zypp/RepoManager.cc

   1 /*---------------------------------------------------------------------\
   2 |                          ____ _   __ __ ___                          |
   3 |                         |__  / \ / / . \ . \                         |
   4 |                           / / \ V /|  _/  _/                         |
   5 |                          / /__ | | | | | |                           |
   6 |                         /_____||_| |_| |_|                           |
   7 |                                                                      |
   8 \---------------------------------------------------------------------*/
   9 /** \file       zypp/RepoManager.cc
  10  *
  11 */
  12
  13 #include <iostream>
  14 #include <fstream>
  15 #include <list>
  16 #include <algorithm>
  17 #include "zypp/base/InputStream.h"
  18 #include "zypp/base/Logger.h"
  19 #include "zypp/base/Gettext.h"
  20 #include "zypp/base/Function.h"
  21 #include "zypp/PathInfo.h"
  22 #include "zypp/TmpPath.h"
  23
  24 #include "zypp/repo/RepoException.h"
  25 #include "zypp/RepoManager.h"
  26
  27 #include "zypp/cache/CacheStore.h"
  28 #include "zypp/repo/cached/RepoImpl.h"
  29 #include "zypp/media/MediaManager.h"
  30 #include "zypp/MediaSetAccess.h"
  31
  32 #include "zypp/parser/RepoFileReader.h"
  33 #include "zypp/repo/yum/Downloader.h"
  34 #include "zypp/parser/yum/RepoParser.h"
  35 #include "zypp/parser/plaindir/RepoParser.h"
  36 #include "zypp/repo/susetags/Downloader.h"
  37 #include "zypp/parser/susetags/RepoParser.h"
  38
  39 #include "zypp/ZYppCallbacks.h"
  40
  41 using namespace std;
  42 using namespace zypp;
  43 using namespace zypp::repo;
  44 using namespace zypp::filesystem;
  45
  46 using namespace zypp::repo;
  47
  48 ///////////////////////////////////////////////////////////////////
  49 namespace zypp
  50 { /////////////////////////////////////////////////////////////////
  51
  52   ///////////////////////////////////////////////////////////////////
  53   //
  54   //    CLASS NAME : RepoManagerOptions
  55   //
  56   ///////////////////////////////////////////////////////////////////
  57
  58   RepoManagerOptions::RepoManagerOptions()
  59   {
  60     repoCachePath    = ZConfig::instance().repoCachePath();
  61     repoRawCachePath = ZConfig::instance().repoMetadataPath();
  62     knownReposPath   = ZConfig::instance().knownReposPath();
  63   }
  64
  65   ////////////////////////////////////////////////////////////////////////////
  66
  67   /**
  68     * \short Simple callback to collect the results
  69     *
  70     * Classes like RepoFileParser call the callback
  71     * once per each repo in a file.
  72     *
  73     * Passing this functor as callback, you can collect
  74     * all resuls at the end, without dealing with async
  75     * code.
  76     */
  77     struct RepoCollector
  78     {
  79       RepoCollector()
  80       {
  81         MIL << endl;
  82       }
  83
  84       ~RepoCollector()
  85       {
  86         MIL << endl;
  87       }
  88
  89       bool collect( const RepoInfo &repo )
  90       {
  91         //MIL << "here in collector: " << repo.alias() << endl;
  92         repos.push_back(repo);
  93         //MIL << "added: " << repo.alias() << endl;
  94         return true;
  95       }
  96
  97       RepoInfoList repos;
  98     };
  99
 100   ////////////////////////////////////////////////////////////////////////////
 101
 102    /**
 103     * \short Internal version of clean cache
 104     *
 105     * Takes an extra CacheStore reference, so we avoid internally
 106     * having 2 CacheStores writing to the same database.
 107     */
 108   static void cleanCacheInternal( cache::CacheStore &store,
 109                                   const RepoInfo &info,
 110                                   const ProgressData::ReceiverFnc & progressrcv = ProgressData::ReceiverFnc() )
 111   {
 112     ProgressData progress;
 113     callback::SendReport<ProgressReport> report;
 114     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
 115     progress.name(str::form(_("Cleaning repository '%s' cache"), info.name().c_str()));
 116
 117     if ( !store.isCached(info.alias()) )
 118       return;
 119
 120     MIL << info.alias() << " cleaning cache..." << endl;
 121     data::RecordId id = store.lookupRepository(info.alias());
 122
 123     CombinedProgressData subprogrcv(progress);
 124
 125     store.cleanRepository(id, subprogrcv);
 126   }
 127
 128   ////////////////////////////////////////////////////////////////////////////
 129
 130   /**
 131    * Reads RepoInfo's from a repo file.
 132    *
 133    * \param file pathname of the file to read.
