[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 <config.h>

#include <apt-pkg/aptconfiguration.h>
#include <apt-pkg/cachefile.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 <apt-pkg/pkgrecords.h>
#include <apt-pkg/policy.h>

#include <vector>

#include <regex.h>

#include <apti18n.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 != std::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 == std::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 is 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 /{{{/
ea542140 DK	12	#include <config.h>
ea542140 DK	13
78c32596	14	#include <apt-pkg/aptconfiguration.h>
472ff00e	15	#include <apt-pkg/cachefile.h>
9ba5aa3b	16	#include <apt-pkg/cachefilter.h>
8fde7239	17	#include <apt-pkg/cacheset.h>
ffee1c2b	18	#include <apt-pkg/error.h>
ffee1c2b	19	#include <apt-pkg/strutl.h>
856d3b06	20	#include <apt-pkg/versionmatch.h>
472ff00e DK	21	#include <apt-pkg/pkgrecords.h>
472ff00e DK	22	#include <apt-pkg/policy.h>
ffee1c2b	23
78c32596 DK	24	#include <vector>
78c32596 DK	25
ffee1c2b	26	#include <regex.h>
ea542140 DK	27
ea542140 DK	28	#include <apti18n.h>
ffee1c2b DK	29	/}}}/
ffee1c2b DK	30	namespace APT {
dc0f01f7	31	// FromTask - Return all packages in the cache from a specific task /{{{/
70e706ad	32	PackageSet PackageSet::FromTask(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) {
bd631595	33	size_t const archfound = pattern.find_last_of(':');
dc0f01f7 DK	34	std::string arch = "native";
	35	if (archfound != std::string::npos) {
	36	arch = pattern.substr(archfound+1);
	37	pattern.erase(archfound);
	38	}
	39
	40	if (pattern[pattern.length() -1] != '^')
c8db3fff	41	return APT::PackageSet(TASK);
dc0f01f7 DK	42	pattern.erase(pattern.length()-1);
dc0f01f7 DK	43
bd631595	44	if (unlikely(Cache.GetPkgCache() == 0 \|\| Cache.GetDepCache() == 0))
c8db3fff	45	return APT::PackageSet(TASK);
bd631595	46
c8db3fff	47	PackageSet pkgset(TASK);
dc0f01f7 DK	48	// get the records
	49	pkgRecords Recs(Cache);
	50
	51	// build regexp for the task
	52	regex_t Pattern;
	53	char S[300];
	54	snprintf(S, sizeof(S), "^Task:.*[, ]%s([, ]\|$)", pattern.c_str());
	55	if(regcomp(&Pattern,S, REG_EXTENDED \| REG_NOSUB \| REG_NEWLINE) != 0) {
	56	_error->Error("Failed to compile task regexp");
	57	return pkgset;
	58	}
	59
	60	for (pkgCache::GrpIterator Grp = Cache->GrpBegin(); Grp.end() == false; ++Grp) {
	61	pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
	62	if (Pkg.end() == true)
	63	continue;
	64	pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache);
	65	if(ver.end() == true)
	66	continue;
	67
	68	pkgRecords::Parser &parser = Recs.Lookup(ver.FileList());
	69	const char start, end;
	70	parser.GetRec(start,end);
	71	unsigned int const length = end - start;
	72	char buf[length];
	73	strncpy(buf, start, length);
	74	buf[length-1] = '\0';
70e706ad DK	75	if (regexec(&Pattern, buf, 0, 0, 0) != 0)
	76	continue;
	77
	78	pkgset.insert(Pkg);
dc0f01f7	79	}
70e706ad	80	regfree(&Pattern);
dc0f01f7 DK	81
dc0f01f7 DK	82	if (pkgset.empty() == true)
70e706ad	83	return helper.canNotFindTask(Cache, pattern);
dc0f01f7	84
70e706ad	85	helper.showTaskSelection(pkgset, pattern);
dc0f01f7 DK	86	return pkgset;
	87	}
	88	/}}}/
ffee1c2b	89	// FromRegEx - Return all packages in the cache matching a pattern /{{{/
70e706ad	90	PackageSet PackageSet::FromRegEx(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) {
6e235c66	91	static const char * const isregex = ".?+*\|[^$";
