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       // create temp dir as sibling of rawpath
 381       filesystem::TmpDir tmpdir( filesystem::TmpDir::makeSibling( rawpath ) );
 382
 383       if ( ( repokind.toEnum() == RepoType::RPMMD_e ) ||
 384            ( repokind.toEnum() == RepoType::YAST2_e ) )
 385       {
 386         MediaSetAccess media(url);
 387         shared_ptr<repo::Downloader> downloader_ptr;
 388
 389         if ( repokind.toEnum() == RepoType::RPMMD_e )
 390           downloader_ptr.reset(new yum::Downloader(info.path()));
 391         else
 392           downloader_ptr.reset( new susetags::Downloader(info.path()));
 393
 394         RepoStatus newstatus = downloader_ptr->status(media);
 395         bool refresh = false;
 396         if ( oldstatus.checksum() == newstatus.checksum() )
 397         {
 398           MIL << "repo has not changed" << endl;
 399           if ( policy == RefreshForced )
 400           {
 401             MIL << "refresh set to forced" << endl;
 402             refresh = true;
 403           }
 404         }
 405         else
 406         {
 407           MIL << "repo has changed, going to refresh" << endl;
 408           refresh = true;
 409         }
 410
 411         return refresh;
 412       }
 413       else if ( repokind.toEnum() == RepoType::RPMPLAINDIR_e )
 414       {
 415         RepoStatus newstatus = parser::plaindir::dirStatus(url.getPathName());
 416         bool refresh = false;
 417         if ( oldstatus.checksum() == newstatus.checksum() )
 418         {
 419           MIL << "repo has not changed" << endl;
 420           if ( policy == RefreshForced )
 421           {
 422             MIL << "refresh set to forced" << endl;
 423             refresh = true;
 424           }
 425         }
 426         else
 427         {
 428           MIL << "repo has changed, going to refresh" << endl;
 429           refresh = true;
 430         }
 431
 432         return refresh;
 433       }
 434       else
 435       {
 436         ZYPP_THROW(RepoUnknownTypeException());
 437       }
 438     }
 439     catch ( const Exception &e )
 440     {
 441       ZYPP_CAUGHT(e);
 442       ERR << "refresh check failed for " << url << endl;
 443       ZYPP_RETHROW(e);
 444     }
 445
 446     return true; // default
 447   }
 448
 449   void RepoManager::refreshMetadata( const RepoInfo &info,
 450                                      RawMetadataRefreshPolicy policy,
 451                                      const ProgressData::ReceiverFnc & progress )
 452   {
 453     assert_alias(info);
 454     assert_urls(info);
 455
 456     // try urls one by one
 457     for ( RepoInfo::urls_const_iterator it = info.baseUrlsBegin(); it != info.baseUrlsEnd(); ++it )
 458     {
 459       try
 460       {
 461         Url url(*it);
 462
 463         // check whether to refresh metadata
 464         // if the check fails for this url, it throws, so another url will be checked
 465         if (!checkIfToRefreshMetadata(info, url, policy))
 466           return;
 467
 468         MIL << "Going to refresh metadata from " << url << endl;
 469
 470         repo::RepoType repokind = info.type();
 471
 472         // if the type is unknown, try probing.
