squash merge of the feature/apt-binary branch without the changes from experimental

1 files changed, 265 insertions, 0 deletions

diff --git a/apt-private/private-cacheset.h b/apt-private/private-cacheset.h
new file mode 100644
index 000000000..15b531e9d
--- /dev/null
+++ b/apt-private/private-cacheset.h
@@ -0,0 +1,265 @@
+#ifndef APT_PRIVATE_CACHESET_H
+#define APT_PRIVATE_CACHESET_H
+
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/cacheset.h>
+#include <apt-pkg/sptr.h>
+
+#include <algorithm>
+#include <vector>
+
+#include "private-output.h"
+
+#include <apti18n.h>
+
+struct VersionSortDescriptionLocality
+{
+   bool operator () (const pkgCache::VerIterator &v_lhs, 
+                     const pkgCache::VerIterator &v_rhs)
+    {
+        pkgCache::DescFile *A = v_lhs.TranslatedDescription().FileList();
+        pkgCache::DescFile *B = v_rhs.TranslatedDescription().FileList();
+        if (A == 0 && B == 0)
+           return false;
+
+       if (A == 0)
+          return true;
+
+       if (B == 0)
+          return false;
+
+       if (A->File == B->File)
+          return A->Offset < B->Offset;
+
+       return A->File < B->File;
+    }
+};
+
+// sorted by locality which makes iterating much faster
+typedef APT::VersionContainer<
+   std::set<pkgCache::VerIterator,
+            VersionSortDescriptionLocality> > LocalitySortedVersionSet;
+
+class Matcher {
+public:
+    virtual bool operator () (const pkgCache::PkgIterator &P) {
+        return true;};
+};
+
+// FIXME: add default argument for OpProgress (or overloaded function)
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, 
+                                    LocalitySortedVersionSet &output_set,
+                                    Matcher &matcher,
+                                    OpProgress &progress);
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, 
+                                    LocalitySortedVersionSet &output_set,
+                                    OpProgress &progress);
+
+
+// CacheSetHelper saving virtual packages				/*{{{*/
+class CacheSetHelperVirtuals: public APT::CacheSetHelper {
+public:
+   APT::PackageSet virtualPkgs;
+
+   virtual pkgCache::VerIterator canNotFindCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
+      virtualPkgs.insert(Pkg);
+      return CacheSetHelper::canNotFindCandidateVer(Cache, Pkg);
+   }
+
+   virtual pkgCache::VerIterator canNotFindNewestVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
+      virtualPkgs.insert(Pkg);
+      return CacheSetHelper::canNotFindNewestVer(Cache, Pkg);
+   }
+
+   virtual void canNotFindAllVer(APT::VersionContainerInterface * vci, pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
+      virtualPkgs.insert(Pkg);
+      CacheSetHelper::canNotFindAllVer(vci, Cache, Pkg);
+   }
+
+   CacheSetHelperVirtuals(bool const ShowErrors = true, GlobalError::MsgType const &ErrorType = GlobalError::NOTICE) : CacheSetHelper(ShowErrors, ErrorType) {}
+};
+									/*}}}*/
+
+// CacheSetHelperAPTGet - responsible for message telling from the CacheSets/*{{{*/
+class CacheSetHelperAPTGet : public APT::CacheSetHelper {
+	/** \brief stream message should be printed to */
+	std::ostream &out;
+	/** \brief were things like Task or RegEx used to select packages? */
+	bool explicitlyNamed;
+
+	APT::PackageSet virtualPkgs;
+
+public:
+	std::list<std::pair<pkgCache::VerIterator, std::string> > selectedByRelease;
+
+	CacheSetHelperAPTGet(std::ostream &out) : APT::CacheSetHelper(true), out(out) {
+		explicitlyNamed = true;
+	}
+
+	virtual void 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;
+	}
+	virtual void 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;
+	}