 134    */
 135   static std::list<RepoInfo> repositories_in_file( const Pathname & file )
 136   {
 137     MIL << "repo file: " << file << endl;
 138     RepoCollector collector;
 139     parser::RepoFileReader parser( file, bind( &RepoCollector::collect, &collector, _1 ) );
 140     return collector.repos;
 141   }
 142
 143   ////////////////////////////////////////////////////////////////////////////
 144
 145   std::list<RepoInfo> readRepoFile(const Url & repo_file)
 146    {
 147      // no interface to download a specific file, using workaround:
 148      //! \todo add MediaManager::provideFile(Url file_url) to easily access any file URLs? (no need for media access id or media_nr)
 149      Url url(repo_file);
 150      Pathname path(url.getPathName());
 151      url.setPathName ("/");
 152      MediaSetAccess access(url);
 153      Pathname local = access.provideFile(path);
 154
 155      DBG << "reading repo file " << repo_file << ", local path: " << local << endl;
 156
 157      return repositories_in_file(local);
 158    }
 159
 160   ////////////////////////////////////////////////////////////////////////////
 161
 162   /**
 163    * \short List of RepoInfo's from a directory
 164    *
 165    * Goes trough every file in a directory and adds all
 166    * RepoInfo's contained in that file.
 167    *
 168    * \param dir pathname of the directory to read.
 169    */
 170   static std::list<RepoInfo> repositories_in_dir( const Pathname &dir )
 171   {
 172     MIL << "directory " << dir << endl;
 173     list<RepoInfo> repos;
 174     list<Pathname> entries;
 175     if ( filesystem::readdir( entries, Pathname(dir), false ) != 0 )
 176       ZYPP_THROW(Exception("failed to read directory"));
 177
 178     for ( list<Pathname>::const_iterator it = entries.begin(); it != entries.end(); ++it )
 179     {
 180       list<RepoInfo> tmp = repositories_in_file( *it );
 181       repos.insert( repos.end(), tmp.begin(), tmp.end() );
 182
 183       //std::copy( collector.repos.begin(), collector.repos.end(), std::back_inserter(repos));
 184       //MIL << "ok" << endl;
 185     }
 186     return repos;
 187   }
 188
 189   ////////////////////////////////////////////////////////////////////////////
 190
 191   static void assert_alias( const RepoInfo &info )
 192   {
 193     if (info.alias().empty())
 194         ZYPP_THROW(RepoNoAliasException());
 195   }
 196
 197   ////////////////////////////////////////////////////////////////////////////
 198
 199   static void assert_urls( const RepoInfo &info )
 200   {
 201     if (info.baseUrlsEmpty())
 202         ZYPP_THROW(RepoNoUrlException());
 203   }
 204
 205   ////////////////////////////////////////////////////////////////////////////
 206
 207   /**
 208    * \short Calculates the raw cache path for a repository
 209    */
 210   static Pathname rawcache_path_for_repoinfo( const RepoManagerOptions &opt, const RepoInfo &info )
 211   {
 212     assert_alias(info);
 213     return opt.repoRawCachePath + info.alias();
 214   }
 215
 216   ///////////////////////////////////////////////////////////////////
 217   //
 218   //    CLASS NAME : RepoManager::Impl
 219   //
 220   ///////////////////////////////////////////////////////////////////
 221
 222   /**
 223    * \short RepoManager implementation.
 224    */
 225   struct RepoManager::Impl
 226   {
 227     Impl( const RepoManagerOptions &opt )
 228       : options(opt)
 229     {
 230
 231     }
 232
 233     Impl()
 234     {
 235
 236     }
 237
 238     RepoManagerOptions options;
 239
 240   public:
 241     /** Offer default Impl. */
 242     static shared_ptr<Impl> nullimpl()
 243     {
 244       static shared_ptr<Impl> _nullimpl( new Impl );
 245       return _nullimpl;
 246     }
 247
 248   private:
 249     friend Impl * rwcowClone<Impl>( const Impl * rhs );
 250     /** clone for RWCOW_pointer */
 251     Impl * clone() const
 252     { return new Impl( *this ); }
 253   };
 254   ///////////////////////////////////////////////////////////////////
 255
 256   /** \relates RepoManager::Impl Stream output */
 257   inline std::ostream & operator<<( std::ostream & str, const RepoManager::Impl & obj )
 258   {
 259     return str << "RepoManager::Impl";
 260   }
 261
 262   ///////////////////////////////////////////////////////////////////
 263   //
 264   //    CLASS NAME : RepoManager
 265   //
 266   ///////////////////////////////////////////////////////////////////
 267
 268   RepoManager::RepoManager( const RepoManagerOptions &opt )
 269   : _pimpl( new Impl(opt) )
 270   {}
 271
 272   ////////////////////////////////////////////////////////////////////////////
 273
 274   RepoManager::~RepoManager()
 275   {}
 276
 277   ////////////////////////////////////////////////////////////////////////////
 278
 279   std::list<RepoInfo> RepoManager::knownRepositories() const
 280   {
 281     MIL << endl;
 282
