Latest version of RPMng from mbrady

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@3029 ce84e21b-d406-0410-9b95-82705330c041

1 files changed, 621 insertions, 270 deletions

diff --git a/src/lib/Client/Tools/RPMng.py b/src/lib/Client/Tools/RPMng.py
index dcda1bed7..926e29c4d 100644
--- a/src/lib/Client/Tools/RPMng.py
+++ b/src/lib/Client/Tools/RPMng.py
@@ -2,7 +2,8 @@
 
 __revision__ = '$Revision$'
 
-import Bcfg2.Client.Tools, time, rpmtools, sys
+import Bcfg2.Client.Tools, rpmtools, os.path, rpm, ConfigParser
+
 
 class RPMng(Bcfg2.Client.Tools.PkgTool):
     '''Support for RPM packages'''
@@ -17,26 +18,49 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
     __new_ireq__ = {'Package': ['name', 'uri'], \
                     'Instance': ['simplefile', 'version', 'release', 'arch']}
     
-    __gpg_req__ = {'Package': ['name'], 'Instance': ['version', 'release']}
-    __gpg_ireq__ = {'Package': ['name'], 'Instance': ['version', 'release']}
+    __gpg_req__ = {'Package': ['name', 'version']}
+    __gpg_ireq__ = {'Package': ['name', 'version']}
+    
+    __new_gpg_req__ = {'Package': ['name'], 'Instance': ['version', 'release']}
+    __new_gpg_ireq__ = {'Package': ['name'], 'Instance': ['version', 'release']}
 
     conflicts = ['RPM']
 
     pkgtype = 'rpm'
     pkgtool = ("rpm --oldpackage --replacepkgs --quiet -U %s", ("%s", ["url"]))
 
-    # This is mostly the default list from YUM on Centos 4.  Check these are 
-    # still correct.
-    # ***** Should probably put in bcfg2.config somewhere. *****
-    installOnlyPkgs = ['kernel', 'kernel-bigmem', 'kernel-enterprise', 'kernel-smp',
-                       'kernel-modules', 'kernel-debug', 'kernel-unsupported',
-                       'kernel-source', 'kernel-devel', 'kernel-default',
-                       'kernel-largesmp-devel', 'kernel-largesmp', 'gpg-pubkey']
     
     def __init__(self, logger, setup, config, states):
         Bcfg2.Client.Tools.PkgTool.__init__(self, logger, setup, config, states)
 
+        self.installOnlyPkgs = []
+        self.erase_flags = []
         self.instance_status = {}
+        self.extra_instances = []
+        self.gpg_keyids = self.getinstalledgpg()
+
+        # Process thee RPMng section from the config file.
+        RPMng_CP = ConfigParser.ConfigParser()
+        RPMng_CP.read(self.setup.get('setup'))
+
+        # installonlypackages
+        if RPMng_CP.has_option('RPMng','installonlypackages'):
+            self.installOnlyPkgs = RPMng_CP.get('RPMng','installonlypackages').split(',') + \
+                                                                                   ['gpg-pubkey']
+        if self.installOnlyPkgs == []:
+            self.installOnlyPkgs = ['kernel', 'kernel-bigmem', 'kernel-enterprise', 'kernel-smp',
+                               'kernel-modules', 'kernel-debug', 'kernel-unsupported',
+                               'kernel-source', 'kernel-devel', 'kernel-default',
+                               'kernel-largesmp-devel', 'kernel-largesmp', 'kernel-xen', 
+                               'gpg-pubkey']
+        self.logger.debug('installOnlyPackages = %s' % self.installOnlyPkgs)
+
+        # erase_flags
+        if RPMng_CP.has_option('RPMng','erase_flags'):
+            self.installOnlyPkgs = RPMng_CP.get('RPMng','erase_flags').split(',')
+        if self.erase_flags == []:
+            self.erase_flags = ['allmatches']
+        self.logger.debug('erase_flags = %s' % self.erase_flags)
 
