// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: pkgcachegen.cc,v 1.19 1998/10/15 07:00:00 jgg Exp $
+// $Id: pkgcachegen.cc,v 1.53.2.1 2003/12/24 23:09:17 mdz Exp $
/* ######################################################################
Package Cache Generator - Generator for the cache structure.
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
-#ifdef __GNUG__
-#pragma implementation "apt-pkg/pkgcachegen.h"
-#endif
+#include <config.h>
#include <apt-pkg/pkgcachegen.h>
#include <apt-pkg/error.h>
#include <apt-pkg/progress.h>
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/configuration.h>
-#include <apt-pkg/deblistparser.h>
-
-#include <strutl.h>
+#include <apt-pkg/pkgsystem.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/metaindex.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/hashsum_template.h>
+#include <apt-pkg/indexfile.h>
+#include <apt-pkg/md5.h>
+#include <apt-pkg/mmap.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+#include <stddef.h>
+#include <string.h>
+#include <iostream>
+#include <string>
+#include <vector>
+#include <memory>
+#include <algorithm>
#include <sys/stat.h>
#include <unistd.h>
+
+#include <apti18n.h>
/*}}}*/
+template<class T> using Dynamic = pkgCacheGenerator::Dynamic<T>;
+typedef std::vector<pkgIndexFile *>::iterator FileIterator;
+template <typename Iter> std::vector<Iter*> pkgCacheGenerator::Dynamic<Iter>::toReMap;
+
+static bool IsDuplicateDescription(pkgCache::DescIterator Desc,
+ MD5SumValue const &CurMd5, std::string const &CurLang);
+
+using std::string;
+using APT::StringView;
// CacheGenerator::pkgCacheGenerator - Constructor /*{{{*/
// ---------------------------------------------------------------------
-/* We set the diry flag and make sure that is written to the disk */
-pkgCacheGenerator::pkgCacheGenerator(DynamicMMap &Map,OpProgress &Prog) :
- Map(Map), Cache(Map), Progress(Prog)
+/* 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),
+ CurrentRlsFile(NULL), CurrentFile(NULL), d(NULL)
+{
+}
+bool pkgCacheGenerator::Start()
{
- if (_error->PendingError() == true)
- return;
-
if (Map.Size() == 0)
{
+ // Setup the map interface..
+ Cache.HeaderP = (pkgCache::Header *)Map.Data();
+ _error->PushToStack();
Map.RawAllocate(sizeof(pkgCache::Header));
+ bool const newError = _error->PendingError();
+ _error->MergeWithStack();
+ if (newError)
+ return false;
+ if (Map.Size() <= 0)
+ return false;
+
+ Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0]));
+
+ // Starting header
*Cache.HeaderP = pkgCache::Header();
+
+ // make room for the hashtables for packages and groups
+ if (Map.RawAllocate(2 * (Cache.HeaderP->GetHashTableSize() * sizeof(map_pointer_t))) == 0)
+ return false;
+
+ map_stringitem_t const idxVerSysName = WriteStringInMap(_system->VS->Label);
+ if (unlikely(idxVerSysName == 0))
+ return false;
+ map_stringitem_t const idxArchitecture = StoreString(MIXED, _config->Find("APT::Architecture"));
+ if (unlikely(idxArchitecture == 0))
+ return false;
+ map_stringitem_t idxArchitectures;
+
+ std::vector<std::string> archs = APT::Configuration::getArchitectures();
+ if (archs.size() > 1)
+ {
+ std::vector<std::string>::const_iterator a = archs.begin();
+ std::string list = *a;
+ for (++a; a != archs.end(); ++a)
+ list.append(",").append(*a);
+ idxArchitectures = WriteStringInMap(list);
+ if (unlikely(idxArchitectures == 0))
+ return false;
+ }
+ else
+ idxArchitectures = idxArchitecture;
+
+ Cache.HeaderP = (pkgCache::Header *)Map.Data();
+ Cache.HeaderP->VerSysName = idxVerSysName;
+ Cache.HeaderP->Architecture = idxArchitecture;
+ Cache.HeaderP->SetArchitectures(idxArchitectures);
+
+ // Calculate the hash for the empty map, so ReMap does not fail
+ Cache.HeaderP->CacheFileSize = Cache.CacheHash();
+ Cache.ReMap();
}
+ else
+ {
+ // Map directly from the existing file
+ Cache.ReMap();
+ Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0]));
+ if (Cache.VS != _system->VS)
+ return _error->Error(_("Cache has an incompatible versioning system"));
+ }
+
Cache.HeaderP->Dirty = true;
Map.Sync(0,sizeof(pkgCache::Header));
- Map.UsePools(*Cache.HeaderP->Pools,sizeof(Cache.HeaderP->Pools)/sizeof(Cache.HeaderP->Pools[0]));
+ return true;
}
/*}}}*/
// CacheGenerator::~pkgCacheGenerator - Destructor /*{{{*/
advoid a problem during a crash */
pkgCacheGenerator::~pkgCacheGenerator()
{
- if (_error->PendingError() == true)
+ if (_error->PendingError() == true || Map.validData() == false)
return;
if (Map.Sync() == false)
return;
Cache.HeaderP->Dirty = false;
+ Cache.HeaderP->CacheFileSize = Cache.CacheHash();
+
+ if (_config->FindB("Debug::pkgCacheGen", false))
+ std::clog << "Produced cache with hash " << Cache.HeaderP->CacheFileSize << std::endl;
Map.Sync(0,sizeof(pkgCache::Header));
}
/*}}}*/
+void pkgCacheGenerator::ReMap(void const * const oldMap, void const * const newMap, size_t oldSize) {/*{{{*/
+ // Prevent multiple remaps of the same iterator. If seen.insert(iterator)
+ // returns (something, true) the iterator was not yet seen and we can
+ // remap it.
+ std::unordered_set<void *> seen;
+ 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 const * const) newMap - (pkgCache::PackageFile const * const) oldMap;
+ CurrentRlsFile += (pkgCache::ReleaseFile const * const) newMap - (pkgCache::ReleaseFile const * const) oldMap;
+
+ for (std::vector<pkgCache::GrpIterator*>::const_iterator i = Dynamic<pkgCache::GrpIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::GrpIterator>::toReMap.end(); ++i)
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (std::vector<pkgCache::PkgIterator*>::const_iterator i = Dynamic<pkgCache::PkgIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::PkgIterator>::toReMap.end(); ++i)
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (std::vector<pkgCache::VerIterator*>::const_iterator i = Dynamic<pkgCache::VerIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::VerIterator>::toReMap.end(); ++i)
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (std::vector<pkgCache::DepIterator*>::const_iterator i = Dynamic<pkgCache::DepIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::DepIterator>::toReMap.end(); ++i)
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (std::vector<pkgCache::DescIterator*>::const_iterator i = Dynamic<pkgCache::DescIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::DescIterator>::toReMap.end(); ++i)
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (std::vector<pkgCache::PrvIterator*>::const_iterator i = Dynamic<pkgCache::PrvIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::PrvIterator>::toReMap.end(); ++i)
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (std::vector<pkgCache::PkgFileIterator*>::const_iterator i = Dynamic<pkgCache::PkgFileIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::PkgFileIterator>::toReMap.end(); ++i)
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (std::vector<pkgCache::RlsFileIterator*>::const_iterator i = Dynamic<pkgCache::RlsFileIterator>::toReMap.begin();
+ i != Dynamic<pkgCache::RlsFileIterator>::toReMap.end(); ++i)
+ if (std::get<1>(seen.insert(*i)) == true)
+ (*i)->ReMap(oldMap, newMap);
+ for (APT::StringView* ViewP : Dynamic<APT::StringView>::toReMap) {
+ if (std::get<1>(seen.insert(ViewP)) == false)
+ continue;
+ // Ignore views outside of the cache.
