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apt-cache.cc
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apt-cache.cc
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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
/* ######################################################################
apt-cache - Manages the cache files
apt-cache provides some functions fo manipulating the cache files.
It uses the command line interface common to all the APT tools.
Returns 100 on failure, 0 on success.
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include <config.h>
#include <apt-pkg/algorithms.h>
#include <apt-pkg/cachefile.h>
#include <apt-pkg/cacheset.h>
#include <apt-pkg/cmndline.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/error.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/indexfile.h>
#include <apt-pkg/init.h>
#include <apt-pkg/macros.h>
#include <apt-pkg/metaindex.h>
#include <apt-pkg/mmap.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/pkgrecords.h>
#include <apt-pkg/pkgsystem.h>
#include <apt-pkg/policy.h>
#include <apt-pkg/progress.h>
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/srcrecords.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/tagfile.h>
#include <apt-pkg/version.h>
#include <apt-private/private-cacheset.h>
#include <apt-private/private-cmndline.h>
#include <apt-private/private-depends.h>
#include <apt-private/private-main.h>
#include <apt-private/private-search.h>
#include <apt-private/private-show.h>
#include <apt-private/private-unmet.h>
#include <algorithm>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <set>
#include <string>
#include <vector>
#include <regex.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <apti18n.h>
/*}}}*/
using namespace std;
// DumpPackage - Show a dump of a package record /*{{{*/
// ---------------------------------------------------------------------
/* */
static bool DumpPackage(CommandLine &CmdL)
{
pkgCacheFile CacheFile;
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 << "Package: " << Pkg.FullName(true) << endl;
cout << "Versions: " << endl;
for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; ++Cur)
{
cout << Cur.VerStr();
for (pkgCache::VerFileIterator Vf = Cur.FileList(); Vf.end() == false; ++Vf)
cout << " (" << Vf.File().FileName() << ")";
cout << endl;
for (pkgCache::DescIterator D = Cur.DescriptionList(); D.end() == false; ++D)
{
cout << " Description Language: " << D.LanguageCode() << endl
<< " File: " << D.FileList().File().FileName() << endl
<< " MD5: " << D.md5() << endl;
}
cout << endl;
}
cout << endl;
cout << "Reverse Depends: " << endl;
for (pkgCache::DepIterator D = Pkg.RevDependsList(); D.end() != true; ++D)
{
cout << " " << D.ParentPkg().FullName(true) << ',' << D.TargetPkg().FullName(true);
if (D->Version != 0)
cout << ' ' << DeNull(D.TargetVer()) << endl;
else
cout << endl;
}
cout << "Dependencies: " << endl;
for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; ++Cur)
{
cout << Cur.VerStr() << " - ";
for (pkgCache::DepIterator Dep = Cur.DependsList(); Dep.end() != true; ++Dep)
cout << Dep.TargetPkg().FullName(true) << " (" << (int)Dep->CompareOp << " " << DeNull(Dep.TargetVer()) << ") ";
cout << endl;
}
cout << "Provides: " << endl;
for (pkgCache::VerIterator Cur = Pkg.VersionList(); Cur.end() != true; ++Cur)
{
cout << Cur.VerStr() << " - ";
for (pkgCache::PrvIterator Prv = Cur.ProvidesList(); Prv.end() != true; ++Prv)
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() << " (= " << (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<class T>
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 &CmdL)
{
if (CmdL.FileSize() > 1) {
_error->Error(_("%s does not take any arguments"), "apt-cache stats");
return false;
}
pkgCacheFile CacheFile;
pkgCache *Cache = CacheFile.GetPkgCache();
if (unlikely(Cache == NULL))
return false;
cout << _("Total package names: ") << Cache->Head().GroupCount << " (" <<
SizeToStr(Cache->Head().GroupCount*Cache->Head().GroupSz) << ')' << endl
<< _("Total package structures: ") << Cache->Head().PackageCount << " (" <<
