[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/strutl.h>
#include <apt-pkg/progress.h>
#include <apt-pkg/deblistparser.h>
#include <apt-pkg/macros.h>

#include <apt-pkg/debindexfile.h>

#include <sys/stat.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
{
   debDebPkgFileIndex const * const debfile = dynamic_cast<debDebPkgFileIndex const*>(this);
   if (debfile != nullptr)
      return debfile->ArchiveInfo_impl(Ver);
   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		/*{{{*/
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			/*{{{*/
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);
      APT_CASE(PDIFFS);
      APT_CASE(DEFAULTENABLED);
      APT_CASE(COMPRESSIONTYPES);
      APT_CASE(SOURCESENTRY);
      APT_CASE(BY_HASH);
#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 = VectorizeString(Option(COMPRESSIONTYPES), ' ');
	 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;
}
									/*}}}*/
bool IndexTarget::OptionBool(OptionKeys const EnumKey) const		/*{{{*/
{
   return StringToBool(Option(EnumKey));
}
									/*}}}*/
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> const types = VectorizeString(Target.Option(IndexTarget::COMPRESSIONTYPES), ' ');
   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 &pFile, bool const Trusted) :/*{{{*/
   pkgDebianIndexFile(Trusted), d(NULL)
{
   if (pFile == "/nonexistent/stdin")
      File = pFile;
   else
      File = flAbsPath(pFile);
}
									/*}}}*/
// 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();
   _error->MergeWithStack();
   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>
d7a51997	22	#include <apt-pkg/strutl.h>
c9443c01	23	#include <apt-pkg/progress.h>
64b66a46	24	#include <apt-pkg/deblistparser.h>
453b82a3	25	#include <apt-pkg/macros.h>
a52f938b	26
64b66a46	27	#include <apt-pkg/debindexfile.h>
c9443c01	28
c9443c01	29	#include <sys/stat.h>
c9443c01	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 /{{{/
64b66a46	70	std::string pkgIndexFile::ArchiveInfo(pkgCache::VerIterator const &Ver) const
b2e465d6	71	{
64b66a46 DK	72	debDebPkgFileIndex const * const debfile = dynamic_cast<debDebPkgFileIndex const*>(this);
	73	if (debfile != nullptr)
	74	return debfile->ArchiveInfo_impl(Ver);
8f3ba4e8	75	return std::string();
b2e465d6 AL	76	}
	77	/}}}/
	78	// IndexFile::FindInCache - Stub /{{{/
b2e465d6 AL	79	pkgCache::PkgFileIterator pkgIndexFile::FindInCache(pkgCache &Cache) const
	80	{
	81	return pkgCache::PkgFileIterator(Cache);
	82	}
	83	/}}}/
	84	// IndexFile::SourceIndex - Stub /{{{/
65512241 DK	85	std::string pkgIndexFile::SourceInfo(pkgSrcRecords::Parser const &/Record/,
65512241 DK	86	pkgSrcRecords::File const &/File/) const
b2e465d6	87	{
8f3ba4e8	88	return std::string();
b2e465d6 AL	89	}
b2e465d6 AL	90	/}}}/
45df0ad2	91	// IndexFile::TranslationsAvailable - Check if will use Translation /{{{/
45df0ad2 DK	92	bool pkgIndexFile::TranslationsAvailable() {
45df0ad2 DK	93	return (APT::Configuration::getLanguages().empty() != true);
a52f938b OS	94	}
a52f938b OS	95	/}}}/
45df0ad2	96	// IndexFile::CheckLanguageCode - Check the Language Code /{{{/
5dd00edb	97	bool pkgIndexFile::CheckLanguageCode(const char * const Lang)
a52f938b OS	98	{
	99	if (strlen(Lang) == 2 \|\| (strlen(Lang) == 5 && Lang[2] == '_'))
	100	return true;
	101
	102	if (strcmp(Lang,"C") != 0)
	103	_error->Warning("Wrong language code %s", Lang);