6e235c66	92	if (pattern.find_first_of(isregex) == std::string::npos)
c8db3fff	93	return PackageSet(REGEX);
ffee1c2b	94
6e235c66	95	size_t archfound = pattern.find_last_of(':');
dc0f01f7	96	std::string arch = "native";
6e235c66 DK	97	if (archfound != std::string::npos) {
	98	arch = pattern.substr(archfound+1);
	99	if (arch.find_first_of(isregex) == std::string::npos)
	100	pattern.erase(archfound);
	101	else
	102	arch = "native";
	103	}
	104
bd631595	105	if (unlikely(Cache.GetPkgCache() == 0))
c8db3fff	106	return PackageSet(REGEX);
bd631595	107
9ba5aa3b DK	108	APT::CacheFilter::PackageNameMatchesRegEx regexfilter(pattern);
9ba5aa3b DK	109
c8db3fff	110	PackageSet pkgset(REGEX);
9ba5aa3b DK	111	for (pkgCache::GrpIterator Grp = Cache.GetPkgCache()->GrpBegin(); Grp.end() == false; ++Grp) {
9ba5aa3b DK	112	if (regexfilter(Grp) == false)
ffee1c2b	113	continue;
6e235c66	114	pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
78c32596	115	if (Pkg.end() == true) {
6e235c66 DK	116	if (archfound == std::string::npos) {
	117	std::vector<std::string> archs = APT::Configuration::getArchitectures();
	118	for (std::vector<std::string>::const_iterator a = archs.begin();
	119	a != archs.end() && Pkg.end() != true; ++a)
	120	Pkg = Grp.FindPkg(*a);
78c32596 DK	121	}
	122	if (Pkg.end() == true)
	123	continue;
	124	}
ffee1c2b	125
ffee1c2b DK	126	pkgset.insert(Pkg);
ffee1c2b DK	127	}
ffee1c2b	128
70e706ad DK	129	if (pkgset.empty() == true)
	130	return helper.canNotFindRegEx(Cache, pattern);
	131
	132	helper.showRegExSelection(pkgset, pattern);
78c32596 DK	133	return pkgset;
	134	}
	135	/}}}/
bd631595 DK	136	// FromName - Returns the package defined by this string /{{{/
	137	pkgCache::PkgIterator PackageSet::FromName(pkgCacheFile &Cache,
	138	std::string const &str, CacheSetHelper &helper) {
	139	std::string pkg = str;
	140	size_t archfound = pkg.find_last_of(':');
	141	std::string arch;
	142	if (archfound != std::string::npos) {
	143	arch = pkg.substr(archfound+1);
	144	pkg.erase(archfound);
	145	}
	146
	147	if (Cache.GetPkgCache() == 0)
	148	return pkgCache::PkgIterator(Cache, 0);
	149
	150	pkgCache::PkgIterator Pkg(Cache, 0);
	151	if (arch.empty() == true) {
	152	pkgCache::GrpIterator Grp = Cache.GetPkgCache()->FindGrp(pkg);
	153	if (Grp.end() == false)
	154	Pkg = Grp.FindPreferredPkg();
	155	} else
	156	Pkg = Cache.GetPkgCache()->FindPkg(pkg, arch);
	157
	158	if (Pkg.end() == true)
	159	return helper.canNotFindPkgName(Cache, str);
	160	return Pkg;
	161	}
	162	/}}}/
9cc83a6f DK	163	// GroupedFromCommandLine - Return all versions specified on commandline/{{{/
	164	std::map<unsigned short, PackageSet> PackageSet::GroupedFromCommandLine(
	165	pkgCacheFile &Cache, const char **cmdline,
	166	std::list<PackageSet::Modifier> const &mods,
70e706ad	167	unsigned short const &fallback, CacheSetHelper &helper) {
9cc83a6f DK	168	std::map<unsigned short, PackageSet> pkgsets;
	169	for (const char *I = cmdline; I != 0; ++I) {
	170	unsigned short modID = fallback;
	171	std::string str = *I;
bd631595	172	bool modifierPresent = false;
9cc83a6f DK	173	for (std::list<PackageSet::Modifier>::const_iterator mod = mods.begin();
	174	mod != mods.end(); ++mod) {
	175	size_t const alength = strlen(mod->Alias);
	176	switch(mod->Pos) {
	177	case PackageSet::Modifier::POSTFIX:
	178	if (str.compare(str.length() - alength, alength,
55c59998	179	mod->Alias, 0, alength) != 0)
9cc83a6f DK	180	continue;
	181	str.erase(str.length() - alength);
