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

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: cachefile.cc,v 1.8 2002/04/27 04:28:04 jgg Exp $
/* ######################################################################
   
   CacheFile - Simple wrapper class for opening, generating and whatnot
   
   This class implements a simple 2 line mechanism to open various sorts
   of caches. It can operate as root, as not root, show progress and so on,
   it transparently handles everything necessary.
   
   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#include <config.h>

#include <apt-pkg/cachefile.h>
#include <apt-pkg/error.h>
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/pkgcachegen.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/policy.h>
#include <apt-pkg/pkgsystem.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/progress.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/mmap.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/indexfile.h>

#include <string.h>
#include <unistd.h>
#include <string>
#include <vector>
#include <memory>

#include <apti18n.h>
									/*}}}*/
// CacheFile::CacheFile - Constructor					/*{{{*/
pkgCacheFile::pkgCacheFile() : d(NULL), ExternOwner(false), Map(NULL), Cache(NULL),
				DCache(NULL), SrcList(NULL), Policy(NULL)
{
}
pkgCacheFile::pkgCacheFile(pkgDepCache * const Owner) : d(NULL), ExternOwner(true),
   Map(&Owner->GetCache().GetMap()), Cache(&Owner->GetCache()),
   DCache(Owner), SrcList(NULL), Policy(NULL)
{
}
									/*}}}*/
// CacheFile::~CacheFile - Destructor					/*{{{*/
// ---------------------------------------------------------------------
/* */
pkgCacheFile::~pkgCacheFile()
{
   if (ExternOwner == false)
   {
      delete DCache;
      delete Cache;
      delete Map;
   }
   delete Policy;
   delete SrcList;
   if (ExternOwner == false)
      _system->UnLock(true);
}
									/*}}}*/
// CacheFile::BuildCaches - Open and build the cache files		/*{{{*/
class APT_HIDDEN ScopedErrorMerge {
public:
   ScopedErrorMerge() { _error->PushToStack(); }
   ~ScopedErrorMerge() { _error->MergeWithStack(); }
};

bool pkgCacheFile::BuildCaches(OpProgress *Progress, bool WithLock)
{
   std::unique_ptr<pkgCache> Cache;
   std::unique_ptr<MMap> Map;

   if (this->Cache != NULL)
      return true;

   ScopedErrorMerge sem;
   if (_config->FindB("pkgCacheFile::Generate", true) == false)
   {
      FileFd file(_config->FindFile("Dir::Cache::pkgcache"), FileFd::ReadOnly);
      if (file.IsOpen() == false || file.Failed())
	 return false;
      Map.reset(new MMap(file, MMap::Public|MMap::ReadOnly));
      if (unlikely(Map->validData() == false))
	 return false;
      Cache.reset(new pkgCache(Map.get()));
      if (_error->PendingError() == true)
	 return false;

      this->Cache = Cache.release();
      this->Map = Map.release();
      return true;
   }

   if (WithLock == true)
      if (_system->Lock() == false)
	 return false;

   if (_error->PendingError() == true)
      return false;

   if (BuildSourceList(Progress) == false)
      return false;

   // Read the caches
   MMap *TmpMap = nullptr;
   pkgCache *TmpCache = nullptr;
   bool Res = pkgCacheGenerator::MakeStatusCache(*SrcList,Progress,&TmpMap, &TmpCache, true);
   Map.reset(TmpMap);
   Cache.reset(TmpCache);
   if (Progress != NULL)
      Progress->Done();
   if (Res == false)
      return _error->Error(_("The package lists or status file could not be parsed or opened."));

   /* This sux, remove it someday */
   if (_error->PendingError() == true)
      _error->Warning(_("You may want to run apt-get update to correct these problems"));

   if (Cache == nullptr)
      Cache.reset(new pkgCache(Map.get()));
   if (_error->PendingError() == true)
      return false;
   this->Map = Map.release();
   this->Cache = Cache.release();

   return true;
}
									/*}}}*/
// CacheFile::BuildSourceList - Open and build all relevant sources.list/*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgCacheFile::BuildSourceList(OpProgress * /*Progress*/)
{
   std::unique_ptr<pkgSourceList> SrcList;
   if (this->SrcList != NULL)
      return true;

