apt-pkg/update.cc

   1 // Include Files                                                        /*{{{*/
   2 #include <config.h>
   3
   4 #include <apt-pkg/acquire-item.h>
   5 #include <apt-pkg/configuration.h>
   6 #include <apt-pkg/error.h>
   7 #include <apt-pkg/fileutl.h>
   8 #include <apt-pkg/sourcelist.h>
   9 #include <apt-pkg/acquire.h>
  10 #include <apt-pkg/strutl.h>
  11 #include <apt-pkg/update.h>
  12
  13 #include <string>
  14
  15 #include <apti18n.h>
  16                                                                         /*}}}*/
  17
  18 using namespace std;
  19
  20 // ListUpdate - construct Fetcher and update the cache files            /*{{{*/
  21 // ---------------------------------------------------------------------
  22 /* This is a simple wrapper to update the cache. it will fetch stuff
  23  * from the network (or any other sources defined in sources.list)
  24  */
  25 bool ListUpdate(pkgAcquireStatus &Stat,
  26                 pkgSourceList &List,
  27                 int PulseInterval)
  28 {
  29    pkgAcquire Fetcher(&Stat);
  30    if (Fetcher.GetLock(_config->FindDir("Dir::State::Lists")) == false)
  31       return false;
  32
  33    // Populate it with the source selection
  34    if (List.GetIndexes(&Fetcher) == false)
  35          return false;
  36
  37    return AcquireUpdate(Fetcher, PulseInterval, true);
  38 }
  39                                                                         /*}}}*/
  40 // AcquireUpdate - take Fetcher and update the cache files              /*{{{*/
  41 // ---------------------------------------------------------------------
  42 /* This is a simple wrapper to update the cache with a provided acquire
  43  * If you only need control over Status and the used SourcesList use
  44  * ListUpdate method instead.
  45  */
  46 bool AcquireUpdate(pkgAcquire &Fetcher, int const PulseInterval,
  47                    bool const RunUpdateScripts, bool const ListCleanup)
  48 {
  49    // Run scripts
  50    if (RunUpdateScripts == true)
  51       RunScripts("APT::Update::Pre-Invoke");
  52
  53    pkgAcquire::RunResult res;
  54    if(PulseInterval > 0)
  55       res = Fetcher.Run(PulseInterval);
  56    else
  57       res = Fetcher.Run();
  58
  59    if (res == pkgAcquire::Failed)
  60       return false;
  61
  62    bool Failed = false;
  63    bool TransientNetworkFailure = false;
  64    for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin();
  65         I != Fetcher.ItemsEnd(); ++I)
  66    {
  67       if ((*I)->Status == pkgAcquire::Item::StatDone)
  68          continue;
  69
  70       (*I)->Finished();
  71
  72       ::URI uri((*I)->DescURI());
  73       uri.User.clear();
  74       uri.Password.clear();
  75       string descUri = string(uri);
  76       _error->Warning(_("Failed to fetch %s  %s"), descUri.c_str(),
  77               (*I)->ErrorText.c_str());
  78
  79       if ((*I)->Status == pkgAcquire::Item::StatTransientNetworkError)
  80       {
  81          TransientNetworkFailure = true;
  82          continue;
  83       }
  84
  85       Failed = true;
  86    }
  87
  88    // Clean out any old list files
  89    // Keep "APT::Get::List-Cleanup" name for compatibility, but
  90    // this is really a global option for the APT library now
  91    if (!TransientNetworkFailure && !Failed && ListCleanup == true &&
  92        (_config->FindB("APT::Get::List-Cleanup",true) == true &&
  93         _config->FindB("APT::List-Cleanup",true) == true))
  94    {
  95       if (Fetcher.Clean(_config->FindDir("Dir::State::lists")) == false ||
  96           Fetcher.Clean(_config->FindDir("Dir::State::lists") + "partial/") == false)
  97          // something went wrong with the clean
  98          return false;
  99    }
 100
 101    if (TransientNetworkFailure == true)
 102       _error->Warning(_("Some index files failed to download. They have been ignored, or old ones used instead."));
 103    else if (Failed == true)
 104       return _error->Error(_("Some index files failed to download. They have been ignored, or old ones used instead."));
 105
 106
 107    // Run the success scripts if all was fine
 108    if (RunUpdateScripts == true)
 109    {
 110       if(!TransientNetworkFailure && !Failed)
 111          RunScripts("APT::Update::Post-Invoke-Success");
 112
 113       // Run the other scripts
 114       RunScripts("APT::Update::Post-Invoke");
 115    }
 116    return true;
 117 }
 118                                                                         /*}}}*/