summaryrefslogtreecommitdiffstats
path: root/apt-pkg/depcache.cc
diff options
context:
space:
mode:
Diffstat (limited to 'apt-pkg/depcache.cc')
-rw-r--r--apt-pkg/depcache.cc2411
1 files changed, 2411 insertions, 0 deletions
diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
new file mode 100644
index 0000000..d025942
--- /dev/null
+++ b/apt-pkg/depcache.cc
@@ -0,0 +1,2411 @@
+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+/* ######################################################################
+
+ Dependency Cache - Caches Dependency information.
+
+ ##################################################################### */
+ /*}}}*/
+// Include Files /*{{{*/
+#include <config.h>
+
+#include <apt-pkg/algorithms.h>
+#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/cacheset.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/prettyprinters.h>
+#include <apt-pkg/progress.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/tagfile.h>
+#include <apt-pkg/version.h>
+#include <apt-pkg/versionmatch.h>
+
+#include <algorithm>
+#include <iostream>
+#include <iterator>
+#include <list>
+#include <set>
+#include <string>
+#include <utility>
+#include <vector>
+#include <stdio.h>
+#include <string.h>
+
+#include <sys/stat.h>
+
+#include <apti18n.h>
+ /*}}}*/
+
+using std::string;
+
+// helper for kernel autoremoval /*{{{*/
+
+/** \brief Returns \b true for packages matching a regular
+ * expression in APT::NeverAutoRemove.
+ */
+class DefaultRootSetFunc2 : public pkgDepCache::DefaultRootSetFunc
+{
+ std::unique_ptr<APT::CacheFilter::Matcher> Kernels;
+
+ public:
+ DefaultRootSetFunc2(pkgCache *cache) : Kernels(APT::KernelAutoRemoveHelper::GetProtectedKernelsFilter(cache)){};
+ virtual ~DefaultRootSetFunc2(){};
+
+ bool InRootSet(const pkgCache::PkgIterator &pkg) APT_OVERRIDE { return pkg.end() == false && ((*Kernels)(pkg) || DefaultRootSetFunc::InRootSet(pkg)); };
+};
+
+ /*}}}*/
+// helper for Install-Recommends-Sections and Never-MarkAuto-Sections /*{{{*/
+static bool
+ConfigValueInSubTree(const char* SubTree, const char *needle)
+{
+ Configuration::Item const *Opts;
+ Opts = _config->Tree(SubTree);
+ if (Opts != 0 && Opts->Child != 0)
+ {
+ Opts = Opts->Child;
+ for (; Opts != 0; Opts = Opts->Next)
+ {
+ if (Opts->Value.empty() == true)
+ continue;
+ if (strcmp(needle, Opts->Value.c_str()) == 0)
+ return true;
+ }
+ }
+ return false;
+}
+ /*}}}*/
+pkgDepCache::ActionGroup::ActionGroup(pkgDepCache &cache) : /*{{{*/
+ d(NULL), cache(cache), released(false)
+{
+ ++cache.group_level;
+}
+
+void pkgDepCache::ActionGroup::release()
+{
+ if(!released)
+ {
+ if(cache.group_level == 0)
+ std::cerr << "W: Unbalanced action groups, expect badness" << std::endl;
+ else
+ {
+ --cache.group_level;
+
+ if(cache.group_level == 0)
+ cache.MarkAndSweep();
+ }
+
+ released = true;
+ }
+}
+
+pkgDepCache::ActionGroup::~ActionGroup()
+{
+ release();
+}
+ /*}}}*/
+// DepCache::pkgDepCache - Constructors /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+
+struct pkgDepCache::Private
+{
+ std::unique_ptr<InRootSetFunc> inRootSetFunc;
+};
+pkgDepCache::pkgDepCache(pkgCache *const pCache, Policy *const Plcy) : group_level(0), Cache(pCache), PkgState(0), DepState(0),
+ iUsrSize(0), iDownloadSize(0), iInstCount(0), iDelCount(0), iKeepCount(0),
+ iBrokenCount(0), iPolicyBrokenCount(0), iBadCount(0), d(new Private)
+{
+ DebugMarker = _config->FindB("Debug::pkgDepCache::Marker", false);
+ DebugAutoInstall = _config->FindB("Debug::pkgDepCache::AutoInstall", false);
+ delLocalPolicy = 0;
+ LocalPolicy = Plcy;
+ if (LocalPolicy == 0)
+ delLocalPolicy = LocalPolicy = new Policy;
+}
+ /*}}}*/
+// DepCache::~pkgDepCache - Destructor /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+pkgDepCache::~pkgDepCache()
+{
+ delete [] PkgState;
+ delete [] DepState;
+ delete delLocalPolicy;
+ delete d;
+}
+ /*}}}*/
+bool pkgDepCache::CheckConsistency(char const *const msgtag) /*{{{*/
+{
+ auto const OrigPkgState = PkgState;
+ auto const OrigDepState = DepState;
+
+ PkgState = new StateCache[Head().PackageCount];
+ DepState = new unsigned char[Head().DependsCount];
+ memset(PkgState,0,sizeof(*PkgState)*Head().PackageCount);
+ memset(DepState,0,sizeof(*DepState)*Head().DependsCount);
+
+ auto const origUsrSize = iUsrSize;
+ auto const origDownloadSize = iDownloadSize;
+ auto const origInstCount = iInstCount;
+ auto const origDelCount = iDelCount;
+ auto const origKeepCount = iKeepCount;
+ auto const origBrokenCount = iBrokenCount;
+ auto const origPolicyBrokenCount = iPolicyBrokenCount;
+ auto const origBadCount = iBadCount;
+
+ for (PkgIterator I = PkgBegin(); not I.end(); ++I)
+ {
+ auto &State = PkgState[I->ID];
+ auto const &OrigState = OrigPkgState[I->ID];
+ State.iFlags = OrigState.iFlags;
+
+ State.CandidateVer = OrigState.CandidateVer;
+ State.InstallVer = OrigState.InstallVer;
+ State.Mode = OrigState.Mode;
+ State.Update(I,*this);
+ State.Status = OrigState.Status;
+ }
+ PerformDependencyPass(nullptr);
+
+ _error->PushToStack();
+#define APT_CONSISTENCY_CHECK(VAR,STR) \
+ if (orig##VAR != i##VAR) \
+ _error->Warning("Internal Inconsistency in pkgDepCache: " #VAR " " STR " vs " STR " (%s)", i##VAR, orig##VAR, msgtag)
+ APT_CONSISTENCY_CHECK(UsrSize, "%lld");
+ APT_CONSISTENCY_CHECK(DownloadSize, "%lld");
+ APT_CONSISTENCY_CHECK(InstCount, "%lu");
+ APT_CONSISTENCY_CHECK(DelCount, "%lu");
+ APT_CONSISTENCY_CHECK(KeepCount, "%lu");
+ APT_CONSISTENCY_CHECK(BrokenCount, "%lu");
+ APT_CONSISTENCY_CHECK(PolicyBrokenCount, "%lu");
+ APT_CONSISTENCY_CHECK(BadCount, "%lu");
+#undef APT_CONSISTENCY_CHECK
+
+ for (PkgIterator P = PkgBegin(); not P.end(); ++P)
+ {
+ auto const &State = PkgState[P->ID];
+ auto const &OrigState = OrigPkgState[P->ID];
+ if (State.Status != OrigState.Status)
+ _error->Warning("Internal Inconsistency in pkgDepCache: Status of %s is %d vs %d (%s)", P.FullName().c_str(), State.Status, OrigState.Status, msgtag);
+ if (State.NowBroken() != OrigState.NowBroken())
+ _error->Warning("Internal Inconsistency in pkgDepCache: Now broken for %s is %d vs %d (%s)", P.FullName().c_str(), static_cast<int>(State.DepState), static_cast<int>(OrigState.DepState), msgtag);
+ if (State.NowPolicyBroken() != OrigState.NowPolicyBroken())
+ _error->Warning("Internal Inconsistency in pkgDepCache: Now policy broken for %s is %d vs %d (%s)", P.FullName().c_str(), static_cast<int>(State.DepState), static_cast<int>(OrigState.DepState), msgtag);
+ if (State.InstBroken() != OrigState.InstBroken())
+ _error->Warning("Internal Inconsistency in pkgDepCache: Install broken for %s is %d vs %d (%s)", P.FullName().c_str(), static_cast<int>(State.DepState), static_cast<int>(OrigState.DepState), msgtag);
+ if (State.InstPolicyBroken() != OrigState.InstPolicyBroken())
+ _error->Warning("Internal Inconsistency in pkgDepCache: Install broken for %s is %d vs %d (%s)", P.FullName().c_str(), static_cast<int>(State.DepState), static_cast<int>(OrigState.DepState), msgtag);
+ }
+
+ auto inconsistent = _error->PendingError();
+ _error->MergeWithStack();
+
+ delete[] PkgState;
+ delete[] DepState;
+ PkgState = OrigPkgState;
+ DepState = OrigDepState;
+ iUsrSize = origUsrSize;
+ iDownloadSize = origDownloadSize;
+ iInstCount = origInstCount;
+ iDelCount = origDelCount;
+ iKeepCount = origKeepCount;
+ iBrokenCount = origBrokenCount;
+ iPolicyBrokenCount = origPolicyBrokenCount;
+ iBadCount = origBadCount;
+
+ return not inconsistent;
+}
+ /*}}}*/
+// DepCache::Init - Generate the initial extra structures. /*{{{*/
+// ---------------------------------------------------------------------
+/* This allocats the extension buffers and initializes them. */
+bool pkgDepCache::Init(OpProgress * const Prog)
+{
+ // Suppress mark updates during this operation (just in case) and
+ // run a mark operation when Init terminates.
+ ActionGroup actions(*this);
+
+ delete [] PkgState;
+ delete [] DepState;
+ PkgState = new StateCache[Head().PackageCount];
+ DepState = new unsigned char[Head().DependsCount];
+ memset(PkgState,0,sizeof(*PkgState)*Head().PackageCount);
+ memset(DepState,0,sizeof(*DepState)*Head().DependsCount);
+
+ if (Prog != 0)
+ {
+ Prog->OverallProgress(0,2*Head().PackageCount,Head().PackageCount,
+ _("Building dependency tree"));
+ Prog->SubProgress(Head().PackageCount,_("Candidate versions"));
+ }
+
+ /* Set the current state of everything. In this state all of the
+ packages are kept exactly as is. See AllUpgrade */
+ int Done = 0;
+ for (PkgIterator I = PkgBegin(); I.end() != true; ++I, ++Done)
+ {
+ if (Prog != 0 && Done%20 == 0)
+ Prog->Progress(Done);
+
+ // Find the proper cache slot
+ StateCache &State = PkgState[I->ID];
+ State.iFlags = 0;
+
+ // Figure out the install version
+ State.CandidateVer = LocalPolicy->GetCandidateVer(I);
+ State.InstallVer = I.CurrentVer();
+ State.Mode = ModeKeep;
+
+ State.Update(I,*this);
+ }
+
+ if (Prog != 0)
+ {
+ Prog->OverallProgress(Head().PackageCount,2*Head().PackageCount,
+ Head().PackageCount,
+ _("Building dependency tree"));
+ Prog->SubProgress(Head().PackageCount,_("Dependency generation"));
+ }
+
+ Update(Prog);
+
+ if(Prog != 0)
+ Prog->Done();
+
+ return true;
+}
+ /*}}}*/
+bool pkgDepCache::readStateFile(OpProgress * const Prog) /*{{{*/
+{
+ FileFd state_file;
+ string const state = _config->FindFile("Dir::State::extended_states");
+ if(RealFileExists(state)) {
+ state_file.Open(state, FileFd::ReadOnly, FileFd::Extension);
+ off_t const file_size = state_file.Size();
+ if(Prog != NULL)
+ {
+ Prog->Done();
+ Prog->OverallProgress(0, file_size, 1,
+ _("Reading state information"));
+ }
+
+ pkgTagFile tagfile(&state_file);
+ pkgTagSection section;
+ off_t amt = 0;
+ bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
+ while(tagfile.Step(section)) {
+ string const pkgname = section.FindS("Package");
+ string pkgarch = section.FindS("Architecture");
+ if (pkgarch.empty() == true)
+ pkgarch = "any";
+ pkgCache::PkgIterator pkg = Cache->FindPkg(pkgname, pkgarch);
+ // Silently ignore unknown packages and packages with no actual version.
