[apt.git] / apt-pkg / cacheset.cc

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
/* ######################################################################

   Simple wrapper around a std::set to provide a similar interface to
   a set of cache structures as to the complete set of all structures
   in the pkgCache. Currently only Package is supported.

   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include <apt-pkg/aptconfiguration.h>
#include <apt-pkg/cachefilter.h>
#include <apt-pkg/cacheset.h>
#include <apt-pkg/error.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/versionmatch.h>

#include <apti18n.h>

#include <vector>

#include <regex.h>
									/*}}}*/
namespace APT {
// FromTask - Return all packages in the cache from a specific task	/*{{{*/
PackageSet PackageSet::FromTask(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) {
	size_t const archfound = pattern.find_last_of(':');
	std::string arch = "native";
	if (archfound != std::string::npos) {
		arch = pattern.substr(archfound+1);
		pattern.erase(archfound);
	}

	if (pattern[pattern.length() -1] != '^')
		return APT::PackageSet(TASK);
	pattern.erase(pattern.length()-1);

	if (unlikely(Cache.GetPkgCache() == 0 || Cache.GetDepCache() == 0))
		return APT::PackageSet(TASK);

	PackageSet pkgset(TASK);
	// get the records
	pkgRecords Recs(Cache);

	// build regexp for the task
	regex_t Pattern;
	char S[300];
	snprintf(S, sizeof(S), "^Task:.*[, ]%s([, ]|$)", pattern.c_str());
	if(regcomp(&Pattern,S, REG_EXTENDED | REG_NOSUB | REG_NEWLINE) != 0) {
		_error->Error("Failed to compile task regexp");
		return pkgset;
	}

	for (pkgCache::GrpIterator Grp = Cache->GrpBegin(); Grp.end() == false; ++Grp) {
		pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
		if (Pkg.end() == true)
			continue;
		pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache);
		if(ver.end() == true)
			continue;

		pkgRecords::Parser &parser = Recs.Lookup(ver.FileList());
		const char *start, *end;
		parser.GetRec(start,end);
		unsigned int const length = end - start;
		char buf[length];
		strncpy(buf, start, length);
		buf[length-1] = '\0';
		if (regexec(&Pattern, buf, 0, 0, 0) != 0)
			continue;

		pkgset.insert(Pkg);
	}
	regfree(&Pattern);

	if (pkgset.empty() == true)
		return helper.canNotFindTask(Cache, pattern);

	helper.showTaskSelection(pkgset, pattern);
	return pkgset;
}
									/*}}}*/
// FromRegEx - Return all packages in the cache matching a pattern	/*{{{*/
PackageSet PackageSet::FromRegEx(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) {
	static const char * const isregex = ".?+*|[^$";
	if (pattern.find_first_of(isregex) == std::string::npos)
		return PackageSet(REGEX);

	size_t archfound = pattern.find_last_of(':');
	std::string arch = "native";
	if (archfound != std::string::npos) {
		arch = pattern.substr(archfound+1);
		if (arch.find_first_of(isregex) == std::string::npos)
			pattern.erase(archfound);
		else
			arch = "native";
	}

	if (unlikely(Cache.GetPkgCache() == 0))
		return PackageSet(REGEX);

	APT::CacheFilter::PackageNameMatchesRegEx regexfilter(pattern);

	PackageSet pkgset(REGEX);
	for (pkgCache::GrpIterator Grp = Cache.GetPkgCache()->GrpBegin(); Grp.end() == false; ++Grp) {
		if (regexfilter(Grp) == false)
			continue;
		pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
		if (Pkg.end() == true) {
			if (archfound == std::string::npos) {
				std::vector<std::string> archs = APT::Configuration::getArchitectures();
				for (std::vector<std::string>::const_iterator a = archs.begin();
				     a != archs.end() && Pkg.end() != true; ++a)
					Pkg = Grp.FindPkg(*a);
			}
			if (Pkg.end() == true)
				continue;
		}

		pkgset.insert(Pkg);
	}

	if (pkgset.empty() == true)
		return helper.canNotFindRegEx(Cache, pattern);

	helper.showRegExSelection(pkgset, pattern);
	return pkgset;
}
									/*}}}*/
// FromName - Returns the package defined  by this string		/*{{{*/
pkgCache::PkgIterator PackageSet::FromName(pkgCacheFile &Cache,
			std::string const &str, CacheSetHelper &helper) {
	std::string pkg = str;
	size_t archfound = pkg.find_last_of(':');
	std::string arch;
	if (archfound != std::string::npos) {
		arch = pkg.substr(archfound+1);
		pkg.erase(archfound);
	}

	if (Cache.GetPkgCache() == 0)
		return pkgCache::PkgIterator(Cache, 0);

	pkgCache::PkgIterator Pkg(Cache, 0);
	if (arch.empty() == true) {
		pkgCache::GrpIterator Grp = Cache.GetPkgCache()->FindGrp(pkg);
		if (Grp.end() == false)
			Pkg = Grp.FindPreferredPkg();
	} else
		Pkg = Cache.GetPkgCache()->FindPkg(pkg, arch);

