[ntk/apt.git] / apt-pkg / edsp.cc

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
/* ######################################################################
   Set of methods to help writing and reading everything needed for EDSP
   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include <apt-pkg/edsp.h>
#include <apt-pkg/error.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/version.h>
#include <apt-pkg/policy.h>

#include <apti18n.h>
#include <limits>

#include <stdio.h>
									/*}}}*/

// EDSP::WriteScenario - to the given file descriptor			/*{{{*/
bool EDSP::WriteScenario(pkgDepCache &Cache, FILE* output)
{
   // we could use pkgCache::DepType and ::Priority, but these would be lokalized strings…
   const char * const PrioMap[] = {0, "important", "required", "standard",
				   "optional", "extra"};
   const char * const DepMap[] = {"", "Depends", "PreDepends", "Suggests",
				  "Recommends" , "Conflicts", "Replaces",
				  "Obsoletes", "Breaks", "Enhances"};

   for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
   {
      for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
      {
	 fprintf(output, "Package: %s\n", Pkg.Name());
	 fprintf(output, "Architecture: %s\n", Ver.Arch());
	 fprintf(output, "Version: %s\n", Ver.VerStr());
	 if (Pkg.CurrentVer() == Ver)
	    fprintf(output, "Installed: yes\n");
	 if (Pkg->SelectedState == pkgCache::State::Hold)
	    fprintf(output, "Hold: yes\n");
	 fprintf(output, "APT-ID: %u\n", Ver->ID);
	 fprintf(output, "Priority: %s\n", PrioMap[Ver->Priority]);
	 if ((Pkg->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
	    fprintf(output, "Essential: yes\n");
	 fprintf(output, "Section: %s\n", Ver.Section());
	 if (Ver->MultiArch == pkgCache::Version::Allowed || Ver->MultiArch == pkgCache::Version::AllAllowed)
	    fprintf(output, "Multi-Arch: allowed\n");
	 else if (Ver->MultiArch == pkgCache::Version::Foreign || Ver->MultiArch == pkgCache::Version::AllForeign)
	    fprintf(output, "Multi-Arch: foreign\n");
	 else if (Ver->MultiArch == pkgCache::Version::Same)
	    fprintf(output, "Multi-Arch: same\n");
	 signed short Pin = std::numeric_limits<signed short>::min();
	 for (pkgCache::VerFileIterator File = Ver.FileList(); File.end() == false; ++File) {
	    signed short const p = Cache.GetPolicy().GetPriority(File.File());
	    if (Pin < p)
	       Pin = p;
	 }
	 fprintf(output, "APT-Pin: %d\n", Pin);
	 if (Cache.GetCandidateVer(Pkg) == Ver)
	    fprintf(output, "APT-Candidate: yes\n");
	 if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
	    fprintf(output, "APT-Automatic: yes\n");
	 std::string dependencies[pkgCache::Dep::Enhances + 1];
	 bool orGroup = false;
	 for (pkgCache::DepIterator Dep = Ver.DependsList(); Dep.end() == false; ++Dep)
	 {
	    // Ignore implicit dependencies for multiarch here
	    if (strcmp(Pkg.Arch(), Dep.TargetPkg().Arch()) != 0)
	       continue;
	    if (orGroup == false)
	       dependencies[Dep->Type].append(", ");
	    dependencies[Dep->Type].append(Dep.TargetPkg().Name());
	    if (Dep->Version != 0)
	       dependencies[Dep->Type].append(" (").append(pkgCache::CompTypeDeb(Dep->CompareOp)).append(" ").append(Dep.TargetVer()).append(")");
	    if ((Dep->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or)
	    {
	       dependencies[Dep->Type].append(" | ");
	       orGroup = true;
	    }
	    else
	       orGroup = false;
	 }
	 for (int i = 1; i < pkgCache::Dep::Enhances + 1; ++i)
	    if (dependencies[i].empty() == false)
	       fprintf(output, "%s: %s\n", DepMap[i], dependencies[i].c_str()+2);
	 string provides;
	 for (pkgCache::PrvIterator Prv = Ver.ProvidesList(); Prv.end() == false; ++Prv)
	 {
	    // Ignore implicit provides for multiarch here
	    if (strcmp(Pkg.Arch(), Prv.ParentPkg().Arch()) != 0 || strcmp(Pkg.Name(),Prv.Name()) == 0)
	       continue;
	    provides.append(", ").append(Prv.Name());
	 }
	 if (provides.empty() == false)
	    fprintf(output, "Provides: %s\n", provides.c_str()+2);