+ if(pkg.end() == true || pkg->VersionList == 0)
+ continue;
+
+ short const reason = section.FindI("Auto-Installed", 0);
+ if(reason > 0)
+ {
+ PkgState[pkg->ID].Flags |= Flag::Auto;
+ if (unlikely(debug_autoremove))
+ std::clog << "Auto-Installed : " << pkg.FullName() << std::endl;
+ if (pkgarch == "any")
+ {
+ pkgCache::GrpIterator G = pkg.Group();
+ for (pkg = G.NextPkg(pkg); pkg.end() != true; pkg = G.NextPkg(pkg))
+ if (pkg->VersionList != 0)
+ PkgState[pkg->ID].Flags |= Flag::Auto;
+ }
+ }
+ amt += section.size();
+ if(Prog != NULL)
+ Prog->OverallProgress(amt, file_size, 1,
+ _("Reading state information"));
+ }
+ if(Prog != NULL)
+ Prog->OverallProgress(file_size, file_size, 1,
+ _("Reading state information"));
+ }
+
+ return true;
+}
+ /*}}}*/
+bool pkgDepCache::writeStateFile(OpProgress * const /*prog*/, bool const InstalledOnly) /*{{{*/
+{
+ bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
+
+ if(debug_autoremove)
+ std::clog << "pkgDepCache::writeStateFile()" << std::endl;
+
+ FileFd StateFile;
+ string const state = _config->FindFile("Dir::State::extended_states");
+ if (CreateAPTDirectoryIfNeeded(_config->FindDir("Dir::State"), flNotFile(state)) == false)
+ return false;
+
+ // if it does not exist, create a empty one
+ if(!RealFileExists(state))
+ {
+ StateFile.Open(state, FileFd::WriteAtomic, FileFd::Extension);
+ StateFile.Close();
+ }
+
+ // open it
+ if (!StateFile.Open(state, FileFd::ReadOnly, FileFd::Extension))
+ return _error->Error(_("Failed to open StateFile %s"),
+ state.c_str());
+
+ FileFd OutFile(state, FileFd::ReadWrite | FileFd::Atomic, FileFd::Extension);
+ if (OutFile.IsOpen() == false || OutFile.Failed() == true)
+ return _error->Error(_("Failed to write temporary StateFile %s"), state.c_str());
+
+ // first merge with the existing sections
+ pkgTagFile tagfile(&StateFile);
+ pkgTagSection section;
+ std::set<string> pkgs_seen;
+ while(tagfile.Step(section)) {
+ string const pkgname = section.FindS("Package");
+ string pkgarch = section.FindS("Architecture");
+ if (pkgarch.empty() == true)
+ pkgarch = "native";
+ // Silently ignore unknown packages and packages with no actual
+ // version.
+ pkgCache::PkgIterator pkg = Cache->FindPkg(pkgname, pkgarch);
+ if(pkg.end() || pkg.VersionList().end())
+ continue;
+ StateCache const &P = PkgState[pkg->ID];
+ bool newAuto = (P.Flags & Flag::Auto);
+ // reset to default (=manual) not installed or now-removed ones if requested
+ if (InstalledOnly && (
+ (pkg->CurrentVer == 0 && P.Mode != ModeInstall) ||
+ (pkg->CurrentVer != 0 && P.Mode == ModeDelete)))
+ newAuto = false;
+ if (newAuto == false)
+ {
+ // The section is obsolete if it contains no other tag
+ auto const count = section.Count();
+ if (count < 2 ||
+ (count == 2 && section.Exists("Auto-Installed")) ||
+ (count == 3 && section.Exists("Auto-Installed") && section.Exists("Architecture")))
+ {
+ if(debug_autoremove)
+ std::clog << "Drop obsolete section with " << count << " fields for " << APT::PrettyPkg(this, pkg) << std::endl;
+ continue;
+ }
+ }
+
+ if(debug_autoremove)
+ std::clog << "Update existing AutoInstall to " << newAuto << " for " << APT::PrettyPkg(this, pkg) << std::endl;
+
+ std::vector<pkgTagSection::Tag> rewrite;
+ rewrite.push_back(pkgTagSection::Tag::Rewrite("Architecture", pkg.Arch()));
+ rewrite.push_back(pkgTagSection::Tag::Rewrite("Auto-Installed", newAuto ? "1" : "0"));
+ section.Write(OutFile, NULL, rewrite);
+ if (OutFile.Write("\n", 1) == false)
+ return false;
+ pkgs_seen.insert(pkg.FullName());
+ }
+
+ // then write the ones we have not seen yet
+ for(pkgCache::PkgIterator pkg=Cache->PkgBegin(); !pkg.end(); ++pkg) {
+ StateCache const &P = PkgState[pkg->ID];
+ if(P.Flags & Flag::Auto) {
+ if (pkgs_seen.find(pkg.FullName()) != pkgs_seen.end()) {
+ if(debug_autoremove)
+ std::clog << "Skipping already written " << APT::PrettyPkg(this, pkg) << std::endl;
+ continue;
+ }
+ // skip not installed ones if requested
+ if (InstalledOnly && (
+ (pkg->CurrentVer == 0 && P.Mode != ModeInstall) ||
+ (pkg->CurrentVer != 0 && P.Mode == ModeDelete)))
+ continue;
+ if(debug_autoremove)
+ std::clog << "Writing new AutoInstall: " << APT::PrettyPkg(this, pkg) << std::endl;
+ std::string stanza = "Package: ";
+ stanza.append(pkg.Name())
+ .append("\nArchitecture: ").append(pkg.Arch())
+ .append("\nAuto-Installed: 1\n\n");
+ if (OutFile.Write(stanza.c_str(), stanza.length()) == false)
+ return false;
+ }
+ }
+ if (StateFile.Failed())
+ {
+ OutFile.OpFail();
+ return false;
+ }
+ if (OutFile.Close() == false)
+ return false;
+ chmod(state.c_str(), 0644);
+ return true;
+}
+ /*}}}*/
+// DepCache::CheckDep - Checks a single dependency /*{{{*/
+// ---------------------------------------------------------------------
+/* This first checks the dependency against the main target package and
+ then walks along the package provides list and checks if each provides
+ will be installed then checks the provides against the dep. Res will be
+ set to the package which was used to satisfy the dep. */
+bool pkgDepCache::CheckDep(DepIterator const &Dep,int const Type,PkgIterator &Res)
+{
+ Res = Dep.TargetPkg();
+
+ /* Check simple depends. A depends -should- never self match but
+ we allow it anyhow because dpkg does. Technically it is a packaging
+ bug. Conflicts may never self match */
+ if (Dep.IsIgnorable(Res) == false)
+ {
+ // Check the base package
+ if (Type == NowVersion)
+ {
+ if (Res->CurrentVer != 0 && Dep.IsSatisfied(Res.CurrentVer()) == true)
+ return true;
+ }
+ else if (Type == InstallVersion)
+ {
+ if (PkgState[Res->ID].InstallVer != 0 &&
+ Dep.IsSatisfied(PkgState[Res->ID].InstVerIter(*this)) == true)
+ return true;
+ }
+ else if (Type == CandidateVersion)
+ if (PkgState[Res->ID].CandidateVer != 0 &&
+ Dep.IsSatisfied(PkgState[Res->ID].CandidateVerIter(*this)) == true)
+ return true;
+ }
+
+ if (Dep->Type == Dep::Obsoletes)
+ return false;
+
+ // Check the providing packages
+ PrvIterator P = Dep.TargetPkg().ProvidesList();
+ for (; P.end() != true; ++P)
+ {
+ if (Dep.IsIgnorable(P) == true)
+ continue;
+
+ // Check if the provides is a hit
+ if (Type == NowVersion)
+ {
+ if (P.OwnerPkg().CurrentVer() != P.OwnerVer())
+ continue;
+ }
+ else if (Type == InstallVersion)
+ {
+ StateCache &State = PkgState[P.OwnerPkg()->ID];
+ if (State.InstallVer != (Version *)P.OwnerVer())
+ continue;
+ }
+ else if (Type == CandidateVersion)
+ {
+ StateCache &State = PkgState[P.OwnerPkg()->ID];
+ if (State.CandidateVer != (Version *)P.OwnerVer())
+ continue;
+ }
+
+ // Compare the versions.
+ if (Dep.IsSatisfied(P) == true)
+ {
+ Res = P.OwnerPkg();
+ return true;
+ }
+ }
+
+ return false;
+}
+ /*}}}*/
+// DepCache::AddSizes - Add the packages sizes to the counters /*{{{*/
+// ---------------------------------------------------------------------
+/* Call with Inverse = true to perform the inverse operation */
+void pkgDepCache::AddSizes(const PkgIterator &Pkg, bool const Inverse)
+{
+ StateCache &P = PkgState[Pkg->ID];
+
+ if (Pkg->VersionList == 0)
+ return;
+
+ if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
+ P.Keep() == true)
+ return;
+
+ // Compute the size data
+ if (P.NewInstall() == true)
+ {
+ if (Inverse == false) {
+ iUsrSize += P.InstVerIter(*this)->InstalledSize;
+ iDownloadSize += P.InstVerIter(*this)->Size;
+ } else {
+ iUsrSize -= P.InstVerIter(*this)->InstalledSize;
+ iDownloadSize -= P.InstVerIter(*this)->Size;
+ }
+ return;
+ }
+
+ // Upgrading
+ if (Pkg->CurrentVer != 0 &&
+ (P.InstallVer != (Version *)Pkg.CurrentVer() ||
+ (P.iFlags & ReInstall) == ReInstall) && P.InstallVer != 0)
+ {
+ if (Inverse == false) {
+ iUsrSize -= Pkg.CurrentVer()->InstalledSize;
+ iUsrSize += P.InstVerIter(*this)->InstalledSize;
+ iDownloadSize += P.InstVerIter(*this)->Size;
+ } else {
+ iUsrSize -= P.InstVerIter(*this)->InstalledSize;
+ iUsrSize += Pkg.CurrentVer()->InstalledSize;
+ iDownloadSize -= P.InstVerIter(*this)->Size;
+ }
+ return;
+ }
+
+ // Reinstall
+ if (Pkg.State() == pkgCache::PkgIterator::NeedsUnpack &&
+ P.Delete() == false)
+ {
+ if (Inverse == false)
+ iDownloadSize += P.InstVerIter(*this)->Size;
+ else
+ iDownloadSize -= P.InstVerIter(*this)->Size;
+ return;
+ }
+
+ // Removing
+ if (Pkg->CurrentVer != 0 && P.InstallVer == 0)
+ {
+ if (Inverse == false)
+ iUsrSize -= Pkg.CurrentVer()->InstalledSize;
+ else
+ iUsrSize += Pkg.CurrentVer()->InstalledSize;
+ return;
+ }
+}
+ /*}}}*/
+// DepCache::AddStates - Add the package to the state counter /*{{{*/
+// ---------------------------------------------------------------------
+/* This routine is tricky to use, you must make sure that it is never
+ called twice for the same package. This means the Remove/Add section
+ should be as short as possible and not encompass any code that will
+ call Remove/Add itself. Remember, dependencies can be circular so
+ while processing a dep for Pkg it is possible that Add/Remove
+ will be called on Pkg */
+void pkgDepCache::AddStates(const PkgIterator &Pkg, bool const Invert)
+{
+ signed char const Add = (Invert == false) ? 1 : -1;
+ StateCache &State = PkgState[Pkg->ID];
+
+ // The Package is broken (either minimal dep or policy dep)
+ if ((State.DepState & DepInstMin) != DepInstMin)
+ iBrokenCount += Add;
+ if ((State.DepState & DepInstPolicy) != DepInstPolicy)
+ iPolicyBrokenCount += Add;
+
+ // Bad state
+ if (Pkg.State() != PkgIterator::NeedsNothing)
+ iBadCount += Add;
+
+ // Not installed
+ if (Pkg->CurrentVer == 0)
+ {
+ if (State.Mode == ModeDelete &&
+ (State.iFlags & Purge) == Purge && Pkg.Purge() == false)
+ iDelCount += Add;
+
+ if (State.Mode == ModeInstall)
+ iInstCount += Add;
+ return;
+ }
+
+ // Installed, no upgrade
+ if (State.Status == 0)
+ {
+ if (State.Mode == ModeDelete)
+ iDelCount += Add;
+ else
+ if ((State.iFlags & ReInstall) == ReInstall)
+ iInstCount += Add;
+ return;
+ }
+
+ // Alll 3 are possible
+ if (State.Mode == ModeDelete)
+ iDelCount += Add;
+ else if (State.Mode == ModeKeep)
+ iKeepCount += Add;
+ else if (State.Mode == ModeInstall)
+ iInstCount += Add;
+}
+ /*}}}*/
+// DepCache::BuildGroupOrs - Generate the Or group dep data /*{{{*/
+// ---------------------------------------------------------------------
+/* The or group results are stored in the last item of the or group. This
+ allows easy detection of the state of a whole or'd group. */
+void pkgDepCache::BuildGroupOrs(VerIterator const &V)
+{
+ unsigned char Group = 0;
+ for (DepIterator D = V.DependsList(); D.end() != true; ++D)
+ {
+ // Build the dependency state.
