zypp/RepoManager.cc

   1 /*---------------------------------------------------------------------\
   2 |                          ____ _   __ __ ___                          |
   3 |                         |__  / \ / / . \ . \                         |
   4 |                           / / \ V /|  _/  _/                         |
   5 |                          / /__ | | | | | |                           |
   6 |                         /_____||_| |_| |_|                           |
   7 |                                                                      |
   8 \---------------------------------------------------------------------*/
   9 /** \file       zypp/RepoManager.cc
  10  *
  11 */
  12
  13 #include <cstdlib>
  14 #include <iostream>
  15 #include <fstream>
  16 #include <sstream>
  17 #include <list>
  18 #include <map>
  19 #include <algorithm>
  20 #include "zypp/base/InputStream.h"
  21 #include "zypp/base/Logger.h"
  22 #include "zypp/base/Gettext.h"
  23 #include "zypp/base/Function.h"
  24 #include "zypp/base/Regex.h"
  25 #include "zypp/PathInfo.h"
  26 #include "zypp/TmpPath.h"
  27
  28 #include "zypp/repo/RepoException.h"
  29 #include "zypp/RepoManager.h"
  30
  31 #include "zypp/media/MediaManager.h"
  32 #include "zypp/MediaSetAccess.h"
  33 #include "zypp/ExternalProgram.h"
  34 #include "zypp/ManagedFile.h"
  35
  36 #include "zypp/parser/RepoFileReader.h"
  37 #include "zypp/repo/yum/Downloader.h"
  38 #include "zypp/parser/yum/RepoParser.h"
  39 #include "zypp/repo/susetags/Downloader.h"
  40 #include "zypp/parser/susetags/RepoParser.h"
  41 #include "zypp/parser/plaindir/RepoParser.h"
  42
  43 #include "zypp/ZYppCallbacks.h"
  44
  45 #include "sat/Pool.h"
  46 #include "satsolver/pool.h"
  47 #include "satsolver/repo.h"
  48 #include "satsolver/repo_solv.h"
  49
  50 using namespace std;
  51 using namespace zypp;
  52 using namespace zypp::repo;
  53 using namespace zypp::filesystem;
  54
  55 using namespace zypp::repo;
  56
  57 ///////////////////////////////////////////////////////////////////
  58 namespace zypp
  59 { /////////////////////////////////////////////////////////////////
  60
  61   ///////////////////////////////////////////////////////////////////
  62   //
  63   //    CLASS NAME : RepoManagerOptions
  64   //
  65   ///////////////////////////////////////////////////////////////////
  66
  67   RepoManagerOptions::RepoManagerOptions()
  68   {
  69     repoCachePath         = ZConfig::instance().repoCachePath();
  70     repoRawCachePath      = ZConfig::instance().repoMetadataPath();
  71     repoSolvCachePath     = ZConfig::instance().repoSolvfilesPath();
  72     repoPackagesCachePath = ZConfig::instance().repoPackagesPath();
  73     knownReposPath        = ZConfig::instance().knownReposPath();
  74     probe                 = ZConfig::instance().repo_add_probe();
  75   }
  76
  77   RepoManagerOptions RepoManagerOptions::makeTestSetup( const Pathname & root_r )
  78   {
  79     RepoManagerOptions ret;
  80     ret.repoCachePath         = root_r;
  81     ret.repoRawCachePath      = root_r/"raw";
  82     ret.repoSolvCachePath     = root_r/"solv";
  83     ret.repoPackagesCachePath = root_r/"packages";
  84     ret.knownReposPath        = root_r/"repos.d";
  85     return ret;
  86   }
  87
  88   ////////////////////////////////////////////////////////////////////////////
  89
  90   /**
  91     * \short Simple callback to collect the results
  92     *
  93     * Classes like RepoFileParser call the callback
  94     * once per each repo in a file.
  95     *
  96     * Passing this functor as callback, you can collect
  97     * all resuls at the end, without dealing with async
  98     * code.
  99     */
 100     struct RepoCollector
 101     {
 102       RepoCollector()
 103       {}
 104
 105       ~RepoCollector()
 106       {}
 107
 108       bool collect( const RepoInfo &repo )
 109       {
 110         repos.push_back(repo);
 111         return true;
 112       }
 113
 114       RepoInfoList repos;
 115     };
 116
 117   ////////////////////////////////////////////////////////////////////////////
 118
 119   /**
 120    * Reads RepoInfo's from a repo file.
 121    *
 122    * \param file pathname of the file to read.
 123    */
 124   static std::list<RepoInfo> repositories_in_file( const Pathname & file )
 125   {
 126     MIL << "repo file: " << file << endl;
 127     RepoCollector collector;
 128     parser::RepoFileReader parser( file, bind( &RepoCollector::collect, &collector, _1 ) );
 129     return collector.repos;
 130   }
 131
 132   ////////////////////////////////////////////////////////////////////////////
 133
 134   std::list<RepoInfo> readRepoFile(const Url & repo_file)
 135    {
 136      // no interface to download a specific file, using workaround:
 137      //! \todo add MediaManager::provideFile(Url file_url) to easily access any file URLs? (no need for media access id or media_nr)
 138      Url url(repo_file);
 139      Pathname path(url.getPathName());
 140      url.setPathName ("/");
 141      MediaSetAccess access(url);
 142      Pathname local = access.provideFile(path);
 143
 144      DBG << "reading repo file " << repo_file << ", local path: " << local << endl;
 145
 146      return repositories_in_file(local);
 147    }
 148
 149   ////////////////////////////////////////////////////////////////////////////
 150
 151   /**
 152    * \short List of RepoInfo's from a directory
 153    *
 154    * Goes trough every file ending with ".repo" in a directory and adds all
 155    * RepoInfo's contained in that file.
 156    *
 157    * \param dir pathname of the directory to read.