     def RefreshPackages(self):
         '''
@@ -56,6 +80,9 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
         '''
         self.installed = {}
         refresh_ts = rpmtools.rpmtransactionset()
+        # Don't bother with signature checks at this stage. The GPG keys might 
+        # not be installed.
+        refresh_ts.setVSFlags(rpm._RPMVSF_NODIGESTS|rpm._RPMVSF_NOSIGNATURES)
         for nevra in rpmtools.rpmpackagelist(refresh_ts):
             self.installed.setdefault(nevra['name'], []).append(nevra)
         if self.setup['debug']:
@@ -63,32 +90,48 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
             for name, instances in self.installed.iteritems():
                 self.logger.info("    " + name)
                 for inst in instances:
-                    self.logger.info("        %s:%s-%s.%s" % \
-                                         (inst.get('epoch', None), inst.get('version', None), 
-                                          inst.get('release', None), inst.get('arch', None)))
+                    self.logger.info("        %s" %self.str_evra(inst)) 
         refresh_ts.closeDB()
+        del refresh_ts
 
     def VerifyPackage(self, entry, modlist):
         '''
             Verify Package status for entry.
-            Compares the 'version' info against self.installed{} and does 
-            an rpm level package verify.
-
-            Code for the old/new style Package Entries has been kept separate,
-            even though it has meant some code duplication, so that the old style 
-            code can be easily removed at a later date.
+            Performs the following:
+                - Checks for the presence of required Package Instances.
+                - Compares the evra 'version' info against self.installed{}.
+                - RPM level package verify (rpm --verify).
+                - Checks for the presence of unrequired package instances.
+
+            Produces the following dict and list for RPMng.Install() to use:
+              For installs/upgrades/fixes of required instances:
+                instance_status = { <Instance Element Object>:
+                                       { 'installed': True|False,
+                                         'version_fail': True|False,
+                                         'verify_fail': True|False,
+                                         'pkg': <Package Element Object>,
+                                         'modlist': [ <filename>, ... ],
+                                         'verify' : [ <rpm --verify results> ]  
+                                       }, ......
+                                  }
+
+              For deletions of unrequired instances:
+                extra_instances = [ <Package Element Object>, ..... ]
+
+              Constructs the text prompts for interactive mode.
         '''
-
-        instances = entry.findall('Instance')
-        if not instances:
-            # We have an old style no Instance entry.
-            if entry.get('release', None) == None:
-                version, release = entry.get('version').split('-')
-                entry.set('version', version)
-                entry.set('release', release)
-            instances = [ entry ]
-
-        vp_ts = rpmtools.rpmtransactionset()
+        if len(entry) == 0:
+            # We have an old style no Instance entry. Convert it to new style.
+            version, release = entry.get('version').split('-')
+            instance = Bcfg2.Client.XML.SubElement(entry, 'Package')
+            for attrib in entry.attrib.keys():
+                instance.attrib[attrib] = entry.attrib[attrib]
+            instance.set('version', version)
+            instance.set('release', release)
+            instances = [ instance ]
+        else:
+            # We have a new style entry or a previously converted old style entry.
+            instances = [inst for inst in entry if inst.tag == 'Instance' or inst.tag == 'Package']
 
         self.logger.info("Verifying package instances for %s" % entry.get('name'))
         package_fail = False
@@ -104,43 +147,32 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
                     self.instance_status.setdefault(inst, {})['installed'] = False
                     self.instance_status[inst]['version_fail'] = False
                     if inst.tag == 'Package' and len(self.installed[entry.get('name')]) > 1:
-                        self.logger.error("WARNING: Multiple instances of package %s are installed." % (entry.get('name')))
+                        self.logger.error("WARNING: Multiple instances of package %s are installed." % \
+                                                                               (entry.get('name')))
                     for pkg in self.installed[entry.get('name')]:
-                        if inst.tag == 'Package':
-                            # We have an old style Package entry that does not
-                            # have an epoch or an arch, so scrub them from 
-                            # installed{}.
-                            pkg.pop('arch', None)
-                            pkg.pop('epoch', None)
-                        if inst.get('epoch', None) != None:
-                            epoch = int(inst.get('epoch'))
-                        else:
-                            epoch = None
-                        if epoch == pkg.get('epoch') and \
-                           inst.get('version') == pkg.get('version') and \
-                           inst.get('release') == pkg.get('release') and \
-                           inst.get('arch', None) == pkg.get('arch', None):
-                            self.logger.info("        %s:%s-%s.%s" % \
-                                     (inst.get('epoch', None), inst.get('version'), 
-                                      inst.get('release'), inst.get('arch', None)))
+                        if self.pkg_vr_equal(inst, pkg) or self.inst_evra_equal(inst, pkg):
+                            self.logger.info("        %s" % self.str_evra(inst))
                             self.logger.debug("        verify_flags = %s" % \
                                                            (inst.get('verify_flags', [])))
                             self.instance_status[inst]['installed'] = True
+     
+                            flags = inst.get('verify_flags', '').split(',')
+                            if pkg.get('gpgkeyid', '')[-8:] not in self.gpg_keyids and \
+                               entry.get('name') != 'gpg-pubkey':
+                                flags += ['nosignature', 'nodigest']
+                                self.logger.info('WARNING: Package %s %s requires GPG Public key with ID %s'\
+                                                   % (pkg.get('name'), self.str_evra(pkg), \
+                                                      pkg.get('gpgkeyid', '')))
+                                self.logger.info('         Disabling signature check.')
+
                             self.instance_status[inst]['verify'] = \
-                                  rpmtools.rpm_verify( vp_ts, pkg, \
-                                                       inst.get('verify_flags', '').split(','))
+                                                      rpmtools.rpm_verify( self.vp_ts, pkg, flags)
 
