[apt.git] / apt-private / private-cacheset.h

#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 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;
	}
	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
Commit	Line	Data
b9179170 MV	1	#ifndef APT_PRIVATE_CACHESET_H
	2	#define APT_PRIVATE_CACHESET_H
	3
	4	#include <apt-pkg/cachefile.h>
	5	#include <apt-pkg/cacheset.h>
	6	#include <apt-pkg/sptr.h>
	7
	8	#include <algorithm>
	9	#include <vector>
	10
	11	#include "private-output.h"
	12
	13	#include <apti18n.h>
	14
	15	struct VersionSortDescriptionLocality
	16	{
	17	bool operator () (const pkgCache::VerIterator &v_lhs,
	18	const pkgCache::VerIterator &v_rhs)
	19	{
	20	pkgCache::DescFile *A = v_lhs.TranslatedDescription().FileList();
	21	pkgCache::DescFile *B = v_rhs.TranslatedDescription().FileList();
	22	if (A == 0 && B == 0)
	23	return false;
	24
	25	if (A == 0)
	26	return true;
	27
	28	if (B == 0)
	29	return false;
	30
	31	if (A->File == B->File)
	32	return A->Offset < B->Offset;
	33
	34	return A->File < B->File;
	35	}
	36	};
	37
	38	// sorted by locality which makes iterating much faster
	39	typedef APT::VersionContainer<
	40	std::set<pkgCache::VerIterator,
	41	VersionSortDescriptionLocality> > LocalitySortedVersionSet;
	42
	43	class Matcher {
	44	public:
65512241 DK	45	virtual bool operator () (const pkgCache::PkgIterator &/P/) {
65512241 DK	46	return true;}
b9179170 MV	47	};
	48
	49	// FIXME: add default argument for OpProgress (or overloaded function)
	50	bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
	51	LocalitySortedVersionSet &output_set,
	52	Matcher &matcher,
	53	OpProgress &progress);
	54	bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
	55	LocalitySortedVersionSet &output_set,
	56	OpProgress &progress);
	57
	58
	59	// CacheSetHelper saving virtual packages /{{{/
	60	class CacheSetHelperVirtuals: public APT::CacheSetHelper {
	61	public:
	62	APT::PackageSet virtualPkgs;
	63
	64	virtual pkgCache::VerIterator canNotFindCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
	65	virtualPkgs.insert(Pkg);
	66	return CacheSetHelper::canNotFindCandidateVer(Cache, Pkg);
	67	}
	68
	69	virtual pkgCache::VerIterator canNotFindNewestVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
	70	virtualPkgs.insert(Pkg);
	71	return CacheSetHelper::canNotFindNewestVer(Cache, Pkg);
	72	}
	73
	74	virtual void canNotFindAllVer(APT::VersionContainerInterface * vci, pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
	75	virtualPkgs.insert(Pkg);
	76	CacheSetHelper::canNotFindAllVer(vci, Cache, Pkg);
	77	}
	78
	79	CacheSetHelperVirtuals(bool const ShowErrors = true, GlobalError::MsgType const &ErrorType = GlobalError::NOTICE) : CacheSetHelper(ShowErrors, ErrorType) {}
	80	};
	81	/}}}/
	82
	83	// CacheSetHelperAPTGet - responsible for message telling from the CacheSets/{{{/
	84	class CacheSetHelperAPTGet : public APT::CacheSetHelper {
	85	/** \brief stream message should be printed to */
	86	std::ostream &out;
	87	/** \brief were things like Task or RegEx used to select packages? */
	88	bool explicitlyNamed;
	89
	90	APT::PackageSet virtualPkgs;
	91
	92	public:
	93	std::list<std::pair<pkgCache::VerIterator, std::string> > selectedByRelease;
	94