   SrcList.reset(new pkgSourceList());
   if (SrcList->ReadMainList() == false)
      return _error->Error(_("The list of sources could not be read."));
   this->SrcList = SrcList.release();
   return true;
}
									/*}}}*/
// CacheFile::BuildPolicy - Open and build all relevant preferences	/*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgCacheFile::BuildPolicy(OpProgress * /*Progress*/)
{
   std::unique_ptr<pkgPolicy> Policy;
   if (this->Policy != NULL)
      return true;

   Policy.reset(new pkgPolicy(Cache));
   if (_error->PendingError() == true)
      return false;

   if (ReadPinFile(*Policy) == false || ReadPinDir(*Policy) == false)
      return false;

   this->Policy = Policy.release();
   return true;
}
									/*}}}*/
// CacheFile::BuildDepCache - Open and build the dependency cache	/*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgCacheFile::BuildDepCache(OpProgress *Progress)
{
   if (BuildCaches(Progress, false) == false)
      return false;

   std::unique_ptr<pkgDepCache> DCache;
   if (this->DCache != NULL)
      return true;

   if (BuildPolicy(Progress) == false)
      return false;

   DCache.reset(new pkgDepCache(Cache,Policy));
   if (_error->PendingError() == true)
      return false;
   if (DCache->Init(Progress) == false)
      return false;

   this->DCache = DCache.release();
   return true;
}
									/*}}}*/
// CacheFile::Open - Open the cache files, creating if necessary	/*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgCacheFile::Open(OpProgress *Progress, bool WithLock)
{
   if (BuildCaches(Progress,WithLock) == false)
      return false;

   if (BuildPolicy(Progress) == false)
      return false;

   if (BuildDepCache(Progress) == false)
      return false;

   if (Progress != NULL)
      Progress->Done();
   if (_error->PendingError() == true)
      return false;
   
   return true;
}
									/*}}}*/
bool pkgCacheFile::AddIndexFile(pkgIndexFile * const File)		/*{{{*/
{
   if (SrcList == NULL)
      if (BuildSourceList() == false)
	 return false;
   SrcList->AddVolatileFile(File);

   if (Cache == nullptr || File->HasPackages() == false || File->Exists() == false)
      return true;

   if (File->FindInCache(*Cache).end() == false)
      return _error->Warning("Duplicate sources.list entry %s",
	    File->Describe().c_str());

   if (ExternOwner == false)
   {
      delete DCache;
      delete Cache;
   }
   delete Policy;
   DCache = NULL;
   Policy = NULL;
   Cache = NULL;

   if (ExternOwner == false)
   {
      // a dynamic mmap means that we have build at least parts of the cache
      // in memory – which we might or might not have written to disk.
      // Throwing away would therefore be a very costly operation we want to avoid
      DynamicMMap * dynmmap = dynamic_cast<DynamicMMap*>(Map);
      if (dynmmap != nullptr)
      {
	 {
	    pkgCacheGenerator Gen(dynmmap, nullptr);
	    if (Gen.Start() == false || File->Merge(Gen, nullptr) == false)
	       return false;
	 }
	 Cache = new pkgCache(Map);
	 if (_error->PendingError() == true) {
	    delete Cache;
	    Cache = nullptr;
	    return false;
	 }
	 return true;
      }
      else
      {
	 delete Map;
	 Map = NULL;
      }
   }
   else
   {
      ExternOwner = false;
      Map = NULL;
   }
   _system->UnLock(true);
   return true;
}
									/*}}}*/
// CacheFile::RemoveCaches - remove all cache files from disk		/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgCacheFile::RemoveCaches()
{
   std::string const pkgcache = _config->FindFile("Dir::cache::pkgcache");
   std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");

   if (pkgcache.empty() == false && RealFileExists(pkgcache) == true)
      RemoveFile("RemoveCaches", pkgcache);
   if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)
      RemoveFile("RemoveCaches", srcpkgcache);
   if (pkgcache.empty() == false)
   {
      std::string cachedir = flNotFile(pkgcache);
      std::string cachefile = flNotDir(pkgcache);
      if (cachedir.empty() != true && cachefile.empty() != true && DirectoryExists(cachedir) == true)
      {
	 cachefile.append(".");
	 std::vector<std::string> caches = GetListOfFilesInDir(cachedir, false);
	 for (std::vector<std::string>::const_iterator file = caches.begin(); file != caches.end(); ++file)
	 {
	    std::string nuke = flNotDir(*file);
	    if (strncmp(cachefile.c_str(), nuke.c_str(), cachefile.length()) != 0)
	       continue;
	    RemoveFile("RemoveCaches", *file);
	 }
      }
   }

