X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/4dde2b4285fc6288e44e915a0d7bc0faac114a2e..ef00bd7af5b2bc0625df58482eacb4c2873c3647:/cmdline/apt-cache.cc?ds=sidebyside diff --git a/cmdline/apt-cache.cc b/cmdline/apt-cache.cc index 1414617eb..481833084 100644 --- a/cmdline/apt-cache.cc +++ b/cmdline/apt-cache.cc @@ -43,6 +43,11 @@ #include #include +#include +#include +#include +#include +#include #include #include @@ -64,141 +69,6 @@ using namespace std; -// LocalitySort - Sort a version list by package file locality /*{{{*/ -// --------------------------------------------------------------------- -/* */ -static int LocalityCompare(const void *a, const void *b) -{ - pkgCache::VerFile *A = *(pkgCache::VerFile **)a; - pkgCache::VerFile *B = *(pkgCache::VerFile **)b; - - if (A == 0 && B == 0) - return 0; - if (A == 0) - return 1; - if (B == 0) - return -1; - - if (A->File == B->File) - return A->Offset - B->Offset; - return A->File - B->File; -} - -static void LocalitySort(pkgCache::VerFile **begin, - unsigned long Count,size_t Size) -{ - qsort(begin,Count,Size,LocalityCompare); -} - -static void LocalitySort(pkgCache::DescFile **begin, - unsigned long Count,size_t Size) -{ - qsort(begin,Count,Size,LocalityCompare); -} - /*}}}*/ -// UnMet - Show unmet dependencies /*{{{*/ -// --------------------------------------------------------------------- -/* */ -static bool ShowUnMet(pkgCache::VerIterator const &V, bool const Important) -{ - bool Header = false; - for (pkgCache::DepIterator D = V.DependsList(); D.end() == false;) - { - // Collect or groups - pkgCache::DepIterator Start; - pkgCache::DepIterator End; - D.GlobOr(Start,End); - - // Important deps only - if (Important == true) - if (End->Type != pkgCache::Dep::PreDepends && - End->Type != pkgCache::Dep::Depends) - continue; - - // Skip conflicts and replaces - if (End.IsNegative() == true) - continue; - - // Verify the or group - bool OK = false; - pkgCache::DepIterator RealStart = Start; - do - { - // See if this dep is Ok - pkgCache::Version **VList = Start.AllTargets(); - if (*VList != 0) - { - OK = true; - delete [] VList; - break; - } - delete [] VList; - - if (Start == End) - break; - ++Start; - } - while (1); - - // The group is OK - if (OK == true) - continue; - - // Oops, it failed.. - if (Header == false) - ioprintf(cout,_("Package %s version %s has an unmet dep:\n"), - V.ParentPkg().FullName(true).c_str(),V.VerStr()); - Header = true; - - // Print out the dep type - cout << " " << End.DepType() << ": "; - - // Show the group - Start = RealStart; - do - { - cout << Start.TargetPkg().FullName(true); - if (Start.TargetVer() != 0) - cout << " (" << Start.CompType() << " " << Start.TargetVer() << - ")"; - if (Start == End) - break; - cout << " | "; - ++Start; - } - while (1); - - cout << endl; - } - return true; -} -static bool UnMet(CommandLine &CmdL) -{ - bool const Important = _config->FindB("APT::Cache::Important",false); - - pkgCacheFile CacheFile; - if (unlikely(CacheFile.GetPkgCache() == NULL)) - return false; - - if (CmdL.FileSize() <= 1) - { - for (pkgCache::PkgIterator P = CacheFile.GetPkgCache()->PkgBegin(); P.end() == false; ++P) - for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V) - if (ShowUnMet(V, Important) == false) - return false; - } - else - { - CacheSetHelperVirtuals helper(true, GlobalError::NOTICE); - APT::VersionList verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, - APT::VersionList::CANDIDATE, helper); - for (APT::VersionList::iterator V = verset.begin(); V != verset.end(); ++V) - if (ShowUnMet(V, Important) == false) - return false; - } - return true; -} - /*}}}*/ // DumpPackage - Show a dump of a package record /*{{{*/ // --------------------------------------------------------------------- /* */ @@ -253,24 +123,74 @@ static bool DumpPackage(CommandLine &CmdL) { cout << Cur.VerStr() << " - "; for (pkgCache::PrvIterator Prv = Cur.ProvidesList(); Prv.end() != true; ++Prv) - cout << Prv.ParentPkg().FullName(true) << " "; + cout << Prv.ParentPkg().FullName(true) << " (= " << (Prv->ProvideVersion == 0 ? "" : Prv.ProvideVersion()) << ") "; cout << endl; } cout << "Reverse Provides: " << endl; for (pkgCache::PrvIterator Prv = Pkg.ProvidesList(); Prv.end() != true; ++Prv) - cout << Prv.OwnerPkg().FullName(true) << " " << Prv.OwnerVer().VerStr() << endl; + cout << Prv.OwnerPkg().FullName(true) << " " << Prv.OwnerVer().VerStr() << " (= " << (Prv->ProvideVersion == 0 ? "" : Prv.ProvideVersion()) << ")"<< endl; } return true; } /*}}}*/ +// ShowHashTableStats - Show stats about a hashtable /*{{{*/ +// --------------------------------------------------------------------- +/* */ +static map_pointer_t PackageNext(pkgCache::Package const * const P) { return P->NextPackage; } +static map_pointer_t GroupNext(pkgCache::Group const * const G) { return G->Next; } +template +static void ShowHashTableStats(std::string Type, + T *StartP, + map_pointer_t *Hashtable, + unsigned long Size, + map_pointer_t(*Next)(T const * const)) +{ + // hashtable stats for the HashTable + unsigned long NumBuckets = Size; + unsigned long UsedBuckets = 0; + unsigned long UnusedBuckets = 0; + unsigned long LongestBucket = 0; + unsigned long ShortestBucket = NumBuckets; + unsigned long Entries = 0; + for (unsigned int i=0; i < NumBuckets; ++i) + { + T *P = StartP + Hashtable[i]; + if(P == 0 || P == StartP) + { + ++UnusedBuckets; + continue; + } + ++UsedBuckets; + unsigned long ThisBucketSize = 0; + for (; P != StartP; P = StartP + Next(P)) + ++ThisBucketSize; + Entries += ThisBucketSize; + LongestBucket = std::max(ThisBucketSize, LongestBucket); + ShortestBucket = std::min(ThisBucketSize, ShortestBucket); + } + cout << "Total buckets in " << Type << ": " << NumBuckets << std::endl; + cout << " Unused: " << UnusedBuckets << std::endl; + cout << " Used: " << UsedBuckets << std::endl; + cout << " Utilization: " << 100.0 * UsedBuckets/NumBuckets << "%" << std::endl; + cout << " Average entries: " << Entries/(double)UsedBuckets << std::endl; + cout << " Longest: " << LongestBucket << std::endl; + cout << " Shortest: " << ShortestBucket << std::endl; +} + /*}}}*/ // Stats - Dump some nice statistics /*{{{*/ // --------------------------------------------------------------------- /* */ -static bool Stats(CommandLine &) +static bool Stats(CommandLine &CmdL) { + if (CmdL.FileSize() > 1) { + _error->Error(_("apt-cache stats does not take any arguments")); + return false; + } + pkgCacheFile CacheFile; pkgCache *Cache = CacheFile.GetPkgCache(); + if (unlikely(Cache == NULL)) return false; @@ -321,59 +241,104 @@ static bool Stats(CommandLine &) cout << _(" Single virtual packages: ") << DVirt << endl; cout << _(" Mixed virtual packages: ") << NVirt << endl; cout << _(" Missing: ") << Missing << endl; - + cout << _("Total distinct versions: ") << Cache->Head().VersionCount << " (" << SizeToStr(Cache->Head().VersionCount*Cache->Head().VersionSz) << ')' << endl; cout << _("Total distinct descriptions: ") << Cache->Head().DescriptionCount << " (" << SizeToStr(Cache->Head().DescriptionCount*Cache->Head().DescriptionSz) << ')' << endl; - cout << _("Total dependencies: ") << Cache->Head().DependsCount << " (" << - SizeToStr(Cache->Head().DependsCount*Cache->Head().DependencySz) << ')' << endl; - + cout << _("Total dependencies: ") << Cache->Head().DependsCount << "/" << Cache->Head().DependsDataCount << " (" << + SizeToStr((Cache->Head().DependsCount*Cache->Head().DependencySz) + + (Cache->Head().DependsDataCount*Cache->Head().DependencyDataSz)) << ')' << endl; cout << _("Total ver/file relations: ") << Cache->Head().VerFileCount << " (" << SizeToStr(Cache->Head().VerFileCount*Cache->Head().VerFileSz) << ')' << endl; cout << _("Total Desc/File relations: ") << Cache->Head().DescFileCount << " (" << SizeToStr(Cache->Head().DescFileCount*Cache->Head().DescFileSz) << ')' << endl; cout << _("Total Provides mappings: ") << Cache->Head().ProvidesCount << " (" << SizeToStr(Cache->Head().ProvidesCount*Cache->Head().ProvidesSz) << ')' << endl; - - // String list stats - unsigned long Size = 0; - unsigned long Count = 0; - for (pkgCache::StringItem *I = Cache->StringItemP + Cache->Head().StringList; - I!= Cache->StringItemP; I = Cache->StringItemP + I->NextItem) - { - Count++; - Size += strlen(Cache->StrP + I->String) + 1; - } - cout << _("Total globbed strings: ") << Count << " (" << SizeToStr(Size) << ')' << endl; - unsigned long DepVerSize = 0; + // String list stats + std::set stritems; + for (pkgCache::GrpIterator G = Cache->GrpBegin(); G.end() == false; ++G) + stritems.insert(G->Name); for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P) { + stritems.insert(P->Arch); for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V) { + if (V->VerStr != 0) + stritems.insert(V->VerStr); + if (V->Section != 0) + stritems.insert(V->Section); + stritems.insert(V->SourcePkgName); + stritems.insert(V->SourceVerStr); for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; ++D) { if (D->Version != 0) - DepVerSize += strlen(D.TargetVer()) + 1; + stritems.insert(D->Version); + } + for (pkgCache::DescIterator D = V.DescriptionList(); D.end() == false; ++D) + { + stritems.insert(D->md5sum); + stritems.insert(D->language_code); } } + for (pkgCache::PrvIterator Prv = P.ProvidesList(); Prv.end() == false; ++Prv) + { + if (Prv->ProvideVersion != 0) + stritems.insert(Prv->ProvideVersion); + } } - cout << _("Total dependency version space: ") << SizeToStr(DepVerSize) << endl; - + for (pkgCache::RlsFileIterator F = Cache->RlsFileBegin(); F != Cache->RlsFileEnd(); ++F) + { + stritems.insert(F->FileName); + stritems.insert(F->Archive); + stritems.insert(F->Codename); + stritems.insert(F->Version); + stritems.insert(F->Origin); + stritems.insert(F->Label); + stritems.insert(F->Site); + } + for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F != Cache->FileEnd(); ++F) + { + stritems.insert(F->FileName); + stritems.insert(F->Architecture); + stritems.insert(F->Component); + stritems.insert(F->IndexType); + } + + unsigned long Size = 0; + for (std::set::const_iterator i = stritems.begin(); i != stritems.end(); ++i) + Size += strlen(Cache->StrP + *i) + 1; + cout << _("Total globbed strings: ") << stritems.size() << " (" << SizeToStr(Size) << ')' << endl; + stritems.clear(); + unsigned long Slack = 0; for (int I = 0; I != 7; I++) Slack += Cache->Head().Pools[I].ItemSize*Cache->Head().Pools[I].Count; cout << _("Total slack space: ") << SizeToStr(Slack) << endl; - + unsigned long Total = 0; - Total = Slack + Size + Cache->Head().DependsCount*Cache->Head().DependencySz + - Cache->Head().VersionCount*Cache->Head().VersionSz + - Cache->Head().PackageCount*Cache->Head().PackageSz + - Cache->Head().VerFileCount*Cache->Head().VerFileSz + - Cache->Head().ProvidesCount*Cache->Head().ProvidesSz; +#define APT_CACHESIZE(X,Y) (Cache->Head().X * Cache->Head().Y) + Total = Slack + Size + + APT_CACHESIZE(GroupCount, GroupSz) + + APT_CACHESIZE(PackageCount, PackageSz) + + APT_CACHESIZE(VersionCount, VersionSz) + + APT_CACHESIZE(DescriptionCount, DescriptionSz) + + APT_CACHESIZE(DependsCount, DependencySz) + + APT_CACHESIZE(DependsDataCount, DependencyDataSz) + + APT_CACHESIZE(ReleaseFileCount, ReleaseFileSz) + + APT_CACHESIZE(PackageFileCount, PackageFileSz) + + APT_CACHESIZE(VerFileCount, VerFileSz) + + APT_CACHESIZE(DescFileCount, DescFileSz) + + APT_CACHESIZE(ProvidesCount, ProvidesSz) + + (2 * Cache->Head().GetHashTableSize() * sizeof(map_id_t)); cout << _("Total space accounted for: ") << SizeToStr(Total) << endl; - +#undef APT_CACHESIZE + + // hashtable stats + ShowHashTableStats("PkgHashTable", Cache->PkgP, Cache->Head().PkgHashTableP(), Cache->Head().GetHashTableSize(), PackageNext); + ShowHashTableStats("GrpHashTable", Cache->GrpP, Cache->Head().GrpHashTableP(), Cache->Head().GetHashTableSize(), GroupNext); + return true; } /*}}}*/ @@ -496,6 +461,12 @@ static bool DumpAvail(CommandLine &) LocalitySort(VFList,Count,sizeof(*VFList)); + std::vector RW; + RW.push_back(pkgTagSection::Tag::Remove("Status")); + RW.push_back(pkgTagSection::Tag::Remove("Config-Version")); + FileFd stdoutfd; + stdoutfd.OpenDescriptor(STDOUT_FILENO, FileFd::WriteOnly, false); + // Iterate over all the package files and write them out. char *Buffer = new char[Cache->HeaderP->MaxVerFileSize+10]; for (pkgCache::VerFile **J = VFList; *J != 0;) @@ -536,168 +507,37 @@ static bool DumpAvail(CommandLine &) if (PkgF.Read(Buffer,VF.Size + Jitter) == false) break; Buffer[VF.Size + Jitter] = '\n'; - + // See above.. if ((File->Flags & pkgCache::Flag::NotSource) == pkgCache::Flag::NotSource) { pkgTagSection Tags; - TFRewriteData RW[] = {{"Status", NULL, NULL},{"Config-Version", NULL, NULL},{NULL, NULL, NULL}}; - const char *Zero = 0; if (Tags.Scan(Buffer+Jitter,VF.Size+1) == false || - TFRewrite(stdout,Tags,&Zero,RW) == false) + Tags.Write(stdoutfd, NULL, RW) == false || + stdoutfd.Write("\n", 1) == false) { _error->Error("Internal Error, Unable to parse a package record"); break; } - fputc('\n',stdout); } else { - if (fwrite(Buffer+Jitter,VF.Size+1,1,stdout) != 1) + if (stdoutfd.Write(Buffer + Jitter, VF.Size + 1) == false) break; } - + Pos = VF.Offset + VF.Size; } - fflush(stdout); if (_error->PendingError() == true) break; } - + delete [] Buffer; delete [] VFList; return !_error->PendingError(); } /*}}}*/ -// ShowDepends - Helper for printing out a dependency tree /*{{{*/ -static bool ShowDepends(CommandLine &CmdL, bool const RevDepends) -{ - pkgCacheFile CacheFile; - pkgCache *Cache = CacheFile.GetPkgCache(); - if (unlikely(Cache == NULL)) - return false; - - CacheSetHelperVirtuals helper(false); - APT::VersionList verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, APT::VersionList::CANDIDATE, helper); - if (verset.empty() == true && helper.virtualPkgs.empty() == true) - return _error->Error(_("No packages found")); - std::vector Shown(Cache->Head().PackageCount); - - bool const Recurse = _config->FindB("APT::Cache::RecurseDepends", false); - bool const Installed = _config->FindB("APT::Cache::Installed", false); - bool const Important = _config->FindB("APT::Cache::Important", false); - bool const ShowDepType = _config->FindB("APT::Cache::ShowDependencyType", RevDepends == false); - bool const ShowVersion = _config->FindB("APT::Cache::ShowVersion", false); - bool const ShowPreDepends = _config->FindB("APT::Cache::ShowPre-Depends", true); - bool const ShowDepends = _config->FindB("APT::Cache::ShowDepends", true); - bool const ShowRecommends = _config->FindB("APT::Cache::ShowRecommends", Important == false); - bool const ShowSuggests = _config->FindB("APT::Cache::ShowSuggests", Important == false); - bool const ShowReplaces = _config->FindB("APT::Cache::ShowReplaces", Important == false); - bool const ShowConflicts = _config->FindB("APT::Cache::ShowConflicts", Important == false); - bool const ShowBreaks = _config->FindB("APT::Cache::ShowBreaks", Important == false); - bool const ShowEnhances = _config->FindB("APT::Cache::ShowEnhances", Important == false); - bool const ShowOnlyFirstOr = _config->FindB("APT::Cache::ShowOnlyFirstOr", false); - - while (verset.empty() != true) - { - pkgCache::VerIterator Ver = *verset.begin(); - verset.erase(verset.begin()); - pkgCache::PkgIterator Pkg = Ver.ParentPkg(); - Shown[Pkg->ID] = true; - - cout << Pkg.FullName(true) << endl; - - if (RevDepends == true) - cout << "Reverse Depends:" << endl; - for (pkgCache::DepIterator D = RevDepends ? Pkg.RevDependsList() : Ver.DependsList(); - D.end() == false; ++D) - { - switch (D->Type) { - case pkgCache::Dep::PreDepends: if (!ShowPreDepends) continue; break; - case pkgCache::Dep::Depends: if (!ShowDepends) continue; break; - case pkgCache::Dep::Recommends: if (!ShowRecommends) continue; break; - case pkgCache::Dep::Suggests: if (!ShowSuggests) continue; break; - case pkgCache::Dep::Replaces: if (!ShowReplaces) continue; break; case pkgCache::Dep::Conflicts: if (!ShowConflicts) continue; break; - case pkgCache::Dep::DpkgBreaks: if (!ShowBreaks) continue; break; - case pkgCache::Dep::Enhances: if (!ShowEnhances) continue; break; - } - - pkgCache::PkgIterator Trg = RevDepends ? D.ParentPkg() : D.TargetPkg(); - - if((Installed && Trg->CurrentVer != 0) || !Installed) - { - - if ((D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or && ShowOnlyFirstOr == false) - cout << " |"; - else - cout << " "; - - // Show the package - if (ShowDepType == true) - cout << D.DepType() << ": "; - if (Trg->VersionList == 0) - cout << "<" << Trg.FullName(true) << ">"; - else - cout << Trg.FullName(true); - if (ShowVersion == true && D->Version != 0) - cout << " (" << pkgCache::CompTypeDeb(D->CompareOp) << ' ' << D.TargetVer() << ')'; - cout << std::endl; - - if (Recurse == true && Shown[Trg->ID] == false) - { - Shown[Trg->ID] = true; - verset.insert(APT::VersionSet::FromPackage(CacheFile, Trg, APT::VersionSet::CANDIDATE, helper)); - } - - } - - // Display all solutions - SPtrArray List = D.AllTargets(); - pkgPrioSortList(*Cache,List); - for (pkgCache::Version **I = List; *I != 0; I++) - { - pkgCache::VerIterator V(*Cache,*I); - if (V != Cache->VerP + V.ParentPkg()->VersionList || - V->ParentPkg == D->Package) - continue; - cout << " " << V.ParentPkg().FullName(true) << endl; - - if (Recurse == true && Shown[V.ParentPkg()->ID] == false) - { - Shown[V.ParentPkg()->ID] = true; - verset.insert(APT::VersionSet::FromPackage(CacheFile, V.ParentPkg(), APT::VersionSet::CANDIDATE, helper)); - } - } - - if (ShowOnlyFirstOr == true) - while ((D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or) ++D; - } - } - - for (APT::PackageSet::const_iterator Pkg = helper.virtualPkgs.begin(); - Pkg != helper.virtualPkgs.end(); ++Pkg) - cout << '<' << Pkg.FullName(true) << '>' << endl; - - return true; -} - /*}}}*/ -// Depends - Print out a dependency tree /*{{{*/ -// --------------------------------------------------------------------- -/* */ -static bool Depends(CommandLine &CmdL) -{ - return ShowDepends(CmdL, false); -} - /*}}}*/ -// RDepends - Print out a reverse dependency tree /*{{{*/ -// --------------------------------------------------------------------- -/* */ -static bool RDepends(CommandLine &CmdL) -{ - return ShowDepends(CmdL, true); -} - /*}}}*/ // xvcg - Generate a graph for xvcg /*{{{*/ // --------------------------------------------------------------------- // Code contributed from Junichi Uekawa on 20 June 2002. @@ -761,9 +601,9 @@ static bool XVcg(CommandLine &CmdL) // Load the list of packages from the command line into the show list APT::CacheSetHelper helper(true, GlobalError::NOTICE); - std::list mods; - mods.push_back(APT::PackageSet::Modifier(0, ",", APT::PackageSet::Modifier::POSTFIX)); - mods.push_back(APT::PackageSet::Modifier(1, "^", APT::PackageSet::Modifier::POSTFIX)); + std::list mods; + mods.push_back(APT::CacheSetHelper::PkgModifier(0, ",", APT::PackageSet::Modifier::POSTFIX)); + mods.push_back(APT::CacheSetHelper::PkgModifier(1, "^", APT::PackageSet::Modifier::POSTFIX)); std::map pkgsets = APT::PackageSet::GroupedFromCommandLine(CacheFile, CmdL.FileList + 1, mods, 0, helper); @@ -973,9 +813,9 @@ static bool Dotty(CommandLine &CmdL) // Load the list of packages from the command line into the show list APT::CacheSetHelper helper(true, GlobalError::NOTICE); - std::list mods; - mods.push_back(APT::PackageSet::Modifier(0, ",", APT::PackageSet::Modifier::POSTFIX)); - mods.push_back(APT::PackageSet::Modifier(1, "^", APT::PackageSet::Modifier::POSTFIX)); + std::list mods; + mods.push_back(APT::CacheSetHelper::PkgModifier(0, ",", APT::PackageSet::Modifier::POSTFIX)); + mods.push_back(APT::CacheSetHelper::PkgModifier(1, "^", APT::PackageSet::Modifier::POSTFIX)); std::map pkgsets = APT::PackageSet::GroupedFromCommandLine(CacheFile, CmdL.FileList + 1, mods, 0, helper); @@ -1113,289 +953,6 @@ static bool Dotty(CommandLine &CmdL) return true; } /*}}}*/ -// DisplayRecord - Displays the complete record for the package /*{{{*/ -// --------------------------------------------------------------------- -/* This displays the package record from the proper package index file. - It is not used by DumpAvail for performance reasons. */ - -static APT_PURE unsigned char const* skipDescriptionFields(unsigned char const * DescP) -{ - char const * const TagName = "\nDescription"; - size_t const TagLen = strlen(TagName); - while ((DescP = (unsigned char*)strchr((char*)DescP, '\n')) != NULL) - { - if (DescP[1] == ' ') - DescP += 2; - else if (strncmp((char*)DescP, TagName, TagLen) == 0) - DescP += TagLen; - else - break; - } - if (DescP != NULL) - ++DescP; - return DescP; -} -static bool DisplayRecord(pkgCacheFile &CacheFile, pkgCache::VerIterator V) -{ - pkgCache *Cache = CacheFile.GetPkgCache(); - if (unlikely(Cache == NULL)) - return false; - - // Find an appropriate file - pkgCache::VerFileIterator Vf = V.FileList(); - for (; Vf.end() == false; ++Vf) - if ((Vf.File()->Flags & pkgCache::Flag::NotSource) == 0) - break; - if (Vf.end() == true) - Vf = V.FileList(); - - // Check and load the package list file - pkgCache::PkgFileIterator I = Vf.File(); - if (I.IsOk() == false) - return _error->Error(_("Package file %s is out of sync."),I.FileName()); - - FileFd PkgF; - if (PkgF.Open(I.FileName(), FileFd::ReadOnly, FileFd::Extension) == false) - return false; - - // Read the record (and ensure that it ends with a newline and NUL) - unsigned char *Buffer = new unsigned char[Cache->HeaderP->MaxVerFileSize+2]; - Buffer[Vf->Size] = '\n'; - Buffer[Vf->Size+1] = '\0'; - if (PkgF.Seek(Vf->Offset) == false || - PkgF.Read(Buffer,Vf->Size) == false) - { - delete [] Buffer; - return false; - } - - // Get a pointer to start of Description field - const unsigned char *DescP = (unsigned char*)strstr((char*)Buffer, "\nDescription"); - if (DescP != NULL) - ++DescP; - else - DescP = Buffer + Vf->Size; - - // Write all but Description - size_t const length = DescP - Buffer; - if (length != 0 && FileFd::Write(STDOUT_FILENO, Buffer, length) == false) - { - delete [] Buffer; - return false; - } - - // Show the right description - pkgRecords Recs(*Cache); - pkgCache::DescIterator Desc = V.TranslatedDescription(); - if (Desc.end() == false) - { - pkgRecords::Parser &P = Recs.Lookup(Desc.FileList()); - cout << "Description" << ( (strcmp(Desc.LanguageCode(),"") != 0) ? "-" : "" ) << Desc.LanguageCode() << ": " << P.LongDesc(); - cout << std::endl << "Description-md5: " << Desc.md5() << std::endl; - - // Find the first field after the description (if there is any) - DescP = skipDescriptionFields(DescP); - } - // else we have no translation, so we found a lonely Description-md5 -> don't skip it - - // write the rest of the buffer, but skip mixed in Descriptions* fields - while (DescP != NULL) - { - const unsigned char * const Start = DescP; - const unsigned char *End = (unsigned char*)strstr((char*)DescP, "\nDescription"); - if (End == NULL) - { - End = &Buffer[Vf->Size]; - DescP = NULL; - } - else - { - ++End; // get the newline into the output - DescP = skipDescriptionFields(End + strlen("Description")); - } - size_t const length = End - Start; - if (length != 0 && FileFd::Write(STDOUT_FILENO, Start, length) == false) - { - delete [] Buffer; - return false; - } - } - - // write a final newline after the last field - cout<FindB("APT::Cache::ShowFull",false); - bool const NamesOnly = _config->FindB("APT::Cache::NamesOnly",false); - unsigned int const NumPatterns = CmdL.FileSize() -1; - - pkgCacheFile CacheFile; - pkgCache *Cache = CacheFile.GetPkgCache(); - pkgDepCache::Policy *Plcy = CacheFile.GetPolicy(); - if (unlikely(Cache == NULL || Plcy == NULL)) - return false; - - // Make sure there is at least one argument - if (NumPatterns < 1) - return _error->Error(_("You must give at least one search pattern")); - - // Compile the regex pattern - regex_t *Patterns = new regex_t[NumPatterns]; - memset(Patterns,0,sizeof(*Patterns)*NumPatterns); - for (unsigned I = 0; I != NumPatterns; I++) - { - if (regcomp(&Patterns[I],CmdL.FileList[I+1],REG_EXTENDED | REG_ICASE | - REG_NOSUB) != 0) - { - for (; I != 0; I--) - regfree(&Patterns[I]); - return _error->Error("Regex compilation error"); - } - } - - if (_error->PendingError() == true) - { - for (unsigned I = 0; I != NumPatterns; I++) - regfree(&Patterns[I]); - return false; - } - - size_t const descCount = Cache->HeaderP->GroupCount + 1; - ExDescFile *DFList = new ExDescFile[descCount]; - memset(DFList,0,sizeof(*DFList) * descCount); - - bool PatternMatch[descCount * NumPatterns]; - memset(PatternMatch,false,sizeof(PatternMatch)); - - // Map versions that we want to write out onto the VerList array. - for (pkgCache::GrpIterator