 158    */
 159   static std::list<RepoInfo> repositories_in_dir( const Pathname &dir )
 160   {
 161     MIL << "directory " << dir << endl;
 162     list<RepoInfo> repos;
 163     list<Pathname> entries;
 164     if ( filesystem::readdir( entries, Pathname(dir), false ) != 0 )
 165       ZYPP_THROW(Exception("failed to read directory"));
 166
 167     str::regex allowedRepoExt("^\\.repo(_[0-9]+)?$");
 168     for ( list<Pathname>::const_iterator it = entries.begin(); it != entries.end(); ++it )
 169     {
 170       if (str::regex_match(it->extension(), allowedRepoExt))
 171       {
 172         list<RepoInfo> tmp = repositories_in_file( *it );
 173         repos.insert( repos.end(), tmp.begin(), tmp.end() );
 174
 175         //std::copy( collector.repos.begin(), collector.repos.end(), std::back_inserter(repos));
 176         //MIL << "ok" << endl;
 177       }
 178     }
 179     return repos;
 180   }
 181
 182   ////////////////////////////////////////////////////////////////////////////
 183
 184   static void assert_alias( const RepoInfo &info )
 185   {
 186     if (info.alias().empty())
 187         ZYPP_THROW(RepoNoAliasException());
 188   }
 189
 190   ////////////////////////////////////////////////////////////////////////////
 191
 192   static void assert_urls( const RepoInfo &info )
 193   {
 194     if (info.baseUrlsEmpty())
 195         ZYPP_THROW(RepoNoUrlException());
 196   }
 197
 198   ////////////////////////////////////////////////////////////////////////////
 199
 200   /**
 201    * \short Calculates the raw cache path for a repository
 202    */
 203   static Pathname rawcache_path_for_repoinfo( const RepoManagerOptions &opt, const RepoInfo &info )
 204   {
 205     assert_alias(info);
 206     return opt.repoRawCachePath / info.escaped_alias();
 207   }
 208
 209   /**
 210    * \short Calculates the packages cache path for a repository
 211    */
 212   static Pathname packagescache_path_for_repoinfo( const RepoManagerOptions &opt, const RepoInfo &info )
 213   {
 214     assert_alias(info);
 215     return opt.repoPackagesCachePath / info.escaped_alias();
 216   }
 217
 218   static Pathname solv_path_for_repoinfo( const RepoManagerOptions &opt, const RepoInfo &info)
 219   {
 220     assert_alias(info);
 221     return opt.repoSolvCachePath / info.escaped_alias();
 222   }
 223
 224   ///////////////////////////////////////////////////////////////////
 225   //
 226   //    CLASS NAME : RepoManager::Impl
 227   //
 228   ///////////////////////////////////////////////////////////////////
 229
 230   /**
 231    * \short RepoManager implementation.
 232    */
 233   struct RepoManager::Impl
 234   {
 235     Impl( const RepoManagerOptions &opt )
 236       : options(opt)
 237     {
 238
 239     }
 240
 241     Impl()
 242     {
 243
 244     }
 245
 246     RepoManagerOptions options;
 247
 248     map<string, RepoInfo> _repoinfos;
 249
 250   public:
 251     /** Offer default Impl. */
 252     static shared_ptr<Impl> nullimpl()
 253     {
 254       static shared_ptr<Impl> _nullimpl( new Impl );
 255       return _nullimpl;
 256     }
 257
 258   private:
 259     friend Impl * rwcowClone<Impl>( const Impl * rhs );
 260     /** clone for RWCOW_pointer */
 261     Impl * clone() const
 262     { return new Impl( *this ); }
 263   };
 264
 265   ///////////////////////////////////////////////////////////////////
 266
 267   /** \relates RepoManager::Impl Stream output */
 268   inline std::ostream & operator<<( std::ostream & str, const RepoManager::Impl & obj )
 269   {
 270     return str << "RepoManager::Impl";
 271   }
 272
 273   ///////////////////////////////////////////////////////////////////
 274   //
 275   //    CLASS NAME : RepoManager
 276   //
 277   ///////////////////////////////////////////////////////////////////
 278
 279   RepoManager::RepoManager( const RepoManagerOptions &opt )
 280   : _pimpl( new Impl(opt) )
 281   {}
 282
 283   ////////////////////////////////////////////////////////////////////////////
 284
 285   RepoManager::~RepoManager()
 286   {}
 287
 288   ////////////////////////////////////////////////////////////////////////////
 289
 290   std::list<RepoInfo> RepoManager::knownRepositories() const
 291   {
 292     MIL << endl;
 293
 294     if ( PathInfo(_pimpl->options.knownReposPath).isExist() )
 295     {
 296       RepoInfoList repos = repositories_in_dir(_pimpl->options.knownReposPath);
 297       for ( RepoInfoList::iterator it = repos.begin();
 298             it != repos.end();
 299             ++it )
 300       {
 301         // set the metadata path for the repo
 302         Pathname metadata_path = rawcache_path_for_repoinfo(_pimpl->options, (*it));
 303         (*it).setMetadataPath(metadata_path);
 304
 305         // set the downloaded packages path for the repo
 306         Pathname packages_path = packagescache_path_for_repoinfo(_pimpl->options, (*it));
 307         (*it).setPackagesPath(packages_path);
 308       }
 309       return repos;
 310     }
 311     else
 312       return std::list<RepoInfo>();
 313
 314     MIL << endl;
 315   }
 316
 317   ////////////////////////////////////////////////////////////////////////////
 318
 319   Pathname RepoManager::metadataPath( const RepoInfo &info ) const
 320   {
 321     return rawcache_path_for_repoinfo(_pimpl->options, info );
 322   }
 323
 324   ////////////////////////////////////////////////////////////////////////////
 325
 326   RepoStatus RepoManager::metadataStatus( const RepoInfo &info ) const
 327   {
 328     Pathname rawpath = rawcache_path_for_repoinfo( _pimpl->options, info );
 329     RepoType repokind = info.type();
 330     RepoStatus status;
 331
 332     switch ( repokind.toEnum() )
 333     {
 334       case RepoType::NONE_e:
 335       // unknown, probe the local metadata
 336         repokind = probe(rawpath.asUrl());
 337       break;
 338       default:
 339       break;
 340     }
 341
 342     switch ( repokind.toEnum() )
 343     {
 344       case RepoType::RPMMD_e :
 345       {
 346         status = RepoStatus( rawpath + "/repodata/repomd.xml");
 347       }
 348       break;
 349
 350       case RepoType::YAST2_e :
 351       {
 352         status = RepoStatus( rawpath + "/content") && (RepoStatus( rawpath + "/media.1/media"));
 353       }
 354       break;
 355
 356       case RepoType::RPMPLAINDIR_e :
 357       {
 358         if ( PathInfo(Pathname(rawpath + "/cookie")).isExist() )
 359           status = RepoStatus( rawpath + "/cookie");
 360       }
 361       break;
 362
 363       case RepoType::NONE_e :
 364         // Return default RepoStatus in case of RepoType::NONE
 365         // indicating it should be created?