	if (Pkg.end() == true)
		return helper.canNotFindPkgName(Cache, str);
	return Pkg;
}
									/*}}}*/
// GroupedFromCommandLine - Return all versions specified on commandline/*{{{*/
std::map<unsigned short, PackageSet> PackageSet::GroupedFromCommandLine(
		pkgCacheFile &Cache, const char **cmdline,
		std::list<PackageSet::Modifier> const &mods,
		unsigned short const &fallback, CacheSetHelper &helper) {
	std::map<unsigned short, PackageSet> pkgsets;
	for (const char **I = cmdline; *I != 0; ++I) {
		unsigned short modID = fallback;
		std::string str = *I;
		bool modifierPresent = false;
		for (std::list<PackageSet::Modifier>::const_iterator mod = mods.begin();
		     mod != mods.end(); ++mod) {
			size_t const alength = strlen(mod->Alias);
			switch(mod->Pos) {
			case PackageSet::Modifier::POSTFIX:
				if (str.compare(str.length() - alength, alength,
						mod->Alias, 0, alength) != 0)
					continue;
				str.erase(str.length() - alength);
				modID = mod->ID;
				break;
			case PackageSet::Modifier::PREFIX:
				continue;
			case PackageSet::Modifier::NONE:
				continue;
			}
			modifierPresent = true;
			break;
		}
		if (modifierPresent == true) {
			bool const errors = helper.showErrors(false);
			pkgCache::PkgIterator Pkg = FromName(Cache, *I, helper);
			helper.showErrors(errors);
			if (Pkg.end() == false) {
				pkgsets[fallback].insert(Pkg);
				continue;
			}
		}
		pkgsets[modID].insert(PackageSet::FromString(Cache, str, helper));
	}
	return pkgsets;
}
									/*}}}*/
// FromCommandLine - Return all packages specified on commandline	/*{{{*/
PackageSet PackageSet::FromCommandLine(pkgCacheFile &Cache, const char **cmdline, CacheSetHelper &helper) {
	PackageSet pkgset;
	for (const char **I = cmdline; *I != 0; ++I) {
		PackageSet pset = FromString(Cache, *I, helper);
		pkgset.insert(pset.begin(), pset.end());
	}
	return pkgset;
}
									/*}}}*/
// FromString - Return all packages matching a specific string		/*{{{*/
PackageSet PackageSet::FromString(pkgCacheFile &Cache, std::string const &str, CacheSetHelper &helper) {
	_error->PushToStack();

	PackageSet pkgset;
	pkgCache::PkgIterator Pkg = FromName(Cache, str, helper);
	if (Pkg.end() == false)
		pkgset.insert(Pkg);
	else {
		pkgset = FromTask(Cache, str, helper);
		if (pkgset.empty() == true) {
			pkgset = FromRegEx(Cache, str, helper);
			if (pkgset.empty() == true)
				pkgset = helper.canNotFindPackage(Cache, str);
		}
	}

	if (pkgset.empty() == false)
		_error->RevertToStack();
	else
		_error->MergeWithStack();
	return pkgset;
}
									/*}}}*/
// GroupedFromCommandLine - Return all versions specified on commandline/*{{{*/
std::map<unsigned short, VersionSet> VersionSet::GroupedFromCommandLine(
		pkgCacheFile &Cache, const char **cmdline,
		std::list<VersionSet::Modifier> const &mods,
		unsigned short const &fallback, CacheSetHelper &helper) {
	std::map<unsigned short, VersionSet> versets;
	for (const char **I = cmdline; *I != 0; ++I) {
		unsigned short modID = fallback;
		VersionSet::Version select = VersionSet::NEWEST;
		std::string str = *I;
		bool modifierPresent = false;
		for (std::list<VersionSet::Modifier>::const_iterator mod = mods.begin();
		     mod != mods.end(); ++mod) {
			if (modID == fallback && mod->ID == fallback)
				select = mod->SelectVersion;
			size_t const alength = strlen(mod->Alias);
			switch(mod->Pos) {
			case VersionSet::Modifier::POSTFIX:
				if (str.compare(str.length() - alength, alength,
						mod->Alias, 0, alength) != 0)
					continue;
				str.erase(str.length() - alength);
				modID = mod->ID;
				select = mod->SelectVersion;
				break;
			case VersionSet::Modifier::PREFIX:
				continue;
			case VersionSet::Modifier::NONE:
				continue;
			}
			modifierPresent = true;
			break;
		}

		if (modifierPresent == true) {
			bool const errors = helper.showErrors(false);
			VersionSet const vset = VersionSet::FromString(Cache, std::string(*I), select, helper, true);
			helper.showErrors(errors);
			if (vset.empty() == false) {
				versets[fallback].insert(vset);
				continue;
			}
		}
		versets[modID].insert(VersionSet::FromString(Cache, str, select , helper));
	}
	return versets;
}
									/*}}}*/
// FromCommandLine - Return all versions specified on commandline	/*{{{*/
APT::VersionSet VersionSet::FromCommandLine(pkgCacheFile &Cache, const char **cmdline,
		APT::VersionSet::Version const &fallback, CacheSetHelper &helper) {
	VersionSet verset;
	for (const char **I = cmdline; *I != 0; ++I)
		verset.insert(VersionSet::FromString(Cache, *I, fallback, helper));
	return verset;
}
									/*}}}*/
// FromString - Returns all versions spedcified by a string		/*{{{*/
APT::VersionSet VersionSet::FromString(pkgCacheFile &Cache, std::string pkg,
		APT::VersionSet::Version const &fallback, CacheSetHelper &helper,
		bool const &onlyFromName) {
	std::string ver;
	bool verIsRel = false;
	size_t const vertag = pkg.find_last_of("/=");
	if (vertag != string::npos) {
		ver = pkg.substr(vertag+1);
		verIsRel = (pkg[vertag] == '/');
		pkg.erase(vertag);
	}
	PackageSet pkgset;
	if (onlyFromName == false)
		pkgset = PackageSet::FromString(Cache, pkg, helper);
	else {
		pkgset.insert(PackageSet::FromName(Cache, pkg, helper));
	}

