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 #include <vector>
  15
  16 #include <apti18n.h>
  17                                                                         /*}}}*/
  18
  19 using namespace std;
  20
  21 // ListUpdate - construct Fetcher and update the cache files            /*{{{*/
  22 // ---------------------------------------------------------------------
  23 /* This is a simple wrapper to update the cache. it will fetch stuff
  24  * from the network (or any other sources defined in sources.list)
  25  */
  26 bool ListUpdate(pkgAcquireStatus &Stat,
  27                 pkgSourceList &List,
  28                 int PulseInterval)
  29 {
  30    pkgAcquire Fetcher(&Stat);
  31    if (Fetcher.GetLock(_config->FindDir("Dir::State::Lists")) == false)
  32       return false;
  33
  34    // Populate it with the source selection
  35    if (List.GetIndexes(&Fetcher) == false)
  36          return false;
  37
  38    return AcquireUpdate(Fetcher, PulseInterval, true);
  39 }
  40                                                                         /*}}}*/
  41 // AcquireUpdate - take Fetcher and update the cache files              /*{{{*/
  42 // ---------------------------------------------------------------------
  43 /* This is a simple wrapper to update the cache with a provided acquire
  44  * If you only need control over Status and the used SourcesList use
  45  * ListUpdate method instead.
  46  */
  47 bool AcquireUpdate(pkgAcquire &Fetcher, int const PulseInterval,
  48                    bool const RunUpdateScripts, bool const ListCleanup)
  49 {
  50    // Run scripts
  51    if (RunUpdateScripts == true)
  52       RunScripts("APT::Update::Pre-Invoke");
  53
  54    pkgAcquire::RunResult res;
  55    if(PulseInterval > 0)
  56       res = Fetcher.Run(PulseInterval);
  57    else
  58       res = Fetcher.Run();
  59
  60    if (res == pkgAcquire::Failed)
  61       return false;
  62
  63    bool Failed = false;
  64    bool TransientNetworkFailure = false;
  65    for (pkgAcquire::ItemIterator I = Fetcher.ItemsBegin();
  66         I != Fetcher.ItemsEnd(); ++I)
  67    {
  68       if ((*I)->Status == pkgAcquire::Item::StatDone)
  69          continue;
  70
  71       (*I)->Finished();
  72
  73       ::URI uri((*I)->DescURI());
  74       uri.User.clear();
  75       uri.Password.clear();
  76       string descUri = string(uri);
  77       _error->Warning(_("Failed to fetch %s  %s\n"), descUri.c_str(),
  78               (*I)->ErrorText.c_str());
  79
  80       if ((*I)->Status == pkgAcquire::Item::StatTransientNetworkError)
  81       {
  82          TransientNetworkFailure = true;
  83          continue;
  84       }
  85
  86       Failed = true;
  87    }
  88
  89    // Clean out any old list files
  90    // Keep "APT::Get::List-Cleanup" name for compatibility, but
  91    // this is really a global option for the APT library now
  92    if (!TransientNetworkFailure && !Failed && ListCleanup == true &&
  93        (_config->FindB("APT::Get::List-Cleanup",true) == true &&
  94         _config->FindB("APT::List-Cleanup",true) == true))
  95    {
  96       if (Fetcher.Clean(_config->FindDir("Dir::State::lists")) == false ||
  97           Fetcher.Clean(_config->FindDir("Dir::State::lists") + "partial/") == false)
  98          // something went wrong with the clean
  99          return false;
 100    }
 101
 102    if (TransientNetworkFailure == true)
 103       _error->Warning(_("Some index files failed to download. They have been ignored, or old ones used instead."));
 104    else if (Failed == true)
 105       return _error->Error(_("Some index files failed to download. They have been ignored, or old ones used instead."));
 106
 107
 108    // Run the success scripts if all was fine
 109    if (RunUpdateScripts == true)
 110    {
 111       if(!TransientNetworkFailure && !Failed)
 112          RunScripts("APT::Update::Post-Invoke-Success");
 113
 114       // Run the other scripts
 115       RunScripts("APT::Update::Post-Invoke");
 116    }
 117    return true;
 118 }
 119                                                                         /*}}}*/