 366         // ZYPP_THROW(RepoUnknownTypeException());
 367         break;
 368     }
 369     return status;
 370   }
 371
 372   void RepoManager::touchIndexFile(const RepoInfo & info)
 373   {
 374     Pathname rawpath = rawcache_path_for_repoinfo( _pimpl->options, info );
 375
 376     RepoType repokind = info.type();
 377     if ( repokind.toEnum() == RepoType::NONE_e )
 378       // unknown, probe the local metadata
 379       repokind = probe(rawpath.asUrl());
 380     // if still unknown, just return
 381     if (repokind == RepoType::NONE_e)
 382       return;
 383
 384     Pathname p;
 385     switch ( repokind.toEnum() )
 386     {
 387       case RepoType::RPMMD_e :
 388         p = Pathname(rawpath + "/repodata/repomd.xml");
 389         break;
 390
 391       case RepoType::YAST2_e :
 392         p = Pathname(rawpath + "/content");
 393         break;
 394
 395       case RepoType::RPMPLAINDIR_e :
 396         p = Pathname(rawpath + "/cookie");
 397         break;
 398
 399       case RepoType::NONE_e :
 400       default:
 401         break;
 402     }
 403
 404     // touch the file, ignore error (they are logged anyway)
 405     filesystem::touch(p);
 406   }
 407
 408   RepoManager::RefreshCheckStatus RepoManager::checkIfToRefreshMetadata(
 409                                               const RepoInfo &info,
 410                                               const Url &url,
 411                                               RawMetadataRefreshPolicy policy )
 412   {
 413     assert_alias(info);
 414
 415     RepoStatus oldstatus;
 416     RepoStatus newstatus;
 417
 418     try
 419     {
 420       MIL << "Going to try to check whether refresh is needed for " << url << endl;
 421
 422       repo::RepoType repokind = info.type();
 423
 424       // if the type is unknown, try probing.
 425       switch ( repokind.toEnum() )
 426       {
 427         case RepoType::NONE_e:
 428           // unknown, probe it
 429           repokind = probe(url);
 430         break;
 431         default:
 432         break;
 433       }
 434
 435       Pathname rawpath = rawcache_path_for_repoinfo( _pimpl->options, info );
 436       filesystem::assert_dir(rawpath);
 437       oldstatus = metadataStatus(info);
 438
 439       // now we've got the old (cached) status, we can decide repo.refresh.delay
 440       if (policy != RefreshForced && policy != RefreshIfNeededIgnoreDelay)
 441       {
 442         // difference in seconds
 443         double diff = difftime(
 444           (Date::ValueType)Date::now(),
 445           (Date::ValueType)oldstatus.timestamp()) / 60;
 446
 447         DBG << "oldstatus: " << (Date::ValueType)oldstatus.timestamp() << endl;
 448         DBG << "current time: " << (Date::ValueType)Date::now() << endl;
 449         DBG << "last refresh = " << diff << " minutes ago" << endl;
 450
 451         if (diff < ZConfig::instance().repo_refresh_delay())
 452         {
 453           MIL << "Repository '" << info.alias()
 454               << "' has been refreshed less than repo.refresh.delay ("
 455               << ZConfig::instance().repo_refresh_delay()
 456               << ") minutes ago. Advising to skip refresh" << endl;
 457           return REPO_CHECK_DELAYED;
 458         }
 459       }
 460
 461       // create temp dir as sibling of rawpath
 462       filesystem::TmpDir tmpdir( filesystem::TmpDir::makeSibling( rawpath ) );
 463
 464       if ( ( repokind.toEnum() == RepoType::RPMMD_e ) ||
 465            ( repokind.toEnum() == RepoType::YAST2_e ) )
 466       {
 467         MediaSetAccess media(url);
 468         shared_ptr<repo::Downloader> downloader_ptr;
 469
 470         if ( repokind.toEnum() == RepoType::RPMMD_e )
 471           downloader_ptr.reset(new yum::Downloader(info.path()));
 472         else
 473           downloader_ptr.reset( new susetags::Downloader(info.path()));
 474
 475         RepoStatus newstatus = downloader_ptr->status(media);
 476         bool refresh = false;
 477         if ( oldstatus.checksum() == newstatus.checksum() )
 478         {
 479           MIL << "repo has not changed" << endl;
 480           if ( policy == RefreshForced )
 481           {
 482             MIL << "refresh set to forced" << endl;
 483             refresh = true;
 484           }
 485         }
 486         else
 487         {
 488           MIL << "repo has changed, going to refresh" << endl;
 489           refresh = true;
 490         }
 491
 492         if (!refresh)
 493           touchIndexFile(info);
 494
 495         return refresh ? REFRESH_NEEDED : REPO_UP_TO_DATE;
 496       }
 497       else if ( repokind.toEnum() == RepoType::RPMPLAINDIR_e )
 498       {
 499         RepoStatus newstatus = parser::plaindir::dirStatus(url.getPathName());
 500         bool refresh = false;
 501         if ( oldstatus.checksum() == newstatus.checksum() )
 502         {
 503           MIL << "repo has not changed" << endl;
 504           if ( policy == RefreshForced )
 505           {
 506             MIL << "refresh set to forced" << endl;
 507             refresh = true;
 508           }
 509         }
 510         else
 511         {
 512           MIL << "repo has changed, going to refresh" << endl;