	VersionSet verset;
	bool errors = true;
	if (pkgset.getConstructor() != PackageSet::UNKNOWN)
		errors = helper.showErrors(false);
	for (PackageSet::const_iterator P = pkgset.begin();
	     P != pkgset.end(); ++P) {
		if (vertag == string::npos) {
			verset.insert(VersionSet::FromPackage(Cache, P, fallback, helper));
			continue;
		}
		pkgCache::VerIterator V;
		if (ver == "installed")
			V = getInstalledVer(Cache, P, helper);
		else if (ver == "candidate")
			V = getCandidateVer(Cache, P, helper);
		else if (ver == "newest") {
			if (P->VersionList != 0)
				V = P.VersionList();
			else
				V = helper.canNotFindNewestVer(Cache, P);
		} else {
			pkgVersionMatch Match(ver, (verIsRel == true ? pkgVersionMatch::Release :
					pkgVersionMatch::Version));
			V = Match.Find(P);
			if (V.end() == true) {
				if (verIsRel == true)
					_error->Error(_("Release '%s' for '%s' was not found"),
							ver.c_str(), P.FullName(true).c_str());
				else
					_error->Error(_("Version '%s' for '%s' was not found"),
							ver.c_str(), P.FullName(true).c_str());
				continue;
			}
		}
		if (V.end() == true)
			continue;
		helper.showSelectedVersion(P, V, ver, verIsRel);
		verset.insert(V);
	}
	if (pkgset.getConstructor() != PackageSet::UNKNOWN)
		helper.showErrors(errors);
	return verset;
}
									/*}}}*/
// FromPackage - versions from package based on fallback		/*{{{*/
VersionSet VersionSet::FromPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &P,
		VersionSet::Version const &fallback, CacheSetHelper &helper) {
	VersionSet verset;
	pkgCache::VerIterator V;
	bool showErrors;
	switch(fallback) {
	case VersionSet::ALL:
		if (P->VersionList != 0)
			for (V = P.VersionList(); V.end() != true; ++V)
				verset.insert(V);
		else
			verset.insert(helper.canNotFindAllVer(Cache, P));
		break;
	case VersionSet::CANDANDINST:
		verset.insert(getInstalledVer(Cache, P, helper));
		verset.insert(getCandidateVer(Cache, P, helper));
		break;
	case VersionSet::CANDIDATE:
		verset.insert(getCandidateVer(Cache, P, helper));
		break;
	case VersionSet::INSTALLED:
		verset.insert(getInstalledVer(Cache, P, helper));
		break;
	case VersionSet::CANDINST:
		showErrors = helper.showErrors(false);
		V = getCandidateVer(Cache, P, helper);
		if (V.end() == true)
			V = getInstalledVer(Cache, P, helper);
		helper.showErrors(showErrors);
		if (V.end() == false)
			verset.insert(V);
		else
			verset.insert(helper.canNotFindInstCandVer(Cache, P));
		break;
	case VersionSet::INSTCAND:
		showErrors = helper.showErrors(false);
		V = getInstalledVer(Cache, P, helper);
		if (V.end() == true)
			V = getCandidateVer(Cache, P, helper);
		helper.showErrors(showErrors);
		if (V.end() == false)
			verset.insert(V);
		else
			verset.insert(helper.canNotFindInstCandVer(Cache, P));
		break;
	case VersionSet::NEWEST:
		if (P->VersionList != 0)
			verset.insert(P.VersionList());
		else
			verset.insert(helper.canNotFindNewestVer(Cache, P));
		break;
	}
	return verset;
}
									/*}}}*/
// getCandidateVer - Returns the candidate version of the given package	/*{{{*/
pkgCache::VerIterator VersionSet::getCandidateVer(pkgCacheFile &Cache,
		pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) {
	pkgCache::VerIterator Cand;
	if (Cache.IsPolicyBuilt() == true || Cache.IsDepCacheBuilt() == false)
	{
		if (unlikely(Cache.GetPolicy() == 0))
			return pkgCache::VerIterator(Cache);
		Cand = Cache.GetPolicy()->GetCandidateVer(Pkg);
	} else {
		Cand = Cache[Pkg].CandidateVerIter(Cache);
	}
	if (Cand.end() == true)
		return helper.canNotFindCandidateVer(Cache, Pkg);
	return Cand;
}
									/*}}}*/
// getInstalledVer - Returns the installed version of the given package	/*{{{*/
pkgCache::VerIterator VersionSet::getInstalledVer(pkgCacheFile &Cache,
		pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) {
	if (Pkg->CurrentVer == 0)
		return helper.canNotFindInstalledVer(Cache, Pkg);
	return Pkg.CurrentVer();
}
									/*}}}*/
// canNotFindPkgName - handle the case no package has this name		/*{{{*/
pkgCache::PkgIterator CacheSetHelper::canNotFindPkgName(pkgCacheFile &Cache,
			std::string const &str) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Unable to locate package %s"), str.c_str());
	return pkgCache::PkgIterator(Cache, 0);
}
									/*}}}*/
// canNotFindTask - handle the case no package is found for a task	/*{{{*/
PackageSet CacheSetHelper::canNotFindTask(pkgCacheFile &Cache, std::string pattern) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Couldn't find task '%s'"), pattern.c_str());
	return PackageSet();
}
									/*}}}*/
// canNotFindRegEx - handle the case no package is found by a regex	/*{{{*/
