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

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: indexfile.cc,v 1.2.2.1 2003/12/24 23:09:17 mdz Exp $
/* ######################################################################

   Index File - Abstraction for an index of archive/souce file.
   
   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include<config.h>

#include <apt-pkg/configuration.h>
#include <apt-pkg/indexfile.h>
#include <apt-pkg/error.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/aptconfiguration.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/pkgcachegen.h>
#include <apt-pkg/cacheiterators.h>
#include <apt-pkg/srcrecords.h>
#include <apt-pkg/progress.h>
#include <apt-pkg/macros.h>

#include <apt-pkg/deblistparser.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

#include <string>
#include <vector>
#include <clocale>
#include <cstring>
#include <memory>
									/*}}}*/

// Global list of Item supported
static  pkgIndexFile::Type *ItmList[10];
pkgIndexFile::Type **pkgIndexFile::Type::GlobalList = ItmList;
unsigned long pkgIndexFile::Type::GlobalListLen = 0;

// Type::Type - Constructor						/*{{{*/
// ---------------------------------------------------------------------
/* */
pkgIndexFile::Type::Type()
{
   ItmList[GlobalListLen] = this;
   GlobalListLen++;
   Label = NULL;
}
									/*}}}*/
// Type::GetType - Locate the type by name				/*{{{*/
// ---------------------------------------------------------------------
/* */
pkgIndexFile::Type *pkgIndexFile::Type::GetType(const char *Type)
{
   for (unsigned I = 0; I != GlobalListLen; I++)
      if (strcmp(GlobalList[I]->Label,Type) == 0)
	 return GlobalList[I];
   return 0;
}
									/*}}}*/
pkgIndexFile::pkgIndexFile(bool const Trusted) :			/*{{{*/
   d(NULL), Trusted(Trusted)
{
}
									/*}}}*/
// IndexFile::ArchiveInfo - Stub					/*{{{*/
std::string pkgIndexFile::ArchiveInfo(pkgCache::VerIterator const &/*Ver*/) const
{
   return std::string();
}
									/*}}}*/
// IndexFile::FindInCache - Stub					/*{{{*/
pkgCache::PkgFileIterator pkgIndexFile::FindInCache(pkgCache &Cache) const
{
   return pkgCache::PkgFileIterator(Cache);
}
									/*}}}*/
// IndexFile::SourceIndex - Stub					/*{{{*/
std::string pkgIndexFile::SourceInfo(pkgSrcRecords::Parser const &/*Record*/,
				pkgSrcRecords::File const &/*File*/) const
{
   return std::string();
}
									/*}}}*/
// IndexFile::TranslationsAvailable - Check if will use Translation	/*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgIndexFile::TranslationsAvailable() {
	return (APT::Configuration::getLanguages().empty() != true);
}
									/*}}}*/
// IndexFile::CheckLanguageCode - Check the Language Code		/*{{{*/
// ---------------------------------------------------------------------
/* No intern need for this method anymore as the check for correctness
   is already done in getLanguages(). Note also that this check is
   rather bad (doesn't take three character like ast into account).
   TODO: Remove method with next API break */
APT_DEPRECATED bool pkgIndexFile::CheckLanguageCode(const char * const Lang)
{
  if (strlen(Lang) == 2 || (strlen(Lang) == 5 && Lang[2] == '_'))
    return true;

  if (strcmp(Lang,"C") != 0)
    _error->Warning("Wrong language code %s", Lang);

  return false;
}
									/*}}}*/
// IndexFile::LanguageCode - Return the Language Code			/*{{{*/
// ---------------------------------------------------------------------
/* As we have now possibly more than one LanguageCode this method is
   supersided by a) private classmembers or b) getLanguages().
   TODO: Remove method with next API break */
APT_DEPRECATED std::string pkgIndexFile::LanguageCode() {
	if (TranslationsAvailable() == false)
		return "";
	return APT::Configuration::getLanguages()[0];
}
									/*}}}*/