 513           refresh = true;
 514         }
 515
 516         if (!refresh)
 517           touchIndexFile(info);
 518
 519         return refresh ? REFRESH_NEEDED : REPO_UP_TO_DATE;
 520       }
 521       else
 522       {
 523         ZYPP_THROW(RepoUnknownTypeException());
 524       }
 525     }
 526     catch ( const Exception &e )
 527     {
 528       ZYPP_CAUGHT(e);
 529       ERR << "refresh check failed for " << url << endl;
 530       ZYPP_RETHROW(e);
 531     }
 532
 533     return REFRESH_NEEDED; // default
 534   }
 535
 536   void RepoManager::refreshMetadata( const RepoInfo &info,
 537                                      RawMetadataRefreshPolicy policy,
 538                                      const ProgressData::ReceiverFnc & progress )
 539   {
 540     assert_alias(info);
 541     assert_urls(info);
 542
 543     // we will throw this later if no URL checks out fine
 544     RepoException rexception(_("Valid metadata not found at specified URL(s)"));
 545
 546     // try urls one by one
 547     for ( RepoInfo::urls_const_iterator it = info.baseUrlsBegin(); it != info.baseUrlsEnd(); ++it )
 548     {
 549       try
 550       {
 551         Url url(*it);
 552
 553         // check whether to refresh metadata
 554         // if the check fails for this url, it throws, so another url will be checked
 555         if (checkIfToRefreshMetadata(info, url, policy)!=REFRESH_NEEDED)
 556           return;
 557
 558         MIL << "Going to refresh metadata from " << url << endl;
 559
 560         repo::RepoType repokind = info.type();
 561
 562         // if the type is unknown, try probing.
 563         switch ( repokind.toEnum() )
 564         {
 565           case RepoType::NONE_e:
 566             // unknown, probe it
 567             repokind = probe(*it);
 568
 569             if (repokind.toEnum() != RepoType::NONE_e)
 570             {
 571               //save probed type only for repos in system
 572               std::list<RepoInfo> repos = knownRepositories();
 573               for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 574                    it != repos.end(); ++it )
 575               {
 576                 if ( info.alias() == (*it).alias() )
 577                 {
 578                   RepoInfo modifiedrepo = info;
 579                   modifiedrepo.setType(repokind);
 580                   modifyRepository(info.alias(),modifiedrepo);
 581                 }
 582               }
 583             }
 584           break;
 585           default:
 586           break;
 587         }
 588
 589         Pathname rawpath = rawcache_path_for_repoinfo( _pimpl->options, info );
 590         filesystem::assert_dir(rawpath);
 591
 592         // create temp dir as sibling of rawpath
 593         filesystem::TmpDir tmpdir( filesystem::TmpDir::makeSibling( rawpath ) );
 594
 595         if ( ( repokind.toEnum() == RepoType::RPMMD_e ) ||
 596              ( repokind.toEnum() == RepoType::YAST2_e ) )
 597         {
 598           MediaSetAccess media(url);
 599           shared_ptr<repo::Downloader> downloader_ptr;
 600
 601           if ( repokind.toEnum() == RepoType::RPMMD_e )
 602             downloader_ptr.reset(new yum::Downloader(info.path()));
 603           else
 604             downloader_ptr.reset( new susetags::Downloader(info.path()));
 605
 606           /**
 607            * Given a downloader, sets the other repos raw metadata
 608            * path as cache paths for the fetcher, so if another
 609            * repo has the same file, it will not download it
 610            * but copy it from the other repository
 611            */
 612           std::list<RepoInfo> repos = knownRepositories();
 613           for ( std::list<RepoInfo>::const_iterator it = repos.begin();
 614                 it != repos.end();
 615                 ++it )
 616           {
 617             Pathname cachepath(rawcache_path_for_repoinfo( _pimpl->options, *it ));
 618             if ( PathInfo(cachepath).isExist() )
 619               downloader_ptr->addCachePath(cachepath);
 620           }
 621
 622           downloader_ptr->download( media, tmpdir.path());
 623         }
 624         else if ( repokind.toEnum() == RepoType::RPMPLAINDIR_e )
 625         {
 626           RepoStatus newstatus = parser::plaindir::dirStatus(url.getPathName());
 627
 628           std::ofstream file(( tmpdir.path() + "/cookie").c_str());
 629           if (!file) {
 630             ZYPP_THROW (Exception( "Can't open " + tmpdir.path().asString() + "/cookie" ) );
 631           }
 632           file << url << endl;
 633           file << newstatus.checksum() << endl;
 634
 635           file.close();
 636         }
 637         else
 638         {
 639           ZYPP_THROW(RepoUnknownTypeException());
 640         }
 641
 642         // ok we have the metadata, now exchange
 643         // the contents
 644
 645         TmpDir oldmetadata( TmpDir::makeSibling( rawpath ) );
 646         filesystem::rename( rawpath, oldmetadata.path() );
 647         // move the just downloaded there
 648         filesystem::rename( tmpdir.path(), rawpath );
 649
 650         // we are done.
