=true; |
| 223 | if(duplicate) |
| 224 | continue; |
| 225 | |
| 226 | for (Desc = Ver.DescriptionList(); |
| 227 | Desc.end() == false; |
| 228 | LastDesc = &Desc->NextDesc, Desc++) |
| 229 | { |
| 230 | if (MD5SumValue(Desc.md5()) == CurMd5) |
| 231 | { |
| 232 | // Add new description |
| 233 | void const * const oldMap = Map.Data(); |
| 234 | map_ptrloc const descindex = NewDescription(Desc, List.DescriptionLanguage(), CurMd5, *LastDesc); |
| 235 | if (oldMap != Map.Data()) |
| 236 | LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; |
| 237 | *LastDesc = descindex; |
| 238 | Desc->ParentPkg = Pkg.Index(); |
| 239 | |
| 240 | if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) |
| 241 | return _error->Error(_("Error occurred while processing %s (NewFileDesc1)"),PackageName.c_str()); |
| 242 | break; |
| 243 | } |
| 244 | } |
| 245 | } |
| 246 | |
| 247 | continue; |
| 248 | } |
| 249 | |
| 250 | pkgCache::VerIterator Ver = Pkg.VersionList(); |
| 251 | Dynamic<pkgCache::VerIterator> DynVer(Ver); |
| 252 | map_ptrloc *LastVer = &Pkg->VersionList; |
| 253 | void const * oldMap = Map.Data(); |
| 254 | int Res = 1; |
| 255 | unsigned long const Hash = List.VersionHash(); |
| 256 | for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) |
| 257 | { |
| 258 | Res = Cache.VS->CmpVersion(Version,Ver.VerStr()); |
| 259 | // Version is higher as current version - insert here |
| 260 | if (Res > 0) |
| 261 | break; |
| 262 | // Versionstrings are equal - is hash also equal? |
| 263 | if (Res == 0 && Ver->Hash == Hash) |
| 264 | break; |
| 265 | // proceed with the next till we have either the right |
| 266 | // or we found another version (which will be lower) |
| 267 | } |
| 268 | |
| 269 | /* We already have a version for this item, record that we saw it */ |
| 270 | if (Res == 0 && Ver.end() == false && Ver->Hash == Hash) |
| 271 | { |
| 272 | if (List.UsePackage(Pkg,Ver) == false) |
| 273 | return _error->Error(_("Error occurred while processing %s (UsePackage2)"), |
| 274 | PackageName.c_str()); |
| 275 | |
| 276 | if (NewFileVer(Ver,List) == false) |
| 277 | return _error->Error(_("Error occurred while processing %s (NewFileVer1)"), |
| 278 | PackageName.c_str()); |
| 279 | |
| 280 | // Read only a single record and return |
| 281 | if (OutVer != 0) |
| 282 | { |
| 283 | *OutVer = Ver; |
| 284 | FoundFileDeps |= List.HasFileDeps(); |
| 285 | return true; |
| 286 | } |
| 287 | |
| 288 | continue; |
| 289 | } |
| 290 | |
| 291 | // Add a new version |
| 292 | map_ptrloc const verindex = NewVersion(Ver,Version,*LastVer); |
| 293 | if (verindex == 0 && _error->PendingError()) |
| 294 | return _error->Error(_("Error occurred while processing %s (NewVersion%d)"), |
| 295 | PackageName.c_str(), 1); |
| 296 | |
| 297 | if (oldMap != Map.Data()) |
| 298 | LastVer += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; |
| 299 | *LastVer = verindex; |
| 300 | Ver->ParentPkg = Pkg.Index(); |
| 301 | Ver->Hash = Hash; |
| 302 | |
| 303 | if (List.NewVersion(Ver) == false) |
| 304 | return _error->Error(_("Error occurred while processing %s (NewVersion%d)"), |
| 305 | PackageName.c_str(), 2); |
| 306 | |
| 307 | if (List.UsePackage(Pkg,Ver) == false) |
| 308 | return _error->Error(_("Error occurred while processing %s (UsePackage3)"), |
| 309 | PackageName.c_str()); |
| 310 | |
| 311 | if (NewFileVer(Ver,List) == false) |
| 312 | return _error->Error(_("Error occurred while processing %s (NewVersion%d)"), |
| 313 | PackageName.c_str(), 3); |
| 314 | |
| 315 | // Read only a single record and return |
| 316 | if (OutVer != 0) |
| 317 | { |
| 318 | *OutVer = Ver; |
| 319 | FoundFileDeps |= List.HasFileDeps(); |
| 320 | return true; |
| 321 | } |
| 322 | |
| 323 | /* Record the Description data. Description data always exist in |
| 324 | Packages and Translation-* files. */ |
| 325 | pkgCache::DescIterator Desc = Ver.DescriptionList(); |
| 326 | Dynamic<pkgCache::DescIterator> DynDesc(Desc); |
| 327 | map_ptrloc *LastDesc = &Ver->DescriptionList; |
| 328 | |
| 329 | // Skip to the end of description set |
| 330 | for (; Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++); |
| 331 | |
| 332 | // Add new description |
| 333 | oldMap = Map.Data(); |
| 334 | map_ptrloc const descindex = NewDescription(Desc, List.DescriptionLanguage(), List.Description_md5(), *LastDesc); |
| 335 | if (oldMap != Map.Data()) |
| 336 | LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; |
| 337 | *LastDesc = descindex; |
| 338 | Desc->ParentPkg = Pkg.Index(); |
| 339 | |
| 340 | if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) |
| 341 | return _error->Error(_("Error occurred while processing %s (NewFileDesc2)"),PackageName.c_str()); |
| 342 | } |
| 343 | |
| 344 | FoundFileDeps |= List.HasFileDeps(); |
| 345 | |
| 346 | if (Cache.HeaderP->PackageCount >= (1ULL<<sizeof(Cache.PkgP->ID)*8)-1) |
| 347 | return _error->Error(_("Wow, you exceeded the number of package " |
| 348 | "names this APT is capable of.")); |
| 349 | if (Cache.HeaderP->VersionCount >= (1ULL<<(sizeof(Cache.VerP->ID)*8))-1) |
| 350 | return _error->Error(_("Wow, you exceeded the number of versions " |
| 351 | "this APT is capable of.")); |
| 352 | if (Cache.HeaderP->DescriptionCount >= (1ULL<<(sizeof(Cache.DescP->ID)*8))-1) |
| 353 | return _error->Error(_("Wow, you exceeded the number of descriptions " |
| 354 | "this APT is capable of.")); |
| 355 | if (Cache.HeaderP->DependsCount >= (1ULL<<(sizeof(Cache.DepP->ID)*8))-1ULL) |
| 356 | return _error->Error(_("Wow, you exceeded the number of dependencies " |
| 357 | "this APT is capable of.")); |