// IndexTarget - Constructor						/*{{{*/
IndexTarget::IndexTarget(std::string const &MetaKey, std::string const &ShortDesc,
      std::string const &LongDesc, std::string const &URI, bool const IsOptional,
      bool const KeepCompressed, std::map<std::string, std::string> const &Options) :
   URI(URI), Description(LongDesc), ShortDesc(ShortDesc), MetaKey(MetaKey),
   IsOptional(IsOptional), KeepCompressed(KeepCompressed), Options(Options)
{
}
									/*}}}*/
std::string IndexTarget::Option(OptionKeys const EnumKey) const		/*{{{*/
{
   std::string Key;
   switch (EnumKey)
   {
#define APT_CASE(X) case X: Key = #X; break
      APT_CASE(SITE);
      APT_CASE(RELEASE);
      APT_CASE(COMPONENT);
      APT_CASE(LANGUAGE);
      APT_CASE(ARCHITECTURE);
      APT_CASE(BASE_URI);
      APT_CASE(REPO_URI);
      APT_CASE(TARGET_OF);
      APT_CASE(CREATED_BY);
#undef APT_CASE
      case FILENAME: return _config->FindDir("Dir::State::lists") + URItoFileName(URI);
      case EXISTING_FILENAME:
	 std::string const filename = Option(FILENAME);
	 std::vector<std::string> const types = APT::Configuration::getCompressionTypes();
	 for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
	 {
	    if (t->empty())
	       continue;
	    std::string const file = (*t == "uncompressed") ? filename : (filename + "." + *t);
	    if (FileExists(file))
	       return file;
	 }
	 return "";
   }
   std::map<std::string,std::string>::const_iterator const M = Options.find(Key);
   if (M == Options.end())
      return "";
   return M->second;
}
									/*}}}*/
std::string IndexTarget::Format(std::string format) const		/*{{{*/
{
   for (std::map<std::string, std::string>::const_iterator O = Options.begin(); O != Options.end(); ++O)
   {
      format = SubstVar(format, std::string("$(") + O->first + ")", O->second);
   }
   format = SubstVar(format, "$(METAKEY)", MetaKey);
   format = SubstVar(format, "$(SHORTDESC)", ShortDesc);
   format = SubstVar(format, "$(DESCRIPTION)", Description);
   format = SubstVar(format, "$(URI)", URI);
   format = SubstVar(format, "$(FILENAME)", Option(IndexTarget::FILENAME));
   return format;
}
									/*}}}*/

pkgDebianIndexTargetFile::pkgDebianIndexTargetFile(IndexTarget const &Target, bool const Trusted) :/*{{{*/
   pkgDebianIndexFile(Trusted), d(NULL), Target(Target)
{
}
									/*}}}*/
std::string pkgDebianIndexTargetFile::ArchiveURI(std::string const &File) const/*{{{*/
{
   return Target.Option(IndexTarget::REPO_URI) + File;
}
									/*}}}*/
std::string pkgDebianIndexTargetFile::Describe(bool const Short) const	/*{{{*/
{
   if (Short)
      return Target.Description;
   return Target.Description + " (" + IndexFileName() + ")";
}
									/*}}}*/
std::string pkgDebianIndexTargetFile::IndexFileName() const			/*{{{*/
{
   std::string const s = Target.Option(IndexTarget::FILENAME);
   if (FileExists(s))
      return s;

   std::vector<std::string> types = APT::Configuration::getCompressionTypes();
   for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
   {
      std::string p = s + '.' + *t;
      if (FileExists(p))
         return p;
   }
   return s;
}
									/*}}}*/
unsigned long pkgDebianIndexTargetFile::Size() const				/*{{{*/
{
   unsigned long size = 0;

   /* we need to ignore errors here; if the lists are absent, just return 0 */
   _error->PushToStack();