SizeToStr(Cache->Head().PackageCount*Cache->Head().PackageSz) << ')' << endl;
int Normal = 0;
int Virtual = 0;
int NVirt = 0;
int DVirt = 0;
int Missing = 0;
pkgCache::PkgIterator I = Cache->PkgBegin();
for (;I.end() != true; ++I)
{
if (I->VersionList != 0 && I->ProvidesList == 0)
{
Normal++;
continue;
}
if (I->VersionList != 0 && I->ProvidesList != 0)
{
NVirt++;
continue;
}
if (I->VersionList == 0 && I->ProvidesList != 0)
{
// Only 1 provides
if (I.ProvidesList()->NextProvides == 0)
{
DVirt++;
}
else
Virtual++;
continue;
}
if (I->VersionList == 0 && I->ProvidesList == 0)
{
Missing++;
continue;
}
}
cout << _(" Normal packages: ") << Normal << endl;
cout << _(" Pure virtual packages: ") << Virtual << endl;
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 << "/" << 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
std::set<map_stringitem_t> 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)
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);
}
}
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<map_stringitem_t>::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;
#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<pkgCache::Package>("PkgHashTable", Cache->PkgP, Cache->Head().PkgHashTableP(), Cache->Head().GetHashTableSize(), PackageNext);
ShowHashTableStats<pkgCache::Group>("GrpHashTable", Cache->GrpP, Cache->Head().GrpHashTableP(), Cache->Head().GetHashTableSize(), GroupNext);
return true;
}
/*}}}*/
// Dump - show everything /*{{{*/
// ---------------------------------------------------------------------
/* This is worthless except fer debugging things */
static bool Dump(CommandLine &)
{
pkgCacheFile CacheFile;
pkgCache *Cache = CacheFile.GetPkgCache();
if (unlikely(Cache == NULL))
return false;
std::cout << "Using Versioning System: " << Cache->VS->Label << std::endl;
for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
{
std::cout << "Package: " << P.FullName(true) << std::endl;
for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V)
{
std::cout << " Version: " << V.VerStr() << std::endl;
std::cout << " File: " << V.FileList().File().FileName() << std::endl;
for (pkgCache::DepIterator D = V.DependsList(); D.end() == false; ++D)
std::cout << " Depends: " << D.TargetPkg().FullName(true) << ' ' <<
DeNull(D.TargetVer()) << std::endl;
for (pkgCache::DescIterator D = V.DescriptionList(); D.end() == false; ++D)
{
std::cout << " Description Language: " << D.LanguageCode() << std::endl
<< " File: " << D.FileList().File().FileName() << std::endl
<< " MD5: " << D.md5() << std::endl;
}
}
}
for (pkgCache::PkgFileIterator F = Cache->FileBegin(); F.end() == false; ++F)
{
std::cout << "File: " << F.FileName() << std::endl;
std::cout << " Type: " << F.IndexType() << std::endl;
std::cout << " Size: " << F->Size << std::endl;
std::cout << " ID: " << F->ID << std::endl;
std::cout << " Flags: " << F->Flags << std::endl;
std::cout << " Time: " << TimeRFC1123(F->mtime, true) << std::endl;
std::cout << " Archive: " << DeNull(F.Archive()) << std::endl;
std::cout << " Component: " << DeNull(F.Component()) << std::endl;
std::cout << " Version: " << DeNull(F.Version()) << std::endl;
std::cout << " Origin: " << DeNull(F.Origin()) << std::endl;
std::cout << " Site: " << DeNull(F.Site()) << std::endl;
std::cout << " Label: " << DeNull(F.Label()) << std::endl;
std::cout << " Architecture: " << DeNull(F.Architecture()) << std::endl;
}
return true;
}
/*}}}*/
// DumpAvail - Print out the available list /*{{{*/
// ---------------------------------------------------------------------
/* This is needed to make dpkg --merge happy.. I spent a bit of time to
make this run really fast, perhaps I went a little overboard.. */
static bool DumpAvail(CommandLine &)
{
pkgCacheFile CacheFile;
pkgCache *Cache = CacheFile.GetPkgCache();
if (unlikely(Cache == NULL || CacheFile.BuildPolicy() == false))
return false;
auto const Count = Cache->HeaderP->PackageCount+1;
pkgCache::VerFile **VFList = new pkgCache::VerFile *[Count];
memset(VFList,0,sizeof(*VFList)*Count);
// Map versions that we want to write out onto the VerList array.