| 358 | return true; |
| 359 | } |
| 360 | /*}}}*/ |
| 361 | // CacheGenerator::MergeFileProvides - Merge file provides /*{{{*/ |
| 362 | // --------------------------------------------------------------------- |
| 363 | /* If we found any file depends while parsing the main list we need to |
| 364 | resolve them. Since it is undesired to load the entire list of files |
| 365 | into the cache as virtual packages we do a two stage effort. MergeList |
| 366 | identifies the file depends and this creates Provdies for them by |
| 367 | re-parsing all the indexs. */ |
| 368 | bool pkgCacheGenerator::MergeFileProvides(ListParser &List) |
| 369 | { |
| 370 | List.Owner = this; |
| 371 | |
| 372 | unsigned int Counter = 0; |
| 373 | while (List.Step() == true) |
| 374 | { |
| 375 | string PackageName = List.Package(); |
| 376 | if (PackageName.empty() == true) |
| 377 | return false; |
| 378 | string Version = List.Version(); |
| 379 | if (Version.empty() == true) |
| 380 | continue; |
| 381 | |
| 382 | pkgCache::PkgIterator Pkg = Cache.FindPkg(PackageName); |
| 383 | Dynamic<pkgCache::PkgIterator> DynPkg(Pkg); |
| 384 | if (Pkg.end() == true) |
| 385 | return _error->Error(_("Error occurred while processing %s (FindPkg)"), |
| 386 | PackageName.c_str()); |
| 387 | Counter++; |
| 388 | if (Counter % 100 == 0 && Progress != 0) |
| 389 | Progress->Progress(List.Offset()); |
| 390 | |
| 391 | unsigned long Hash = List.VersionHash(); |
| 392 | pkgCache::VerIterator Ver = Pkg.VersionList(); |
| 393 | Dynamic<pkgCache::VerIterator> DynVer(Ver); |
| 394 | for (; Ver.end() == false; Ver++) |
| 395 | { |
| 396 | if (Ver->Hash == Hash && Version.c_str() == Ver.VerStr()) |
| 397 | { |
| 398 | if (List.CollectFileProvides(Cache,Ver) == false) |
| 399 | return _error->Error(_("Error occurred while processing %s (CollectFileProvides)"),PackageName.c_str()); |
| 400 | break; |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | if (Ver.end() == true) |
| 405 | _error->Warning(_("Package %s %s was not found while processing file dependencies"),PackageName.c_str(),Version.c_str()); |
| 406 | } |
| 407 | |
| 408 | return true; |
| 409 | } |
| 410 | /*}}}*/ |
| 411 | // CacheGenerator::NewGroup - Add a new group /*{{{*/ |
| 412 | // --------------------------------------------------------------------- |
| 413 | /* This creates a new group structure and adds it to the hash table */ |
| 414 | bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, const string &Name) |
| 415 | { |
| 416 | Grp = Cache.FindGrp(Name); |
| 417 | if (Grp.end() == false) |
| 418 | return true; |
| 419 | |
| 420 | // Get a structure |
| 421 | map_ptrloc const Group = AllocateInMap(sizeof(pkgCache::Group)); |
| 422 | if (unlikely(Group == 0)) |
| 423 | return false; |
| 424 | |
| 425 | Grp = pkgCache::GrpIterator(Cache, Cache.GrpP + Group); |
| 426 | map_ptrloc const idxName = WriteStringInMap(Name); |
| 427 | if (unlikely(idxName == 0)) |
| 428 | return false; |
| 429 | Grp->Name = idxName; |
| 430 | |
| 431 | // Insert it into the hash table |
| 432 | unsigned long const Hash = Cache.Hash(Name); |
| 433 | Grp->Next = Cache.HeaderP->GrpHashTable[Hash]; |
| 434 | Cache.HeaderP->GrpHashTable[Hash] = Group; |
| 435 | |
| 436 | Grp->ID = Cache.HeaderP->GroupCount++; |
| 437 | return true; |
| 438 | } |
| 439 | /*}}}*/ |
| 440 | // CacheGenerator::NewPackage - Add a new package /*{{{*/ |
| 441 | // --------------------------------------------------------------------- |
| 442 | /* This creates a new package structure and adds it to the hash table */ |
| 443 | bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name, |
| 444 | const string &Arch) { |
| 445 | pkgCache::GrpIterator Grp; |
| 446 | Dynamic<pkgCache::GrpIterator> DynGrp(Grp); |
| 447 | if (unlikely(NewGroup(Grp, Name) == false)) |
| 448 | return false; |
| 449 | |
| 450 | Pkg = Grp.FindPkg(Arch); |
| 451 | if (Pkg.end() == false) |
| 452 | return true; |
| 453 | |
| 454 | // Get a structure |
| 455 | map_ptrloc const Package = AllocateInMap(sizeof(pkgCache::Package)); |
| 456 | if (unlikely(Package == 0)) |
| 457 | return false; |
| 458 | Pkg = pkgCache::PkgIterator(Cache,Cache.PkgP + Package); |
| 459 | |
| 460 | // Insert the package into our package list |
| 461 | if (Grp->FirstPackage == 0) // the group is new |
| 462 | { |
| 463 | // Insert it into the hash table |
| 464 | unsigned long const Hash = Cache.Hash(Name); |
| 465 | Pkg->NextPackage = Cache.HeaderP->PkgHashTable[Hash]; |
| 466 | Cache.HeaderP->PkgHashTable[Hash] = Package; |
| 467 | Grp->FirstPackage = Package; |
| 468 | } |
| 469 | else // Group the Packages together |
| 470 | { |
| 471 | // this package is the new last package |
| 472 | pkgCache::PkgIterator LastPkg(Cache, Cache.PkgP + Grp->LastPackage); |
| 473 | Pkg->NextPackage = LastPkg->NextPackage; |
| 474 | LastPkg->NextPackage = Package; |
| 475 | } |
| 476 | Grp->LastPackage = Package; |
| 477 | |
| 478 | // Set the name, arch and the ID |
| 479 | Pkg->Name = Grp->Name; |
| 480 | Pkg->Group = Grp.Index(); |
| 481 | // all is mapped to the native architecture |
| 482 | map_ptrloc const idxArch = (Arch == "all") ? Cache.HeaderP->Architecture : WriteUniqString(Arch.c_str()); |
| 483 | if (unlikely(idxArch == 0)) |
| 484 | return false; |
| 485 | Pkg->Arch = idxArch; |
| 486 | Pkg->ID = Cache.HeaderP->PackageCount++; |
| 487 | |
| 488 | return true; |
| 489 | } |
| 490 | /*}}}*/ |
| 491 | // CacheGenerator::NewFileVer - Create a new File<->Version association /*{{{*/ |
| 492 | // --------------------------------------------------------------------- |
| 493 | /* */ |
