X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/eb162ff79b93ea98380f4555e0fe3116993241fb..95f9393859c464e89467fba096074922708010d1:/apt-pkg/pkgcachegen.cc diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc index 68180c702..d5f1f9072 100644 --- a/apt-pkg/pkgcachegen.cc +++ b/apt-pkg/pkgcachegen.cc @@ -10,7 +10,7 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#define APT_COMPATIBILITY 986 +#include #include #include @@ -18,27 +18,34 @@ #include #include #include +#include #include #include #include - +#include #include - -#include +#include +#include #include - #include #include #include #include -#include + +#include /*}}}*/ -typedef vector::iterator FileIterator; +typedef std::vector::iterator FileIterator; +template std::vector pkgCacheGenerator::Dynamic::toReMap; + +static bool IsDuplicateDescription(pkgCache::DescIterator Desc, + MD5SumValue const &CurMd5, std::string const &CurLang); + +using std::string; // CacheGenerator::pkgCacheGenerator - Constructor /*{{{*/ // --------------------------------------------------------------------- -/* We set the diry flag and make sure that is written to the disk */ +/* We set the dirty flag and make sure that is written to the disk */ pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) : Map(*pMap), Cache(pMap,false), Progress(Prog), FoundFileDeps(0) @@ -60,8 +67,12 @@ pkgCacheGenerator::pkgCacheGenerator(DynamicMMap *pMap,OpProgress *Prog) : // Starting header *Cache.HeaderP = pkgCache::Header(); - Cache.HeaderP->VerSysName = Map.WriteString(_system->VS->Label); - Cache.HeaderP->Architecture = Map.WriteString(_config->Find("APT::Architecture")); + map_ptrloc const idxVerSysName = WriteStringInMap(_system->VS->Label); + Cache.HeaderP->VerSysName = idxVerSysName; + map_ptrloc const idxArchitecture = WriteStringInMap(_config->Find("APT::Architecture")); + Cache.HeaderP->Architecture = idxArchitecture; + if (unlikely(idxVerSysName == 0 || idxArchitecture == 0)) + return; Cache.ReMap(); } else @@ -92,9 +103,74 @@ pkgCacheGenerator::~pkgCacheGenerator() return; Cache.HeaderP->Dirty = false; + Cache.HeaderP->CacheFileSize = Map.Size(); Map.Sync(0,sizeof(pkgCache::Header)); } /*}}}*/ +void pkgCacheGenerator::ReMap(void const * const oldMap, void const * const newMap) {/*{{{*/ + if (oldMap == newMap) + return; + + if (_config->FindB("Debug::pkgCacheGen", false)) + std::clog << "Remaping from " << oldMap << " to " << newMap << std::endl; + + Cache.ReMap(false); + + CurrentFile += (pkgCache::PackageFile*) newMap - (pkgCache::PackageFile*) oldMap; + + for (size_t i = 0; i < _count(UniqHash); ++i) + if (UniqHash[i] != 0) + UniqHash[i] += (pkgCache::StringItem*) newMap - (pkgCache::StringItem*) oldMap; + + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); + for (std::vector::const_iterator i = Dynamic::toReMap.begin(); + i != Dynamic::toReMap.end(); ++i) + (*i)->ReMap(oldMap, newMap); +} /*}}}*/ +// CacheGenerator::WriteStringInMap /*{{{*/ +map_ptrloc pkgCacheGenerator::WriteStringInMap(const char *String, + const unsigned long &Len) { + void const * const oldMap = Map.Data(); + map_ptrloc const index = Map.WriteString(String, Len); + if (index != 0) + ReMap(oldMap, Map.Data()); + return index; +} + /*}}}*/ +// CacheGenerator::WriteStringInMap /*{{{*/ +map_ptrloc pkgCacheGenerator::WriteStringInMap(const char *String) { + void const * const oldMap = Map.Data(); + map_ptrloc const index = Map.WriteString(String); + if (index != 0) + ReMap(oldMap, Map.Data()); + return index; +} + /*}}}*/ +map_ptrloc pkgCacheGenerator::AllocateInMap(const unsigned long &size) {/*{{{*/ + void const * const oldMap = Map.Data(); + map_ptrloc const index = Map.Allocate(size); + if (index != 0) + ReMap(oldMap, Map.Data()); + return index; +} + /*}}}*/ // CacheGenerator::MergeList - Merge the package list /*{{{*/ // --------------------------------------------------------------------- /* This provides the generation of the entries in the cache. Each loop @@ -107,174 +183,350 @@ bool pkgCacheGenerator::MergeList(ListParser &List, unsigned int Counter = 0; while (List.Step() == true) { - // Get a pointer to the package structure - string PackageName = List.Package(); + string const PackageName = List.Package(); if (PackageName.empty() == true) return false; - - pkgCache::PkgIterator Pkg; - if (NewPackage(Pkg,PackageName) == false) - return _error->Error(_("Error occurred while processing %s (NewPackage)"),PackageName.c_str()); + Counter++; if (Counter % 100 == 0 && Progress != 0) Progress->Progress(List.Offset()); - /* Get a pointer to the version structure. We know the list is sorted - so we use that fact in the search. Insertion of new versions is - done with correct sorting */ - string Version = List.Version(); + string Arch = List.Architecture(); + string const Version = List.Version(); + if (Version.empty() == true && Arch.empty() == true) + { + // package descriptions + if (MergeListGroup(List, PackageName) == false) + return false; + continue; + } + + if (Arch.empty() == true) + { + // use the pseudo arch 'none' for arch-less packages + Arch = "none"; + /* We might built a SingleArchCache here, which we don't want to blow up + just for these :none packages to a proper MultiArchCache, so just ensure + that we have always a native package structure first for SingleArch */ + pkgCache::PkgIterator NP; + Dynamic DynPkg(NP); + if (NewPackage(NP, PackageName, _config->Find("APT::Architecture")) == false) + // TRANSLATOR: The first placeholder is a package name, + // the other two should be copied verbatim as they include debug info + return _error->Error(_("Error occurred while processing %s (%s%d)"), + PackageName.c_str(), "NewPackage", 0); + } + + // Get a pointer to the package structure + pkgCache::PkgIterator Pkg; + Dynamic DynPkg(Pkg); + if (NewPackage(Pkg, PackageName, Arch) == false) + // TRANSLATOR: The first placeholder is a package name, + // the other two should be copied verbatim as they include debug info + return _error->Error(_("Error occurred while processing %s (%s%d)"), + PackageName.c_str(), "NewPackage", 1); + + if (Version.empty() == true) { - // we first process the package, then the descriptions - // (this has the bonus that we get MMap error when we run out - // of MMap space) - if (List.UsePackage(Pkg,pkgCache::VerIterator(Cache)) == false) - return _error->Error(_("Error occurred while processing %s (UsePackage1)"), - PackageName.c_str()); - - // Find the right version to write the description - MD5SumValue CurMd5 = List.Description_md5(); - pkgCache::VerIterator Ver = Pkg.VersionList(); - map_ptrloc *LastVer = &Pkg->VersionList; - - for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) - { - pkgCache::DescIterator Desc = Ver.DescriptionList(); - map_ptrloc *LastDesc = &Ver->DescriptionList; - bool duplicate=false; - - // don't add a new description if we have one for the given - // md5 && language - for ( ; Desc.end() == false; Desc++) - if (MD5SumValue(Desc.md5()) == CurMd5 && - Desc.LanguageCode() == List.DescriptionLanguage()) - duplicate=true; - if(duplicate) - continue; - - for (Desc = Ver.DescriptionList(); - Desc.end() == false; - LastDesc = &Desc->NextDesc, Desc++) - { - if (MD5SumValue(Desc.md5()) == CurMd5) - { - // Add new description - *LastDesc = NewDescription(Desc, List.DescriptionLanguage(), CurMd5, *LastDesc); - Desc->ParentPkg = Pkg.Index(); - - if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) - return _error->Error(_("Error occurred while processing %s (NewFileDesc1)"),PackageName.c_str()); - break; - } - } - } + if (MergeListPackage(List, Pkg) == false) + return false; + } + else + { + if (MergeListVersion(List, Pkg, Version, OutVer) == false) + return false; + } - continue; + if (OutVer != 0) + { + FoundFileDeps |= List.HasFileDeps(); + return true; } + } - pkgCache::VerIterator Ver = Pkg.VersionList(); - map_ptrloc *LastVer = &Pkg->VersionList; + if (Cache.HeaderP->PackageCount >= (1ULL<ID)*8)-1) + return _error->Error(_("Wow, you exceeded the number of package " + "names this APT is capable of.")); + if (Cache.HeaderP->VersionCount >= (1ULL<<(sizeof(Cache.VerP->ID)*8))-1) + return _error->Error(_("Wow, you exceeded the number of versions " + "this APT is capable of.")); + if (Cache.HeaderP->DescriptionCount >= (1ULL<<(sizeof(Cache.DescP->ID)*8))-1) + return _error->Error(_("Wow, you exceeded the number of descriptions " + "this APT is capable of.")); + if (Cache.HeaderP->DependsCount >= (1ULL<<(sizeof(Cache.DepP->ID)*8))-1ULL) + return _error->Error(_("Wow, you exceeded the number of dependencies " + "this APT is capable of.")); + + FoundFileDeps |= List.HasFileDeps(); + return true; +} +// CacheGenerator::MergeListGroup /*{{{*/ +bool pkgCacheGenerator::MergeListGroup(ListParser &List, std::string const &GrpName) +{ + pkgCache::GrpIterator Grp = Cache.FindGrp(GrpName); + // a group has no data on it's own, only packages have it but these + // stanzas like this come from Translation- files to add descriptions, + // but without a version we don't need a description for it… + if (Grp.end() == true) + return true; + Dynamic DynGrp(Grp); + + pkgCache::PkgIterator Pkg; + Dynamic DynPkg(Pkg); + for (Pkg = Grp.PackageList(); Pkg.end() == false; Pkg = Grp.NextPkg(Pkg)) + if (MergeListPackage(List, Pkg) == false) + return false; + + return true; +} + /*}}}*/ +// CacheGenerator::MergeListPackage /*{{{*/ +bool pkgCacheGenerator::MergeListPackage(ListParser &List, pkgCache::PkgIterator &Pkg) +{ + // we first process the package, then the descriptions + // (for deb this package processing is in fact a no-op) + pkgCache::VerIterator Ver(Cache); + Dynamic DynVer(Ver); + if (List.UsePackage(Pkg, Ver) == false) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "UsePackage", 1); + + // Find the right version to write the description + MD5SumValue CurMd5 = List.Description_md5(); + std::string CurLang = List.DescriptionLanguage(); + + for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver) + { + pkgCache::DescIterator Desc = Ver.DescriptionList(); + + // a version can only have one md5 describing it + if (Desc.end() == true || MD5SumValue(Desc.md5()) != CurMd5) + continue; + + // don't add a new description if we have one for the given + // md5 && language + if (IsDuplicateDescription(Desc, CurMd5, CurLang) == true) + continue; + + Dynamic DynDesc(Desc); + // we add at the end, so that the start is constant as we need + // that to be able to efficiently share these lists + map_ptrloc *LastDesc = &Ver->DescriptionList; + for (;Desc.end() == false && Desc->NextDesc != 0; ++Desc); + if (Desc.end() == false) + LastDesc = &Desc->NextDesc; + + void const * const oldMap = Map.Data(); + map_ptrloc const descindex = NewDescription(Desc, CurLang, CurMd5, *LastDesc); + if (unlikely(descindex == 0 && _error->PendingError())) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "NewDescription", 1); + if (oldMap != Map.Data()) + LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; + *LastDesc = descindex; + Desc->ParentPkg = Pkg.Index(); + + if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "NewFileDesc", 1); + + // we can stop here as all "same" versions will share the description + break; + } + + return true; +} + /*}}}*/ +// CacheGenerator::MergeListVersion /*{{{*/ +bool pkgCacheGenerator::MergeListVersion(ListParser &List, pkgCache::PkgIterator &Pkg, + std::string const &Version, pkgCache::VerIterator* &OutVer) +{ + pkgCache::VerIterator Ver = Pkg.VersionList(); + Dynamic DynVer(Ver); + map_ptrloc *LastVer = &Pkg->VersionList; + void const * oldMap = Map.Data(); + + unsigned long const Hash = List.VersionHash(); + if (Ver.end() == false) + { + /* We know the list is sorted so we use that fact in the search. + Insertion of new versions is done with correct sorting */ int Res = 1; for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) { Res = Cache.VS->CmpVersion(Version,Ver.VerStr()); - if (Res >= 0) + // Version is higher as current version - insert here + if (Res > 0) break; + // Versionstrings are equal - is hash also equal? + if (Res == 0 && Ver->Hash == Hash) + break; + // proceed with the next till we have either the right + // or we found another version (which will be lower) } - - /* We already have a version for this item, record that we - saw it */ - unsigned long Hash = List.VersionHash(); - if (Res == 0 && Ver->Hash == Hash) + + /* We already have a version for this item, record that we saw it */ + if (Res == 0 && Ver.end() == false && Ver->Hash == Hash) { if (List.UsePackage(Pkg,Ver) == false) - return _error->Error(_("Error occurred while processing %s (UsePackage2)"), - PackageName.c_str()); + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "UsePackage", 2); if (NewFileVer(Ver,List) == false) - return _error->Error(_("Error occurred while processing %s (NewFileVer1)"), - PackageName.c_str()); - + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "NewFileVer", 1); + // Read only a single record and return if (OutVer != 0) { *OutVer = Ver; - FoundFileDeps |= List.HasFileDeps(); return true; } - - continue; - } - // Skip to the end of the same version set. - if (Res == 0) + return true; + } + } + + // Add a new version + map_ptrloc const verindex = NewVersion(Ver,Version,*LastVer); + if (verindex == 0 && _error->PendingError()) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "NewVersion", 1); + + if (oldMap != Map.Data()) + LastVer += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; + *LastVer = verindex; + Ver->ParentPkg = Pkg.Index(); + Ver->Hash = Hash; + + if (unlikely(List.NewVersion(Ver) == false)) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "NewVersion", 2); + + if (unlikely(List.UsePackage(Pkg,Ver) == false)) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "UsePackage", 3); + + if (unlikely(NewFileVer(Ver,List) == false)) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "NewFileVer", 2); + + pkgCache::GrpIterator Grp = Pkg.Group(); + Dynamic DynGrp(Grp); + + /* If it is the first version of this package we need to add implicit + Multi-Arch dependencies to all other package versions in the group now - + otherwise we just add them for this new version */ + if (Pkg.VersionList()->NextVer == 0) + { + pkgCache::PkgIterator P = Grp.PackageList(); + Dynamic DynP(P); + for (; P.end() != true; P = Grp.NextPkg(P)) { - for (; Ver.end() == false; LastVer = &Ver->NextVer, Ver++) + if (P->ID == Pkg->ID) + continue; + pkgCache::VerIterator V = P.VersionList(); + Dynamic DynV(V); + for (; V.end() != true; ++V) + if (unlikely(AddImplicitDepends(V, Pkg) == false)) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "AddImplicitDepends", 1); + } + /* :none packages are packages without an architecture. They are forbidden by + debian-policy, so usually they will only be in (old) dpkg status files - + and dpkg will complain about them - and are pretty rare. We therefore do + usually not create conflicts while the parent is created, but only if a :none + package (= the target) appears. This creates incorrect dependencies on :none + for architecture-specific dependencies on the package we copy from, but we + will ignore this bug as architecture-specific dependencies are only allowed + in jessie and until then the :none packages should be extinct (hopefully). + In other words: This should work long enough to allow graceful removal of + these packages, it is not supposed to allow users to keep using them … */ + if (strcmp(Pkg.Arch(), "none") == 0) + { + pkgCache::PkgIterator M = Grp.FindPreferredPkg(); + if (M.end() == false && Pkg != M) { - Res = Cache.VS->CmpVersion(Version,Ver.VerStr()); - if (Res != 0) - break; + pkgCache::DepIterator D = M.RevDependsList(); + Dynamic DynD(D); + for (; D.end() == false; ++D) + { + if ((D->Type != pkgCache::Dep::Conflicts && + D->Type != pkgCache::Dep::DpkgBreaks && + D->Type != pkgCache::Dep::Replaces) || + D.ParentPkg().Group() == Grp) + continue; + + map_ptrloc *OldDepLast = NULL; + pkgCache::VerIterator ConVersion = D.ParentVer(); + Dynamic DynV(ConVersion); + // duplicate the Conflicts/Breaks/Replaces for :none arch + if (D->Version == 0) + NewDepends(Pkg, ConVersion, "", 0, D->Type, OldDepLast); + else + NewDepends(Pkg, ConVersion, D.TargetVer(), + D->CompareOp, D->Type, OldDepLast); + } } } + } + if (unlikely(AddImplicitDepends(Grp, Pkg, Ver) == false)) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "AddImplicitDepends", 2); - // Add a new version - *LastVer = NewVersion(Ver,Version,*LastVer); - Ver->ParentPkg = Pkg.Index(); - Ver->Hash = Hash; - - if ((*LastVer == 0 && _error->PendingError()) || List.NewVersion(Ver) == false) - return _error->Error(_("Error occurred while processing %s (NewVersion1)"), - PackageName.c_str()); + // Read only a single record and return + if (OutVer != 0) + { + *OutVer = Ver; + return true; + } - if (List.UsePackage(Pkg,Ver) == false) - return _error->Error(_("Error occurred while processing %s (UsePackage3)"), - PackageName.c_str()); - - if (NewFileVer(Ver,List) == false) - return _error->Error(_("Error occurred while processing %s (NewVersion2)"), - PackageName.c_str()); + /* Record the Description (it is not translated) */ + MD5SumValue CurMd5 = List.Description_md5(); + if (CurMd5.Value().empty() == true) + return true; + std::string CurLang = List.DescriptionLanguage(); - // Read only a single record and return - if (OutVer != 0) + /* Before we add a new description we first search in the group for + a version with a description of the same MD5 - if so we reuse this + description group instead of creating our own for this version */ + for (pkgCache::PkgIterator P = Grp.PackageList(); + P.end() == false; P = Grp.NextPkg(P)) + { + for (pkgCache::VerIterator V = P.VersionList(); + V.end() == false; ++V) { - *OutVer = Ver; - FoundFileDeps |= List.HasFileDeps(); + if (IsDuplicateDescription(V.DescriptionList(), CurMd5, "") == false) + continue; + Ver->DescriptionList = V->DescriptionList; return true; - } - - /* Record the Description data. Description data always exist in - Packages and Translation-* files. */ - pkgCache::DescIterator Desc = Ver.DescriptionList(); - map_ptrloc *LastDesc = &Ver->DescriptionList; - - // Skip to the end of description set - for (; Desc.end() == false; LastDesc = &Desc->NextDesc, Desc++); + } + } - // Add new description - *LastDesc = NewDescription(Desc, List.DescriptionLanguage(), List.Description_md5(), *LastDesc); - Desc->ParentPkg = Pkg.Index(); + // We haven't found reusable descriptions, so add the first description + pkgCache::DescIterator Desc = Ver.DescriptionList(); + Dynamic DynDesc(Desc); + map_ptrloc *LastDesc = &Ver->DescriptionList; - if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) - return _error->Error(_("Error occurred while processing %s (NewFileDesc2)"),PackageName.c_str()); - } + oldMap = Map.Data(); + map_ptrloc const descindex = NewDescription(Desc, CurLang, CurMd5, *LastDesc); + if (unlikely(descindex == 0 && _error->PendingError())) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "NewDescription", 2); + if (oldMap != Map.Data()) + LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; + *LastDesc = descindex; + Desc->ParentPkg = Pkg.Index(); - FoundFileDeps |= List.HasFileDeps(); + if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false) + return _error->Error(_("Error occurred while processing %s (%s%d)"), + Pkg.Name(), "NewFileDesc", 2); - if (Cache.HeaderP->PackageCount >= (1ULL<ID)*8)-1) - return _error->Error(_("Wow, you exceeded the number of package " - "names this APT is capable of.")); - if (Cache.HeaderP->VersionCount >= (1ULL<<(sizeof(Cache.VerP->ID)*8))-1) - return _error->Error(_("Wow, you exceeded the number of versions " - "this APT is capable of.")); - if (Cache.HeaderP->DescriptionCount >= (1ULL<<(sizeof(Cache.DescP->ID)*8))-1) - return _error->Error(_("Wow, you exceeded the number of descriptions " - "this APT is capable of.")); - if (Cache.HeaderP->DependsCount >= (1ULL<<(sizeof(Cache.DepP->ID)*8))-1ULL) - return _error->Error(_("Wow, you exceeded the number of dependencies " - "this APT is capable of.")); return true; } /*}}}*/ + /*}}}*/ // CacheGenerator::MergeFileProvides - Merge file provides /*{{{*/ // --------------------------------------------------------------------- /* If we found any file depends while parsing the main list we need to @@ -297,21 +549,24 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List) continue; pkgCache::PkgIterator Pkg = Cache.FindPkg(PackageName); + Dynamic DynPkg(Pkg); if (Pkg.end() == true) - return _error->Error(_("Error occurred while processing %s (FindPkg)"), - PackageName.c_str()); + return _error->Error(_("Error occurred while processing %s (%s%d)"), + PackageName.c_str(), "FindPkg", 1); Counter++; if (Counter % 100 == 0 && Progress != 0) Progress->Progress(List.Offset()); unsigned long Hash = List.VersionHash(); pkgCache::VerIterator Ver = Pkg.VersionList(); - for (; Ver.end() == false; Ver++) + Dynamic DynVer(Ver); + for (; Ver.end() == false; ++Ver) { if (Ver->Hash == Hash && Version.c_str() == Ver.VerStr()) { if (List.CollectFileProvides(Cache,Ver) == false) - return _error->Error(_("Error occurred while processing %s (CollectFileProvides)"),PackageName.c_str()); + return _error->Error(_("Error occurred while processing %s (%s%d)"), + PackageName.c_str(), "CollectFileProvides", 1); break; } } @@ -323,35 +578,154 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List) return true; } /*}}}*/ -// CacheGenerator::NewPackage - Add a new package /*{{{*/ +// CacheGenerator::NewGroup - Add a new group /*{{{*/ // --------------------------------------------------------------------- -/* This creates a new package structure and adds it to the hash table */ -bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name) +/* This creates a new group structure and adds it to the hash table */ +bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, const string &Name) { - Pkg = Cache.FindPkg(Name); - if (Pkg.end() == false) + Grp = Cache.FindGrp(Name); + if (Grp.end() == false) return true; // Get a structure - unsigned long Package = Map.Allocate(sizeof(pkgCache::Package)); - if (Package == 0) + map_ptrloc const Group = AllocateInMap(sizeof(pkgCache::Group)); + if (unlikely(Group == 0)) return false; - - Pkg = pkgCache::PkgIterator(Cache,Cache.PkgP + Package); - + + Grp = pkgCache::GrpIterator(Cache, Cache.GrpP + Group); + map_ptrloc const idxName = WriteStringInMap(Name); + if (unlikely(idxName == 0)) + return false; + Grp->Name = idxName; + // Insert it into the hash table - unsigned long Hash = Cache.Hash(Name); - Pkg->NextPackage = Cache.HeaderP->HashTable[Hash]; - Cache.HeaderP->HashTable[Hash] = Package; - - // Set the name and the ID - Pkg->Name = Map.WriteString(Name); - if (Pkg->Name == 0) + unsigned long const Hash = Cache.Hash(Name); + Grp->Next = Cache.HeaderP->GrpHashTable[Hash]; + Cache.HeaderP->GrpHashTable[Hash] = Group; + + Grp->ID = Cache.HeaderP->GroupCount++; + return true; +} + /*}}}*/ +// CacheGenerator::NewPackage - Add a new package /*{{{*/ +// --------------------------------------------------------------------- +/* This creates a new package structure and adds it to the hash table */ +bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name, + const string &Arch) { + pkgCache::GrpIterator Grp; + Dynamic DynGrp(Grp); + if (unlikely(NewGroup(Grp, Name) == false)) + return false; + + Pkg = Grp.FindPkg(Arch); + if (Pkg.end() == false) + return true; + + // Get a structure + map_ptrloc const Package = AllocateInMap(sizeof(pkgCache::Package)); + if (unlikely(Package == 0)) return false; + Pkg = pkgCache::PkgIterator(Cache,Cache.PkgP + Package); + + // Insert the package into our package list + if (Grp->FirstPackage == 0) // the group is new + { + // Insert it into the hash table + unsigned long const Hash = Cache.Hash(Name); + Pkg->NextPackage = Cache.HeaderP->PkgHashTable[Hash]; + Cache.HeaderP->PkgHashTable[Hash] = Package; + Grp->FirstPackage = Package; + } + else // Group the Packages together + { + // this package is the new last package + pkgCache::PkgIterator LastPkg(Cache, Cache.PkgP + Grp->LastPackage); + Pkg->NextPackage = LastPkg->NextPackage; + LastPkg->NextPackage = Package; + } + Grp->LastPackage = Package; + + // Set the name, arch and the ID + Pkg->Name = Grp->Name; + Pkg->Group = Grp.Index(); + // all is mapped to the native architecture + map_ptrloc const idxArch = (Arch == "all") ? Cache.HeaderP->Architecture : WriteUniqString(Arch.c_str()); + if (unlikely(idxArch == 0)) + return false; + Pkg->Arch = idxArch; Pkg->ID = Cache.HeaderP->PackageCount++; - + + return true; +} + /*}}}*/ +// CacheGenerator::AddImplicitDepends /*{{{*/ +bool pkgCacheGenerator::AddImplicitDepends(pkgCache::GrpIterator &G, + pkgCache::PkgIterator &P, + pkgCache::VerIterator &V) +{ + // copy P.Arch() into a string here as a cache remap + // in NewDepends() later may alter the pointer location + string Arch = P.Arch() == NULL ? "" : P.Arch(); + map_ptrloc *OldDepLast = NULL; + /* MultiArch handling introduces a lot of implicit Dependencies: + - MultiArch: same → Co-Installable if they have the same version + - All others conflict with all other group members */ + bool const coInstall = ((V->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same); + pkgCache::PkgIterator D = G.PackageList(); + Dynamic DynD(D); + for (; D.end() != true; D = G.NextPkg(D)) + { + if (Arch == D.Arch() || D->VersionList == 0) + continue; + /* We allow only one installed arch at the time + per group, therefore each group member conflicts + with all other group members */ + if (coInstall == true) + { + // Replaces: ${self}:other ( << ${binary:Version}) + NewDepends(D, V, V.VerStr(), + pkgCache::Dep::Less, pkgCache::Dep::Replaces, + OldDepLast); + // Breaks: ${self}:other (!= ${binary:Version}) + NewDepends(D, V, V.VerStr(), + pkgCache::Dep::NotEquals, pkgCache::Dep::DpkgBreaks, + OldDepLast); + } else { + // Conflicts: ${self}:other + NewDepends(D, V, "", + pkgCache::Dep::NoOp, pkgCache::Dep::Conflicts, + OldDepLast); + } + } + return true; +} +bool pkgCacheGenerator::AddImplicitDepends(pkgCache::VerIterator &V, + pkgCache::PkgIterator &D) +{ + /* MultiArch handling introduces a lot of implicit Dependencies: + - MultiArch: same → Co-Installable if they have the same version + - All others conflict with all other group members */ + map_ptrloc *OldDepLast = NULL; + bool const coInstall = ((V->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same); + if (coInstall == true) + { + // Replaces: ${self}:other ( << ${binary:Version}) + NewDepends(D, V, V.VerStr(), + pkgCache::Dep::Less, pkgCache::Dep::Replaces, + OldDepLast); + // Breaks: ${self}:other (!