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-rw-r--r--apt-private/private-cacheset.cc505
1 files changed, 505 insertions, 0 deletions
diff --git a/apt-private/private-cacheset.cc b/apt-private/private-cacheset.cc
new file mode 100644
index 0000000..bd8f629
--- /dev/null
+++ b/apt-private/private-cacheset.cc
@@ -0,0 +1,505 @@
+#include <config.h>
+
+#include <apt-pkg/cacheset.h>
+#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/cachefilter.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/policy.h>
+#include <apt-pkg/progress.h>
+#include <apt-pkg/strutl.h>
+
+#include <apt-private/private-cacheset.h>
+
+#include <cstddef>
+
+#include <apti18n.h>
+
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, /*{{{*/
+ APT::VersionContainerInterface * const vci,
+ OpProgress * const progress)
+{
+ Matcher null_matcher = Matcher();
+ return GetLocalitySortedVersionSet(CacheFile, vci,
+ null_matcher, progress);
+}
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+ APT::VersionContainerInterface * const vci,
+ Matcher &matcher,
+ OpProgress * const progress)
+{
+ pkgCache * const Cache = CacheFile.GetPkgCache();
+ if (unlikely(Cache == nullptr))
+ return false;
+ if (progress != nullptr)
+ progress->SubProgress(Cache->Head().PackageCount, _("Sorting"));
+
+ pkgDepCache * const DepCache = CacheFile.GetDepCache();
+ if (unlikely(DepCache == nullptr))
+ return false;
+ APT::CacheSetHelper helper(false);
+
+ int Done=0;
+
+ bool const insertCurrentVer = _config->FindB("APT::Cmd::Installed", false);
+ bool const insertUpgradable = _config->FindB("APT::Cmd::Upgradable", false);
+ bool const insertManualInstalled = _config->FindB("APT::Cmd::Manual-Installed", false);
+
+ for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
+ {
+ if (progress != NULL)
+ {
+ if (Done % 500 == 0)
+ progress->Progress(Done);
+ ++Done;
+ }
+
+ // exclude virtual pkgs
+ if (P->VersionList == 0)
+ continue;
+
+ if ((matcher)(P) == false)
+ continue;
+
+ pkgDepCache::StateCache &state = (*DepCache)[P];
+ if (insertCurrentVer == true)
+ {
+ if (P->CurrentVer != 0)
+ vci->FromPackage(vci, CacheFile, P, APT::CacheSetHelper::INSTALLED, helper);
+ }
+ else if (insertUpgradable == true)
+ {
+ if(P.CurrentVer() && state.Upgradable())
+ vci->FromPackage(vci, CacheFile, P, APT::CacheSetHelper::CANDIDATE, helper);
+ }
+ else if (insertManualInstalled == true)
+ {
+ if (P.CurrentVer() &&
+ ((*DepCache)[P].Flags & pkgCache::Flag::Auto) == false)
+ vci->FromPackage(vci, CacheFile, P, APT::CacheSetHelper::CANDIDATE, helper);
+ }
+ else
+ {
+ if (vci->FromPackage(vci, CacheFile, P, APT::CacheSetHelper::CANDIDATE, helper) == false)
+ {
+ // no candidate, this may happen for packages in
+ // dpkg "deinstall ok config-file" state - we pick the first ver
+ // (which should be the only one)
+ vci->insert(P.VersionList());
+ }
+ }
+ }
+ if (progress != NULL)
+ progress->Done();
+ return true;
+}
+ /*}}}*/
+
+// CacheSetHelper saving virtual packages /*{{{*/
+pkgCache::VerIterator CacheSetHelperVirtuals::canNotGetVersion(
+ enum CacheSetHelper::VerSelector const select,
+ pkgCacheFile &Cache,
+ pkgCache::PkgIterator const &Pkg)
+{
+ switch (select)
+ {
+ case VERSIONNUMBER:
+ case RELEASE:
+ case INSTALLED:
+ case CANDIDATE:
+ case NEWEST:
+ case ALL:
+ virtualPkgs.insert(Pkg);
+ break;
+ case CANDANDINST:
+ case CANDINST:
+ case INSTCAND:
+ break;
+ }
+ return CacheSetHelper::canNotGetVersion(select, Cache, Pkg);
+}
+void CacheSetHelperVirtuals::canNotFindVersion(
+ enum CacheSetHelper::VerSelector const select,
+ APT::VersionContainerInterface * vci,
+ pkgCacheFile &Cache,
+ pkgCache::PkgIterator const &Pkg)
+{
+ if (select == NEWEST || select == CANDIDATE || select == ALL)
+ virtualPkgs.insert(Pkg);
+ return CacheSetHelper::canNotFindVersion(select, vci, Cache, Pkg);
+}
+static pkgCache::PkgIterator canNotFindPkgName_impl(pkgCacheFile &Cache, std::string const &str)
+{
+ std::string pkg = str;
+ size_t const archfound = pkg.find_last_of(':');
+ std::string arch;
+ if (archfound != std::string::npos) {
+ arch = pkg.substr(archfound+1);
+ pkg.erase(archfound);
+ if (arch == "all" || arch == "native")
+ arch = _config->Find("APT::Architecture");
+ }
+
+ // If we don't find 'foo:amd64' look for 'foo:amd64:any'.
