plugins/backend/zypppkgmgr.py

   1 #!/usr/bin/python -tt
   2 #
   3 # Copyright (c) 2010, 2011 Intel, Inc.
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by the Free
   7 # Software Foundation; version 2 of the License
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  11 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 # for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along
  15 # with this program; if not, write to the Free Software Foundation, Inc., 59
  16 # Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 import os
  19 import shutil
  20 import urlparse
  21 import rpm
  22 from mic.utils import runner, fs_related
  23
  24 import zypp
  25 if not hasattr(zypp, 'PoolQuery') or not hasattr(zypp.RepoManager, 'loadSolvFile'):
  26     raise ImportError("python-zypp in host system cannot support PoolQuery or loadSolvFile interface, "
  27                       "please update it to enhanced version which can be found in repo.meego.com/tools")
  28
  29 from mic import msger
  30 from mic.kickstart import ksparser
  31 from mic.utils import rpmmisc
  32 from mic.utils.proxy import get_proxy_for
  33 from mic.utils.errors import CreatorError
  34 from mic.imager.baseimager import BaseImageCreator
  35
  36 class RepositoryStub:
  37     def __init__(self):
  38         self.name = None
  39         self.baseurl = []
  40         self.mirrorlist = None
  41         self.proxy = None
  42         self.proxy_username = None
  43         self.proxy_password = None
  44
  45         self.enabled = True
  46         self.autorefresh = True
  47         self.keeppackages = True
  48         self.priority = None
  49
  50 class RepoError(CreatorError):
  51     pass
  52
  53 class RpmError(CreatorError):
  54     pass
  55
  56 from mic.pluginbase import BackendPlugin
  57 class Zypp(BackendPlugin):
  58     name = 'zypp'
  59
  60     def __init__(self, target_arch, instroot, cachedir):
  61         self.cachedir = cachedir
  62         self.instroot  = instroot
  63         self.target_arch = target_arch
  64
  65         self.__pkgs_license = {}
  66         self.__pkgs_content = {}
  67         self.repos = []
  68         self.to_deselect = []
  69         self.localpkgs = {}
  70         self.repo_manager = None
  71         self.repo_manager_options = None
  72         self.Z = None
  73         self.ts = None
  74         self.probFilterFlags = []
  75         self.incpkgs = {}
  76         self.excpkgs = {}
  77
  78         self.has_prov_query = True
  79
  80     def doFileLogSetup(self, uid, logfile):
  81         # don't do the file log for the livecd as it can lead to open fds
  82         # being left and an inability to clean up after ourself
  83         pass
  84
  85     def closeRpmDB(self):
  86         pass
  87
  88     def close(self):
  89         self.closeRpmDB()
  90         if not os.path.exists("/etc/fedora-release") and not os.path.exists("/etc/meego-release"):
  91             for i in range(3, os.sysconf("SC_OPEN_MAX")):
  92                 try:
  93                     os.close(i)
  94                 except:
  95                     pass
  96         if self.ts:
  97             self.ts.closeDB()
  98             self.ts = None
  99
 100     def __del__(self):
 101         self.close()
 102
 103     def _cleanupRpmdbLocks(self, installroot):
 104         # cleans up temporary files left by bdb so that differing
 105         # versions of rpm don't cause problems
 106         import glob
 107         for f in glob.glob(installroot + "/var/lib/rpm/__db*"):
 108             os.unlink(f)
 109
 110     def setup(self, confpath=None, instroot=None):
 111         if not self.instroot:
 112             self.instroot = instroot
 113         self._cleanupRpmdbLocks(self.instroot)
 114
 115     def whatObsolete(self, pkg):
 116         query = zypp.PoolQuery()
 117         query.addKind(zypp.ResKind.package)
 118         query.addAttribute(zypp.SolvAttr.obsoletes, pkg)
 119         query.setMatchExact()
 120         for pi in query.queryResults(self.Z.pool()):
 121             return pi
 122         return None
 123
 124     def _splitPkgString(self, pkg):
 125         sp = pkg.rsplit(".",1)
 126         name = sp[0]
 127         arch = None
 128         if len(sp) == 2:
 129             arch = sp[1]
 130             sysarch = zypp.Arch(self.target_arch)
 131             if not zypp.Arch(arch).compatible_with (sysarch):
 132                 arch = None
 133                 name = ".".join(sp)
 134         return name, arch
 135
 136     def selectPackage(self, pkg):
 137         """ Select a given package or package pattern, can be specified with name.arch or name* or *name """
 138         if not self.Z:
 139             self.__initialize_zypp()
 140