for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
{
if (P->VersionList == 0)
continue;
/* Find the proper version to use. If the policy says there are no
possible selections we return the installed version, if available..
This prevents dselect from making it obsolete. */
pkgCache::VerIterator V = CacheFile.GetPolicy()->GetCandidateVer(P);
if (V.end() == true)
{
if (P->CurrentVer == 0)
continue;
V = P.CurrentVer();
}
pkgCache::VerFileIterator VF = V.FileList();
for (; VF.end() == false ; ++VF)
if ((VF.File()->Flags & pkgCache::Flag::NotSource) == 0)
break;
/* Okay, here we have a bit of a problem.. The policy has selected the
currently installed package - however it only exists in the
status file.. We need to write out something or dselect will mark
the package as obsolete! Thus we emit the status file entry, but
below we remove the status line to make it valid for the
available file. However! We only do this if their do exist *any*
non-source versions of the package - that way the dselect obsolete
handling works OK. */
if (VF.end() == true)
{
for (pkgCache::VerIterator Cur = P.VersionList(); Cur.end() != true; ++Cur)
{
for (VF = Cur.FileList(); VF.end() == false; ++VF)
{
if ((VF.File()->Flags & pkgCache::Flag::NotSource) == 0)
{
VF = V.FileList();
break;
}
}
if (VF.end() == false)
break;
}
}
VFList[P->ID] = VF;
}
LocalitySort(VFList,Count,sizeof(*VFList));
std::vector<pkgTagSection::Tag> 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;)
{
pkgCache::PkgFileIterator File(*Cache,(*J)->File + Cache->PkgFileP);
// FIXME: Add support for volatile/with-source files
FileFd PkgF(File.FileName(),FileFd::ReadOnly, FileFd::Extension);
if (_error->PendingError() == true)
break;
/* Write all of the records from this package file, since we
already did locality sorting we can now just seek through the
file in read order. We apply 1 more optimization here, since often
there will be < 1 byte gaps between records (for the \n) we read that
into the next buffer and offset a bit.. */
unsigned long Pos = 0;
for (; *J != 0; J++)
{
if ((*J)->File + Cache->PkgFileP != File)
break;
const pkgCache::VerFile &VF = **J;
// Read the record and then write it out again.
unsigned long Jitter = VF.Offset - Pos;
if (Jitter > 8)
{
if (PkgF.Seek(VF.Offset) == false)
break;
Jitter = 0;
}
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;
if (Tags.Scan(Buffer+Jitter,VF.Size+1) == false ||
Tags.Write(stdoutfd, NULL, RW) == false ||
stdoutfd.Write("\n", 1) == false)
{
_error->Error("Internal Error, Unable to parse a package record");
break;
}
}
else
{
if (stdoutfd.Write(Buffer + Jitter, VF.Size + 1) == false)
break;
}
Pos = VF.Offset + VF.Size;
}
if (_error->PendingError() == true)
break;
}
delete [] Buffer;
delete [] VFList;
return !_error->PendingError();
}
/*}}}*/
// xvcg - Generate a graph for xvcg /*{{{*/
// ---------------------------------------------------------------------
// Code contributed from Junichi Uekawa <dancer@debian.org> on 20 June 2002.
static bool XVcg(CommandLine &CmdL)
{
pkgCacheFile CacheFile;
pkgCache *Cache = CacheFile.GetPkgCache();
if (unlikely(Cache == NULL))
return false;
bool GivenOnly = _config->FindB("APT::Cache::GivenOnly",false);
/* Normal packages are boxes
Pure Provides are triangles
Mixed are diamonds
rhomb are missing packages*/
const char *Shapes[] = {"ellipse","triangle","box","rhomb"};
/* Initialize the list of packages to show.