   FileFd f(IndexFileName(), FileFd::ReadOnly, FileFd::Extension);
   if (!f.Failed())
      size = f.Size();

   if (_error->PendingError() == true)
       size = 0;
   _error->RevertToStack();

   return size;
}
									/*}}}*/
bool pkgDebianIndexTargetFile::Exists() const					/*{{{*/
{
   return FileExists(IndexFileName());
}
									/*}}}*/
std::string pkgDebianIndexTargetFile::GetArchitecture() const			/*{{{*/
{
   return Target.Option(IndexTarget::ARCHITECTURE);
}
									/*}}}*/
std::string pkgDebianIndexTargetFile::GetComponent() const			/*{{{*/
{
   return Target.Option(IndexTarget::COMPONENT);
}
									/*}}}*/
bool pkgDebianIndexTargetFile::OpenListFile(FileFd &Pkg, std::string const &FileName)/*{{{*/
{
   if (Pkg.Open(FileName, FileFd::ReadOnly, FileFd::Extension) == false)
      return _error->Error("Problem opening %s",FileName.c_str());
   return true;
}
									/*}}}*/
std::string pkgDebianIndexTargetFile::GetProgressDescription() const
{
   return Target.Description;
}

pkgDebianIndexRealFile::pkgDebianIndexRealFile(std::string const &File, bool const Trusted) :/*{{{*/
   pkgDebianIndexFile(Trusted), d(NULL), File(flAbsPath(File))
{
}
									/*}}}*/
// IndexRealFile::Size - Return the size of the index			/*{{{*/
unsigned long pkgDebianIndexRealFile::Size() const
{
   struct stat S;
   if (stat(File.c_str(),&S) != 0)
      return 0;
   return S.st_size;
}
									/*}}}*/
bool pkgDebianIndexRealFile::Exists() const					/*{{{*/
{
   return FileExists(File);
}
									/*}}}*/
std::string pkgDebianIndexRealFile::Describe(bool const /*Short*/) const/*{{{*/
{
   return File;
}
									/*}}}*/
std::string pkgDebianIndexRealFile::ArchiveURI(std::string const &/*File*/) const/*{{{*/
{
   return "file:" + File;
}
									/*}}}*/
std::string pkgDebianIndexRealFile::IndexFileName() const			/*{{{*/
{
   return File;
}
									/*}}}*/
std::string pkgDebianIndexRealFile::GetProgressDescription() const
{
   return File;
}
bool pkgDebianIndexRealFile::OpenListFile(FileFd &Pkg, std::string const &FileName)/*{{{*/
{
   if (Pkg.Open(FileName, FileFd::ReadOnly, FileFd::None) == false)
      return _error->Error("Problem opening %s",FileName.c_str());
   return true;
}
									/*}}}*/

pkgDebianIndexFile::pkgDebianIndexFile(bool const Trusted) : pkgIndexFile(Trusted)
{
}
pkgDebianIndexFile::~pkgDebianIndexFile()
{
}
pkgCacheListParser * pkgDebianIndexFile::CreateListParser(FileFd &Pkg)
{
   if (Pkg.IsOpen() == false)
      return NULL;
   _error->PushToStack();
   pkgCacheListParser * const Parser = new debListParser(&Pkg);
   bool const newError = _error->PendingError();
   _error->MergeWithStack();
   return newError ? NULL : Parser;
}
bool pkgDebianIndexFile::Merge(pkgCacheGenerator &Gen,OpProgress * const Prog)
{
   std::string const PackageFile = IndexFileName();
   FileFd Pkg;
   if (OpenListFile(Pkg, PackageFile) == false)
      return false;
   _error->PushToStack();
   std::unique_ptr<pkgCacheListParser> Parser(CreateListParser(Pkg));
   bool const newError = _error->PendingError();
   if (newError == false && Parser == nullptr)
      return true;
   if (Parser == NULL)
      return false;

   if (Prog != NULL)
      Prog->SubProgress(0, GetProgressDescription());

   if (Gen.SelectFile(PackageFile, *this, GetArchitecture(), GetComponent(), GetIndexFlags()) == false)
      return _error->Error("Problem with SelectFile %s",PackageFile.c_str());