 141         def markPoolItem(obs, pi):
 142             if obs == None:
 143                 pi.status().setToBeInstalled (zypp.ResStatus.USER)
 144             else:
 145                 obs.status().setToBeInstalled (zypp.ResStatus.USER)
 146
 147         found = False
 148         startx = pkg.startswith("*")
 149         endx = pkg.endswith("*")
 150         ispattern = startx or endx
 151         name, arch = self._splitPkgString(pkg)
 152
 153         q = zypp.PoolQuery()
 154         q.addKind(zypp.ResKind.package)
 155         if ispattern:
 156             if startx and not endx:
 157                 pattern = '%s$' % (pkg[1:])
 158             if endx and not startx:
 159                 pattern = '^%s' % (pkg[0:-1])
 160             if endx and startx:
 161                 pattern = '%s' % (pkg[1:-1])
 162             q.setMatchRegex()
 163             q.addAttribute(zypp.SolvAttr.name,pattern)
 164         elif arch:
 165             q.setMatchExact()
 166             q.addAttribute(zypp.SolvAttr.name,name)
 167         else:
 168             q.setMatchExact()
 169             q.addAttribute(zypp.SolvAttr.name,pkg)
 170
 171         for item in sorted(q.queryResults(self.Z.pool()), key=lambda item: str(item.edition()), reverse=True):
 172             if item.name() in self.excpkgs.keys() and self.excpkgs[item.name()] == item.repoInfo().name():
 173                 continue
 174             if item.name() in self.incpkgs.keys() and self.incpkgs[item.name()] != item.repoInfo().name():
 175                 continue
 176             found = True
 177             obspkg = self.whatObsolete(item.name())
 178             if arch:
 179                 if arch == str(item.arch()):
 180                     item.status().setToBeInstalled (zypp.ResStatus.USER)
 181             else:
 182                 markPoolItem(obspkg, item)
 183             if not ispattern:
 184                 break
 185         # Can't match using package name, then search from packge provides infomation
 186         if found == False and not ispattern:
 187             q.addAttribute(zypp.SolvAttr.provides, pkg)
 188             q.addAttribute(zypp.SolvAttr.name,'')
 189             for item in sorted(q.queryResults(self.Z.pool()), key=lambda item: str(item.edition()), reverse=True):
 190                 if item.name() in self.excpkgs.keys() and self.excpkgs[item.name()] == item.repoInfo().name():
 191                     continue
 192                 if item.name() in self.incpkgs.keys() and self.incpkgs[item.name()] != item.repoInfo().name():
 193                     continue
 194                 found = True
 195                 obspkg = self.whatObsolete(item.name())
 196                 markPoolItem(obspkg, item)
 197                 break
 198         if found:
 199             return None
 200         else:
 201             raise CreatorError("Unable to find package: %s" % (pkg,))
 202
 203     def inDeselectPackages(self, item):
 204         """check if specified pacakges are in the list of inDeselectPackages"""
 205         name = item.name()
 206         for pkg in self.to_deselect:
 207             startx = pkg.startswith("*")
 208             endx = pkg.endswith("*")
 209             ispattern = startx or endx
 210             pkgname, pkgarch = self._splitPkgString(pkg)
 211             if not ispattern:
 212                 if pkgarch:
 213                     if name == pkgname and str(item.arch()) == pkgarch:
 214                         return True;
 215                 else:
 216                     if name == pkgname:
 217                         return True;
 218             else:
 219                 if startx and name.endswith(pkg[1:]):
 220                         return True;
 221                 if endx and name.startswith(pkg[:-1]):
 222                         return True;
 223         return False;
 224
 225     def deselectPackage(self, pkg):
 226         """collect packages should not be installed"""
 227         self.to_deselect.append(pkg)
 228
 229     def selectGroup(self, grp, include = ksparser.GROUP_DEFAULT):
 230         if not self.Z:
 231             self.__initialize_zypp()
 232         found = False
 233         q=zypp.PoolQuery()
 234         q.addKind(zypp.ResKind.pattern)
 235         for item in q.queryResults(self.Z.pool()):
 236             summary = "%s" % item.summary()
 237             name = "%s" % item.name()
 238             if name == grp or summary == grp:
 239                 found = True
 240                 item.status().setToBeInstalled (zypp.ResStatus.USER)
 241                 break
 242
 243         if found:
 244             if include == ksparser.GROUP_REQUIRED:
 245                 map(lambda p: self.deselectPackage(p), grp.default_packages.keys())
 246             return None