 651         return;
 652       }
 653       catch ( const Exception &e )
 654       {
 655         ZYPP_CAUGHT(e);
 656         ERR << "Trying another url..." << endl;
 657
 658         // remember the exception caught for the *first URL*
 659         // if all other URLs fail, the rexception will be thrown with the
 660         // cause of the problem of the first URL remembered
 661         if (it == info.baseUrlsBegin())
 662           rexception.remember(e);
 663       }
 664     } // for every url
 665     ERR << "No more urls..." << endl;
 666     ZYPP_THROW(rexception);
 667   }
 668
 669   ////////////////////////////////////////////////////////////////////////////
 670
 671   void RepoManager::cleanMetadata( const RepoInfo &info,
 672                                    const ProgressData::ReceiverFnc & progressfnc )
 673   {
 674     ProgressData progress(100);
 675     progress.sendTo(progressfnc);
 676
 677     filesystem::recursive_rmdir(rawcache_path_for_repoinfo(_pimpl->options, info));
 678     progress.toMax();
 679   }
 680
 681   void RepoManager::cleanPackages( const RepoInfo &info,
 682                                    const ProgressData::ReceiverFnc & progressfnc )
 683   {
 684     ProgressData progress(100);
 685     progress.sendTo(progressfnc);
 686
 687     filesystem::recursive_rmdir(packagescache_path_for_repoinfo(_pimpl->options, info));
 688     progress.toMax();
 689   }
 690
 691   void RepoManager::buildCache( const RepoInfo &info,
 692                                 CacheBuildPolicy policy,
 693                                 const ProgressData::ReceiverFnc & progressrcv )
 694   {
 695     assert_alias(info);
 696     Pathname rawpath = rawcache_path_for_repoinfo(_pimpl->options, info);
 697
 698     filesystem::assert_dir(_pimpl->options.repoCachePath);
 699     RepoStatus raw_metadata_status = metadataStatus(info);
 700     if ( raw_metadata_status.empty() )
 701     {
 702        /* if there is no cache at this point, we refresh the raw
 703           in case this is the first time - if it's !autorefresh,
 704           we may still refresh */
 705       refreshMetadata(info, RefreshIfNeeded, progressrcv );
 706       raw_metadata_status = metadataStatus(info);
 707     }
 708
 709     bool needs_cleaning = false;
 710     if ( isCached( info ) )
 711     {
 712       MIL << info.alias() << " is already cached." << endl;
 713       //data::RecordId id = store.lookupRepository(info.alias());
 714       RepoStatus cache_status = cacheStatus(info);
 715
 716       if ( cache_status.checksum() == raw_metadata_status.checksum() )
 717       {
 718         MIL << info.alias() << " cache is up to date with metadata." << endl;
 719         if ( policy == BuildIfNeeded ) {
 720           return;
 721         }
 722         else {
 723           MIL << info.alias() << " cache rebuild is forced" << endl;
 724         }
 725       }
 726
 727       needs_cleaning = true;
 728     }
 729
 730     ProgressData progress(100);
 731     callback::SendReport<ProgressReport> report;
 732     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
 733     progress.name(str::form(_("Building repository '%s' cache"), info.name().c_str()));
 734     progress.toMin();
 735
 736     if (needs_cleaning)
 737     {
 738       cleanCache(info);
 739     }
 740
 741     MIL << info.alias() << " building cache..." << endl;
 742
 743     Pathname base = solv_path_for_repoinfo( _pimpl->options, info);
 744     filesystem::assert_dir(base);
 745     Pathname solvfile = base / "solv";
 746
 747     // do we have type?
 748     repo::RepoType repokind = info.type();
 749
 750     // if the type is unknown, try probing.
 751     switch ( repokind.toEnum() )
 752     {
 753       case RepoType::NONE_e:
 754         // unknown, probe the local metadata
 755         repokind = probe(rawpath.asUrl());
 756       break;
 757       default:
 758       break;
 759     }
 760
 761     MIL << "repo type is " << repokind << endl;
 762
 763     switch ( repokind.toEnum() )
 764     {
 765       case RepoType::RPMMD_e :
 766       case RepoType::YAST2_e :
 767       case RepoType::RPMPLAINDIR_e :
 768       {
 769         // Take care we unlink the solvfile on exception
 770         ManagedFile guard( solvfile, filesystem::unlink );
 771
 772         ostringstream cmd;
 773         if ( repokind.toEnum() == RepoType::RPMPLAINDIR_e )
 774         {
 775           cmd << str::form( "repo2solv.sh \"%s\" > \"%s\"", info.baseUrlsBegin()->getPathName().c_str(), solvfile.c_str() );
 776         } else
 777           cmd << str::form( "repo2solv.sh \"%s\" > \"%s\"", rawpath.c_str(), solvfile.c_str() );
 778
 779         MIL << "Executing: " << cmd.str() << endl;
 780         ExternalProgram prog( cmd.str(), ExternalProgram::Stderr_To_Stdout );
 781
 782         cmd << endl;
 783         for ( string output( prog.receiveLine() ); output.length(); output = prog.receiveLine() ) {
 784           WAR << "  " << output;
 785           cmd << "     " << output;
 786         }
 787
 788         int ret = prog.close();
 789         if ( ret != 0 )
 790         {
 791           RepoException ex(str::form("Failed to cache repo (%d).", ret));
 792           ex.remember( cmd.str() );
 793           ZYPP_THROW(ex);
 794         }
 795
 796         // We keep it.
 797         guard.resetDispose();
 798       }
 799       break;
 800       default:
 801         ZYPP_THROW(RepoUnknownTypeException("Unhandled repository type"));
 802       break;
 803     }
 804 #if 0
 805     switch ( repokind.toEnum() )
 806     {
 807       case RepoType::RPMMD_e :
 808       if (0)
 809       {
 810         CombinedProgressData subprogrcv( progress, 100);
 811         parser::yum::RepoParser parser(id, store, parser::yum::RepoParserOpts(), subprogrcv);
 812         parser.parse(rawpath);
 813           // no error
 814       }
 815       break;
 816       case RepoType::YAST2_e :
 817       if (0)
 818       {
 819         CombinedProgressData subprogrcv( progress, 100);
 820         parser::susetags::RepoParser parser(id, store, subprogrcv);
 821         parser.parse(rawpath);
 822         // no error
 823       }
 824       break;
 825
 826       default:
 827         ZYPP_THROW(RepoUnknownTypeException());
 828     }
 829 #endif
 830     // update timestamp and checksum
 831     //store.updateRepositoryStatus(id, raw_metadata_status);
 832     setCacheStatus(info, raw_metadata_status);
 833     MIL << "Commit cache.." << endl;
 834     //store.commit();
 835     //progress.toMax();
 836   }
 837
 838   ////////////////////////////////////////////////////////////////////////////
 839
 840   repo::RepoType RepoManager::probe( const Url &url ) const
 841   {
 842     if ( url.getScheme() == "dir" && ! PathInfo( url.getPathName() ).isDir() )
 843     {
 844       // Handle non existing local directory in advance, as
 845       // MediaSetAccess does not support it.