| 494 | bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver, |
| 495 | ListParser &List) |
| 496 | { |
| 497 | if (CurrentFile == 0) |
| 498 | return true; |
| 499 | |
| 500 | // Get a structure |
| 501 | map_ptrloc const VerFile = AllocateInMap(sizeof(pkgCache::VerFile)); |
| 502 | if (VerFile == 0) |
| 503 | return 0; |
| 504 | |
| 505 | pkgCache::VerFileIterator VF(Cache,Cache.VerFileP + VerFile); |
| 506 | VF->File = CurrentFile - Cache.PkgFileP; |
| 507 | |
| 508 | // Link it to the end of the list |
| 509 | map_ptrloc *Last = &Ver->FileList; |
| 510 | for (pkgCache::VerFileIterator V = Ver.FileList(); V.end() == false; V++) |
| 511 | Last = &V->NextFile; |
| 512 | VF->NextFile = *Last; |
| 513 | *Last = VF.Index(); |
| 514 | |
| 515 | VF->Offset = List.Offset(); |
| 516 | VF->Size = List.Size(); |
| 517 | if (Cache.HeaderP->MaxVerFileSize < VF->Size) |
| 518 | Cache.HeaderP->MaxVerFileSize = VF->Size; |
| 519 | Cache.HeaderP->VerFileCount++; |
| 520 | |
| 521 | return true; |
| 522 | } |
| 523 | /*}}}*/ |
| 524 | // CacheGenerator::NewVersion - Create a new Version /*{{{*/ |
| 525 | // --------------------------------------------------------------------- |
| 526 | /* This puts a version structure in the linked list */ |
| 527 | unsigned long pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver, |
| 528 | const string &VerStr, |
| 529 | unsigned long Next) |
| 530 | { |
| 531 | // Get a structure |
| 532 | map_ptrloc const Version = AllocateInMap(sizeof(pkgCache::Version)); |
| 533 | if (Version == 0) |
| 534 | return 0; |
| 535 | |
| 536 | // Fill it in |
| 537 | Ver = pkgCache::VerIterator(Cache,Cache.VerP + Version); |
| 538 | Ver->NextVer = Next; |
| 539 | Ver->ID = Cache.HeaderP->VersionCount++; |
| 540 | map_ptrloc const idxVerStr = WriteStringInMap(VerStr); |
| 541 | if (unlikely(idxVerStr == 0)) |
| 542 | return 0; |
| 543 | Ver->VerStr = idxVerStr; |
| 544 | |
| 545 | return Version; |
| 546 | } |
| 547 | /*}}}*/ |
| 548 | // CacheGenerator::NewFileDesc - Create a new File<->Desc association /*{{{*/ |
| 549 | // --------------------------------------------------------------------- |
| 550 | /* */ |
| 551 | bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc, |
| 552 | ListParser &List) |
| 553 | { |
| 554 | if (CurrentFile == 0) |
| 555 | return true; |
| 556 | |
| 557 | // Get a structure |
| 558 | map_ptrloc const DescFile = AllocateInMap(sizeof(pkgCache::DescFile)); |
| 559 | if (DescFile == 0) |
| 560 | return false; |
| 561 | |
| 562 | pkgCache::DescFileIterator DF(Cache,Cache.DescFileP + DescFile); |
| 563 | DF->File = CurrentFile - Cache.PkgFileP; |
| 564 | |
| 565 | // Link it to the end of the list |
| 566 | map_ptrloc *Last = &Desc->FileList; |
| 567 | for (pkgCache::DescFileIterator D = Desc.FileList(); D.end() == false; D++) |
| 568 | Last = &D->NextFile; |
| 569 | |
| 570 | DF->NextFile = *Last; |
| 571 | *Last = DF.Index(); |
| 572 | |
| 573 | DF->Offset = List.Offset(); |
| 574 | DF->Size = List.Size(); |
| 575 | if (Cache.HeaderP->MaxDescFileSize < DF->Size) |
| 576 | Cache.HeaderP->MaxDescFileSize = DF->Size; |
| 577 | Cache.HeaderP->DescFileCount++; |
| 578 | |
| 579 | return true; |
| 580 | } |
| 581 | /*}}}*/ |
| 582 | // CacheGenerator::NewDescription - Create a new Description /*{{{*/ |
| 583 | // --------------------------------------------------------------------- |
| 584 | /* This puts a description structure in the linked list */ |
| 585 | map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc, |
| 586 | const string &Lang, |
| 587 | const MD5SumValue &md5sum, |
| 588 | map_ptrloc Next) |
| 589 | { |
| 590 | // Get a structure |
| 591 | map_ptrloc const Description = AllocateInMap(sizeof(pkgCache::Description)); |
| 592 | if (Description == 0) |
| 593 | return 0; |
| 594 | |
| 595 | // Fill it in |
| 596 | Desc = pkgCache::DescIterator(Cache,Cache.DescP + Description); |
| 597 | Desc->NextDesc = Next; |
| 598 | Desc->ID = Cache.HeaderP->DescriptionCount++; |
| 599 | map_ptrloc const idxlanguage_code = WriteStringInMap(Lang); |
| 600 | map_ptrloc const idxmd5sum = WriteStringInMap(md5sum.Value()); |
| 601 | if (unlikely(idxlanguage_code == 0 || idxmd5sum == 0)) |
| 602 | return 0; |
| 603 | Desc->language_code = idxlanguage_code; |
| 604 | Desc->md5sum = idxmd5sum; |
| 605 | |
| 606 | return Description; |
| 607 | } |
| 608 | /*}}}*/ |
| 609 | // CacheGenerator::FinishCache - do various finish operations /*{{{*/ |
| 610 | // --------------------------------------------------------------------- |
| 611 | /* This prepares the Cache for delivery */ |
| 612 | bool pkgCacheGenerator::FinishCache(OpProgress *Progress) |
| 613 | { |
| 614 | // FIXME: add progress reporting for this operation |
| 615 | // Do we have different architectures in your groups ? |
| 616 | vector<string> archs = APT::Configuration::getArchitectures(); |
| 617 | if (archs.size() > 1) |
| 618 | { |
| 619 | // Create Conflicts in between the group |
| 620 | pkgCache::GrpIterator G = GetCache().GrpBegin(); |
| 621 | Dynamic<pkgCache::GrpIterator> DynG(G); |
| 622 | for (; G.end() != true; G++) |
| 623 | { |
| 624 | string const PkgName = G.Name(); |
| 625 | pkgCache::PkgIterator P = G.PackageList(); |
| 626 | Dynamic<pkgCache::PkgIterator> DynP(P); |
| 627 | for (; P.end() != true; P = G.NextPkg(P)) |
| 628 | { |
| 629 | pkgCache::PkgIterator allPkg; |
| 630 | Dynamic<pkgCache::PkgIterator> DynallPkg(allPkg); |
| 631 | pkgCache::VerIterator V = P.VersionList(); |
| 632 | Dynamic<pkgCache::VerIterator> DynV(V); |
| 633 | for (; V.end() != true; V++) |
| 634 | { |
| 635 | char const * const Arch = P.Arch(); |