 473         switch ( repokind.toEnum() )
 474         {
 475           case RepoType::NONE_e:
 476             // unknown, probe it
 477             repokind = probe(*it);
 478           break;
 479           default:
 480           break;
 481         }
 482
 483         Pathname rawpath = rawcache_path_for_repoinfo( _pimpl->options, info );
 484         filesystem::assert_dir(rawpath);
 485
 486         // create temp dir as sibling of rawpath
 487         filesystem::TmpDir tmpdir( filesystem::TmpDir::makeSibling( rawpath ) );
 488
 489         if ( ( repokind.toEnum() == RepoType::RPMMD_e ) ||
 490              ( repokind.toEnum() == RepoType::YAST2_e ) )
 491         {
 492           MediaSetAccess media(url);
 493           shared_ptr<repo::Downloader> downloader_ptr;
 494
 495           if ( repokind.toEnum() == RepoType::RPMMD_e )
 496             downloader_ptr.reset(new yum::Downloader(info.path()));
 497           else
 498             downloader_ptr.reset( new susetags::Downloader(info.path()));
 499
 500           /**
 501            * Given a downloader, sets the other repos raw metadata
 502            * path as cache paths for the fetcher, so if another
 503            * repo has the same file, it will not download it
 504            * but copy it from the other repository
 505            */
 506           std::list<RepoInfo> repos = knownRepositories();
 507           for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 508                 it != repos.end();
 509                 ++it )
 510           {
 511             downloader_ptr->addCachePath(rawcache_path_for_repoinfo( _pimpl->options, *it ));
 512           }
 513
 514           downloader_ptr->download( media, tmpdir.path());
 515         }
 516         else if ( repokind.toEnum() == RepoType::RPMPLAINDIR_e )
 517         {
 518           RepoStatus newstatus = parser::plaindir::dirStatus(url.getPathName());
 519
 520           std::ofstream file(( tmpdir.path() + "/cookie").c_str());
 521           if (!file) {
 522             ZYPP_THROW (Exception( "Can't open " + tmpdir.path().asString() + "/cookie" ) );
 523           }
 524           file << url << endl;
 525           file << newstatus.checksum() << endl;
 526
 527           file.close();
 528         }
 529         else
 530         {
 531           ZYPP_THROW(RepoUnknownTypeException());
 532         }
 533
 534         // ok we have the metadata, now exchange
 535         // the contents
 536         TmpDir oldmetadata( TmpDir::makeSibling( rawpath ) );
 537         filesystem::rename( rawpath, oldmetadata.path() );
 538         // move the just downloaded there
 539         filesystem::rename( tmpdir.path(), rawpath );
 540         // we are done.
 541         return;
 542       }
 543       catch ( const Exception &e )
 544       {
 545         ZYPP_CAUGHT(e);
 546         ERR << "Trying another url..." << endl;
 547       }
 548     } // for every url
 549     ERR << "No more urls..." << endl;
 550     ZYPP_THROW(RepoException(_("Valid metadata not found at specified URL(s)")));
 551   }
 552
 553   ////////////////////////////////////////////////////////////////////////////
 554
 555   void RepoManager::cleanMetadata( const RepoInfo &info,
 556                                    const ProgressData::ReceiverFnc & progress )
 557   {
 558     filesystem::recursive_rmdir(rawcache_path_for_repoinfo(_pimpl->options, info));
 559   }
 560
 561   void RepoManager::buildCache( const RepoInfo &info,
 562                                 CacheBuildPolicy policy,
 563                                 const ProgressData::ReceiverFnc & progressrcv )
 564   {
 565     assert_alias(info);
 566     Pathname rawpath = rawcache_path_for_repoinfo(_pimpl->options, info);
 567
 568     cache::CacheStore store(_pimpl->options.repoCachePath);
 569
 570     RepoStatus raw_metadata_status = metadataStatus(info);
 571     if ( raw_metadata_status.empty() )
 572     {
 573       ZYPP_THROW(RepoMetadataException(info));
 574     }
 575
 576     bool needs_cleaning = false;
 577     if ( store.isCached( info.alias() ) )
 578     {
 579       MIL << info.alias() << " is already cached." << endl;
 580       data::RecordId id = store.lookupRepository(info.alias());
 581       RepoStatus cache_status = store.repositoryStatus(id);
 582
 583       if ( cache_status.checksum() == raw_metadata_status.checksum() )
 584       {
 585         MIL << info.alias() << " cache is up to date with metadata." << endl;
 586         if ( policy == BuildIfNeeded ) {
 587           return;
 588         }
 589         else {
 590           MIL << info.alias() << " cache rebuild is forced" << endl;
 591         }
 592       }
 593
 594       needs_cleaning = true;
 595     }
 596
 597     ProgressData progress(100);
 598     callback::SendReport<ProgressReport> report;
 599     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
 600     progress.name(str::form(_("Building repository '%s' cache"), info.name().c_str()));
 601     progress.toMin();
 602
 603     if (needs_cleaning)
 604       cleanCacheInternal( store, info);
 605
 606     MIL << info.alias() << " building cache..." << endl;
 607     data::RecordId id = store.lookupOrAppendRepository(info.alias());
 608     // do we have type?
 609     repo::RepoType repokind = info.type();
 610
 611     // if the type is unknown, try probing.