+ if (ViewP->data() < static_cast<const char*>(oldMap)
+ || ViewP->data() > static_cast<const char*>(oldMap) + oldSize)
+ continue;
+ const char *data = ViewP->data() + (static_cast<const char*>(newMap) - static_cast<const char*>(oldMap));
+ *ViewP = StringView(data , ViewP->size());
+ }
+} /*}}}*/
+// CacheGenerator::WriteStringInMap /*{{{*/
+map_stringitem_t pkgCacheGenerator::WriteStringInMap(const char *String,
+ const unsigned long &Len) {
+ size_t oldSize = Map.Size();
+ void const * const oldMap = Map.Data();
+ map_stringitem_t const index = Map.WriteString(String, Len);
+ if (index != 0)
+ ReMap(oldMap, Map.Data(), oldSize);
+ return index;
+}
+ /*}}}*/
+// CacheGenerator::WriteStringInMap /*{{{*/
+map_stringitem_t pkgCacheGenerator::WriteStringInMap(const char *String) {
+ size_t oldSize = Map.Size();
+ void const * const oldMap = Map.Data();
+ map_stringitem_t const index = Map.WriteString(String);
+ if (index != 0)
+ ReMap(oldMap, Map.Data(), oldSize);
+ return index;
+}
+ /*}}}*/
+map_pointer_t pkgCacheGenerator::AllocateInMap(const unsigned long &size) {/*{{{*/
+ size_t oldSize = Map.Size();
+ void const * const oldMap = Map.Data();
+ map_pointer_t const index = Map.Allocate(size);
+ if (index != 0)
+ ReMap(oldMap, Map.Data(), oldSize);
+ return index;
+}
+ /*}}}*/
// CacheGenerator::MergeList - Merge the package list /*{{{*/
// ---------------------------------------------------------------------
/* This provides the generation of the entries in the cache. Each loop
goes through a single package record from the underlying parse engine. */
-bool pkgCacheGenerator::MergeList(ListParser &List)
+bool pkgCacheGenerator::MergeList(ListParser &List,
+ pkgCache::VerIterator *OutVer)
{
List.Owner = this;
- int Counter = 0;
+ unsigned int Counter = 0;
while (List.Step() == true)
{
+ string const PackageName = List.Package();
+ if (PackageName.empty() == true)
+ return false;
+
+ Counter++;
+ if (Counter % 100 == 0 && Progress != 0)
+ Progress->Progress(List.Offset());
+
+ APT::StringView Arch = List.Architecture();
+ Dynamic<APT::StringView> DynArch(Arch);
+ APT::StringView Version = List.Version();
+ Dynamic<APT::StringView> DynVersion(Version);
+ if (Version.empty() == true && Arch.empty() == true)
+ {
+ // package descriptions
+ if (MergeListGroup(List, PackageName) == false)
+ return false;
+ continue;
+ }
+
// Get a pointer to the package structure
- string PackageName = List.Package();
pkgCache::PkgIterator Pkg;
- if (NewPackage(Pkg,PackageName) == false)
- return _error->Error("Error occured while processing %s (NewPackage)",PackageName.c_str());
- Counter++;
- if (Counter % 100 == 0)
- Progress.Progress(List.Offset());
+ Dynamic<pkgCache::PkgIterator> 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);
+
- /* 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();
if (Version.empty() == true)
{
- if (List.UsePackage(Pkg,pkgCache::VerIterator(Cache)) == false)
- return _error->Error("Error occured while processing %s (UsePackage1)",PackageName.c_str());
+ if (MergeListPackage(List, Pkg) == false)
+ return false;
+ }
+ else
+ {
+ if (MergeListVersion(List, Pkg, Version, OutVer) == false)
+ return false;
+ }
+
+ if (OutVer != 0)
+ return true;
+ }
+
+ if (Cache.HeaderP->PackageCount >= std::numeric_limits<map_id_t>::max())
+ return _error->Error(_("Wow, you exceeded the number of package "
+ "names this APT is capable of."));
+ if (Cache.HeaderP->VersionCount >= std::numeric_limits<map_id_t>::max())
+ return _error->Error(_("Wow, you exceeded the number of versions "
+ "this APT is capable of."));
+ if (Cache.HeaderP->DescriptionCount >= std::numeric_limits<map_id_t>::max())
+ return _error->Error(_("Wow, you exceeded the number of descriptions "
+ "this APT is capable of."));
+ if (Cache.HeaderP->DependsCount >= std::numeric_limits<map_id_t>::max())
+ return _error->Error(_("Wow, you exceeded the number of dependencies "
+ "this APT is capable of."));
+
+ 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<pkgCache::GrpIterator> DynGrp(Grp);
+
+ pkgCache::PkgIterator Pkg;
+ Dynamic<pkgCache::PkgIterator> 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<pkgCache::VerIterator> 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::vector<std::string> availDesc = List.AvailableDescriptionLanguages();
+ for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
+ {
+ pkgCache::DescIterator VerDesc = Ver.DescriptionList();
+
+ // a version can only have one md5 describing it
+ if (VerDesc.end() == true || MD5SumValue(VerDesc.md5()) != CurMd5)
continue;
+
+ map_stringitem_t md5idx = VerDesc->md5sum;
+ for (std::vector<std::string>::const_iterator CurLang = availDesc.begin(); CurLang != availDesc.end(); ++CurLang)
+ {
+ // don't add a new description if we have one for the given
+ // md5 && language
+ if (IsDuplicateDescription(VerDesc, CurMd5, *CurLang) == true)
+ continue;
+
+ AddNewDescription(List, Ver, *CurLang, CurMd5, md5idx);
}
- pkgCache::VerIterator Ver = Pkg.VersionList();
- unsigned long *Last = &Pkg->VersionList;
+ // 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,
+ APT::StringView const &Version, pkgCache::VerIterator* &OutVer)
+{
+ pkgCache::VerIterator Ver = Pkg.VersionList();
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
+ map_pointer_t *LastVer = &Pkg->VersionList;
+ void const * oldMap = Map.Data();
+
+ unsigned short 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; Last = &Ver->NextVer, Ver++)
+ for (; Ver.end() == false; LastVer = &Ver->NextVer, ++Ver)
{
- Res = pkgVersionCompare(Version.begin(),Version.end(),Ver.VerStr(),
- Ver.VerStr() + strlen(Ver.VerStr()));
- if (Res >= 0)
+ char const * const VerStr = Ver.VerStr();
+ Res = Cache.VS->DoCmpVersion(Version.data(), Version.data() + Version.length(),
+ VerStr, VerStr + strlen(VerStr));
+ // Version is higher as current version - insert here
+ if (Res > 0)
break;
+ // Versionstrings are equal - is hash also equal?
+ if (Res == 0)
+ {
+ if (List.SameVersion(Hash, Ver) == true)
+ break;
+ // sort (volatile) sources above not-sources like the status file
+ if ((CurrentFile->Flags & pkgCache::Flag::NotSource) == 0)
+ {
+ auto VF = Ver.FileList();
+ for (; VF.end() == false; ++VF)
+ if (VF.File().Flagged(pkgCache::Flag::NotSource) == false)
+ break;
+ if (VF.end() == true)
+ 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 */
- if (Res == 0)
+
+ /* 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 occured 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 occured while processing %s (NewFileVer1)",PackageName.c_str());
-
- continue;
- }
+ return _error->Error(_("Error occurred while processing %s (%s%d)"),
+ Pkg.Name(), "NewFileVer", 1);
- // Add a new version
- *Last = NewVersion(Ver,Version,*Last);
- Ver->ParentPkg = Pkg.Index();
- if (List.NewVersion(Ver) == false)
- return _error->Error("Error occured while processing %s (NewVersion1)",PackageName.c_str());
+ // Read only a single record and return
+ if (OutVer != 0)
+ {
+ *OutVer = Ver;
+ return true;
+ }
+
+ return true;
+ }
+ }
+
+ // Add a new version
+ map_pointer_t const verindex = NewVersion(Ver, Version, Pkg.Index(), Hash, *LastVer);
+ if (unlikely(verindex == 0))
+ return _error->Error(_("Error occurred while processing %s (%s%d)"),
+ Pkg.Name(), "NewVersion", 1);
+
+ if (oldMap != Map.Data())
+ LastVer += (map_pointer_t const * const) Map.Data() - (map_pointer_t const * const) oldMap;
+ *LastVer = verindex;
+
+ 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<pkgCache::GrpIterator> 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<pkgCache::PkgIterator> DynP(P);
+ for (; P.end() != true; P = Grp.NextPkg(P))
+ {
+ if (P->ID == Pkg->ID)
+ continue;
+ pkgCache::VerIterator V = P.VersionList();
+ Dynamic<pkgCache::VerIterator> 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);
+ }
+ }
+ if (unlikely(AddImplicitDepends(Grp, Pkg, Ver) == false))
+ return _error->Error(_("Error occurred while processing %s (%s%d)"),
+ Pkg.Name(), "AddImplicitDepends", 2);
+
+ // Read only a single record and return
+ if (OutVer != 0)
+ {
+ *OutVer = Ver;
+ return true;
+ }
+
+ /* Record the Description(s) based on their master md5sum */
+ MD5SumValue CurMd5 = List.Description_md5();
- if (List.UsePackage(Pkg,Ver) == false)
- return _error->Error("Error occured while processing %s (UsePackage3)",PackageName.c_str());
-
- if (NewFileVer(Ver,List) == false)