1 = To Show
2 = To Show no recurse
3 = Emitted no recurse
4 = Emitted
0 = None */
enum States {None=0, ToShow, ToShowNR, DoneNR, Done};
enum TheFlags {ForceNR=(1<<0)};
auto PackageCount = Cache->Head().PackageCount;
unsigned char *Show = new unsigned char[PackageCount];
unsigned char *Flags = new unsigned char[PackageCount];
unsigned char *ShapeMap = new unsigned char[PackageCount];
// Show everything if no arguments given
if (CmdL.FileList[1] == 0)
for (decltype(PackageCount) I = 0; I != PackageCount; ++I)
Show[I] = ToShow;
else
for (decltype(PackageCount) I = 0; I != PackageCount; ++I)
Show[I] = None;
memset(Flags,0,sizeof(*Flags)*PackageCount);
// Map the shapes
for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
{
if (Pkg->VersionList == 0)
{
// Missing
if (Pkg->ProvidesList == 0)
ShapeMap[Pkg->ID] = 0;
else
ShapeMap[Pkg->ID] = 1;
}
else
{
// Normal
if (Pkg->ProvidesList == 0)
ShapeMap[Pkg->ID] = 2;
else
ShapeMap[Pkg->ID] = 3;
}
}
// Load the list of packages from the command line into the show list
APT::CacheSetHelper helper(true, GlobalError::NOTICE);
std::list<APT::CacheSetHelper::PkgModifier> mods;
mods.push_back(APT::CacheSetHelper::PkgModifier(0, ",", APT::CacheSetHelper::PkgModifier::POSTFIX));
mods.push_back(APT::CacheSetHelper::PkgModifier(1, "^", APT::CacheSetHelper::PkgModifier::POSTFIX));
std::map<unsigned short, APT::PackageSet> pkgsets =
APT::PackageSet::GroupedFromCommandLine(CacheFile, CmdL.FileList + 1, mods, 0, helper);
for (APT::PackageSet::const_iterator Pkg = pkgsets[0].begin();
Pkg != pkgsets[0].end(); ++Pkg)
Show[Pkg->ID] = ToShow;
for (APT::PackageSet::const_iterator Pkg = pkgsets[1].begin();
Pkg != pkgsets[1].end(); ++Pkg)
{
Show[Pkg->ID] = ToShow;
Flags[Pkg->ID] |= ForceNR;
}
// Little header
cout << "graph: { title: \"packages\"" << endl <<
"xmax: 700 ymax: 700 x: 30 y: 30" << endl <<
"layout_downfactor: 8" << endl;
bool Act = true;
while (Act == true)
{
Act = false;
for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
{
// See we need to show this package
if (Show[Pkg->ID] == None || Show[Pkg->ID] >= DoneNR)
continue;
//printf ("node: { title: \"%s\" label: \"%s\" }\n", Pkg.Name(), Pkg.Name());
// Colour as done
if (Show[Pkg->ID] == ToShowNR || (Flags[Pkg->ID] & ForceNR) == ForceNR)
{
// Pure Provides and missing packages have no deps!