   // Store the IMS information
   pkgCache::PkgFileIterator File = Gen.GetCurFile();
   pkgCacheGenerator::Dynamic<pkgCache::PkgFileIterator> DynFile(File);
   File->Size = Pkg.FileSize();
   File->mtime = Pkg.ModificationTime();

   if (Gen.MergeList(*Parser) == false)
      return _error->Error("Problem with MergeList %s",PackageFile.c_str());
   return true;
}
pkgCache::PkgFileIterator pkgDebianIndexFile::FindInCache(pkgCache &Cache) const
{
   std::string const FileName = IndexFileName();
   pkgCache::PkgFileIterator File = Cache.FileBegin();
   for (; File.end() == false; ++File)
   {
       if (File.FileName() == NULL || FileName != File.FileName())
	 continue;

      struct stat St;
      if (stat(File.FileName(),&St) != 0)
      {
         if (_config->FindB("Debug::pkgCacheGen", false))
	    std::clog << "DebianIndexFile::FindInCache - stat failed on " << File.FileName() << std::endl;
	 return pkgCache::PkgFileIterator(Cache);
      }
      if ((map_filesize_t)St.st_size != File->Size || St.st_mtime != File->mtime)
      {
         if (_config->FindB("Debug::pkgCacheGen", false))
	    std::clog << "DebianIndexFile::FindInCache - size (" << St.st_size << " <> " << File->Size
			<< ") or mtime (" << St.st_mtime << " <> " << File->mtime
			<< ") doesn't match for " << File.FileName() << std::endl;
	 return pkgCache::PkgFileIterator(Cache);
      }
      return File;
   }