	182	modID = mod->ID;
	183	break;
	184	case PackageSet::Modifier::PREFIX:
	185	continue;
	186	case PackageSet::Modifier::NONE:
	187	continue;
	188	}
bd631595	189	modifierPresent = true;
9cc83a6f DK	190	break;
9cc83a6f DK	191	}
bd631595 DK	192	if (modifierPresent == true) {
	193	bool const errors = helper.showErrors(false);
	194	pkgCache::PkgIterator Pkg = FromName(Cache, *I, helper);
	195	helper.showErrors(errors);
	196	if (Pkg.end() == false) {
	197	pkgsets[fallback].insert(Pkg);
	198	continue;
	199	}
	200	}
70e706ad	201	pkgsets[modID].insert(PackageSet::FromString(Cache, str, helper));
9cc83a6f DK	202	}
	203	return pkgsets;
	204	}
	205	/}}}/
78c32596	206	// FromCommandLine - Return all packages specified on commandline /{{{/
70e706ad	207	PackageSet PackageSet::FromCommandLine(pkgCacheFile &Cache, const char **cmdline, CacheSetHelper &helper) {
78c32596	208	PackageSet pkgset;
9f1f17cc	209	for (const char *I = cmdline; I != 0; ++I) {
70e706ad	210	PackageSet pset = FromString(Cache, *I, helper);
856d3b06 DK	211	pkgset.insert(pset.begin(), pset.end());
	212	}
	213	return pkgset;
	214	}
	215	/}}}/
	216	// FromString - Return all packages matching a specific string /{{{/
70e706ad	217	PackageSet PackageSet::FromString(pkgCacheFile &Cache, std::string const &str, CacheSetHelper &helper) {
48c39e32 DK	218	_error->PushToStack();
48c39e32 DK	219
bd631595 DK	220	PackageSet pkgset;
	221	pkgCache::PkgIterator Pkg = FromName(Cache, str, helper);
	222	if (Pkg.end() == false)
	223	pkgset.insert(Pkg);
	224	else {
	225	pkgset = FromTask(Cache, str, helper);
	226	if (pkgset.empty() == true) {
	227	pkgset = FromRegEx(Cache, str, helper);
	228	if (pkgset.empty() == true)
	229	pkgset = helper.canNotFindPackage(Cache, str);
	230	}
48c39e32	231	}
dc0f01f7	232
bd631595	233	if (pkgset.empty() == false)
48c39e32 DK	234	_error->RevertToStack();
	235	else
	236	_error->MergeWithStack();
bd631595	237	return pkgset;
856d3b06 DK	238	}
856d3b06 DK	239	/}}}/
55c59998 DK	240	// GroupedFromCommandLine - Return all versions specified on commandline/{{{/
	241	std::map<unsigned short, VersionSet> VersionSet::GroupedFromCommandLine(
	242	pkgCacheFile &Cache, const char **cmdline,
	243	std::list<VersionSet::Modifier> const &mods,
70e706ad	244	unsigned short const &fallback, CacheSetHelper &helper) {
55c59998 DK	245	std::map<unsigned short, VersionSet> versets;
	246	for (const char *I = cmdline; I != 0; ++I) {
	247	unsigned short modID = fallback;
	248	VersionSet::Version select = VersionSet::NEWEST;
	249	std::string str = *I;
bd631595	250	bool modifierPresent = false;
55c59998 DK	251	for (std::list<VersionSet::Modifier>::const_iterator mod = mods.begin();
	252	mod != mods.end(); ++mod) {
	253	if (modID == fallback && mod->ID == fallback)
	254	select = mod->SelectVersion;
	255	size_t const alength = strlen(mod->Alias);
	256	switch(mod->Pos) {
	257	case VersionSet::Modifier::POSTFIX:
	258	if (str.compare(str.length() - alength, alength,
	259	mod->Alias, 0, alength) != 0)
	260	continue;
	261	str.erase(str.length() - alength);
	262	modID = mod->ID;
	263	select = mod->SelectVersion;
	264	break;
	265	case VersionSet::Modifier::PREFIX:
	266	continue;
	267	case VersionSet::Modifier::NONE:
	268	continue;
	269	}
bd631595	270	modifierPresent = true;
55c59998 DK	271	break;
55c59998 DK	272	}
bd631595 DK	273
	274	if (modifierPresent == true) {
	275	bool const errors = helper.showErrors(false);