   if (srcpkgcache.empty() == true)
      return;

   std::string cachedir = flNotFile(srcpkgcache);
   std::string cachefile = flNotDir(srcpkgcache);
   if (cachedir.empty() == true || cachefile.empty() == true || DirectoryExists(cachedir) == false)
      return;
   cachefile.append(".");
   std::vector<std::string> caches = GetListOfFilesInDir(cachedir, false);
   for (std::vector<std::string>::const_iterator file = caches.begin(); file != caches.end(); ++file)
   {
      std::string nuke = flNotDir(*file);
      if (strncmp(cachefile.c_str(), nuke.c_str(), cachefile.length()) != 0)
	 continue;
      RemoveFile("RemoveCaches", *file);
   }
}
									/*}}}*/
// CacheFile::Close - close the cache files				/*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgCacheFile::Close()
{
   if (ExternOwner == false)
   {
      delete DCache;
      delete Cache;
      delete Map;
   }
   else
      ExternOwner = false;
   delete Policy;
   delete SrcList;
   _system->UnLock(true);

   Map = NULL;
   DCache = NULL;
   Policy = NULL;
   Cache = NULL;
   SrcList = NULL;
}
									/*}}}*/
Commit	Line	Data
2d11135a AL	1	// -- mode: cpp; mode: fold --
2d11135a AL	2	// Description /{{{/
0077d829	3	// $Id: cachefile.cc,v 1.8 2002/04/27 04:28:04 jgg Exp $
2d11135a AL	4	/* ######################################################################
	5
	6	CacheFile - Simple wrapper class for opening, generating and whatnot
	7
	8	This class implements a simple 2 line mechanism to open various sorts
	9	of caches. It can operate as root, as not root, show progress and so on,
	10	it transparently handles everything necessary.
	11
	12	##################################################################### */
	13	/}}}/
	14	// Include Files /{{{/
ea542140 DK	15	#include <config.h>
ea542140 DK	16
2d11135a AL	17	#include <apt-pkg/cachefile.h>
	18	#include <apt-pkg/error.h>
	19	#include <apt-pkg/sourcelist.h>
	20	#include <apt-pkg/pkgcachegen.h>
	21	#include <apt-pkg/configuration.h>
b2e465d6 AL	22	#include <apt-pkg/policy.h>
b2e465d6 AL	23	#include <apt-pkg/pkgsystem.h>
614adaa0	24	#include <apt-pkg/fileutl.h>
472ff00e	25	#include <apt-pkg/progress.h>
453b82a3 DK	26	#include <apt-pkg/depcache.h>
	27	#include <apt-pkg/mmap.h>
	28	#include <apt-pkg/pkgcache.h>
a249b3e6	29	#include <apt-pkg/indexfile.h>
453b82a3 DK	30
	31	#include <string.h>
	32	#include <unistd.h>
	33	#include <string>
	34	#include <vector>
f40fdaa4	35	#include <memory>
ea542140	36
b2e465d6	37	#include <apti18n.h>
2d11135a	38	/}}}/
2d11135a	39	// CacheFile::CacheFile - Constructor /{{{/
9112f777 DK	40	pkgCacheFile::pkgCacheFile() : d(NULL), ExternOwner(false), Map(NULL), Cache(NULL),
	41	DCache(NULL), SrcList(NULL), Policy(NULL)
	42	{
	43	}
	44	pkgCacheFile::pkgCacheFile(pkgDepCache * const Owner) : d(NULL), ExternOwner(true),
	45	Map(&Owner->GetCache().GetMap()), Cache(&Owner->GetCache()),
	46	DCache(Owner), SrcList(NULL), Policy(NULL)
2d11135a AL	47	{
	48	}
	49	/}}}/
b2e465d6	50	// CacheFile::~CacheFile - Destructor /{{{/
2d11135a AL	51	// ---------------------------------------------------------------------
	52	/* */
	53	pkgCacheFile::~pkgCacheFile()
	54	{
9112f777 DK	55	if (ExternOwner == false)
	56	{
	57	delete DCache;
	58	delete Cache;
	59	delete Map;
	60	}
b2e465d6	61	delete Policy;
3f8621c5	62	delete SrcList;
