// -*- 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 /*{{{*/ #ifdef __GNUG__ #pragma implementation "apt-pkg/cachefile.h" #endif #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 <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::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; } /*}}}*/