 247         else:
 248             raise CreatorError("Unable to find pattern: %s" % (grp,))
 249
 250     def addRepository(self, name, url = None, mirrorlist = None, proxy = None,
 251                       proxy_username = None, proxy_password = None,
 252                       inc = None, exc = None, ssl_verify = True, cost=None,
 253                       priority=None):
 254         # TODO: Handle cost attribute for repos
 255         if not self.repo_manager:
 256             self.__initialize_repo_manager()
 257
 258         repo = RepositoryStub()
 259         repo.name = name
 260         repo.id = name
 261         repo.proxy = proxy
 262         repo.proxy_username = proxy_username
 263         repo.proxy_password = proxy_password
 264         repo.ssl_verify = ssl_verify
 265         repo.baseurl.append(url)
 266         if inc:
 267             for pkg in inc:
 268                 self.incpkgs[pkg] = name
 269         if exc:
 270             for pkg in exc:
 271                 self.excpkgs[pkg] = name
 272
 273         # check LICENSE files
 274         if not rpmmisc.checkRepositoryEULA(name, repo):
 275             msger.warning('skip repo:%s for failed EULA confirmation' % name)
 276             return None
 277
 278         if mirrorlist:
 279             repo.mirrorlist = mirrorlist
 280
 281         # Enable gpg check for verifying corrupt packages
 282         repo.gpgcheck = 1
 283         if priority:
 284             repo.priority = priority
 285         self.repos.append(repo)
 286
 287         try:
 288             repo_info = zypp.RepoInfo()
 289             repo_info.setAlias(repo.name)
 290             repo_info.setName(repo.name)
 291             repo_info.setEnabled(repo.enabled)
 292             repo_info.setAutorefresh(repo.autorefresh)
 293             repo_info.setKeepPackages(repo.keeppackages)
 294             baseurl = zypp.Url(repo.baseurl[0])
 295             if not ssl_verify:
 296                 baseurl.setQueryParam("ssl_verify", "no")
 297             if proxy:
 298                 (scheme, host, path, parm, query, frag) = urlparse.urlparse(proxy)
 299                 proxyinfo = host.split(":")
 300                 host = proxyinfo[0]
 301                 port = "80"
 302                 if len(proxyinfo) > 1:
 303                     port = proxyinfo[1]
 304                 if proxy.startswith("socks") and len(proxy.rsplit(':', 1)) == 2:
 305                     host = proxy.rsplit(':', 1)[0]
 306                     port = proxy.rsplit(':', 1)[1]
 307                 baseurl.setQueryParam ("proxy", host)
 308                 baseurl.setQueryParam ("proxyport", port)
 309             repo_info.addBaseUrl(baseurl)
 310             if repo.priority:
 311                 repo_info.setPriority(repo.priority)
 312             self.repo_manager.addRepository(repo_info)
 313             self.__build_repo_cache(name)
 314         except RuntimeError, e:
 315             raise CreatorError(str(e))
 316
 317         msger.verbose('repo: %s was added' % name)
 318         return repo
 319
 320     def installHasFile(self, file):
 321         return False
 322
 323     def runInstall(self, checksize = 0):
 324         os.environ["HOME"] = "/"
 325         self.buildTransaction()
 326
 327         todo = zypp.GetResolvablesToInsDel(self.Z.pool())
 328         installed_pkgs = todo._toInstall
 329         dlpkgs = []
 330         for item in installed_pkgs:
 331             if not zypp.isKindPattern(item) and not self.inDeselectPackages(item):
 332                 dlpkgs.append(item)
 333
 334         # record all pkg and the content
 335         localpkgs = self.localpkgs.keys()
 336         for pkg in dlpkgs:
 337             license = ''
 338             if pkg.name() in localpkgs:
 339                 hdr = rpmmisc.readRpmHeader(self.ts, self.localpkgs[pkg.name()])
 340                 pkg_long_name = "%s-%s-%s.%s.rpm" % (hdr['name'], hdr['version'], hdr['release'], hdr['arch'])
 341                 license = hdr['license']
 342             else:
 343                 pkg_long_name = "%s-%s.%s.rpm" % (pkg.name(), pkg.edition(), pkg.arch())
 344                 package = zypp.asKindPackage(pkg)
 345                 license = package.license()
 346             self.__pkgs_content[pkg_long_name] = {} #TBD: to get file list
 347             if license in self.__pkgs_license.keys():
 348                 self.__pkgs_license[license].append(pkg_long_name)
 349             else:
 350                 self.__pkgs_license[license] = [pkg_long_name]
 351
 352         total_count = len(dlpkgs)
 353         cached_count = 0
 354         download_total_size = 0L
 355         localpkgs = self.localpkgs.keys()
 356         msger.info("Checking packages cache and packages integrity ...")