9112f777 DK	63	if (ExternOwner == false)
9112f777 DK	64	_system->UnLock(true);
3f8621c5	65	}
2d11135a	66	/}}}/
0077d829	67	// CacheFile::BuildCaches - Open and build the cache files /{{{/
95278287 DK	68	class APT_HIDDEN ScopedErrorMerge {
	69	public:
	70	ScopedErrorMerge() { _error->PushToStack(); }
	71	~ScopedErrorMerge() { _error->MergeWithStack(); }
	72	};
f40fdaa4	73
2e5f4e45	74	bool pkgCacheFile::BuildCaches(OpProgress *Progress, bool WithLock)
2d11135a	75	{
f40fdaa4 JAK	76	std::unique_ptr<pkgCache> Cache;
	77	std::unique_ptr<MMap> Map;
	78
	79	if (this->Cache != NULL)
3f8621c5 DK	80	return true;
3f8621c5 DK	81
95278287	82	ScopedErrorMerge sem;
3f8621c5 DK	83	if (_config->FindB("pkgCacheFile::Generate", true) == false)
3f8621c5 DK	84	{
3d8232bf	85	FileFd file(_config->FindFile("Dir::Cache::pkgcache"), FileFd::ReadOnly);
95278287 DK	86	if (file.IsOpen() == false \|\| file.Failed())
95278287 DK	87	return false;
f40fdaa4	88	Map.reset(new MMap(file, MMap::Public\|MMap::ReadOnly));
6789e01e DK	89	if (unlikely(Map->validData() == false))
6789e01e DK	90	return false;
f40fdaa4 JAK	91	Cache.reset(new pkgCache(Map.get()));
	92	if (_error->PendingError() == true)
	93	return false;
	94
	95	this->Cache = Cache.release();
	96	this->Map = Map.release();
	97	return true;
3f8621c5 DK	98	}
3f8621c5 DK	99
2d11135a	100	if (WithLock == true)
b2e465d6 AL	101	if (_system->Lock() == false)
b2e465d6 AL	102	return false;
c4171975	103
2d11135a AL	104	if (_error->PendingError() == true)
2d11135a AL	105	return false;
3f8621c5	106
f40fdaa4 JAK	107	if (BuildSourceList(Progress) == false)
f40fdaa4 JAK	108	return false;
b2e465d6 AL	109
b2e465d6 AL	110	// Read the caches
f40fdaa4 JAK	111	MMap *TmpMap = nullptr;
	112	pkgCache *TmpCache = nullptr;
	113	bool Res = pkgCacheGenerator::MakeStatusCache(*SrcList,Progress,&TmpMap, &TmpCache, true);
	114	Map.reset(TmpMap);
	115	Cache.reset(TmpCache);
2e5f4e45 DK	116	if (Progress != NULL)
2e5f4e45 DK	117	Progress->Done();
b2e465d6 AL	118	if (Res == false)
	119	return _error->Error(_("The package lists or status file could not be parsed or opened."));
	120
	121	/* This sux, remove it someday */
95278287	122	if (_error->PendingError() == true)
a7c835af	123	_error->Warning(_("You may want to run apt-get update to correct these problems"));
b2e465d6	124
f1616039	125	if (Cache == nullptr)
f40fdaa4	126	Cache.reset(new pkgCache(Map.get()));
b2e465d6 AL	127	if (_error->PendingError() == true)
b2e465d6 AL	128	return false;
f40fdaa4 JAK	129	this->Map = Map.release();
	130	this->Cache = Cache.release();
	131
0077d829 AL	132	return true;
	133	}
	134	/}}}/
3f8621c5 DK	135	// CacheFile::BuildSourceList - Open and build all relevant sources.list/{{{/
	136	// ---------------------------------------------------------------------
	137	/* */
65512241	138	bool pkgCacheFile::BuildSourceList(OpProgress * /Progress/)
3f8621c5	139	{
f40fdaa4 JAK	140	std::unique_ptr<pkgSourceList> SrcList;
f40fdaa4 JAK	141	if (this->SrcList != NULL)
3f8621c5 DK	142	return true;
3f8621c5 DK	143
f40fdaa4	144	SrcList.reset(new pkgSourceList());
3f8621c5 DK	145	if (SrcList->ReadMainList() == false)
3f8621c5 DK	146	return _error->Error(_("The list of sources could not be read."));
f40fdaa4	147	this->SrcList = SrcList.release();
3f8621c5 DK	148	return true;