 846       return repo::RepoType::NONE;
 847     }
 848
 849     try
 850     {
 851       MediaSetAccess access(url);
 852       if ( access.doesFileExist("/repodata/repomd.xml") )
 853         return repo::RepoType::RPMMD;
 854       if ( access.doesFileExist("/content") )
 855         return repo::RepoType::YAST2;
 856
 857       // if it is a local url of type dir
 858       if ( (! media::MediaManager::downloads(url)) && ( url.getScheme() == "dir" ) )
 859       {
 860         Pathname path = Pathname(url.getPathName());
 861         if ( PathInfo(path).isDir() )
 862         {
 863           // allow empty dirs for now
 864           return repo::RepoType::RPMPLAINDIR;
 865         }
 866       }
 867     }
 868     catch ( const media::MediaException &e )
 869     {
 870       ZYPP_CAUGHT(e);
 871       RepoException enew("Error trying to read from " + url.asString());
 872       enew.remember(e);
 873       ZYPP_THROW(enew);
 874     }
 875     catch ( const Exception &e )
 876     {
 877       ZYPP_CAUGHT(e);
 878       Exception enew("Unknown error reading from " + url.asString());
 879       enew.remember(e);
 880       ZYPP_THROW(enew);
 881     }
 882
 883     return repo::RepoType::NONE;
 884   }
 885
 886   ////////////////////////////////////////////////////////////////////////////
 887
 888   void RepoManager::cleanCache( const RepoInfo &info,
 889                                 const ProgressData::ReceiverFnc & progressrcv )
 890   {
 891     ProgressData progress(100);
 892     progress.sendTo(progressrcv);
 893     progress.toMin();
 894
 895     filesystem::recursive_rmdir(solv_path_for_repoinfo(_pimpl->options, info));
 896
 897     progress.toMax();
 898   }
 899
 900   ////////////////////////////////////////////////////////////////////////////
 901
 902   bool RepoManager::isCached( const RepoInfo &info ) const
 903   {
 904     return PathInfo(solv_path_for_repoinfo( _pimpl->options, info ) / "solv").isExist();
 905   }
 906
 907   RepoStatus RepoManager::cacheStatus( const RepoInfo &info ) const
 908   {
 909
 910     Pathname cookiefile = solv_path_for_repoinfo(_pimpl->options, info) / "cookie";
 911
 912     return RepoStatus::fromCookieFile(cookiefile);
 913   }
 914
 915   void RepoManager::setCacheStatus( const RepoInfo &info, const RepoStatus &status )
 916   {
 917     Pathname base = solv_path_for_repoinfo(_pimpl->options, info);
 918     filesystem::assert_dir(base);
 919     Pathname cookiefile = base / "cookie";
 920
 921     status.saveToCookieFile(cookiefile);
 922   }
 923
 924   void RepoManager::loadFromCache( const RepoInfo & info,
 925                                    const ProgressData::ReceiverFnc & progressrcv )
 926   {
 927     assert_alias(info);
 928     Pathname solvfile = solv_path_for_repoinfo(_pimpl->options, info) / "solv";
 929
 930     if ( ! PathInfo(solvfile).isExist() )
 931       ZYPP_THROW(RepoNotCachedException(info));
 932
 933     try
 934     {
 935       sat::Pool::instance().addRepoSolv( solvfile, info );
 936     }
 937     catch ( const Exception & exp )
 938     {
 939       ZYPP_CAUGHT( exp );
 940       MIL << "Try to handle exception by rebuilding the solv-file" << endl;
 941       cleanCache( info, progressrcv );
 942       buildCache( info, BuildIfNeeded, progressrcv );
 943
 944       sat::Pool::instance().addRepoSolv( solvfile, info );
 945     }
 946   }
 947
 948   ////////////////////////////////////////////////////////////////////////////
 949
 950   /**
 951    * Generate a non existing filename in a directory, using a base
 952    * name. For example if a directory contains 3 files
 953    *
 954    * |-- bar
 955    * |-- foo
 956    * `-- moo
 957    *
 958    * If you try to generate a unique filename for this directory,
 959    * based on "ruu" you will get "ruu", but if you use the base
 960    * "foo" you will get "foo_1"
 961    *
 962    * \param dir Directory where the file needs to be unique
 963    * \param basefilename string to base the filename on.
