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// -*- 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 <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/acquire-item.h>
#include <apt-pkg/fileutl.h>
#include <apti18n.h>
/*}}}*/
// CacheFile::CacheFile - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
pkgCacheFile::pkgCacheFile() : Map(0), Cache(0), DCache(0), Policy(0)
{
}
/*}}}*/
// CacheFile::~CacheFile - Destructor /*{{{*/
// ---------------------------------------------------------------------
/* */
pkgCacheFile::~pkgCacheFile()
{
delete DCache;
delete Policy;
delete Cache;
delete Map;
_system->UnLock(true);
}
/*}}}*/
// CacheFile::BuildCaches - Open and build the cache files /*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgCacheFile::BuildCaches(OpProgress &Progress,bool WithLock)
{
if (WithLock == true)
if (_system->Lock() == false)
return false;
if (_config->FindB("Debug::NoLocking",false) == true)
WithLock = false;
if (_error->PendingError() == true)
return false;
// Read the source list
pkgSourceList List;
if (List.ReadMainList() == false)
return _error->Error(_("The list of sources could not be read."));
// Read the caches
bool Res = pkgMakeStatusCache(List,Progress,&Map,!WithLock);
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->empty() == false)
_error->Warning(_("You may want to run apt-get update to correct these problems"));
Cache = new pkgCache(Map);
if (_error->PendingError() == true)
return false;
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;
// The policy engine
Policy = new pkgPolicy(Cache);
if (_error->PendingError() == true)
return false;
if (ReadPinFile(*Policy) == false)
return false;
// Create the dependency cache
DCache = new pkgDepCache(Cache,Policy);
if (_error->PendingError() == true)
return false;
DCache->Init(&Progress);
Progress.Done();
if (_error->PendingError() == true)
return false;
return true;
}
/*}}}*/
// CacheFile::ListUpdate - update the cache files /*{{{*/
// ---------------------------------------------------------------------
/* This is a simple wrapper to update the cache. it will fetch stuff
* from the network (or any other sources defined in sources.list)
*/
bool pkgCacheFile::ListUpdate(pkgAcquireStatus &Stat,
pkgSourceList &List,
int PulseInterval)
{
pkgAcquire::RunResult res;
pkgAcquire Fetcher(&Stat);
// Populate it with the source selection
if (List.GetIndexes(&Fetcher) == false)
return false;
// Run scripts
RunScripts("APT::Update::Pre-Invoke");
// check arguments
if(PulseInterval>0)
res = Fetcher.Run(PulseInterval);
else
res = Fetcher.Run();
if (res == pkgAcquire::Failed)
return false;
bool Failed = false;
bool TransientNetworkFailure = false;
for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin();
I != Fetcher.ItemsEnd(); I++)
{
if ((*I)->Status == pkgAcquire::Item::StatDone)
continue;
(*I)->Finished();
fprintf(stderr,_("Failed to fetch %s %s\n"),(*I)->DescURI().c_str(),
(*I)->ErrorText.c_str());
if ((*I)->Status == pkgAcquire::Item::StatTransientNetworkError)
{
TransientNetworkFailure = true;
continue;
}
Failed = true;
}
// Clean out any old list files
// Keep "APT::Get::List-Cleanup" name for compatibility, but
// this is really a global option for the APT library now
if (!TransientNetworkFailure && !Failed &&
(_config->FindB("APT::Get::List-Cleanup",true) == true ||
_config->FindB("APT::List-Cleanup",true) == true))
{
if (Fetcher.Clean(_config->FindDir("Dir::State::lists")) == false ||
Fetcher.Clean(_config->FindDir("Dir::State::lists") + "partial/") == false)
// something went wrong with the clean
return false;
}
if (TransientNetworkFailure == true)
_error->Warning(_("Some index files failed to download, they have been ignored, or old ones used instead."));
else if (Failed == true)
return _error->Error(_("Some index files failed to download, they have been ignored, or old ones used instead."));
// Run the scripts if all was fine
RunScripts("APT::Update::Post-Invoke");
return true;
}
/*}}}*/
// CacheFile::Close - close the cache files /*{{{*/
// ---------------------------------------------------------------------
/* */
void pkgCacheFile::Close()
{
delete DCache;
delete Policy;
delete Cache;
delete Map;
_system->UnLock(true);
Map = 0;
DCache = 0;
Policy = 0;
Cache = 0;
}
/*}}}*/