PackageSet CacheSetHelper::canNotFindRegEx(pkgCacheFile &Cache, std::string pattern) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Couldn't find any package by regex '%s'"), pattern.c_str());
	return PackageSet();
}
									/*}}}*/
// canNotFindPackage - handle the case no package is found from a string/*{{{*/
PackageSet CacheSetHelper::canNotFindPackage(pkgCacheFile &Cache, std::string const &str) {
	return PackageSet();
}
									/*}}}*/
// canNotFindAllVer							/*{{{*/
VersionSet CacheSetHelper::canNotFindAllVer(pkgCacheFile &Cache,
		pkgCache::PkgIterator const &Pkg) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Can't select versions from package '%s' as it purely virtual"), Pkg.FullName(true).c_str());
	return VersionSet();
}
									/*}}}*/
// canNotFindInstCandVer						/*{{{*/
VersionSet CacheSetHelper::canNotFindInstCandVer(pkgCacheFile &Cache,
		pkgCache::PkgIterator const &Pkg) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Can't select installed nor candidate version from package '%s' as it has neither of them"), Pkg.FullName(true).c_str());
	return VersionSet();
}
									/*}}}*/
// canNotFindInstCandVer						/*{{{*/
VersionSet CacheSetHelper::canNotFindCandInstVer(pkgCacheFile &Cache,
		pkgCache::PkgIterator const &Pkg) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Can't select installed nor candidate version from package '%s' as it has neither of them"), Pkg.FullName(true).c_str());
	return VersionSet();
}
									/*}}}*/
// canNotFindNewestVer							/*{{{*/
pkgCache::VerIterator CacheSetHelper::canNotFindNewestVer(pkgCacheFile &Cache,
		pkgCache::PkgIterator const &Pkg) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Can't select newest version from package '%s' as it is purely virtual"), Pkg.FullName(true).c_str());
	return pkgCache::VerIterator(Cache, 0);
}
									/*}}}*/
// canNotFindCandidateVer						/*{{{*/
pkgCache::VerIterator CacheSetHelper::canNotFindCandidateVer(pkgCacheFile &Cache,
		pkgCache::PkgIterator const &Pkg) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Can't select candidate version from package %s as it has no candidate"), Pkg.FullName(true).c_str());
	return pkgCache::VerIterator(Cache, 0);
}
									/*}}}*/
// canNotFindInstalledVer						/*{{{*/
pkgCache::VerIterator CacheSetHelper::canNotFindInstalledVer(pkgCacheFile &Cache,
		pkgCache::PkgIterator const &Pkg) {
	if (ShowError == true)
		_error->Insert(ErrorType, _("Can't select installed version from package %s as it is not installed"), Pkg.FullName(true).c_str());
	return pkgCache::VerIterator(Cache, 0);
}
									/*}}}*/
}
Commit	Line	Data
ffee1c2b DK	1	// -- mode: cpp; mode: fold --
	2	// Description /{{{/
	3	/* ######################################################################
	4
	5	Simple wrapper around a std::set to provide a similar interface to
7959c5ed DK	6	a set of cache structures as to the complete set of all structures
7959c5ed DK	7	in the pkgCache. Currently only Package is supported.
ffee1c2b DK	8
	9	##################################################################### */
	10	/}}}/
	11	// Include Files /{{{/
78c32596	12	#include <apt-pkg/aptconfiguration.h>
9ba5aa3b	13	#include <apt-pkg/cachefilter.h>
8fde7239	14	#include <apt-pkg/cacheset.h>
ffee1c2b	15	#include <apt-pkg/error.h>
ffee1c2b	16	#include <apt-pkg/strutl.h>
856d3b06	17	#include <apt-pkg/versionmatch.h>
ffee1c2b DK	18
	19	#include <apti18n.h>
	20
78c32596 DK	21	#include <vector>
78c32596 DK	22
ffee1c2b DK	23	#include <regex.h>
	24	/}}}/
	25	namespace APT {
dc0f01f7	26	// FromTask - Return all packages in the cache from a specific task /{{{/
70e706ad	27	PackageSet PackageSet::FromTask(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) {
bd631595	28	size_t const archfound = pattern.find_last_of(':');
dc0f01f7 DK	29	std::string arch = "native";
	30	if (archfound != std::string::npos) {
	31	arch = pattern.substr(archfound+1);
	32	pattern.erase(archfound);
	33	}
	34
	35	if (pattern[pattern.length() -1] != '^')
c8db3fff	36	return APT::PackageSet(TASK);
dc0f01f7 DK	37	pattern.erase(pattern.length()-1);
dc0f01f7 DK	38
bd631595	39	if (unlikely(Cache.GetPkgCache() == 0 \|\| Cache.GetDepCache() == 0))
c8db3fff	40	return APT::PackageSet(TASK);
bd631595	41
c8db3fff	42	PackageSet pkgset(TASK);
dc0f01f7 DK	43	// get the records
	44	pkgRecords Recs(Cache);
	45
	46	// build regexp for the task
	47	regex_t Pattern;
	48	char S[300];
	49	snprintf(S, sizeof(S), "^Task:.*[, ]%s([, ]\|$)", pattern.c_str());
	50	if(regcomp(&Pattern,S, REG_EXTENDED \| REG_NOSUB \| REG_NEWLINE) != 0) {
	51	_error->Error("Failed to compile task regexp");
	52	return pkgset;
	53	}