   return File;
}

APT_CONST pkgIndexFile::~pkgIndexFile() {}
APT_CONST pkgDebianIndexTargetFile::~pkgDebianIndexTargetFile() {}
APT_CONST pkgDebianIndexRealFile::~pkgDebianIndexRealFile() {}
Commit	Line	Data
b2e465d6 AL	1	// -- mode: cpp; mode: fold --
b2e465d6 AL	2	// Description /{{{/
7db98ffc	3	// $Id: indexfile.cc,v 1.2.2.1 2003/12/24 23:09:17 mdz Exp $
b2e465d6 AL	4	/* ######################################################################
	5
	6	Index File - Abstraction for an index of archive/souce file.
	7
	8	##################################################################### */
	9	/}}}/
	10	// Include Files /{{{/
ea542140 DK	11	#include<config.h>
ea542140 DK	12
e3c1cfc7	13	#include <apt-pkg/configuration.h>
b2e465d6 AL	14	#include <apt-pkg/indexfile.h>
b2e465d6 AL	15	#include <apt-pkg/error.h>
e3c1cfc7	16	#include <apt-pkg/fileutl.h>
45df0ad2	17	#include <apt-pkg/aptconfiguration.h>
453b82a3	18	#include <apt-pkg/pkgcache.h>
c9443c01	19	#include <apt-pkg/pkgcachegen.h>
453b82a3 DK	20	#include <apt-pkg/cacheiterators.h>
453b82a3 DK	21	#include <apt-pkg/srcrecords.h>
c9443c01	22	#include <apt-pkg/progress.h>
453b82a3	23	#include <apt-pkg/macros.h>
a52f938b	24
c9443c01 DK	25	#include <apt-pkg/deblistparser.h>
	26
	27	#include <sys/types.h>
	28	#include <sys/stat.h>
	29	#include <unistd.h>
	30
453b82a3 DK	31	#include <string>
453b82a3 DK	32	#include <vector>
a52f938b	33	#include <clocale>
4f333a8b	34	#include <cstring>
c9443c01	35	#include <memory>
b2e465d6 AL	36	/}}}/
	37
	38	// Global list of Item supported
	39	static pkgIndexFile::Type *ItmList[10];
	40	pkgIndexFile::Type **pkgIndexFile::Type::GlobalList = ItmList;
	41	unsigned long pkgIndexFile::Type::GlobalListLen = 0;
	42
	43	// Type::Type - Constructor /{{{/
	44	// ---------------------------------------------------------------------
	45	/* */
	46	pkgIndexFile::Type::Type()
	47	{
	48	ItmList[GlobalListLen] = this;
dd688285 DK	49	GlobalListLen++;
dd688285 DK	50	Label = NULL;
b2e465d6 AL	51	}
	52	/}}}/
	53	// Type::GetType - Locate the type by name /{{{/
	54	// ---------------------------------------------------------------------
	55	/* */
	56	pkgIndexFile::Type pkgIndexFile::Type::GetType(const char Type)
	57	{
	58	for (unsigned I = 0; I != GlobalListLen; I++)
	59	if (strcmp(GlobalList[I]->Label,Type) == 0)
	60	return GlobalList[I];
	61	return 0;
e3c1cfc7 DK	62	}
e3c1cfc7 DK	63	/}}}/
c9443c01	64	pkgIndexFile::pkgIndexFile(bool const Trusted) : /{{{/
6c55f07a	65	d(NULL), Trusted(Trusted)
e3c1cfc7	66	{
b2e465d6 AL	67	}
b2e465d6 AL	68	/}}}/
b2e465d6	69	// IndexFile::ArchiveInfo - Stub /{{{/
c9443c01	70	std::string pkgIndexFile::ArchiveInfo(pkgCache::VerIterator const &/Ver/) const
b2e465d6	71	{
8f3ba4e8	72	return std::string();
b2e465d6 AL	73	}
	74	/}}}/
	75	// IndexFile::FindInCache - Stub /{{{/
b2e465d6 AL	76	pkgCache::PkgFileIterator pkgIndexFile::FindInCache(pkgCache &Cache) const
	77	{
	78	return pkgCache::PkgFileIterator(Cache);
	79	}
	80	/}}}/
	81	// IndexFile::SourceIndex - Stub /{{{/
65512241 DK	82	std::string pkgIndexFile::SourceInfo(pkgSrcRecords::Parser const &/Record/,
65512241 DK	83	pkgSrcRecords::File const &/File/) const
b2e465d6	84	{
8f3ba4e8	85	return std::string();
b2e465d6 AL	86	}
b2e465d6 AL	87	/}}}/
45df0ad2	88	// IndexFile::TranslationsAvailable - Check if will use Translation /{{{/
a52f938b OS	89	// ---------------------------------------------------------------------
a52f938b OS	90	/* */
45df0ad2 DK	91	bool pkgIndexFile::TranslationsAvailable() {
45df0ad2 DK	92	return (APT::Configuration::getLanguages().empty() != true);
