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