+ // Note: we prepare for an error here as if foo:amd64 does not exist,
+ // but foo:amd64:any it means that this package is only referenced in a
+ // (architecture specific) dependency. We do not add to virtualPkgs directly
+ // as we can't decide from here which error message has to be printed.
+ // FIXME: This doesn't match 'barbarian' architectures
+ pkgCache::PkgIterator Pkg(Cache, 0);
+ std::vector<std::string> const archs = APT::Configuration::getArchitectures();
+ if (archfound == std::string::npos)
+ {
+ for (auto const &a : archs)
+ {
+ Pkg = Cache.GetPkgCache()->FindPkg(pkg + ':' + a, "any");
+ if (Pkg.end() == false && Pkg->ProvidesList != 0)
+ break;
+ }
+ if (Pkg.end() == true)
+ for (auto const &a : archs)
+ {
+ Pkg = Cache.GetPkgCache()->FindPkg(pkg + ':' + a, "any");
+ if (Pkg.end() == false)
+ break;
+ }
+ }
+ else
+ {
+ Pkg = Cache.GetPkgCache()->FindPkg(pkg + ':' + arch, "any");
+ if (Pkg.end() == true)
+ {
+ APT::CacheFilter::PackageArchitectureMatchesSpecification pams(arch);
+ for (auto const &a : archs)
+ {
+ if (pams(a.c_str()) == false)
+ continue;
+ Pkg = Cache.GetPkgCache()->FindPkg(pkg + ':' + a, "any");
+ if (Pkg.end() == false)
+ break;
+ }
+ }
+ }
+ return Pkg;
+}
+pkgCache::PkgIterator CacheSetHelperVirtuals::canNotFindPkgName(pkgCacheFile &Cache, std::string const &str)
+{
+ pkgCache::PkgIterator const Pkg = canNotFindPkgName_impl(Cache, str);
+ if (Pkg.end())
+ return APT::CacheSetHelper::canNotFindPkgName(Cache, str);
+ return Pkg;
+}
+CacheSetHelperVirtuals::CacheSetHelperVirtuals(bool const ShowErrors, GlobalError::MsgType const &ErrorType) :
+ CacheSetHelper{ShowErrors, ErrorType}
+{}
+ /*}}}*/
+
+// CacheSetHelperAPTGet - responsible for message telling from the CacheSets/*{{{*/
+CacheSetHelperAPTGet::CacheSetHelperAPTGet(std::ostream &pout) :
+ APT::CacheSetHelper{true}, out(pout)
+{
+ explicitlyNamed = true;
+}
+void CacheSetHelperAPTGet::showPackageSelection(pkgCache::PkgIterator const &pkg, enum PkgSelector const select,
+ std::string const &pattern)
+{
+ switch (select)
+ {
+ case REGEX:
+ showRegExSelection(pkg, pattern);
+ break;
+ case TASK:
+ showTaskSelection(pkg, pattern);
+ break;
+ case FNMATCH:
+ showFnmatchSelection(pkg, pattern);
+ break;
+ default:
+ APT::CacheSetHelper::showPackageSelection(pkg, select, pattern);
+ break;
+ }
+}
+void CacheSetHelperAPTGet::showTaskSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern)
+{
+ ioprintf(out, _("Note, selecting '%s' for task '%s'\n"),
+ Pkg.FullName(true).c_str(), pattern.c_str());
+ explicitlyNamed = false;
+}
+void CacheSetHelperAPTGet::showFnmatchSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern)
+{
+ ioprintf(out, _("Note, selecting '%s' for glob '%s'\n"),
+ Pkg.FullName(true).c_str(), pattern.c_str());
+ explicitlyNamed = false;
+}
+void CacheSetHelperAPTGet::showRegExSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern)
+{
+ ioprintf(out, _("Note, selecting '%s' for regex '%s'\n"),
