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
  23 import zypp
  24 if not hasattr(zypp, 'PoolQuery') or \
  25    not hasattr(zypp.RepoManager, 'loadSolvFile'):
  26     raise ImportError("python-zypp in host system cannot support PoolQuery or "
  27                       "loadSolvFile interface, please update it to enhanced "
  28                       "version which can be found in repo.meego.com/tools")
  29
  30 from mic import msger
  31 from mic.kickstart import ksparser
  32 from mic.utils import misc, rpmmisc, runner, fs_related
  33 from mic.utils.proxy import get_proxy_for
  34 from mic.utils.errors import CreatorError
  35 from mic.imager.baseimager import BaseImageCreator
  36
  37 class RepositoryStub:
  38     def __init__(self):
  39         self.name = None
  40         self.baseurl = []
  41         self.mirrorlist = None
  42         self.proxy = None
  43         self.proxy_username = None
  44         self.proxy_password = None
  45
  46         self.enabled = True
  47         self.autorefresh = True
  48         self.keeppackages = True
  49         self.priority = None
  50
  51 class RepoError(CreatorError):
  52     pass
  53
  54 class RpmError(CreatorError):
  55     pass
  56
  57 from mic.pluginbase import BackendPlugin
  58 class Zypp(BackendPlugin):
  59     name = 'zypp'
  60
  61     def __init__(self, target_arch, instroot, cachedir):
  62         self.cachedir = cachedir
  63         self.instroot  = instroot
  64         self.target_arch = target_arch
  65
  66         self.__pkgs_license = {}
  67         self.__pkgs_content = {}
  68         self.repos = []
  69         self.to_deselect = []
  70         self.localpkgs = {}
  71         self.repo_manager = None
  72         self.repo_manager_options = None
  73         self.Z = None
  74         self.ts = None
  75         self.probFilterFlags = []
  76         self.incpkgs = {}
  77         self.excpkgs = {}
  78
  79         self.has_prov_query = True
  80
  81     def doFileLogSetup(self, uid, logfile):
  82         # don't do the file log for the livecd as it can lead to open fds
  83         # being left and an inability to clean up after ourself
  84         pass
  85
  86     def closeRpmDB(self):
  87         pass
  88
  89     def close(self):
  90         if self.ts:
  91             self.ts.closeDB()
  92             self.ts = None
  93
  94         self.closeRpmDB()
  95
  96         if not os.path.exists("/etc/fedora-release") and \
  97            not os.path.exists("/etc/meego-release"):
  98             for i in range(3, os.sysconf("SC_OPEN_MAX")):
  99                 try:
 100                     os.close(i)
 101                 except:
 102                     pass
 103
 104     def __del__(self):
 105         self.close()
 106
 107     def _cleanupRpmdbLocks(self, installroot):
 108         # cleans up temporary files left by bdb so that differing
 109         # versions of rpm don't cause problems
 110         import glob
 111         for f in glob.glob(installroot + "/var/lib/rpm/__db*"):
 112             os.unlink(f)
 113
 114     def setup(self):
 115         self._cleanupRpmdbLocks(self.instroot)
 116
 117     def whatObsolete(self, pkg):
 118         query = zypp.PoolQuery()
 119         query.addKind(zypp.ResKind.package)
 120         query.addAttribute(zypp.SolvAttr.obsoletes, pkg)
 121         query.setMatchExact()
 122         for pi in query.queryResults(self.Z.pool()):
 123             return pi
 124         return None
 125
 126     def _splitPkgString(self, pkg):
 127         sp = pkg.rsplit(".",1)
 128         name = sp[0]
 129         arch = None
 130         if len(sp) == 2:
 131             arch = sp[1]
 132             sysarch = zypp.Arch(self.target_arch)
 133             if not zypp.Arch(arch).compatible_with (sysarch):
 134                 arch = None
 135                 name = ".".join(sp)
 136         return name, arch
 137
 138     def selectPackage(self, pkg):
 139         """Select a given package or package pattern, can be specified
 140         with name.arch or name* or *name
 141         """
 142
 143         if not self.Z:
 144             self.__initialize_zypp()
 145
 146         def markPoolItem(obs, pi):
 147             if obs == None:
 148                 pi.status().setToBeInstalled (zypp.ResStatus.USER)
 149             else:
 150                 obs.status().setToBeInstalled (zypp.ResStatus.USER)
 151
 152         found = False
 153         startx = pkg.startswith("*")
 154         endx = pkg.endswith("*")
 155         ispattern = startx or endx
 156         name, arch = self._splitPkgString(pkg)
 157
 158         q = zypp.PoolQuery()
 159         q.addKind(zypp.ResKind.package)
 160
 161         if ispattern:
 162             if startx and not endx:
 163                 pattern = '%s$' % (pkg[1:])
 164             if endx and not startx:
 165                 pattern = '^%s' % (pkg[0:-1])
 166             if endx and startx:
 167                 pattern = '%s' % (pkg[1:-1])