	95	CacheSetHelperAPTGet(std::ostream &out) : APT::CacheSetHelper(true), out(out) {
	96	explicitlyNamed = true;
	97	}
	98
	99	virtual void showTaskSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern) {
	100	ioprintf(out, _("Note, selecting '%s' for task '%s'\n"),
	101	Pkg.FullName(true).c_str(), pattern.c_str());
	102	explicitlyNamed = false;
	103	}
16724b66 MV	104	virtual void showFnmatchSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern) {
	105	ioprintf(out, _("Note, selecting '%s' for glob '%s'\n"),
	106	Pkg.FullName(true).c_str(), pattern.c_str());
	107	explicitlyNamed = false;
	108	}
b9179170 MV	109	virtual void showRegExSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern) {
	110	ioprintf(out, _("Note, selecting '%s' for regex '%s'\n"),
	111	Pkg.FullName(true).c_str(), pattern.c_str());
	112	explicitlyNamed = false;
	113	}
65512241 DK	114	virtual void showSelectedVersion(pkgCache::PkgIterator const &/Pkg/, pkgCache::VerIterator const Ver,
65512241 DK	115	std::string const &ver, bool const /verIsRel/) {
b9179170 MV	116	if (ver == Ver.VerStr())
	117	return;
	118	selectedByRelease.push_back(make_pair(Ver, ver));
	119	}
	120
	121	bool showVirtualPackageErrors(pkgCacheFile &Cache) {
	122	if (virtualPkgs.empty() == true)
	123	return true;
	124	for (APT::PackageSet::const_iterator Pkg = virtualPkgs.begin();
	125	Pkg != virtualPkgs.end(); ++Pkg) {
	126	if (Pkg->ProvidesList != 0) {
	127	ioprintf(c1out,_("Package %s is a virtual package provided by:\n"),
	128	Pkg.FullName(true).c_str());
	129
	130	pkgCache::PrvIterator I = Pkg.ProvidesList();
	131	unsigned short provider = 0;
	132	for (; I.end() == false; ++I) {
	133	pkgCache::PkgIterator Pkg = I.OwnerPkg();
	134
	135	if (Cache[Pkg].CandidateVerIter(Cache) == I.OwnerVer()) {
	136	c1out << " " << Pkg.FullName(true) << " " << I.OwnerVer().VerStr();
	137	if (Cache[Pkg].Install() == true && Cache[Pkg].NewInstall() == false)
	138	c1out << _(" [Installed]");
	139	c1out << std::endl;
	140	++provider;
	141	}
	142	}
	143	// if we found no candidate which provide this package, show non-candidates
	144	if (provider == 0)
	145	for (I = Pkg.ProvidesList(); I.end() == false; ++I)
	146	c1out << " " << I.OwnerPkg().FullName(true) << " " << I.OwnerVer().VerStr()
	147	<< _(" [Not candidate version]") << std::endl;
	148	else
	149	out << _("You should explicitly select one to install.") << std::endl;
	150	} else {
	151	ioprintf(c1out,
	152	_("Package %s is not available, but is referred to by another package.\n"
	153	"This may mean that the package is missing, has been obsoleted, or\n"
	154	"is only available from another source\n"),Pkg.FullName(true).c_str());
	155
	156	std::string List;
	157	std::string VersionsList;
	158	SPtrArray<bool> Seen = new bool[Cache.GetPkgCache()->Head().PackageCount];
	159	memset(Seen,0,Cache.GetPkgCache()->Head().PackageCountsizeof(Seen));
	160	for (pkgCache::DepIterator Dep = Pkg.RevDependsList();
	161	Dep.end() == false; ++Dep) {
	162	if (Dep->Type != pkgCache::Dep::Replaces)
	163	continue;
	164	if (Seen[Dep.ParentPkg()->ID] == true)
	165	continue;
	166	Seen[Dep.ParentPkg()->ID] = true;
	167	List += Dep.ParentPkg().FullName(true) + " ";
	168	//VersionsList += std::string(Dep.ParentPkg().CurVersion) + "\n"; ???