+	virtual void showSelectedVersion(pkgCache::PkgIterator const &Pkg, pkgCache::VerIterator const Ver,
+				 std::string const &ver, bool const verIsRel) {
+		if (ver == Ver.VerStr())
+			return;
+		selectedByRelease.push_back(make_pair(Ver, ver));
+	}
+
+	bool 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 Pkg = I.OwnerPkg();
+
+					if (Cache[Pkg].CandidateVerIter(Cache) == I.OwnerVer()) {
+						c1out << "  " << Pkg.FullName(true) << " " << I.OwnerVer().VerStr();
+						if (Cache[Pkg].Install() == true && Cache[Pkg].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()
+                                                      << _(" [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::string List;
+				std::string VersionsList;
+				SPtrArray<bool> Seen = new bool[Cache.GetPkgCache()->Head().PackageCount];
+				memset(Seen,0,Cache.GetPkgCache()->Head().PackageCount*sizeof(*Seen));
+				for (pkgCache::DepIterator Dep = Pkg.RevDependsList();
+				     Dep.end() == false; ++Dep) {
+					if (Dep->Type != pkgCache::Dep::Replaces)
+						continue;
+					if (Seen[Dep.ParentPkg()->ID] == true)
+						continue;
+					Seen[Dep.ParentPkg()->ID] = true;
+					List += Dep.ParentPkg().FullName(true) + " ";
+					//VersionsList += std::string(Dep.ParentPkg().CurVersion) + "\n"; ???
+				}
+				ShowList(c1out,_("However the following packages replace it:"),List,VersionsList);
+			}
+			c1out << std::endl;
+		}
+		return false;
+	}
+
+	virtual pkgCache::VerIterator canNotFindCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
+		APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, APT::VersionSet::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);
+	}
+
+	virtual pkgCache::VerIterator canNotFindNewestVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
+		if (Pkg->ProvidesList != 0)
+		{
+			APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, APT::VersionSet::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 tryVirtualPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg,
+						APT::VersionSet::Version const &select) {
+		/* This is a pure virtual package and there is a single available
+		   candidate providing it. */
+		if (unlikely(Cache[Pkg].CandidateVer != 0) || Pkg->ProvidesList == 0)
+			return APT::VersionSet();
+
+		pkgCache::PkgIterator Prov;
+		bool found_one = false;
+		for (pkgCache::PrvIterator P = Pkg.ProvidesList(); P; ++P) {
+			pkgCache::VerIterator const PVer = P.OwnerVer();
+			pkgCache::PkgIterator const PPkg = PVer.ParentPkg();
+
+			/* Ignore versions that are not a candidate. */
+			if (Cache[PPkg].CandidateVer != PVer)
+				continue;
+
+			if (found_one == false) {
+				Prov = PPkg;
+				found_one = true;
+			} else if (PPkg != Prov) {
+				// same group, so it's a foreign package
+				if (PPkg->Group == Prov->Group) {
+					// do we already have the requested arch?
+					if (strcmp(Pkg.Arch(), Prov.Arch()) == 0 ||
+					    strcmp(Prov.Arch(), "all") == 0 ||
+					    unlikely(strcmp(PPkg.Arch(), Prov.Arch()) == 0)) // packages have only on candidate, but just to be sure
+						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(), PPkg.Arch()) < std::find(archs.begin(), archs.end(), Prov.Arch()))
+						Prov = PPkg;
+					continue;
+				}
+				found_one = false; // we found at least two
+				break;
+			}
+		}
+
+		if (found_one == true) {
+			ioprintf(out, _("Note, selecting '%s' instead of '%s'\n"),
+				 Prov.FullName(true).c_str(), Pkg.FullName(true).c_str());
+			return APT::VersionSet::FromPackage(Cache, Prov, select, *this);
+		}
+		return APT::VersionSet();
+	}
+
+	inline bool allPkgNamedExplicitly() const { return explicitlyNamed; }
+
+};
+									/*}}}*/
+
+#endif