a52f938b OS	93	}
a52f938b OS	94	/}}}/
45df0ad2	95	// IndexFile::CheckLanguageCode - Check the Language Code /{{{/
a52f938b	96	// ---------------------------------------------------------------------
45df0ad2 DK	97	/* No intern need for this method anymore as the check for correctness
	98	is already done in getLanguages(). Note also that this check is
	99	rather bad (doesn't take three character like ast into account).
	100	TODO: Remove method with next API break */
c9443c01	101	APT_DEPRECATED bool pkgIndexFile::CheckLanguageCode(const char * const Lang)
a52f938b OS	102	{
	103	if (strlen(Lang) == 2 \|\| (strlen(Lang) == 5 && Lang[2] == '_'))
	104	return true;
	105
	106	if (strcmp(Lang,"C") != 0)
	107	_error->Warning("Wrong language code %s", Lang);
	108
	109	return false;
	110	}
	111	/}}}/
45df0ad2	112	// IndexFile::LanguageCode - Return the Language Code /{{{/
a52f938b	113	// ---------------------------------------------------------------------
45df0ad2 DK	114	/* As we have now possibly more than one LanguageCode this method is
	115	supersided by a) private classmembers or b) getLanguages().
	116	TODO: Remove method with next API break */
453b82a3	117	APT_DEPRECATED std::string pkgIndexFile::LanguageCode() {
45df0ad2 DK	118	if (TranslationsAvailable() == false)
	119	return "";
	120	return APT::Configuration::getLanguages()[0];
a52f938b OS	121	}
a52f938b OS	122	/}}}/
e3c1cfc7 DK	123
	124	// IndexTarget - Constructor /{{{/
	125	IndexTarget::IndexTarget(std::string const &MetaKey, std::string const &ShortDesc,
	126	std::string const &LongDesc, std::string const &URI, bool const IsOptional,
653ef26c DK	127	bool const KeepCompressed, std::map<std::string, std::string> const &Options) :
	128	URI(URI), Description(LongDesc), ShortDesc(ShortDesc), MetaKey(MetaKey),
	129	IsOptional(IsOptional), KeepCompressed(KeepCompressed), Options(Options)
e3c1cfc7 DK	130	{
	131	}
	132	/}}}/
001c76fe	133	std::string IndexTarget::Option(OptionKeys const EnumKey) const /{{{/
e3c1cfc7	134	{
001c76fe DK	135	std::string Key;
	136	switch (EnumKey)
	137	{
	138	#define APT_CASE(X) case X: Key = #X; break
	139	APT_CASE(SITE);
	140	APT_CASE(RELEASE);
	141	APT_CASE(COMPONENT);
	142	APT_CASE(LANGUAGE);
	143	APT_CASE(ARCHITECTURE);
	144	APT_CASE(BASE_URI);
	145	APT_CASE(REPO_URI);
8881b11e	146	APT_CASE(TARGET_OF);
001c76fe DK	147	APT_CASE(CREATED_BY);
001c76fe DK	148	#undef APT_CASE
8881b11e	149	case FILENAME: return _config->FindDir("Dir::State::lists") + URItoFileName(URI);
3fd89e62 DK	150	case EXISTING_FILENAME:
	151	std::string const filename = Option(FILENAME);
	152	std::vector<std::string> const types = APT::Configuration::getCompressionTypes();
	153	for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
	154	{
	155	if (t->empty())
	156	continue;
	157	std::string const file = (t == "uncompressed") ? filename : (filename + "." + t);
	158	if (FileExists(file))
	159	return file;
	160	}
	161	return "";
001c76fe	162	}
e3c1cfc7 DK	163	std::map<std::string,std::string>::const_iterator const M = Options.find(Key);
	164	if (M == Options.end())
	165	return "";
	166	return M->second;
	167	}
	168	/}}}/
8881b11e DK	169	std::string IndexTarget::Format(std::string format) const /{{{/
	170	{
	171	for (std::map<std::string, std::string>::const_iterator O = Options.begin(); O != Options.end(); ++O)
	172	{
	173	format = SubstVar(format, std::string("$(") + O->first + ")", O->second);
	174	}
	175	format = SubstVar(format, "$(METAKEY)", MetaKey);
	176	format = SubstVar(format, "$(SHORTDESC)", ShortDesc);