| 636 | map_ptrloc *OldDepLast = NULL; |
| 637 | /* MultiArch handling introduces a lot of implicit Dependencies: |
| 638 | - MultiArch: same → Co-Installable if they have the same version |
| 639 | - Architecture: all → Need to be Co-Installable for internal reasons |
| 640 | - All others conflict with all other group members */ |
| 641 | bool const coInstall = ((V->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same); |
| 642 | for (vector<string>::const_iterator A = archs.begin(); A != archs.end(); ++A) |
| 643 | { |
| 644 | if (Arch == 0 || *A == Arch) |
| 645 | continue; |
| 646 | /* We allow only one installed arch at the time |
| 647 | per group, therefore each group member conflicts |
| 648 | with all other group members */ |
| 649 | pkgCache::PkgIterator D = G.FindPkg(*A); |
| 650 | Dynamic<pkgCache::PkgIterator> DynD(D); |
| 651 | if (D.end() == true) |
| 652 | continue; |
| 653 | if (coInstall == true) |
| 654 | { |
| 655 | // Replaces: ${self}:other ( << ${binary:Version}) |
| 656 | NewDepends(D, V, V.VerStr(), |
| 657 | pkgCache::Dep::Less, pkgCache::Dep::Replaces, |
| 658 | OldDepLast); |
| 659 | // Breaks: ${self}:other (!= ${binary:Version}) |
| 660 | NewDepends(D, V, V.VerStr(), |
| 661 | pkgCache::Dep::NotEquals, pkgCache::Dep::DpkgBreaks, |
| 662 | OldDepLast); |
| 663 | } else { |
| 664 | // Conflicts: ${self}:other |
| 665 | NewDepends(D, V, "", |
| 666 | pkgCache::Dep::NoOp, pkgCache::Dep::Conflicts, |
| 667 | OldDepLast); |
| 668 | } |
| 669 | } |
| 670 | } |
| 671 | } |
| 672 | } |
| 673 | } |
| 674 | return true; |
| 675 | } |
| 676 | /*}}}*/ |
| 677 | // CacheGenerator::NewDepends - Create a dependency element /*{{{*/ |
| 678 | // --------------------------------------------------------------------- |
| 679 | /* This creates a dependency element in the tree. It is linked to the |
| 680 | version and to the package that it is pointing to. */ |
| 681 | bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg, |
| 682 | pkgCache::VerIterator &Ver, |
| 683 | string const &Version, |
| 684 | unsigned int const &Op, |
| 685 | unsigned int const &Type, |
| 686 | map_ptrloc *OldDepLast) |
| 687 | { |
| 688 | void const * const oldMap = Map.Data(); |
| 689 | // Get a structure |
| 690 | map_ptrloc const Dependency = AllocateInMap(sizeof(pkgCache::Dependency)); |
| 691 | if (unlikely(Dependency == 0)) |
| 692 | return false; |
| 693 | |
| 694 | // Fill it in |
| 695 | pkgCache::DepIterator Dep(Cache,Cache.DepP + Dependency); |
| 696 | Dynamic<pkgCache::DepIterator> DynDep(Dep); |
| 697 | Dep->ParentVer = Ver.Index(); |
| 698 | Dep->Type = Type; |
| 699 | Dep->CompareOp = Op; |
| 700 | Dep->ID = Cache.HeaderP->DependsCount++; |
| 701 | |
| 702 | // Probe the reverse dependency list for a version string that matches |
| 703 | if (Version.empty() == false) |
| 704 | { |
| 705 | /* for (pkgCache::DepIterator I = Pkg.RevDependsList(); I.end() == false; I++) |
| 706 | if (I->Version != 0 && I.TargetVer() == Version) |
| 707 | Dep->Version = I->Version;*/ |
| 708 | if (Dep->Version == 0) { |
| 709 | map_ptrloc const index = WriteStringInMap(Version); |
| 710 | if (unlikely(index == 0)) |
| 711 | return false; |
| 712 | Dep->Version = index; |
| 713 | } |
| 714 | } |
| 715 | |
| 716 | // Link it to the package |
| 717 | Dep->Package = Pkg.Index(); |
| 718 | Dep->NextRevDepends = Pkg->RevDepends; |
| 719 | Pkg->RevDepends = Dep.Index(); |
| 720 | |
| 721 | // Do we know where to link the Dependency to? |
| 722 | if (OldDepLast == NULL) |
| 723 | { |
| 724 | OldDepLast = &Ver->DependsList; |
| 725 | for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++) |
| 726 | OldDepLast = &D->NextDepends; |
| 727 | } else if (oldMap != Map.Data()) |
| 728 | OldDepLast += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; |
| 729 | |
| 730 | Dep->NextDepends = *OldDepLast; |
| 731 | *OldDepLast = Dep.Index(); |
| 732 | OldDepLast = &Dep->NextDepends; |
| 733 | |
| 734 | return true; |
| 735 | } |
| 736 | /*}}}*/ |
| 737 | // ListParser::NewDepends - Create the environment for a new dependency /*{{{*/ |
| 738 | // --------------------------------------------------------------------- |
| 739 | /* This creates a Group and the Package to link this dependency to if |
| 740 | needed and handles also the caching of the old endpoint */ |
| 741 | bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator &Ver, |
| 742 | const string &PackageName, |
| 743 | const string &Arch, |
| 744 | const string &Version, |
| 745 | unsigned int Op, |
| 746 | unsigned int Type) |
| 747 | { |
| 748 | pkgCache::GrpIterator Grp; |
| 749 | Dynamic<pkgCache::GrpIterator> DynGrp(Grp); |
| 750 | if (unlikely(Owner->NewGroup(Grp, PackageName) == false)) |
| 751 | return false; |
| 752 | |
| 753 | // Locate the target package |
| 754 | pkgCache::PkgIterator Pkg = Grp.FindPkg(Arch); |
| 755 | Dynamic<pkgCache::PkgIterator> DynPkg(Pkg); |
| 756 | if (Pkg.end() == true) { |
| 757 | if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false)) |
| 758 | return false; |
| 759 | } |
| 760 | |
| 761 | // Is it a file dependency? |
| 762 | if (unlikely(PackageName[0] == '/')) |
| 763 | FoundFileDeps = true; |
| 764 | |
| 765 | /* Caching the old end point speeds up generation substantially */ |
| 766 | if (OldDepVer != Ver) { |
| 767 | OldDepLast = NULL; |
| 768 | OldDepVer = Ver; |
| 769 | } |
| 770 | |
| 771 | return Owner->NewDepends(Pkg, Ver, Version, Op, Type, OldDepLast); |
| 772 | } |
| 773 | /*}}}*/ |
| 774 | // ListParser::NewProvides - Create a Provides element /*{{{*/ |
| 775 | // --------------------------------------------------------------------- |