 357         for po in dlpkgs:
 358             """ Check if it is cached locally """
 359             if po.name() in localpkgs:
 360                 cached_count += 1
 361             else:
 362                 local = self.getLocalPkgPath(po)
 363                 if os.path.exists(local):
 364                     if self.checkPkg(local) != 0:
 365                         download_total_size += po.downloadSize()
 366                         os.unlink(local)
 367                     else:
 368                         cached_count += 1
 369
 370         # record the total size of installed pkgs
 371         install_total_size = sum(map(lambda x: int(x.installSize()), dlpkgs))
 372         # check needed size before actually download and install
 373         if checksize and download_total_size + install_total_size > checksize:
 374             raise CreatorError("No enough space used for downloading and installing")
 375
 376         download_count =  total_count - cached_count
 377         msger.info("%d packages to be installed, %d packages gotten from cache, %d packages to be downloaded" % (total_count, cached_count, download_count))
 378         try:
 379             if download_count > 0:
 380                 msger.info("Downloading packages ...")
 381             self.downloadPkgs(dlpkgs, download_count)
 382             self.installPkgs(dlpkgs)
 383
 384         except RepoError, e:
 385             raise CreatorError("Unable to download from repo : %s" % (e,))
 386         except RpmError, e:
 387             raise CreatorError("Unable to install: %s" % (e,))
 388
 389     def getAllContent(self):
 390         return self.__pkgs_content
 391
 392     def getPkgsLicense(self):
 393         return self.__pkgs_license
 394
 395     def __initialize_repo_manager(self):
 396         if self.repo_manager:
 397             return
 398
 399         """ Clean up repo metadata """
 400         shutil.rmtree(self.cachedir + "/etc", ignore_errors = True)
 401         shutil.rmtree(self.cachedir + "/solv", ignore_errors = True)
 402         shutil.rmtree(self.cachedir + "/raw", ignore_errors = True)
 403
 404         zypp.KeyRing.setDefaultAccept( zypp.KeyRing.ACCEPT_UNSIGNED_FILE
 405                                      | zypp.KeyRing.ACCEPT_VERIFICATION_FAILED
 406                                      | zypp.KeyRing.ACCEPT_UNKNOWNKEY
 407                                      | zypp.KeyRing.TRUST_KEY_TEMPORARILY
 408                                      )
 409         self.repo_manager_options = zypp.RepoManagerOptions(zypp.Pathname(self.instroot))
 410         self.repo_manager_options.knownReposPath = zypp.Pathname(self.cachedir + "/etc/zypp/repos.d")
 411         self.repo_manager_options.repoCachePath = zypp.Pathname(self.cachedir)
 412         self.repo_manager_options.repoRawCachePath = zypp.Pathname(self.cachedir + "/raw")
 413         self.repo_manager_options.repoSolvCachePath = zypp.Pathname(self.cachedir + "/solv")
 414         self.repo_manager_options.repoPackagesCachePath = zypp.Pathname(self.cachedir + "/packages")
 415
 416         self.repo_manager = zypp.RepoManager(self.repo_manager_options)
 417
 418     def __build_repo_cache(self, name):
 419         repo = self.repo_manager.getRepositoryInfo(name)
 420         if self.repo_manager.isCached(repo) or not repo.enabled():
 421             return
 422         self.repo_manager.buildCache(repo, zypp.RepoManager.BuildIfNeeded)
 423
 424     def __initialize_zypp(self):
 425         if self.Z:
 426             return
 427
 428         zconfig = zypp.ZConfig_instance()
 429
 430         """ Set system architecture """
 431         if self.target_arch:
 432             zconfig.setSystemArchitecture(zypp.Arch(self.target_arch))
 433
 434         msger.info("zypp architecture is <%s>" % zconfig.systemArchitecture())
 435
 436         """ repoPackagesCachePath is corrected by this """
 437         self.repo_manager = zypp.RepoManager(self.repo_manager_options)
 438         repos = self.repo_manager.knownRepositories()
 439         for repo in repos:
 440             if not repo.enabled():
 441                 continue
 442             self.repo_manager.loadFromCache(repo)
 443
 444         self.Z = zypp.ZYppFactory_instance().getZYpp()
 445         self.Z.initializeTarget(zypp.Pathname(self.instroot))
 446         self.Z.target().load()
 447
 448
 449     def buildTransaction(self):
 450         if not self.Z.resolver().resolvePool():
 451             msger.warning("Problem count: %d" % len(self.Z.resolver().problems()))
 452             for problem in self.Z.resolver().problems():
 453                 msger.warning("Problem: %s, %s" % (problem.description().decode("utf-8"), problem.details().decode("utf-8")))
 454
 455     def getLocalPkgPath(self, po):
 456         repoinfo = po.repoInfo()
 457         cacheroot = repoinfo.packagesPath()
 458         location= zypp.asKindPackage(po).location()
 459         rpmpath = str(location.filename())
 460         pkgpath = "%s/%s" % (cacheroot, rpmpath)
 461         return pkgpath
 462
 463     def installLocal(self, pkg, po=None, updateonly=False):
 464         if not self.ts:
 465             self.__initialize_transaction()
 466         solvfile = "%s/.solv" % (self.cachedir)
 467         rc, out = runner.runtool([fs_related.find_binary_path("rpms2solv"), pkg])
 468         if rc == 0:
 469             f = open(solvfile, "w+")
 470             f.write(out)
 471             f.close()
 472             warnmsg = self.repo_manager.loadSolvFile(solvfile , os.path.basename(pkg))
 473             if warnmsg:
 474                 msger.warning(warnmsg)
 475             os.unlink(solvfile)
 476         else:
 477             msger.warning('Can not get %s solv data.' % pkg)
 478         hdr = rpmmisc.readRpmHeader(self.ts, pkg)
 479         arch = zypp.Arch(hdr['arch'])
 480         sysarch = zypp.Arch(self.target_arch)
 481         if arch.compatible_with (sysarch):
 482             pkgname = hdr['name']
 483             self.localpkgs[pkgname] = pkg
 484             self.selectPackage(pkgname)
 485             msger.info("Marking %s to be installed" % (pkg))
 486         else:
 487             msger.warning ("Cannot add package %s to transaction. Not a compatible architecture: %s" % (pkg, hdr['arch']))
 488
 489     def downloadPkgs(self, package_objects, count):
 490         localpkgs = self.localpkgs.keys()
 491         progress_obj = rpmmisc.TextProgress(count)
 492         for po in package_objects:
 493             if po.name() in localpkgs:
 494                 continue
 495             filename = self.getLocalPkgPath(po)
 496             if os.path.exists(filename):
 497                 if self.checkPkg(filename) == 0:
 498                     continue
 499             dirn = os.path.dirname(filename)
 500             if not os.path.exists(dirn):
 501                 os.makedirs(dirn)
 502             baseurl = str(po.repoInfo().baseUrls()[0])
 503             index = baseurl.find("?")