if (ShapeMap[Pkg->ID] == 0 || ShapeMap[Pkg->ID] == 1)
Show[Pkg->ID] = Done;
else
Show[Pkg->ID] = DoneNR;
}
else
Show[Pkg->ID] = Done;
Act = true;
// No deps to map out
if (Pkg->VersionList == 0 || Show[Pkg->ID] == DoneNR)
continue;
pkgCache::VerIterator Ver = Pkg.VersionList();
for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; ++D)
{
// See if anything can meet this dep
// Walk along the actual package providing versions
bool Hit = false;
pkgCache::PkgIterator DPkg = D.TargetPkg();
for (pkgCache::VerIterator I = DPkg.VersionList();
I.end() == false && Hit == false; ++I)
{
if (Cache->VS->CheckDep(I.VerStr(),D->CompareOp,D.TargetVer()) == true)
Hit = true;
}
// Follow all provides
for (pkgCache::PrvIterator I = DPkg.ProvidesList();
I.end() == false && Hit == false; ++I)
{
if (Cache->VS->CheckDep(I.ProvideVersion(),D->CompareOp,D.TargetVer()) == false)
Hit = true;
}
// Only graph critical deps
if (D.IsCritical() == true)
{
printf ("edge: { sourcename: \"%s\" targetname: \"%s\" class: 2 ",Pkg.FullName(true).c_str(), D.TargetPkg().FullName(true).c_str() );
// Colour the node for recursion
if (Show[D.TargetPkg()->ID] <= DoneNR)
{
/* If a conflicts does not meet anything in the database
then show the relation but do not recurse */
if (Hit == false && D.IsNegative() == true)
{
if (Show[D.TargetPkg()->ID] == None &&
Show[D.TargetPkg()->ID] != ToShow)
Show[D.TargetPkg()->ID] = ToShowNR;
}
else
{
if (GivenOnly == true && Show[D.TargetPkg()->ID] != ToShow)
Show[D.TargetPkg()->ID] = ToShowNR;
else
Show[D.TargetPkg()->ID] = ToShow;
}
}
// Edge colour
switch(D->Type)
{
case pkgCache::Dep::Conflicts:
printf("label: \"conflicts\" color: lightgreen }\n");
break;
case pkgCache::Dep::DpkgBreaks:
printf("label: \"breaks\" color: lightgreen }\n");
break;
case pkgCache::Dep::Obsoletes:
printf("label: \"obsoletes\" color: lightgreen }\n");
break;
case pkgCache::Dep::PreDepends:
printf("label: \"predepends\" color: blue }\n");
break;
default:
printf("}\n");
break;
}
}
}
}
}
/* Draw the box colours after the fact since we can not tell what colour
they should be until everything is finished drawing */
for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
{
if (Show[Pkg->ID] < DoneNR)
continue;
if (Show[Pkg->ID] == DoneNR)
printf("node: { title: \"%s\" label: \"%s\" color: orange shape: %s }\n", Pkg.FullName(true).c_str(), Pkg.FullName(true).c_str(),
Shapes[ShapeMap[Pkg->ID]]);
else
printf("node: { title: \"%s\" label: \"%s\" shape: %s }\n", Pkg.FullName(true).c_str(), Pkg.FullName(true).c_str(),
Shapes[ShapeMap[Pkg->ID]]);
}
delete[] Show;
delete[] Flags;
delete[] ShapeMap;
printf("}\n");
return true;
}
/*}}}*/
// Dotty - Generate a graph for Dotty /*{{{*/
// ---------------------------------------------------------------------
/* Dotty is the graphvis program for generating graphs. It is a fairly
simple queuing algorithm that just writes dependencies and nodes.
http://www.research.att.com/sw/tools/graphviz/ */
static bool Dotty(CommandLine &CmdL)
{
pkgCacheFile CacheFile;
pkgCache *Cache = CacheFile.GetPkgCache();
if (unlikely(Cache == NULL))
return false;
bool GivenOnly = _config->FindB("APT::Cache::GivenOnly",false);
/* Normal packages are boxes
Pure Provides are triangles
Mixed are diamonds
Hexagons are missing packages*/
const char *Shapes[] = {"hexagon","triangle","box","diamond"};
/* Initialize the list of packages to show.