	 fprintf(output, "\n");
      }
   }
   return true;
}
									/*}}}*/
// EDSP::WriteRequest - to the given file descriptor			/*{{{*/
bool EDSP::WriteRequest(pkgDepCache &Cache, FILE* output, bool const Upgrade,
			bool const DistUpgrade, bool const AutoRemove)
{
   string del, inst;
   for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
   {
      string* req;
      if (Cache[Pkg].Delete() == true)
	 req = &del;
      else if (Cache[Pkg].NewInstall() == true || Cache[Pkg].Upgrade() == true)
	 req = &inst;
      else
	 continue;
      req->append(" ").append(Pkg.FullName());
   }
   fprintf(output, "Request: EDSP 0.2\n");
   if (del.empty() == false)
      fprintf(output, "Remove: %s\n", del.c_str()+1);
   if (inst.empty() == false)
      fprintf(output, "Install: %s\n", inst.c_str()+1);
   if (Upgrade == true)
      fprintf(output, "Upgrade: yes\n");
   if (DistUpgrade == true)
      fprintf(output, "Dist-Upgrade: yes\n");
   if (AutoRemove == true)
      fprintf(output, "Autoremove: yes\n");
   if (_config->FindB("APT::Solver::Strict-Pinning", true) == false)
      fprintf(output, "Strict-Pinning: no\n");
   string solverpref("APT::Solver::");
   solverpref.append(_config->Find("APT::Solver::Name", "internal")).append("::Preferences");
   if (_config->Exists(solverpref) == true)
      fprintf(output, "Preferences: %s\n", _config->Find(solverpref,"").c_str());
   fprintf(output, "\n");

   return true;
}
									/*}}}*/
bool EDSP::ReadResponse(FILE* input, pkgDepCache &Cache) { return false; }

// EDSP::ReadLine - first line from the given file descriptor		/*{{{*/
// ---------------------------------------------------------------------
/* Little helper method to read a complete line into a string. Similar to
   fgets but we need to use the low-level read() here as otherwise the
   listparser will be confused later on as mixing of fgets and read isn't
   a supported action according to the manpages and result are undefined */
bool EDSP::ReadLine(int const input, std::string &line) {
	char one;
	ssize_t data = 0;
	line.erase();
	line.reserve(100);
	while ((data = read(input, &one, sizeof(one))) != -1) {
		if (data != 1)
			continue;
		if (one == '\n')
			return true;
		if (one == '\r')
			continue;
		if (line.empty() == true && isblank(one) != 0)
			continue;
		line += one;
	}
	return false;
}
									/*}}}*/
// EDSP::ReadRequest - first stanza from the given file descriptor	/*{{{*/
bool EDSP::ReadRequest(int const input, std::list<std::string> &install,
			std::list<std::string> &remove)
{
   std::string line;
   while (ReadLine(input, line) == true)
   {
      // Skip empty lines before request
      if (line.empty() == true)
	 continue;
      // The first Tag must be a request, so search for it
      if (line.compare(0,8, "Request:") != 0)
	 continue;

      while (ReadLine(input, line) == true)
      {
	 // empty lines are the end of the request
	 if (line.empty() == true)
	    return true;

	 std::list<std::string> *request = NULL;
	 if (line.compare(0,8, "Install:") == 0)
	 {
	    line.erase(0,8);
	    request = &install;
	 }
	 if (line.compare(0,7, "Remove:") == 0)
	 {
	    line.erase(0,7);
	    request = &remove;
	 }
	 if (request == NULL)
	    continue;
	 size_t end = line.length();
	 do {
	    size_t begin = line.rfind(' ');
	    if (begin == std::string::npos)
	    {
	       request->push_back(line.substr(0,end));
	       break;
	    }
	    else if (begin < end)
	       request->push_back(line.substr(begin + 1, end));
	    line.erase(begin);
	    end = line.find_last_not_of(' ');
	 } while (end != std::string::npos);
      }
   }
   return false;
}
									/*}}}*/
// EDSP::ApplyRequest - first stanza from the given file descriptor	/*{{{*/
bool EDSP::ApplyRequest(std::list<std::string> const &install,
			 std::list<std::string> const &remove,
			 pkgDepCache &Cache)
{
	for (std::list<std::string>::const_iterator i = install.begin();
	     i != install.end(); ++i)
		Cache.MarkInstall(Cache.FindPkg(*i), false);