 168             q.setMatchRegex()
 169             q.addAttribute(zypp.SolvAttr.name,pattern)
 170
 171         elif arch:
 172             q.setMatchExact()
 173             q.addAttribute(zypp.SolvAttr.name,name)
 174
 175         else:
 176             q.setMatchExact()
 177             q.addAttribute(zypp.SolvAttr.name,pkg)
 178
 179         for item in sorted(
 180                         q.queryResults(self.Z.pool()),
 181                         key=lambda item: str(item.edition()),
 182                         reverse=True):
 183
 184             if item.name() in self.excpkgs.keys() and \
 185                self.excpkgs[item.name()] == item.repoInfo().name():
 186                 continue
 187             if item.name() in self.incpkgs.keys() and \
 188                self.incpkgs[item.name()] != item.repoInfo().name():
 189                 continue
 190
 191             found = True
 192             obspkg = self.whatObsolete(item.name())
 193             if arch:
 194                 if arch == str(item.arch()):
 195                     item.status().setToBeInstalled (zypp.ResStatus.USER)
 196             else:
 197                 markPoolItem(obspkg, item)
 198             if not ispattern:
 199                 break
 200
 201         # Can't match using package name, then search from packge
 202         # provides infomation
 203         if found == False and not ispattern:
 204             q.addAttribute(zypp.SolvAttr.provides, pkg)
 205             q.addAttribute(zypp.SolvAttr.name,'')
 206
 207             for item in sorted(
 208                             q.queryResults(self.Z.pool()),
 209                             key=lambda item: str(item.edition()),
 210                             reverse=True):
 211                 if item.name() in self.excpkgs.keys() and \
 212                    self.excpkgs[item.name()] == item.repoInfo().name():
 213                     continue
 214                 if item.name() in self.incpkgs.keys() and \
 215                    self.incpkgs[item.name()] != item.repoInfo().name():
 216                     continue
 217
 218                 found = True
 219                 obspkg = self.whatObsolete(item.name())
 220                 markPoolItem(obspkg, item)
 221                 break
 222
 223         if found:
 224             return None
 225         else:
 226             raise CreatorError("Unable to find package: %s" % (pkg,))
 227
 228     def inDeselectPackages(self, item):
 229         """check if specified pacakges are in the list of inDeselectPackages
 230         """
 231
 232         name = item.name()
 233         for pkg in self.to_deselect:
 234             startx = pkg.startswith("*")
 235             endx = pkg.endswith("*")
 236             ispattern = startx or endx
 237             pkgname, pkgarch = self._splitPkgString(pkg)
 238             if not ispattern:
 239                 if pkgarch:
 240                     if name == pkgname and str(item.arch()) == pkgarch:
 241                         return True;
 242                 else:
 243                     if name == pkgname:
 244                         return True;
 245             else:
 246                 if startx and name.endswith(pkg[1:]):
 247                         return True;
 248                 if endx and name.startswith(pkg[:-1]):
 249                         return True;
 250
 251         return False;
 252
 253     def deselectPackage(self, pkg):
 254         """collect packages should not be installed"""
 255         self.to_deselect.append(pkg)
 256
 257     def selectGroup(self, grp, include = ksparser.GROUP_DEFAULT):
 258         if not self.Z:
 259             self.__initialize_zypp()
 260         found = False
 261         q=zypp.PoolQuery()
 262         q.addKind(zypp.ResKind.pattern)
 263         for item in q.queryResults(self.Z.pool()):
 264             summary = "%s" % item.summary()
 265             name = "%s" % item.name()
 266             if name == grp or summary == grp:
 267                 found = True
 268                 item.status().setToBeInstalled (zypp.ResStatus.USER)
 269                 break
 270
 271         if found:
 272             if include == ksparser.GROUP_REQUIRED:
 273                 map(
 274                     lambda p: self.deselectPackage(p),
 275                     grp.default_packages.keys())
 276
 277             return None
 278         else:
 279             raise CreatorError("Unable to find pattern: %s" % (grp,))
 280
 281     def addRepository(self, name,
 282                             url = None,
 283                             mirrorlist = None,
 284                             proxy = None,
 285                             proxy_username = None,
 286                             proxy_password = None,
 287                             inc = None,
 288                             exc = None,
 289                             ssl_verify = True,
 290                             cost=None,
 291                             priority=None):