	104
	105	return false;
	106	}
	107	/}}}/
45df0ad2	108	// IndexFile::LanguageCode - Return the Language Code /{{{/
5dd00edb	109	std::string pkgIndexFile::LanguageCode() {
45df0ad2 DK	110	if (TranslationsAvailable() == false)
	111	return "";
	112	return APT::Configuration::getLanguages()[0];
a52f938b OS	113	}
a52f938b OS	114	/}}}/
e3c1cfc7 DK	115
	116	// IndexTarget - Constructor /{{{/
	117	IndexTarget::IndexTarget(std::string const &MetaKey, std::string const &ShortDesc,
	118	std::string const &LongDesc, std::string const &URI, bool const IsOptional,
653ef26c DK	119	bool const KeepCompressed, std::map<std::string, std::string> const &Options) :
	120	URI(URI), Description(LongDesc), ShortDesc(ShortDesc), MetaKey(MetaKey),
	121	IsOptional(IsOptional), KeepCompressed(KeepCompressed), Options(Options)
e3c1cfc7 DK	122	{
	123	}
	124	/}}}/
001c76fe	125	std::string IndexTarget::Option(OptionKeys const EnumKey) const /{{{/
e3c1cfc7	126	{
001c76fe DK	127	std::string Key;
	128	switch (EnumKey)
	129	{
	130	#define APT_CASE(X) case X: Key = #X; break
	131	APT_CASE(SITE);
	132	APT_CASE(RELEASE);
	133	APT_CASE(COMPONENT);
	134	APT_CASE(LANGUAGE);
	135	APT_CASE(ARCHITECTURE);
	136	APT_CASE(BASE_URI);
	137	APT_CASE(REPO_URI);
8881b11e	138	APT_CASE(TARGET_OF);
001c76fe	139	APT_CASE(CREATED_BY);
1a3a14ac	140	APT_CASE(PDIFFS);
9adb9778	141	APT_CASE(DEFAULTENABLED);
d7a51997	142	APT_CASE(COMPRESSIONTYPES);
3090ae69	143	APT_CASE(SOURCESENTRY);
24e8f24e	144	APT_CASE(BY_HASH);
001c76fe	145	#undef APT_CASE
8881b11e	146	case FILENAME: return _config->FindDir("Dir::State::lists") + URItoFileName(URI);
3fd89e62 DK	147	case EXISTING_FILENAME:
3fd89e62 DK	148	std::string const filename = Option(FILENAME);
d7a51997	149	std::vector<std::string> const types = VectorizeString(Option(COMPRESSIONTYPES), ' ');
3fd89e62 DK	150	for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
	151	{
	152	if (t->empty())
	153	continue;
	154	std::string const file = (t == "uncompressed") ? filename : (filename + "." + t);
	155	if (FileExists(file))
	156	return file;
	157	}
	158	return "";
001c76fe	159	}
e3c1cfc7 DK	160	std::map<std::string,std::string>::const_iterator const M = Options.find(Key);
	161	if (M == Options.end())
	162	return "";
	163	return M->second;
	164	}
	165	/}}}/
1a3a14ac DK	166	bool IndexTarget::OptionBool(OptionKeys const EnumKey) const /{{{/
	167	{
	168	return StringToBool(Option(EnumKey));
	169	}
	170	/}}}/
8881b11e DK	171	std::string IndexTarget::Format(std::string format) const /{{{/
	172	{
	173	for (std::map<std::string, std::string>::const_iterator O = Options.begin(); O != Options.end(); ++O)
	174	{
	175	format = SubstVar(format, std::string("$(") + O->first + ")", O->second);
	176	}
	177	format = SubstVar(format, "$(METAKEY)", MetaKey);
	178	format = SubstVar(format, "$(SHORTDESC)", ShortDesc);
	179	format = SubstVar(format, "$(DESCRIPTION)", Description);
	180	format = SubstVar(format, "$(URI)", URI);
	181	format = SubstVar(format, "$(FILENAME)", Option(IndexTarget::FILENAME));
	182	return format;
	183	}
	184	/}}}/
e3c1cfc7	185
c9443c01 DK	186	pkgDebianIndexTargetFile::pkgDebianIndexTargetFile(IndexTarget const &Target, bool const Trusted) :/{{{/
c9443c01 DK	187	pkgDebianIndexFile(Trusted), d(NULL), Target(Target)
e3c1cfc7 DK	188	{
	189	}
	190	/}}}/
c9443c01	191	std::string pkgDebianIndexTargetFile::ArchiveURI(std::string const &File) const/{{{/