	54
	55	for (pkgCache::GrpIterator Grp = Cache->GrpBegin(); Grp.end() == false; ++Grp) {
	56	pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
	57	if (Pkg.end() == true)
	58	continue;
	59	pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache);
	60	if(ver.end() == true)
	61	continue;
	62
	63	pkgRecords::Parser &parser = Recs.Lookup(ver.FileList());
	64	const char start, end;
	65	parser.GetRec(start,end);
	66	unsigned int const length = end - start;
	67	char buf[length];
	68	strncpy(buf, start, length);
	69	buf[length-1] = '\0';
70e706ad DK	70	if (regexec(&Pattern, buf, 0, 0, 0) != 0)
	71	continue;
	72
	73	pkgset.insert(Pkg);
dc0f01f7	74	}
70e706ad	75	regfree(&Pattern);
dc0f01f7 DK	76
dc0f01f7 DK	77	if (pkgset.empty() == true)
70e706ad	78	return helper.canNotFindTask(Cache, pattern);
dc0f01f7	79
70e706ad	80	helper.showTaskSelection(pkgset, pattern);
dc0f01f7 DK	81	return pkgset;
	82	}
	83	/}}}/
ffee1c2b	84	// FromRegEx - Return all packages in the cache matching a pattern /{{{/
70e706ad	85	PackageSet PackageSet::FromRegEx(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) {
6e235c66	86	static const char * const isregex = ".?+*\|[^$";
6e235c66	87	if (pattern.find_first_of(isregex) == std::string::npos)
c8db3fff	88	return PackageSet(REGEX);
ffee1c2b	89
6e235c66	90	size_t archfound = pattern.find_last_of(':');
dc0f01f7	91	std::string arch = "native";
6e235c66 DK	92	if (archfound != std::string::npos) {
	93	arch = pattern.substr(archfound+1);
	94	if (arch.find_first_of(isregex) == std::string::npos)
	95	pattern.erase(archfound);
	96	else
	97	arch = "native";
	98	}
	99
bd631595	100	if (unlikely(Cache.GetPkgCache() == 0))
c8db3fff	101	return PackageSet(REGEX);
bd631595	102
9ba5aa3b DK	103	APT::CacheFilter::PackageNameMatchesRegEx regexfilter(pattern);
9ba5aa3b DK	104
c8db3fff	105	PackageSet pkgset(REGEX);
9ba5aa3b DK	106	for (pkgCache::GrpIterator Grp = Cache.GetPkgCache()->GrpBegin(); Grp.end() == false; ++Grp) {
9ba5aa3b DK	107	if (regexfilter(Grp) == false)
ffee1c2b	108	continue;
6e235c66	109	pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
78c32596	110	if (Pkg.end() == true) {
6e235c66 DK	111	if (archfound == std::string::npos) {
	112	std::vector<std::string> archs = APT::Configuration::getArchitectures();
	113	for (std::vector<std::string>::const_iterator a = archs.begin();
	114	a != archs.end() && Pkg.end() != true; ++a)
	115	Pkg = Grp.FindPkg(*a);
78c32596 DK	116	}
	117	if (Pkg.end() == true)
	118	continue;
	119	}
ffee1c2b	120
ffee1c2b DK	121	pkgset.insert(Pkg);
ffee1c2b DK	122	}
ffee1c2b	123
70e706ad DK	124	if (pkgset.empty() == true)
	125	return helper.canNotFindRegEx(Cache, pattern);
	126
	127	helper.showRegExSelection(pkgset, pattern);
78c32596 DK	128	return pkgset;
	129	}
	130	/}}}/
bd631595 DK	131	// FromName - Returns the package defined by this string /{{{/
	132	pkgCache::PkgIterator PackageSet::FromName(pkgCacheFile &Cache,
	133	std::string const &str, CacheSetHelper &helper) {
	134	std::string pkg = str;
	135	size_t archfound = pkg.find_last_of(':');
	136	std::string arch;
	137	if (archfound != std::string::npos) {
	138	arch = pkg.substr(archfound+1);
	139	pkg.erase(archfound);
	140	}
	141
	142	if (Cache.GetPkgCache() == 0)
	143	return pkgCache::PkgIterator(Cache, 0);
	144
	145	pkgCache::PkgIterator Pkg(Cache, 0);
	146	if (arch.empty() == true) {
	147	pkgCache::GrpIterator Grp = Cache.GetPkgCache()->FindGrp(pkg);
	148	if (Grp.end() == false)
	149	Pkg = Grp.FindPreferredPkg();
	150	} else
	151	Pkg = Cache.GetPkgCache()->FindPkg(pkg, arch);
	152
	153	if (Pkg.end() == true)
	154	return helper.canNotFindPkgName(Cache, str);
	155	return Pkg;
	156	}
	157	/}}}/
9cc83a6f DK	158	// GroupedFromCommandLine - Return all versions specified on commandline/{{{/
	159	std::map<unsigned short, PackageSet> PackageSet::GroupedFromCommandLine(
	160	pkgCacheFile &Cache, const char **cmdline,
	161	std::list<PackageSet::Modifier> const &mods,
70e706ad	162	unsigned short const &fallback, CacheSetHelper &helper) {
9cc83a6f DK	163	std::map<unsigned short, PackageSet> pkgsets;
	164	for (const char *I = cmdline; I != 0; ++I) {
	165	unsigned short modID = fallback;
	166	std::string str = *I;
bd631595	167	bool modifierPresent = false;
9cc83a6f DK	168	for (std::list<PackageSet::Modifier>::const_iterator mod = mods.begin();
	169	mod != mods.end(); ++mod) {
	170	size_t const alength = strlen(mod->Alias);
	171	switch(mod->Pos) {
	172	case PackageSet::Modifier::POSTFIX:
	173	if (str.compare(str.length() - alength, alength,
55c59998	174	mod->Alias, 0, alength) != 0)
9cc83a6f DK	175	continue;
	176	str.erase(str.length() - alength);
	177	modID = mod->ID;