 292         # TODO: Handle cost attribute for repos
 293
 294         if not self.repo_manager:
 295             self.__initialize_repo_manager()
 296
 297         repo = RepositoryStub()
 298         repo.name = name
 299         repo.id = name
 300         repo.proxy = proxy
 301         repo.proxy_username = proxy_username
 302         repo.proxy_password = proxy_password
 303         repo.ssl_verify = ssl_verify
 304         repo.baseurl.append(url)
 305         if inc:
 306             for pkg in inc:
 307                 self.incpkgs[pkg] = name
 308         if exc:
 309             for pkg in exc:
 310                 self.excpkgs[pkg] = name
 311
 312         # check LICENSE files
 313         if not rpmmisc.checkRepositoryEULA(name, repo):
 314             msger.warning('skip repo:%s for failed EULA confirmation' % name)
 315             return None
 316
 317         if mirrorlist:
 318             repo.mirrorlist = mirrorlist
 319
 320         # Enable gpg check for verifying corrupt packages
 321         repo.gpgcheck = 1
 322         if priority:
 323             repo.priority = priority
 324         self.repos.append(repo)
 325
 326         try:
 327             repo_info = zypp.RepoInfo()
 328             repo_info.setAlias(repo.name)
 329             repo_info.setName(repo.name)
 330             repo_info.setEnabled(repo.enabled)
 331             repo_info.setAutorefresh(repo.autorefresh)
 332             repo_info.setKeepPackages(repo.keeppackages)
 333             baseurl = zypp.Url(repo.baseurl[0])
 334             if not ssl_verify:
 335                 baseurl.setQueryParam("ssl_verify", "no")
 336             if proxy:
 337                 scheme, host, path, parm, query, frag = urlparse.urlparse(proxy)
 338
 339                 proxyinfo = host.split(":")
 340                 host = proxyinfo[0]
 341
 342                 port = "80"
 343                 if len(proxyinfo) > 1:
 344                     port = proxyinfo[1]
 345
 346                 if proxy.startswith("socks") and len(proxy.rsplit(':', 1)) == 2:
 347                     host = proxy.rsplit(':', 1)[0]
 348                     port = proxy.rsplit(':', 1)[1]
 349
 350                 baseurl.setQueryParam ("proxy", host)
 351                 baseurl.setQueryParam ("proxyport", port)
 352
 353             repo_info.addBaseUrl(baseurl)
 354
 355             if repo.priority:
 356                 repo_info.setPriority(repo.priority)
 357
 358             self.repo_manager.addRepository(repo_info)
 359
 360             self.__build_repo_cache(name)
 361
 362         except RuntimeError, e:
 363             raise CreatorError(str(e))
 364
 365         msger.verbose('repo: %s was added' % name)
 366         return repo
 367
 368     def installHasFile(self, file):
 369         return False
 370
 371     def runInstall(self, checksize = 0):
 372         os.environ["HOME"] = "/"
 373         self.buildTransaction()
 374
 375         todo = zypp.GetResolvablesToInsDel(self.Z.pool())
 376         installed_pkgs = todo._toInstall
 377         dlpkgs = []
 378         for item in installed_pkgs:
 379             if not zypp.isKindPattern(item) and \
 380                not self.inDeselectPackages(item):
 381                 dlpkgs.append(item)
 382
 383         # record all pkg and the content
 384         localpkgs = self.localpkgs.keys()
 385         for pkg in dlpkgs:
 386             license = ''
 387             if pkg.name() in localpkgs:
 388                 hdr = rpmmisc.readRpmHeader(self.ts, self.localpkgs[pkg.name()])
 389                 pkg_long_name = misc.RPM_FMT % {
 390                                     'name': hdr['name'],
 391                                     'arch': hdr['arch'],
 392                                     'ver_rel': '%s-%s' % (hdr['version'],
 393                                                           hdr['release']),
 394                                 }
 395                 license = hdr['license']
 396
 397             else:
 398                 pkg_long_name = misc.RPM_FMT % {
 399                                     'name': pkg.name(),
 400                                     'arch': pkg.arch(),
 401                                     'ver_rel': pkg.edition(),
 402                                 }
 403
 404                 package = zypp.asKindPackage(pkg)
 405                 license = package.license()
 406
 407             self.__pkgs_content[pkg_long_name] = {} #TBD: to get file list
 408
 409             if license in self.__pkgs_license.keys():
 410                 self.__pkgs_license[license].append(pkg_long_name)
 411             else:
 412                 self.__pkgs_license[license] = [pkg_long_name]
 413
 414         total_count = len(dlpkgs)
 415         cached_count = 0
 416         download_total_size = sum(map(lambda x: int(x.downloadSize()), dlpkgs))
 417         localpkgs = self.localpkgs.keys()
 418
 419         msger.info("Checking packages cache and packages integrity ...")