                     if self.instance_status[inst]['installed'] == False:
-                        package_fail = True
-                        self.logger.info("        Package %s %s:%s-%s.%s not installed." % \
-                                     (entry.get('name'),
-                                      inst.get('epoch', None), inst.get('version'), 
-                                      inst.get('release'), inst.get('arch', None)))
+                        self.logger.info("        Package %s %s not installed." % \
+                                     (entry.get('name'), self.str_evra(inst)))
                             
-                        qtext_versions = qtext_versions + '%s:%s-%s.%s ' % \
-                                            (inst.get('epoch', ''), inst.get('version', ''),\
-                                             inst.get('release', ''), inst.get('arch', ''))
-                  
+                        qtext_versions = qtext_versions + 'I(%s) ' % self.str_evra(inst)
                         entry.set('current_exists', 'false')
             else:
                 # Normal Packages that can be upgraded.
@@ -163,57 +195,38 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
                         # There is only one installed like there should be.
                         # Check that it is the right version.
                         for pkg in arch_match:
-                            if inst.tag == 'Package':
-                                # We have an old style Package entry that does not
-                                # have an epoch or an arch, so scrub them from 
-                                # installed{}.
-                                pkg.pop('arch', None)
-                                pkg.pop('epoch', None)
-                            if inst.get('epoch', None) != None:
-                                epoch = int(inst.get('epoch'))
-                            else:
-                                epoch = None
-                            if epoch == pkg.get('epoch', None) and \
-                               inst.get('version') == pkg.get('version') and \
-                               inst.get('release') == pkg.get('release'):
-                                self.logger.info("        %s:%s-%s.%s" % \
-                                            (inst.get('epoch', None), inst.get('version', ''), \
-                                             inst.get('release', ''), inst.get('arch', None)))
+                            if self.pkg_vr_equal(inst, pkg) or self.inst_evra_equal(inst, pkg):
+                                self.logger.info("        %s" % self.str_evra(inst))
                                 self.logger.debug("        verify_flags = %s" % \
                                                               (inst.get('verify_flags', [])))
                                 self.instance_status[inst]['installed'] = True
+
+                                flags = inst.get('verify_flags', '').split(',') 
+                                if pkg.get('gpgkeyid', '')[-8:] not in self.gpg_keyids:
+                                    flags += ['nosignature', 'nodigest']
+                                    self.logger.info('WARNING: Package %s %s requires GPG Public key with ID %s'\
+                                                       % (pkg.get('name'), self.str_evra(pkg), \
+                                                          pkg.get('gpgkeyid', '')))
+                                    self.logger.info('         Disabling signature check.')
+
                                 self.instance_status[inst]['verify'] = \
-                                   rpmtools.rpm_verify( vp_ts, pkg,\
-                                                        inst.get('verify_flags', '').split(','))
+                                                      rpmtools.rpm_verify( self.vp_ts, pkg, flags )
+
                             else:
-                                package_fail = True
+                                # Wrong version installed.
                                 self.instance_status[inst]['version_fail'] = True
-                                self.logger.info("        Wrong version installed.  Want %s:%s-%s.%s, but have %s:%s-%s.%s" % \
-                                            (inst.get('epoch', None), inst.get('version'), \
-                                             inst.get('release'), inst.get('arch', None), \
-                                             pkg.get('epoch'), pkg.get('version'), \
-                                             pkg.get('release'), pkg.get('arch')))
+                                self.logger.info("        Wrong version installed.  Want %s, but have %s"\
+                                                       % (self.str_evra(inst), self.str_evra(pkg)))
                         