e3c1cfc7	192	{
001c76fe	193	return Target.Option(IndexTarget::REPO_URI) + File;
e3c1cfc7 DK	194	}
e3c1cfc7 DK	195	/}}}/
c9443c01	196	std::string pkgDebianIndexTargetFile::Describe(bool const Short) const /{{{/
e3c1cfc7 DK	197	{
	198	if (Short)
	199	return Target.Description;
	200	return Target.Description + " (" + IndexFileName() + ")";
	201	}
	202	/}}}/
c9443c01	203	std::string pkgDebianIndexTargetFile::IndexFileName() const /{{{/
e3c1cfc7	204	{
8881b11e	205	std::string const s = Target.Option(IndexTarget::FILENAME);
e3c1cfc7 DK	206	if (FileExists(s))
	207	return s;
	208
d7a51997	209	std::vector<std::string> const types = VectorizeString(Target.Option(IndexTarget::COMPRESSIONTYPES), ' ');
e3c1cfc7 DK	210	for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t)
	211	{
	212	std::string p = s + '.' + *t;
	213	if (FileExists(p))
	214	return p;
	215	}
	216	return s;
	217	}
	218	/}}}/
c9443c01	219	unsigned long pkgDebianIndexTargetFile::Size() const /{{{/
e3c1cfc7 DK	220	{
	221	unsigned long size = 0;
	222
	223	/* we need to ignore errors here; if the lists are absent, just return 0 */
	224	_error->PushToStack();
	225
	226	FileFd f(IndexFileName(), FileFd::ReadOnly, FileFd::Extension);
	227	if (!f.Failed())
	228	size = f.Size();
	229
	230	if (_error->PendingError() == true)
	231	size = 0;
	232	_error->RevertToStack();
	233
	234	return size;
	235	}
	236	/}}}/
c9443c01	237	bool pkgDebianIndexTargetFile::Exists() const /{{{/
e3c1cfc7 DK	238	{
	239	return FileExists(IndexFileName());
	240	}
	241	/}}}/
c9443c01 DK	242	std::string pkgDebianIndexTargetFile::GetArchitecture() const /{{{/
	243	{
	244	return Target.Option(IndexTarget::ARCHITECTURE);
	245	}
	246	/}}}/
	247	std::string pkgDebianIndexTargetFile::GetComponent() const /{{{/
	248	{
	249	return Target.Option(IndexTarget::COMPONENT);
	250	}
	251	/}}}/
	252	bool pkgDebianIndexTargetFile::OpenListFile(FileFd &Pkg, std::string const &FileName)/{{{/
	253	{
	254	if (Pkg.Open(FileName, FileFd::ReadOnly, FileFd::Extension) == false)
	255	return _error->Error("Problem opening %s",FileName.c_str());
	256	return true;
	257	}
	258	/}}}/
	259	std::string pkgDebianIndexTargetFile::GetProgressDescription() const
	260	{
	261	return Target.Description;
	262	}
	263
7f58427b DK	264	pkgDebianIndexRealFile::pkgDebianIndexRealFile(std::string const &pFile, bool const Trusted) :/{{{/
7f58427b DK	265	pkgDebianIndexFile(Trusted), d(NULL)
c9443c01	266	{
7f58427b DK	267	if (pFile == "/nonexistent/stdin")
	268	File = pFile;
	269	else
	270	File = flAbsPath(pFile);
c9443c01 DK	271	}
	272	/}}}/
	273	// IndexRealFile::Size - Return the size of the index /{{{/
	274	unsigned long pkgDebianIndexRealFile::Size() const
	275	{
	276	struct stat S;
	277	if (stat(File.c_str(),&S) != 0)
	278	return 0;
	279	return S.st_size;
	280	}
	281	/}}}/
	282	bool pkgDebianIndexRealFile::Exists() const /{{{/
	283	{
	284	return FileExists(File);
	285	}
	286	/}}}/
	287	std::string pkgDebianIndexRealFile::Describe(bool const /Short/) const/{{{/
	288	{
	289	return File;
	290	}
	291	/}}}/
	292	std::string pkgDebianIndexRealFile::ArchiveURI(std::string const &/File/) const/{{{/
	293	{
	294	return "file:" + File;
	295	}
	296	/}}}/
	297	std::string pkgDebianIndexRealFile::IndexFileName() const /{{{/
	298	{
	299	return File;
	300	}
	301	/}}}/
	302	std::string pkgDebianIndexRealFile::GetProgressDescription() const