= ${binary:Version}) + NewDepends(D, V, V.VerStr(), + pkgCache::Dep::NotEquals, pkgCache::Dep::DpkgBreaks, + OldDepLast); + } else { + // Conflicts: ${self}:other + NewDepends(D, V, "", + pkgCache::Dep::NoOp, pkgCache::Dep::Conflicts, + OldDepLast); + } return true; } + /*}}}*/ // CacheGenerator::NewFileVer - Create a new File<->Version association /*{{{*/ // --------------------------------------------------------------------- @@ -363,7 +737,7 @@ bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver, return true; // Get a structure - unsigned long VerFile = Map.Allocate(sizeof(pkgCache::VerFile)); + map_ptrloc const VerFile = AllocateInMap(sizeof(pkgCache::VerFile)); if (VerFile == 0) return 0; @@ -372,7 +746,7 @@ bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver, // Link it to the end of the list map_ptrloc *Last = &Ver->FileList; - for (pkgCache::VerFileIterator V = Ver.FileList(); V.end() == false; V++) + for (pkgCache::VerFileIterator V = Ver.FileList(); V.end() == false; ++V) Last = &V->NextFile; VF->NextFile = *Last; *Last = VF.Index(); @@ -394,17 +768,19 @@ unsigned long pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver, unsigned long Next) { // Get a structure - unsigned long Version = Map.Allocate(sizeof(pkgCache::Version)); + map_ptrloc const Version = AllocateInMap(sizeof(pkgCache::Version)); if (Version == 0) return 0; // Fill it in Ver = pkgCache::VerIterator(Cache,Cache.VerP + Version); + Dynamic DynV(Ver); Ver->NextVer = Next; Ver->ID = Cache.HeaderP->VersionCount++; - Ver->VerStr = Map.WriteString(VerStr); - if (Ver->VerStr == 0) + map_ptrloc const idxVerStr = WriteStringInMap(VerStr); + if (unlikely(idxVerStr == 0)) return 0; + Ver->VerStr = idxVerStr; return Version; } @@ -419,7 +795,7 @@ bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc, return true; // Get a structure - unsigned long DescFile = Map.Allocate(sizeof(pkgCache::DescFile)); + map_ptrloc const DescFile = AllocateInMap(sizeof(pkgCache::DescFile)); if (DescFile == 0) return false; @@ -428,7 +804,7 @@ bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc, // Link it to the end of the list map_ptrloc *Last = &Desc->FileList; - for (pkgCache::DescFileIterator D = Desc.FileList(); D.end() == false; D++) + for (pkgCache::DescFileIterator D = Desc.FileList(); D.end() == false; ++D) Last = &D->NextFile; DF->NextFile = *Last; @@ -452,7 +828,7 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc, map_ptrloc Next) { // Get a structure - map_ptrloc Description = Map.Allocate(sizeof(pkgCache::Description)); + map_ptrloc const Description = AllocateInMap(sizeof(pkgCache::Description)); if (Description == 0) return 0; @@ -460,73 +836,69 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc, Desc = pkgCache::DescIterator(Cache,Cache.DescP + Description); Desc->NextDesc = Next; Desc->ID = Cache.HeaderP->DescriptionCount++; - Desc->language_code = Map.WriteString(Lang); - Desc->md5sum = Map.WriteString(md5sum.Value()); - if (Desc->language_code == 0 || Desc->md5sum == 0) + map_ptrloc const idxlanguage_code = WriteStringInMap(Lang); + map_ptrloc const idxmd5sum = WriteStringInMap(md5sum.Value()); + if (unlikely(idxlanguage_code == 0 || idxmd5sum == 0)) return 0; + Desc->language_code = idxlanguage_code; + Desc->md5sum = idxmd5sum; return Description; } /*}}}*/ -// ListParser::NewDepends - Create a dependency element /*{{{*/ +// CacheGenerator::NewDepends - Create a dependency element /*{{{*/ // --------------------------------------------------------------------- /* This creates a dependency element in the tree. It is linked to the version and to the package that it is pointing to. */ -bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver, - const string &PackageName, - const string &Version, - unsigned int Op, - unsigned int Type) +bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg, + pkgCache::VerIterator &Ver, + string const &Version, + unsigned int const &Op, + unsigned int const &Type, + map_ptrloc* &OldDepLast) { - pkgCache &Cache = Owner->Cache; - + void const * const oldMap = Map.Data(); // Get a structure - unsigned long Dependency = Owner->Map.Allocate(sizeof(pkgCache::Dependency)); - if (Dependency == 0) + map_ptrloc const Dependency = AllocateInMap(sizeof(pkgCache::Dependency)); + if (unlikely(Dependency == 0)) return false; // Fill it in pkgCache::DepIterator Dep(Cache,Cache.DepP + Dependency); + Dynamic DynDep(Dep); Dep->ParentVer = Ver.Index(); Dep->Type = Type; Dep->CompareOp = Op; Dep->ID = Cache.HeaderP->DependsCount++; - - // Locate the target package - pkgCache::PkgIterator Pkg; - if (Owner->NewPackage(Pkg,PackageName) == false) - return false; - + // Probe the reverse dependency list for a version string that matches if (Version.empty() == false) { /* for (pkgCache::DepIterator I = Pkg.RevDependsList(); I.end() == false; I++) if (I->Version != 0 && I.TargetVer() == Version) Dep->Version = I->Version;*/ - if (Dep->Version == 0) - if ((Dep->Version = WriteString(Version)) == 0) + if (Dep->Version == 0) { + map_ptrloc const index = WriteStringInMap(Version); + if (unlikely(index == 0)) return false; + Dep->Version = index; + } } - + // Link it to the package Dep->Package = Pkg.Index(); Dep->NextRevDepends = Pkg->RevDepends; Pkg->RevDepends = Dep.Index(); - - /* Link it to the version (at the end of the list) - Caching the old end point speeds up generation substantially */ - if (OldDepVer != Ver) + + // Do we know where to link the Dependency to? + if (OldDepLast == NULL) { OldDepLast = &Ver->DependsList; - for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++) + for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; ++D) OldDepLast = &D->NextDepends; - OldDepVer = Ver; - } + } else if (oldMap != Map.Data()) + OldDepLast += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; - // Is it a file dependency? - if (PackageName[0] == '/') - FoundFileDeps = true; - Dep->NextDepends = *OldDepLast; *OldDepLast = Dep.Index(); OldDepLast = &Dep->NextDepends; @@ -534,36 +906,80 @@ bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator Ver, return true; } /*}}}*/ +// ListParser::NewDepends - Create the environment for a new dependency /*{{{*/ +// --------------------------------------------------------------------- +/* This creates a Group and the Package to link this dependency to if + needed and handles also the caching of the old endpoint */ +bool pkgCacheGenerator::ListParser::NewDepends(pkgCache::VerIterator &Ver, + const string &PackageName, + const string &Arch, + const string &Version, + unsigned int Op, + unsigned int Type) +{ + pkgCache::GrpIterator Grp; + Dynamic DynGrp(Grp); + if (unlikely(Owner->NewGroup(Grp, PackageName) == false)) + return false; + + // Locate the target package + pkgCache::PkgIterator Pkg = Grp.FindPkg(Arch); + // we don't create 'none' packages and their dependencies if we can avoid it … + if (Pkg.end() == true && Arch == "none" && strcmp(Ver.ParentPkg().Arch(), "none") != 0) + return true; + Dynamic DynPkg(Pkg); + if (Pkg.end() == true) { + if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false)) + return false; + } + + // Is it a file dependency? + if (unlikely(PackageName[0] == '/')) + FoundFileDeps = true; + + /* Caching the old end point speeds up generation substantially */ + if (OldDepVer != Ver) { + OldDepLast = NULL; + OldDepVer = Ver; + } + + return Owner->NewDepends(Pkg, Ver, Version, Op, Type, OldDepLast); +} + /*}}}*/ // ListParser::NewProvides - Create a Provides element /*{{{*/ // --------------------------------------------------------------------- /* */ -bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver, - const string &PackageName, +bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator &Ver, + const string &PkgName, + const string &PkgArch, const string &Version) { pkgCache &Cache = Owner->Cache; // We do not add self referencing provides - if (Ver.ParentPkg().Name() == PackageName) + if (Ver.ParentPkg().Name() == PkgName && (PkgArch == Ver.ParentPkg().Arch() || + (PkgArch == "all" && strcmp((Cache.StrP + Cache.HeaderP->Architecture), Ver.ParentPkg().Arch()) == 0))) return true; // Get a structure - unsigned long Provides = Owner->Map.Allocate(sizeof(pkgCache::Provides)); - if (Provides == 0) + map_ptrloc const Provides = Owner->AllocateInMap(sizeof(pkgCache::Provides)); + if (unlikely(Provides == 0)) return false; Cache.HeaderP->ProvidesCount++; // Fill it in pkgCache::PrvIterator Prv(Cache,Cache.ProvideP + Provides,Cache.PkgP); + Dynamic DynPrv(Prv); Prv->Version = Ver.Index(); Prv->NextPkgProv = Ver->ProvidesList; Ver->ProvidesList = Prv.Index(); - if (Version.empty() == false && (Prv->ProvideVersion = WriteString(Version)) == 0) + if (Version.empty() == false && unlikely((Prv->ProvideVersion = WriteString(Version)) == 0)) return false; // Locate the target package pkgCache::PkgIterator Pkg; - if (Owner->NewPackage(Pkg,PackageName) == false) + Dynamic DynPkg(Pkg); + if (unlikely(Owner->NewPackage(Pkg,PkgName, PkgArch) == false)) return false; // Link it to the package @@ -583,24 +999,29 @@ bool pkgCacheGenerator::SelectFile(const string &File,const string &Site, unsigned long Flags) { // Get some space for the structure - CurrentFile = Cache.PkgFileP + Map.Allocate(sizeof(*CurrentFile)); - if (CurrentFile == Cache.PkgFileP) + map_ptrloc const idxFile = AllocateInMap(sizeof(*CurrentFile)); + if (unlikely(idxFile == 0)) return false; - + CurrentFile = Cache.PkgFileP + idxFile; + // Fill it in - CurrentFile->FileName = Map.WriteString(File); - CurrentFile->Site = WriteUniqString(Site); + map_ptrloc const idxFileName = WriteStringInMap(File); + map_ptrloc const idxSite = WriteUniqString(Site); + if (unlikely(idxFileName == 0 || idxSite == 0)) + return false; + CurrentFile->FileName = idxFileName; + CurrentFile->Site = idxSite; CurrentFile->NextFile = Cache.HeaderP->FileList; CurrentFile->Flags = Flags; CurrentFile->ID = Cache.HeaderP->PackageFileCount; - CurrentFile->IndexType = WriteUniqString(Index.GetType()->Label); + map_ptrloc const idxIndexType = WriteUniqString(Index.GetType()->Label); + if (unlikely(idxIndexType == 0)) + return false; + CurrentFile->IndexType = idxIndexType; PkgFileName = File; Cache.HeaderP->FileList = CurrentFile - Cache.PkgFileP; Cache.HeaderP->PackageFileCount++; - if (CurrentFile->FileName == 0) - return false; - if (Progress != 0) Progress->SubProgress(Index.Size()); return true; @@ -640,18 +1061,25 @@ unsigned long pkgCacheGenerator::WriteUniqString(const char *S, } // Get a structure - unsigned long Item = Map.Allocate(sizeof(pkgCache::StringItem)); + void const * const oldMap = Map.Data(); + map_ptrloc const Item = AllocateInMap(sizeof(pkgCache::StringItem)); if (Item == 0) return 0; + map_ptrloc const idxString = WriteStringInMap(S,Size); + if (unlikely(idxString == 0)) + return 0; + if (oldMap != Map.Data()) { + Last += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap; + I += (pkgCache::StringItem*) Map.Data() - (pkgCache::StringItem*) oldMap; + } + *Last = Item; + // Fill in the structure pkgCache::StringItem *ItemP = Cache.StringItemP + Item; ItemP->NextItem = I - Cache.StringItemP; - *Last = Item; - ItemP->String = Map.WriteString(S,Size); - if (ItemP->String == 0) - return 0; - + ItemP->String = idxString; + Bucket = ItemP; return ItemP->String; } @@ -661,19 +1089,36 @@ unsigned long pkgCacheGenerator::WriteUniqString(const char *S, /* This just verifies that each file in the list of index files exists, has matching attributes with the cache and the cache does not have any extra files. */ -static bool CheckValidity(const string &CacheFile, FileIterator Start, - FileIterator End,MMap **OutMap = 0) +static bool CheckValidity(const string &CacheFile, + pkgSourceList &List, + FileIterator Start, + FileIterator End, + MMap **OutMap = 0) { + bool const Debug = _config->FindB("Debug::pkgCacheGen", false); // No file, certainly invalid if (CacheFile.empty() == true || FileExists(CacheFile) == false) + { + if (Debug == true) + std::clog << "CacheFile doesn't exist" << std::endl; return false; - + } + + if (List.GetLastModifiedTime() > GetModificationTime(CacheFile)) + { + if (Debug == true) + std::clog << "sources.list is newer than the cache" << std::endl; + return false; + } + // Map it FileFd CacheF(CacheFile,FileFd::ReadOnly); SPtr Map = new MMap(CacheF,0); pkgCache Cache(Map); if (_error->PendingError() == true || Map->Size() == 0) { + if (Debug == true) + std::clog << "Errors are pending or Map is empty()" << std::endl; _error->Discard(); return false; } @@ -682,10 +1127,16 @@ static bool CheckValidity(const string &CacheFile, FileIterator Start, verify the IMS data and check that it is on the disk