	276	VersionSet const vset = VersionSet::FromString(Cache, std::string(*I), select, helper, true);
	277	helper.showErrors(errors);
	278	if (vset.empty() == false) {
	279	versets[fallback].insert(vset);
	280	continue;
	281	}
	282	}
70e706ad	283	versets[modID].insert(VersionSet::FromString(Cache, str, select , helper));
55c59998 DK	284	}
	285	return versets;
	286	}
	287	/}}}/
856d3b06 DK	288	// FromCommandLine - Return all versions specified on commandline /{{{/
856d3b06 DK	289	APT::VersionSet VersionSet::FromCommandLine(pkgCacheFile &Cache, const char **cmdline,
70e706ad	290	APT::VersionSet::Version const &fallback, CacheSetHelper &helper) {
856d3b06	291	VersionSet verset;
bd631595 DK	292	for (const char *I = cmdline; I != 0; ++I)
bd631595 DK	293	verset.insert(VersionSet::FromString(Cache, *I, fallback, helper));
55c59998 DK	294	return verset;
	295	}
	296	/}}}/
	297	// FromString - Returns all versions spedcified by a string /{{{/
	298	APT::VersionSet VersionSet::FromString(pkgCacheFile &Cache, std::string pkg,
bd631595 DK	299	APT::VersionSet::Version const &fallback, CacheSetHelper &helper,
bd631595 DK	300	bool const &onlyFromName) {
55c59998 DK	301	std::string ver;
	302	bool verIsRel = false;
	303	size_t const vertag = pkg.find_last_of("/=");
472ff00e	304	if (vertag != std::string::npos) {
55c59998 DK	305	ver = pkg.substr(vertag+1);
	306	verIsRel = (pkg[vertag] == '/');
	307	pkg.erase(vertag);
	308	}
bd631595 DK	309	PackageSet pkgset;
	310	if (onlyFromName == false)
	311	pkgset = PackageSet::FromString(Cache, pkg, helper);
	312	else {
	313	pkgset.insert(PackageSet::FromName(Cache, pkg, helper));
	314	}
	315
55c59998	316	VersionSet verset;
c8db3fff DK	317	bool errors = true;
	318	if (pkgset.getConstructor() != PackageSet::UNKNOWN)
	319	errors = helper.showErrors(false);
55c59998 DK	320	for (PackageSet::const_iterator P = pkgset.begin();
55c59998 DK	321	P != pkgset.end(); ++P) {
472ff00e	322	if (vertag == std::string::npos) {
fb83c1d0	323	verset.insert(VersionSet::FromPackage(Cache, P, fallback, helper));
55c59998	324	continue;
856d3b06	325	}
55c59998 DK	326	pkgCache::VerIterator V;
55c59998 DK	327	if (ver == "installed")
70e706ad	328	V = getInstalledVer(Cache, P, helper);
55c59998	329	else if (ver == "candidate")
70e706ad	330	V = getCandidateVer(Cache, P, helper);
f1a58ff8 DK	331	else if (ver == "newest") {
	332	if (P->VersionList != 0)
	333	V = P.VersionList();
	334	else
	335	V = helper.canNotFindNewestVer(Cache, P);
	336	} else {
55c59998 DK	337	pkgVersionMatch Match(ver, (verIsRel == true ? pkgVersionMatch::Release :
	338	pkgVersionMatch::Version));
	339	V = Match.Find(P);
	340	if (V.end() == true) {
	341	if (verIsRel == true)
	342	_error->Error(_("Release '%s' for '%s' was not found"),
	343	ver.c_str(), P.FullName(true).c_str());
	344	else
	345	_error->Error(_("Version '%s' for '%s' was not found"),
	346	ver.c_str(), P.FullName(true).c_str());
84910ad5 DK	347	continue;
84910ad5 DK	348	}
78c32596	349	}
55c59998 DK	350	if (V.end() == true)
55c59998 DK	351	continue;
70e706ad	352	helper.showSelectedVersion(P, V, ver, verIsRel);
55c59998	353	verset.insert(V);
78c32596	354	}
c8db3fff DK	355	if (pkgset.getConstructor() != PackageSet::UNKNOWN)
c8db3fff DK	356	helper.showErrors(errors);
856d3b06 DK	357	return verset;
	358	}
	359	/}}}/
fb83c1d0 DK	360	// FromPackage - versions from package based on fallback /{{{/
	361	VersionSet VersionSet::FromPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &P,