+ unsigned char &State = DepState[D->ID];
+
+ /* Invert for Conflicts. We have to do this twice to get the
+ right sense for a conflicts group */
+ if (D.IsNegative() == true)
+ State = ~State;
+
+ // Add to the group if we are within an or..
+ State &= 0x7;
+ Group |= State;
+ State |= Group << 3;
+ if ((D->CompareOp & Dep::Or) != Dep::Or)
+ Group = 0;
+
+ // Invert for Conflicts
+ if (D.IsNegative() == true)
+ State = ~State;
+ }
+}
+ /*}}}*/
+// DepCache::VersionState - Perform a pass over a dependency list /*{{{*/
+// ---------------------------------------------------------------------
+/* This is used to run over a dependency list and determine the dep
+ state of the list, filtering it through both a Min check and a Policy
+ check. The return result will have SetMin/SetPolicy low if a check
+ fails. It uses the DepState cache for it's computations. */
+unsigned char pkgDepCache::VersionState(DepIterator D, unsigned char const Check,
+ unsigned char const SetMin,
+ unsigned char const SetPolicy) const
+{
+ unsigned char Dep = 0xFF;
+ while (D.end() != true)
+ {
+ // the last or-dependency has the state of all previous or'ed
+ DepIterator Start, End;
+ D.GlobOr(Start, End);
+ // ignore if we are called with Dep{Install,…} or DepG{Install,…}
+ // the later would be more correct, but the first is what we get
+ unsigned char const State = DepState[End->ID] | (DepState[End->ID] >> 3);
+
+ // Minimum deps that must be satisfied to have a working package
+ if (Start.IsCritical() == true)
+ {
+ if ((State & Check) != Check)
+ return Dep &= ~(SetMin | SetPolicy);
+ }
+ // Policy deps that must be satisfied to install the package
+ else if (IsImportantDep(Start) == true &&
+ (State & Check) != Check)
+ Dep &= ~SetPolicy;
+ }
+ return Dep;
+}
+ /*}}}*/
+// DepCache::DependencyState - Compute the 3 results for a dep /*{{{*/
+// ---------------------------------------------------------------------
+/* This is the main dependency computation bit. It computes the 3 main
+ results for a dependency: Now, Install and Candidate. Callers must
+ invert the result if dealing with conflicts. */
+unsigned char pkgDepCache::DependencyState(DepIterator const &D)
+{
+ unsigned char State = 0;
+
+ if (CheckDep(D,NowVersion) == true)
+ State |= DepNow;
+ if (CheckDep(D,InstallVersion) == true)
+ State |= DepInstall;
+ if (CheckDep(D,CandidateVersion) == true)
+ State |= DepCVer;
+
+ return State;
+}
+ /*}}}*/
+// DepCache::UpdateVerState - Compute the Dep member of the state /*{{{*/
+// ---------------------------------------------------------------------
+/* This determines the combined dependency representation of a package
+ for its two states now and install. This is done by using the pre-generated
+ dependency information. */
+void pkgDepCache::UpdateVerState(PkgIterator const &Pkg)
+{
+ // Empty deps are always true
+ StateCache &State = PkgState[Pkg->ID];
+ State.DepState = 0xFF;
+
+ // Check the Current state
+ if (Pkg->CurrentVer != 0)
+ {
+ DepIterator D = Pkg.CurrentVer().DependsList();
+ State.DepState &= VersionState(D,DepNow,DepNowMin,DepNowPolicy);
+ }
+
+ /* Check the candidate state. We do not compare against the whole as
+ a candidate state but check the candidate version against the
+ install states */
+ if (State.CandidateVer != 0)
+ {
+ DepIterator D = State.CandidateVerIter(*this).DependsList();
+ State.DepState &= VersionState(D,DepInstall,DepCandMin,DepCandPolicy);
+ }
+
+ // Check target state which can only be current or installed
+ if (State.InstallVer != 0)
+ {
+ DepIterator D = State.InstVerIter(*this).DependsList();
+ State.DepState &= VersionState(D,DepInstall,DepInstMin,DepInstPolicy);
+ }
+}
+ /*}}}*/
+// DepCache::Update - Figure out all the state information /*{{{*/
+// ---------------------------------------------------------------------
+/* This will figure out the state of all the packages and all the
+ dependencies based on the current policy. */
+void pkgDepCache::PerformDependencyPass(OpProgress * const Prog)
+{
+ iUsrSize = 0;
+ iDownloadSize = 0;
+ iInstCount = 0;
+ iDelCount = 0;
+ iKeepCount = 0;
+ iBrokenCount = 0;
+ iPolicyBrokenCount = 0;
+ iBadCount = 0;
+
+ int Done = 0;
+ for (PkgIterator I = PkgBegin(); I.end() != true; ++I, ++Done)
+ {
+ if (Prog != 0 && Done%20 == 0)
+ Prog->Progress(Done);
+ for (VerIterator V = I.VersionList(); V.end() != true; ++V)
+ {
+ unsigned char Group = 0;
+
+ for (DepIterator D = V.DependsList(); D.end() != true; ++D)
+ {
+ // Build the dependency state.
+ unsigned char &State = DepState[D->ID];
+ State = DependencyState(D);
+
+ // Add to the group if we are within an or..
+ Group |= State;
+ State |= Group << 3;
+ if ((D->CompareOp & Dep::Or) != Dep::Or)
+ Group = 0;
+
+ // Invert for Conflicts
+ if (D.IsNegative() == true)
+ State = ~State;
+ }
+ }
+
+ // Compute the package dependency state and size additions
+ AddSizes(I);
+ UpdateVerState(I);
+ AddStates(I);
+ }
+ if (Prog != 0)
+ Prog->Progress(Done);
+}
+void pkgDepCache::Update(OpProgress * const Prog)
+{
+ PerformDependencyPass(Prog);
+ readStateFile(Prog);
+}
+ /*}}}*/
+// DepCache::Update - Update the deps list of a package /*{{{*/
+// ---------------------------------------------------------------------
+/* This is a helper for update that only does the dep portion of the scan.
+ It is mainly meant to scan reverse dependencies. */
+void pkgDepCache::Update(DepIterator D)
+{
+ // Update the reverse deps
+ for (;D.end() != true; ++D)
+ {
+ unsigned char &State = DepState[D->ID];
+ State = DependencyState(D);
+
+ // Invert for Conflicts
+ if (D.IsNegative() == true)
+ State = ~State;
+
+ RemoveStates(D.ParentPkg());
+ BuildGroupOrs(D.ParentVer());
+ UpdateVerState(D.ParentPkg());
+ AddStates(D.ParentPkg());
+ }
+}
+ /*}}}*/
+// DepCache::Update - Update the related deps of a package /*{{{*/
+// ---------------------------------------------------------------------
+/* This is called whenever the state of a package changes. It updates
+ all cached dependencies related to this package. */
+void pkgDepCache::Update(PkgIterator const &Pkg)
+{
+ // Recompute the dep of the package
+ RemoveStates(Pkg);
+ UpdateVerState(Pkg);
+ AddStates(Pkg);
+
+ // Update the reverse deps
+ Update(Pkg.RevDependsList());
+
+ // Update the provides map for the current ver
+ auto const CurVer = Pkg.CurrentVer();
+ if (not CurVer.end())
+ for (PrvIterator P = CurVer.ProvidesList(); not P.end(); ++P)
+ Update(P.ParentPkg().RevDependsList());
+
+ // Update the provides map for the candidate ver
+ auto const CandVer = PkgState[Pkg->ID].CandidateVerIter(*this);
+ if (not CandVer.end() && CandVer != CurVer)
+ for (PrvIterator P = CandVer.ProvidesList(); not P.end(); ++P)
+ Update(P.ParentPkg().RevDependsList());
+}
+ /*}}}*/
+// DepCache::IsModeChangeOk - check if it is ok to change the mode /*{{{*/
+// ---------------------------------------------------------------------
+/* this is used by all Mark methods on the very first line to check sanity
+ and prevents mode changes for packages on hold for example.
+ If you want to check Mode specific stuff you can use the virtual public
+ Is<Mode>Ok methods instead */
+static char const* PrintMode(char const mode)
+{
+ switch (mode)
+ {
+ case pkgDepCache::ModeInstall: return "Install";
+ case pkgDepCache::ModeKeep: return "Keep";
+ case pkgDepCache::ModeDelete: return "Delete";
+ case pkgDepCache::ModeGarbage: return "Garbage";
+ default: return "UNKNOWN";
+ }
+}
+static bool IsModeChangeOk(pkgDepCache &Cache, pkgDepCache::ModeList const mode, pkgCache::PkgIterator const &Pkg,
+ unsigned long const Depth, bool const FromUser, bool const DebugMarker)
+{
+ // we are not trying to hard…
+ if (unlikely(Depth > 100))
+ return false;
+
+ // general sanity
+ if (unlikely(Pkg.end() == true || Pkg->VersionList == 0))
+ return false;
+
+ // the user is always right
+ if (FromUser == true)
+ return true;
+
+ auto &P = Cache[Pkg];
+ // not changing the mode is obviously also fine as we might want to call
+ // e.g. MarkInstall multiple times with different arguments for the same package
+ if (P.Mode == mode)
+ return true;
+
+ // if previous state was set by user only user can reset it
+ if ((P.iFlags & pkgDepCache::Protected) == pkgDepCache::Protected)
+ {
+ if (unlikely(DebugMarker == true))
+ std::clog << OutputInDepth(Depth) << "Ignore Mark" << PrintMode(mode)
+ << " of " << APT::PrettyPkg(&Cache, Pkg) << " as its mode (" << PrintMode(P.Mode)
+ << ") is protected" << std::endl;
+ return false;
+ }
+ // enforce dpkg holds
+ else if (mode != pkgDepCache::ModeKeep && Pkg->SelectedState == pkgCache::State::Hold &&
+ _config->FindB("APT::Ignore-Hold",false) == false)
+ {
+ if (unlikely(DebugMarker == true))
+ std::clog << OutputInDepth(Depth) << "Hold prevents Mark" << PrintMode(mode)
+ << " of " << APT::PrettyPkg(&Cache, Pkg) << std::endl;
+ return false;
+ }
+
+ return true;
+}
+ /*}}}*/
+// DepCache::MarkKeep - Put the package in the keep state /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgDepCache::MarkKeep(PkgIterator const &Pkg, bool Soft, bool FromUser,
+ unsigned long Depth)
+{
+ if (not IsModeChangeOk(*this, ModeKeep, Pkg, Depth, FromUser, DebugMarker))
+ return false;
+
+ /* Reject an attempt to keep a non-source broken installed package, those
+ must be upgraded */
+ if (Pkg.State() == PkgIterator::NeedsUnpack &&
+ Pkg.CurrentVer().Downloadable() == false)
+ return false;
+
+ /* We changed the soft state all the time so the UI is a bit nicer
+ to use */
+ StateCache &P = PkgState[Pkg->ID];
+
+ // Check that it is not already kept
+ if (P.Mode == ModeKeep)
+ return true;
+
+ if (Soft == true)
+ P.iFlags |= AutoKept;
+ else
+ P.iFlags &= ~AutoKept;
+
+ ActionGroup group(*this);
+
+#if 0 // resetting the autoflag here means we lose the
+ // auto-mark information if a user selects a package for removal
+ // but changes his mind then and sets it for keep again
+ // - this makes sense as default when all Garbage dependencies
+ // are automatically marked for removal (as aptitude does).