 964    */
 965   static Pathname generate_non_existing_name( const Pathname &dir,
 966                                               const std::string &basefilename )
 967   {
 968     string final_filename = basefilename;
 969     int counter = 1;
 970     while ( PathInfo(dir + final_filename).isExist() )
 971     {
 972       final_filename = basefilename + "_" + str::numstring(counter);
 973       counter++;
 974     }
 975     return dir + Pathname(final_filename);
 976   }
 977
 978   ////////////////////////////////////////////////////////////////////////////
 979
 980   /**
 981    * \short Generate a related filename from a repo info
 982    *
 983    * From a repo info, it will try to use the alias as a filename
 984    * escaping it if necessary. Other fallbacks can be added to
 985    * this function in case there is no way to use the alias
 986    */
 987   static std::string generate_filename( const RepoInfo &info )
 988   {
 989     std::string fnd="/";
 990     std::string rep="_";
 991     std::string filename = info.alias();
 992     // replace slashes with underscores
 993     size_t pos = filename.find(fnd);
 994     while(pos!=string::npos)
 995     {
 996       filename.replace(pos,fnd.length(),rep);
 997       pos = filename.find(fnd,pos+rep.length());
 998     }
 999     filename = Pathname(filename).extend(".repo").asString();
1000     MIL << "generating filename for repo [" << info.alias() << "] : '" << filename << "'" << endl;
1001     return filename;
1002   }
1003
1004
1005   ////////////////////////////////////////////////////////////////////////////
1006
1007   void RepoManager::addRepository( const RepoInfo &info,
1008                                    const ProgressData::ReceiverFnc & progressrcv )
1009   {
1010     assert_alias(info);
1011
1012     ProgressData progress(100);
1013     callback::SendReport<ProgressReport> report;
1014     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
1015     progress.name(str::form(_("Adding repository '%s'"), info.name().c_str()));
1016     progress.toMin();
1017
1018     std::list<RepoInfo> repos = knownRepositories();
1019     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1020           it != repos.end();
1021           ++it )
1022     {
1023       if ( info.alias() == (*it).alias() )
1024         ZYPP_THROW(RepoAlreadyExistsException(info));
1025     }
1026
1027     RepoInfo tosave = info;
1028
1029     // check the first url for now
1030     if ( _pimpl->options.probe )
1031     {
1032       DBG << "unknown repository type, probing" << endl;
1033
1034       RepoType probedtype;
1035       probedtype = probe(*tosave.baseUrlsBegin());
1036       if ( tosave.baseUrlsSize() > 0 )
1037       {
1038         if ( probedtype == RepoType::NONE )
1039           ZYPP_THROW(RepoUnknownTypeException());
1040         else
1041           tosave.setType(probedtype);
1042       }
1043     }
1044
1045     progress.set(50);
1046
1047     // assert the directory exists
1048     filesystem::assert_dir(_pimpl->options.knownReposPath);
1049
1050     Pathname repofile = generate_non_existing_name(_pimpl->options.knownReposPath,
1051                                                     generate_filename(tosave));
1052     // now we have a filename that does not exists
1053     MIL << "Saving repo in " << repofile << endl;
1054
1055     std::ofstream file(repofile.c_str());
1056     if (!file) {
1057       ZYPP_THROW (Exception( "Can't open " + repofile.asString() ) );
1058     }
1059
1060     tosave.dumpRepoOn(file);
1061     progress.toMax();
1062     MIL << "done" << endl;
1063   }
1064
1065   void RepoManager::addRepositories( const Url &url,
1066                                      const ProgressData::ReceiverFnc & progressrcv )
1067   {
1068     std::list<RepoInfo> knownrepos = knownRepositories();
1069     std::list<RepoInfo> repos = readRepoFile(url);
1070     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1071           it != repos.end();
1072           ++it )
1073     {
1074       // look if the alias is in the known repos.
1075       for ( std::list<RepoInfo>::const_iterator kit = knownrepos.begin();
1076           kit != knownrepos.end();
1077           ++kit )
1078       {
1079         if ( (*it).alias() == (*kit).alias() )
1080         {
1081           ERR << "To be added repo " << (*it).alias() << " conflicts with existing repo " << (*kit).alias() << endl;
1082           ZYPP_THROW(RepoAlreadyExistsException(*it));
1083         }
1084       }
1085     }
1086
1087     string filename = Pathname(url.getPathName()).basename();
1088
1089     if ( filename == Pathname() )
1090       ZYPP_THROW(RepoException("Invalid repo file name at " + url.asString() ));
1091
1092     // assert the directory exists
1093     filesystem::assert_dir(_pimpl->options.knownReposPath);
1094
1095     Pathname repofile = generate_non_existing_name(_pimpl->options.knownReposPath, filename);
1096     // now we have a filename that does not exists
1097     MIL << "Saving " << repos.size() << " repo" << ( repos.size() ? "s" : "" ) << " in " << repofile << endl;
1098
1099     std::ofstream file(repofile.c_str());
1100     if (!file) {
1101       ZYPP_THROW (Exception( "Can't open " + repofile.asString() ) );
1102     }
1103
1104     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1105           it != repos.end();
1106           ++it )
1107     {
1108       MIL << "Saving " << (*it).alias() << endl;
1109       (*it).dumpRepoOn(file);
1110     }
1111     MIL << "done" << endl;
1112   }
1113
1114   ////////////////////////////////////////////////////////////////////////////
1115
1116   void RepoManager::removeRepository( const RepoInfo & info,
1117                                       const ProgressData::ReceiverFnc & progressrcv)
1118   {
1119     ProgressData progress;
1120     callback::SendReport<ProgressReport> report;
1121     progress.sendTo( ProgressReportAdaptor( progressrcv, report ) );
1122     progress.name(str::form(_("Removing repository '%s'"), info.name().c_str()));
1123
1124     MIL << "Going to delete repo " << info.alias() << endl;
1125
1126     std::list<RepoInfo> repos = knownRepositories();
1127     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1128           it != repos.end();
1129           ++it )
1130     {
1131       // they can be the same only if the provided is empty, that means
1132       // the provided repo has no alias
1133       // then skip
1134       if ( (!info.alias().empty()) && ( info.alias() != (*it).alias() ) )
1135         continue;
1136
1137       // TODO match by url
1138
1139       // we have a matcing repository, now we need to know
1140       // where it does come from.