	for (std::list<std::string>::const_iterator i = remove.begin();
	     i != remove.end(); ++i)
		Cache.MarkDelete(Cache.FindPkg(*i));
	return true;
}
									/*}}}*/
// EDSP::WriteSolution - to the given file descriptor			/*{{{*/
bool EDSP::WriteSolution(pkgDepCache &Cache, FILE* output)
{
   bool const Debug = _config->FindB("Debug::EDSP::WriteSolution", false);
   for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
   {
      if (Cache[Pkg].Delete() == true)
	 fprintf(output, "Remove: %d\n", Cache.GetCandidateVer(Pkg)->ID);
      else if (Cache[Pkg].NewInstall() == true || Cache[Pkg].Upgrade() == true)
	 fprintf(output, "Install: %d\n", Cache.GetCandidateVer(Pkg)->ID);
      else
	 continue;
      if (Debug == true)
	 fprintf(output, "Package: %s\nVersion: %s\n", Pkg.FullName().c_str(), Cache.GetCandidateVer(Pkg).VerStr());
      fprintf(output, "\n");
   }

   return true;
}
									/*}}}*/
bool EDSP::WriteError(std::string const &message, FILE* output) { return false; }
Commit	Line	Data
6d38011b DK	1	// -- mode: cpp; mode: fold --
	2	// Description /{{{/
	3	/* ######################################################################
	4	Set of methods to help writing and reading everything needed for EDSP
	5	##################################################################### */
	6	/}}}/
	7	// Include Files /{{{/
c3b85126	8	#include <apt-pkg/edsp.h>
6d38011b DK	9	#include <apt-pkg/error.h>
	10	#include <apt-pkg/configuration.h>
	11	#include <apt-pkg/version.h>
	12	#include <apt-pkg/policy.h>
	13
	14	#include <apti18n.h>
	15	#include <limits>
	16
	17	#include <stdio.h>
	18	/}}}/
	19
c3b85126 DK	20	// EDSP::WriteScenario - to the given file descriptor /{{{/
c3b85126 DK	21	bool EDSP::WriteScenario(pkgDepCache &Cache, FILE* output)
6d38011b DK	22	{
	23	// we could use pkgCache::DepType and ::Priority, but these would be lokalized strings…
	24	const char * const PrioMap[] = {0, "important", "required", "standard",
	25	"optional", "extra"};
	26	const char * const DepMap[] = {"", "Depends", "PreDepends", "Suggests",
	27	"Recommends" , "Conflicts", "Replaces",
	28	"Obsoletes", "Breaks", "Enhances"};
	29
	30	for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
	31	{
	32	for (pkgCache::VerIterator Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
	33	{
	34	fprintf(output, "Package: %s\n", Pkg.Name());
	35	fprintf(output, "Architecture: %s\n", Ver.Arch());
	36	fprintf(output, "Version: %s\n", Ver.VerStr());
	37	if (Pkg.CurrentVer() == Ver)
	38	fprintf(output, "Installed: yes\n");
	39	if (Pkg->SelectedState == pkgCache::State::Hold)
	40	fprintf(output, "Hold: yes\n");
	41	fprintf(output, "APT-ID: %u\n", Ver->ID);
	42	fprintf(output, "Priority: %s\n", PrioMap[Ver->Priority]);
	43	if ((Pkg->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
	44	fprintf(output, "Essential: yes\n");
	45	fprintf(output, "Section: %s\n", Ver.Section());
	46	if (Ver->MultiArch == pkgCache::Version::Allowed \|\| Ver->MultiArch == pkgCache::Version::AllAllowed)
	47	fprintf(output, "Multi-Arch: allowed\n");
	48	else if (Ver->MultiArch == pkgCache::Version::Foreign \|\| Ver->MultiArch == pkgCache::Version::AllForeign)
	49	fprintf(output, "Multi-Arch: foreign\n");
	50	else if (Ver->MultiArch == pkgCache::Version::Same)
	51	fprintf(output, "Multi-Arch: same\n");
	52	signed short Pin = std::numeric_limits<signed short>::min();
	53	for (pkgCache::VerFileIterator File = Ver.FileList(); File.end() == false; ++File) {
	54	signed short const p = Cache.GetPolicy().GetPriority(File.File());
	55	if (Pin < p)
	56	Pin = p;
	57	}
	58	fprintf(output, "APT-Pin: %d\n", Pin);