+ // setting a package for keep then makes it no longer autoinstalled
+ // for all other use-case this action is rather surprising
+ if(FromUser && !P.Marked)
+ P.Flags &= ~Flag::Auto;
+#endif
+
+ if (DebugMarker == true)
+ std::clog << OutputInDepth(Depth) << "MarkKeep " << APT::PrettyPkg(this, Pkg) << " FU=" << FromUser << std::endl;
+
+ RemoveSizes(Pkg);
+ RemoveStates(Pkg);
+
+ P.Mode = ModeKeep;
+ if (Pkg->CurrentVer == 0)
+ P.InstallVer = 0;
+ else
+ P.InstallVer = Pkg.CurrentVer();
+
+ AddStates(Pkg);
+ Update(Pkg);
+ AddSizes(Pkg);
+
+ return true;
+}
+ /*}}}*/
+// DepCache::MarkDelete - Put the package in the delete state /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgDepCache::MarkDelete(PkgIterator const &Pkg, bool rPurge,
+ unsigned long Depth, bool FromUser)
+{
+ if (not IsModeChangeOk(*this, ModeDelete, Pkg, Depth, FromUser, DebugMarker))
+ return false;
+
+ StateCache &P = PkgState[Pkg->ID];
+
+ // Check that it is not already marked for delete
+ if ((P.Mode == ModeDelete || P.InstallVer == 0) &&
+ (Pkg.Purge() == true || rPurge == false))
+ return true;
+
+ // check if we are allowed to remove the package
+ if (IsDeleteOk(Pkg,rPurge,Depth,FromUser) == false)
+ return false;
+
+ P.iFlags &= ~(AutoKept | Purge);
+ if (rPurge == true)
+ P.iFlags |= Purge;
+
+ ActionGroup group(*this);
+
+ if (FromUser == false)
+ {
+ VerIterator const PV = P.InstVerIter(*this);
+ if (PV.end() == false)
+ {
+ // removed metapackages mark their dependencies as manual to prevent in "desktop depends browser, texteditor"
+ // the removal of browser to suggest the removal of desktop and texteditor.
+ // We ignore the auto-bit here as we can't deal with metapackage cascardes otherwise.
+ // We do not check for or-groups here as we don't know which package takes care of
+ // providing the feature the user likes e.g.: browser1 | browser2 | browser3
+ // Temporary removals are effected by this as well, which is bad, but unlikely in practice
+ bool const PinNeverMarkAutoSection = (PV->Section != 0 && ConfigValueInSubTree("APT::Never-MarkAuto-Sections", PV.Section()));
+ if (PinNeverMarkAutoSection)
+ {
+ for (DepIterator D = PV.DependsList(); D.end() != true; ++D)
+ {
+ if (D.IsMultiArchImplicit() == true || D.IsNegative() == true || IsImportantDep(D) == false)
+ continue;
+
+ pkgCacheFile CacheFile(this);
+ APT::VersionList verlist = APT::VersionList::FromDependency(CacheFile, D, APT::CacheSetHelper::INSTALLED);
+ for (auto const &V : verlist)
+ {
+ PkgIterator const DP = V.ParentPkg();
+ if(DebugAutoInstall == true)
+ std::clog << OutputInDepth(Depth) << "Setting " << DP.FullName(false) << " NOT as auto-installed (direct "
+ << D.DepType() << " of " << Pkg.FullName(false) << " which is in APT::Never-MarkAuto-Sections)" << std::endl;
+
+ MarkAuto(DP, false);
+ }
+ }
+ }
+ }
+ }
+
+ if (DebugMarker == true)
+ std::clog << OutputInDepth(Depth) << (rPurge ? "MarkPurge " : "MarkDelete ") << APT::PrettyPkg(this, Pkg) << " FU=" << FromUser << std::endl;
+
+ RemoveSizes(Pkg);
+ RemoveStates(Pkg);
+
+ if (Pkg->CurrentVer == 0 && (Pkg.Purge() == true || rPurge == false))
+ P.Mode = ModeKeep;
+ else
+ P.Mode = ModeDelete;
+ P.InstallVer = 0;
+
+ AddStates(Pkg);
+ Update(Pkg);
+ AddSizes(Pkg);
+
+ return true;
+}
+ /*}}}*/
+// DepCache::IsDeleteOk - check if it is ok to remove this package /*{{{*/
+// ---------------------------------------------------------------------
+/* The default implementation tries to prevent deletion of install requests.
+ dpkg holds are enforced by the private IsModeChangeOk */
+bool pkgDepCache::IsDeleteOk(PkgIterator const &Pkg,bool rPurge,
+ unsigned long Depth, bool FromUser)
+{
+ return IsDeleteOkProtectInstallRequests(Pkg, rPurge, Depth, FromUser);
+}
+bool pkgDepCache::IsDeleteOkProtectInstallRequests(PkgIterator const &Pkg,
+ bool const /*rPurge*/, unsigned long const Depth, bool const FromUser)
+{
+ if (FromUser == false && Pkg->CurrentVer == 0)
+ {
+ StateCache &P = PkgState[Pkg->ID];
+ if (P.InstallVer != 0 && P.Status == 2 && (P.Flags & Flag::Auto) != Flag::Auto)
+ {
+ if (DebugMarker == true)
+ std::clog << OutputInDepth(Depth) << "Manual install request prevents MarkDelete of " << APT::PrettyPkg(this, Pkg) << std::endl;
+ return false;
+ }
+ }
+ return true;
+}
+ /*}}}*/
+struct CompareProviders /*{{{*/
+{
+ pkgDepCache const &Cache;
+ pkgCache::PkgIterator const Pkg;
+ explicit CompareProviders(pkgDepCache const &pCache, pkgCache::DepIterator const &Dep) : Cache{pCache}, Pkg{Dep.TargetPkg()} {}
+ bool operator() (pkgCache::VerIterator const &AV, pkgCache::VerIterator const &BV)
+ {
+ pkgCache::PkgIterator const A = AV.ParentPkg();
+ pkgCache::PkgIterator const B = BV.ParentPkg();
+ // Deal with protected first as if they don't work we usually have a problem
+ if (Cache[A].Protect() != Cache[B].Protect())
+ return Cache[A].Protect();
+ // Prefer MA:same packages if other architectures for it are installed
+ if ((AV->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same ||
+ (BV->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
+ {
+ bool instA = false;
+ if ((AV->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
+ {
+ pkgCache::GrpIterator Grp = A.Group();
+ for (pkgCache::PkgIterator P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+ if (P->CurrentVer != 0)
+ {
+ instA = true;
+ break;
+ }
+ }
+ bool instB = false;
+ if ((BV->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
+ {
+ pkgCache::GrpIterator Grp = B.Group();
+ for (pkgCache::PkgIterator P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+ {
+ if (P->CurrentVer != 0)
+ {
+ instB = true;
+ break;
+ }
+ }
+ }
+ if (instA != instB)
+ return instA;
+ }
+ if ((A->CurrentVer == 0 || B->CurrentVer == 0) && A->CurrentVer != B->CurrentVer)
+ return A->CurrentVer != 0;
+ // Prefer packages in the same group as the target; e.g. foo:i386, foo:amd64
+ if (A->Group != B->Group)
+ {
+ if (A->Group == Pkg->Group && B->Group != Pkg->Group)
+ return true;
+ else if (B->Group == Pkg->Group && A->Group != Pkg->Group)
+ return false;
+ }
+ // we like essentials
+ if ((A->Flags & pkgCache::Flag::Essential) != (B->Flags & pkgCache::Flag::Essential))
+ {
+ if ((A->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
+ return true;
+ else if ((B->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
+ return false;
+ }
+ if ((A->Flags & pkgCache::Flag::Important) != (B->Flags & pkgCache::Flag::Important))
+ {
+ if ((A->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important)
+ return true;
+ else if ((B->Flags & pkgCache::Flag::Important) == pkgCache::Flag::Important)
+ return false;
+ }
+ // prefer native architecture
+ if (strcmp(A.Arch(), B.Arch()) != 0)
+ {
+ if (strcmp(A.Arch(), A.Cache()->NativeArch()) == 0)
+ return true;
+ else if (strcmp(B.Arch(), B.Cache()->NativeArch()) == 0)
+ return false;
+ std::vector<std::string> archs = APT::Configuration::getArchitectures();
+ for (std::vector<std::string>::const_iterator a = archs.begin(); a != archs.end(); ++a)
+ if (*a == A.Arch())
+ return true;
+ else if (*a == B.Arch())
+ return false;
+ }
+ // higher priority seems like a good idea
+ if (AV->Priority != BV->Priority)
+ return AV->Priority < BV->Priority;
+ // unable to decide…
+ return A->ID > B->ID;
+ }
+};
+ /*}}}*/
+bool pkgDepCache::MarkInstall_StateChange(pkgCache::PkgIterator const &Pkg, bool AutoInst, bool FromUser) /*{{{*/
+{
+ bool AlwaysMarkAsAuto = _config->FindB("APT::Get::Mark-Auto", false) == true;
+ auto &P = (*this)[Pkg];
+ if (P.Protect() && P.InstallVer == P.CandidateVer)
+ return true;
+
+ P.iFlags &= ~pkgDepCache::AutoKept;
+
+ /* Target the candidate version and remove the autoflag. We reset the
+ autoflag below if this was called recursively. Otherwise the user
+ should have the ability to de-auto a package by changing its state */
+ RemoveSizes(Pkg);
+ RemoveStates(Pkg);
+
+ P.Mode = pkgDepCache::ModeInstall;
+ P.InstallVer = P.CandidateVer;
+
+ if(FromUser && !AlwaysMarkAsAuto)
+ {
+ // Set it to manual if it's a new install or already installed,
+ // but only if its not marked by the autoremover (aptitude depend on this behavior)
+ // or if we do automatic installation (aptitude never does it)
+ if(P.Status == 2 || (Pkg->CurrentVer != 0 && (AutoInst == true || P.Marked == false)))
+ P.Flags &= ~pkgCache::Flag::Auto;
+ }
+ else
+ {
+ // Set it to auto if this is a new install.