- return _error->Error("Error occured while processing %s (NewVersion2)",PackageName.c_str());
+ /* 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)
+ {
+ if (V->DescriptionList == 0 || MD5SumValue(V.DescriptionList().md5()) != CurMd5)
+ continue;
+ Ver->DescriptionList = V->DescriptionList;
+ }
}
+ // We haven't found reusable descriptions, so add the first description(s)
+ map_stringitem_t md5idx = Ver->DescriptionList == 0 ? 0 : Ver.DescriptionList()->md5sum;
+ std::vector<std::string> availDesc = List.AvailableDescriptionLanguages();
+ for (std::vector<std::string>::const_iterator CurLang = availDesc.begin(); CurLang != availDesc.end(); ++CurLang)
+ if (AddNewDescription(List, Ver, *CurLang, CurMd5, md5idx) == false)
+ return false;
return true;
}
/*}}}*/
-// CacheGenerator::NewPackage - Add a new package /*{{{*/
+bool pkgCacheGenerator::AddNewDescription(ListParser &List, pkgCache::VerIterator &Ver, std::string const &lang, MD5SumValue const &CurMd5, map_stringitem_t &md5idx) /*{{{*/
+{
+ pkgCache::DescIterator Desc;
+ Dynamic<pkgCache::DescIterator> DynDesc(Desc);
+
+ map_pointer_t const descindex = NewDescription(Desc, lang, CurMd5, md5idx);
+ if (unlikely(descindex == 0))
+ return _error->Error(_("Error occurred while processing %s (%s%d)"),
+ Ver.ParentPkg().Name(), "NewDescription", 1);
+
+ md5idx = Desc->md5sum;
+ Desc->ParentPkg = Ver.ParentPkg().Index();
+
+ // we add at the end, so that the start is constant as we need
+ // that to be able to efficiently share these lists
+ pkgCache::DescIterator VerDesc = Ver.DescriptionList(); // old value might be invalid after ReMap
+ for (;VerDesc.end() == false && VerDesc->NextDesc != 0; ++VerDesc);
+ map_pointer_t * const LastNextDesc = (VerDesc.end() == true) ? &Ver->DescriptionList : &VerDesc->NextDesc;
+ *LastNextDesc = descindex;
+
+ if (NewFileDesc(Desc,List) == false)
+ return _error->Error(_("Error occurred while processing %s (%s%d)"),
+ Ver.ParentPkg().Name(), "NewFileDesc", 1);
+
+ return true;
+}
+ /*}}}*/
+ /*}}}*/
+// 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,string Name)
+/* This creates a new group structure and adds it to the hash table */
+bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, StringView Name)
{
- Pkg = Cache.FindPkg(Name);
- if (Pkg.end() == false)
+ Dynamic<StringView> DName(Name);
+ 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_pointer_t 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_stringitem_t const idxName = StoreString(PKGNAME, 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);
+ map_pointer_t *insertAt = &Cache.HeaderP->GrpHashTableP()[Hash];
+
+ while (*insertAt != 0 && Name.compare(Cache.ViewString((Cache.GrpP + *insertAt)->Name)) > 0)
+ insertAt = &(Cache.GrpP + *insertAt)->Next;
+ Grp->Next = *insertAt;
+ *insertAt = 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, StringView Name,
+ StringView Arch) {
+ pkgCache::GrpIterator Grp;
+ Dynamic<StringView> DName(Name);
+ Dynamic<StringView> DArch(Arch);
+ Dynamic<pkgCache::GrpIterator> DynGrp(Grp);
+ if (unlikely(NewGroup(Grp, Name) == false))
+ return false;
+
+ Pkg = Grp.FindPkg(Arch);
+ if (Pkg.end() == false)
+ return true;
+
+ // Get a structure
+ map_pointer_t const Package = AllocateInMap(sizeof(pkgCache::Package));
+ if (unlikely(Package == 0))
+ return false;
+ Pkg = pkgCache::PkgIterator(Cache,Cache.PkgP + Package);
+
+ // Set the name, arch and the ID
+ APT_IGNORE_DEPRECATED(Pkg->Name = Grp->Name;)
+ Pkg->Group = Grp.Index();
+ // all is mapped to the native architecture
+ map_stringitem_t const idxArch = (Arch == "all") ? Cache.HeaderP->Architecture : StoreString(MIXED, Arch);
+ if (unlikely(idxArch == 0))
return false;
+ Pkg->Arch = idxArch;
Pkg->ID = Cache.HeaderP->PackageCount++;
-
+
+ // Insert the package into our package list
+ if (Grp->FirstPackage == 0) // the group is new
+ {
+ Grp->FirstPackage = Package;
+ // Insert it into the hash table
+ map_id_t const Hash = Cache.Hash(Name);
+ map_pointer_t *insertAt = &Cache.HeaderP->PkgHashTableP()[Hash];
+ while (*insertAt != 0 && Name.compare(Cache.StrP + (Cache.GrpP + (Cache.PkgP + *insertAt)->Group)->Name) > 0)
+ insertAt = &(Cache.PkgP + *insertAt)->NextPackage;
+ Pkg->NextPackage = *insertAt;
+ *insertAt = Package;
+ }
+ else // Group the Packages together
+ {
+ // if sibling is provided by another package, this one is too
+ {
+ pkgCache::PkgIterator const M = Grp.FindPreferredPkg(false); // native or any foreign pkg will do
+ if (M.end() == false) {
+ pkgCache::PrvIterator Prv;
+ Dynamic<pkgCache::PrvIterator> DynPrv(Prv);
+ for (Prv = M.ProvidesList(); Prv.end() == false; ++Prv)
+ {
+ if ((Prv->Flags & pkgCache::Flag::ArchSpecific) != 0)
+ continue;
+ pkgCache::VerIterator Ver = Prv.OwnerVer();
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
+ if ((Ver->MultiArch & pkgCache::Version::Allowed) == pkgCache::Version::Allowed ||
+ ((Ver->MultiArch & pkgCache::Version::Foreign) == pkgCache::Version::Foreign &&
+ (Prv->Flags & pkgCache::Flag::MultiArchImplicit) == 0))
+ {
+ if (APT::Configuration::checkArchitecture(Ver.ParentPkg().Arch()) == false)
+ continue;
+ if (NewProvides(Ver, Pkg, Prv->ProvideVersion, Prv->Flags) == false)
+ return false;
+ }
+ }
+ }
+ }
+ // let M-A:foreign package siblings provide this package
+ {
+ pkgCache::PkgIterator P;
+ pkgCache::VerIterator Ver;
+ Dynamic<pkgCache::PkgIterator> DynP(P);
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
+
+ for (P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+ {
+ if (APT::Configuration::checkArchitecture(P.Arch()) == false)
+ continue;
+ for (Ver = P.VersionList(); Ver.end() == false; ++Ver)
+ if ((Ver->MultiArch & pkgCache::Version::Foreign) == pkgCache::Version::Foreign)
+ if (NewProvides(Ver, Pkg, Ver->VerStr, pkgCache::Flag::MultiArchImplicit) == false)
+ return false;
+ }
+ }
+ // and negative dependencies, don't forget negative dependencies
+ {
+ pkgCache::PkgIterator const M = Grp.FindPreferredPkg(false);
+ if (M.end() == false) {
+ pkgCache::DepIterator Dep;
+ Dynamic<pkgCache::DepIterator> DynDep(Dep);
+ for (Dep = M.RevDependsList(); Dep.end() == false; ++Dep)
+ {
+ if ((Dep->CompareOp & (pkgCache::Dep::ArchSpecific | pkgCache::Dep::MultiArchImplicit)) != 0)
+ continue;
+ if (Dep->Type != pkgCache::Dep::DpkgBreaks && Dep->Type != pkgCache::Dep::Conflicts &&
+ Dep->Type != pkgCache::Dep::Replaces)
+ continue;
+ pkgCache::VerIterator Ver = Dep.ParentVer();
+ Dynamic<pkgCache::VerIterator> DynVer(Ver);
+ map_pointer_t * unused = NULL;
+ if (NewDepends(Pkg, Ver, Dep->Version, Dep->CompareOp, Dep->Type, unused) == false)
+ return false;
+ }
+ }
+ }
+
+ // 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;
+
+ // lazy-create foo (of amd64) provides foo:amd64 at the time we first need it
+ if (Arch == "any")
+ {
+ size_t const found = Name.rfind(':');
+ StringView ArchA = Name.substr(found + 1);
+ if (ArchA != "any")
+ {
+ // ArchA is used inside the loop which might remap (NameA is not used)
+ Dynamic<StringView> DynArchA(ArchA);
+ StringView NameA = Name.substr(0, found);
+ pkgCache::PkgIterator PkgA = Cache.FindPkg(NameA, ArchA);
+ Dynamic<pkgCache::PkgIterator> DynPkgA(PkgA);
+ if (PkgA.end())
+ {
+ Dynamic<StringView> DynNameA(NameA);
+ if (NewPackage(PkgA, NameA, ArchA) == false)
+ return false;
+ }
+ if (unlikely(PkgA.end()))
+ return _error->Fatal("NewPackage was successful for %s:%s,"
+ "but the package doesn't exist anyhow!",
+ NameA.to_string().c_str(), ArchA.to_string().c_str());
+ else
+ {
+ pkgCache::PrvIterator Prv = PkgA.ProvidesList();
+ for (; Prv.end() == false; ++Prv)
+ {
+ if (Prv.IsMultiArchImplicit())
+ continue;
+ pkgCache::VerIterator V = Prv.OwnerVer();
+ if (ArchA != V.ParentPkg().Arch())
+ continue;
+ if (NewProvides(V, Pkg, V->VerStr, pkgCache::Flag::MultiArchImplicit | pkgCache::Flag::ArchSpecific) == false)
+ return false;
+ }
+ pkgCache::VerIterator V = PkgA.VersionList();
+ Dynamic<pkgCache::VerIterator> DynV(V);
+ for (; V.end() == false; ++V)
+ {
+ if (NewProvides(V, Pkg, V->VerStr, pkgCache::Flag::MultiArchImplicit | pkgCache::Flag::ArchSpecific) == false)
+ return false;
+ }
+ }
+ }
+ }
+ return true;
+}
+ /*}}}*/
+// CacheGenerator::AddImplicitDepends /*{{{*/
+bool pkgCacheGenerator::AddImplicitDepends(pkgCache::GrpIterator &G,
+ pkgCache::PkgIterator &P,
+ pkgCache::VerIterator &V)
+{
+ APT::StringView Arch = P.Arch() == NULL ? "" : P.Arch();
+ Dynamic<APT::StringView> DynArch(Arch);