G = Cache->GrpBegin(); G.end() == false; ++G) - { - size_t const PatternOffset = G->ID * NumPatterns; - size_t unmatched = 0, matched = 0; - for (unsigned I = 0; I < NumPatterns; ++I) - { - if (PatternMatch[PatternOffset + I] == true) - ++matched; - else if (regexec(&Patterns[I],G.Name(),0,0,0) == 0) - PatternMatch[PatternOffset + I] = true; - else - ++unmatched; - } - - // already dealt with this package? - if (matched == NumPatterns) - continue; - - // Doing names only, drop any that don't match.. - if (NamesOnly == true && unmatched == NumPatterns) - continue; - - // Find the proper version to use - pkgCache::PkgIterator P = G.FindPreferredPkg(); - if (P.end() == true) - continue; - pkgCache::VerIterator V = Plcy->GetCandidateVer(P); - if (V.end() == false) - { - pkgCache::DescIterator const D = V.TranslatedDescription(); - //FIXME: packages without a description can't be found - if (D.end() == true) - continue; - DFList[G->ID].Df = D.FileList(); - DFList[G->ID].ID = G->ID; - } - - if (unmatched == NumPatterns) - continue; - - // Include all the packages that provide matching names too - for (pkgCache::PrvIterator Prv = P.ProvidesList() ; Prv.end() == false; ++Prv) - { - pkgCache::VerIterator V = Plcy->GetCandidateVer(Prv.OwnerPkg()); - if (V.end() == true) - continue; - - unsigned long id = Prv.OwnerPkg().Group()->ID; - pkgCache::DescIterator const D = V.TranslatedDescription(); - //FIXME: packages without a description can't be found - if (D.end() == true) - continue; - DFList[id].Df = D.FileList(); - DFList[id].ID = id; - - size_t const PrvPatternOffset = id * NumPatterns; - for (unsigned I = 0; I < NumPatterns; ++I) - PatternMatch[PrvPatternOffset + I] = PatternMatch[PatternOffset + I]; - } - } - - LocalitySort(&DFList->Df,Cache->HeaderP->GroupCount,sizeof(*DFList)); - - // Create the text record parser - pkgRecords Recs(*Cache); - // Iterate over all the version records and check them - for (ExDescFile *J = DFList; J->Df != 0; ++J) - { - pkgRecords::Parser &P = Recs.Lookup(pkgCache::DescFileIterator(*Cache,J->Df)); - size_t const PatternOffset = J->ID * NumPatterns; - - if (NamesOnly == false) - { - string const LongDesc = P.LongDesc(); - for (unsigned I = 0; I < NumPatterns; ++I) - { - if (PatternMatch[PatternOffset + I] == true) - continue; - else if (regexec(&Patterns[I],LongDesc.c_str(),0,0,0) == 0) - PatternMatch[PatternOffset + I] = true; - } - } - - bool matchedAll = true; - for (unsigned I = 0; I < NumPatterns; ++I) - if (PatternMatch[PatternOffset + I] == false) - { - matchedAll = false; - break; - } - - if (matchedAll == true) - { - if (ShowFull == true) - { - const char *Start; - const char *End; - P.GetRec(Start,End); - fwrite(Start,End-Start,1,stdout); - putc('\n',stdout); - } - else - printf("%s - %s\n",P.Name().c_str(),P.ShortDesc().c_str()); - } - } - - delete [] DFList; - for (unsigned I = 0; I != NumPatterns; I++) - regfree(&Patterns[I]); - if (ferror(stdout)) - return _error->Error("Write to stdout failed"); - return true; -} - /*}}}*/ /* ShowAuto - show automatically installed packages (sorted) {{{*/ static bool ShowAuto(CommandLine &) { @@ -1421,30 +978,6 @@ static bool ShowAuto(CommandLine &) return true; } /*}}}*/ -// ShowPackage - Dump the package record to the screen /*{{{*/ -// --------------------------------------------------------------------- -/* */ -static bool ShowPackage(CommandLine &CmdL) -{ - pkgCacheFile CacheFile; - CacheSetHelperVirtuals helper(true, GlobalError::NOTICE); - APT::VersionList::Version const select = _config->FindB("APT::Cache::AllVersions", true) ? - APT::VersionList::ALL : APT::VersionList::CANDIDATE; - APT::VersionList const verset = APT::VersionList::FromCommandLine(CacheFile, CmdL.FileList + 1, select, helper); - for (APT::VersionList::const_iterator Ver = verset.begin(); Ver != verset.end(); ++Ver) - if (DisplayRecord(CacheFile, Ver) == false) - return false; - - if (verset.empty() == true) - { - if (helper.virtualPkgs.empty() == true) - return _error->Error(_("No packages found")); - else - _error->Notice(_("No packages found")); - } - return true; -} - /*}}}*/ // ShowPkgNames - Show package names /*{{{*/ // --------------------------------------------------------------------- /* This does a prefix match on the first argument */ @@ -1481,172 +1014,6 @@ static bool ShowPkgNames(CommandLine &CmdL) cout << I.Name() << endl; } - return true; -} - /*}}}*/ -// ShowSrcPackage - Show source package records /*{{{*/ -// --------------------------------------------------------------------- -/* */ -static bool ShowSrcPackage(CommandLine &CmdL) -{ - pkgCacheFile CacheFile; - pkgSourceList *List = CacheFile.GetSourceList(); - if (unlikely(List == NULL)) - return false; - - // Create the text record parsers - pkgSrcRecords SrcRecs(*List); - if (_error->PendingError() == true) - return false; - - unsigned found = 0; - for (const char **I = CmdL.FileList + 1; *I != 