 283     if ( PathInfo(_pimpl->options.knownReposPath).isExist() )
 284     {
 285       RepoInfoList repos = repositories_in_dir(_pimpl->options.knownReposPath);
 286       for ( RepoInfoList::iterator it = repos.begin();
 287             it != repos.end();
 288             ++it )
 289       {
 290         // set the metadata path for the repo
 291         Pathname metadata_path = rawcache_path_for_repoinfo(_pimpl->options, (*it));
 292         (*it).setMetadataPath(metadata_path);
 293       }
 294       return repos;
 295     }
 296     else
 297       return std::list<RepoInfo>();
 298
 299     MIL << endl;
 300   }
 301
 302   ////////////////////////////////////////////////////////////////////////////
 303
 304   RepoStatus RepoManager::metadataStatus( const RepoInfo &info ) const
 305   {
 306     Pathname rawpath = rawcache_path_for_repoinfo( _pimpl->options, info );
 307     RepoType repokind = info.type();
 308     RepoStatus status;
 309
 310     switch ( repokind.toEnum() )
 311     {
 312       case RepoType::NONE_e:
 313       // unknown, probe the local metadata
 314         repokind = probe(rawpath.asUrl());
 315       break;
 316       default:
 317       break;
 318     }
 319
 320     switch ( repokind.toEnum() )
 321     {
 322       case RepoType::RPMMD_e :
 323       {
 324         status = RepoStatus( rawpath + "/repodata/repomd.xml");
 325       }
 326       break;
 327
 328       case RepoType::YAST2_e :
 329       {
 330         status = RepoStatus( rawpath + "/content");
 331       }
 332       break;
 333
 334       case RepoType::RPMPLAINDIR_e :
 335       {
 336         if ( PathInfo(Pathname(rawpath + "/cookie")).isExist() )
 337           status = RepoStatus( rawpath + "/cookie");
 338       }
 339       break;
 340
 341       case RepoType::NONE_e :
 342         // Return default RepoStatus in case of RepoType::NONE
 343         // indicating it should be created?
 344         // ZYPP_THROW(RepoUnknownTypeException());
 345         break;
 346     }
 347     return status;
 348   }
 349
 350   bool RepoManager::checkIfToRefreshMetadata( const RepoInfo &info,
 351                                               const Url &url,
 352                                               RawMetadataRefreshPolicy policy )
 353   {
 354     assert_alias(info);
 355
 356     RepoStatus oldstatus;
 357     RepoStatus newstatus;
 358
 359     try
 360     {
 361       MIL << "Going to try to check whether refresh is needed for " << url << endl;
 362
 363       repo::RepoType repokind = info.type();
 364
 365       // if the type is unknown, try probing.
 366       switch ( repokind.toEnum() )
 367       {
 368         case RepoType::NONE_e:
 369           // unknown, probe it
 370           repokind = probe(url);
 371         break;
 372         default:
 373         break;
 374       }
 375
 376       Pathname rawpath = rawcache_path_for_repoinfo( _pimpl->options, info );
 377       filesystem::assert_dir(rawpath);
 378       oldstatus = metadataStatus(info);
 379
 380       // now we've got the old (cached) status, we can decide repo.refresh.delay
 381       if (policy != RefreshForced)
 382       {
 383         // difference in seconds
 384         double diff = difftime(
 385           (Date::ValueType)Date::now(),
 386           (Date::ValueType)oldstatus.timestamp()) / 60;
 387
 388         DBG << "oldstatus: " << (Date::ValueType)oldstatus.timestamp() << endl;
 389         DBG << "current time: " << (Date::ValueType)Date::now() << endl;
 390         DBG << "last refresh = " << diff << " minutes ago" << endl;
 391
 392         if (diff < ZConfig::instance().repo_refresh_delay())
 393         {
 394           MIL << "Repository '" << info.alias()
 395               << "' has been refreshed less than repo.refresh.delay ("
 396               << ZConfig::instance().repo_refresh_delay()
 397               << ") minutes ago. Advising to skip refresh" << endl;
 398           return false;
 399         }
 400       }
 401
 402       // create temp dir as sibling of rawpath
 403       filesystem::TmpDir tmpdir( filesystem::TmpDir::makeSibling( rawpath ) );
 404
 405       if ( ( repokind.toEnum() == RepoType::RPMMD_e ) ||
 406            ( repokind.toEnum() == RepoType::YAST2_e ) )
 407       {
 408         MediaSetAccess media(url);
 409         shared_ptr<repo::Downloader> downloader_ptr;
 410
 411         if ( repokind.toEnum() == RepoType::RPMMD_e )
 412           downloader_ptr.reset(new yum::Downloader(info.path()));
 413         else
 414           downloader_ptr.reset( new susetags::Downloader(info.path()));
 415
 416         RepoStatus newstatus = downloader_ptr->status(media);
 417         bool refresh = false;
 418         if ( oldstatus.checksum() == newstatus.checksum() )
 419         {
 420           MIL << "repo has not changed" << endl;
 421           if ( policy == RefreshForced )
 422           {
 423             MIL << "refresh set to forced" << endl;