+ map_pointer_t *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<pkgCache::PkgIterator> DynD(D);
+ map_stringitem_t const VerStrIdx = V->VerStr;
+ 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, VerStrIdx,
+ pkgCache::Dep::Less | pkgCache::Dep::MultiArchImplicit, pkgCache::Dep::Replaces,
+ OldDepLast);
+ // Breaks: ${self}:other (!= ${binary:Version})
+ NewDepends(D, V, VerStrIdx,
+ pkgCache::Dep::NotEquals | pkgCache::Dep::MultiArchImplicit, pkgCache::Dep::DpkgBreaks,
+ OldDepLast);
+ } else {
+ // Conflicts: ${self}:other
+ NewDepends(D, V, 0,
+ pkgCache::Dep::NoOp | pkgCache::Dep::MultiArchImplicit, 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_pointer_t *OldDepLast = NULL;
+ bool const coInstall = ((V->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same);
+ if (coInstall == true)
+ {
+ map_stringitem_t const VerStrIdx = V->VerStr;
+ // Replaces: ${self}:other ( << ${binary:Version})
+ NewDepends(D, V, VerStrIdx,
+ pkgCache::Dep::Less | pkgCache::Dep::MultiArchImplicit, pkgCache::Dep::Replaces,
+ OldDepLast);
+ // Breaks: ${self}:other (!= ${binary:Version})
+ NewDepends(D, V, VerStrIdx,
+ pkgCache::Dep::NotEquals | pkgCache::Dep::MultiArchImplicit, pkgCache::Dep::DpkgBreaks,
+ OldDepLast);
+ } else {
+ // Conflicts: ${self}:other
+ NewDepends(D, V, 0,
+ pkgCache::Dep::NoOp | pkgCache::Dep::MultiArchImplicit, pkgCache::Dep::Conflicts,
+ OldDepLast);
+ }
return true;
}
+
/*}}}*/
// CacheGenerator::NewFileVer - Create a new File<->Version association /*{{{*/
// ---------------------------------------------------------------------
bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver,
ListParser &List)
{
+ if (CurrentFile == 0)
+ return true;
+
// Get a structure
- unsigned long VerFile = Map.Allocate(sizeof(pkgCache::VerFile));
+ map_pointer_t const VerFile = AllocateInMap(sizeof(pkgCache::VerFile));
if (VerFile == 0)
- return 0;
+ return false;
pkgCache::VerFileIterator VF(Cache,Cache.VerFileP + VerFile);
VF->File = CurrentFile - Cache.PkgFileP;
- VF->NextFile = Ver->FileList;
- Ver->FileList = VF.Index();
+
+ // Link it to the end of the list
+ map_pointer_t *Last = &Ver->FileList;
+ for (pkgCache::VerFileIterator V = Ver.FileList(); V.end() == false; ++V)
+ Last = &V->NextFile;
+ VF->NextFile = *Last;
+ *Last = VF.Index();
+
VF->Offset = List.Offset();
VF->Size = List.Size();
if (Cache.HeaderP->MaxVerFileSize < VF->Size)
Cache.HeaderP->MaxVerFileSize = VF->Size;
+ Cache.HeaderP->VerFileCount++;
+
return true;
}
/*}}}*/
// CacheGenerator::NewVersion - Create a new Version /*{{{*/
// ---------------------------------------------------------------------
/* This puts a version structure in the linked list */
-unsigned long pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver,
- string VerStr,
- unsigned long Next)
+map_pointer_t pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver,
+ APT::StringView const &VerStr,
+ map_pointer_t const ParentPkg,
+ unsigned short const Hash,
+ map_pointer_t const Next)
{
// Get a structure
- unsigned long Version = Map.Allocate(sizeof(pkgCache::Version));
+ map_pointer_t const Version = AllocateInMap(sizeof(pkgCache::Version));
if (Version == 0)
return 0;
// Fill it in
Ver = pkgCache::VerIterator(Cache,Cache.VerP + Version);
+ //Dynamic<pkgCache::VerIterator> DynV(Ver); // caller MergeListVersion already takes care of it
Ver->NextVer = Next;
+ Ver->ParentPkg = ParentPkg;
+ Ver->Hash = Hash;
Ver->ID = Cache.HeaderP->VersionCount++;
- Ver->VerStr = Map.WriteString(VerStr);
- if (Ver->VerStr == 0)
+
+ // try to find the version string in the group for reuse
+ pkgCache::PkgIterator Pkg = Ver.ParentPkg();
+ pkgCache::GrpIterator Grp = Pkg.Group();
+ if (Pkg.end() == false && Grp.end() == false)
+ {
+ for (pkgCache::PkgIterator P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+ {
+ if (Pkg == P)
+ continue;
+ for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V)
+ {
+ int const cmp = strncmp(V.VerStr(), VerStr.data(), VerStr.length());
+ if (cmp == 0 && V.VerStr()[VerStr.length()] == '\0')
+ {
+ Ver->VerStr = V->VerStr;
+ return Version;
+ }
+ else if (cmp < 0)
+ break;
+ }
+ }
+ }
+ // haven't found the version string, so create
+ map_stringitem_t const idxVerStr = StoreString(VERSIONNUMBER, VerStr);
+ if (unlikely(idxVerStr == 0))
return 0;
-
+ Ver->VerStr = idxVerStr;
return Version;
}
/*}}}*/
-// ListParser::NewDepends - Create a dependency element /*{{{*/
+// CacheGenerator::NewFileDesc - Create a new File<->Desc association /*{{{*/
// ---------------------------------------------------------------------
-/* 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,
- string PackageName,
- string Version,
- unsigned int Op,
- unsigned int Type)
+/* */
+bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc,
+ ListParser &List)
{
- pkgCache &Cache = Owner->Cache;
+ if (CurrentFile == 0)
+ return true;
// Get a structure
- unsigned long Dependency = Owner->Map.Allocate(sizeof(pkgCache::Dependency));
- if (Dependency == 0)
- return false;
-
- // Fill it in
- pkgCache::DepIterator Dep(Cache,Cache.DepP + Dependency);
- 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)
+ map_pointer_t const DescFile = AllocateInMap(sizeof(pkgCache::DescFile));
+ if (DescFile == 0)
return false;
+
+ pkgCache::DescFileIterator DF(Cache,Cache.DescFileP + DescFile);
+ DF->File = CurrentFile - Cache.PkgFileP;
+
+ // Link it to the end of the list
+ map_pointer_t *Last = &Desc->FileList;
+ for (pkgCache::DescFileIterator D = Desc.FileList(); D.end() == false; ++D)
+ Last = &D->NextFile;
+
+ DF->NextFile = *Last;
+ *Last = DF.Index();
- // 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)
- return false;
- }
-
- // 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)
- unsigned long *Last = &Ver->DependsList;
- for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; D++)
- Last = &D->NextDepends;
- Dep->NextDepends = *Last;
- *Last = Dep.Index();
+ DF->Offset = List.Offset();
+ DF->Size = List.Size();
+ if (Cache.HeaderP->MaxDescFileSize < DF->Size)
+ Cache.HeaderP->MaxDescFileSize = DF->Size;
+ Cache.HeaderP->DescFileCount++;
return true;
}
/*}}}*/
-// ListParser::NewProvides - Create a Provides element /*{{{*/
+// CacheGenerator::NewDescription - Create a new Description /*{{{*/
// ---------------------------------------------------------------------
-/* */
-bool pkgCacheGenerator::ListParser::NewProvides(pkgCache::VerIterator Ver,
- string PackageName,
- string Version)
+/* This puts a description structure in the linked list */
+map_pointer_t pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc,
+ const string &Lang,
+ const MD5SumValue &md5sum,
+ map_stringitem_t const idxmd5str)
{
- pkgCache &Cache = Owner->Cache;
-
- // We do not add self referencing provides
- if (Ver.ParentPkg().Name() == PackageName)
- return true;
-
// Get a structure
- unsigned long Provides = Owner->Map.Allocate(sizeof(pkgCache::Provides));
- if (Provides == 0)
- return false;
-
+ map_pointer_t const Description = AllocateInMap(sizeof(pkgCache::Description));
+ if (Description == 0)
+ return 0;
+
// Fill it in
- pkgCache::PrvIterator Prv(Cache,Cache.ProvideP + Provides,Cache.PkgP);
- Prv->Version = Ver.Index();
- Prv->NextPkgProv = Ver->ProvidesList;
- Ver->ProvidesList = Prv.Index();
- if (Version.empty() == false && (Prv->Version = WriteString(Version)) == 0)
- return false;
-
- // Locate the target package
+ Desc = pkgCache::DescIterator(Cache,Cache.DescP + Description);
+ Desc->ID = Cache.HeaderP->DescriptionCount++;
+ map_stringitem_t const idxlanguage_code = StoreString(MIXED, Lang);
+ if (unlikely(idxlanguage_code == 0))
+ return 0;
+ Desc->language_code = idxlanguage_code;
+
+ if (idxmd5str != 0)
+ Desc->md5sum = idxmd5str;
+ else
+ {
+ map_stringitem_t const idxmd5sum = WriteStringInMap(md5sum.Value());
+ if (unlikely(idxmd5sum == 0))
+ return 0;
+ Desc->md5sum = idxmd5sum;
+ }
+
+ return Description;
+}
+ /*}}}*/
+// 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::NewDepends(pkgCache::PkgIterator &Pkg,
+ pkgCache::VerIterator &Ver,
+ map_pointer_t const Version,
+ uint8_t const Op,
+ uint8_t const Type,
+ map_pointer_t* &OldDepLast)
+{
+ void const * const oldMap = Map.Data();
+ // Get a structure
+ map_pointer_t const Dependency = AllocateInMap(sizeof(pkgCache::Dependency));
+ if (unlikely(Dependency == 0))
+ return false;
+
+ bool isDuplicate = false;
+ map_pointer_t DependencyData = 0;
+ map_pointer_t PreviousData = 0;