	303	{
	304	return File;
	305	}
	306	bool pkgDebianIndexRealFile::OpenListFile(FileFd &Pkg, std::string const &FileName)/{{{/
	307	{
	308	if (Pkg.Open(FileName, FileFd::ReadOnly, FileFd::None) == false)
	309	return _error->Error("Problem opening %s",FileName.c_str());
	310	return true;
	311	}
	312	/}}}/
	313
	314	pkgDebianIndexFile::pkgDebianIndexFile(bool const Trusted) : pkgIndexFile(Trusted)
	315	{
	316	}
	317	pkgDebianIndexFile::~pkgDebianIndexFile()
	318	{
	319	}
	320	pkgCacheListParser * pkgDebianIndexFile::CreateListParser(FileFd &Pkg)
	321	{
	322	if (Pkg.IsOpen() == false)
	323	return NULL;
	324	_error->PushToStack();
7f8c0eed	325	pkgCacheListParser * const Parser = new debListParser(&Pkg);
c9443c01 DK	326	bool const newError = _error->PendingError();
	327	_error->MergeWithStack();
	328	return newError ? NULL : Parser;
	329	}
	330	bool pkgDebianIndexFile::Merge(pkgCacheGenerator &Gen,OpProgress * const Prog)
	331	{
	332	std::string const PackageFile = IndexFileName();
	333	FileFd Pkg;
	334	if (OpenListFile(Pkg, PackageFile) == false)
	335	return false;
	336	_error->PushToStack();
	337	std::unique_ptr<pkgCacheListParser> Parser(CreateListParser(Pkg));
	338	bool const newError = _error->PendingError();
95278287	339	_error->MergeWithStack();
c9443c01 DK	340	if (newError == false && Parser == nullptr)
	341	return true;
	342	if (Parser == NULL)
	343	return false;
	344
	345	if (Prog != NULL)
	346	Prog->SubProgress(0, GetProgressDescription());
	347
	348	if (Gen.SelectFile(PackageFile, *this, GetArchitecture(), GetComponent(), GetIndexFlags()) == false)
	349	return _error->Error("Problem with SelectFile %s",PackageFile.c_str());
	350
	351	// Store the IMS information
	352	pkgCache::PkgFileIterator File = Gen.GetCurFile();
	353	pkgCacheGenerator::Dynamic<pkgCache::PkgFileIterator> DynFile(File);
	354	File->Size = Pkg.FileSize();
	355	File->mtime = Pkg.ModificationTime();
	356
	357	if (Gen.MergeList(*Parser) == false)
	358	return _error->Error("Problem with MergeList %s",PackageFile.c_str());
	359	return true;
	360	}
	361	pkgCache::PkgFileIterator pkgDebianIndexFile::FindInCache(pkgCache &Cache) const
	362	{
	363	std::string const FileName = IndexFileName();
	364	pkgCache::PkgFileIterator File = Cache.FileBegin();
	365	for (; File.end() == false; ++File)
	366	{
	367	if (File.FileName() == NULL \|\| FileName != File.FileName())
	368	continue;
	369
	370	struct stat St;
	371	if (stat(File.FileName(),&St) != 0)
	372	{
	373	if (_config->FindB("Debug::pkgCacheGen", false))
	374	std::clog << "DebianIndexFile::FindInCache - stat failed on " << File.FileName() << std::endl;
	375	return pkgCache::PkgFileIterator(Cache);
	376	}
	377	if ((map_filesize_t)St.st_size != File->Size \|\| St.st_mtime != File->mtime)
	378	{
	379	if (_config->FindB("Debug::pkgCacheGen", false))
	380	std::clog << "DebianIndexFile::FindInCache - size (" << St.st_size << " <> " << File->Size
	381	<< ") or mtime (" << St.st_mtime << " <> " << File->mtime
	382	<< ") doesn't match for " << File.FileName() << std::endl;
	383	return pkgCache::PkgFileIterator(Cache);
	384	}
	385	return File;
	386	}
	387
	388	return File;
	389	}
c8a4ce6c DK	390
c8a4ce6c DK	391	APT_CONST pkgIndexFile::~pkgIndexFile() {}
c9443c01 DK	392	APT_CONST pkgDebianIndexTargetFile::~pkgDebianIndexTargetFile() {}
c9443c01 DK	393	APT_CONST pkgDebianIndexRealFile::~pkgDebianIndexRealFile() {}