 424             refresh = true;
 425           }
 426         }
 427         else
 428         {
 429           MIL << "repo has changed, going to refresh" << endl;
 430           refresh = true;
 431         }
 432
 433         return refresh;
 434       }
 435       else if ( repokind.toEnum() == RepoType::RPMPLAINDIR_e )
 436       {
 437         RepoStatus newstatus = parser::plaindir::dirStatus(url.getPathName());
 438         bool refresh = false;
 439         if ( oldstatus.checksum() == newstatus.checksum() )
 440         {
 441           MIL << "repo has not changed" << endl;
 442           if ( policy == RefreshForced )
 443           {
 444             MIL << "refresh set to forced" << endl;
 445             refresh = true;
 446           }
 447         }
 448         else
 449         {
 450           MIL << "repo has changed, going to refresh" << endl;
 451           refresh = true;
 452         }
 453
 454         return refresh;
 455       }
 456       else
 457       {
 458         ZYPP_THROW(RepoUnknownTypeException());
 459       }
 460     }
 461     catch ( const Exception &e )
 462     {
 463       ZYPP_CAUGHT(e);
 464       ERR << "refresh check failed for " << url << endl;
 465       ZYPP_RETHROW(e);
 466     }
 467
 468     return true; // default
 469   }
 470
 471   void RepoManager::refreshMetadata( const RepoInfo &info,
 472                                      RawMetadataRefreshPolicy policy,
 473                                      const ProgressData::ReceiverFnc & progress )
 474   {
 475     assert_alias(info);
 476     assert_urls(info);
 477
 478     // try urls one by one
 479     for ( RepoInfo::urls_const_iterator it = info.baseUrlsBegin(); it != info.baseUrlsEnd(); ++it )
 480     {
 481       try
 482       {
 483         Url url(*it);
 484
 485         // check whether to refresh metadata
 486         // if the check fails for this url, it throws, so another url will be checked
 487         if (!checkIfToRefreshMetadata(info, url, policy))
 488           return;
 489
 490         MIL << "Going to refresh metadata from " << url << endl;
 491
 492         repo::RepoType repokind = info.type();
 493
 494         // if the type is unknown, try probing.
 495         switch ( repokind.toEnum() )
 496         {
 497           case RepoType::NONE_e:
 498             // unknown, probe it
 499             repokind = probe(*it);
 500           break;
 501           default:
 502           break;
 503         }
 504
 505         Pathname rawpath = rawcache_path_for_repoinfo( _pimpl->options, info );
 506         filesystem::assert_dir(rawpath);
 507
 508         // create temp dir as sibling of rawpath
 509         filesystem::TmpDir tmpdir( filesystem::TmpDir::makeSibling( rawpath ) );
 510
 511         if ( ( repokind.toEnum() == RepoType::RPMMD_e ) ||
 512              ( repokind.toEnum() == RepoType::YAST2_e ) )
 513         {
 514           MediaSetAccess media(url);
 515           shared_ptr<repo::Downloader> downloader_ptr;
 516
 517           if ( repokind.toEnum() == RepoType::RPMMD_e )
 518             downloader_ptr.reset(new yum::Downloader(info.path()));
 519           else
 520             downloader_ptr.reset( new susetags::Downloader(info.path()));
 521
 522           /**
 523            * Given a downloader, sets the other repos raw metadata
 524            * path as cache paths for the fetcher, so if another
 525            * repo has the same file, it will not download it
 526            * but copy it from the other repository
 527            */
 528           std::list<RepoInfo> repos = knownRepositories();
 529           for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 530                 it != repos.end();
 531                 ++it )
 532           {
 533             downloader_ptr->addCachePath(rawcache_path_for_repoinfo( _pimpl->options, *it ));
 534           }
 535
 536           downloader_ptr->download( media, tmpdir.path());
 537         }
 538         else if ( repokind.toEnum() == RepoType::RPMPLAINDIR_e )
 539         {
 540           RepoStatus newstatus = parser::plaindir::dirStatus(url.getPathName());
 541
 542           std::ofstream file(( tmpdir.path() + "/cookie").c_str());
 543           if (!file) {
 544             ZYPP_THROW (Exception( "Can't open " + tmpdir.path().asString() + "/cookie" ) );
 545           }
 546           file << url << endl;
 547           file << newstatus.checksum() << endl;
 548
 549           file.close();
 550         }
 551         else
 552         {
 553           ZYPP_THROW(RepoUnknownTypeException());
 554         }
 555
 556         // ok we have the metadata, now exchange
 557         // the contents
 558         TmpDir oldmetadata( TmpDir::makeSibling( rawpath ) );
 559         filesystem::rename( rawpath, oldmetadata.path() );
 560         // move the just downloaded there
 561         filesystem::rename( tmpdir.path(), rawpath );
 562         // we are done.