 420         for po in dlpkgs:
 421             # Check if it is cached locally
 422             if po.name() in localpkgs:
 423                 cached_count += 1
 424             else:
 425                 local = self.getLocalPkgPath(po)
 426                 if os.path.exists(local):
 427                     if self.checkPkg(local) != 0:
 428                         os.unlink(local)
 429                     else:
 430                         download_total_size -= int(po.downloadSize())
 431                         cached_count += 1
 432         cache_avail_size = misc.get_filesystem_avail(self.cachedir)
 433         if cache_avail_size < download_total_size:
 434             raise CreatorError("No enough space used for downloading.")
 435
 436         # record the total size of installed pkgs
 437         install_total_size = sum(map(lambda x: int(x.installSize()), dlpkgs))
 438         # check needed size before actually download and install
 439         if checksize and install_total_size > checksize:
 440             raise CreatorError("No enough space used for installing, "
 441                                "please resize partition size in ks file")
 442
 443         download_count =  total_count - cached_count
 444         msger.info("%d packages to be installed, "
 445                    "%d packages gotten from cache, "
 446                    "%d packages to be downloaded" \
 447                    % (total_count, cached_count, download_count))
 448
 449         try:
 450             if download_count > 0:
 451                 msger.info("Downloading packages ...")
 452             self.downloadPkgs(dlpkgs, download_count)
 453
 454             self.installPkgs(dlpkgs)
 455
 456         except RepoError, e:
 457             raise CreatorError("Unable to download from repo : %s" % (e,))
 458         except RpmError, e:
 459             raise CreatorError("Unable to install: %s" % (e,))
 460
 461     def getAllContent(self):
 462         return self.__pkgs_content
 463
 464     def getPkgsLicense(self):
 465         return self.__pkgs_license
 466
 467     def __initialize_repo_manager(self):
 468         if self.repo_manager:
 469             return
 470
 471         # Clean up repo metadata
 472         shutil.rmtree(self.cachedir + "/etc", ignore_errors = True)
 473         shutil.rmtree(self.cachedir + "/solv", ignore_errors = True)
 474         shutil.rmtree(self.cachedir + "/raw", ignore_errors = True)
 475
 476         zypp.KeyRing.setDefaultAccept( zypp.KeyRing.ACCEPT_UNSIGNED_FILE
 477                                      | zypp.KeyRing.ACCEPT_VERIFICATION_FAILED
 478                                      | zypp.KeyRing.ACCEPT_UNKNOWNKEY
 479                                      | zypp.KeyRing.TRUST_KEY_TEMPORARILY
 480                                      )
 481
 482         self.repo_manager_options = \
 483                 zypp.RepoManagerOptions(zypp.Pathname(self.instroot))
 484
 485         self.repo_manager_options.knownReposPath = \
 486                 zypp.Pathname(self.cachedir + "/etc/zypp/repos.d")
 487
 488         self.repo_manager_options.repoCachePath = \
 489                 zypp.Pathname(self.cachedir)
 490
 491         self.repo_manager_options.repoRawCachePath = \
 492                 zypp.Pathname(self.cachedir + "/raw")
 493
 494         self.repo_manager_options.repoSolvCachePath = \
 495                 zypp.Pathname(self.cachedir + "/solv")
 496
 497         self.repo_manager_options.repoPackagesCachePath = \
 498                 zypp.Pathname(self.cachedir + "/packages")
 499
 500         self.repo_manager = zypp.RepoManager(self.repo_manager_options)
 501
 502     def __build_repo_cache(self, name):
 503         repo = self.repo_manager.getRepositoryInfo(name)
 504         if self.repo_manager.isCached(repo) or not repo.enabled():
 505             return
 506
 507         self.repo_manager.buildCache(repo, zypp.RepoManager.BuildIfNeeded)