-                                qtext_versions = qtext_versions + \
-                                            '(%s:%s-%s.%s -> %s:%s-%s.%s) ' % \
-                                            (pkg.get('epoch', ''), pkg.get('version'), \
-                                             pkg.get('release'), pkg.get('arch', ''), \
-                                             inst.get('epoch', ''), inst.get('version'), \
-                                             inst.get('release'), inst.get('arch', ''))
+                                qtext_versions = qtext_versions + 'U(%s -> %s) ' % \
+                                                          (self.str_evra(pkg), self.str_evra(inst))
                     elif len(arch_match) == 0:
                         # This instance is not installed.
                         self.instance_status[inst]['installed'] = False
-                        
-                        self.logger.info("        %s:%s-%s.%s is not installed." % \
-                                            (inst.get('epoch', None), inst.get('version'), \
-                                             inst.get('release'), inst.get('arch', None)))
-                        
-                        qtext_versions = qtext_versions + '%s:%s-%s.%s ' % \
-                                            (inst.get('epoch', ''), inst.get('version'), \
-                                             inst.get('release'), inst.get('arch', ''))
-                  
-                        entry.set('current_exists', 'false')
+                        self.logger.info("        %s is not installed." % self.str_evra(inst))
+                        qtext_versions = qtext_versions + 'I(%s) ' % self.str_evra(inst)
 
+            # Check the rpm verify results.
             for inst in instances:
                 instance_fail = False
                 # Dump the rpm verify results. 
@@ -221,24 +234,21 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
                 if self.setup['debug'] and self.instance_status[inst].get('verify', None):
                     self.logger.debug(self.instance_status[inst]['verify'])
 
-                # Check the rpm verify results.
+                self.instance_status[inst]['verify_fail'] = False
                 if self.instance_status[inst].get('verify', None):
                     if len(self.instance_status[inst].get('verify')) > 1:
                         self.logger.info("WARNING: Verification of more than one package instance.")
                  
-                    self.instance_status[inst]['verify_fail'] = False
 
                     for result in self.instance_status[inst]['verify']:
 
                         # Check header results
-                        if result.get('hdr', []):
-                            package_fail = True
+                        if result.get('hdr', None):
                             instance_fail = True
                             self.instance_status[inst]['verify_fail'] = True
     
                         # Check dependency results
-                        if result.get('deps', []):
-                            package_fail = True
+                        if result.get('deps', None):
                             instance_fail = True
                             self.instance_status[inst]['verify_fail'] = True
                          
@@ -248,7 +258,6 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
                             if file_result[-1] not in modlist and \
                                file_result[-1] not in \
                                           [ignore.get('name') for ignore in inst.findall('Ignore')]:
-                                package_fail = True
                                 instance_fail = True
                                 self.instance_status[inst]['verify_fail'] = True
                             else:
@@ -256,87 +265,355 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
                                                                                (file_result[-1]))
 
                     if instance_fail == True:
-                        self.logger.info("*** Instance %s:%s-%s.%s failed RPM verification ***" % \
-                                           (inst.get('epoch', None), inst.get('version'), \
-                                            inst.get('release'), inst.get('arch', None)))
-                        
-                        qtext_versions = qtext_versions + '%s:%s-%s.%s ' % \
-                                            (inst.get('epoch', ''), inst.get('version'), \
-                                             inst.get('release'), inst.get('arch', ''))
+                        self.logger.info("*** Instance %s failed RPM verification ***" % \
+                                                                               self.str_evra(inst))
+                        qtext_versions = qtext_versions + 'R(%s) ' % self.str_evra(inst)
+                        self.instance_status[inst]['modlist'] = modlist
 