+ if(P.Status == 2)
+ P.Flags |= pkgCache::Flag::Auto;
+ }
+ if (P.CandidateVer == (pkgCache::Version *)Pkg.CurrentVer())
+ P.Mode = pkgDepCache::ModeKeep;
+
+ AddStates(Pkg);
+ Update(Pkg);
+ AddSizes(Pkg);
+ return true;
+}
+ /*}}}*/
+static bool MarkInstall_DiscardCandidate(pkgDepCache &Cache, pkgCache::PkgIterator const &Pkg) /*{{{*/
+{
+ auto &State = Cache[Pkg];
+ State.CandidateVer = State.InstallVer;
+ auto const oldStatus = State.Status;
+ State.Update(Pkg, Cache);
+ State.Status = oldStatus;
+ return true;
+}
+ /*}}}*/
+bool pkgDepCache::MarkInstall_DiscardInstall(pkgCache::PkgIterator const &Pkg) /*{{{*/
+{
+ StateCache &State = PkgState[Pkg->ID];
+ if (State.Mode == ModeKeep && State.InstallVer == State.CandidateVer && State.CandidateVer == Pkg.CurrentVer())
+ return true;
+ RemoveSizes(Pkg);
+ RemoveStates(Pkg);
+ if (Pkg->CurrentVer != 0)
+ State.InstallVer = Pkg.CurrentVer();
+ else
+ State.InstallVer = nullptr;
+ State.Mode = ModeKeep;
+ AddStates(Pkg);
+ Update(Pkg);
+ AddSizes(Pkg);
+ return MarkInstall_DiscardCandidate(*this, Pkg);
+}
+ /*}}}*/
+static bool MarkInstall_CollectDependencies(pkgDepCache const &Cache, pkgCache::VerIterator const &PV, std::vector<pkgCache::DepIterator> &toInstall, std::vector<pkgCache::DepIterator> &toRemove) /*{{{*/
+{
+ auto const propagateProctected = Cache[PV.ParentPkg()].Protect();
+ for (auto Dep = PV.DependsList(); not Dep.end();)
+ {
+ auto const Start = Dep;
+ // check if an installed package satisfies the dependency (and get the extend of the or-group)
+ bool foundSolution = false;
+ for (bool LastOR = true; not Dep.end() && LastOR; ++Dep)
+ {
+ LastOR = (Dep->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or;
+ if ((Cache[Dep] & pkgDepCache::DepInstall) == pkgDepCache::DepInstall)
+ foundSolution = true;
+ }
+ if (foundSolution && not propagateProctected)
+ continue;
+
+ /* Check if this dep should be consider for install.
+ (Pre-)Depends, Conflicts and Breaks for sure.
+ Recommends & Suggests depending on configuration */
+ if (not Cache.IsImportantDep(Start))
+ continue;
+
+ if (Start.IsNegative())
+ {
+ if (Start->Type != pkgCache::Dep::Obsoletes)
+ toRemove.push_back(Start);
+ }
+ else
+ toInstall.push_back(Start);
+ }
+ return true;
+}
+ /*}}}*/
+static APT::VersionVector getAllPossibleSolutions(pkgDepCache &Cache, pkgCache::DepIterator Start, pkgCache::DepIterator const &End, APT::CacheSetHelper::VerSelector const selector, bool const sorted) /*{{{*/
+{
+ pkgCacheFile CacheFile{&Cache};
+ APT::VersionVector toUpgrade, toNewInstall;
+ do
+ {
+ APT::VersionVector verlist = APT::VersionVector::FromDependency(CacheFile, Start, selector);
+ if (not sorted)
+ {
+ std::move(verlist.begin(), verlist.end(), std::back_inserter(toUpgrade));
+ continue;
+ }
+ std::sort(verlist.begin(), verlist.end(), CompareProviders{Cache, Start});
+ for (auto &&Ver : verlist)
+ {
+ auto P = Ver.ParentPkg();
+ if (P->CurrentVer != 0)
+ toUpgrade.emplace_back(std::move(Ver));
+ else
+ toNewInstall.emplace_back(std::move(Ver));
+ }
+ } while (Start++ != End);
+ if (toUpgrade.empty())
+ toUpgrade = std::move(toNewInstall);
+ else
+ std::move(toNewInstall.begin(), toNewInstall.end(), std::back_inserter(toUpgrade));
+
+ if (not sorted)
+ std::sort(toUpgrade.begin(), toUpgrade.end(), [](pkgCache::VerIterator const &A, pkgCache::VerIterator const &B) { return A->ID < B->ID; });
+ toUpgrade.erase(std::unique(toUpgrade.begin(), toUpgrade.end()), toUpgrade.end());
+
+ if (not End.IsNegative())
+ toUpgrade.erase(std::remove_if(toUpgrade.begin(), toUpgrade.end(), [&Cache](pkgCache::VerIterator const &V) {
+ auto const P = V.ParentPkg();
+ auto const &State = Cache[P];
+ return State.Protect() && (State.Delete() || (State.Keep() && P->CurrentVer == 0));
+ }),
+ toUpgrade.end());
+
+ return toUpgrade;
+}
+ /*}}}*/
+static bool MarkInstall_MarkDeleteForNotUpgradeable(pkgDepCache &Cache, bool const DebugAutoInstall, pkgCache::VerIterator const &PV, unsigned long const Depth, pkgCache::PkgIterator const &Pkg, bool const propagateProctected, APT::PackageVector &delayedRemove)/*{{{*/
+{
+ auto &State = Cache[Pkg];
+ if (not propagateProctected)
+ {
+ if (State.Delete())
+ return true;
+ if(DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << " Delayed Removing: " << Pkg.FullName() << " as upgrade is not an option for " << PV.ParentPkg().FullName() << " (" << PV.VerStr() << ")\n";
+ if (not IsModeChangeOk(Cache, pkgDepCache::ModeDelete, Pkg, Depth, false, DebugAutoInstall) ||
+ not Cache.IsDeleteOk(Pkg, false, Depth, false))
+ return false;
+ delayedRemove.push_back(Pkg);
+ return true;
+ }
+
+ if (not State.Delete())
+ {
+ if(DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << " Removing: " << Pkg.FullName() << " as upgrade is not an option for " << PV.ParentPkg().FullName() << " (" << PV.VerStr() << ")\n";
+ if (not Cache.MarkDelete(Pkg, false, Depth + 1, false))
+ return false;
+ }
+ MarkInstall_DiscardCandidate(Cache, Pkg);
+ Cache.MarkProtected(Pkg);
+ return true;
+}
+ /*}}}*/
+static bool MarkInstall_RemoveConflictsIfNotUpgradeable(pkgDepCache &Cache, bool const DebugAutoInstall, pkgCache::VerIterator const &PV, unsigned long Depth, std::vector<pkgCache::DepIterator> &toRemove, APT::PackageVector &toUpgrade, APT::PackageVector &delayedRemove, bool const propagateProctected, bool const FromUser) /*{{{*/
+{
+ /* Negative dependencies have no or-group
+ If the candidate is effected try to keep current and discard candidate
+ If the current is effected try upgrading to candidate or remove it */
+ bool failedToRemoveSomething = false;
+ APT::PackageVector badCandidate;
+ for (auto const &D : toRemove)
+ {
+ for (auto const &Ver : getAllPossibleSolutions(Cache, D, D, APT::CacheSetHelper::CANDIDATE, true))
+ {
+ auto const Pkg = Ver.ParentPkg();
+ auto &State = Cache[Pkg];
+ if (State.CandidateVer != Ver)
+ continue;
+ if (Pkg.CurrentVer() != Ver)
+ {
+ if (State.Install() && not Cache.MarkKeep(Pkg, false, false, Depth))
+ {
+ failedToRemoveSomething = true;
+ if (not propagateProctected && not FromUser)
+ break;
+ }
+ else if (propagateProctected)
+ {
+ MarkInstall_DiscardCandidate(Cache, Pkg);
+ if (Pkg->CurrentVer == 0)
+ Cache.MarkProtected(Pkg);
+ }
+ else
+ badCandidate.push_back(Pkg);
+ }
+ else if (not MarkInstall_MarkDeleteForNotUpgradeable(Cache, DebugAutoInstall, PV, Depth, Pkg, propagateProctected, delayedRemove))
+ {
+ failedToRemoveSomething = true;
+ if (not propagateProctected && not FromUser)
+ break;
+ }
+ }
+ if (failedToRemoveSomething && not propagateProctected && not FromUser)
+ break;
+ for (auto const &Ver : getAllPossibleSolutions(Cache, D, D, APT::CacheSetHelper::INSTALLED, true))
+ {
+ auto const Pkg = Ver.ParentPkg();
+ auto &State = Cache[Pkg];
+ if (State.CandidateVer != Ver && State.CandidateVer != nullptr &&
+ std::find(badCandidate.cbegin(), badCandidate.cend(), Pkg) == badCandidate.end())
+ toUpgrade.push_back(Pkg);
+ else if (State.CandidateVer == Pkg.CurrentVer())
+ ; // already done in the first loop above
+ else if (not MarkInstall_MarkDeleteForNotUpgradeable(Cache, DebugAutoInstall, PV, Depth, Pkg, propagateProctected, delayedRemove))
+ {
+ failedToRemoveSomething = true;
+ if (not propagateProctected && not FromUser)
+ break;
+ }
+ }
+ if (failedToRemoveSomething && not propagateProctected && not FromUser)
+ break;
+ }
+ toRemove.clear();
+ return not failedToRemoveSomething;
+}
+ /*}}}*/
+static bool MarkInstall_UpgradeOrRemoveConflicts(pkgDepCache &Cache, bool const DebugAutoInstall, unsigned long Depth, bool const ForceImportantDeps, APT::PackageVector &toUpgrade, bool const propagateProctected, bool const FromUser) /*{{{*/
+{
+ bool failedToRemoveSomething = false;
+ for (auto const &InstPkg : toUpgrade)
+ if (not Cache[InstPkg].Install() && not Cache.MarkInstall(InstPkg, true, Depth + 1, false, ForceImportantDeps))
+ {
+ if (DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << " Removing: " << InstPkg.FullName() << " as upgrade is not possible\n";
+ if (not Cache.MarkDelete(InstPkg, false, Depth + 1, false))
+ {
+ failedToRemoveSomething = true;
+ if (not propagateProctected && not FromUser)
+ break;
+ }
+ else if (propagateProctected)
+ Cache.MarkProtected(InstPkg);
+ }
+ toUpgrade.clear();
+ return not failedToRemoveSomething;
+}
+ /*}}}*/
+static bool MarkInstall_InstallDependencies(pkgDepCache &Cache, bool const DebugAutoInstall, bool const DebugMarker, pkgCache::PkgIterator const &Pkg, unsigned long Depth, bool const ForceImportantDeps, std::vector<pkgCache::DepIterator> &toInstall, APT::PackageVector *const toMoveAuto, bool const propagateProctected, bool const FromUser) /*{{{*/
+{
+ auto const IsSatisfiedByInstalled = [&](auto &D) { return (Cache[pkgCache::DepIterator{Cache, &D}] & pkgDepCache::DepInstall) == pkgDepCache::DepInstall; };
+ bool failedToInstallSomething = false;
+ for (auto &&Dep : toInstall)
+ {
+ auto const Copy = Dep;
+ pkgCache::DepIterator Start, End;
+ Dep.GlobOr(Start, End);
+ bool foundSolution = std::any_of(Start, Dep, IsSatisfiedByInstalled);
+ if (foundSolution && not propagateProctected)
+ continue;
+ bool const IsCriticalDep = Start.IsCritical();
+ if (foundSolution)
+ {
+ // try propagating protected to this satisfied dependency
+ if (not IsCriticalDep)
+ continue;
+ auto const possibleSolutions = getAllPossibleSolutions(Cache, Start, End, APT::CacheSetHelper::CANDANDINST, false);
+ if (possibleSolutions.size() != 1)
+ continue;
+ auto const InstPkg = possibleSolutions.begin().ParentPkg();
+ if (Cache[InstPkg].Protect())
+ continue;
+ Cache.MarkProtected(InstPkg);
+ if (not Cache.MarkInstall(InstPkg, true, Depth + 1, false, ForceImportantDeps))
+ failedToInstallSomething = true;
+ continue;
+ }
+
+ /* Check if any ImportantDep() (but not Critical) were added
+ * since we installed the package. Also check for deps that
+ * were satisfied in the past: for instance, if a version
+ * restriction in a Recommends was tightened, upgrading the
+ * package should follow that Recommends rather than causing the
+ * dependency to be removed. (bug #470115)
+ */
+ if (Pkg->CurrentVer != 0 && not ForceImportantDeps && not IsCriticalDep)
+ {
+ bool isNewImportantDep = true;
+ bool isPreviouslySatisfiedImportantDep = false;
+ for (pkgCache::DepIterator D = Pkg.CurrentVer().DependsList(); D.end() != true; ++D)
+ {
+ //FIXME: Should we handle or-group better here?