+ Pkg.FullName(true).c_str(), pattern.c_str());
+ explicitlyNamed = false;
+}
+void CacheSetHelperAPTGet::showVersionSelection(pkgCache::PkgIterator const &Pkg,
+ pkgCache::VerIterator const &Ver, enum VerSelector const select, std::string const &pattern)
+{
+ switch (select)
+ {
+ case VERSIONNUMBER:
+ if (pattern == Ver.VerStr())
+ return;
+ /* fall through */
+ case RELEASE:
+ selectedByRelease.push_back(make_pair(Ver, pattern));
+ break;
+ default:
+ return APT::CacheSetHelper::showVersionSelection(Pkg, Ver, select, pattern);
+ }
+}
+
+bool CacheSetHelperAPTGet::showVirtualPackageErrors(pkgCacheFile &Cache)
+{
+ if (virtualPkgs.empty() == true)
+ return true;
+ for (APT::PackageSet::const_iterator Pkg = virtualPkgs.begin();
+ Pkg != virtualPkgs.end(); ++Pkg) {
+ if (Pkg->ProvidesList != 0) {
+ ioprintf(c1out,_("Package %s is a virtual package provided by:\n"),
+ Pkg.FullName(true).c_str());
+
+ pkgCache::PrvIterator I = Pkg.ProvidesList();
+ unsigned short provider = 0;
+ for (; I.end() == false; ++I) {
+ pkgCache::PkgIterator const OPkg = I.OwnerPkg();
+
+ if (Cache[OPkg].CandidateVerIter(Cache) == I.OwnerVer())
+ {
+ c1out << " " << OPkg.FullName(true) << ' ' << I.OwnerVer().VerStr();
+ if (I->ProvideVersion != 0)
+ c1out << " (= " << I.ProvideVersion() << ")";
+ if (Cache[OPkg].Install() == true && Cache[OPkg].NewInstall() == false)
+ c1out << _(" [Installed]");
+ c1out << std::endl;
+ ++provider;
+ }
+ }
+ // if we found no candidate which provide this package, show non-candidates
+ if (provider == 0)
+ for (I = Pkg.ProvidesList(); I.end() == false; ++I)
+ {
+ c1out << " " << I.OwnerPkg().FullName(true) << " " << I.OwnerVer().VerStr();
+ if (I->ProvideVersion != 0)
+ c1out << " (= " << I.ProvideVersion() << ")";
+ c1out << _(" [Not candidate version]") << std::endl;
+ }
+ else
+ out << _("You should explicitly select one to install.") << std::endl;
+ } else {
+ ioprintf(c1out,
+ _("Package %s is not available, but is referred to by another package.\n"
+ "This may mean that the package is missing, has been obsoleted, or\n"
+ "is only available from another source\n"),Pkg.FullName(true).c_str());
+
+ std::vector<bool> Seen(Cache.GetPkgCache()->Head().PackageCount, false);
+ APT::PackageList pkglist;
+ for (pkgCache::DepIterator Dep = Pkg.RevDependsList();
+ Dep.end() == false; ++Dep) {
+ if (Dep->Type != pkgCache::Dep::Replaces)
+ continue;
+ pkgCache::PkgIterator const DP = Dep.ParentPkg();
+ if (Seen[DP->ID] == true)
+ continue;
+ Seen[DP->ID] = true;
+ pkglist.insert(DP);
+ }
+ ShowList(c1out, _("However the following packages replace it:"), pkglist,
+ &AlwaysTrue, &PrettyFullName, &EmptyString);
+ }
+ c1out << std::endl;
+ }
+ return false;
+}
+pkgCache::VerIterator CacheSetHelperAPTGet::canNotGetVersion(enum VerSelector const select, pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg)
+{
+ switch (select)
+ {
+ case NEWEST:
+ return canNotFindNewestVer(Cache, Pkg);
+ case CANDIDATE:
+ return canNotFindCandidateVer(Cache, Pkg);