 504             if index > -1:
 505                 baseurl = baseurl[:index]
 506             proxy = self.get_proxy(po.repoInfo())
 507             proxies = {}
 508             if proxy:
 509                 proxies = {str(proxy.split(":")[0]):str(proxy)}
 510
 511             location = zypp.asKindPackage(po).location()
 512             location = str(location.filename())
 513             if location.startswith("./"):
 514                 location = location[2:]
 515             url = baseurl + "/%s" % location
 516             try:
 517                 filename = rpmmisc.myurlgrab(url, filename, proxies, progress_obj)
 518             except CreatorError:
 519                 self.close()
 520                 raise
 521
 522     def installPkgs(self, package_objects):
 523         if not self.ts:
 524             self.__initialize_transaction()
 525
 526         """ Set filters """
 527         probfilter = 0
 528         for flag in self.probFilterFlags:
 529             probfilter |= flag
 530         self.ts.setProbFilter(probfilter)
 531
 532         localpkgs = self.localpkgs.keys()
 533         for po in package_objects:
 534             pkgname = po.name()
 535             if pkgname in localpkgs:
 536                 rpmpath = self.localpkgs[pkgname]
 537             else:
 538                 rpmpath = self.getLocalPkgPath(po)
 539             if not os.path.exists(rpmpath):
 540                 """ Maybe it is a local repo """
 541                 baseurl = str(po.repoInfo().baseUrls()[0])
 542                 baseurl = baseurl.strip()
 543                 location = zypp.asKindPackage(po).location()
 544                 location = str(location.filename())
 545                 if baseurl.startswith("file:/"):
 546                     rpmpath = baseurl[5:] + "/%s" % (location)
 547             if not os.path.exists(rpmpath):
 548                 raise RpmError("Error: %s doesn't exist" % rpmpath)
 549             h = rpmmisc.readRpmHeader(self.ts, rpmpath)
 550             self.ts.addInstall(h, rpmpath, 'u')
 551
 552         unresolved_dependencies = self.ts.check()
 553         if not unresolved_dependencies:
 554             self.ts.order()
 555             cb = rpmmisc.RPMInstallCallback(self.ts)
 556             installlogfile = "%s/__catched_stderr.buf" % (self.instroot)
 557             msger.enable_logstderr(installlogfile)
 558             errors = self.ts.run(cb.callback, '')
 559             if errors is None:
 560                 pass
 561             elif len(errors) == 0:
 562                 msger.warning('scriptlet or other non-fatal errors occurred during transaction.')
 563             else:
 564                 for e in errors:
 565                     msger.warning(e[0])
 566                 msger.error('Could not run transaction.')
 567             msger.disable_logstderr()
 568
 569             self.ts.closeDB()
 570             self.ts = None
 571         else:
 572             for pkg, need, needflags, sense, key in unresolved_dependencies:
 573                 package = '-'.join(pkg)
 574                 if needflags == rpm.RPMSENSE_LESS:
 575                     deppkg = ' < '.join(need)
 576                 elif needflags == rpm.RPMSENSE_EQUAL:
 577                     deppkg = ' = '.join(need)
 578                 elif needflags == rpm.RPMSENSE_GREATER:
 579                     deppkg = ' > '.join(need)
 580                 else:
 581                     deppkg = '-'.join(need)
 582
 583                 if sense == rpm.RPMDEP_SENSE_REQUIRES:
 584                     msger.warning ("[%s] Requires [%s], which is not provided" % (package, deppkg))
 585                 elif sense == rpm.RPMDEP_SENSE_CONFLICTS:
 586                     msger.warning ("[%s] Conflicts with [%s]" % (package, deppkg))
 587
 588             raise RepoError("Unresolved dependencies, transaction failed.")
 589
 590     def __initialize_transaction(self):
 591         if not self.ts:
 592             self.ts = rpm.TransactionSet(self.instroot)
 593             # Set to not verify DSA signatures.
 594             self.ts.setVSFlags(rpm._RPMVSF_NOSIGNATURES|rpm._RPMVSF_NODIGESTS)
 595
 596     def checkPkg(self, pkg):
 597         ret = 1
 598         if not os.path.exists(pkg):
 599             return ret
 600         ret = rpmmisc.checkRpmIntegrity('rpm', pkg)
 601         if ret != 0:
 602             msger.warning("package %s is damaged: %s" % (os.path.basename(pkg), pkg))
 603
 604         return ret
 605
 606     def _add_prob_flags(self, *flags):
 607         for flag in flags:
 608            if flag not in self.probFilterFlags:
 609                self.probFilterFlags.append(flag)
 610
 611     def get_proxy(self, repoinfo):
 612         proxy = None
 613         reponame = "%s" % repoinfo.name()
 614         for repo in self.repos:
 615             if repo.name == reponame:
 616                 proxy = repo.proxy
 617                 break
 618
 619         if proxy:
 620             return proxy
 621         else:
 622             repourl = str(repoinfo.baseUrls()[0])
 623             return get_proxy_for(repourl)