	169	}
	170	ShowList(c1out,_("However the following packages replace it:"),List,VersionsList);
	171	}
	172	c1out << std::endl;
	173	}
	174	return false;
	175	}
	176
	177	virtual pkgCache::VerIterator canNotFindCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
	178	APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, APT::VersionSet::CANDIDATE);
	179	if (verset.empty() == false)
180	return *(verset.begin());
181	else if (ShowError == true) {
182	_error->Error(_("Package '%s' has no installation candidate"),Pkg.FullName(true).c_str());
183	virtualPkgs.insert(Pkg);
184	}
185	return pkgCache::VerIterator(Cache, 0);
186	}
187
188	virtual pkgCache::VerIterator canNotFindNewestVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) {
189	if (Pkg->ProvidesList != 0)
190	{
191	APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, APT::VersionSet::NEWEST);
192	if (verset.empty() == false)
193	return *(verset.begin());
194	if (ShowError == true)
195	ioprintf(out, _("Virtual packages like '%s' can't be removed\n"), Pkg.FullName(true).c_str());
196	}
197	else
198	{
199	pkgCache::GrpIterator Grp = Pkg.Group();
200	pkgCache::PkgIterator P = Grp.PackageList();
201	for (; P.end() != true; P = Grp.NextPkg(P))
202	{
203	if (P == Pkg)
204	continue;
205	if (P->CurrentVer != 0) {
206	// TRANSLATORS: Note, this is not an interactive question
207	ioprintf(c1out,_("Package '%s' is not installed, so not removed. Did you mean '%s'?\n"),
208	Pkg.FullName(true).c_str(), P.FullName(true).c_str());
209	break;
210	}
211	}
212	if (P.end() == true)
213	ioprintf(c1out,_("Package '%s' is not installed, so not removed\n"),Pkg.FullName(true).c_str());
214	}
215	return pkgCache::VerIterator(Cache, 0);
216	}
217
218	APT::VersionSet tryVirtualPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg,
219	APT::VersionSet::Version const &select) {
220	/* This is a pure virtual package and there is a single available
221	candidate providing it. */
222	if (unlikely(Cache[Pkg].CandidateVer != 0) \|\| Pkg->ProvidesList == 0)
223	return APT::VersionSet();
224
225	pkgCache::PkgIterator Prov;
226	bool found_one = false;
227	for (pkgCache::PrvIterator P = Pkg.ProvidesList(); P; ++P) {
228	pkgCache::VerIterator const PVer = P.OwnerVer();
229	pkgCache::PkgIterator const PPkg = PVer.ParentPkg();
230
231	/* Ignore versions that are not a candidate. */
232	if (Cache[PPkg].CandidateVer != PVer)
233	continue;
234
235	if (found_one == false) {
236	Prov = PPkg;
237	found_one = true;
238	} else if (PPkg != Prov) {
239	// same group, so it's a foreign package
240	if (PPkg->Group == Prov->Group) {
241	// do we already have the requested arch?
242	if (strcmp(Pkg.Arch(), Prov.Arch()) == 0 \|\|
243	strcmp(Prov.Arch(), "all") == 0 \|\|
244	unlikely(strcmp(PPkg.Arch(), Prov.Arch()) == 0)) // packages have only on candidate, but just to be sure
245	continue;
246	// see which architecture we prefer more and switch to it
247	std::vector<std::string> archs = APT::Configuration::getArchitectures();
248	if (std::find(archs.begin(), archs.end(), PPkg.Arch()) < std::find(archs.begin(), archs.end(), Prov.Arch()))
249	Prov = PPkg;
250	continue;
251	}
252	found_one = false; // we found at least two
253	break;
254	}
255	}
256
257	if (found_one == true) {
258	ioprintf(out, _("Note, selecting '%s' instead of '%s'\n"),
259	Prov.FullName(true).c_str(), Pkg.FullName(true).c_str());
260	return APT::VersionSet::FromPackage(Cache, Prov, select, *this);
261	}
262	return APT::VersionSet();
263	}
264
265	inline bool allPkgNamedExplicitly() const { return explicitlyNamed; }
266
267	};
268	/}}}/
269
270	#endif