 563         return;
 564       }
 565       catch ( const Exception &e )
 566       {
 567         ZYPP_CAUGHT(e);
 568         ERR << "Trying another url..." << endl;
 569       }
 570     } // for every url
 571     ERR << "No more urls..." << endl;
 572     ZYPP_THROW(RepoException(_("Valid metadata not found at specified URL(s)")));
 573   }
 574
 575   ////////////////////////////////////////////////////////////////////////////
 576
 577   void RepoManager::cleanMetadata( const RepoInfo &info,
 578                                    const ProgressData::ReceiverFnc & progress )
 579   {
 580     filesystem::recursive_rmdir(rawcache_path_for_repoinfo(_pimpl->options, info));
 581   }
 582
 583   void RepoManager::buildCache( const RepoInfo &info,
 584                                 CacheBuildPolicy policy,
 585                                 const ProgressData::ReceiverFnc & progressrcv )
 586   {
 587     assert_alias(info);
 588     Pathname rawpath = rawcache_path_for_repoinfo(_pimpl->options, info);
 589
 590     cache::CacheStore store(_pimpl->options.repoCachePath);
 591
 592     RepoStatus raw_metadata_status = metadataStatus(info);
 593     if ( raw_metadata_status.empty() )
 594     {
 595       ZYPP_THROW(RepoMetadataException(info));
 596     }
 597
 598     bool needs_cleaning = false;
 599     if ( store.isCached( info.alias() ) )
 600     {
 601       MIL << info.alias() << " is already cached." << endl;
 602       data::RecordId id = store.lookupRepository(info.alias());
 603       RepoStatus cache_status = store.repositoryStatus(id);
 604
 605       if ( cache_status.checksum() == raw_metadata_status.checksum() )
 606       {
 607         MIL << info.alias() << " cache is up to date with metadata." << endl;
 608         if ( policy == BuildIfNeeded ) {
 609           return;
 610         }
 611         else {
 612           MIL << info.alias() << " cache rebuild is forced" << endl;
 613         }
 614       }
 615
 616       needs_cleaning = true;
 617     }
 618
 619     ProgressData progress(100);
 620     callback::SendReport<ProgressReport> report;
 621     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
 622     progress.name(str::form(_("Building repository '%s' cache"), info.name().c_str()));
 623     progress.toMin();
 624
 625     if (needs_cleaning)
 626       cleanCacheInternal( store, info);
 627
 628     MIL << info.alias() << " building cache..." << endl;
 629     data::RecordId id = store.lookupOrAppendRepository(info.alias());
 630     // do we have type?
 631     repo::RepoType repokind = info.type();
 632
 633     // if the type is unknown, try probing.
 634     switch ( repokind.toEnum() )
 635     {
 636       case RepoType::NONE_e:
 637         // unknown, probe the local metadata
 638         repokind = probe(rawpath.asUrl());
 639       break;
 640       default:
 641       break;
 642     }
 643
 644
 645     switch ( repokind.toEnum() )
 646     {
 647       case RepoType::RPMMD_e :
 648       {
 649         CombinedProgressData subprogrcv( progress, 100);
 650         parser::yum::RepoParser parser(id, store, parser::yum::RepoParserOpts(), subprogrcv);
 651         parser.parse(rawpath);
 652           // no error
 653       }
 654       break;
 655       case RepoType::YAST2_e :
 656       {
 657         CombinedProgressData subprogrcv( progress, 100);
 658         parser::susetags::RepoParser parser(id, store, subprogrcv);
 659         parser.parse(rawpath);
 660         // no error
 661       }
 662       break;
 663       case RepoType::RPMPLAINDIR_e :
 664       {
 665         CombinedProgressData subprogrcv( progress, 100);
 666         InputStream is(rawpath + "cookie");
 667         string buffer;
 668         getline( is.stream(), buffer);
 669         Url url(buffer);
 670         parser::plaindir::RepoParser parser(id, store, subprogrcv);
 671         parser.parse(url.getPathName());
 672       }
 673       break;
 674       default:
 675         ZYPP_THROW(RepoUnknownTypeException());
 676     }
 677
 678     // update timestamp and checksum
 679     store.updateRepositoryStatus(id, raw_metadata_status);
 680
 681     MIL << "Commit cache.." << endl;
 682     store.commit();
 683     //progress.toMax();
 684   }
 685
 686   ////////////////////////////////////////////////////////////////////////////
 687
 688   repo::RepoType RepoManager::probe( const Url &url ) const
 689   {
 690     if ( url.getScheme() == "dir" && ! PathInfo( url.getPathName() ).isDir() )
 691     {
 692       // Handle non existing local directory in advance, as
 693       // MediaSetAccess does not support it.