1 = To Show
2 = To Show no recurse
3 = Emitted no recurse
4 = Emitted
0 = None */
enum States {None=0, ToShow, ToShowNR, DoneNR, Done};
enum TheFlags {ForceNR=(1<<0)};
auto PackageCount = Cache->Head().PackageCount;
unsigned char *Show = new unsigned char[PackageCount];
unsigned char *Flags = new unsigned char[PackageCount];
unsigned char *ShapeMap = new unsigned char[PackageCount];
// Show everything if no arguments given
if (CmdL.FileList[1] == 0)
for (decltype(PackageCount) I = 0; I != PackageCount; ++I)
Show[I] = ToShow;
else
for (decltype(PackageCount) I = 0; I != PackageCount; ++I)
Show[I] = None;
memset(Flags,0,sizeof(*Flags)*PackageCount);
// Map the shapes
for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
{
if (Pkg->VersionList == 0)
{
// Missing
if (Pkg->ProvidesList == 0)
ShapeMap[Pkg->ID] = 0;
else
ShapeMap[Pkg->ID] = 1;
}
else
{
// Normal
if (Pkg->ProvidesList == 0)
ShapeMap[Pkg->ID] = 2;
else
ShapeMap[Pkg->ID] = 3;
}
}
// Load the list of packages from the command line into the show list
APT::CacheSetHelper helper(true, GlobalError::NOTICE);
std::list<APT::CacheSetHelper::PkgModifier> mods;
mods.push_back(APT::CacheSetHelper::PkgModifier(0, ",", APT::CacheSetHelper::PkgModifier::POSTFIX));
mods.push_back(APT::CacheSetHelper::PkgModifier(1, "^", APT::CacheSetHelper::PkgModifier::POSTFIX));
std::map<unsigned short, APT::PackageSet> pkgsets =
APT::PackageSet::GroupedFromCommandLine(CacheFile, CmdL.FileList + 1, mods, 0, helper);
for (APT::PackageSet::const_iterator Pkg = pkgsets[0].begin();
Pkg != pkgsets[0].end(); ++Pkg)
Show[Pkg->ID] = ToShow;
for (APT::PackageSet::const_iterator Pkg = pkgsets[1].begin();
Pkg != pkgsets[1].end(); ++Pkg)
{
Show[Pkg->ID] = ToShow;
Flags[Pkg->ID] |= ForceNR;
}
// Little header
printf("digraph packages {\n");
printf("concentrate=true;\n");
printf("size=\"30,40\";\n");
bool Act = true;
while (Act == true)
{
Act = false;
for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
{
// See we need to show this package
if (Show[Pkg->ID] == None || Show[Pkg->ID] >= DoneNR)
continue;
// Colour as done
if (Show[Pkg->ID] == ToShowNR || (Flags[Pkg->ID] & ForceNR) == ForceNR)
{
// Pure Provides and missing packages have no deps!