+ // We do not check if the package we look for is part of the same or-group
+ // we might find while searching, but could that really be a problem?
+ if (D.IsCritical() || not Cache.IsImportantDep(D) ||
+ Start.TargetPkg() != D.TargetPkg())
+ continue;
+
+ isNewImportantDep = false;
+
+ while ((D->CompareOp & pkgCache::Dep::Or) != 0)
+ ++D;
+
+ isPreviouslySatisfiedImportantDep = ((Cache[D] & pkgDepCache::DepGNow) != 0);
+ if (isPreviouslySatisfiedImportantDep)
+ break;
+ }
+
+ if (isNewImportantDep)
+ {
+ if (DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << "new important dependency: "
+ << Start.TargetPkg().FullName() << '\n';
+ }
+ else if (isPreviouslySatisfiedImportantDep)
+ {
+ if (DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << "previously satisfied important dependency on "
+ << Start.TargetPkg().FullName() << '\n';
+ }
+ else
+ {
+ if (DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << "ignore old unsatisfied important dependency on "
+ << Start.TargetPkg().FullName() << '\n';
+ continue;
+ }
+ }
+
+ auto const possibleSolutions = getAllPossibleSolutions(Cache, Start, End, APT::CacheSetHelper::CANDIDATE, true);
+ for (auto const &InstVer : possibleSolutions)
+ {
+ auto const InstPkg = InstVer.ParentPkg();
+ if (Cache[InstPkg].CandidateVer != InstVer)
+ continue;
+ if (DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << "Installing " << InstPkg.FullName()
+ << " as " << End.DepType() << " of " << Pkg.FullName() << '\n';
+ if (propagateProctected && IsCriticalDep && possibleSolutions.size() == 1)
+ {
+ if (not Cache.MarkInstall(InstPkg, false, Depth + 1, false, ForceImportantDeps))
+ continue;
+ Cache.MarkProtected(InstPkg);
+ }
+ if (not Cache.MarkInstall(InstPkg, true, Depth + 1, false, ForceImportantDeps))
+ continue;
+
+ if (toMoveAuto != nullptr && InstPkg->CurrentVer == 0)
+ toMoveAuto->push_back(InstPkg);
+
+ foundSolution = true;
+ break;
+ }
+ if (DebugMarker && not foundSolution)
+ std::clog << OutputInDepth(Depth+1) << APT::PrettyDep(&Cache, Copy) << " can't be satisfied! (dep)\n";
+ if (not foundSolution && IsCriticalDep)
+ {
+ failedToInstallSomething = true;
+ if (not propagateProctected && not FromUser)
+ break;
+ }
+ }
+ toInstall.clear();
+ return not failedToInstallSomething;
+}
+ /*}}}*/
+// DepCache::MarkInstall - Put the package in the install state /*{{{*/
+bool pkgDepCache::MarkInstall(PkgIterator const &Pkg, bool AutoInst,
+ unsigned long Depth, bool FromUser,
+ bool ForceImportantDeps)
+{
+ StateCache &P = PkgState[Pkg->ID];
+ if (P.Protect() && P.Keep() && P.CandidateVer != nullptr && P.CandidateVer == Pkg.CurrentVer())
+ ; // we are here to mark our dependencies as protected, no state is changed
+ else if (not IsModeChangeOk(*this, ModeInstall, Pkg, Depth, FromUser, DebugMarker))
+ return false;
+
+
+ // See if there is even any possible installation candidate
+ if (P.CandidateVer == 0)
+ return false;
+
+ // Check that it is not already marked for install and that it can be installed
+ if (not P.Protect() && not P.InstPolicyBroken() && not P.InstBroken())
+ {
+ if (P.CandidateVer == Pkg.CurrentVer())
+ {
+ if (P.InstallVer == 0)
+ return MarkKeep(Pkg, false, FromUser, Depth + 1);
+ return true;
+ }
+ else if (P.Mode == ModeInstall)
+ return true;
+ }
+
+ // check if we are allowed to install the package
+ if (not IsInstallOk(Pkg, AutoInst, Depth, FromUser))
+ return false;
+
+ ActionGroup group(*this);
+ if (FromUser && not MarkInstall_StateChange(Pkg, AutoInst, FromUser))
+ return false;
+
+ bool const AutoSolve = AutoInst && _config->Find("APT::Solver", "internal") == "internal";
+ bool const failEarly = not P.Protect() && not FromUser;
+ bool hasFailed = false;
+
+ std::vector<pkgCache::DepIterator> toInstall, toRemove;
+ APT::PackageVector toUpgrade, delayedRemove;
+ if (AutoSolve)
+ {
+ VerIterator const PV = P.CandidateVerIter(*this);
+ if (unlikely(PV.end()))
+ return false;
+ if (not MarkInstall_CollectDependencies(*this, PV, toInstall, toRemove))
+ return false;
+
+ if (not MarkInstall_RemoveConflictsIfNotUpgradeable(*this, DebugAutoInstall, PV, Depth, toRemove, toUpgrade, delayedRemove, P.Protect(), FromUser))
+ {
+ if (failEarly)
+ return false;
+ hasFailed = true;
+ }
+ }
+
+ if (not FromUser && not MarkInstall_StateChange(Pkg, AutoInst, FromUser))
+ return false;
+
+ if (not AutoSolve)
+ return not hasFailed;
+
+ if (DebugMarker)
+ std::clog << OutputInDepth(Depth) << "MarkInstall " << APT::PrettyPkg(this, Pkg) << " FU=" << FromUser << '\n';
+
+ class ScopedProtected
+ {
+ pkgDepCache::StateCache &P;
+ bool const already;
+
+ public:
+ ScopedProtected(pkgDepCache::StateCache &p) : P{p}, already{P.Protect()}
+ {
+ if (not already)
+ P.iFlags |= Protected;
+ }
+ ~ScopedProtected()
+ {
+ if (not already)
+ P.iFlags &= (~Protected);
+ }
+ operator bool() noexcept { return already; }
+ } propagateProctected{PkgState[Pkg->ID]};
+
+ if (not MarkInstall_UpgradeOrRemoveConflicts(*this, DebugAutoInstall, Depth, ForceImportantDeps, toUpgrade, propagateProctected, FromUser))
+ {
+ if (failEarly)
+ {
+ MarkInstall_DiscardInstall(Pkg);
+ return false;
+ }
+ hasFailed = true;
+ }
+
+ bool const MoveAutoBitToDependencies = [&]() {
+ VerIterator const PV = P.InstVerIter(*this);
+ if (unlikely(PV.end()))
+ return false;
+ if (PV->Section == 0 || (P.Flags & Flag::Auto) == Flag::Auto)
+ return false;
+ VerIterator const CurVer = Pkg.CurrentVer();
+ if (not CurVer.end() && CurVer->Section != 0 && strcmp(CurVer.Section(), PV.Section()) != 0)
+ {
+ bool const CurVerInMoveSection = ConfigValueInSubTree("APT::Move-Autobit-Sections", CurVer.Section());
+ bool const InstVerInMoveSection = ConfigValueInSubTree("APT::Move-Autobit-Sections", PV.Section());
+ return (not CurVerInMoveSection && InstVerInMoveSection);
+ }
+ return false;
+ }();
+
+ APT::PackageVector toMoveAuto;
+ if (not MarkInstall_InstallDependencies(*this, DebugAutoInstall, DebugMarker, Pkg, Depth, ForceImportantDeps, toInstall,
+ MoveAutoBitToDependencies ? &toMoveAuto : nullptr, propagateProctected, FromUser))
+ {
+ if (failEarly)
+ {
+ MarkInstall_DiscardInstall(Pkg);
+ return false;
+ }
+ hasFailed = true;
+ }
+
+ for (auto const &R : delayedRemove)
+ {
+ if (not MarkDelete(R, false, Depth, false))
+ {
+ if (failEarly)
+ {
+ MarkInstall_DiscardInstall(Pkg);
+ return false;
+ }
+ hasFailed = true;
+ }
+ }
+
+ if (MoveAutoBitToDependencies)
+ {
+ if (DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << "Setting " << Pkg.FullName(false) << " as auto-installed, moving manual to its dependencies" << std::endl;
+ MarkAuto(Pkg, true);
+ for (auto const &InstPkg : toMoveAuto)
+ {
+ if (DebugAutoInstall)
+ std::clog << OutputInDepth(Depth) << "Setting " << InstPkg.FullName(false) << " NOT as auto-installed (dependency"
+ << " of " << Pkg.FullName(false) << " which is manual and in APT::Move-Autobit-Sections)\n";
+ MarkAuto(InstPkg, false);
+ }
+ }
+ return not hasFailed;
+}
+ /*}}}*/
+// DepCache::IsInstallOk - check if it is ok to install this package /*{{{*/
+// ---------------------------------------------------------------------
+/* The default implementation checks if the installation of an M-A:same
+ package would lead us into a version-screw and if so forbids it.
+ dpkg holds are enforced by the private IsModeChangeOk */
+bool pkgDepCache::IsInstallOk(PkgIterator const &Pkg,bool AutoInst,
+ unsigned long Depth, bool FromUser)
+{
+ return IsInstallOkMultiArchSameVersionSynced(Pkg,AutoInst, Depth, FromUser) &&
+ IsInstallOkDependenciesSatisfiableByCandidates(Pkg,AutoInst, Depth, FromUser);
+}
+bool pkgDepCache::IsInstallOkMultiArchSameVersionSynced(PkgIterator const &Pkg,
+ bool const /*AutoInst*/, unsigned long const Depth, bool const FromUser)
+{
+ if (FromUser == true) // as always: user is always right
+ return true;
+
+ // if we have checked before and it was okay, it will still be okay
+ if (PkgState[Pkg->ID].Mode == ModeInstall &&
+ PkgState[Pkg->ID].InstallVer == PkgState[Pkg->ID].CandidateVer)
+ return true;
+
+ // ignore packages with none-M-A:same candidates
+ VerIterator const CandVer = PkgState[Pkg->ID].CandidateVerIter(*this);
+ if (unlikely(CandVer.end() == true) || CandVer == Pkg.CurrentVer() ||
+ (CandVer->MultiArch & pkgCache::Version::Same) != pkgCache::Version::Same)
+ return true;
+
+ GrpIterator const Grp = Pkg.Group();
+ for (PkgIterator P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+ {
+ // not installed or self-check: fine by definition
+ if (P->CurrentVer == 0 || P == Pkg)
+ continue;
+
+ // not having a candidate or being in sync
+ // (simple string-compare as stuff like '1' == '0:1-0' can't happen here)
+ VerIterator CV = PkgState[P->ID].CandidateVerIter(*this);
+ if (CV.end() == true || strcmp(CandVer.VerStr(), CV.VerStr()) == 0)
+ continue;
+
+ // packages losing M-A:same can be out-of-sync
+ if ((CV->MultiArch & pkgCache::Version::Same) != pkgCache::Version::Same)
+ continue;
+
+ // not downloadable means the package is obsolete, so allow out-of-sync
+ if (CV.Downloadable() == false)
+ continue;
+
+ PkgState[Pkg->ID].iFlags |= AutoKept;
+ if (unlikely(DebugMarker == true))
+ std::clog << OutputInDepth(Depth) << "Ignore MarkInstall of " << APT::PrettyPkg(this, Pkg)
+ << " as it is not in sync with its M-A:same sibling " << APT::PrettyPkg(this, P)
+ << " (" << CandVer.VerStr() << " != " << CV.VerStr() << ")" << std::endl;
+ return false;
+ }
+
+ return true;
+}
+bool pkgDepCache::IsInstallOkDependenciesSatisfiableByCandidates(PkgIterator const &Pkg,
+ bool const AutoInst, unsigned long const Depth, bool const /*FromUser*/)
+{
+ if (AutoInst == false)
+ return true;
+
+ VerIterator const CandVer = PkgState[Pkg->ID].CandidateVerIter(*this);
+ if (unlikely(CandVer.end() == true) || CandVer == Pkg.CurrentVer())
+ return true;
+
+ for (DepIterator Dep = CandVer.DependsList(); Dep.end() != true;)
+ {
+ DepIterator Start = Dep;
+ bool foundSolution = false;
+ unsigned Ors = 0;
+ // Is it possible to statisfy this dependency?