 694       return repo::RepoType::NONE;
 695     }
 696
 697     try
 698     {
 699       MediaSetAccess access(url);
 700       if ( access.doesFileExist("/repodata/repomd.xml") )
 701         return repo::RepoType::RPMMD;
 702       if ( access.doesFileExist("/content") )
 703         return repo::RepoType::YAST2;
 704
 705       // if it is a local url of type dir
 706       if ( (! media::MediaManager::downloads(url)) && ( url.getScheme() == "dir" ) )
 707       {
 708         Pathname path = Pathname(url.getPathName());
 709         if ( PathInfo(path).isDir() )
 710         {
 711           // allow empty dirs for now
 712           return repo::RepoType::RPMPLAINDIR;
 713         }
 714       }
 715     }
 716     catch ( const media::MediaException &e )
 717     {
 718       ZYPP_CAUGHT(e);
 719       RepoException enew("Error trying to read from " + url.asString());
 720       enew.remember(e);
 721       ZYPP_THROW(enew);
 722     }
 723     catch ( const Exception &e )
 724     {
 725       ZYPP_CAUGHT(e);
 726       Exception enew("Unknown error reading from " + url.asString());
 727       enew.remember(e);
 728       ZYPP_THROW(enew);
 729     }
 730
 731     return repo::RepoType::NONE;
 732   }
 733
 734   ////////////////////////////////////////////////////////////////////////////
 735
 736   void RepoManager::cleanCache( const RepoInfo &info,
 737                                 const ProgressData::ReceiverFnc & progressrcv )
 738   {
 739     cache::CacheStore store(_pimpl->options.repoCachePath);
 740     cleanCacheInternal( store, info, progressrcv );
 741     store.commit();
 742   }
 743
 744   ////////////////////////////////////////////////////////////////////////////
 745
 746   bool RepoManager::isCached( const RepoInfo &info ) const
 747   {
 748     cache::CacheStore store(_pimpl->options.repoCachePath);
 749     return store.isCached(info.alias());
 750   }
 751
 752   RepoStatus RepoManager::cacheStatus( const RepoInfo &info ) const
 753   {
 754     cache::CacheStore store(_pimpl->options.repoCachePath);
 755     data::RecordId id = store.lookupRepository(info.alias());
 756     RepoStatus cache_status = store.repositoryStatus(id);
 757     return cache_status;
 758   }
 759
 760   Repository RepoManager::createFromCache( const RepoInfo &info,
 761                                            const ProgressData::ReceiverFnc & progressrcv )
 762   {
 763     callback::SendReport<ProgressReport> report;
 764     ProgressData progress;
 765     progress.sendTo(ProgressReportAdaptor( progressrcv, report ));
 766     //progress.sendTo( progressrcv );
 767     progress.name(str::form(_("Reading repository '%s' cache"), info.name().c_str()));
 768
 769     cache::CacheStore store(_pimpl->options.repoCachePath);
 770
 771     if ( ! store.isCached( info.alias() ) )
 772       ZYPP_THROW(RepoNotCachedException());
 773
 774     MIL << "Repository " << info.alias() << " is cached" << endl;
 775
 776     data::RecordId id = store.lookupRepository(info.alias());
 777
 778     CombinedProgressData subprogrcv(progress);
 779
 780     repo::cached::RepoOptions opts( info, _pimpl->options.repoCachePath, id );
 781     opts.readingResolvablesProgress = subprogrcv;
 782     repo::cached::RepoImpl::Ptr repoimpl =
 783         new repo::cached::RepoImpl( opts );
 784
 785     repoimpl->resolvables();
 786     // read the resolvables from cache
 787     return Repository(repoimpl);
 788   }
 789
 790   ////////////////////////////////////////////////////////////////////////////
 791
 792   /**
 793    * Generate a non existing filename in a directory, using a base
 794    * name. For example if a directory contains 3 files
 795    *
 796    * |-- bar
 797    * |-- foo
 798    * `-- moo
 799    *
 800    * If you try to generate a unique filename for this directory,
 801    * based on "ruu" you will get "ruu", but if you use the base
 802    * "foo" you will get "foo_1"
 803    *
 804    * \param dir Directory where the file needs to be unique
 805    * \param basefilename string to base the filename on.
 806    */
 807   static Pathname generate_non_existing_name( const Pathname &dir,
 808                                               const std::string &basefilename )
 809   {
 810     string final_filename = basefilename;
 811     int counter = 1;
 812     while ( PathInfo(dir + final_filename).isExist() )
 813     {
 814       final_filename = basefilename + "_" + str::numstring(counter);
 815       counter++;
 816     }
 817     return dir + Pathname(final_filename);
 818   }
 819
 820   ////////////////////////////////////////////////////////////////////////////
 821
 822   /**
 823    * \short Generate a related filename from a repo info
 824    *
 825    * From a repo info, it will try to use the alias as a filename
 826    * escaping it if necessary. Other fallbacks can be added to
 827    * this function in case there is no way to use the alias
 828    */
 829   static std::string generate_filename( const RepoInfo &info )
 830   {
 831     std::string fnd="/";
 832     std::string rep="_";
 833     std::string filename = info.alias();
 834     // replace slashes with underscores
 835     size_t pos = filename.find(fnd);
 836     while(pos!=string::npos)
 837     {
 838       filename.replace(pos,fnd.length(),rep);
 839       pos = filename.find(fnd,pos+rep.length());
 840     }
 841     filename = Pathname(filename).extend(".repo").asString();
 842     MIL << "generating filename for repo [" << info.alias() << "] : '" << filename << "'" << endl;
 843     return filename;
 844   }
 845
 846
 847   ////////////////////////////////////////////////////////////////////////////
 848
 849   void RepoManager::addRepository( const RepoInfo &info,
 850                                    const ProgressData::ReceiverFnc & progressrcv )
 851   {
 852     assert_alias(info);