	59	if (Cache.GetCandidateVer(Pkg) == Ver)
	60	fprintf(output, "APT-Candidate: yes\n");
	61	if ((Cache[Pkg].Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
	62	fprintf(output, "APT-Automatic: yes\n");
	63	std::string dependencies[pkgCache::Dep::Enhances + 1];
	64	bool orGroup = false;
	65	for (pkgCache::DepIterator Dep = Ver.DependsList(); Dep.end() == false; ++Dep)
	66	{
	67	// Ignore implicit dependencies for multiarch here
	68	if (strcmp(Pkg.Arch(), Dep.TargetPkg().Arch()) != 0)
	69	continue;
	70	if (orGroup == false)
	71	dependencies[Dep->Type].append(", ");
	72	dependencies[Dep->Type].append(Dep.TargetPkg().Name());
	73	if (Dep->Version != 0)
	74	dependencies[Dep->Type].append(" (").append(pkgCache::CompTypeDeb(Dep->CompareOp)).append(" ").append(Dep.TargetVer()).append(")");
	75	if ((Dep->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or)
	76	{
	77	dependencies[Dep->Type].append(" \| ");
	78	orGroup = true;
	79	}
	80	else
	81	orGroup = false;
	82	}
	83	for (int i = 1; i < pkgCache::Dep::Enhances + 1; ++i)
	84	if (dependencies[i].empty() == false)
	85	fprintf(output, "%s: %s\n", DepMap[i], dependencies[i].c_str()+2);
86	string provides;
87	for (pkgCache::PrvIterator Prv = Ver.ProvidesList(); Prv.end() == false; ++Prv)
88	{
89	// Ignore implicit provides for multiarch here
90	if (strcmp(Pkg.Arch(), Prv.ParentPkg().Arch()) != 0 \|\| strcmp(Pkg.Name(),Prv.Name()) == 0)
91	continue;
92	provides.append(", ").append(Prv.Name());
93	}
94	if (provides.empty() == false)
95	fprintf(output, "Provides: %s\n", provides.c_str()+2);
96
97
98	fprintf(output, "\n");
99	}
100	}
101	return true;
102	}
103	/}}}/
c3b85126	104	// EDSP::WriteRequest - to the given file descriptor /{{{/
93794bc9 DK	105	bool EDSP::WriteRequest(pkgDepCache &Cache, FILE* output, bool const Upgrade,
93794bc9 DK	106	bool const DistUpgrade, bool const AutoRemove)
6d38011b	107	{
93794bc9	108	string del, inst;
6d38011b DK	109	for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
	110	{
	111	string* req;
	112	if (Cache[Pkg].Delete() == true)
	113	req = &del;
93794bc9	114	else if (Cache[Pkg].NewInstall() == true \|\| Cache[Pkg].Upgrade() == true)
6d38011b	115	req = &inst;
6d38011b DK	116	else
6d38011b DK	117	continue;
6d5bd614	118	req->append(" ").append(Pkg.FullName());
6d38011b	119	}
93794bc9	120	fprintf(output, "Request: EDSP 0.2\n");
6d38011b	121	if (del.empty() == false)
6d5bd614	122	fprintf(output, "Remove: %s\n", del.c_str()+1);
6d38011b	123	if (inst.empty() == false)
6d5bd614	124	fprintf(output, "Install: %s\n", inst.c_str()+1);
93794bc9 DK	125	if (Upgrade == true)
	126	fprintf(output, "Upgrade: yes\n");
	127	if (DistUpgrade == true)
	128	fprintf(output, "Dist-Upgrade: yes\n");
	129	if (AutoRemove == true)
	130	fprintf(output, "Autoremove: yes\n");
	131	if (_config->FindB("APT::Solver::Strict-Pinning", true) == false)
	132	fprintf(output, "Strict-Pinning: no\n");
	133	string solverpref("APT::Solver::");
	134	solverpref.append(_config->Find("APT::Solver::Name", "internal")).append("::Preferences");
6d5bd614	135	if (_config->Exists(solverpref) == true)
93794bc9	136	fprintf(output, "Preferences: %s\n", _config->Find(solverpref,"").c_str());
6d5bd614	137	fprintf(output, "\n");
6d38011b	138
e3674d91 DK	139	return true;
	140	}
	141	/}}}/
c3b85126	142	bool EDSP::ReadResponse(FILE* input, pkgDepCache &Cache) { return false; }
29099cb6	143
6d5bd614 DK	144	// EDSP::ReadLine - first line from the given file descriptor /{{{/
	145	// ---------------------------------------------------------------------
	146	/* Little helper method to read a complete line into a string. Similar to