| 776 | /* */ |
| 777 | bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator &Ver, |
| 778 | const string &PkgName, |
| 779 | const string &PkgArch, |
| 780 | const string &Version) |
| 781 | { |
| 782 | pkgCache &Cache = Owner->Cache; |
| 783 | |
| 784 | // We do not add self referencing provides |
| 785 | if (Ver.ParentPkg().Name() == PkgName && (PkgArch == Ver.ParentPkg().Arch() || |
| 786 | (PkgArch == "all" && strcmp((Cache.StrP + Cache.HeaderP->Architecture), Ver.ParentPkg().Arch()) == 0))) |
| 787 | return true; |
| 788 | |
| 789 | // Get a structure |
| 790 | map_ptrloc const Provides = Owner->AllocateInMap(sizeof(pkgCache::Provides)); |
| 791 | if (unlikely(Provides == 0)) |
| 792 | return false; |
| 793 | Cache.HeaderP->ProvidesCount++; |
| 794 | |
| 795 | // Fill it in |
| 796 | pkgCache::PrvIterator Prv(Cache,Cache.ProvideP + Provides,Cache.PkgP); |
| 797 | Dynamic<pkgCache::PrvIterator> DynPrv(Prv); |
| 798 | Prv->Version = Ver.Index(); |
| 799 | Prv->NextPkgProv = Ver->ProvidesList; |
| 800 | Ver->ProvidesList = Prv.Index(); |
| 801 | if (Version.empty() == false && unlikely((Prv->ProvideVersion = WriteString(Version)) == 0)) |
| 802 | return false; |
| 803 | |
| 804 | // Locate the target package |
| 805 | pkgCache::PkgIterator Pkg; |
| 806 | Dynamic<pkgCache::PkgIterator> DynPkg(Pkg); |
| 807 | if (unlikely(Owner->NewPackage(Pkg,PkgName, PkgArch) == false)) |
| 808 | return false; |
| 809 | |
| 810 | // Link it to the package |
| 811 | Prv->ParentPkg = Pkg.Index(); |
| 812 | Prv->NextProvides = Pkg->ProvidesList; |
| 813 | Pkg->ProvidesList = Prv.Index(); |
| 814 | |
| 815 | return true; |
| 816 | } |
| 817 | /*}}}*/ |
| 818 | // CacheGenerator::SelectFile - Select the current file being parsed /*{{{*/ |
| 819 | // --------------------------------------------------------------------- |
| 820 | /* This is used to select which file is to be associated with all newly |
| 821 | added versions. The caller is responsible for setting the IMS fields. */ |
| 822 | bool pkgCacheGenerator::SelectFile(const string &File,const string &Site, |
| 823 | const pkgIndexFile &Index, |
| 824 | unsigned long Flags) |
| 825 | { |
| 826 | // Get some space for the structure |
| 827 | map_ptrloc const idxFile = AllocateInMap(sizeof(*CurrentFile)); |
| 828 | if (unlikely(idxFile == 0)) |
| 829 | return false; |
| 830 | CurrentFile = Cache.PkgFileP + idxFile; |
| 831 | |
| 832 | // Fill it in |
| 833 | map_ptrloc const idxFileName = WriteStringInMap(File); |
| 834 | map_ptrloc const idxSite = WriteUniqString(Site); |
| 835 | if (unlikely(idxFileName == 0 || idxSite == 0)) |
| 836 | return false; |
| 837 | CurrentFile->FileName = idxFileName; |
| 838 | CurrentFile->Site = idxSite; |
| 839 | CurrentFile->NextFile = Cache.HeaderP->FileList; |
| 840 | CurrentFile->Flags = Flags; |
| 841 | CurrentFile->ID = Cache.HeaderP->PackageFileCount; |
| 842 | map_ptrloc const idxIndexType = WriteUniqString(Index.GetType()->Label); |
| 843 | if (unlikely(idxIndexType == 0)) |
| 844 | return false; |
| 845 | CurrentFile->IndexType = idxIndexType; |
| 846 | PkgFileName = File; |
| 847 | Cache.HeaderP->FileList = CurrentFile - Cache.PkgFileP; |
| 848 | Cache.HeaderP->PackageFileCount++; |
| 849 | |
| 850 | if (Progress != 0) |
| 851 | Progress->SubProgress(Index.Size()); |
| 852 | return true; |
| 853 | } |
| 854 | /*}}}*/ |
| 855 | // CacheGenerator::WriteUniqueString - Insert a unique string /*{{{*/ |
| 856 | // --------------------------------------------------------------------- |
| 857 | /* This is used to create handles to strings. Given the same text it |
| 858 | always returns the same number */ |
| 859 | unsigned long pkgCacheGenerator::WriteUniqString(const char *S, |
| 860 | unsigned int Size) |
| 861 | { |
| 862 | /* We use a very small transient hash table here, this speeds up generation |
| 863 | by a fair amount on slower machines */ |
| 864 | pkgCache::StringItem *&Bucket = UniqHash[(S[0]*5 + S[1]) % _count(UniqHash)]; |
| 865 | if (Bucket != 0 && |
| 866 | stringcmp(S,S+Size,Cache.StrP + Bucket->String) == 0) |
| 867 | return Bucket->String; |
| 868 | |
| 869 | // Search for an insertion point |
| 870 | pkgCache::StringItem *I = Cache.StringItemP + Cache.HeaderP->StringList; |
| 871 | int Res = 1; |
| 872 | map_ptrloc *Last = &Cache.HeaderP->StringList; |
| 873 | for (; I != Cache.StringItemP; Last = &I->NextItem, |
| 874 | I = Cache.StringItemP + I->NextItem) |
| 875 | { |
| 876 | Res = stringcmp(S,S+Size,Cache.StrP + I->String); |
| 877 | if (Res >= 0) |
| 878 | break; |
| 879 | } |
| 880 | |
| 881 | // Match |
| 882 | if (Res == 0) |
| 883 | { |
| 884 | Bucket = I; |
| 885 | return I->String; |
| 886 | } |
| 887 | |
| 888 | // Get a structure |
| 889 | void const * const oldMap = Map.Data(); |
| 890 | map_ptrloc const Item = AllocateInMap(sizeof(pkgCache::StringItem)); |
| 891 | if (Item == 0) |
| 892 | return 0; |
| 893 | |
| 894 | map_ptrloc const idxString = WriteStringInMap(S,Size); |
| 895 | if (unlikely(idxString == 0)) |
| 896 | return 0; |
| 897 | if (oldMap != Map.Data()) { |
| 898 | Last += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; |
| 899 | I += (pkgCache::StringItem*) Map.Data() - (pkgCache::StringItem*) oldMap; |
| 900 | } |
| 901 | *Last = Item; |
| 902 | |
| 903 | // Fill in the structure |
| 904 | pkgCache::StringItem *ItemP = Cache.StringItemP + Item; |
| 905 | ItemP->NextItem = I - Cache.StringItemP; |
| 906 | ItemP->String = idxString; |
| 907 | |
| 908 | Bucket = ItemP; |
| 909 | return ItemP->String; |
| 910 | } |
| 911 | /*}}}*/ |