 853
 854     ProgressData progress(100);
 855     callback::SendReport<ProgressReport> report;
 856     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
 857     progress.name(str::form(_("Adding repository '%s'"), info.name().c_str()));
 858     progress.toMin();
 859
 860     std::list<RepoInfo> repos = knownRepositories();
 861     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 862           it != repos.end();
 863           ++it )
 864     {
 865       if ( info.alias() == (*it).alias() )
 866         ZYPP_THROW(RepoAlreadyExistsException(info.alias()));
 867     }
 868
 869     RepoInfo tosave = info;
 870
 871     // check the first url for now
 872     if ( ZConfig::instance().repo_add_probe() || ( tosave.type() == RepoType::NONE ) )
 873     {
 874       RepoType probedtype;
 875       probedtype = probe(*tosave.baseUrlsBegin());
 876       if ( tosave.baseUrlsSize() > 0 )
 877       {
 878         if ( probedtype == RepoType::NONE )
 879           ZYPP_THROW(RepoUnknownTypeException());
 880         else
 881           tosave.setType(probedtype);
 882       }
 883     }
 884
 885     progress.set(50);
 886
 887     // assert the directory exists
 888     filesystem::assert_dir(_pimpl->options.knownReposPath);
 889
 890     Pathname repofile = generate_non_existing_name(_pimpl->options.knownReposPath,
 891                                                     generate_filename(tosave));
 892     // now we have a filename that does not exists
 893     MIL << "Saving repo in " << repofile << endl;
 894
 895     std::ofstream file(repofile.c_str());
 896     if (!file) {
 897       ZYPP_THROW (Exception( "Can't open " + repofile.asString() ) );
 898     }
 899
 900     tosave.dumpRepoOn(file);
 901     progress.toMax();
 902     MIL << "done" << endl;
 903   }
 904
 905   void RepoManager::addRepositories( const Url &url,
 906                                      const ProgressData::ReceiverFnc & progressrcv )
 907   {
 908     std::list<RepoInfo> knownrepos = knownRepositories();
 909     std::list<RepoInfo> repos = readRepoFile(url);
 910     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 911           it != repos.end();
 912           ++it )
 913     {
 914       // look if the alias is in the known repos.
 915       for ( std::list<RepoInfo>::const_iterator kit = knownrepos.begin();
 916           kit != knownrepos.end();
 917           ++kit )
 918       {
 919         if ( (*it).alias() == (*kit).alias() )
 920         {
 921           ERR << "To be added repo " << (*it).alias() << " conflicts with existing repo " << (*kit).alias() << endl;
 922           ZYPP_THROW(RepoAlreadyExistsException((*it).alias()));
 923         }
 924       }
 925     }
 926
 927     string filename = Pathname(url.getPathName()).basename();
 928
 929     if ( filename == Pathname() )
 930       ZYPP_THROW(RepoException("Invalid repo file name at " + url.asString() ));
 931
 932     // assert the directory exists
 933     filesystem::assert_dir(_pimpl->options.knownReposPath);
 934
 935     Pathname repofile = generate_non_existing_name(_pimpl->options.knownReposPath, filename);
 936     // now we have a filename that does not exists
 937     MIL << "Saving " << repos.size() << " repo" << ( repos.size() ? "s" : "" ) << " in " << repofile << endl;
 938
 939     std::ofstream file(repofile.c_str());
 940     if (!file) {
 941       ZYPP_THROW (Exception( "Can't open " + repofile.asString() ) );
 942     }
 943
 944     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 945           it != repos.end();
 946           ++it )
 947     {
 948       MIL << "Saving " << (*it).alias() << endl;
 949       (*it).dumpRepoOn(file);
 950     }
 951     MIL << "done" << endl;
 952   }
 953
 954   ////////////////////////////////////////////////////////////////////////////
 955
 956   void RepoManager::removeRepository( const RepoInfo & info,
 957                                       const ProgressData::ReceiverFnc & progressrcv)
 958   {
 959     ProgressData progress;
 960     callback::SendReport<ProgressReport> report;
 961     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
 962     progress.name(str::form(_("Removing repository '%s'"), info.name().c_str()));
 963
 964     MIL << "Going to delete repo " << info.alias() << endl;
 965
 966     std::list<RepoInfo> repos = knownRepositories();
 967     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 968           it != repos.end();
 969           ++it )
 970     {
 971       // they can be the same only if the provided is empty, that means
 972       // the provided repo has no alias
 973       // then skip
 974       if ( (!info.alias().empty()) && ( info.alias() != (*it).alias() ) )
 975         continue;
 976
 977       // TODO match by url
 978
 979       // we have a matcing repository, now we need to know
 980       // where it does come from.
 981       RepoInfo todelete = *it;
 982       if (todelete.filepath().empty())
 983       {
 984         ZYPP_THROW(RepoException("Can't figure where the repo is stored"));
 985       }
 986       else
 987       {
 988         // figure how many repos are there in the file:
 989         std::list<RepoInfo> filerepos = repositories_in_file(todelete.filepath());
 990         if ( (filerepos.size() == 1) && ( filerepos.front().alias() == todelete.alias() ) )
 991         {
 992           // easy, only this one, just delete the file
 993           if ( filesystem::unlink(todelete.filepath()) != 0 )
 994           {
 995             ZYPP_THROW(RepoException("Can't delete " + todelete.filepath().asString()));
 996           }
 997           MIL << todelete.alias() << " sucessfully deleted." << endl;
 998         }
 999         else
1000         {
1001           // there are more repos in the same file
1002           // write them back except the deleted one.