0; I++) - { - SrcRecs.Restart(); - - pkgSrcRecords::Parser *Parse; - unsigned found_this = 0; - while ((Parse = SrcRecs.Find(*I,false)) != 0) { - cout << Parse->AsStr() << endl;; - found++; - found_this++; - } - if (found_this == 0) { - _error->Warning(_("Unable to locate package %s"),*I); - continue; - } - } - if (found == 0) - _error->Notice(_("No packages found")); - return true; -} - /*}}}*/ -// Policy - Show the results of the preferences file /*{{{*/ -// --------------------------------------------------------------------- -/* */ -static bool Policy(CommandLine &CmdL) -{ - pkgCacheFile CacheFile; - pkgCache *Cache = CacheFile.GetPkgCache(); - pkgPolicy *Plcy = CacheFile.GetPolicy(); - pkgSourceList *SrcList = CacheFile.GetSourceList(); - if (unlikely(Cache == NULL || Plcy == NULL || SrcList == NULL)) - return false; - - /* Should the MultiArchKiller be run to see which pseudo packages for an - arch all package are currently installed? Activating it gives a speed - penality for no real gain beside enhanced debugging, so in general no. */ - if (_config->FindB("APT::Cache::Policy::DepCache", false) == true) - CacheFile.GetDepCache(); - - // Print out all of the package files - if (CmdL.FileList[1] == 0) - { - cout << _("Package files:") << endl; - for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F.end() == false; ++F) - { - // Locate the associated index files so we can derive a description - pkgIndexFile *Indx; - if (SrcList->FindIndex(F,Indx) == false && - _system->FindIndex(F,Indx) == false) - return _error->Error(_("Cache is out of sync, can't x-ref a package file")); - - printf("%4i %s\n", - Plcy->GetPriority(F),Indx->Describe(true).c_str()); - - // Print the reference information for the package - string Str = F.RelStr(); - if (Str.empty() == false) - printf(" release %s\n",F.RelStr().c_str()); - if (F.Site() != 0 && F.Site()[0] != 0) - printf(" origin %s\n",F.Site()); - } - - // Show any packages have explicit pins - cout << _("Pinned packages:") << endl; - pkgCache::PkgIterator I = Cache->PkgBegin(); - for (;I.end() != true; ++I) - { - if (Plcy->GetPriority(I) == 0) - continue; - - // Print the package name and the version we are forcing to - cout << " " << I.FullName(true) << " -> "; - - pkgCache::VerIterator V = Plcy->GetMatch(I); - if (V.end() == true) - cout << _("(not found)") << endl; - else - cout << V.VerStr() << endl; - } - - return true; - } - - char const * const msgInstalled = _(" Installed: "); - char const * const msgCandidate = _(" Candidate: "); - short const InstalledLessCandidate = - mbstowcs(NULL, msgInstalled, 0) - mbstowcs(NULL, msgCandidate, 0); - short const deepInstalled = - (InstalledLessCandidate < 0 ? (InstalledLessCandidate*-1) : 0) - 1; - short const deepCandidate = - (InstalledLessCandidate > 0 ? (InstalledLessCandidate) : 0) - 1; - - // Print out detailed information for each package - APT::CacheSetHelper helper(true, GlobalError::NOTICE); - APT::PackageList pkgset = APT::PackageList::FromCommandLine(CacheFile, CmdL.FileList + 1, helper); - for (APT::PackageList::const_iterator Pkg = pkgset.begin(); Pkg != pkgset.end(); ++Pkg) - { - cout << Pkg.FullName(true) << ":" << endl; - - // Installed version - cout << msgInstalled << OutputInDepth(deepInstalled, " "); - if (Pkg->CurrentVer == 0) - cout << _("(none)") << endl; - else - cout << Pkg.CurrentVer().VerStr() << endl; - - // Candidate Version - cout << msgCandidate << OutputInDepth(deepCandidate, " "); - pkgCache::VerIterator V = Plcy->GetCandidateVer(Pkg); - if (V.end() == true) - cout << _("(none)") << endl; - else - cout << V.VerStr() << endl; - - // Pinned version - if (Plcy->GetPriority(Pkg) != 0) - { - cout << _(" Package pin: "); - V = Plcy->GetMatch(Pkg); - if (V.end() == true) - cout << _("(not found)") << endl; - else - cout << V.VerStr() << endl; - } - - // Show the priority tables - cout << _(" Version table:") << endl; - for (V = Pkg.VersionList(); V.end() == false; ++V) - { - if (Pkg.CurrentVer() == V) - cout << " *** " << V.VerStr(); - else - cout << " " << V.VerStr(); - cout << " " << Plcy->GetPriority(Pkg) << endl; - for (pkgCache::VerFileIterator VF = V.FileList(); VF.end() == false; ++VF) - { - // Locate the associated index files so we can derive a description - pkgIndexFile *Indx; - if (SrcList->FindIndex(VF.File(),Indx) == false && - _system->FindIndex(VF.File(),Indx) == false) - return _error->Error(_("Cache is out of sync, can't x-ref a package file")); - printf(" %4i %s\n",Plcy->GetPriority(VF.File()), - Indx->Describe(true).c_str()); - } - } - } - return true; } /*}}}*/ @@ -1734,116 +1101,58 @@ static bool GenCaches(CommandLine &) return CacheFile.BuildCaches(&Progress, true); } /*}}}*/ -// ShowHelp - Show a help screen /*{{{*/ -// --------------------------------------------------------------------- -/* */ -static bool ShowHelp(CommandLine &) +static bool ShowHelp(CommandLine &) /*{{{*/ { - ioprintf(cout,_("%s %s for %s compiled on %s %s\n"),PACKAGE,PACKAGE_VERSION, - COMMON_ARCH,__DATE__,__TIME__); - - if (_config->FindB("version") == true) - return true; - - cout << + std::cout << _("Usage: apt-cache [options] command\n" - " apt-cache [options] showpkg pkg1 [pkg2 ...]