 508
 509     def __initialize_zypp(self):
 510         if self.Z:
 511             return
 512
 513         zconfig = zypp.ZConfig_instance()
 514
 515         # Set system architecture
 516         if self.target_arch:
 517             zconfig.setSystemArchitecture(zypp.Arch(self.target_arch))
 518
 519         msger.info("zypp architecture is <%s>" % zconfig.systemArchitecture())
 520
 521         # repoPackagesCachePath is corrected by this
 522         self.repo_manager = zypp.RepoManager(self.repo_manager_options)
 523         repos = self.repo_manager.knownRepositories()
 524         for repo in repos:
 525             if not repo.enabled():
 526                 continue
 527             self.repo_manager.loadFromCache(repo)
 528
 529         self.Z = zypp.ZYppFactory_instance().getZYpp()
 530         self.Z.initializeTarget(zypp.Pathname(self.instroot))
 531         self.Z.target().load()
 532
 533     def buildTransaction(self):
 534         if not self.Z.resolver().resolvePool():
 535             msger.warning("Problem count: %d" \
 536                           % len(self.Z.resolver().problems()))
 537
 538             for problem in self.Z.resolver().problems():
 539                 msger.warning("Problem: %s, %s" \
 540                               % (problem.description().decode("utf-8"),
 541                                  problem.details().decode("utf-8")))
 542
 543     def getLocalPkgPath(self, po):
 544         repoinfo = po.repoInfo()
 545         cacheroot = repoinfo.packagesPath()
 546         location= zypp.asKindPackage(po).location()
 547         rpmpath = str(location.filename())
 548         pkgpath = "%s/%s" % (cacheroot, rpmpath)
 549         return pkgpath
 550
 551     def installLocal(self, pkg, po=None, updateonly=False):
 552         if not self.ts:
 553             self.__initialize_transaction()
 554
 555         solvfile = "%s/.solv" % (self.cachedir)
 556
 557         rc, out = runner.runtool([fs_related.find_binary_path("rpms2solv"),
 558                                   pkg])
 559         if rc == 0:
 560             f = open(solvfile, "w+")
 561             f.write(out)
 562             f.close()
 563
 564             warnmsg = self.repo_manager.loadSolvFile(solvfile,
 565                                                      os.path.basename(pkg))
 566             if warnmsg:
 567                 msger.warning(warnmsg)
 568
 569             os.unlink(solvfile)
 570         else:
 571             msger.warning('Can not get %s solv data.' % pkg)
 572
 573         hdr = rpmmisc.readRpmHeader(self.ts, pkg)
 574         arch = zypp.Arch(hdr['arch'])
 575         sysarch = zypp.Arch(self.target_arch)
 576
 577         if arch.compatible_with (sysarch):
 578             pkgname = hdr['name']
 579             self.localpkgs[pkgname] = pkg
 580             self.selectPackage(pkgname)
 581             msger.info("Marking %s to be installed" % (pkg))
 582
 583         else:
 584             msger.warning("Cannot add package %s to transaction. "
 585                           "Not a compatible architecture: %s" \
 586                           % (pkg, hdr['arch']))
 587
 588     def downloadPkgs(self, package_objects, count):
 589         localpkgs = self.localpkgs.keys()
 590         progress_obj = rpmmisc.TextProgress(count)
 591
 592         for po in package_objects:
 593             if po.name() in localpkgs:
 594                 continue
 595
 596             filename = self.getLocalPkgPath(po)
 597             if os.path.exists(filename):
 598                 if self.checkPkg(filename) == 0:
 599                     continue
 600
 601             dirn = os.path.dirname(filename)
 602             if not os.path.exists(dirn):
 603                 os.makedirs(dirn)
 604
 605             baseurl = str(po.repoInfo().baseUrls()[0])
 606             index = baseurl.find("?")