	178	break;
	179	case PackageSet::Modifier::PREFIX:
	180	continue;
	181	case PackageSet::Modifier::NONE:
	182	continue;
	183	}
bd631595	184	modifierPresent = true;
9cc83a6f DK	185	break;
9cc83a6f DK	186	}
bd631595 DK	187	if (modifierPresent == true) {
	188	bool const errors = helper.showErrors(false);
	189	pkgCache::PkgIterator Pkg = FromName(Cache, *I, helper);
	190	helper.showErrors(errors);
	191	if (Pkg.end() == false) {
	192	pkgsets[fallback].insert(Pkg);
	193	continue;
	194	}
	195	}
70e706ad	196	pkgsets[modID].insert(PackageSet::FromString(Cache, str, helper));
9cc83a6f DK	197	}
	198	return pkgsets;
	199	}
	200	/}}}/
78c32596	201	// FromCommandLine - Return all packages specified on commandline /{{{/
70e706ad	202	PackageSet PackageSet::FromCommandLine(pkgCacheFile &Cache, const char **cmdline, CacheSetHelper &helper) {
78c32596	203	PackageSet pkgset;
9f1f17cc	204	for (const char *I = cmdline; I != 0; ++I) {
70e706ad	205	PackageSet pset = FromString(Cache, *I, helper);
856d3b06 DK	206	pkgset.insert(pset.begin(), pset.end());
	207	}
	208	return pkgset;
	209	}
	210	/}}}/
	211	// FromString - Return all packages matching a specific string /{{{/
70e706ad	212	PackageSet PackageSet::FromString(pkgCacheFile &Cache, std::string const &str, CacheSetHelper &helper) {
48c39e32 DK	213	_error->PushToStack();
48c39e32 DK	214
bd631595 DK	215	PackageSet pkgset;
	216	pkgCache::PkgIterator Pkg = FromName(Cache, str, helper);
	217	if (Pkg.end() == false)
	218	pkgset.insert(Pkg);
	219	else {
	220	pkgset = FromTask(Cache, str, helper);
	221	if (pkgset.empty() == true) {
	222	pkgset = FromRegEx(Cache, str, helper);
	223	if (pkgset.empty() == true)
	224	pkgset = helper.canNotFindPackage(Cache, str);
	225	}
48c39e32	226	}
dc0f01f7	227
bd631595	228	if (pkgset.empty() == false)
48c39e32 DK	229	_error->RevertToStack();
	230	else
	231	_error->MergeWithStack();
bd631595	232	return pkgset;
856d3b06 DK	233	}
856d3b06 DK	234	/}}}/
55c59998 DK	235	// GroupedFromCommandLine - Return all versions specified on commandline/{{{/
	236	std::map<unsigned short, VersionSet> VersionSet::GroupedFromCommandLine(
	237	pkgCacheFile &Cache, const char **cmdline,
	238	std::list<VersionSet::Modifier> const &mods,
70e706ad	239	unsigned short const &fallback, CacheSetHelper &helper) {
55c59998 DK	240	std::map<unsigned short, VersionSet> versets;
	241	for (const char *I = cmdline; I != 0; ++I) {
	242	unsigned short modID = fallback;
	243	VersionSet::Version select = VersionSet::NEWEST;
	244	std::string str = *I;
bd631595	245	bool modifierPresent = false;
55c59998 DK	246	for (std::list<VersionSet::Modifier>::const_iterator mod = mods.begin();
	247	mod != mods.end(); ++mod) {
	248	if (modID == fallback && mod->ID == fallback)
	249	select = mod->SelectVersion;
	250	size_t const alength = strlen(mod->Alias);
	251	switch(mod->Pos) {
	252	case VersionSet::Modifier::POSTFIX:
	253	if (str.compare(str.length() - alength, alength,
	254	mod->Alias, 0, alength) != 0)
	255	continue;
	256	str.erase(str.length() - alength);
	257	modID = mod->ID;
	258	select = mod->SelectVersion;
	259	break;
	260	case VersionSet::Modifier::PREFIX:
	261	continue;
	262	case VersionSet::Modifier::NONE:
	263	continue;
	264	}
bd631595	265	modifierPresent = true;
55c59998 DK	266	break;
55c59998 DK	267	}
bd631595 DK	268
	269	if (modifierPresent == true) {
	270	bool const errors = helper.showErrors(false);
	271	VersionSet const vset = VersionSet::FromString(Cache, std::string(*I), select, helper, true);
	272	helper.showErrors(errors);
	273	if (vset.empty() == false) {
	274	versets[fallback].insert(vset);
	275	continue;
	276	}
	277	}
70e706ad	278	versets[modID].insert(VersionSet::FromString(Cache, str, select , helper));
55c59998 DK	279	}
	280	return versets;
	281	}
	282	/}}}/
856d3b06 DK	283	// FromCommandLine - Return all versions specified on commandline /{{{/
856d3b06 DK	284	APT::VersionSet VersionSet::FromCommandLine(pkgCacheFile &Cache, const char **cmdline,
70e706ad	285	APT::VersionSet::Version const &fallback, CacheSetHelper &helper) {
856d3b06	286	VersionSet verset;
bd631595 DK	287	for (const char *I = cmdline; I != 0; ++I)
bd631595 DK	288	verset.insert(VersionSet::FromString(Cache, *I, fallback, helper));
55c59998 DK	289	return verset;
	290	}
	291	/}}}/
	292	// FromString - Returns all versions spedcified by a string /{{{/
	293	APT::VersionSet VersionSet::FromString(pkgCacheFile &Cache, std::string pkg,
bd631595 DK	294	APT::VersionSet::Version const &fallback, CacheSetHelper &helper,
bd631595 DK	295	bool const &onlyFromName) {
55c59998 DK	296	std::string ver;
	297	bool verIsRel = false;
	298	size_t const vertag = pkg.find_last_of("/=");