| 912 | // CheckValidity - Check that a cache is up-to-date /*{{{*/ |
| 913 | // --------------------------------------------------------------------- |
| 914 | /* This just verifies that each file in the list of index files exists, |
| 915 | has matching attributes with the cache and the cache does not have |
| 916 | any extra files. */ |
| 917 | static bool CheckValidity(const string &CacheFile, FileIterator Start, |
| 918 | FileIterator End,MMap **OutMap = 0) |
| 919 | { |
| 920 | bool const Debug = _config->FindB("Debug::pkgCacheGen", false); |
| 921 | // No file, certainly invalid |
| 922 | if (CacheFile.empty() == true || FileExists(CacheFile) == false) |
| 923 | { |
| 924 | if (Debug == true) |
| 925 | std::clog << "CacheFile doesn't exist" << std::endl; |
| 926 | return false; |
| 927 | } |
| 928 | |
| 929 | // Map it |
| 930 | FileFd CacheF(CacheFile,FileFd::ReadOnly); |
| 931 | SPtr<MMap> Map = new MMap(CacheF,0); |
| 932 | pkgCache Cache(Map); |
| 933 | if (_error->PendingError() == true || Map->Size() == 0) |
| 934 | { |
| 935 | if (Debug == true) |
| 936 | std::clog << "Errors are pending or Map is empty()" << std::endl; |
| 937 | _error->Discard(); |
| 938 | return false; |
| 939 | } |
| 940 | |
| 941 | /* Now we check every index file, see if it is in the cache, |
| 942 | verify the IMS data and check that it is on the disk too.. */ |
| 943 | SPtrArray<bool> Visited = new bool[Cache.HeaderP->PackageFileCount]; |
| 944 | memset(Visited,0,sizeof(*Visited)*Cache.HeaderP->PackageFileCount); |
| 945 | for (; Start != End; Start++) |
| 946 | { |
| 947 | if (Debug == true) |
| 948 | std::clog << "Checking PkgFile " << (*Start)->Describe() << ": "; |
| 949 | if ((*Start)->HasPackages() == false) |
| 950 | { |
| 951 | if (Debug == true) |
| 952 | std::clog << "Has NO packages" << std::endl; |
| 953 | continue; |
| 954 | } |
| 955 | |
| 956 | if ((*Start)->Exists() == false) |
| 957 | { |
| 958 | #if 0 // mvo: we no longer give a message here (Default Sources spec) |
| 959 | _error->WarningE("stat",_("Couldn't stat source package list %s"), |
| 960 | (*Start)->Describe().c_str()); |
| 961 | #endif |
| 962 | if (Debug == true) |
| 963 | std::clog << "file doesn't exist" << std::endl; |
| 964 | continue; |
| 965 | } |
| 966 | |
| 967 | // FindInCache is also expected to do an IMS check. |
| 968 | pkgCache::PkgFileIterator File = (*Start)->FindInCache(Cache); |
| 969 | if (File.end() == true) |
| 970 | { |
| 971 | if (Debug == true) |
| 972 | std::clog << "FindInCache returned end-Pointer" << std::endl; |
| 973 | return false; |
| 974 | } |
| 975 | |
| 976 | Visited[File->ID] = true; |
| 977 | if (Debug == true) |
| 978 | std::clog << "with ID " << File->ID << " is valid" << std::endl; |
| 979 | } |
| 980 | |
| 981 | for (unsigned I = 0; I != Cache.HeaderP->PackageFileCount; I++) |
| 982 | if (Visited[I] == false) |
| 983 | { |
| 984 | if (Debug == true) |
| 985 | std::clog << "File with ID" << I << " wasn't visited" << std::endl; |
| 986 | return false; |
| 987 | } |
| 988 | |
| 989 | if (_error->PendingError() == true) |
| 990 | { |
| 991 | if (Debug == true) |
| 992 | { |
| 993 | std::clog << "Validity failed because of pending errors:" << std::endl; |
| 994 | _error->DumpErrors(); |
| 995 | } |
| 996 | _error->Discard(); |
| 997 | return false; |
| 998 | } |
| 999 | |
| 1000 | if (OutMap != 0) |
| 1001 | *OutMap = Map.UnGuard(); |
| 1002 | return true; |
| 1003 | } |
| 1004 | /*}}}*/ |
| 1005 | // ComputeSize - Compute the total size of a bunch of files /*{{{*/ |
| 1006 | // --------------------------------------------------------------------- |
| 1007 | /* Size is kind of an abstract notion that is only used for the progress |
| 1008 | meter */ |
| 1009 | static unsigned long ComputeSize(FileIterator Start,FileIterator End) |
| 1010 | { |
| 1011 | unsigned long TotalSize = 0; |
| 1012 | for (; Start != End; Start++) |
| 1013 | { |
| 1014 | if ((*Start)->HasPackages() == false) |
| 1015 | continue; |
| 1016 | TotalSize += (*Start)->Size(); |
| 1017 | } |
| 1018 | return TotalSize; |
| 1019 | } |
| 1020 | /*}}}*/ |
| 1021 | // BuildCache - Merge the list of index files into the cache /*{{{*/ |
| 1022 | // --------------------------------------------------------------------- |
| 1023 | /* */ |
| 1024 | static bool BuildCache(pkgCacheGenerator &Gen, |
| 1025 | OpProgress *Progress, |
| 1026 | unsigned long &CurrentSize,unsigned long TotalSize, |
| 1027 | FileIterator Start, FileIterator End) |
| 1028 | { |
| 1029 | FileIterator I; |
| 1030 | for (I = Start; I != End; I++) |
| 1031 | { |
| 1032 | if ((*I)->HasPackages() == false) |
| 1033 | continue; |
| 1034 | |
| 1035 | if ((*I)->Exists() == false) |
| 1036 | continue; |
| 1037 | |
| 1038 | if ((*I)->FindInCache(Gen.GetCache()).end() == false) |
| 1039 | { |
| 1040 | _error->Warning("Duplicate sources.list entry %s", |
| 1041 | (*I)->Describe().c_str()); |
| 1042 | continue; |
| 1043 | } |
| 1044 | |
| 1045 | unsigned long Size = (*I)->Size(); |
| 1046 | if (Progress != NULL) |
| 1047 | Progress->OverallProgress(CurrentSize,TotalSize,Size,_("Reading package lists")); |
| 1048 | CurrentSize += Size; |
| 1049 | |
| 1050 | if ((*I)->Merge(Gen,Progress) == false) |
| 1051 | return false; |
| 1052 | } |
| 1053 | |
| 1054 | if (Gen.HasFileDeps() == true) |
| 1055 | { |
| 1056 | if (Progress != NULL) |
| 1057 | Progress->Done(); |
| 1058 | TotalSize = ComputeSize(Start, End); |
| 1059 | CurrentSize = 0; |
| 1060 | for (I = Start; I != End; I++) |
| 1061 | { |
| 1062 | unsigned long Size = (*I)->Size(); |
| 1063 | if (Progress != NULL) |