	177	format = SubstVar(format, "$(DESCRIPTION)", Description);
	178	format = SubstVar(format, "$(URI)", URI);
	179	format = SubstVar(format, "$(FILENAME)", Option(IndexTarget::FILENAME));
	180	return format;
	181	}
	182	/}}}/
e3c1cfc7	183
c9443c01 DK	184	pkgDebianIndexTargetFile::pkgDebianIndexTargetFile(IndexTarget const &Target, bool const Trusted) :/{{{/
c9443c01 DK	185	pkgDebianIndexFile(Trusted), d(NULL), Target(Target)
e3c1cfc7 DK	186	{
	187	}
	188	/}}}/
c9443c01	189	std::string pkgDebianIndexTargetFile::ArchiveURI(std::string const &File) const/{{{/
e3c1cfc7	190	{
001c76fe	191	return Target.Option(IndexTarget::REPO_URI) + File;
e3c1cfc7 DK	192	}
e3c1cfc7 DK	193	/}}}/
c9443c01	194	std::string pkgDebianIndexTargetFile::Describe(bool const Short) const /{{{/
e3c1cfc7 DK	195	{
	196	if (Short)
	197	return Target.Description;
	198	return Target.Description + " (" + IndexFileName() + ")";
	199	}
	200	/}}}/
c9443c01	201	std::string pkgDebianIndexTargetFile::IndexFileName() const /{{{/
e3c1cfc7	202	{
8881b11e	203	std::string const s = Target.Option(IndexTarget::FILENAME);
e3c1cfc7 DK	204	if (FileExists(s))
	205	return s;
	206
	207	std::vector<std::string> types = APT::Configuration::getCompressionTypes();
	208	for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
	209	{
	210	std::string p = s + '.' + *t;
	211	if (FileExists(p))
	212	return p;
	213	}
	214	return s;
	215	}
	216	/}}}/
c9443c01	217	unsigned long pkgDebianIndexTargetFile::Size() const /{{{/
e3c1cfc7 DK	218	{
	219	unsigned long size = 0;
	220
	221	/* we need to ignore errors here; if the lists are absent, just return 0 */
	222	_error->PushToStack();
	223
	224	FileFd f(IndexFileName(), FileFd::ReadOnly, FileFd::Extension);
	225	if (!f.Failed())
	226	size = f.Size();
	227
	228	if (_error->PendingError() == true)
	229	size = 0;
	230	_error->RevertToStack();
	231
	232	return size;
	233	}
	234	/}}}/
c9443c01	235	bool pkgDebianIndexTargetFile::Exists() const /{{{/
e3c1cfc7 DK	236	{
	237	return FileExists(IndexFileName());
	238	}
	239	/}}}/
c9443c01 DK	240	std::string pkgDebianIndexTargetFile::GetArchitecture() const /{{{/
	241	{
	242	return Target.Option(IndexTarget::ARCHITECTURE);
	243	}
	244	/}}}/
	245	std::string pkgDebianIndexTargetFile::GetComponent() const /{{{/
	246	{
	247	return Target.Option(IndexTarget::COMPONENT);
	248	}
	249	/}}}/
	250	bool pkgDebianIndexTargetFile::OpenListFile(FileFd &Pkg, std::string const &FileName)/{{{/
	251	{
	252	if (Pkg.Open(FileName, FileFd::ReadOnly, FileFd::Extension) == false)
	253	return _error->Error("Problem opening %s",FileName.c_str());
	254	return true;
	255	}
	256	/}}}/
	257	std::string pkgDebianIndexTargetFile::GetProgressDescription() const
	258	{
	259	return Target.Description;
	260	}
	261
	262	pkgDebianIndexRealFile::pkgDebianIndexRealFile(std::string const &File, bool const Trusted) :/{{{/
	263	pkgDebianIndexFile(Trusted), d(NULL), File(flAbsPath(File))
	264	{
	265	}
	266	/}}}/
	267	// IndexRealFile::Size - Return the size of the index /{{{/
	268	unsigned long pkgDebianIndexRealFile::Size() const
	269	{
	270	struct stat S;
	271	if (stat(File.c_str(),&S) != 0)
	272	return 0;
	273	return S.st_size;
	274	}
	275	/}}}/
	276	bool pkgDebianIndexRealFile::Exists() const /{{{/
	277	{
	278	return FileExists(File);
	279	}
	280	/}}}/
	281	std::string pkgDebianIndexRealFile::Describe(bool const /Short/) const/{{{/
	282	{
	283	return File;
	284	}
	285	/}}}/
	286	std::string pkgDebianIndexRealFile::ArchiveURI(std::string const &/File/) const/{{{/
	287	{