1003           //TmpFile tmp;
1004           //std::ofstream file(tmp.path().c_str());
1005
1006           // assert the directory exists
1007           filesystem::assert_dir(todelete.filepath().dirname());
1008
1009           std::ofstream file(todelete.filepath().c_str());
1010           if (!file) {
1011             //ZYPP_THROW (Exception( "Can't open " + tmp.path().asString() ) );
1012             ZYPP_THROW (Exception( "Can't open " + todelete.filepath().asString() ) );
1013           }
1014           for ( std::list<RepoInfo>::const_iterator fit = filerepos.begin();
1015                 fit != filerepos.end();
1016                 ++fit )
1017           {
1018             if ( (*fit).alias() != todelete.alias() )
1019               (*fit).dumpRepoOn(file);
1020           }
1021         }
1022
1023         CombinedProgressData subprogrcv(progress);
1024
1025         // now delete it from cache
1026         cleanCache( todelete, subprogrcv);
1027
1028         MIL << todelete.alias() << " sucessfully deleted." << endl;
1029         return;
1030       } // else filepath is empty
1031
1032     }
1033     // should not be reached on a sucess workflow
1034     ZYPP_THROW(RepoNotFoundException(info));
1035   }
1036
1037   ////////////////////////////////////////////////////////////////////////////
1038
1039   void RepoManager::modifyRepository( const std::string &alias,
1040                                       const RepoInfo & newinfo,
1041                                       const ProgressData::ReceiverFnc & progressrcv )
1042   {
1043     RepoInfo toedit = getRepositoryInfo(alias);
1044
1045     if (toedit.filepath().empty())
1046     {
1047       ZYPP_THROW(RepoException("Can't figure where the repo is stored"));
1048     }
1049     else
1050     {
1051       // figure how many repos are there in the file:
1052       std::list<RepoInfo> filerepos = repositories_in_file(toedit.filepath());
1053
1054       // there are more repos in the same file
1055       // write them back except the deleted one.
1056       //TmpFile tmp;
1057       //std::ofstream file(tmp.path().c_str());
1058
1059       // assert the directory exists
1060       filesystem::assert_dir(toedit.filepath().dirname());
1061
1062       std::ofstream file(toedit.filepath().c_str());
1063       if (!file) {
1064         //ZYPP_THROW (Exception( "Can't open " + tmp.path().asString() ) );
1065         ZYPP_THROW (Exception( "Can't open " + toedit.filepath().asString() ) );
1066       }
1067       for ( std::list<RepoInfo>::const_iterator fit = filerepos.begin();
1068             fit != filerepos.end();
1069             ++fit )
1070       {
1071           // if the alias is different, dump the original
1072           // if it is the same, dump the provided one
1073           if ( (*fit).alias() != toedit.alias() )
1074             (*fit).dumpRepoOn(file);
1075           else
1076             newinfo.dumpRepoOn(file);
1077       }
1078     }
1079   }
1080
1081   ////////////////////////////////////////////////////////////////////////////
1082
1083   RepoInfo RepoManager::getRepositoryInfo( const std::string &alias,
1084                                            const ProgressData::ReceiverFnc & progressrcv )
1085   {
1086     std::list<RepoInfo> repos = knownRepositories();
1087     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1088           it != repos.end();
1089           ++it )
1090     {
1091       if ( (*it).alias() == alias )
1092         return *it;
1093     }
1094     RepoInfo info;
1095     info.setAlias(info.alias());
1096     ZYPP_THROW(RepoNotFoundException(info));
1097   }
1098
1099   ////////////////////////////////////////////////////////////////////////////
1100
1101   RepoInfo RepoManager::getRepositoryInfo( const Url & url,
1102                                            const url::ViewOption & urlview,
1103                                            const ProgressData::ReceiverFnc & progressrcv )
1104   {
1105     std::list<RepoInfo> repos = knownRepositories();
1106     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1107           it != repos.end();
1108           ++it )
1109     {
1110       for(RepoInfo::urls_const_iterator urlit = (*it).baseUrlsBegin();
1111           urlit != (*it).baseUrlsEnd();
1112           ++urlit)
1113       {
1114         if ((*urlit).asString(urlview) == url.asString(urlview))
1115           return *it;
1116       }
1117     }
1118     RepoInfo info;
1119     info.setAlias(info.alias());
1120     info.setBaseUrl(url);
1121     ZYPP_THROW(RepoNotFoundException(info));
1122   }
1123
1124   ////////////////////////////////////////////////////////////////////////////
1125
1126   std::ostream & operator<<( std::ostream & str, const RepoManager & obj )
1127   {
1128     return str << *obj._pimpl;
1129   }
1130
1131   /////////////////////////////////////////////////////////////////
1132 } // namespace zypp
1133 ///////////////////////////////////////////////////////////////////