| 1064 | Progress->OverallProgress(CurrentSize,TotalSize,Size,_("Collecting File Provides")); |
| 1065 | CurrentSize += Size; |
| 1066 | if ((*I)->MergeFileProvides(Gen,Progress) == false) |
| 1067 | return false; |
| 1068 | } |
| 1069 | } |
| 1070 | |
| 1071 | return true; |
| 1072 | } |
| 1073 | /*}}}*/ |
| 1074 | // CacheGenerator::CreateDynamicMMap - load an mmap with configuration options /*{{{*/ |
| 1075 | DynamicMMap* pkgCacheGenerator::CreateDynamicMMap(FileFd *CacheF, unsigned long Flags) { |
| 1076 | unsigned long const MapStart = _config->FindI("APT::Cache-Start", 24*1024*1024); |
| 1077 | unsigned long const MapGrow = _config->FindI("APT::Cache-Grow", 1*1024*1024); |
| 1078 | unsigned long const MapLimit = _config->FindI("APT::Cache-Limit", 0); |
| 1079 | Flags |= MMap::Moveable; |
| 1080 | if (_config->FindB("APT::Cache-Fallback", false) == true) |
| 1081 | Flags |= MMap::Fallback; |
| 1082 | if (CacheF != NULL) |
| 1083 | return new DynamicMMap(*CacheF, Flags, MapStart, MapGrow, MapLimit); |
| 1084 | else |
| 1085 | return new DynamicMMap(Flags, MapStart, MapGrow, MapLimit); |
| 1086 | } |
| 1087 | /*}}}*/ |
| 1088 | // CacheGenerator::MakeStatusCache - Construct the status cache /*{{{*/ |
| 1089 | // --------------------------------------------------------------------- |
| 1090 | /* This makes sure that the status cache (the cache that has all |
| 1091 | index files from the sources list and all local ones) is ready |
| 1092 | to be mmaped. If OutMap is not zero then a MMap object representing |
| 1093 | the cache will be stored there. This is pretty much mandetory if you |
| 1094 | are using AllowMem. AllowMem lets the function be run as non-root |
| 1095 | where it builds the cache 'fast' into a memory buffer. */ |
| 1096 | __deprecated bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, |
| 1097 | MMap **OutMap, bool AllowMem) |
| 1098 | { return pkgCacheGenerator::MakeStatusCache(List, &Progress, OutMap, AllowMem); } |
| 1099 | bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress, |
| 1100 | MMap **OutMap,bool AllowMem) |
| 1101 | { |
| 1102 | bool const Debug = _config->FindB("Debug::pkgCacheGen", false); |
| 1103 | |
| 1104 | vector<pkgIndexFile *> Files; |
| 1105 | for (vector<metaIndex *>::const_iterator i = List.begin(); |
| 1106 | i != List.end(); |
| 1107 | i++) |
| 1108 | { |
| 1109 | vector <pkgIndexFile *> *Indexes = (*i)->GetIndexFiles(); |
| 1110 | for (vector<pkgIndexFile *>::const_iterator j = Indexes->begin(); |
| 1111 | j != Indexes->end(); |
| 1112 | j++) |
| 1113 | Files.push_back (*j); |
| 1114 | } |
| 1115 | |
| 1116 | unsigned long const EndOfSource = Files.size(); |
| 1117 | if (_system->AddStatusFiles(Files) == false) |
| 1118 | return false; |
| 1119 | |
| 1120 | // Decide if we can write to the files.. |
| 1121 | string const CacheFile = _config->FindFile("Dir::Cache::pkgcache"); |
| 1122 | string const SrcCacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); |
| 1123 | |
| 1124 | // ensure the cache directory exists |
| 1125 | if (CacheFile.empty() == false || SrcCacheFile.empty() == false) |
| 1126 | { |
| 1127 | string dir = _config->FindDir("Dir::Cache"); |
| 1128 | size_t const len = dir.size(); |
| 1129 | if (len > 5 && dir.find("/apt/", len - 6, 5) == len - 5) |
| 1130 | dir = dir.substr(0, len - 5); |
| 1131 | if (CacheFile.empty() == false) |
| 1132 | CreateDirectory(dir, flNotFile(CacheFile)); |
| 1133 | if (SrcCacheFile.empty() == false) |
| 1134 | CreateDirectory(dir, flNotFile(SrcCacheFile)); |
| 1135 | } |
| 1136 | |
| 1137 | // Decide if we can write to the cache |
| 1138 | bool Writeable = false; |
| 1139 | if (CacheFile.empty() == false) |
| 1140 | Writeable = access(flNotFile(CacheFile).c_str(),W_OK) == 0; |
| 1141 | else |
| 1142 | if (SrcCacheFile.empty() == false) |
| 1143 | Writeable = access(flNotFile(SrcCacheFile).c_str(),W_OK) == 0; |
| 1144 | if (Debug == true) |
| 1145 | std::clog << "Do we have write-access to the cache files? " << (Writeable ? "YES" : "NO") << std::endl; |
| 1146 | |
| 1147 | if (Writeable == false && AllowMem == false && CacheFile.empty() == false) |
| 1148 | return _error->Error(_("Unable to write to %s"),flNotFile(CacheFile).c_str()); |
| 1149 | |
| 1150 | if (Progress != NULL) |
| 1151 | Progress->OverallProgress(0,1,1,_("Reading package lists")); |
| 1152 | |
| 1153 | // Cache is OK, Fin. |
| 1154 | if (CheckValidity(CacheFile,Files.begin(),Files.end(),OutMap) == true) |
| 1155 | { |
| 1156 | if (Progress != NULL) |
| 1157 | Progress->OverallProgress(1,1,1,_("Reading package lists")); |
| 1158 | if (Debug == true) |
| 1159 | std::clog << "pkgcache.bin is valid - no need to build anything" << std::endl; |
| 1160 | return true; |
| 1161 | } |
| 1162 | else if (Debug == true) |
| 1163 | std::clog << "pkgcache.bin is NOT valid" << std::endl; |
| 1164 | |
| 1165 | /* At this point we know we need to reconstruct the package cache, |
| 1166 | begin. */ |
| 1167 | SPtr<FileFd> CacheF; |
| 1168 | SPtr<DynamicMMap> Map; |
| 1169 | if (Writeable == true && CacheFile.empty() == false) |
| 1170 | { |
| 1171 | _error->PushToStack(); |
| 1172 | unlink(CacheFile.c_str()); |
| 1173 | CacheF = new FileFd(CacheFile,FileFd::WriteAtomic); |
| 1174 | fchmod(CacheF->Fd(),0644); |
| 1175 | Map = CreateDynamicMMap(CacheF, MMap::Public); |
| 1176 | if (_error->PendingError() == true) |
| 1177 | { |
| 1178 | delete CacheF.UnGuard(); |
| 1179 | delete Map.UnGuard(); |
| 1180 | if (Debug == true) |
| 1181 | std::clog << "Open filebased MMap FAILED" << std::endl; |
| 1182 | Writeable = false; |
| 1183 | if (AllowMem == false) |
| 1184 | { |
| 1185 | _error->MergeWithStack(); |