if (ShapeMap[Pkg->ID] == 0 || ShapeMap[Pkg->ID] == 1)
Show[Pkg->ID] = Done;
else
Show[Pkg->ID] = DoneNR;
}
else
Show[Pkg->ID] = Done;
Act = true;
// No deps to map out
if (Pkg->VersionList == 0 || Show[Pkg->ID] == DoneNR)
continue;
pkgCache::VerIterator Ver = Pkg.VersionList();
for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false; ++D)
{
// See if anything can meet this dep
// Walk along the actual package providing versions
bool Hit = false;
pkgCache::PkgIterator DPkg = D.TargetPkg();
for (pkgCache::VerIterator I = DPkg.VersionList();
I.end() == false && Hit == false; ++I)
{
if (Cache->VS->CheckDep(I.VerStr(),D->CompareOp,D.TargetVer()) == true)
Hit = true;
}
// Follow all provides
for (pkgCache::PrvIterator I = DPkg.ProvidesList();
I.end() == false && Hit == false; ++I)
{
if (Cache->VS->CheckDep(I.ProvideVersion(),D->CompareOp,D.TargetVer()) == false)
Hit = true;
}
// Only graph critical deps
if (D.IsCritical() == true)
{
printf("\"%s\" -> \"%s\"",Pkg.FullName(true).c_str(),D.TargetPkg().FullName(true).c_str());
// Colour the node for recursion
if (Show[D.TargetPkg()->ID] <= DoneNR)
{
/* If a conflicts does not meet anything in the database
then show the relation but do not recurse */
if (Hit == false && D.IsNegative() == true)
{
if (Show[D.TargetPkg()->ID] == None &&
Show[D.TargetPkg()->ID] != ToShow)
Show[D.TargetPkg()->ID] = ToShowNR;
}
else
{
if (GivenOnly == true && Show[D.TargetPkg()->ID] != ToShow)
Show[D.TargetPkg()->ID] = ToShowNR;
else
Show[D.TargetPkg()->ID] = ToShow;
}
}
// Edge colour
switch(D->Type)
{
case pkgCache::Dep::Conflicts:
case pkgCache::Dep::Obsoletes:
case pkgCache::Dep::DpkgBreaks:
printf("[color=springgreen];\n");
break;
case pkgCache::Dep::PreDepends:
printf("[color=blue];\n");
break;
default:
printf(";\n");
break;
}
}
}
}
}
/* Draw the box colours after the fact since we can not tell what colour
they should be until everything is finished drawing */
for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg)
{
if (Show[Pkg->ID] < DoneNR)
continue;
// Orange box for early recursion stoppage
if (Show[Pkg->ID] == DoneNR)
printf("\"%s\" [color=orange,shape=%s];\n",Pkg.FullName(true).c_str(),
Shapes[ShapeMap[Pkg->ID]]);
else
printf("\"%s\" [shape=%s];\n",Pkg.FullName(true).c_str(),
Shapes[ShapeMap[Pkg->ID]]);
}
printf("}\n");
delete[] Show;
delete[] Flags;
delete[] ShapeMap;
return true;
}
/*}}}*/
/* ShowAuto - show automatically installed packages (sorted) {{{*/
static bool ShowAuto(CommandLine &)
{
pkgCacheFile CacheFile;
pkgCache *Cache = CacheFile.GetPkgCache();
pkgDepCache *DepCache = CacheFile.GetDepCache();
if (unlikely(Cache == NULL || DepCache == NULL))
return false;
std::vector<string> packages;
packages.reserve(Cache->HeaderP->PackageCount / 3);
for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
if ((*DepCache)[P].Flags & pkgCache::Flag::Auto)
packages.push_back(P.Name());
std::sort(packages.begin(), packages.end());
for (vector<string>::iterator I = packages.begin(); I != packages.end(); ++I)
cout << *I << "\n";
_error->Notice(_("This command is deprecated. Please use 'apt-mark showauto' instead."));
return true;
}
/*}}}*/
// ShowPkgNames - Show package names /*{{{*/
// ---------------------------------------------------------------------
/* This does a prefix match on the first argument */
static bool ShowPkgNames(CommandLine &CmdL)
{
pkgCacheFile CacheFile;
if (unlikely(CacheFile.BuildCaches(NULL, false) == false))
return false;
pkgCache::GrpIterator I = CacheFile.GetPkgCache()->GrpBegin();
bool const All = _config->FindB("APT::Cache::AllNames","false");
if (CmdL.FileList[1] != 0)
{
for (;I.end() != true; ++I)
{
if (All == false && I->FirstPackage == 0)
continue;
if (I.FindPkg("any")->VersionList == 0)
continue;
if (strncmp(I.Name(),CmdL.FileList[1],strlen(CmdL.FileList[1])) == 0)
cout << I.Name() << endl;
}
return true;
}