+ case VERSIONNUMBER:
+ return canNotFindVersionNumber(Cache, Pkg, getLastVersionMatcher());
+ case RELEASE:
+ return canNotFindVersionRelease(Cache, Pkg, getLastVersionMatcher());
+ default:
+ return APT::CacheSetHelper::canNotGetVersion(select, Cache, Pkg);
+ }
+}
+void CacheSetHelperAPTGet::canNotFindVersion(enum VerSelector const select, APT::VersionContainerInterface * const vci, pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg)
+{
+ switch (select)
+ {
+ case NEWEST:
+ canNotFindNewestVer(Cache, Pkg);
+ break;
+ case CANDIDATE:
+ canNotFindCandidateVer(Cache, Pkg);
+ break;
+ default:
+ return APT::CacheSetHelper::canNotFindVersion(select, vci, Cache, Pkg);
+ }
+}
+
+pkgCache::VerIterator CacheSetHelperAPTGet::canNotFindVersionNumber(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg, std::string const &verstr)
+{
+ APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, CacheSetHelper::VERSIONNUMBER);
+ if (not verset.empty())
+ return *(verset.begin());
+ else if (ShowError)
+ {
+ auto const V = canNotGetVerFromVersionNumber(Cache, Pkg, verstr);
+ if (not V.end())
+ return V;
+ virtualPkgs.insert(Pkg);
+ }
+ return pkgCache::VerIterator(Cache, 0);
+}
+pkgCache::VerIterator CacheSetHelperAPTGet::canNotFindVersionRelease(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg, std::string const &verstr)
+{
+ APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, CacheSetHelper::RELEASE);
+ if (not verset.empty())
+ return *(verset.begin());
+ else if (ShowError)
+ {
+ auto const V = canNotGetVerFromRelease(Cache, Pkg, verstr);
+ if (not V.end())
+ return V;
+ virtualPkgs.insert(Pkg);
+ }
+ return pkgCache::VerIterator(Cache, 0);
+}
+pkgCache::VerIterator CacheSetHelperAPTGet::canNotFindCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg)
+{
+ APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, CacheSetHelper::CANDIDATE);
+ if (verset.empty() == false)
+ return *(verset.begin());
+ else if (ShowError == true) {
+ _error->Error(_("Package '%s' has no installation candidate"),Pkg.FullName(true).c_str());
+ virtualPkgs.insert(Pkg);
+ }
+ return pkgCache::VerIterator(Cache, 0);
+}
+pkgCache::VerIterator CacheSetHelperAPTGet::canNotFindNewestVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg)
+{
+ if (Pkg->ProvidesList != 0)
+ {
+ APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, CacheSetHelper::NEWEST);
+ if (verset.empty() == false)
+ return *(verset.begin());
+ if (ShowError == true)
+ ioprintf(out, _("Virtual packages like '%s' can't be removed\n"), Pkg.FullName(true).c_str());
+ }
+ else
+ {
+ pkgCache::GrpIterator Grp = Pkg.Group();
+ pkgCache::PkgIterator P = Grp.PackageList();
+ for (; P.end() != true; P = Grp.NextPkg(P))
+ {
+ if (P == Pkg)
+ continue;
+ if (P->CurrentVer != 0) {
+ // TRANSLATORS: Note, this is not an interactive question
+ ioprintf(c1out,_("Package '%s' is not installed, so not removed. Did you mean '%s'?\n"),
+ Pkg.FullName(true).c_str(), P.FullName(true).c_str());