 612     switch ( repokind.toEnum() )
 613     {
 614       case RepoType::NONE_e:
 615         // unknown, probe the local metadata
 616         repokind = probe(rawpath.asUrl());
 617       break;
 618       default:
 619       break;
 620     }
 621
 622
 623     switch ( repokind.toEnum() )
 624     {
 625       case RepoType::RPMMD_e :
 626       {
 627         CombinedProgressData subprogrcv( progress, 100);
 628         parser::yum::RepoParser parser(id, store, parser::yum::RepoParserOpts(), subprogrcv);
 629         parser.parse(rawpath);
 630           // no error
 631       }
 632       break;
 633       case RepoType::YAST2_e :
 634       {
 635         CombinedProgressData subprogrcv( progress, 100);
 636         parser::susetags::RepoParser parser(id, store, subprogrcv);
 637         parser.parse(rawpath);
 638         // no error
 639       }
 640       break;
 641       case RepoType::RPMPLAINDIR_e :
 642       {
 643         CombinedProgressData subprogrcv( progress, 100);
 644         InputStream is(rawpath + "cookie");
 645         string buffer;
 646         getline( is.stream(), buffer);
 647         Url url(buffer);
 648         parser::plaindir::RepoParser parser(id, store, subprogrcv);
 649         parser.parse(url.getPathName());
 650       }
 651       break;
 652       default:
 653         ZYPP_THROW(RepoUnknownTypeException());
 654     }
 655
 656     // update timestamp and checksum
 657     store.updateRepositoryStatus(id, raw_metadata_status);
 658
 659     MIL << "Commit cache.." << endl;
 660     store.commit();
 661     //progress.toMax();
 662   }
 663
 664   ////////////////////////////////////////////////////////////////////////////
 665
 666   repo::RepoType RepoManager::probe( const Url &url ) const
 667   {
 668     if ( url.getScheme() == "dir" && ! PathInfo( url.getPathName() ).isDir() )
 669     {
 670       // Handle non existing local directory in advance, as
 671       // MediaSetAccess does not support it.
 672       return repo::RepoType::NONE;
 673     }
 674
 675     try
 676     {
 677       MediaSetAccess access(url);
 678       if ( access.doesFileExist("/repodata/repomd.xml") )
 679         return repo::RepoType::RPMMD;
 680       if ( access.doesFileExist("/content") )
 681         return repo::RepoType::YAST2;
 682
 683       // if it is a local url of type dir
 684       if ( (! media::MediaManager::downloads(url)) && ( url.getScheme() == "dir" ) )
 685       {
 686         Pathname path = Pathname(url.getPathName());
 687         if ( PathInfo(path).isDir() )
 688         {
 689           // allow empty dirs for now
 690           return repo::RepoType::RPMPLAINDIR;
 691         }
 692       }
 693     }
 694     catch ( const media::MediaException &e )
 695     {
 696       ZYPP_CAUGHT(e);
 697       RepoException enew("Error trying to read from " + url.asString());
 698       enew.remember(e);
 699       ZYPP_THROW(enew);
 700     }
 701     catch ( const Exception &e )
 702     {
 703       ZYPP_CAUGHT(e);
 704       Exception enew("Unknown error reading from " + url.asString());
 705       enew.remember(e);
 706       ZYPP_THROW(enew);
 707     }
 708
 709     return repo::RepoType::NONE;
 710   }
 711
 712   ////////////////////////////////////////////////////////////////////////////
 713
 714   void RepoManager::cleanCache( const RepoInfo &info,
 715                                 const ProgressData::ReceiverFnc & progressrcv )
 716   {
 717     cache::CacheStore store(_pimpl->options.repoCachePath);
 718     cleanCacheInternal( store, info, progressrcv );
 719     store.commit();
 720   }
 721
 722   ////////////////////////////////////////////////////////////////////////////
 723
 724   bool RepoManager::isCached( const RepoInfo &info ) const
 725   {
 726     cache::CacheStore store(_pimpl->options.repoCachePath);
 727     return store.isCached(info.alias());
 728   }
 729
 730   RepoStatus RepoManager::cacheStatus( const RepoInfo &info ) const
 731   {
 732     cache::CacheStore store(_pimpl->options.repoCachePath);
 733     data::RecordId id = store.lookupRepository(info.alias());
 734     RepoStatus cache_status = store.repositoryStatus(id);
 735     return cache_status;
 736   }
 737
 738   Repository RepoManager::createFromCache( const RepoInfo &info,
 739                                            const ProgressData::ReceiverFnc & progressrcv )
 740   {
 741     callback::SendReport<ProgressReport> report;
 742     ProgressData progress;
 743     progress.sendTo(ProgressReportAdaptor( progressrcv, report ));
 744     //progress.sendTo( progressrcv );
 745     progress.name(str::form(_("Reading repository '%s' cache"), info.name().c_str()));
 746
 747     cache::CacheStore store(_pimpl->options.repoCachePath);
 748
 749     if ( ! store.isCached( info.alias() ) )
 750       ZYPP_THROW(RepoNotCachedException());
 751
 752     MIL << "Repository " << info.alias() << " is cached" << endl;
 753
 754     data::RecordId id = store.lookupRepository(info.alias());
 755
 756     CombinedProgressData subprogrcv(progress);