+ if (Pkg->RevDepends != 0)
+ {
+ pkgCache::Dependency const * const L = Cache.DepP + Pkg->RevDepends;
+ DependencyData = L->DependencyData;
+ do {
+ pkgCache::DependencyData const * const D = Cache.DepDataP + DependencyData;
+ if (Version > D->Version)
+ break;
+ if (D->Version == Version && D->Type == Type && D->CompareOp == Op)
+ {
+ isDuplicate = true;
+ break;
+ }
+ PreviousData = DependencyData;
+ DependencyData = D->NextData;
+ } while (DependencyData != 0);
+ }
+
+ if (isDuplicate == false)
+ {
+ DependencyData = AllocateInMap(sizeof(pkgCache::DependencyData));
+ if (unlikely(DependencyData == 0))
+ return false;
+ }
+
+ pkgCache::Dependency * Link = Cache.DepP + Dependency;
+ Link->ParentVer = Ver.Index();
+ Link->DependencyData = DependencyData;
+ Link->ID = Cache.HeaderP->DependsCount++;
+
+ pkgCache::DepIterator Dep(Cache, Link);
+ if (isDuplicate == false)
+ {
+ Dep->Type = Type;
+ Dep->CompareOp = Op;
+ Dep->Version = Version;
+ Dep->Package = Pkg.Index();
+ ++Cache.HeaderP->DependsDataCount;
+ if (PreviousData != 0)
+ {
+ pkgCache::DependencyData * const D = Cache.DepDataP + PreviousData;
+ Dep->NextData = D->NextData;
+ D->NextData = DependencyData;
+ }
+ else if (Pkg->RevDepends != 0)
+ {
+ pkgCache::Dependency const * const D = Cache.DepP + Pkg->RevDepends;
+ Dep->NextData = D->DependencyData;
+ }
+ }
+
+ if (isDuplicate == true || PreviousData != 0)
+ {
+ pkgCache::Dependency * const L = Cache.DepP + Pkg->RevDepends;
+ Link->NextRevDepends = L->NextRevDepends;
+ L->NextRevDepends = Dependency;
+ }
+ else
+ {
+ Link->NextRevDepends = Pkg->RevDepends;
+ Pkg->RevDepends = Dependency;
+ }
+
+
+ // 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)
+ OldDepLast = &D->NextDepends;
+ } else if (oldMap != Map.Data())
+ OldDepLast += (map_pointer_t const * const) Map.Data() - (map_pointer_t const * const) oldMap;
+
+ Dep->NextDepends = *OldDepLast;
+ *OldDepLast = Dependency;
+ OldDepLast = &Dep->NextDepends;
+ 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 pkgCacheListParser::NewDepends(pkgCache::VerIterator &Ver,
+ StringView PackageName,
+ StringView Arch,
+ StringView Version,
+ uint8_t const Op,
+ uint8_t const Type)
+{
+ pkgCache::GrpIterator Grp;
+ Dynamic<pkgCache::GrpIterator> DynGrp(Grp);
+ Dynamic<StringView> DynPackageName(PackageName);
+ Dynamic<StringView> DynArch(Arch);
+ Dynamic<StringView> DynVersion(Version);
+ if (unlikely(Owner->NewGroup(Grp, PackageName) == false))
+ return false;
+
+ map_stringitem_t idxVersion = 0;
+ if (Version.empty() == false)
+ {
+ int const CmpOp = Op & 0x0F;
+ // =-deps are used (79:1) for lockstep on same-source packages (e.g. data-packages)
+ if (CmpOp == pkgCache::Dep::Equals && Version == Ver.VerStr())
+ idxVersion = Ver->VerStr;
+
+ if (idxVersion == 0)
+ {
+ idxVersion = StoreString(pkgCacheGenerator::VERSIONNUMBER, Version);
+ if (unlikely(idxVersion == 0))
+ return false;
+ }
+ }
+
+ bool const isNegative = (Type == pkgCache::Dep::DpkgBreaks ||
+ Type == pkgCache::Dep::Conflicts ||
+ Type == pkgCache::Dep::Replaces);
+
+ pkgCache::PkgIterator Pkg;
+ Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
+ if (isNegative == false || (Op & pkgCache::Dep::ArchSpecific) == pkgCache::Dep::ArchSpecific || Grp->FirstPackage == 0)
+ {
+ // Locate the target package
+ Pkg = Grp.FindPkg(Arch);
+ if (Pkg.end() == true) {
+ if (unlikely(Owner->NewPackage(Pkg, PackageName, Arch) == false))
+ return false;
+ }
+
+ /* Caching the old end point speeds up generation substantially */
+ if (OldDepVer != Ver) {
+ OldDepLast = NULL;
+ OldDepVer = Ver;
+ }
+
+ return Owner->NewDepends(Pkg, Ver, idxVersion, Op, Type, OldDepLast);
+ }
+ else
+ {
+ /* Caching the old end point speeds up generation substantially */
+ if (OldDepVer != Ver) {
+ OldDepLast = NULL;
+ OldDepVer = Ver;
+ }
+
+ for (Pkg = Grp.PackageList(); Pkg.end() == false; Pkg = Grp.NextPkg(Pkg))
+ {
+ if (Owner->NewDepends(Pkg, Ver, idxVersion, Op, Type, OldDepLast) == false)
+ return false;
+ }
+ }
+ return true;
+}
+ /*}}}*/
+// ListParser::NewProvides - Create a Provides element /*{{{*/
+bool pkgCacheListParser::NewProvides(pkgCache::VerIterator &Ver,
+ StringView PkgName,
+ StringView PkgArch,
+ StringView Version,
+ uint8_t const Flags)
+{
+ pkgCache const &Cache = Owner->Cache;
+ Dynamic<StringView> DynPkgName(PkgName);
+ Dynamic<StringView> DynArch(PkgArch);
+ Dynamic<StringView> DynVersion(Version);
+
+ // We do not add self referencing provides
+ if (Ver.ParentPkg().Name() == PkgName && (PkgArch == Ver.ParentPkg().Arch() ||
+ (PkgArch == "all" && strcmp((Cache.StrP + Cache.HeaderP->Architecture), Ver.ParentPkg().Arch()) == 0)) &&
+ (Version.empty() || Version == Ver.VerStr()))
+ return true;
+
+ // Locate the target package
pkgCache::PkgIterator Pkg;
- if (Owner->NewPackage(Pkg,PackageName) == false)
+ Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
+ if (unlikely(Owner->NewPackage(Pkg,PkgName, PkgArch) == false))
return false;
-
+
+ map_stringitem_t idxProvideVersion = 0;
+ if (Version.empty() == false) {
+ idxProvideVersion = StoreString(pkgCacheGenerator::VERSIONNUMBER, Version);
+ if (unlikely(idxProvideVersion == 0))
+ return false;
+ }
+ return Owner->NewProvides(Ver, Pkg, idxProvideVersion, Flags);
+}
+bool pkgCacheGenerator::NewProvides(pkgCache::VerIterator &Ver,
+ pkgCache::PkgIterator &Pkg,
+ map_pointer_t const ProvideVersion,
+ uint8_t const Flags)
+{
+ // Get a structure
+ map_pointer_t const Provides = 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);
+ Prv->Version = Ver.Index();
+ Prv->ProvideVersion = ProvideVersion;
+ Prv->Flags = Flags;
+ Prv->NextPkgProv = Ver->ProvidesList;
+ Ver->ProvidesList = Prv.Index();
+
// Link it to the package
Prv->ParentPkg = Pkg.Index();
Prv->NextProvides = Pkg->ProvidesList;
Pkg->ProvidesList = Prv.Index();
-
+ return true;
+}
+ /*}}}*/
+// ListParser::NewProvidesAllArch - add provides for all architectures /*{{{*/
+bool pkgCacheListParser::NewProvidesAllArch(pkgCache::VerIterator &Ver, StringView Package,
+ StringView Version, uint8_t const Flags) {
+ pkgCache &Cache = Owner->Cache;
+ pkgCache::GrpIterator Grp = Cache.FindGrp(Package);
+ Dynamic<pkgCache::GrpIterator> DynGrp(Grp);
+ Dynamic<StringView> DynPackage(Package);
+ Dynamic<StringView> DynVersion(Version);
+
+ if (Grp.end() == true)
+ return NewProvides(Ver, Package, Cache.NativeArch(), Version, Flags);
+ else
+ {
+ map_stringitem_t idxProvideVersion = 0;
+ if (Version.empty() == false) {
+ idxProvideVersion = StoreString(pkgCacheGenerator::VERSIONNUMBER, Version);
+ if (unlikely(idxProvideVersion == 0))
+ return false;
+ }
+
+ bool const isImplicit = (Flags & pkgCache::Flag::MultiArchImplicit) == pkgCache::Flag::MultiArchImplicit;
+ bool const isArchSpecific = (Flags & pkgCache::Flag::ArchSpecific) == pkgCache::Flag::ArchSpecific;
+ pkgCache::PkgIterator OwnerPkg = Ver.ParentPkg();
+ Dynamic<pkgCache::PkgIterator> DynOwnerPkg(OwnerPkg);
+ pkgCache::PkgIterator Pkg;
+ Dynamic<pkgCache::PkgIterator> DynPkg(Pkg);
+ for (Pkg = Grp.PackageList(); Pkg.end() == false; Pkg = Grp.NextPkg(Pkg))
+ {
+ if (isImplicit && OwnerPkg == Pkg)
+ continue;
+ if (isArchSpecific == false && APT::Configuration::checkArchitecture(OwnerPkg.Arch()) == false)
+ continue;
+ if (Owner->NewProvides(Ver, Pkg, idxProvideVersion, Flags) == false)
+ return false;
+ }
+ }
+ return true;
+}
+ /*}}}*/
+bool pkgCacheListParser::SameVersion(unsigned short const Hash, /*{{{*/
+ pkgCache::VerIterator const &Ver)
+{
+ return Hash == Ver->Hash;
+}
+ /*}}}*/
+// CacheGenerator::SelectReleaseFile - Select the current release file the indexes belong to /*{{{*/
+bool pkgCacheGenerator::SelectReleaseFile(const string &File,const string &Site,
+ unsigned long Flags)
+{
+ if (File.empty() && Site.empty())
+ {
+ CurrentRlsFile = NULL;
+ return true;
+ }
+
+ // Get some space for the structure
+ map_pointer_t const idxFile = AllocateInMap(sizeof(*CurrentRlsFile));
+ if (unlikely(idxFile == 0))
+ return false;
+ CurrentRlsFile = Cache.RlsFileP + idxFile;
+
+ // Fill it in
+ map_stringitem_t const idxFileName = WriteStringInMap(File);
+ map_stringitem_t const idxSite = StoreString(MIXED, Site);
+ if (unlikely(idxFileName == 0 || idxSite == 0))
+ return false;
+ CurrentRlsFile->FileName = idxFileName;
+ CurrentRlsFile->Site = idxSite;
+ CurrentRlsFile->NextFile = Cache.HeaderP->RlsFileList;
+ CurrentRlsFile->Flags = Flags;
+ CurrentRlsFile->ID = Cache.HeaderP->ReleaseFileCount;