 607             if index > -1:
 608                 baseurl = baseurl[:index]
 609
 610             proxy = self.get_proxy(po.repoInfo())
 611             proxies = {}
 612             if proxy:
 613                 proxies = {str(proxy.split(":")[0]):str(proxy)}
 614
 615             location = zypp.asKindPackage(po).location()
 616             location = str(location.filename())
 617             if location.startswith("./"):
 618                 location = location[2:]
 619
 620             url = baseurl + "/%s" % location
 621
 622             try:
 623                 filename = rpmmisc.myurlgrab(url,
 624                                              filename,
 625                                              proxies,
 626                                              progress_obj)
 627             except CreatorError:
 628                 self.close()
 629                 raise
 630
 631     def installPkgs(self, package_objects):
 632         if not self.ts:
 633             self.__initialize_transaction()
 634
 635         # Set filters
 636         probfilter = 0
 637         for flag in self.probFilterFlags:
 638             probfilter |= flag
 639         self.ts.setProbFilter(probfilter)
 640
 641         localpkgs = self.localpkgs.keys()
 642
 643         for po in package_objects:
 644             pkgname = po.name()
 645             if pkgname in localpkgs:
 646                 rpmpath = self.localpkgs[pkgname]
 647             else:
 648                 rpmpath = self.getLocalPkgPath(po)
 649
 650             if not os.path.exists(rpmpath):
 651                 # Maybe it is a local repo
 652                 baseurl = str(po.repoInfo().baseUrls()[0])
 653                 baseurl = baseurl.strip()
 654
 655                 location = zypp.asKindPackage(po).location()
 656                 location = str(location.filename())
 657
 658                 if baseurl.startswith("file:/"):
 659                     rpmpath = baseurl[5:] + "/%s" % (location)
 660
 661             if not os.path.exists(rpmpath):
 662                 raise RpmError("Error: %s doesn't exist" % rpmpath)
 663
 664             h = rpmmisc.readRpmHeader(self.ts, rpmpath)
 665             self.ts.addInstall(h, rpmpath, 'u')
 666
 667         unresolved_dependencies = self.ts.check()
 668         if not unresolved_dependencies:
 669             self.ts.order()
 670             cb = rpmmisc.RPMInstallCallback(self.ts)
 671             installlogfile = "%s/__catched_stderr.buf" % (self.instroot)
 672
 673             # start to catch stderr output from librpm
 674             msger.enable_logstderr(installlogfile)
 675
 676             errors = self.ts.run(cb.callback, '')
 677             if errors is None:
 678                 pass
 679
 680             elif len(errors) == 0:
 681                 msger.warning('scriptlet or other non-fatal errors occurred '
 682                               'during transaction.')
 683
 684             else:
 685                 for e in errors:
 686                     msger.warning(e[0])
 687                 msger.error('Could not run transaction.')
 688
 689             # stop catch
 690             msger.disable_logstderr()
 691
 692             self.ts.closeDB()
 693             self.ts = None
 694
 695         else:
 696             for pkg, need, needflags, sense, key in unresolved_dependencies:
 697                 package = '-'.join(pkg)
 698
 699                 if needflags == rpm.RPMSENSE_LESS:
 700                     deppkg = ' < '.join(need)
 701                 elif needflags == rpm.RPMSENSE_EQUAL:
 702                     deppkg = ' = '.join(need)
 703                 elif needflags == rpm.RPMSENSE_GREATER:
 704                     deppkg = ' > '.join(need)
 705                 else:
 706                     deppkg = '-'.join(need)
 707
 708                 if sense == rpm.RPMDEP_SENSE_REQUIRES:
 709                     msger.warning("[%s] Requires [%s], which is not provided" \
 710                                   % (package, deppkg))
 711
 712                 elif sense == rpm.RPMDEP_SENSE_CONFLICTS:
 713                     msger.warning("[%s] Conflicts with [%s]" %(package,deppkg))
 714
 715             raise RepoError("Unresolved dependencies, transaction failed.")
 716
 717     def __initialize_transaction(self):
 718         if not self.ts:
 719             self.ts = rpm.TransactionSet(self.instroot)
 720             # Set to not verify DSA signatures.
 721             self.ts.setVSFlags(rpm._RPMVSF_NOSIGNATURES|rpm._RPMVSF_NODIGESTS)
 722
 723     def checkPkg(self, pkg):
 724         ret = 1
 725         if not os.path.exists(pkg):
 726             return ret
 727         ret = rpmmisc.checkRpmIntegrity('rpm', pkg)
 728         if ret != 0:
 729             msger.warning("package %s is damaged: %s" \
 730                           % (os.path.basename(pkg), pkg))
 731
 732         return ret
 733
 734     def _add_prob_flags(self, *flags):
 735         for flag in flags:
 736            if flag not in self.probFilterFlags:
 737                self.probFilterFlags.append(flag)
 738
 739     def get_proxy(self, repoinfo):
 740         proxy = None
 741         reponame = "%s" % repoinfo.name()
 742         for repo in self.repos:
 743             if repo.name == reponame:
 744                 proxy = repo.proxy
 745                 break
 746
 747         if proxy:
 748             return proxy
 749         else:
 750             repourl = str(repoinfo.baseUrls()[0])
 751             return get_proxy_for(repourl)