	299	if (vertag != string::npos) {
	300	ver = pkg.substr(vertag+1);
	301	verIsRel = (pkg[vertag] == '/');
	302	pkg.erase(vertag);
	303	}
bd631595 DK	304	PackageSet pkgset;
	305	if (onlyFromName == false)
	306	pkgset = PackageSet::FromString(Cache, pkg, helper);
	307	else {
	308	pkgset.insert(PackageSet::FromName(Cache, pkg, helper));
	309	}
	310
55c59998	311	VersionSet verset;
c8db3fff DK	312	bool errors = true;
	313	if (pkgset.getConstructor() != PackageSet::UNKNOWN)
	314	errors = helper.showErrors(false);
55c59998 DK	315	for (PackageSet::const_iterator P = pkgset.begin();
	316	P != pkgset.end(); ++P) {
	317	if (vertag == string::npos) {
fb83c1d0	318	verset.insert(VersionSet::FromPackage(Cache, P, fallback, helper));
55c59998	319	continue;
856d3b06	320	}
55c59998 DK	321	pkgCache::VerIterator V;
55c59998 DK	322	if (ver == "installed")
70e706ad	323	V = getInstalledVer(Cache, P, helper);
55c59998	324	else if (ver == "candidate")
70e706ad	325	V = getCandidateVer(Cache, P, helper);
f1a58ff8 DK	326	else if (ver == "newest") {
	327	if (P->VersionList != 0)
	328	V = P.VersionList();
	329	else
	330	V = helper.canNotFindNewestVer(Cache, P);
	331	} else {
55c59998 DK	332	pkgVersionMatch Match(ver, (verIsRel == true ? pkgVersionMatch::Release :
	333	pkgVersionMatch::Version));
	334	V = Match.Find(P);
	335	if (V.end() == true) {
	336	if (verIsRel == true)
	337	_error->Error(_("Release '%s' for '%s' was not found"),
	338	ver.c_str(), P.FullName(true).c_str());
	339	else
	340	_error->Error(_("Version '%s' for '%s' was not found"),
	341	ver.c_str(), P.FullName(true).c_str());
84910ad5 DK	342	continue;
84910ad5 DK	343	}
78c32596	344	}
55c59998 DK	345	if (V.end() == true)
55c59998 DK	346	continue;
70e706ad	347	helper.showSelectedVersion(P, V, ver, verIsRel);
55c59998	348	verset.insert(V);
78c32596	349	}
c8db3fff DK	350	if (pkgset.getConstructor() != PackageSet::UNKNOWN)
c8db3fff DK	351	helper.showErrors(errors);
856d3b06 DK	352	return verset;
	353	}
	354	/}}}/
fb83c1d0 DK	355	// FromPackage - versions from package based on fallback /{{{/
	356	VersionSet VersionSet::FromPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &P,
	357	VersionSet::Version const &fallback, CacheSetHelper &helper) {
	358	VersionSet verset;
84910ad5	359	pkgCache::VerIterator V;
70e706ad	360	bool showErrors;
84910ad5 DK	361	switch(fallback) {
	362	case VersionSet::ALL:
	363	if (P->VersionList != 0)
	364	for (V = P.VersionList(); V.end() != true; ++V)
	365	verset.insert(V);
84910ad5	366	else
70e706ad	367	verset.insert(helper.canNotFindAllVer(Cache, P));
84910ad5 DK	368	break;
84910ad5 DK	369	case VersionSet::CANDANDINST:
70e706ad DK	370	verset.insert(getInstalledVer(Cache, P, helper));
70e706ad DK	371	verset.insert(getCandidateVer(Cache, P, helper));
84910ad5 DK	372	break;
84910ad5 DK	373	case VersionSet::CANDIDATE:
70e706ad	374	verset.insert(getCandidateVer(Cache, P, helper));
84910ad5 DK	375	break;
84910ad5 DK	376	case VersionSet::INSTALLED:
70e706ad	377	verset.insert(getInstalledVer(Cache, P, helper));
84910ad5 DK	378	break;
84910ad5 DK	379	case VersionSet::CANDINST:
70e706ad DK	380	showErrors = helper.showErrors(false);
70e706ad DK	381	V = getCandidateVer(Cache, P, helper);
84910ad5	382	if (V.end() == true)
70e706ad DK	383	V = getInstalledVer(Cache, P, helper);
70e706ad DK	384	helper.showErrors(showErrors);
84910ad5 DK	385	if (V.end() == false)
84910ad5 DK	386	verset.insert(V);
84910ad5	387	else
70e706ad	388	verset.insert(helper.canNotFindInstCandVer(Cache, P));
84910ad5 DK	389	break;
84910ad5 DK	390	case VersionSet::INSTCAND:
70e706ad DK	391	showErrors = helper.showErrors(false);
70e706ad DK	392	V = getInstalledVer(Cache, P, helper);
84910ad5	393	if (V.end() == true)
70e706ad DK	394	V = getCandidateVer(Cache, P, helper);
70e706ad DK	395	helper.showErrors(showErrors);
84910ad5 DK	396	if (V.end() == false)
84910ad5 DK	397	verset.insert(V);
84910ad5	398	else
70e706ad	399	verset.insert(helper.canNotFindInstCandVer(Cache, P));
84910ad5 DK	400	break;
	401	case VersionSet::NEWEST:
	402	if (P->VersionList != 0)
	403	verset.insert(P.VersionList());
84910ad5	404	else
70e706ad	405	verset.insert(helper.canNotFindNewestVer(Cache, P));
84910ad5 DK	406	break;
84910ad5 DK	407	}
fb83c1d0	408	return verset;
84910ad5 DK	409	}
84910ad5 DK	410	/}}}/
856d3b06 DK	411	// getCandidateVer - Returns the candidate version of the given package /{{{/
856d3b06 DK	412	pkgCache::VerIterator VersionSet::getCandidateVer(pkgCacheFile &Cache,
70e706ad	413	pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) {
a8ef7efd	414	pkgCache::VerIterator Cand;
2fbfb111 DK	415	if (Cache.IsPolicyBuilt() == true \|\| Cache.IsDepCacheBuilt() == false)