	149	}
	150	/}}}/
2e5f4e45	151	// CacheFile::BuildPolicy - Open and build all relevant preferences /{{{/
0077d829 AL	152	// ---------------------------------------------------------------------
0077d829 AL	153	/* */
65512241	154	bool pkgCacheFile::BuildPolicy(OpProgress * /Progress/)
0077d829	155	{
f40fdaa4 JAK	156	std::unique_ptr<pkgPolicy> Policy;
f40fdaa4 JAK	157	if (this->Policy != NULL)
3f8621c5 DK	158	return true;
3f8621c5 DK	159
f40fdaa4	160	Policy.reset(new pkgPolicy(Cache));
b2e465d6 AL	161	if (_error->PendingError() == true)
b2e465d6 AL	162	return false;
6009e60d	163
e68ca100	164	if (ReadPinFile(Policy) == false \|\| ReadPinDir(Policy) == false)
b2e465d6	165	return false;
2e5f4e45	166
f40fdaa4	167	this->Policy = Policy.release();
2e5f4e45 DK	168	return true;
	169	}
	170	/}}}/
	171	// CacheFile::BuildDepCache - Open and build the dependency cache /{{{/
	172	// ---------------------------------------------------------------------
	173	/* */
	174	bool pkgCacheFile::BuildDepCache(OpProgress *Progress)
	175	{
fdf9eef4 DK	176	if (BuildCaches(Progress, false) == false)
	177	return false;
	178
f40fdaa4 JAK	179	std::unique_ptr<pkgDepCache> DCache;
f40fdaa4 JAK	180	if (this->DCache != NULL)
3f8621c5 DK	181	return true;
3f8621c5 DK	182
592d06b6 MV	183	if (BuildPolicy(Progress) == false)
	184	return false;
	185
f40fdaa4	186	DCache.reset(new pkgDepCache(Cache,Policy));
b2e465d6 AL	187	if (_error->PendingError() == true)
b2e465d6 AL	188	return false;
f40fdaa4 JAK	189	if (DCache->Init(Progress) == false)
f40fdaa4 JAK	190	return false;
2e5f4e45	191
f40fdaa4 JAK	192	this->DCache = DCache.release();
f40fdaa4 JAK	193	return true;
2e5f4e45 DK	194	}
	195	/}}}/
	196	// CacheFile::Open - Open the cache files, creating if necessary /{{{/
	197	// ---------------------------------------------------------------------
	198	/* */
	199	bool pkgCacheFile::Open(OpProgress *Progress, bool WithLock)
	200	{
	201	if (BuildCaches(Progress,WithLock) == false)
	202	return false;
	203
	204	if (BuildPolicy(Progress) == false)
	205	return false;
	206
	207	if (BuildDepCache(Progress) == false)
	208	return false;
	209
	210	if (Progress != NULL)
	211	Progress->Done();
2d11135a AL	212	if (_error->PendingError() == true)
2d11135a AL	213	return false;
2d11135a AL	214
	215	return true;
	216	}
	217	/}}}/
a249b3e6 DK	218	bool pkgCacheFile::AddIndexFile(pkgIndexFile * const File) /{{{/
	219	{
	220	if (SrcList == NULL)
	221	if (BuildSourceList() == false)
	222	return false;
	223	SrcList->AddVolatileFile(File);
	224
	225	if (Cache == nullptr \|\| File->HasPackages() == false \|\| File->Exists() == false)
	226	return true;
	227
	228	if (File->FindInCache(*Cache).end() == false)
	229	return _error->Warning("Duplicate sources.list entry %s",
	230	File->Describe().c_str());
	231
	232	if (ExternOwner == false)
	233	{
	234	delete DCache;
	235	delete Cache;
	236	}
	237	delete Policy;
	238	DCache = NULL;
	239	Policy = NULL;
	240	Cache = NULL;
	241
	242	if (ExternOwner == false)
	243	{
	244	// a dynamic mmap means that we have build at least parts of the cache
	245	// in memory – which we might or might not have written to disk.
	246	// Throwing away would therefore be a very costly operation we want to avoid
	247	DynamicMMap * dynmmap = dynamic_cast<DynamicMMap*>(Map);
	248	if (dynmmap != nullptr)
