#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 <apt-pkg/progress.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/mmap.h>
+#include <apt-pkg/pkgcache.h>
+
+#include <string.h>
+#include <unistd.h>
+#include <string>
+#include <vector>
#include <apti18n.h>
/*}}}*/
// CacheFile::CacheFile - Constructor /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-pkgCacheFile::pkgCacheFile() : Map(NULL), Cache(NULL), DCache(NULL),
- SrcList(NULL), Policy(NULL)
+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)
{
}
/*}}}*/
/* */
pkgCacheFile::~pkgCacheFile()
{
- delete DCache;
+ if (ExternOwner == false)
+ {
+ delete DCache;
+ delete Cache;
+ delete Map;
+ }
delete Policy;
delete SrcList;
- delete Cache;
- delete Map;
- _system->UnLock(true);
+ 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)
{
if (Cache != NULL)
return true;
+ ScopedErrorMerge sem;
if (_config->FindB("pkgCacheFile::Generate", true) == false)
{
- Map = new MMap(*new FileFd(_config->FindFile("Dir::Cache::pkgcache"),
- FileFd::ReadOnly),MMap::Public|MMap::ReadOnly);
+ FileFd file(_config->FindFile("Dir::Cache::pkgcache"), FileFd::ReadOnly);
+ if (file.IsOpen() == false || file.Failed())
+ return false;
+ Map = new MMap(file, MMap::Public|MMap::ReadOnly);
+ if (unlikely(Map->validData() == false))
+ return false;
Cache = new pkgCache(Map);
- if (_error->PendingError() == true)
- return false;
- return true;
+ return _error->PendingError() == false;
}
- const bool ErrorWasEmpty = _error->empty();
if (WithLock == true)
if (_system->Lock() == false)
return false;
-
- if (_config->FindB("Debug::NoLocking",false) == true)
- WithLock = false;
-
+
if (_error->PendingError() == true)
return false;
BuildSourceList(Progress);
// Read the caches
- bool Res = pkgCacheGenerator::MakeStatusCache(*SrcList,Progress,&Map,!WithLock);
+ Cache = nullptr;
+ bool Res = pkgCacheGenerator::MakeStatusCache(*SrcList,Progress,&Map, &Cache, true);
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 (ErrorWasEmpty == true && _error->empty() == false)
+ if (_error->PendingError() == true)
_error->Warning(_("You may want to run apt-get update to correct these problems"));
- Cache = new pkgCache(Map);
+ if (Cache == nullptr)
+ Cache = new pkgCache(Map);
if (_error->PendingError() == true)
return false;
return true;
// CacheFile::BuildSourceList - Open and build all relevant sources.list/*{{{*/
// ---------------------------------------------------------------------
/* */
-bool pkgCacheFile::BuildSourceList(OpProgress *Progress)
+bool pkgCacheFile::BuildSourceList(OpProgress * /*Progress*/)
{
if (SrcList != NULL)
return true;
// CacheFile::BuildPolicy - Open and build all relevant preferences /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool pkgCacheFile::BuildPolicy(OpProgress *Progress)
+bool pkgCacheFile::BuildPolicy(OpProgress * /*Progress*/)
{
if (Policy != NULL)
return true;
if (DCache != NULL)
return true;
+ if (BuildPolicy(Progress) == false)
+ return false;
+
DCache = new pkgDepCache(Cache,Policy);
if (_error->PendingError() == true)
return false;
- DCache->Init(Progress);
- return true;
+ return DCache->Init(Progress);
}
/*}}}*/
// CacheFile::Open - Open the cache files, creating if necessary /*{{{*/
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()
{
- delete DCache;
+ if (ExternOwner == false)
+ {
+ delete DCache;
+ delete Cache;
+ delete Map;
+ }
+ else
+ ExternOwner = false;
delete Policy;
- delete Cache;
delete SrcList;
- delete Map;
_system->UnLock(true);
Map = NULL;
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