	362	VersionSet::Version const &fallback, CacheSetHelper &helper) {
	363	VersionSet verset;
84910ad5	364	pkgCache::VerIterator V;
70e706ad	365	bool showErrors;
84910ad5 DK	366	switch(fallback) {
	367	case VersionSet::ALL:
	368	if (P->VersionList != 0)
	369	for (V = P.VersionList(); V.end() != true; ++V)
	370	verset.insert(V);
84910ad5	371	else
70e706ad	372	verset.insert(helper.canNotFindAllVer(Cache, P));
84910ad5 DK	373	break;
84910ad5 DK	374	case VersionSet::CANDANDINST:
70e706ad DK	375	verset.insert(getInstalledVer(Cache, P, helper));
70e706ad DK	376	verset.insert(getCandidateVer(Cache, P, helper));
84910ad5 DK	377	break;
84910ad5 DK	378	case VersionSet::CANDIDATE:
70e706ad	379	verset.insert(getCandidateVer(Cache, P, helper));
84910ad5 DK	380	break;
84910ad5 DK	381	case VersionSet::INSTALLED:
70e706ad	382	verset.insert(getInstalledVer(Cache, P, helper));
84910ad5 DK	383	break;
84910ad5 DK	384	case VersionSet::CANDINST:
70e706ad DK	385	showErrors = helper.showErrors(false);
70e706ad DK	386	V = getCandidateVer(Cache, P, helper);
84910ad5	387	if (V.end() == true)
70e706ad DK	388	V = getInstalledVer(Cache, P, helper);
70e706ad DK	389	helper.showErrors(showErrors);
84910ad5 DK	390	if (V.end() == false)
84910ad5 DK	391	verset.insert(V);
84910ad5	392	else
70e706ad	393	verset.insert(helper.canNotFindInstCandVer(Cache, P));
84910ad5 DK	394	break;
84910ad5 DK	395	case VersionSet::INSTCAND:
70e706ad DK	396	showErrors = helper.showErrors(false);
70e706ad DK	397	V = getInstalledVer(Cache, P, helper);
84910ad5	398	if (V.end() == true)
70e706ad DK	399	V = getCandidateVer(Cache, P, helper);
70e706ad DK	400	helper.showErrors(showErrors);
84910ad5 DK	401	if (V.end() == false)
84910ad5 DK	402	verset.insert(V);
84910ad5	403	else
70e706ad	404	verset.insert(helper.canNotFindInstCandVer(Cache, P));
84910ad5 DK	405	break;
	406	case VersionSet::NEWEST:
	407	if (P->VersionList != 0)
	408	verset.insert(P.VersionList());
84910ad5	409	else
70e706ad	410	verset.insert(helper.canNotFindNewestVer(Cache, P));
84910ad5 DK	411	break;
84910ad5 DK	412	}
fb83c1d0	413	return verset;
84910ad5 DK	414	}
84910ad5 DK	415	/}}}/
856d3b06 DK	416	// getCandidateVer - Returns the candidate version of the given package /{{{/
856d3b06 DK	417	pkgCache::VerIterator VersionSet::getCandidateVer(pkgCacheFile &Cache,
70e706ad	418	pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) {
a8ef7efd	419	pkgCache::VerIterator Cand;
2fbfb111 DK	420	if (Cache.IsPolicyBuilt() == true \|\| Cache.IsDepCacheBuilt() == false)
2fbfb111 DK	421	{
bd631595 DK	422	if (unlikely(Cache.GetPolicy() == 0))
bd631595 DK	423	return pkgCache::VerIterator(Cache);
a8ef7efd	424	Cand = Cache.GetPolicy()->GetCandidateVer(Pkg);
2fbfb111 DK	425	} else {
2fbfb111 DK	426	Cand = Cache[Pkg].CandidateVerIter(Cache);
a8ef7efd	427	}
70e706ad DK	428	if (Cand.end() == true)
70e706ad DK	429	return helper.canNotFindCandidateVer(Cache, Pkg);
856d3b06 DK	430	return Cand;
	431	}
	432	/}}}/
	433	// getInstalledVer - Returns the installed version of the given package /{{{/
	434	pkgCache::VerIterator VersionSet::getInstalledVer(pkgCacheFile &Cache,
70e706ad DK	435	pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) {
	436	if (Pkg->CurrentVer == 0)
	437	return helper.canNotFindInstalledVer(Cache, Pkg);
856d3b06	438	return Pkg.CurrentVer();
ffee1c2b DK	439	}
ffee1c2b DK	440	/}}}/
bd631595 DK	441	// canNotFindPkgName - handle the case no package has this name /{{{/
	442	pkgCache::PkgIterator CacheSetHelper::canNotFindPkgName(pkgCacheFile &Cache,