| 1186 | return false; |
| 1187 | } |
| 1188 | _error->RevertToStack(); |
| 1189 | } |
| 1190 | else if (Debug == true) |
| 1191 | { |
| 1192 | _error->MergeWithStack(); |
| 1193 | std::clog << "Open filebased MMap" << std::endl; |
| 1194 | } |
| 1195 | } |
| 1196 | if (Writeable == false || CacheFile.empty() == true) |
| 1197 | { |
| 1198 | // Just build it in memory.. |
| 1199 | Map = CreateDynamicMMap(NULL); |
| 1200 | if (Debug == true) |
| 1201 | std::clog << "Open memory Map (not filebased)" << std::endl; |
| 1202 | } |
| 1203 | |
| 1204 | // Lets try the source cache. |
| 1205 | unsigned long CurrentSize = 0; |
| 1206 | unsigned long TotalSize = 0; |
| 1207 | if (CheckValidity(SrcCacheFile,Files.begin(), |
| 1208 | Files.begin()+EndOfSource) == true) |
| 1209 | { |
| 1210 | if (Debug == true) |
| 1211 | std::clog << "srcpkgcache.bin is valid - populate MMap with it." << std::endl; |
| 1212 | // Preload the map with the source cache |
| 1213 | FileFd SCacheF(SrcCacheFile,FileFd::ReadOnly); |
| 1214 | unsigned long const alloc = Map->RawAllocate(SCacheF.Size()); |
| 1215 | if ((alloc == 0 && _error->PendingError()) |
| 1216 | || SCacheF.Read((unsigned char *)Map->Data() + alloc, |
| 1217 | SCacheF.Size()) == false) |
| 1218 | return false; |
| 1219 | |
| 1220 | TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end()); |
| 1221 | |
| 1222 | // Build the status cache |
| 1223 | pkgCacheGenerator Gen(Map.Get(),Progress); |
| 1224 | if (_error->PendingError() == true) |
| 1225 | return false; |
| 1226 | if (BuildCache(Gen,Progress,CurrentSize,TotalSize, |
| 1227 | Files.begin()+EndOfSource,Files.end()) == false) |
| 1228 | return false; |
| 1229 | |
| 1230 | // FIXME: move me to a better place |
| 1231 | Gen.FinishCache(Progress); |
| 1232 | } |
| 1233 | else |
| 1234 | { |
| 1235 | if (Debug == true) |
| 1236 | std::clog << "srcpkgcache.bin is NOT valid - rebuild" << std::endl; |
| 1237 | TotalSize = ComputeSize(Files.begin(),Files.end()); |
| 1238 | |
| 1239 | // Build the source cache |
| 1240 | pkgCacheGenerator Gen(Map.Get(),Progress); |
| 1241 | if (_error->PendingError() == true) |
| 1242 | return false; |
| 1243 | if (BuildCache(Gen,Progress,CurrentSize,TotalSize, |
| 1244 | Files.begin(),Files.begin()+EndOfSource) == false) |
| 1245 | return false; |
| 1246 | |
| 1247 | // Write it back |
| 1248 | if (Writeable == true && SrcCacheFile.empty() == false) |
| 1249 | { |
| 1250 | FileFd SCacheF(SrcCacheFile,FileFd::WriteAtomic); |
| 1251 | if (_error->PendingError() == true) |
| 1252 | return false; |
| 1253 | |
| 1254 | fchmod(SCacheF.Fd(),0644); |
| 1255 | |
| 1256 | // Write out the main data |
| 1257 | if (SCacheF.Write(Map->Data(),Map->Size()) == false) |
| 1258 | return _error->Error(_("IO Error saving source cache")); |
| 1259 | SCacheF.Sync(); |
| 1260 | |
| 1261 | // Write out the proper header |
| 1262 | Gen.GetCache().HeaderP->Dirty = false; |
| 1263 | if (SCacheF.Seek(0) == false || |
| 1264 | SCacheF.Write(Map->Data(),sizeof(*Gen.GetCache().HeaderP)) == false) |
| 1265 | return _error->Error(_("IO Error saving source cache")); |
| 1266 | Gen.GetCache().HeaderP->Dirty = true; |
| 1267 | SCacheF.Sync(); |
| 1268 | } |
| 1269 | |
| 1270 | // Build the status cache |
| 1271 | if (BuildCache(Gen,Progress,CurrentSize,TotalSize, |
| 1272 | Files.begin()+EndOfSource,Files.end()) == false) |
| 1273 | return false; |
| 1274 | |
| 1275 | // FIXME: move me to a better place |
| 1276 | Gen.FinishCache(Progress); |
| 1277 | } |
| 1278 | if (Debug == true) |
| 1279 | std::clog << "Caches are ready for shipping" << std::endl; |
| 1280 | |
| 1281 | if (_error->PendingError() == true) |
| 1282 | return false; |
| 1283 | if (OutMap != 0) |
| 1284 | { |
| 1285 | if (CacheF != 0) |
| 1286 | { |
| 1287 | delete Map.UnGuard(); |
| 1288 | *OutMap = new MMap(*CacheF,0); |
| 1289 | } |
| 1290 | else |
| 1291 | { |
| 1292 | *OutMap = Map.UnGuard(); |
| 1293 | } |
| 1294 | } |
| 1295 | |
| 1296 | return true; |
| 1297 | } |
| 1298 | /*}}}*/ |
| 1299 | // CacheGenerator::MakeOnlyStatusCache - Build only a status files cache/*{{{*/ |
| 1300 | // --------------------------------------------------------------------- |
| 1301 | /* */ |
| 1302 | __deprecated bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap) |
| 1303 | { return pkgCacheGenerator::MakeOnlyStatusCache(&Progress, OutMap); } |
| 1304 | bool pkgCacheGenerator::MakeOnlyStatusCache(OpProgress *Progress,DynamicMMap **OutMap) |
| 1305 | { |
| 1306 | vector<pkgIndexFile *> Files; |
| 1307 | unsigned long EndOfSource = Files.size(); |
| 1308 | if (_system->AddStatusFiles(Files) == false) |
| 1309 | return false; |
| 1310 | |
| 1311 | SPtr<DynamicMMap> Map = CreateDynamicMMap(NULL); |
| 1312 | unsigned long CurrentSize = 0; |
| 1313 | unsigned long TotalSize = 0; |
| 1314 | |
| 1315 | TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end()); |
| 1316 | |
| 1317 | // Build the status cache |
| 1318 | if (Progress != NULL) |
| 1319 | Progress->OverallProgress(0,1,1,_("Reading package lists")); |
| 1320 | pkgCacheGenerator Gen(Map.Get(),Progress); |
| 1321 | if (_error->PendingError() == true) |
| 1322 | return false; |
| 1323 | if (BuildCache(Gen,Progress,CurrentSize,TotalSize, |
| 1324 | Files.begin()+EndOfSource,Files.end()) == false) |
| 1325 | return false; |
| 1326 | |
| 1327 | // FIXME: move me to a better place |
| 1328 | Gen.FinishCache(Progress); |
| 1329 | |
| 1330 | if (_error->PendingError() == true) |
| 1331 | return false; |
| 1332 | *OutMap = Map.UnGuard(); |
| 1333 | |
| 1334 | return true; |
| 1335 | } |
| 1336 | /*}}}*/ |