+ for (bool LastOR = true; not Dep.end() && LastOR; ++Dep, ++Ors)
+ {
+ LastOR = (Dep->CompareOp & Dep::Or) == Dep::Or;
+
+ if ((DepState[Dep->ID] & (DepInstall | DepCVer)) != 0)
+ foundSolution = true;
+ }
+
+ if (foundSolution || not Start.IsCritical() || Start.IsNegative())
+ continue;
+
+ if (DebugAutoInstall == true)
+ std::clog << OutputInDepth(Depth) << APT::PrettyDep(this, Start) << " can't be satisfied!" << std::endl;
+
+ // the dependency is critical, but can't be installed, so discard the candidate
+ // as the problemresolver will trip over it otherwise trying to install it (#735967)
+ StateCache &State = PkgState[Pkg->ID];
+ if (not State.Protect())
+ {
+ if (Pkg->CurrentVer != 0)
+ SetCandidateVersion(Pkg.CurrentVer());
+ else
+ State.CandidateVer = nullptr;
+ if (not State.Delete())
+ {
+ State.Mode = ModeKeep;
+ State.Update(Pkg, *this);
+ }
+ }
+ return false;
+ }
+
+ return true;
+}
+ /*}}}*/
+// DepCache::SetReInstall - Set the reinstallation flag /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgDepCache::SetReInstall(PkgIterator const &Pkg,bool To)
+{
+ if (unlikely(Pkg.end() == true))
+ return;
+
+ APT::PackageList pkglist;
+ if (Pkg->CurrentVer != 0 &&
+ (Pkg.CurrentVer()-> MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
+ {
+ pkgCache::GrpIterator Grp = Pkg.Group();
+ for (pkgCache::PkgIterator P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+ {
+ if (P->CurrentVer != 0)
+ pkglist.insert(P);
+ }
+ }
+ else
+ pkglist.insert(Pkg);
+
+ ActionGroup group(*this);
+
+ for (APT::PackageList::const_iterator Pkg = pkglist.begin(); Pkg != pkglist.end(); ++Pkg)
+ {
+ RemoveSizes(Pkg);
+ RemoveStates(Pkg);
+
+ StateCache &P = PkgState[Pkg->ID];
+ if (To == true)
+ P.iFlags |= ReInstall;
+ else
+ P.iFlags &= ~ReInstall;
+
+ AddStates(Pkg);
+ AddSizes(Pkg);
+ }
+}
+ /*}}}*/
+pkgCache::VerIterator pkgDepCache::GetCandidateVersion(PkgIterator const &Pkg)/*{{{*/
+{
+ return PkgState[Pkg->ID].CandidateVerIter(*this);
+}
+ /*}}}*/
+// DepCache::SetCandidateVersion - Change the candidate version /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgDepCache::SetCandidateVersion(VerIterator TargetVer)
+{
+ pkgCache::PkgIterator Pkg = TargetVer.ParentPkg();
+ StateCache &P = PkgState[Pkg->ID];
+
+ if (P.CandidateVer == TargetVer)
+ return;
+
+ ActionGroup group(*this);
+
+ RemoveSizes(Pkg);
+ RemoveStates(Pkg);
+
+ if (P.CandidateVer == P.InstallVer && P.Install() == true)
+ P.InstallVer = (Version *)TargetVer;
+ P.CandidateVer = (Version *)TargetVer;
+ P.Update(Pkg,*this);
+
+ AddStates(Pkg);
+ Update(Pkg);
+ AddSizes(Pkg);
+
+}
+ /*}}}*/
+// DepCache::SetCandidateRelease - Change the candidate version /*{{{*/
+// ---------------------------------------------------------------------
+/* changes the candidate of a package and walks over all its dependencies
+ to check if it needs to change the candidate of the dependency, too,
+ to reach a installable versionstate */
+bool pkgDepCache::SetCandidateRelease(pkgCache::VerIterator TargetVer,
+ std::string const &TargetRel)
+{
+ std::list<std::pair<pkgCache::VerIterator, pkgCache::VerIterator> > Changed;
+ return SetCandidateRelease(TargetVer, TargetRel, Changed);
+}
+bool pkgDepCache::SetCandidateRelease(pkgCache::VerIterator TargetVer,
+ std::string const &TargetRel,
+ std::list<std::pair<pkgCache::VerIterator, pkgCache::VerIterator> > &Changed)
+{
+ ActionGroup group(*this);
+ SetCandidateVersion(TargetVer);
+
+ if (TargetRel == "installed" || TargetRel == "candidate") // both doesn't make sense in this context
+ return true;
+
+ pkgVersionMatch Match(TargetRel, pkgVersionMatch::Release);
+ // save the position of the last element we will not undo - if we have to
+ std::list<std::pair<pkgCache::VerIterator, pkgCache::VerIterator> >::iterator newChanged = --(Changed.end());
+
+ for (pkgCache::DepIterator D = TargetVer.DependsList(); D.end() == false; ++D)
+ {
+ if (D->Type != pkgCache::Dep::PreDepends && D->Type != pkgCache::Dep::Depends &&
+ ((D->Type != pkgCache::Dep::Recommends && D->Type != pkgCache::Dep::Suggests) ||
+ IsImportantDep(D) == false))
+ continue;
+
+ // walk over an or-group and check if we need to do anything
+ // for simpilicity no or-group is handled as a or-group including one dependency
+ pkgCache::DepIterator Start = D;
+ bool itsFine = false;
+ for (bool stillOr = true; stillOr == true; ++Start)
+ {
+ stillOr = (Start->CompareOp & Dep::Or) == Dep::Or;
+ pkgCache::PkgIterator const P = Start.TargetPkg();
+ // virtual packages can't be a solution
+ if (P.end() == true || (P->ProvidesList == 0 && P->VersionList == 0))
+ continue;
+ // if its already installed, check if this one is good enough
+ pkgCache::VerIterator const Now = P.CurrentVer();
+ if (Now.end() == false && Start.IsSatisfied(Now))
+ {
+ itsFine = true;
+ break;
+ }
+ pkgCache::VerIterator const Cand = PkgState[P->ID].CandidateVerIter(*this);
+ // no versioned dependency - but is it installable?
+ if (Start.TargetVer() == 0 || Start.TargetVer()[0] == '\0')
+ {
+ // Check if one of the providers is installable
+ if (P->ProvidesList != 0)
+ {
+ pkgCache::PrvIterator Prv = P.ProvidesList();
+ for (; Prv.end() == false; ++Prv)
+ {
+ pkgCache::VerIterator const C = PkgState[Prv.OwnerPkg()->ID].CandidateVerIter(*this);
+ if (C.end() == true || C != Prv.OwnerVer() ||
+ (VersionState(C.DependsList(), DepInstall, DepCandMin, DepCandPolicy) & DepCandMin) != DepCandMin)
+ continue;
+ break;
+ }
+ if (Prv.end() == true)
+ continue;
+ }
+ // no providers, so check if we have an installable candidate version
+ else if (Cand.end() == true ||
+ (VersionState(Cand.DependsList(), DepInstall, DepCandMin, DepCandPolicy) & DepCandMin) != DepCandMin)
+ continue;
+ itsFine = true;
+ break;
+ }
+ if (Cand.end() == true)
+ continue;
+ // check if the current candidate is enough for the versioned dependency - and installable?
+ if (Start.IsSatisfied(Cand) == true &&
+ (VersionState(Cand.DependsList(), DepInstall, DepCandMin, DepCandPolicy) & DepCandMin) == DepCandMin)
+ {
+ itsFine = true;
+ break;
+ }
+ }
+
+ if (itsFine == true) {
+ // something in the or-group was fine, skip all other members
+ for (; (D->CompareOp & Dep::Or) == Dep::Or; ++D);
+ continue;
+ }
+
+ // walk again over the or-group and check each if a candidate switch would help
+ itsFine = false;
+ for (bool stillOr = true; stillOr == true; ++D)
+ {
+ stillOr = (D->CompareOp & Dep::Or) == Dep::Or;
+ // changing candidate will not help if the dependency is not versioned
+ if (D.TargetVer() == 0 || D.TargetVer()[0] == '\0')
+ {
+ if (stillOr == true)
+ continue;
+ break;
+ }
+
+ pkgCache::VerIterator V;
+ if (TargetRel == "newest")
+ V = D.TargetPkg().VersionList();
+ else
+ V = Match.Find(D.TargetPkg());
+
+ // check if the version from this release could satisfy the dependency
+ if (V.end() == true || D.IsSatisfied(V) == false)
+ {
+ if (stillOr == true)
+ continue;
+ break;
+ }
+
+ pkgCache::VerIterator oldCand = PkgState[D.TargetPkg()->ID].CandidateVerIter(*this);
+ if (V == oldCand)
+ {
+ // Do we already touched this Version? If so, their versioned dependencies are okay, no need to check again
+ for (std::list<std::pair<pkgCache::VerIterator, pkgCache::VerIterator> >::const_iterator c = Changed.begin();
+ c != Changed.end(); ++c)
+ {
+ if (c->first->ParentPkg != V->ParentPkg)
+ continue;
+ itsFine = true;
+ break;
+ }
+ }
+
+ if (itsFine == false)
+ {
+ // change the candidate
+ Changed.push_back(make_pair(V, TargetVer));
+ if (SetCandidateRelease(V, TargetRel, Changed) == false)
+ {
+ if (stillOr == false)
+ break;
+ // undo the candidate changing
+ SetCandidateVersion(oldCand);
+ Changed.pop_back();
+ continue;
+ }
+ itsFine = true;
+ }
+
+ // something in the or-group was fine, skip all other members
+ for (; (D->CompareOp & Dep::Or) == Dep::Or; ++D);
+ break;
+ }
+
+ if (itsFine == false && (D->Type == pkgCache::Dep::PreDepends || D->Type == pkgCache::Dep::Depends))
+ {
+ // undo all changes which aren't lead to a solution
+ for (std::list<std::pair<pkgCache::VerIterator, pkgCache::VerIterator> >::const_iterator c = ++newChanged;
+ c != Changed.end(); ++c)
+ SetCandidateVersion(c->first);
+ Changed.erase(newChanged, Changed.end());
+ return false;
+ }
+ }
+ return true;
+}
+ /*}}}*/
+// DepCache::MarkAuto - set the Auto flag for a package /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+void pkgDepCache::MarkAuto(const PkgIterator &Pkg, bool Auto)
+{
+ StateCache &state = PkgState[Pkg->ID];
+
+ ActionGroup group(*this);
+
+ if(Auto)
+ state.Flags |= Flag::Auto;
+ else
+ state.Flags &= ~Flag::Auto;
+}
+ /*}}}*/
+// StateCache::Update - Compute the various static display things /*{{{*/
+// ---------------------------------------------------------------------
+/* This is called whenever the Candidate version changes. */
+void pkgDepCache::StateCache::Update(PkgIterator Pkg,pkgCache &Cache)
+{
+ // Some info
+ VerIterator Ver = CandidateVerIter(Cache);
+
+ // Use a null string or the version string
+ if (Ver.end() == true)
+ CandVersion = "";
+ else
+ CandVersion = Ver.VerStr();
+
+ // Find the current version
+ if (Pkg->CurrentVer != 0)
+ CurVersion = Pkg.CurrentVer().VerStr();
+ else
+ CurVersion = "";
+
+ // Figure out if its up or down or equal