2fbfb111 DK	416	{
bd631595 DK	417	if (unlikely(Cache.GetPolicy() == 0))
bd631595 DK	418	return pkgCache::VerIterator(Cache);
a8ef7efd	419	Cand = Cache.GetPolicy()->GetCandidateVer(Pkg);
2fbfb111 DK	420	} else {
2fbfb111 DK	421	Cand = Cache[Pkg].CandidateVerIter(Cache);
a8ef7efd	422	}
70e706ad DK	423	if (Cand.end() == true)
70e706ad DK	424	return helper.canNotFindCandidateVer(Cache, Pkg);
856d3b06 DK	425	return Cand;
	426	}
	427	/}}}/
	428	// getInstalledVer - Returns the installed version of the given package /{{{/
	429	pkgCache::VerIterator VersionSet::getInstalledVer(pkgCacheFile &Cache,
70e706ad DK	430	pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) {
	431	if (Pkg->CurrentVer == 0)
	432	return helper.canNotFindInstalledVer(Cache, Pkg);
856d3b06	433	return Pkg.CurrentVer();
ffee1c2b DK	434	}
ffee1c2b DK	435	/}}}/
bd631595 DK	436	// canNotFindPkgName - handle the case no package has this name /{{{/
	437	pkgCache::PkgIterator CacheSetHelper::canNotFindPkgName(pkgCacheFile &Cache,
	438	std::string const &str) {
	439	if (ShowError == true)
cd7bbc47	440	_error->Insert(ErrorType, _("Unable to locate package %s"), str.c_str());
bd631595 DK	441	return pkgCache::PkgIterator(Cache, 0);
	442	}
	443	/}}}/
70e706ad DK	444	// canNotFindTask - handle the case no package is found for a task /{{{/
	445	PackageSet CacheSetHelper::canNotFindTask(pkgCacheFile &Cache, std::string pattern) {
	446	if (ShowError == true)
cd7bbc47	447	_error->Insert(ErrorType, _("Couldn't find task '%s'"), pattern.c_str());
70e706ad DK	448	return PackageSet();
	449	}
	450	/}}}/
	451	// canNotFindRegEx - handle the case no package is found by a regex /{{{/
	452	PackageSet CacheSetHelper::canNotFindRegEx(pkgCacheFile &Cache, std::string pattern) {
	453	if (ShowError == true)
cd7bbc47	454	_error->Insert(ErrorType, _("Couldn't find any package by regex '%s'"), pattern.c_str());
70e706ad DK	455	return PackageSet();
	456	}
	457	/}}}/
	458	// canNotFindPackage - handle the case no package is found from a string/{{{/
	459	PackageSet CacheSetHelper::canNotFindPackage(pkgCacheFile &Cache, std::string const &str) {
70e706ad DK	460	return PackageSet();
	461	}
	462	/}}}/
	463	// canNotFindAllVer /{{{/
	464	VersionSet CacheSetHelper::canNotFindAllVer(pkgCacheFile &Cache,
	465	pkgCache::PkgIterator const &Pkg) {
	466	if (ShowError == true)
cd7bbc47	467	_error->Insert(ErrorType, _("Can't select versions from package '%s' as it purely virtual"), Pkg.FullName(true).c_str());
70e706ad DK	468	return VersionSet();
	469	}
	470	/}}}/
	471	// canNotFindInstCandVer /{{{/
	472	VersionSet CacheSetHelper::canNotFindInstCandVer(pkgCacheFile &Cache,
	473	pkgCache::PkgIterator const &Pkg) {
	474	if (ShowError == true)
cd7bbc47	475	_error->Insert(ErrorType, _("Can't select installed nor candidate version from package '%s' as it has neither of them"), Pkg.FullName(true).c_str());
70e706ad DK	476	return VersionSet();
	477	}
	478	/}}}/
cf28bcad DK	479	// canNotFindInstCandVer /{{{/
	480	VersionSet CacheSetHelper::canNotFindCandInstVer(pkgCacheFile &Cache,
	481	pkgCache::PkgIterator const &Pkg) {
	482	if (ShowError == true)
cd7bbc47	483	_error->Insert(ErrorType, _("Can't select installed nor candidate version from package '%s' as it has neither of them"), Pkg.FullName(true).c_str());
cf28bcad DK	484	return VersionSet();
	485	}
	486	/}}}/
70e706ad DK	487	// canNotFindNewestVer /{{{/
	488	pkgCache::VerIterator CacheSetHelper::canNotFindNewestVer(pkgCacheFile &Cache,
	489	pkgCache::PkgIterator const &Pkg) {
	490	if (ShowError == true)
cd7bbc47	491	_error->Insert(ErrorType, _("Can't select newest version from package '%s' as it is purely virtual"), Pkg.FullName(true).c_str());
c8db3fff	492	return pkgCache::VerIterator(Cache, 0);
70e706ad DK	493	}
	494	/}}}/
	495	// canNotFindCandidateVer /{{{/
	496	pkgCache::VerIterator CacheSetHelper::canNotFindCandidateVer(pkgCacheFile &Cache,
	497	pkgCache::PkgIterator const &Pkg) {
	498	if (ShowError == true)
cd7bbc47	499	_error->Insert(ErrorType, _("Can't select candidate version from package %s as it has no candidate"), Pkg.FullName(true).c_str());
c8db3fff	500	return pkgCache::VerIterator(Cache, 0);
70e706ad DK	501	}
	502	/}}}/
	503	// canNotFindInstalledVer /{{{/
	504	pkgCache::VerIterator CacheSetHelper::canNotFindInstalledVer(pkgCacheFile &Cache,
	505	pkgCache::PkgIterator const &Pkg) {
	506	if (ShowError == true)
cd7bbc47	507	_error->Insert(ErrorType, _("Can't select installed version from package %s as it is not installed"), Pkg.FullName(true).c_str());
c8db3fff	508	return pkgCache::VerIterator(Cache, 0);
70e706ad DK	509	}
70e706ad DK	510	/}}}/
ffee1c2b	511	}