+ RlsFileName = File;
+ Cache.HeaderP->RlsFileList = CurrentRlsFile - Cache.RlsFileP;
+ Cache.HeaderP->ReleaseFileCount++;
+
return true;
}
/*}}}*/
// CacheGenerator::SelectFile - Select the current file being parsed /*{{{*/
// ---------------------------------------------------------------------
/* This is used to select which file is to be associated with all newly
- added versions. */
-bool pkgCacheGenerator::SelectFile(string File,unsigned long Flags)
+ added versions. The caller is responsible for setting the IMS fields. */
+bool pkgCacheGenerator::SelectFile(std::string const &File,
+ pkgIndexFile const &Index,
+ std::string const &Architecture,
+ std::string const &Component,
+ unsigned long const Flags)
{
- struct stat Buf;
- if (stat(File.c_str(),&Buf) == -1)
- return _error->Errno("stat","Couldn't stat ",File.c_str());
-
// Get some space for the structure
- CurrentFile = Cache.PkgFileP + Map.Allocate(sizeof(*CurrentFile));
- if (CurrentFile == Cache.PkgFileP)
+ map_pointer_t const idxFile = AllocateInMap(sizeof(*CurrentFile));
+ if (unlikely(idxFile == 0))
return false;
-
+ CurrentFile = Cache.PkgFileP + idxFile;
+
// Fill it in
- CurrentFile->FileName = Map.WriteString(File);
- CurrentFile->Size = Buf.st_size;
- CurrentFile->mtime = Buf.st_mtime;
+ map_stringitem_t const idxFileName = WriteStringInMap(File);
+ if (unlikely(idxFileName == 0))
+ return false;
+ CurrentFile->FileName = idxFileName;
CurrentFile->NextFile = Cache.HeaderP->FileList;
- CurrentFile->Flags = Flags;
CurrentFile->ID = Cache.HeaderP->PackageFileCount;
+ map_stringitem_t const idxIndexType = StoreString(MIXED, Index.GetType()->Label);
+ if (unlikely(idxIndexType == 0))
+ return false;
+ CurrentFile->IndexType = idxIndexType;
+ if (Architecture.empty())
+ CurrentFile->Architecture = 0;
+ else
+ {
+ map_stringitem_t const arch = StoreString(pkgCacheGenerator::MIXED, Architecture);
+ if (unlikely(arch == 0))
+ return false;
+ CurrentFile->Architecture = arch;
+ }
+ map_stringitem_t const component = StoreString(pkgCacheGenerator::MIXED, Component);
+ if (unlikely(component == 0))
+ return false;
+ CurrentFile->Component = component;
+ CurrentFile->Flags = Flags;
+ if (CurrentRlsFile != NULL)
+ CurrentFile->Release = CurrentRlsFile - Cache.RlsFileP;
+ else
+ CurrentFile->Release = 0;
PkgFileName = File;
Cache.HeaderP->FileList = CurrentFile - Cache.PkgFileP;
Cache.HeaderP->PackageFileCount++;
-
- if (CurrentFile->FileName == 0)
- return false;
-
- Progress.SubProgress(Buf.st_size);
+
+ if (Progress != 0)
+ Progress->SubProgress(Index.Size());
return true;
}
/*}}}*/
// ---------------------------------------------------------------------
/* This is used to create handles to strings. Given the same text it
always returns the same number */
-unsigned long pkgCacheGenerator::WriteUniqString(const char *S,
+map_stringitem_t pkgCacheGenerator::StoreString(enum StringType const type, const char *S,
unsigned int Size)
{
- // Search for an insertion point
- pkgCache::StringItem *I = Cache.StringItemP + Cache.HeaderP->StringList;
- int Res = 1;
- unsigned long *Last = &Cache.HeaderP->StringList;
- for (; I != Cache.StringItemP; Last = &I->NextItem,
- I = Cache.StringItemP + I->NextItem)
- {
- Res = stringcmp(S,S+Size,Cache.StrP + I->String);
- if (Res >= 0)
- break;
+ auto strings = &strMixed;
+ switch(type) {
+ case MIXED: strings = &strMixed; break;
+ case PKGNAME: strings = &strPkgNames; break;
+ case VERSIONNUMBER: strings = &strVersions; break;
+ case SECTION: strings = &strSections; break;
+ default: _error->Fatal("Unknown enum type used for string storage of '%.*s'", Size, S); return 0;
}
-
- // Match
- if (Res == 0)
- return I->String;
-
- // Get a structure
- unsigned long Item = Map.Allocate(sizeof(pkgCache::StringItem));
- if (Item == 0)
- return 0;
- // 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;
-
- return ItemP->String;
+ auto const item = strings->find({S, Size, nullptr, 0});
+ if (item != strings->end())
+ return item->item;
+
+ map_stringitem_t const idxString = WriteStringInMap(S,Size);
+ strings->insert({nullptr, Size, this, idxString});
+ return idxString;
}
/*}}}*/
-
-// SrcCacheCheck - Check if the source package cache is uptodate /*{{{*/
+// CheckValidity - Check that a cache is up-to-date /*{{{*/
// ---------------------------------------------------------------------
-/* The source cache is checked against the source list and the files
- on disk, any difference results in a false. */
-bool pkgSrcCacheCheck(pkgSourceList &List)
+/* 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. */
+class APT_HIDDEN ScopedErrorRevert {
+public:
+ ScopedErrorRevert() { _error->PushToStack(); }
+ ~ScopedErrorRevert() { _error->RevertToStack(); }
+};
+static bool CheckValidity(const string &CacheFile,
+ pkgSourceList &List,
+ FileIterator const Start,
+ FileIterator const End,
+ MMap **OutMap = 0,
+ pkgCache **OutCache = 0)
{
- if (_error->PendingError() == true)
+ ScopedErrorRevert ser;
+ 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 " << CacheFile << " doesn't exist" << std::endl;
return false;
+ }
- string CacheFile = _config->FindDir("Dir::Cache::srcpkgcache");
- string ListDir = _config->FindDir("Dir::State::lists");
-
- // Count the number of missing files
- int Missing = 0;
- for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); I++)
+ if (List.GetLastModifiedTime() > GetModificationTime(CacheFile))
{
- string File = ListDir + URItoFileName(I->PackagesURI());
- struct stat Buf;
- if (stat(File.c_str(),&Buf) != 0)
- {
- _error->WarningE("stat","Couldn't stat source package list '%s' (%s)",
- I->PackagesInfo().c_str(),File.c_str());
- Missing++;
- }
- }
-
- // Open the source package cache
- if (FileExists(CacheFile) == false)
+ if (Debug == true)
+ std::clog << "sources.list is newer than the cache" << std::endl;
return false;
-
+ }
+
+ // Map it
FileFd CacheF(CacheFile,FileFd::ReadOnly);
- if (_error->PendingError() == true)
+ std::unique_ptr<MMap> Map(new MMap(CacheF,0));
+ if (unlikely(Map->validData()) == false)
+ return false;
+ std::unique_ptr<pkgCache> CacheP(new pkgCache(Map.get()));
+ pkgCache &Cache = *CacheP.get();
+ if (_error->PendingError() || Map->Size() == 0)
{
- _error->Discard();
+ if (Debug == true)
+ std::clog << "Errors are pending or Map is empty() for " << CacheFile << std::endl;
return false;
}
-
- MMap Map(CacheF,MMap::Public | MMap::ReadOnly);
- if (_error->PendingError() == true || Map.Size() == 0)
+
+ std::unique_ptr<bool[]> RlsVisited(new bool[Cache.HeaderP->ReleaseFileCount]);
+ memset(RlsVisited.get(),0,sizeof(RlsVisited[0])*Cache.HeaderP->ReleaseFileCount);
+ std::vector<pkgIndexFile *> Files;
+ for (pkgSourceList::const_iterator i = List.begin(); i != List.end(); ++i)
{
- _error->Discard();
- return false;
+ if (Debug == true)
+ std::clog << "Checking RlsFile " << (*i)->Describe() << ": ";
+ pkgCache::RlsFileIterator const RlsFile = (*i)->FindInCache(Cache, true);
+ if (RlsFile.end() == true)
+ {
+ if (Debug == true)
+ std::clog << "FindInCache returned end-Pointer" << std::endl;
+ return false;
+ }
+
+ RlsVisited[RlsFile->ID] = true;
+ if (Debug == true)
+ std::clog << "with ID " << RlsFile->ID << " is valid" << std::endl;
+
+ std::vector <pkgIndexFile *> const * const Indexes = (*i)->GetIndexFiles();
+ std::copy_if(Indexes->begin(), Indexes->end(), std::back_inserter(Files),
+ [](pkgIndexFile const * const I) { return I->HasPackages(); });
}
-
- pkgCache Cache(Map);
+ for (unsigned I = 0; I != Cache.HeaderP->ReleaseFileCount; ++I)
+ if (RlsVisited[I] == false)
+ {
+ if (Debug == true)
+ std::clog << "RlsFile with ID" << I << " wasn't visited" << std::endl;
+ return false;
+ }
+
+ std::copy(Start, End, std::back_inserter(Files));
+
+ /* Now we check every index file, see if it is in the cache,
+ verify the IMS data and check that it is on the disk too.. */
+ std::unique_ptr<bool[]> Visited(new bool[Cache.HeaderP->PackageFileCount]);
+ memset(Visited.get(),0,sizeof(Visited[0])*Cache.HeaderP->PackageFileCount);
+ for (std::vector<pkgIndexFile *>::const_reverse_iterator PkgFile = Files.rbegin(); PkgFile != Files.rend(); ++PkgFile)
+ {
+ if (Debug == true)
+ std::clog << "Checking PkgFile " << (*PkgFile)->Describe() << ": ";
+ if ((*PkgFile)->Exists() == false)
+ {
+ if (Debug == true)
+ std::clog << "file doesn't exist" << std::endl;
+ continue;
+ }
+
+ // FindInCache is also expected to do an IMS check.