+ break;
+ }
+ }
+ if (P.end() == true)
+ ioprintf(c1out,_("Package '%s' is not installed, so not removed\n"),Pkg.FullName(true).c_str());
+ }
+ return pkgCache::VerIterator(Cache, 0);
+}
+APT::VersionSet CacheSetHelperAPTGet::tryVirtualPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg,
+ CacheSetHelper::VerSelector const select)
+{
+ /* If this is a virtual package see if we have a single matching provider
+ (ignoring multiple matches from the same package due to e.g. M-A) */
+ if (Pkg->ProvidesList == 0)
+ return APT::VersionSet{};
+
+ auto const oldShowError = showErrors(false);
+ APT::VersionVector verset;
+ auto const lastmatcher = getLastVersionMatcher();
+ for (auto P = Pkg.ProvidesList(); not P.end(); ++P)
+ {
+ auto V = P.OwnerVer();
+ switch (select)
+ {
+ case RELEASE:
+ for (auto File = V.FileList(); not File.end(); ++File)
+ if ((File.File().Archive() != nullptr && lastmatcher == File.File().Archive()) ||
+ (File.File().Codename() != nullptr && lastmatcher == File.File().Codename()))
+ {
+ verset.push_back(V);
+ break;
+ }
+ break;
+ case VERSIONNUMBER:
+ if (P->ProvideVersion != 0 && lastmatcher == P.ProvideVersion())
+ verset.push_back(V);
+ break;
+ default:
+ if (Cache[V.ParentPkg()].CandidateVerIter(Cache) == V)
+ verset.push_back(V);
+ break;
+ }
+ }
+ // do not change the candidate if we have more than one option for this package
+ if (select == VERSIONNUMBER || select == RELEASE)
+ for (auto const &V : verset)
+ if (std::count_if(verset.begin(), verset.end(), [Pkg = V.ParentPkg()](auto const &v) { return v.ParentPkg() == Pkg; }) == 1)
+ Cache->SetCandidateVersion(V);
+ showErrors(oldShowError);
+
+ pkgCache::VerIterator Choosen;
+ for (auto const &Ver : verset)
+ {
+ if (Choosen.end())
+ Choosen = Ver;
+ else
+ {
+ auto const ChoosenPkg = Choosen.ParentPkg();
+ auto const AltPkg = Ver.ParentPkg();
+ // seeing two different packages makes it not simple anymore
+ if (ChoosenPkg->Group != AltPkg->Group)
+ return APT::VersionSet{};
+ // do we already have the requested arch?
+ if (strcmp(Pkg.Arch(), ChoosenPkg.Arch()) == 0 ||
+ strcmp(ChoosenPkg.Arch(), "all") == 0)
+ continue;
+ // see which architecture we prefer more and switch to it
+ std::vector<std::string> archs = APT::Configuration::getArchitectures();
+ if (std::find(archs.begin(), archs.end(), AltPkg.Arch()) < std::find(archs.begin(), archs.end(), ChoosenPkg.Arch()))
+ Choosen = Ver;
+ }
+ }
+ if (Choosen.end())
+ return APT::VersionSet{};
+
+ ioprintf(out, _("Note, selecting '%s' instead of '%s'\n"),
+ Choosen.ParentPkg().FullName(true).c_str(), Pkg.FullName(true).c_str());
+ return { Choosen };
+}
+pkgCache::PkgIterator CacheSetHelperAPTGet::canNotFindPkgName(pkgCacheFile &Cache, std::string const &str)
+{
+ pkgCache::PkgIterator Pkg = canNotFindPkgName_impl(Cache, str);
+ if (Pkg.end())
+ {
+ Pkg = APT::CacheSetHelper::canNotFindPkgName(Cache, str);
+ if (Pkg.end() && ShowError)
+ {
+ notFound.insert(str);
+ }
+ }
+ return Pkg;
+}
+ /*}}}*/