 757
 758     repo::cached::RepoOptions opts( info, _pimpl->options.repoCachePath, id );
 759     opts.readingResolvablesProgress = subprogrcv;
 760     repo::cached::RepoImpl::Ptr repoimpl =
 761         new repo::cached::RepoImpl( opts );
 762
 763     repoimpl->resolvables();
 764     // read the resolvables from cache
 765     return Repository(repoimpl);
 766   }
 767
 768   ////////////////////////////////////////////////////////////////////////////
 769
 770   /**
 771    * Generate a non existing filename in a directory, using a base
 772    * name. For example if a directory contains 3 files
 773    *
 774    * |-- bar
 775    * |-- foo
 776    * `-- moo
 777    *
 778    * If you try to generate a unique filename for this directory,
 779    * based on "ruu" you will get "ruu", but if you use the base
 780    * "foo" you will get "foo_1"
 781    *
 782    * \param dir Directory where the file needs to be unique
 783    * \param basefilename string to base the filename on.
 784    */
 785   static Pathname generate_non_existing_name( const Pathname &dir,
 786                                               const std::string &basefilename )
 787   {
 788     string final_filename = basefilename;
 789     int counter = 1;
 790     while ( PathInfo(dir + final_filename).isExist() )
 791     {
 792       final_filename = basefilename + "_" + str::numstring(counter);
 793       counter++;
 794     }
 795     return dir + Pathname(final_filename);
 796   }
 797
 798   ////////////////////////////////////////////////////////////////////////////
 799
 800   /**
 801    * \short Generate a related filename from a repo info
 802    *
 803    * From a repo info, it will try to use the alias as a filename
 804    * escaping it if necessary. Other fallbacks can be added to
 805    * this function in case there is no way to use the alias
 806    */
 807   static std::string generate_filename( const RepoInfo &info )
 808   {
 809     std::string fnd="/";
 810     std::string rep="_";
 811     std::string filename = info.alias();
 812     // replace slashes with underscores
 813     size_t pos = filename.find(fnd);
 814     while(pos!=string::npos)
 815     {
 816       filename.replace(pos,fnd.length(),rep);
 817       pos = filename.find(fnd,pos+rep.length());
 818     }
 819     filename = Pathname(filename).extend(".repo").asString();
 820     MIL << "generating filename for repo [" << info.alias() << "] : '" << filename << "'" << endl;
 821     return filename;
 822   }
 823
 824
 825   ////////////////////////////////////////////////////////////////////////////
 826
 827   void RepoManager::addRepository( const RepoInfo &info,
 828                                    const ProgressData::ReceiverFnc & progressrcv )
 829   {
 830     assert_alias(info);
 831
 832     ProgressData progress(100);
 833     callback::SendReport<ProgressReport> report;
 834     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
 835     progress.name(str::form(_("Adding repository '%s'"), info.name().c_str()));
 836     progress.toMin();
 837
 838     std::list<RepoInfo> repos = knownRepositories();
 839     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 840           it != repos.end();
 841           ++it )
 842     {
 843       if ( info.alias() == (*it).alias() )
 844         ZYPP_THROW(RepoAlreadyExistsException(info.alias()));
 845     }
 846
 847     RepoInfo tosave = info;
 848
 849     // check the first url for now
 850     if ( ZConfig::instance().repo_add_probe() || ( tosave.type() == RepoType::NONE ) )
 851     {
 852       RepoType probedtype;
 853       probedtype = probe(*tosave.baseUrlsBegin());
 854       if ( tosave.baseUrlsSize() > 0 )
 855       {
 856         if ( probedtype == RepoType::NONE )
 857           ZYPP_THROW(RepoUnknownTypeException());
 858         else
 859           tosave.setType(probedtype);
 860       }
 861     }
 862
 863     progress.set(50);
 864
 865     // assert the directory exists
 866     filesystem::assert_dir(_pimpl->options.knownReposPath);
 867
 868     Pathname repofile = generate_non_existing_name(_pimpl->options.knownReposPath,
 869                                                     generate_filename(tosave));
 870     // now we have a filename that does not exists
 871     MIL << "Saving repo in " << repofile << endl;
 872
 873     std::ofstream file(repofile.c_str());
 874     if (!file) {
 875       ZYPP_THROW (Exception( "Can't open " + repofile.asString() ) );
 876     }
 877
 878     tosave.dumpRepoOn(file);
 879     progress.toMax();
 880     MIL << "done" << endl;
 881   }
 882
 883   void RepoManager::addRepositories( const Url &url,
 884                                      const ProgressData::ReceiverFnc & progressrcv )
 885   {
 886     std::list<RepoInfo> knownrepos = knownRepositories();
 887     std::list<RepoInfo> repos = readRepoFile(url);
 888     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 889           it != repos.end();
 890           ++it )
 891     {
 892       // look if the alias is in the known repos.