+ pkgCache::PkgFileIterator File = (*PkgFile)->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 << "PkgFile with ID" << I << " wasn't visited" << std::endl;
+ return false;
+ }
+
if (_error->PendingError() == true)
{
- _error->Discard();
+ if (Debug == true)
+ {
+ std::clog << "Validity failed because of pending errors:" << std::endl;
+ _error->DumpErrors(std::clog, GlobalError::DEBUG, false);
+ }
return false;
}
- // They are certianly out of sync
- if (Cache.Head().PackageFileCount != List.size() - Missing)
- return false;
-
- for (pkgCache::PkgFileIterator F(Cache); F.end() == false; F++)
+ if (OutMap != 0)
+ *OutMap = Map.release();
+ if (OutCache != 0)
+ *OutCache = CacheP.release();
+ return true;
+}
+ /*}}}*/
+// ComputeSize - Compute the total size of a bunch of files /*{{{*/
+// ---------------------------------------------------------------------
+/* Size is kind of an abstract notion that is only used for the progress
+ meter */
+static map_filesize_t ComputeSize(pkgSourceList const * const List, FileIterator Start,FileIterator End)
+{
+ map_filesize_t TotalSize = 0;
+ if (List != NULL)
{
- // Search for a match in the source list
- bool Bad = true;
- for (pkgSourceList::const_iterator I = List.begin();
- I != List.end(); I++)
+ for (pkgSourceList::const_iterator i = List->begin(); i != List->end(); ++i)
{
- string File = ListDir + URItoFileName(I->PackagesURI());
- if (F.FileName() == File)
+ std::vector <pkgIndexFile *> *Indexes = (*i)->GetIndexFiles();
+ for (std::vector<pkgIndexFile *>::const_iterator j = Indexes->begin(); j != Indexes->end(); ++j)
+ if ((*j)->HasPackages() == true)
+ TotalSize += (*j)->Size();
+ }
+ }
+
+ for (; Start < End; ++Start)
+ {
+ if ((*Start)->HasPackages() == false)
+ continue;
+ TotalSize += (*Start)->Size();
+ }
+ return TotalSize;
+}
+ /*}}}*/
+// BuildCache - Merge the list of index files into the cache /*{{{*/
+static bool BuildCache(pkgCacheGenerator &Gen,
+ OpProgress * const Progress,
+ map_filesize_t &CurrentSize,map_filesize_t TotalSize,
+ pkgSourceList const * const List,
+ FileIterator const Start, FileIterator const End)
+{
+ bool mergeFailure = false;
+
+ auto const indexFileMerge = [&](pkgIndexFile * const I) {
+ if (I->HasPackages() == false || mergeFailure)
+ return;
+
+ if (I->Exists() == false)
+ return;
+
+ if (I->FindInCache(Gen.GetCache()).end() == false)
+ {
+ _error->Warning("Duplicate sources.list entry %s",
+ I->Describe().c_str());
+ return;
+ }
+
+ map_filesize_t const Size = I->Size();
+ if (Progress != NULL)
+ Progress->OverallProgress(CurrentSize, TotalSize, Size, _("Reading package lists"));
+ CurrentSize += Size;
+
+ if (I->Merge(Gen,Progress) == false)
+ mergeFailure = true;
+ };
+
+ if (List != NULL)
+ {
+ for (pkgSourceList::const_iterator i = List->begin(); i != List->end(); ++i)
+ {
+ if ((*i)->FindInCache(Gen.GetCache(), false).end() == false)
{
- Bad = false;
- break;
+ _error->Warning("Duplicate sources.list entry %s",
+ (*i)->Describe().c_str());
+ continue;
}
+
+ if ((*i)->Merge(Gen, Progress) == false)
+ return false;
+
+ std::vector <pkgIndexFile *> *Indexes = (*i)->GetIndexFiles();
+ if (Indexes != NULL)
+ std::for_each(Indexes->begin(), Indexes->end(), indexFileMerge);
+ if (mergeFailure)
+ return false;
}
-
- // Check if the file matches what was cached
- Bad |= !F.IsOk();
- if (Bad == true)
+ }
+
+ if (Start != End)
+ {
+ Gen.SelectReleaseFile("", "");
+ std::for_each(Start, End, indexFileMerge);
+ if (mergeFailure)
return false;
}
-
return true;
}
/*}}}*/
-// PkgCacheCheck - Check if the package cache is uptodate /*{{{*/
+// CacheGenerator::MakeStatusCache - Construct the status cache /*{{{*/
// ---------------------------------------------------------------------
-/* This does a simple check of all files used to compose the cache */
-bool pkgPkgCacheCheck(string CacheFile)
+/* This makes sure that the status cache (the cache that has all
+ index files from the sources list and all local ones) is ready
+ to be mmaped. If OutMap is not zero then a MMap object representing
+ 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. */
+static DynamicMMap* CreateDynamicMMap(FileFd * const CacheF, unsigned long Flags)
{
- if (_error->PendingError() == true)
+ map_filesize_t const MapStart = _config->FindI("APT::Cache-Start", 24*1024*1024);
+ map_filesize_t const MapGrow = _config->FindI("APT::Cache-Grow", 1*1024*1024);
+ map_filesize_t 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);
+}
+static bool writeBackMMapToFile(pkgCacheGenerator * const Gen, DynamicMMap * const Map,
+ std::string const &FileName)
+{
+ FileFd SCacheF(FileName, FileFd::WriteAtomic);
+ if (SCacheF.IsOpen() == false || SCacheF.Failed())
return false;
-
- // Open the source package cache
- if (FileExists(CacheFile) == false)
+
+ fchmod(SCacheF.Fd(),0644);
+
+ // Write out the main data
+ if (SCacheF.Write(Map->Data(),Map->Size()) == false)
+ return _error->Error(_("IO Error saving source cache"));
+
+ // Write out the proper header
+ Gen->GetCache().HeaderP->Dirty = false;
+ Gen->GetCache().HeaderP->CacheFileSize = Gen->GetCache().CacheHash();
+ if (SCacheF.Seek(0) == false ||
+ SCacheF.Write(Map->Data(),sizeof(*Gen->GetCache().HeaderP)) == false)
+ return _error->Error(_("IO Error saving source cache"));
+ Gen->GetCache().HeaderP->Dirty = true;
+ return true;
+}
+static bool loadBackMMapFromFile(std::unique_ptr<pkgCacheGenerator> &Gen,
+ std::unique_ptr<DynamicMMap> &Map, OpProgress * const Progress, std::string const &FileName)
+{
+ Map.reset(CreateDynamicMMap(NULL, 0));
+ if (unlikely(Map->validData()) == false)
return false;
-
- FileFd CacheF(CacheFile,FileFd::ReadOnly);
- if (_error->PendingError() == true)
- {
- _error->Discard();
+ FileFd CacheF(FileName, FileFd::ReadOnly);
+ if (CacheF.IsOpen() == false || CacheF.Failed())
return false;
+ _error->PushToStack();
+ map_pointer_t const alloc = Map->RawAllocate(CacheF.Size());
+ bool const newError = _error->PendingError();
+ _error->MergeWithStack();
+ if (alloc == 0 && newError)
+ return false;
+ if (CacheF.Read((unsigned char *)Map->Data() + alloc, CacheF.Size()) == false)
+ return false;
+ Gen.reset(new pkgCacheGenerator(Map.get(),Progress));
+ return Gen->Start();
+}
+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)
+{
+ return pkgCacheGenerator::MakeStatusCache(List, Progress, OutMap, nullptr, true);
+}
+bool pkgCacheGenerator::MakeStatusCache(pkgSourceList &List,OpProgress *Progress,
+ MMap **OutMap,pkgCache **OutCache, bool)
+{
+ // FIXME: deprecate the ignored AllowMem parameter
+ bool const Debug = _config->FindB("Debug::pkgCacheGen", false);
+
+ std::vector<pkgIndexFile *> Files;
+ if (_system->AddStatusFiles(Files) == false)
+ return false;
+
+ // Decide if we can write to the files..
+ 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));
}
-
- MMap Map(CacheF,MMap::Public | MMap::ReadOnly);
- if (_error->PendingError() == true || Map.Size() == 0)
+
+ if (Progress != NULL)
+ Progress->OverallProgress(0,1,1,_("Reading package lists"));
+
+ bool pkgcache_fine = false;
+ bool srcpkgcache_fine = false;
+ bool volatile_fine = List.GetVolatileFiles().empty();
+
+ if (CheckValidity(CacheFile, List, Files.begin(), Files.end(), volatile_fine ? OutMap : NULL,
+ volatile_fine ? OutCache : NULL) == true)
{
- _error->Discard();
- return false;
+ if (Debug == true)
+ std::clog << "pkgcache.bin is valid - no need to build any cache" << std::endl;
+ pkgcache_fine = true;
+ srcpkgcache_fine = true;
}
-
- pkgCache Cache(Map);
- if (_error->PendingError() == true)
+ if (pkgcache_fine == false)
{
- _error->Discard();
- return false;
+ if (CheckValidity(SrcCacheFile, List, Files.end(), Files.end()) == true)
+ {
+ if (Debug == true)
+ std::clog << "srcpkgcache.bin is valid - it can be reused" << std::endl;
+ srcpkgcache_fine = true;
+ }
}
- // Status files that must be in the cache
- string Status[3];
- Status[0] = _config->FindDir("Dir::State::xstatus");
- Status[1]= _config->FindDir("Dir::State::userstatus");
- Status[2] = _config->FindDir("Dir::State::status");
-
- // Cheack each file
- for (pkgCache::PkgFileIterator F(Cache); F.end() == false; F++)
+ if (volatile_fine == true && srcpkgcache_fine == true && pkgcache_fine == true)
+ {
+ if (Progress != NULL)
+ Progress->OverallProgress(1,1,1,_("Reading package lists"));
+ return true;
+ }
+
+ bool Writeable = false;
+ if (srcpkgcache_fine == false || pkgcache_fine == false)
+ {
+ if (CacheFile.empty() == false)
+ Writeable = access(flNotFile(CacheFile).c_str(),W_OK) == 0;
+ 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;
+ }
+
+ // At this point we know we need to construct something, so get storage ready
+ std::unique_ptr<DynamicMMap> Map(CreateDynamicMMap(NULL, 0));
+ if (unlikely(Map->validData()) == false)
+ return false;
+ if (Debug == true)
+ std::clog << "Open memory Map (not filebased)" << std::endl;
+
+ std::unique_ptr<pkgCacheGenerator> Gen{nullptr};
+ map_filesize_t CurrentSize = 0;
+ std::vector<pkgIndexFile*> VolatileFiles = List.GetVolatileFiles();
+ map_filesize_t TotalSize = ComputeSize(NULL, VolatileFiles.begin(), VolatileFiles.end());
+ if (srcpkgcache_fine == true && pkgcache_fine == false)
{
- if (F.IsOk() == false)
+ if (Debug == true)
+ std::clog << "srcpkgcache.bin was valid - populate MMap with it" << std::endl;
+ if (loadBackMMapFromFile(Gen, Map, Progress, SrcCacheFile) == false)
return false;
-
- // See if this is one of the status files
- for (int I = 0; I != 3; I++)
- if (F.FileName() == Status[I])
- Status[I] = string();
+ srcpkgcache_fine = true;
+ TotalSize += ComputeSize(NULL, Files.begin(), Files.end());
}
-
- // Make sure all the status files are loaded.