1141       RepoInfo todelete = *it;
1142       if (todelete.filepath().empty())
1143       {
1144         ZYPP_THROW(RepoException("Can't figure where the repo is stored"));
1145       }
1146       else
1147       {
1148         // figure how many repos are there in the file:
1149         std::list<RepoInfo> filerepos = repositories_in_file(todelete.filepath());
1150         if ( (filerepos.size() == 1) && ( filerepos.front().alias() == todelete.alias() ) )
1151         {
1152           // easy, only this one, just delete the file
1153           if ( filesystem::unlink(todelete.filepath()) != 0 )
1154           {
1155             ZYPP_THROW(RepoException("Can't delete " + todelete.filepath().asString()));
1156           }
1157           MIL << todelete.alias() << " sucessfully deleted." << endl;
1158         }
1159         else
1160         {
1161           // there are more repos in the same file
1162           // write them back except the deleted one.
1163           //TmpFile tmp;
1164           //std::ofstream file(tmp.path().c_str());
1165
1166           // assert the directory exists
1167           filesystem::assert_dir(todelete.filepath().dirname());
1168
1169           std::ofstream file(todelete.filepath().c_str());
1170           if (!file) {
1171             //ZYPP_THROW (Exception( "Can't open " + tmp.path().asString() ) );
1172             ZYPP_THROW (Exception( "Can't open " + todelete.filepath().asString() ) );
1173           }
1174           for ( std::list<RepoInfo>::const_iterator fit = filerepos.begin();
1175                 fit != filerepos.end();
1176                 ++fit )
1177           {
1178             if ( (*fit).alias() != todelete.alias() )
1179               (*fit).dumpRepoOn(file);
1180           }
1181         }
1182
1183         CombinedProgressData subprogrcv(progress, 70);
1184         CombinedProgressData cleansubprogrcv(progress, 30);
1185         // now delete it from cache
1186         if ( isCached(todelete) )
1187           cleanCache( todelete, subprogrcv);
1188         // now delete metadata (#301037)
1189         cleanMetadata( todelete, cleansubprogrcv);
1190         MIL << todelete.alias() << " sucessfully deleted." << endl;
1191         return;
1192       } // else filepath is empty
1193
1194     }
1195     // should not be reached on a sucess workflow
1196     ZYPP_THROW(RepoNotFoundException(info));
1197   }
1198
1199   ////////////////////////////////////////////////////////////////////////////
1200
1201   void RepoManager::modifyRepository( const std::string &alias,
1202                                       const RepoInfo & newinfo,
1203                                       const ProgressData::ReceiverFnc & progressrcv )
1204   {
1205     RepoInfo toedit = getRepositoryInfo(alias);
1206
1207     // check if the new alias already exists when renaming the repo
1208     if (alias != newinfo.alias())
1209     {
1210       std::list<RepoInfo> repos = knownRepositories();
1211       for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1212             it != repos.end();
1213             ++it )
1214       {
1215         if ( newinfo.alias() == (*it).alias() )
1216           ZYPP_THROW(RepoAlreadyExistsException(newinfo));
1217       }
1218     }
1219
1220     if (toedit.filepath().empty())
1221     {
1222       ZYPP_THROW(RepoException("Can't figure where the repo is stored"));
1223     }
1224     else
1225     {
1226       // figure how many repos are there in the file:
1227       std::list<RepoInfo> filerepos = repositories_in_file(toedit.filepath());
1228
1229       // there are more repos in the same file
1230       // write them back except the deleted one.
1231       //TmpFile tmp;
1232       //std::ofstream file(tmp.path().c_str());
1233
1234       // assert the directory exists
1235       filesystem::assert_dir(toedit.filepath().dirname());
1236
1237       std::ofstream file(toedit.filepath().c_str());
1238       if (!file) {
1239         //ZYPP_THROW (Exception( "Can't open " + tmp.path().asString() ) );
1240         ZYPP_THROW (Exception( "Can't open " + toedit.filepath().asString() ) );
1241       }
1242       for ( std::list<RepoInfo>::const_iterator fit = filerepos.begin();
1243             fit != filerepos.end();
1244             ++fit )
1245       {
1246           // if the alias is different, dump the original
1247           // if it is the same, dump the provided one
1248           if ( (*fit).alias() != toedit.alias() )
1249             (*fit).dumpRepoOn(file);
1250           else
1251             newinfo.dumpRepoOn(file);
1252       }
1253     }
1254   }
1255
1256   ////////////////////////////////////////////////////////////////////////////
1257
1258   RepoInfo RepoManager::getRepositoryInfo( const std::string &alias,
1259                                            const ProgressData::ReceiverFnc & progressrcv )
1260   {
1261     std::list<RepoInfo> repos = knownRepositories();
1262     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1263           it != repos.end();
1264           ++it )
1265     {
1266       if ( (*it).alias() == alias )
1267         return *it;
1268     }
1269     RepoInfo info;
1270     info.setAlias(info.alias());
1271     ZYPP_THROW(RepoNotFoundException(info));
1272   }
1273
1274   ////////////////////////////////////////////////////////////////////////////
1275
1276   RepoInfo RepoManager::getRepositoryInfo( const Url & url,
1277                                            const url::ViewOption & urlview,
1278                                            const ProgressData::ReceiverFnc & progressrcv )
1279   {
1280     std::list<RepoInfo> repos = knownRepositories();
1281     for ( std::list<RepoInfo>::const_iterator it = repos.begin();
1282           it != repos.end();
1283           ++it )
1284     {
1285       for(RepoInfo::urls_const_iterator urlit = (*it).baseUrlsBegin();
1286           urlit != (*it).baseUrlsEnd();
1287           ++urlit)
1288       {
1289         if ((*urlit).asString(urlview) == url.asString(urlview))
1290           return *it;
1291       }
1292     }
1293     RepoInfo info;
1294     info.setAlias(info.alias());
1295     info.setBaseUrl(url);
1296     ZYPP_THROW(RepoNotFoundException(info));
1297   }
1298
1299   ////////////////////////////////////////////////////////////////////////////
1300
1301   std::ostream & operator<<( std::ostream & str, const RepoManager & obj )
1302   {
1303     return str << *obj._pimpl;
1304   }
1305
1306   /////////////////////////////////////////////////////////////////
1307 } // namespace zypp
1308 ///////////////////////////////////////////////////////////////////