too.. */ SPtrArray Visited = new bool[Cache.HeaderP->PackageFileCount]; memset(Visited,0,sizeof(*Visited)*Cache.HeaderP->PackageFileCount); - for (; Start != End; Start++) - { + for (; Start != End; ++Start) + { + if (Debug == true) + std::clog << "Checking PkgFile " << (*Start)->Describe() << ": "; if ((*Start)->HasPackages() == false) + { + if (Debug == true) + std::clog << "Has NO packages" << std::endl; continue; + } if ((*Start)->Exists() == false) { @@ -693,23 +1144,40 @@ static bool CheckValidity(const string &CacheFile, FileIterator Start, _error->WarningE("stat",_("Couldn't stat source package list %s"), (*Start)->Describe().c_str()); #endif + if (Debug == true) + std::clog << "file doesn't exist" << std::endl; continue; } // FindInCache is also expected to do an IMS check. pkgCache::PkgFileIterator File = (*Start)->FindInCache(Cache); if (File.end() == true) + { + if (Debug == true) + std::clog << "FindInCache returned end-Pointer" << std::endl; return false; + } Visited[File->ID] = true; + if (Debug == true) + std::clog << "with ID " << File->ID << " is valid" << std::endl; } for (unsigned I = 0; I != Cache.HeaderP->PackageFileCount; I++) if (Visited[I] == false) + { + if (Debug == true) + std::clog << "File with ID" << I << " wasn't visited" << std::endl; return false; + } if (_error->PendingError() == true) { + if (Debug == true) + { + std::clog << "Validity failed because of pending errors:" << std::endl; + _error->DumpErrors(); + } _error->Discard(); return false; } @@ -726,7 +1194,7 @@ static bool CheckValidity(const string &CacheFile, FileIterator Start, static unsigned long ComputeSize(FileIterator Start,FileIterator End) { unsigned long TotalSize = 0; - for (; Start != End; Start++) + for (; Start != End; ++Start) { if ((*Start)->HasPackages() == false) continue; @@ -739,12 +1207,12 @@ static unsigned long ComputeSize(FileIterator Start,FileIterator End) // --------------------------------------------------------------------- /* */ static bool BuildCache(pkgCacheGenerator &Gen, - OpProgress &Progress, + OpProgress *Progress, unsigned long &CurrentSize,unsigned long TotalSize, FileIterator Start, FileIterator End) { FileIterator I; - for (I = Start; I != End; I++) + for (I = Start; I != End; ++I) { if ((*I)->HasPackages() == false) continue; @@ -760,7 +1228,8 @@ static bool BuildCache(pkgCacheGenerator &Gen, } unsigned long Size = (*I)->Size(); - Progress.OverallProgress(CurrentSize,TotalSize,Size,_("Reading package lists")); + if (Progress != NULL) + Progress->OverallProgress(CurrentSize,TotalSize,Size,_("Reading package lists")); CurrentSize += Size; if ((*I)->Merge(Gen,Progress) == false) @@ -769,13 +1238,15 @@ static bool BuildCache(pkgCacheGenerator &Gen, if (Gen.HasFileDeps() == true) { - Progress.Done(); + if (Progress != NULL) + Progress->Done(); TotalSize = ComputeSize(Start, End); CurrentSize = 0; - for (I = Start; I != End; I++) + for (I = Start; I != End; ++I) { unsigned long Size = (*I)->Size(); - Progress.OverallProgress(CurrentSize,TotalSize,Size,_("Collecting File Provides")); + if (Progress != NULL) + Progress->OverallProgress(CurrentSize,TotalSize,Size,_("Collecting File Provides")); CurrentSize += Size; if ((*I)->MergeFileProvides(Gen,Progress) == false) return false; @@ -785,7 +1256,21 @@ static bool BuildCache(pkgCacheGenerator &Gen, return true; } /*}}}*/ -// MakeStatusCache - Construct the status cache /*{{{*/ +// CacheGenerator::CreateDynamicMMap - load an mmap with configuration options /*{{{*/ +DynamicMMap* pkgCacheGenerator::CreateDynamicMMap(FileFd *CacheF, unsigned long Flags) { + unsigned long const MapStart = _config->FindI("APT::Cache-Start", 24*1024*1024); + unsigned long const MapGrow = _config->FindI("APT::Cache-Grow", 1*1024*1024); + unsigned long const MapLimit = _config->FindI("APT::Cache-Limit", 0); + Flags |= MMap::Moveable; + if (_config->FindB("APT::Cache-Fallback", false) == true) + Flags |= MMap::Fallback; + if (CacheF != NULL) + return new DynamicMMap(*CacheF, Flags, MapStart, MapGrow, MapLimit); + else + return new DynamicMMap(Flags, MapStart, MapGrow, MapLimit); +} + /*}}}*/ +// CacheGenerator::MakeStatusCache - Construct the status cache /*{{{*/ // --------------------------------------------------------------------- /* This makes sure that the status cache (the cache that has all index files from the sources list and all local ones) is ready @@ -793,31 +1278,47 @@ static bool BuildCache(pkgCacheGenerator &Gen, the cache will be stored there. This is pretty much mandetory if you are using AllowMem. AllowMem lets the function be run as non-root where it builds the cache 'fast' into a memory buffer. */ -bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, +__deprecated bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, + MMap **OutMap, bool AllowMem) + { return pkgCacheGenerator::MakeStatusCache(List, &Progress, OutMap, AllowMem); } +bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress, MMap **OutMap,bool AllowMem) { - unsigned long MapSize = _config->FindI("APT::Cache-Limit",24*1024*1024); - - vector Files; - for (vector::const_iterator i = List.begin(); + bool const Debug = _config->FindB("Debug::pkgCacheGen", false); + + std::vector Files; + for (std::vector::const_iterator i = List.begin(); i != List.end(); - i++) + ++i) { - vector *Indexes = (*i)->GetIndexFiles(); - for (vector::const_iterator j = Indexes->begin(); + std::vector *Indexes = (*i)->GetIndexFiles(); + for (std::vector::const_iterator j = Indexes->begin(); j != Indexes->end(); - j++) + ++j) Files.push_back (*j); } - unsigned long EndOfSource = Files.size(); + unsigned long const EndOfSource = Files.size(); if (_system->AddStatusFiles(Files) == false) return false; // Decide if we can write to the files.. - string CacheFile = _config->FindFile("Dir::Cache::pkgcache"); - string SrcCacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); - + string const CacheFile = _config->FindFile("Dir::Cache::pkgcache"); + string const SrcCacheFile = _config->FindFile("Dir::Cache::srcpkgcache"); + + // ensure the cache directory exists + if (CacheFile.empty() == false || SrcCacheFile.empty() == false) + { + string dir = _config->FindDir("Dir::Cache"); + size_t const len = dir.size(); + if (len > 5 && dir.find("/apt/", len - 6, 5) == len - 5) + dir = dir.substr(0, len - 5); + if (CacheFile.empty() == false) + CreateDirectory(dir, flNotFile(CacheFile)); + if (SrcCacheFile.empty() == false) + CreateDirectory(dir, flNotFile(SrcCacheFile)); + } + // Decide if we can write to the cache bool Writeable = false; if (CacheFile.empty() == false) @@ -825,18 +1326,26 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, else if (SrcCacheFile.empty() == false) Writeable = access(flNotFile(SrcCacheFile).c_str(),W_OK) == 0; - + if (Debug == true) + std::clog << "Do we have write-access to the cache files? " << (Writeable ? "YES" : "NO") << std::endl; + if (Writeable == false && AllowMem == false && CacheFile.empty() == false) return _error->Error(_("Unable to write to %s"),flNotFile(CacheFile).c_str()); - - Progress.OverallProgress(0,1,1,_("Reading package lists")); - + + if (Progress != NULL) + Progress->OverallProgress(0,1,1,_("Reading package lists")); + // Cache is OK, Fin. - if (CheckValidity(CacheFile,Files.begin(),Files.end(),OutMap) == true) + if (CheckValidity(CacheFile, List, Files.begin(),Files.end(),OutMap) == true) { - Progress.OverallProgress(1,1,1,_("Reading package lists")); + if (Progress != NULL) + Progress->OverallProgress(1,1,1,_("Reading package lists")); + if (Debug == true) + std::clog << "pkgcache.bin is valid - no need to build anything" << std::endl; return true; } + else if (Debug == true) + std::clog << "pkgcache.bin is NOT valid" << std::endl; /* At this point we know we need to reconstruct the package cache, begin. */ @@ -844,37 +1353,60 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, SPtr Map; if (Writeable == true && CacheFile.empty() == false) { + _error->PushToStack(); unlink(CacheFile.c_str()); - CacheF = new FileFd(CacheFile,FileFd::WriteEmpty); + CacheF = new FileFd(CacheFile,FileFd::WriteAtomic); fchmod(CacheF->Fd(),0644); - Map = new DynamicMMap(*CacheF,MMap::Public,MapSize); + Map = CreateDynamicMMap(CacheF, MMap::Public); if (_error->PendingError() == true) - return false; + { + delete CacheF.UnGuard(); + delete Map.UnGuard(); + if (Debug == true) + std::clog << "Open filebased MMap FAILED" << std::endl; + Writeable = false; + if (AllowMem == false) + { + _error->MergeWithStack(); + return false; + } + _error->RevertToStack(); + } + else + { + _error->MergeWithStack(); + if (Debug == true) + std::clog << "Open filebased MMap" << std::endl; + } } - else + if (Writeable == false || CacheFile.empty() == true) { // Just build it in memory.. - Map = new DynamicMMap(0,MapSize); + Map = CreateDynamicMMap(NULL); + if (Debug == true) + std::clog << "Open memory Map (not filebased)" << std::endl; } // Lets try the source cache. unsigned long CurrentSize = 0; unsigned long TotalSize = 0; - if (CheckValidity(SrcCacheFile,Files.begin(), + if (CheckValidity(SrcCacheFile, List, Files.begin(), Files.begin()+EndOfSource) == true) { + if (Debug == true) + std::clog << "srcpkgcache.bin is valid - populate MMap with it." << std::endl; // Preload the map with the source cache FileFd SCacheF(SrcCacheFile,FileFd::ReadOnly); - unsigned long alloc = Map->RawAllocate(SCacheF.Size()); + unsigned long const alloc = Map->RawAllocate(SCacheF.Size()); if ((alloc == 0 && _error->PendingError()) || SCacheF.Read((unsigned char *)Map->Data() + alloc, SCacheF.Size()) == false) return false; TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end()); - + // Build the status cache - pkgCacheGenerator Gen(Map.Get(),&Progress); + pkgCacheGenerator Gen(Map.Get(),Progress); if (_error->PendingError() == true) return false; if (BuildCache(Gen,Progress,CurrentSize,TotalSize, @@ -883,10 +1415,12 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, } else { + if (Debug == true) + std::clog << "srcpkgcache.bin is NOT valid - rebuild" << std::endl; TotalSize = ComputeSize(Files.begin(),Files.end()); // Build the source cache - pkgCacheGenerator Gen(Map.Get(),&Progress); + pkgCacheGenerator Gen(Map.Get(),Progress); if (_error->PendingError() == true) return false; if (BuildCache(Gen,Progress,CurrentSize,TotalSize, @@ -896,7 +1430,7 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, // Write it back if (Writeable == true && SrcCacheFile.empty() == false) { - FileFd SCacheF(SrcCacheFile,FileFd::WriteEmpty); + FileFd SCacheF(SrcCacheFile,FileFd::WriteAtomic); if (_error->PendingError() == true) return false; @@ -921,6 +1455,8 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, Files.begin()+EndOfSource,Files.end()) == false) return false; } + if (Debug == true) + std::clog << "Caches are ready for shipping" << std::endl; if (_error->PendingError() == true) return false; @@ -940,32 +1476,34 @@ bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress, return true; } /*}}}*/ -// MakeOnlyStatusCache - Build a cache with just the status files /*{{{*/ +// CacheGenerator::MakeOnlyStatusCache - Build only a status files cache/*{{{*/ // --------------------------------------------------------------------- /* */ -bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap) +__deprecated bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap) + { return pkgCacheGenerator::MakeOnlyStatusCache(&Progress, OutMap); } +bool pkgCacheGenerator::MakeOnlyStatusCache(OpProgress *Progress,DynamicMMap **OutMap) { - unsigned long MapSize = _config->FindI("APT::Cache-Limit",20*1024*1024); - vector Files; + std::vector Files; unsigned long EndOfSource = Files.size(); if (_system->AddStatusFiles(Files) == false) return false; - - SPtr Map = new DynamicMMap(0,MapSize); + + SPtr Map = CreateDynamicMMap(NULL); unsigned long CurrentSize = 0; unsigned long TotalSize = 0; TotalSize = ComputeSize(Files.begin()+EndOfSource,Files.end()); // Build the status cache - Progress.OverallProgress(0,1,1,_("Reading package lists")); - pkgCacheGenerator Gen(Map.Get(),&Progress); + if (Progress != NULL) + Progress->OverallProgress(0,1,1,_("Reading package lists")); + pkgCacheGenerator Gen(Map.Get(),Progress); if (_error->PendingError() == true) return false; if (BuildCache(Gen,Progress,CurrentSize,TotalSize, Files.begin()+EndOfSource,Files.end()) == false) return false; - + if (_error->PendingError() == true) return false; *OutMap = Map.UnGuard(); @@ -973,3 +1511,22 @@ bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap) return true; } /*}}}*/ +// IsDuplicateDescription /*{{{*/ +static bool IsDuplicateDescription(pkgCache::DescIterator Desc, + MD5SumValue const &CurMd5, std::string const &CurLang) +{ + // Descriptions in the same link-list have all the same md5 + if (Desc.end() == true || MD5SumValue(Desc.md5()) != CurMd5) + return false; + for (; Desc.end() == false; ++Desc) + if (Desc.LanguageCode() == CurLang) + return true; + return false; +} + /*}}}*/ +// CacheGenerator::FinishCache /*{{{*/ +bool pkgCacheGenerator::FinishCache(OpProgress *Progress) +{ + return true; +} + /*}}}*/