 893       for ( std::list<RepoInfo>::const_iterator kit = knownrepos.begin();
 894           kit != knownrepos.end();
 895           ++kit )
 896       {
 897         if ( (*it).alias() == (*kit).alias() )
 898         {
 899           ERR << "To be added repo " << (*it).alias() << " conflicts with existing repo " << (*kit).alias() << endl;
 900           ZYPP_THROW(RepoAlreadyExistsException((*it).alias()));
 901         }
 902       }
 903     }
 904
 905     string filename = Pathname(url.getPathName()).basename();
 906
 907     if ( filename == Pathname() )
 908       ZYPP_THROW(RepoException("Invalid repo file name at " + url.asString() ));
 909
 910     // assert the directory exists
 911     filesystem::assert_dir(_pimpl->options.knownReposPath);
 912
 913     Pathname repofile = generate_non_existing_name(_pimpl->options.knownReposPath, filename);
 914     // now we have a filename that does not exists
 915     MIL << "Saving " << repos.size() << " repo" << ( repos.size() ? "s" : "" ) << " in " << repofile << endl;
 916
 917     std::ofstream file(repofile.c_str());
 918     if (!file) {
 919       ZYPP_THROW (Exception( "Can't open " + repofile.asString() ) );
 920     }
 921
 922     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 923           it != repos.end();
 924           ++it )
 925     {
 926       MIL << "Saving " << (*it).alias() << endl;
 927       (*it).dumpRepoOn(file);
 928     }
 929     MIL << "done" << endl;
 930   }
 931
 932   ////////////////////////////////////////////////////////////////////////////
 933
 934   void RepoManager::removeRepository( const RepoInfo & info,
 935                                       const ProgressData::ReceiverFnc & progressrcv)
 936   {
 937     ProgressData progress;
 938     callback::SendReport<ProgressReport> report;
 939     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
 940     progress.name(str::form(_("Removing repository '%s'"), info.name().c_str()));
 941
 942     MIL << "Going to delete repo " << info.alias() << endl;
 943
 944     std::list<RepoInfo> repos = knownRepositories();
 945     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 946           it != repos.end();
 947           ++it )
 948     {
 949       // they can be the same only if the provided is empty, that means
 950       // the provided repo has no alias
 951       // then skip
 952       if ( (!info.alias().empty()) && ( info.alias() != (*it).alias() ) )
 953         continue;
 954
 955       // TODO match by url
 956
 957       // we have a matcing repository, now we need to know
 958       // where it does come from.
 959       RepoInfo todelete = *it;
 960       if (todelete.filepath().empty())
 961       {
 962         ZYPP_THROW(RepoException("Can't figure where the repo is stored"));
 963       }
 964       else
 965       {
 966         // figure how many repos are there in the file:
 967         std::list<RepoInfo> filerepos = repositories_in_file(todelete.filepath());
 968         if ( (filerepos.size() == 1) && ( filerepos.front().alias() == todelete.alias() ) )
 969         {
 970           // easy, only this one, just delete the file
 971           if ( filesystem::unlink(todelete.filepath()) != 0 )
 972           {
 973             ZYPP_THROW(RepoException("Can't delete " + todelete.filepath().asString()));
 974           }
 975           MIL << todelete.alias() << " sucessfully deleted." << endl;
 976         }
 977         else
 978         {
 979           // there are more repos in the same file
 980           // write them back except the deleted one.