	288	return "file:" + File;
	289	}
	290	/}}}/
	291	std::string pkgDebianIndexRealFile::IndexFileName() const /{{{/
	292	{
	293	return File;
	294	}
	295	/}}}/
	296	std::string pkgDebianIndexRealFile::GetProgressDescription() const
	297	{
	298	return File;
	299	}
	300	bool pkgDebianIndexRealFile::OpenListFile(FileFd &Pkg, std::string const &FileName)/{{{/
	301	{
	302	if (Pkg.Open(FileName, FileFd::ReadOnly, FileFd::None) == false)
	303	return _error->Error("Problem opening %s",FileName.c_str());
304	return true;
305	}
306	/}}}/
307
308	pkgDebianIndexFile::pkgDebianIndexFile(bool const Trusted) : pkgIndexFile(Trusted)
309	{
310	}
311	pkgDebianIndexFile::~pkgDebianIndexFile()
312	{
313	}
314	pkgCacheListParser * pkgDebianIndexFile::CreateListParser(FileFd &Pkg)
315	{
316	if (Pkg.IsOpen() == false)
317	return NULL;
318	_error->PushToStack();
7f8c0eed	319	pkgCacheListParser * const Parser = new debListParser(&Pkg);
c9443c01 DK	320	bool const newError = _error->PendingError();
	321	_error->MergeWithStack();
	322	return newError ? NULL : Parser;
	323	}
	324	bool pkgDebianIndexFile::Merge(pkgCacheGenerator &Gen,OpProgress * const Prog)
	325	{
	326	std::string const PackageFile = IndexFileName();
	327	FileFd Pkg;
	328	if (OpenListFile(Pkg, PackageFile) == false)
	329	return false;
	330	_error->PushToStack();
	331	std::unique_ptr<pkgCacheListParser> Parser(CreateListParser(Pkg));
	332	bool const newError = _error->PendingError();
	333	if (newError == false && Parser == nullptr)
	334	return true;
	335	if (Parser == NULL)
	336	return false;
	337
	338	if (Prog != NULL)
	339	Prog->SubProgress(0, GetProgressDescription());
	340
	341	if (Gen.SelectFile(PackageFile, *this, GetArchitecture(), GetComponent(), GetIndexFlags()) == false)
	342	return _error->Error("Problem with SelectFile %s",PackageFile.c_str());
	343
	344	// Store the IMS information
	345	pkgCache::PkgFileIterator File = Gen.GetCurFile();
	346	pkgCacheGenerator::Dynamic<pkgCache::PkgFileIterator> DynFile(File);
	347	File->Size = Pkg.FileSize();
	348	File->mtime = Pkg.ModificationTime();
	349
	350	if (Gen.MergeList(*Parser) == false)
	351	return _error->Error("Problem with MergeList %s",PackageFile.c_str());
	352	return true;
	353	}
	354	pkgCache::PkgFileIterator pkgDebianIndexFile::FindInCache(pkgCache &Cache) const
	355	{
	356	std::string const FileName = IndexFileName();
	357	pkgCache::PkgFileIterator File = Cache.FileBegin();
	358	for (; File.end() == false; ++File)
	359	{
	360	if (File.FileName() == NULL \|\| FileName != File.FileName())
	361	continue;
	362
	363	struct stat St;
	364	if (stat(File.FileName(),&St) != 0)
	365	{
	366	if (_config->FindB("Debug::pkgCacheGen", false))
	367	std::clog << "DebianIndexFile::FindInCache - stat failed on " << File.FileName() << std::endl;
	368	return pkgCache::PkgFileIterator(Cache);
	369	}
	370	if ((map_filesize_t)St.st_size != File->Size \|\| St.st_mtime != File->mtime)
	371	{
	372	if (_config->FindB("Debug::pkgCacheGen", false))
	373	std::clog << "DebianIndexFile::FindInCache - size (" << St.st_size << " <> " << File->Size
	374	<< ") or mtime (" << St.st_mtime << " <> " << File->mtime
	375	<< ") doesn't match for " << File.FileName() << std::endl;
	376	return pkgCache::PkgFileIterator(Cache);
	377	}
	378	return File;
	379	}
	380
	381	return File;
	382	}
c8a4ce6c DK	383
c8a4ce6c DK	384	APT_CONST pkgIndexFile::~pkgIndexFile() {}
c9443c01 DK	385	APT_CONST pkgDebianIndexTargetFile::~pkgDebianIndexTargetFile() {}
c9443c01 DK	386	APT_CONST pkgDebianIndexRealFile::~pkgDebianIndexRealFile() {}