\n" - " apt-cache [options] showsrc pkg1 [pkg2 ...]\n" - "\n" - "apt-cache is a low-level tool used to query information\n" - "from APT's binary cache files\n" - "\n" - "Commands:\n" - " gencaches - Build both the package and source cache\n" - " showpkg - Show some general information for a single package\n" - " showsrc - Show source records\n" - " stats - Show some basic statistics\n" - " dump - Show the entire file in a terse form\n" - " dumpavail - Print an available file to stdout\n" - " unmet - Show unmet dependencies\n" - " search - Search the package list for a regex pattern\n" - " show - Show a readable record for the package\n" - " depends - Show raw dependency information for a package\n" - " rdepends - Show reverse dependency information for a package\n" - " pkgnames - List the names of all packages in the system\n" - " dotty - Generate package graphs for GraphViz\n" - " xvcg - Generate package graphs for xvcg\n" - " policy - Show policy settings\n" + " apt-cache [options] show pkg1 [pkg2 ...]\n" "\n" - "Options:\n" - " -h This help text.\n" - " -p=? The package cache.\n" - " -s=? The source cache.\n" - " -q Disable progress indicator.\n" - " -i Show only important deps for the unmet command.\n" - " -c=? Read this configuration file\n" - " -o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp\n" - "See the apt-cache(8) and apt.conf(5) manual pages for more information.\n"); + "apt-cache queries and displays available information about installed\n" + "and installable packages. It works exclusively on the data acquired\n" + "into the local cache via the 'update' command of e.g. apt-get. The\n" + "displayed information may therefore be outdated if the last update was\n" + "too long ago, but in exchange apt-cache works independently of the\n" + "availability of the configured sources (e.g. offline).\n"); return true; } /*}}}*/ +static std::vector GetCommands() /*{{{*/ +{ + return { + {"gencaches",&GenCaches, nullptr}, + {"showsrc",&ShowSrcPackage, _("Show source records")}, + {"showpkg",&DumpPackage, nullptr}, + {"stats",&Stats, nullptr}, + {"dump",&Dump, nullptr}, + {"dumpavail",&DumpAvail, nullptr}, + {"unmet",&UnMet, nullptr}, + {"search",&DoSearch, _("Search the package list for a regex pattern")}, + {"depends",&Depends, _("Show raw dependency information for a package")}, + {"rdepends",&RDepends, _("Show reverse dependency information for a package")}, + {"dotty",&Dotty, nullptr}, + {"xvcg",&XVcg, nullptr}, + {"show",&ShowPackage, _("Show a readable record for the package")}, + {"pkgnames",&ShowPkgNames, _("List the names of all packages in the system")}, + {"showauto",&ShowAuto, nullptr}, + {"policy",&Policy, _("Show policy settings")}, + {"madison",&Madison, nullptr}, + {nullptr, nullptr, nullptr} + }; +} + /*}}}*/ int main(int argc,const char *argv[]) /*{{{*/ { - CommandLine::Dispatch Cmds[] = {{"help",&ShowHelp}, - {"gencaches",&GenCaches}, - {"showsrc",&ShowSrcPackage}, - {"showpkg",&DumpPackage}, - {"stats",&Stats}, - {"dump",&Dump}, - {"dumpavail",&DumpAvail}, - {"unmet",&UnMet}, - {"search",&Search}, - {"depends",&Depends}, - {"rdepends",&RDepends}, - {"dotty",&Dotty}, - {"xvcg",&XVcg}, - {"show",&ShowPackage}, - {"pkgnames",&ShowPkgNames}, - {"showauto",&ShowAuto}, - {"policy",&Policy}, - {"madison",&Madison}, - {0,0}}; - - std::vector Args = getCommandArgs("apt-cache", CommandLine::GetCommand(Cmds, argc, argv)); - - // Set up gettext support - setlocale(LC_ALL,""); - textdomain(PACKAGE); + InitLocale(); // Parse the command line and initialize the package library - CommandLine CmdL(Args.data(),_config); - if (pkgInitConfig(*_config) == false || - CmdL.Parse(argc,argv) == false || - pkgInitSystem(*_config,_system) == false) - { - _error->DumpErrors(); - return 100; - } + CommandLine CmdL; + auto const Cmds = ParseCommandLine(CmdL, APT_CMD::APT_CACHE, &_config, &_system, argc, argv, &ShowHelp, &GetCommands); - // See if the help should be shown - if (_config->FindB("help") == true || - CmdL.FileSize() == 0) - { - ShowHelp(CmdL); - return 0; - } - - // Deal with stdout not being a tty - if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1) - _config->Set("quiet","1"); + InitOutput(); if (_config->Exists("APT::Cache::Generate") == true) _config->Set("pkgCacheFile::Generate", _config->FindB("APT::Cache::Generate", true)); - // Match the operation - CmdL.DispatchArg(Cmds); - - // Print any errors or warnings found during parsing - bool const Errors = _error->PendingError(); - if (_config->FindI("quiet",0) > 0) - _error->DumpErrors(); - else - _error->DumpErrors(GlobalError::DEBUG); - return Errors == true ? 100 : 0; + return DispatchCommandLine(CmdL, Cmds); } /*}}}*/