- for (int I = 0; I != 3; I++)
+ else if (srcpkgcache_fine == false)
{
- if (Status[I].empty() == false && FileExists(Status[I]) == true)
+ if (Debug == true)
+ std::clog << "srcpkgcache.bin is NOT valid - rebuild" << std::endl;
+ Gen.reset(new pkgCacheGenerator(Map.get(),Progress));
+ if (Gen->Start() == false)
return false;
- }
-
- return true;
-}
- /*}}}*/
-// AddSourcesSize - Add the size of the status files /*{{{*/
-// ---------------------------------------------------------------------
-/* This adds the size of all the status files to the size counter */
-static bool pkgAddSourcesSize(unsigned long &TotalSize)
-{
- // Grab the file names
- string xstatus = _config->FindDir("Dir::State::xstatus");
- string userstatus = _config->FindDir("Dir::State::userstatus");
- string status = _config->FindDir("Dir::State::status");
-
- // Grab the sizes
- struct stat Buf;
- if (stat(xstatus.c_str(),&Buf) == 0)
- TotalSize += Buf.st_size;
- if (stat(userstatus.c_str(),&Buf) == 0)
- TotalSize += Buf.st_size;
- if (stat(status.c_str(),&Buf) != 0)
- return _error->Errno("stat","Couldn't stat the status file %s",status.c_str());
- TotalSize += Buf.st_size;
-
- return true;
-}
- /*}}}*/
-// MergeStatus - Add the status files to the cache /*{{{*/
-// ---------------------------------------------------------------------
-/* This adds the status files to the map */
-static bool pkgMergeStatus(OpProgress &Progress,pkgCacheGenerator &Gen,
- unsigned long &CurrentSize,unsigned long TotalSize)
-{
- // Grab the file names
- string Status[3];
- Status[0] = _config->FindDir("Dir::State::xstatus");
- Status[1]= _config->FindDir("Dir::State::userstatus");
- Status[2] = _config->FindDir("Dir::State::status");
-
- for (int I = 0; I != 3; I++)
+
+ TotalSize += ComputeSize(&List, Files.begin(),Files.end());
+ if (BuildCache(*Gen, Progress, CurrentSize, TotalSize, &List,
+ Files.end(),Files.end()) == false)
+ return false;
+
+ if (Writeable == true && SrcCacheFile.empty() == false)
+ if (writeBackMMapToFile(Gen.get(), Map.get(), SrcCacheFile) == false)
+ return false;
+ }
+
+ if (pkgcache_fine == false)
{
- // Check if the file exists and it is not the primary status file.
- string File = Status[I];
- if (I != 2 && FileExists(File) == false)
- continue;
-
- FileFd Pkg(File,FileFd::ReadOnly);
- debListParser Parser(Pkg);
- Progress.OverallProgress(CurrentSize,TotalSize,Pkg.Size(),"Reading Package Lists");
- if (_error->PendingError() == true)
- return _error->Error("Problem opening %s",File.c_str());
- CurrentSize += Pkg.Size();
-
- Progress.SubProgress(0,"Local Package State - " + flNotDir(File));
- if (Gen.SelectFile(File,pkgCache::Flag::NotSource) == false)
- return _error->Error("Problem with SelectFile %s",File.c_str());
-
- if (Gen.MergeList(Parser) == false)
- return _error->Error("Problem with MergeList %s",File.c_str());
- Progress.Progress(Pkg.Size());
+ if (Debug == true)
+ std::clog << "Building status cache in pkgcache.bin now" << std::endl;
+ if (BuildCache(*Gen, Progress, CurrentSize, TotalSize, NULL,
+ Files.begin(), Files.end()) == false)
+ return false;
+
+ if (Writeable == true && CacheFile.empty() == false)
+ if (writeBackMMapToFile(Gen.get(), Map.get(), CacheFile) == false)
+ return false;
}
-
+
+ if (Debug == true)
+ std::clog << "Caches done. " << (volatile_fine ? "No volatile files, so we are done here." : "Now bring in the volatile files") << std::endl;
+
+ if (volatile_fine == false)
+ {
+ if (Gen == nullptr)
+ {
+ if (Debug == true)
+ std::clog << "Populate new MMap with cachefile contents" << std::endl;
+ if (loadBackMMapFromFile(Gen, Map, Progress, CacheFile) == false)
+ return false;
+ }
+
+ Files = List.GetVolatileFiles();
+ if (BuildCache(*Gen, Progress, CurrentSize, TotalSize, NULL,
+ Files.begin(), Files.end()) == false)
+ return false;
+ }
+
+ if (OutMap != nullptr)
+ *OutMap = Map.release();
+
+ if (Debug == true)
+ std::clog << "Everything is ready for shipping" << std::endl;
return true;
}
/*}}}*/
-// MakeStatusCache - Generates a cache that includes the status files /*{{{*/
-// ---------------------------------------------------------------------
-/* This copies the package source cache and then merges the status and
- xstatus files into it. */
-bool pkgMakeStatusCache(pkgSourceList &List,OpProgress &Progress)
+// CacheGenerator::MakeOnlyStatusCache - Build only a status files cache/*{{{*/
+class APT_HIDDEN ScopedErrorMerge {
+public:
+ ScopedErrorMerge() { _error->PushToStack(); }
+ ~ScopedErrorMerge() { _error->MergeWithStack(); }
+};
+bool pkgMakeOnlyStatusCache(OpProgress &Progress,DynamicMMap **OutMap)
+ { return pkgCacheGenerator::MakeOnlyStatusCache(&Progress, OutMap); }
+bool pkgCacheGenerator::MakeOnlyStatusCache(OpProgress *Progress,DynamicMMap **OutMap)
{
- Progress.OverallProgress(0,1,1,"Reading Package Lists");
-
- string CacheFile = _config->FindDir("Dir::Cache::pkgcache");
- bool SrcOk = pkgSrcCacheCheck(List);
- bool PkgOk = SrcOk && pkgPkgCacheCheck(CacheFile);
-
- // Rebuild the source and package caches
- if (SrcOk == false)
- {
- string SCacheFile = _config->FindDir("Dir::Cache::srcpkgcache");
- string ListDir = _config->FindDir("Dir::State::lists");
-
- FileFd SCacheF(SCacheFile,FileFd::WriteEmpty);
- FileFd CacheF(CacheFile,FileFd::WriteEmpty);
- DynamicMMap Map(CacheF,MMap::Public);
- if (_error->PendingError() == true)
- return false;
-
- pkgCacheGenerator Gen(Map,Progress);
-
- // Prepare the progress indicator
- unsigned long TotalSize = 0;
- struct stat Buf;
- for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); I++)
- {
- string File = ListDir + URItoFileName(I->PackagesURI());
- if (stat(File.c_str(),&Buf) != 0)
- continue;
- TotalSize += Buf.st_size;
- }
-
- if (pkgAddSourcesSize(TotalSize) == false)
- return false;
-
- // Generate the pkg source cache
- unsigned long CurrentSize = 0;
- for (pkgSourceList::const_iterator I = List.begin(); I != List.end(); I++)
- {
- string File = ListDir + URItoFileName(I->PackagesURI());
+ std::vector<pkgIndexFile *> Files;
+ if (_system->AddStatusFiles(Files) == false)
+ return false;
- if (stat(File.c_str(),&Buf) != 0)
- continue;
-
- FileFd Pkg(File,FileFd::ReadOnly);
- debListParser Parser(Pkg);
- Progress.OverallProgress(CurrentSize,TotalSize,Pkg.Size(),"Reading Package Lists");
- if (_error->PendingError() == true)
- return _error->Error("Problem opening %s",File.c_str());
- CurrentSize += Pkg.Size();
-
- Progress.SubProgress(0,I->PackagesInfo());
- if (Gen.SelectFile(File) == false)
- return _error->Error("Problem with SelectFile %s",File.c_str());
-
- if (Gen.MergeList(Parser) == false)
- return _error->Error("Problem with MergeList %s",File.c_str());
- }
-
- // Write the src cache
- Gen.GetCache().HeaderP->Dirty = false;
- if (SCacheF.Write(Map.Data(),Map.Size()) == false)
- return _error->Error("IO Error saving source cache");
- Gen.GetCache().HeaderP->Dirty = true;
-
- // Merge in the source caches
- return pkgMergeStatus(Progress,Gen,CurrentSize,TotalSize);
- }
-
- if (PkgOk == true)
- {
- Progress.OverallProgress(1,1,1,"Reading Package Lists");
- return true;
- }
-
- // We use the source cache to generate the package cache
- string SCacheFile = _config->FindDir("Dir::Cache::srcpkgcache");
+ ScopedErrorMerge sem;
+ std::unique_ptr<DynamicMMap> Map(CreateDynamicMMap(NULL, 0));
+ if (unlikely(Map->validData()) == false)
+ return false;
+ map_filesize_t CurrentSize = 0;
+ map_filesize_t TotalSize = 0;
+ TotalSize = ComputeSize(NULL, Files.begin(), Files.end());
- FileFd SCacheF(SCacheFile,FileFd::ReadOnly);
- FileFd CacheF(CacheFile,FileFd::WriteEmpty);
- DynamicMMap Map(CacheF,MMap::Public);
- if (_error->PendingError() == true)
+ // Build the status cache
+ if (Progress != NULL)
+ Progress->OverallProgress(0,1,1,_("Reading package lists"));
+ pkgCacheGenerator Gen(Map.get(),Progress);
+ if (Gen.Start() == false || _error->PendingError() == true)
return false;
-
- // Preload the map with the source cache
- if (SCacheF.Read((unsigned char *)Map.Data() + Map.RawAllocate(SCacheF.Size()),
- SCacheF.Size()) == false)
+ if (BuildCache(Gen,Progress,CurrentSize,TotalSize, NULL,
+ Files.begin(), Files.end()) == false)
return false;
-
- pkgCacheGenerator Gen(Map,Progress);
+
+ if (_error->PendingError() == true)
+ return false;
+ *OutMap = Map.release();
- // Compute the progress
- unsigned long TotalSize = 0;
- if (pkgAddSourcesSize(TotalSize) == false)
+ 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;
-
- unsigned long CurrentSize = 0;
- return pkgMergeStatus(Progress,Gen,CurrentSize,TotalSize);
+ for (; Desc.end() == false; ++Desc)
+ if (Desc.LanguageCode() == CurLang)
+ return true;
+ return false;
}
/*}}}*/
+
+pkgCacheListParser::pkgCacheListParser() : Owner(NULL), OldDepLast(NULL), d(NULL) {}
+pkgCacheListParser::~pkgCacheListParser() {}
projects / apt.git / blobdiff