	443	std::string const &str) {
	444	if (ShowError == true)
cd7bbc47	445	_error->Insert(ErrorType, _("Unable to locate package %s"), str.c_str());
bd631595 DK	446	return pkgCache::PkgIterator(Cache, 0);
	447	}
	448	/}}}/
70e706ad DK	449	// canNotFindTask - handle the case no package is found for a task /{{{/
	450	PackageSet CacheSetHelper::canNotFindTask(pkgCacheFile &Cache, std::string pattern) {
	451	if (ShowError == true)
cd7bbc47	452	_error->Insert(ErrorType, _("Couldn't find task '%s'"), pattern.c_str());
70e706ad DK	453	return PackageSet();
	454	}
	455	/}}}/
	456	// canNotFindRegEx - handle the case no package is found by a regex /{{{/
	457	PackageSet CacheSetHelper::canNotFindRegEx(pkgCacheFile &Cache, std::string pattern) {
	458	if (ShowError == true)
cd7bbc47	459	_error->Insert(ErrorType, _("Couldn't find any package by regex '%s'"), pattern.c_str());
70e706ad DK	460	return PackageSet();
	461	}
	462	/}}}/
	463	// canNotFindPackage - handle the case no package is found from a string/{{{/
	464	PackageSet CacheSetHelper::canNotFindPackage(pkgCacheFile &Cache, std::string const &str) {
70e706ad DK	465	return PackageSet();
	466	}
	467	/}}}/
	468	// canNotFindAllVer /{{{/
	469	VersionSet CacheSetHelper::canNotFindAllVer(pkgCacheFile &Cache,
	470	pkgCache::PkgIterator const &Pkg) {
	471	if (ShowError == true)
edc0ef10	472	_error->Insert(ErrorType, _("Can't select versions from package '%s' as it is purely virtual"), Pkg.FullName(true).c_str());
70e706ad DK	473	return VersionSet();
	474	}
	475	/}}}/
	476	// canNotFindInstCandVer /{{{/
	477	VersionSet CacheSetHelper::canNotFindInstCandVer(pkgCacheFile &Cache,
	478	pkgCache::PkgIterator const &Pkg) {
	479	if (ShowError == true)
cd7bbc47	480	_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	481	return VersionSet();
	482	}
	483	/}}}/
cf28bcad DK	484	// canNotFindInstCandVer /{{{/
	485	VersionSet CacheSetHelper::canNotFindCandInstVer(pkgCacheFile &Cache,
	486	pkgCache::PkgIterator const &Pkg) {
	487	if (ShowError == true)
cd7bbc47	488	_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	489	return VersionSet();
	490	}
	491	/}}}/
70e706ad DK	492	// canNotFindNewestVer /{{{/
	493	pkgCache::VerIterator CacheSetHelper::canNotFindNewestVer(pkgCacheFile &Cache,
	494	pkgCache::PkgIterator const &Pkg) {
	495	if (ShowError == true)
cd7bbc47	496	_error->Insert(ErrorType, _("Can't select newest version from package '%s' as it is purely virtual"), Pkg.FullName(true).c_str());
c8db3fff	497	return pkgCache::VerIterator(Cache, 0);
70e706ad DK	498	}
	499	/}}}/
	500	// canNotFindCandidateVer /{{{/
	501	pkgCache::VerIterator CacheSetHelper::canNotFindCandidateVer(pkgCacheFile &Cache,
	502	pkgCache::PkgIterator const &Pkg) {
	503	if (ShowError == true)
cd7bbc47	504	_error->Insert(ErrorType, _("Can't select candidate version from package %s as it has no candidate"), Pkg.FullName(true).c_str());
c8db3fff	505	return pkgCache::VerIterator(Cache, 0);
70e706ad DK	506	}
	507	/}}}/
	508	// canNotFindInstalledVer /{{{/
	509	pkgCache::VerIterator CacheSetHelper::canNotFindInstalledVer(pkgCacheFile &Cache,
	510	pkgCache::PkgIterator const &Pkg) {
	511	if (ShowError == true)
cd7bbc47	512	_error->Insert(ErrorType, _("Can't select installed version from package %s as it is not installed"), Pkg.FullName(true).c_str());
c8db3fff	513	return pkgCache::VerIterator(Cache, 0);
70e706ad DK	514	}
70e706ad DK	515	/}}}/
ffee1c2b	516	}