+ if (Pkg->CurrentVer == 0 || Pkg->VersionList == 0 || CandidateVer == 0)
+ Status = 2;
+ else
+ Status = Ver.CompareVer(Pkg.CurrentVer());
+}
+ /*}}}*/
+// Policy::GetCandidateVer - Returns the Candidate install version /*{{{*/
+// ---------------------------------------------------------------------
+/* The default just returns the highest available version that is not
+ a source and automatic. */
+pkgCache::VerIterator pkgDepCache::Policy::GetCandidateVer(PkgIterator const &Pkg)
+{
+ /* Not source/not automatic versions cannot be a candidate version
+ unless they are already installed */
+ VerIterator Last;
+
+ for (VerIterator I = Pkg.VersionList(); I.end() == false; ++I)
+ {
+ if (Pkg.CurrentVer() == I)
+ return I;
+
+ for (VerFileIterator J = I.FileList(); J.end() == false; ++J)
+ {
+ if (J.File().Flagged(Flag::NotSource))
+ continue;
+
+ /* Stash the highest version of a not-automatic source, we use it
+ if there is nothing better */
+ if (J.File().Flagged(Flag::NotAutomatic) ||
+ J.File().Flagged(Flag::ButAutomaticUpgrades))
+ {
+ if (Last.end() == true)
+ Last = I;
+ continue;
+ }
+
+ return I;
+ }
+ }
+
+ return Last;
+}
+ /*}}}*/
+// Policy::IsImportantDep - True if the dependency is important /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgDepCache::Policy::IsImportantDep(DepIterator const &Dep) const
+{
+ if(Dep.IsCritical())
+ return true;
+ else if(Dep->Type == pkgCache::Dep::Recommends)
+ {
+ if (InstallRecommends)
+ return true;
+ // we support a special mode to only install-recommends for certain
+ // sections
+ // FIXME: this is a meant as a temporary solution until the
+ // recommends are cleaned up
+ const char *sec = Dep.ParentVer().Section();
+ if (sec && ConfigValueInSubTree("APT::Install-Recommends-Sections", sec))
+ return true;
+ }
+ else if(Dep->Type == pkgCache::Dep::Suggests)
+ return InstallSuggests;
+
+ return false;
+}
+ /*}}}*/
+// Policy::GetPriority - Get the priority of the package pin /*{{{*/
+APT_PURE signed short pkgDepCache::Policy::GetPriority(pkgCache::PkgIterator const &/*Pkg*/)
+{ return 0; }
+APT_PURE signed short pkgDepCache::Policy::GetPriority(pkgCache::VerIterator const &/*Ver*/, bool /*ConsiderFiles*/)
+{ return 0; }
+APT_PURE signed short pkgDepCache::Policy::GetPriority(pkgCache::PkgFileIterator const &/*File*/)
+{ return 0; }
+ /*}}}*/
+pkgDepCache::InRootSetFunc *pkgDepCache::GetRootSetFunc() /*{{{*/
+{
+ DefaultRootSetFunc *f = new DefaultRootSetFunc2(&GetCache());
+ if (f->wasConstructedSuccessfully())
+ return f;
+ else
+ {
+ delete f;
+ return NULL;
+ }
+}
+
+pkgDepCache::InRootSetFunc *pkgDepCache::GetCachedRootSetFunc()
+{
+ if (d->inRootSetFunc == nullptr)
+ d->inRootSetFunc.reset(GetRootSetFunc());
+ return d->inRootSetFunc.get();
+}
+ /*}}}*/
+bool pkgDepCache::MarkFollowsRecommends()
+{
+ return _config->FindB("APT::AutoRemove::RecommendsImportant", true);
+}
+
+bool pkgDepCache::MarkFollowsSuggests()
+{
+ return _config->FindB("APT::AutoRemove::SuggestsImportant", true);
+}
+
+// pkgDepCache::MarkRequired - the main mark algorithm /*{{{*/
+static bool IsPkgInBoringState(pkgCache::PkgIterator const &Pkg, pkgDepCache::StateCache const * const PkgState)
+{
+ if (Pkg->CurrentVer == 0)
+ {
+ if (PkgState[Pkg->ID].Keep())
+ return true;
+ }
+ else
+ {
+ if (PkgState[Pkg->ID].Delete())
+ return true;
+ }
+ return false;
+}
+bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
+{
+ if (_config->Find("APT::Solver", "internal") != "internal")
+ return true;
+
+ bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
+
+ // init the states
+ auto const PackagesCount = Head().PackageCount;
+ for(auto i = decltype(PackagesCount){0}; i < PackagesCount; ++i)
+ {
+ PkgState[i].Marked = false;
+ PkgState[i].Garbage = false;
+ }
+ if (debug_autoremove)
+ for(PkgIterator p = PkgBegin(); !p.end(); ++p)
+ if(PkgState[p->ID].Flags & Flag::Auto)
+ std::clog << "AutoDep: " << p.FullName() << std::endl;
+
+ bool const follow_recommends = MarkFollowsRecommends();
+ bool const follow_suggests = MarkFollowsSuggests();
+
+ // do the mark part, this is the core bit of the algorithm
+ for (PkgIterator P = PkgBegin(); !P.end(); ++P)
+ {
+ if (PkgState[P->ID].Marked || IsPkgInBoringState(P, PkgState))
+ continue;
+
+ const char *reason = nullptr;
+
+ if ((PkgState[P->ID].Flags & Flag::Auto) == 0)
+ reason = "Manual-Installed";
+ else if (P->Flags & Flag::Essential)
+ reason = "Essential";
+ else if (P->Flags & Flag::Important)
+ reason = "Important";
+ else if (P->CurrentVer != 0 && P.CurrentVer()->Priority == pkgCache::State::Required)
+ reason = "Required";
+ else if (userFunc.InRootSet(P))
+ reason = "Blacklisted [APT::NeverAutoRemove]";
+ else if (not IsModeChangeOk(*this, ModeGarbage, P, 0, false, DebugMarker))
+ reason = "Hold";
+ else
+ continue;
+
+ if (PkgState[P->ID].Install())
+ MarkPackage(P, PkgState[P->ID].InstVerIter(*this),
+ follow_recommends, follow_suggests, reason);
+ else
+ MarkPackage(P, P.CurrentVer(),
+ follow_recommends, follow_suggests, reason);
+ }
+
+ return true;
+}
+ /*}}}*/
+// MarkPackage - mark a single package in Mark-and-Sweep /*{{{*/
+void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &Pkg,
+ const pkgCache::VerIterator &Ver,
+ bool const &follow_recommends,
+ bool const &follow_suggests,
+ const char *reason)
+{
+ {
+ pkgDepCache::StateCache &state = PkgState[Pkg->ID];
+ // if we are marked already we are done
+ if(state.Marked || unlikely(Ver.end()))
+ return;
+ state.Marked=true;
+ }
+
+ if (IsPkgInBoringState(Pkg, PkgState))
+ return;
+
+ bool const debug_autoremove = _config->FindB("Debug::pkgAutoRemove", false);
+ if(debug_autoremove)
+ std::clog << "Marking: " << Pkg.FullName() << " " << Ver.VerStr()
+ << " (" << reason << ")" << std::endl;
+
+ for (auto D = Ver.DependsList(); D.end() == false; ++D)
+ {
+ auto const T = D.TargetPkg();
+ if (PkgState[T->ID].Marked)
+ continue;
+
+ if (D->Type != Dep::Depends &&
+ D->Type != Dep::PreDepends &&
+ (follow_recommends == false || D->Type != Dep::Recommends) &&
+ (follow_suggests == false || D->Type != Dep::Suggests))
+ continue;
+
+ // handle the virtual part first
+ APT::VersionVector providers;
+ for(auto Prv = T.ProvidesList(); Prv.end() == false; ++Prv)
+ {
+ auto PP = Prv.OwnerPkg();
+ if (IsPkgInBoringState(PP, PkgState))
+ continue;
+
+ // we want to ignore provides from uninteresting versions
+ auto const PV = (PkgState[PP->ID].Install()) ?
+ PkgState[PP->ID].InstVerIter(*this) : PP.CurrentVer();
+ if (unlikely(PV.end()) || PV != Prv.OwnerVer() || D.IsSatisfied(Prv) == false)
+ continue;
+
+ providers.emplace_back(PV);
+ }
+ if (providers.empty() == false)
+ {
+ // sort providers by source version so that only the latest versioned
+ // binary package of a source package is marked instead of all
+ std::sort(providers.begin(), providers.end(),
+ [](pkgCache::VerIterator const &A, pkgCache::VerIterator const &B) {
+ auto const nameret = strcmp(A.SourcePkgName(), B.SourcePkgName());
+ if (nameret != 0)
+ return nameret < 0;
+ auto const verret = A.Cache()->VS->CmpVersion(A.SourceVerStr(), B.SourceVerStr());
+ if (verret != 0)
+ return verret > 0;
+ return strcmp(A.ParentPkg().Name(), B.ParentPkg().Name()) < 0;
+ });
+ auto const prvsize = providers.size();
+ providers.erase(std::unique(providers.begin(), providers.end(),
+ [](pkgCache::VerIterator const &A, pkgCache::VerIterator const &B) {
+ return strcmp(A.SourcePkgName(), B.SourcePkgName()) == 0 &&
+ strcmp(A.SourceVerStr(), B.SourceVerStr()) != 0;
+ }), providers.end());
+ for (auto && PV: providers)
+ {
+ auto const PP = PV.ParentPkg();
+ if (debug_autoremove)
+ std::clog << "Following dep: " << APT::PrettyDep(this, D)
+ << ", provided by " << PP.FullName() << " " << PV.VerStr()
+ << " (" << providers.size() << "/" << prvsize << ")"<< std::endl;
+ MarkPackage(PP, PV, follow_recommends, follow_suggests, "Provider");
+ }
+ }
+
+ // now deal with the real part of the package
+ if (IsPkgInBoringState(T, PkgState))
+ continue;
+
+ auto const TV = (PkgState[T->ID].Install()) ?
+ PkgState[T->ID].InstVerIter(*this) : T.CurrentVer();
+ if (unlikely(TV.end()) || D.IsSatisfied(TV) == false)
+ continue;
+
+ if (debug_autoremove)
+ std::clog << "Following dep: " << APT::PrettyDep(this, D) << std::endl;
+ MarkPackage(T, TV, follow_recommends, follow_suggests, "Dependency");
+ }
+}
+ /*}}}*/
+bool pkgDepCache::Sweep() /*{{{*/
+{
+ bool debug_autoremove = _config->FindB("Debug::pkgAutoRemove",false);
+
+ // do the sweep
+ for(PkgIterator p=PkgBegin(); !p.end(); ++p)
+ {
+ StateCache &state=PkgState[p->ID];
+
+ // skip required packages
+ if (!p.CurrentVer().end() &&
+ (p.CurrentVer()->Priority == pkgCache::State::Required))
+ continue;
+
+ // if it is not marked and it is installed, it's garbage
+ if(!state.Marked && (!p.CurrentVer().end() || state.Install()))
+ {
+ state.Garbage=true;
+ if(debug_autoremove)
+ std::clog << "Garbage: " << p.FullName() << std::endl;
+ }
+ }
+
+ return true;
+}
+ /*}}}*/
+// DepCache::MarkAndSweep /*{{{*/
+bool pkgDepCache::MarkAndSweep(InRootSetFunc &rootFunc)
+{
+ return MarkRequired(rootFunc) && Sweep();
+}
+bool pkgDepCache::MarkAndSweep()
+{
+ InRootSetFunc *f(GetCachedRootSetFunc());
+ if (f != NULL)
+ return MarkAndSweep(*f);
+ else
+ return false;
+}
+ /*}}}*/