 981           //TmpFile tmp;
 982           //std::ofstream file(tmp.path().c_str());
 983
 984           // assert the directory exists
 985           filesystem::assert_dir(todelete.filepath().dirname());
 986
 987           std::ofstream file(todelete.filepath().c_str());
 988           if (!file) {
 989             //ZYPP_THROW (Exception( "Can't open " + tmp.path().asString() ) );
 990             ZYPP_THROW (Exception( "Can't open " + todelete.filepath().asString() ) );
 991           }
 992           for ( std::list<RepoInfo>::const_iterator fit = filerepos.begin();
 993                 fit != filerepos.end();
 994                 ++fit )
 995           {
 996             if ( (*fit).alias() != todelete.alias() )
 997               (*fit).dumpRepoOn(file);
 998           }
 999         }
1000
1001         CombinedProgressData subprogrcv(progress);
1002
1003         // now delete it from cache
1004         cleanCache( todelete, subprogrcv);
1005
1006         MIL << todelete.alias() << " sucessfully deleted." << endl;
1007         return;
1008       } // else filepath is empty
1009
1010     }
1011     // should not be reached on a sucess workflow
1012     ZYPP_THROW(RepoNotFoundException(info));
1013   }
1014
1015   ////////////////////////////////////////////////////////////////////////////
1016
1017   void RepoManager::modifyRepository( const std::string &alias,
1018                                       const RepoInfo & newinfo,
1019                                       const ProgressData::ReceiverFnc & progressrcv )
1020   {
1021     RepoInfo toedit = getRepositoryInfo(alias);
1022
1023     if (toedit.filepath().empty())
1024     {
1025       ZYPP_THROW(RepoException("Can't figure where the repo is stored"));
1026     }
1027     else
1028     {
1029       // figure how many repos are there in the file:
1030       std::list<RepoInfo> filerepos = repositories_in_file(toedit.filepath());
1031
1032       // there are more repos in the same file
1033       // write them back except the deleted one.
1034       //TmpFile tmp;
1035       //std::ofstream file(tmp.path().c_str());
1036
1037       // assert the directory exists
1038       filesystem::assert_dir(toedit.filepath().dirname());
1039
1040       std::ofstream file(toedit.filepath().c_str());
1041       if (!file) {
1042         //ZYPP_THROW (Exception( "Can't open " + tmp.path().asString() ) );
1043         ZYPP_THROW (Exception( "Can't open " + toedit.filepath().asString() ) );
1044       }
1045       for ( std::list<RepoInfo>::const_iterator fit = filerepos.begin();
1046             fit != filerepos.end();
1047             ++fit )
1048       {
1049           // if the alias is different, dump the original
1050           // if it is the same, dump the provided one
1051           if ( (*fit).alias() != toedit.alias() )
1052             (*fit).dumpRepoOn(file);
1053           else
1054             newinfo.dumpRepoOn(file);
1055       }
1056     }
1057   }
1058
1059   ////////////////////////////////////////////////////////////////////////////
1060
1061   RepoInfo RepoManager::getRepositoryInfo( const std::string &alias,
1062                                            const ProgressData::ReceiverFnc & progressrcv )
1063   {
1064     std::list<RepoInfo> repos = knownRepositories();
1065     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1066           it != repos.end();
1067           ++it )
1068     {
1069       if ( (*it).alias() == alias )
1070         return *it;
1071     }
1072     RepoInfo info;
1073     info.setAlias(info.alias());
1074     ZYPP_THROW(RepoNotFoundException(info));
1075   }
1076
1077   ////////////////////////////////////////////////////////////////////////////
1078
1079   RepoInfo RepoManager::getRepositoryInfo( const Url & url,
1080                                            const url::ViewOption & urlview,
1081                                            const ProgressData::ReceiverFnc & progressrcv )
1082   {
1083     std::list<RepoInfo> repos = knownRepositories();
1084     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1085           it != repos.end();
1086           ++it )
1087     {
1088       for(RepoInfo::urls_const_iterator urlit = (*it).baseUrlsBegin();
1089           urlit != (*it).baseUrlsEnd();
1090           ++urlit)
1091       {
1092         if ((*urlit).asString(urlview) == url.asString(urlview))
1093           return *it;
1094       }
1095     }
1096     RepoInfo info;
1097     info.setAlias(info.alias());
1098     info.setBaseUrl(url);
1099     ZYPP_THROW(RepoNotFoundException(info));
1100   }
1101
1102   ////////////////////////////////////////////////////////////////////////////
1103
1104   std::ostream & operator<<( std::ostream & str, const RepoManager & obj )
1105   {
1106     return str << *obj._pimpl;
1107   }
1108
1109   /////////////////////////////////////////////////////////////////
1110 } // namespace zypp
1111 ///////////////////////////////////////////////////////////////////