	249	{
	250	{
	251	pkgCacheGenerator Gen(dynmmap, nullptr);
a133f79c	252	if (Gen.Start() == false \|\| File->Merge(Gen, nullptr) == false)
a249b3e6 DK	253	return false;
	254	}
	255	Cache = new pkgCache(Map);
f40fdaa4 JAK	256	if (_error->PendingError() == true) {
	257	delete Cache;
	258	Cache = nullptr;
	259	return false;
	260	}
	261	return true;
a249b3e6 DK	262	}
	263	else
	264	{
	265	delete Map;
	266	Map = NULL;
	267	}
	268	}
	269	else
	270	{
	271	ExternOwner = false;
	272	Map = NULL;
	273	}
b6f1b480	274	_system->UnLock(true);
a249b3e6 DK	275	return true;
	276	}
	277	/}}}/
8de79b68 DK	278	// CacheFile::RemoveCaches - remove all cache files from disk /{{{/
	279	// ---------------------------------------------------------------------
	280	/* */
	281	void pkgCacheFile::RemoveCaches()
	282	{
	283	std::string const pkgcache = _config->FindFile("Dir::cache::pkgcache");
	284	std::string const srcpkgcache = _config->FindFile("Dir::cache::srcpkgcache");
	285
	286	if (pkgcache.empty() == false && RealFileExists(pkgcache) == true)
ce1f3a2c	287	RemoveFile("RemoveCaches", pkgcache);
8de79b68	288	if (srcpkgcache.empty() == false && RealFileExists(srcpkgcache) == true)
ce1f3a2c	289	RemoveFile("RemoveCaches", srcpkgcache);
fbb2c7e0 DK	290	if (pkgcache.empty() == false)
	291	{
	292	std::string cachedir = flNotFile(pkgcache);
	293	std::string cachefile = flNotDir(pkgcache);
c0d58f42	294	if (cachedir.empty() != true && cachefile.empty() != true && DirectoryExists(cachedir) == true)
fbb2c7e0 DK	295	{
	296	cachefile.append(".");
	297	std::vector<std::string> caches = GetListOfFilesInDir(cachedir, false);
	298	for (std::vector<std::string>::const_iterator file = caches.begin(); file != caches.end(); ++file)
	299	{
	300	std::string nuke = flNotDir(*file);
	301	if (strncmp(cachefile.c_str(), nuke.c_str(), cachefile.length()) != 0)
	302	continue;
ce1f3a2c	303	RemoveFile("RemoveCaches", *file);
fbb2c7e0 DK	304	}
	305	}
	306	}
	307
	308	if (srcpkgcache.empty() == true)
	309	return;
	310
	311	std::string cachedir = flNotFile(srcpkgcache);
	312	std::string cachefile = flNotDir(srcpkgcache);
c0d58f42	313	if (cachedir.empty() == true \|\| cachefile.empty() == true \|\| DirectoryExists(cachedir) == false)
fbb2c7e0 DK	314	return;
	315	cachefile.append(".");
	316	std::vector<std::string> caches = GetListOfFilesInDir(cachedir, false);
	317	for (std::vector<std::string>::const_iterator file = caches.begin(); file != caches.end(); ++file)
	318	{
	319	std::string nuke = flNotDir(*file);
	320	if (strncmp(cachefile.c_str(), nuke.c_str(), cachefile.length()) != 0)
	321	continue;
ce1f3a2c	322	RemoveFile("RemoveCaches", *file);
fbb2c7e0	323	}
8de79b68 DK	324	}
8de79b68 DK	325	/}}}/
b2e465d6 AL	326	// CacheFile::Close - close the cache files /{{{/
	327	// ---------------------------------------------------------------------
	328	/* */
	329	void pkgCacheFile::Close()
	330	{
9112f777 DK	331	if (ExternOwner == false)
	332	{
	333	delete DCache;
	334	delete Cache;
	335	delete Map;
	336	}
	337	else
	338	ExternOwner = false;
b2e465d6	339	delete Policy;
3f8621c5	340	delete SrcList;
b2e465d6 AL	341	_system->UnLock(true);
b2e465d6 AL	342
3f8621c5 DK	343	Map = NULL;
	344	DCache = NULL;
	345	Policy = NULL;
	346	Cache = NULL;
	347	SrcList = NULL;
b2e465d6 AL	348	}
b2e465d6 AL	349	/}}}/