	147	fgets but we need to use the low-level read() here as otherwise the
	148	listparser will be confused later on as mixing of fgets and read isn't
	149	a supported action according to the manpages and result are undefined */
	150	bool EDSP::ReadLine(int const input, std::string &line) {
	151	char one;
	152	ssize_t data = 0;
	153	line.erase();
	154	line.reserve(100);
	155	while ((data = read(input, &one, sizeof(one))) != -1) {
	156	if (data != 1)
	157	continue;
	158	if (one == '\n')
	159	return true;
	160	if (one == '\r')
	161	continue;
	162	if (line.empty() == true && isblank(one) != 0)
	163	continue;
	164	line += one;
	165	}
	166	return false;
	167	}
	168	/}}}/
	169	// EDSP::ReadRequest - first stanza from the given file descriptor /{{{/
	170	bool EDSP::ReadRequest(int const input, std::list<std::string> &install,
29099cb6	171	std::list<std::string> &remove)
6d5bd614 DK	172	{
	173	std::string line;
	174	while (ReadLine(input, line) == true)
	175	{
	176	// Skip empty lines before request
	177	if (line.empty() == true)
	178	continue;
	179	// The first Tag must be a request, so search for it
	180	if (line.compare(0,8, "Request:") != 0)
	181	continue;
	182
	183	while (ReadLine(input, line) == true)
	184	{
	185	// empty lines are the end of the request
	186	if (line.empty() == true)
	187	return true;
	188
	189	std::list<std::string> *request = NULL;
	190	if (line.compare(0,8, "Install:") == 0)
	191	{
	192	line.erase(0,8);
	193	request = &install;
	194	}
	195	if (line.compare(0,7, "Remove:") == 0)
	196	{
	197	line.erase(0,7);
	198	request = &remove;
	199	}
	200	if (request == NULL)
	201	continue;
	202	size_t end = line.length();
	203	do {
	204	size_t begin = line.rfind(' ');
	205	if (begin == std::string::npos)
	206	{
	207	request->push_back(line.substr(0,end));
	208	break;
	209	}
	210	else if (begin < end)
	211	request->push_back(line.substr(begin + 1, end));
	212	line.erase(begin);
	213	end = line.find_last_not_of(' ');
	214	} while (end != std::string::npos);
	215	}
	216	}
	217	return false;
	218	}
	219	/}}}/
	220	// EDSP::ApplyRequest - first stanza from the given file descriptor /{{{/
c3b85126	221	bool EDSP::ApplyRequest(std::list<std::string> const &install,
29099cb6 DK	222	std::list<std::string> const &remove,
29099cb6 DK	223	pkgDepCache &Cache)
6d5bd614 DK	224	{
	225	for (std::list<std::string>::const_iterator i = install.begin();
	226	i != install.end(); ++i)
	227	Cache.MarkInstall(Cache.FindPkg(*i), false);
	228
	229	for (std::list<std::string>::const_iterator i = remove.begin();
	230	i != remove.end(); ++i)
	231	Cache.MarkDelete(Cache.FindPkg(*i));
	232	return true;
	233	}
	234	/}}}/
c3b85126 DK	235	// EDSP::WriteSolution - to the given file descriptor /{{{/
c3b85126 DK	236	bool EDSP::WriteSolution(pkgDepCache &Cache, FILE* output)
e3674d91	237	{
6d5bd614	238	bool const Debug = _config->FindB("Debug::EDSP::WriteSolution", false);
e3674d91 DK	239	for (pkgCache::PkgIterator Pkg = Cache.PkgBegin(); Pkg.end() == false; ++Pkg)
	240	{
	241	if (Cache[Pkg].Delete() == true)
	242	fprintf(output, "Remove: %d\n", Cache.GetCandidateVer(Pkg)->ID);
	243	else if (Cache[Pkg].NewInstall() == true \|\| Cache[Pkg].Upgrade() == true)
	244	fprintf(output, "Install: %d\n", Cache.GetCandidateVer(Pkg)->ID);
	245	else
	246	continue;
	247	if (Debug == true)
	248	fprintf(output, "Package: %s\nVersion: %s\n", Pkg.FullName().c_str(), Cache.GetCandidateVer(Pkg).VerStr());
	249	fprintf(output, "\n");
	250	}
	251
6d38011b DK	252	return true;
	253	}
	254	/}}}/
c3b85126	255	bool EDSP::WriteError(std::string const &message, FILE* output) { return false; }