1 files changed, 121 insertions, 0 deletions
diff --git a/apt-private/private-cacheset.h b/apt-private/private-cacheset.h
new file mode 100644
index 000000000..37c921081
--- /dev/null
+++ b/apt-private/private-cacheset.h
@@ -0,0 +1,121 @@
+#ifndef APT_PRIVATE_CACHESET_H
+#define APT_PRIVATE_CACHESET_H
+
+#include <apt-pkg/cacheset.h>
+#include <apt-pkg/macros.h>
+
+#include <apt-private/private-output.h>
+
+#include <vector>
+#include <list>
+#include <set>
+#include <string>
+
+class OpProgress;
+
+class VerIteratorWithCaching
+{
+   const pkgCache::VerIterator iter;
+   const pkgCache::DescFile * descFile;
+public:
+   VerIteratorWithCaching(const pkgCache::VerIterator& iter) :
+      iter(iter),
+      descFile(iter->DescriptionList != 0
+	 ? (const pkgCache::DescFile *) iter.TranslatedDescription().FileList()
+	 : nullptr)
+   {}
+   const pkgCache::DescFile * CachedDescFile() const { return descFile; }
+   operator pkgCache::VerIterator() const { return iter; }
+};
+
+struct VersionSortDescriptionLocality					/*{{{*/
+{
+   bool operator () (const VerIteratorWithCaching &v_lhs,
+	 const VerIteratorWithCaching &v_rhs)
+   {
+      pkgCache::DescFile const *A = v_lhs.CachedDescFile();
+      pkgCache::DescFile const *B = v_rhs.CachedDescFile();
+
+      if (A == nullptr && B == nullptr)
+	 return false;
+
+      if (A == nullptr)
+	 return true;
+
+      if (B == nullptr)
+	 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<VerIteratorWithCaching,
+            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,
+                                    APT::VersionContainerInterface * const vci,
+                                    Matcher &matcher,
+                                    OpProgress * const progress);
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+                                    APT::VersionContainerInterface * const vci,
+                                    OpProgress * const progress);
+
+
+// CacheSetHelper saving virtual packages				/*{{{*/
+class CacheSetHelperVirtuals: public APT::CacheSetHelper {
+public:
+   APT::PackageSet virtualPkgs;
+
+   virtual pkgCache::VerIterator canNotGetVersion(enum CacheSetHelper::VerSelector const select, pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+   virtual void canNotFindVersion(enum CacheSetHelper::VerSelector const select, APT::VersionContainerInterface * vci, pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+   virtual pkgCache::PkgIterator canNotFindPkgName(pkgCacheFile &Cache, std::string const &str) APT_OVERRIDE;
+
+   CacheSetHelperVirtuals(bool const ShowErrors = true, GlobalError::MsgType const &ErrorType = GlobalError::NOTICE);
+};
+									/*}}}*/
+
+// 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;
+
+	explicit CacheSetHelperAPTGet(std::ostream &out);
+
+	virtual void showTaskSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern) APT_OVERRIDE;
+        virtual void showFnmatchSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern) APT_OVERRIDE;
+	virtual void showRegExSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern) APT_OVERRIDE;
+	virtual void showSelectedVersion(pkgCache::PkgIterator const &/*Pkg*/, pkgCache::VerIterator const Ver,
+				 std::string const &ver, bool const /*verIsRel*/) APT_OVERRIDE;
+	bool showVirtualPackageErrors(pkgCacheFile &Cache);
+
+	virtual pkgCache::VerIterator canNotFindCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+	virtual pkgCache::VerIterator canNotFindNewestVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+	virtual pkgCache::PkgIterator canNotFindPkgName(pkgCacheFile &Cache, std::string const &str) APT_OVERRIDE;
+
+	APT::VersionSet tryVirtualPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg,
+						CacheSetHelper::VerSelector const select);
+
+	inline bool allPkgNamedExplicitly() const { return explicitlyNamed; }
+};
+									/*}}}*/
+
+#endif