                 if self.instance_status[inst]['installed'] == False or \
-                   self.instance_status[inst]['version_fail'] == True:
+                   self.instance_status[inst].get('version_fail', False)== True or \
+                   self.instance_status[inst].get('verify_fail', False) == True:
                     package_fail = True
-
+                    self.instance_status[inst]['pkg'] = entry
+                    self.instance_status[inst]['modlist'] = modlist
+
+            # Find Installed Instances that are not in the Config.
+            extra_installed = self.FindExtraInstances(entry, self.installed[entry.get('name')])
+            if extra_installed != None:
+                package_fail = True
+                self.extra_instances.append(extra_installed)
+                for inst in extra_installed.findall('Instance'):
+                    qtext_versions = qtext_versions + 'D(%s) ' % self.str_evra(inst)
+                self.logger.debug("Found Extra Instances %s" % qtext_versions)
+           
             if package_fail == True:
-                self.logger.info("        Package %s failed verification." % \
-                                                                        (entry.get('name')))
-                qtext = 'Upgrade/downgrade Package %s instance(s) - %s (y/N) ' % \
+                self.logger.info("        Package %s failed verification." % (entry.get('name')))
+                qtext = 'Install/Upgrade/delete Package %s instance(s) - %s (y/N) ' % \
                                               (entry.get('name'), qtext_versions)
                 entry.set('qtext', qtext)
-                entry.set('current_version', "%s:%s-%s.%s" % \
-                                (inst.get('epoch', None), inst.get('version'), 
-                                 inst.get('release'), inst.get('arch', None)))
+
+                bcfg2_versions = ''
+                for bcfg2_inst in [inst for inst in instances if inst.tag == 'Instance']:
+                    bcfg2_versions = bcfg2_versions + '(%s) ' % self.str_evra(bcfg2_inst)
+                if bcfg2_versions != '':
+                    entry.set('version', bcfg2_versions)
+                installed_versions = ''
+
+                for installed_inst in self.installed[entry.get('name')]:
+                    installed_versions = installed_versions + '(%s) ' % \
+                                                                    self.str_evra(installed_inst)
+
+                entry.set('current_version', installed_versions)
                 return False
 
         else:
             # There are no Instances of this package installed.
             self.logger.debug("Package %s has no instances installed" % (entry.get('name')))
             entry.set('current_exists', 'false')
+            bcfg2_versions = ''
             for inst in instances:
-                qtext_versions = qtext_versions + '%s:%s-%s.%s ' % \
-                                (inst.get('epoch', None), inst.get('version'),
-                                 inst.get('release'), inst.get('arch', None))
+                qtext_versions = qtext_versions + 'I(%s) ' % self.str_evra(inst)
                 self.instance_status.setdefault(inst, {})['installed'] = False
-
+                self.instance_status[inst]['modlist'] = modlist
+                self.instance_status[inst]['pkg'] = entry
+                if inst.tag == 'Instance':
+                    bcfg2_versions = bcfg2_versions + '(%s) ' % self.str_evra(inst)
+            if bcfg2_versions != '':
+                entry.set('version', bcfg2_versions)
             entry.set('qtext', "Install Package %s Instance(s) %s? (y/N) " % \
                                                         (entry.get('name'), qtext_versions))
-                          
+
             return False
         return True
 
     def RemovePackages(self, packages):
-        '''Remove specified entries'''
-        #pkgnames = [pkg.get('name') for pkg in packages]
-        #if len(pkgnames) > 0:
-        #    self.logger.info("Removing packages: %s" % pkgnames)
-        #    if self.cmd.run("rpm --quiet -e --allmatches %s" % " ".join(pkgnames))[0] == 0:
-        #        self.modified += packages
-        #    else:
-        #        for pkg in packages:
-        #            if self.cmd.run("rpm --quiet -e --allmatches %s" % \
-        #                            pkg.get('name'))[0] == 0:
-        #                self.modified += pkg
-        #
-        # self.RefreshPackages()
-        #    self.extra = self.FindExtraPackages()
-        print "The following package instances would have been deleted:"
+        '''
+           Remove specified entries.
+
+           packages is a list of Package Entries with Instances generated 
+           by FindExtraPackages().
+        '''
+        self.logger.debug('Running RPMng.RemovePackages()')
+
+        pkgspec_list = []
         for pkg in packages:
-            print "    %s:" % (pkg.get('name'))
             for inst in pkg:
-                print "        %s:%s-%s.%s" % (inst.get('epoch', None), inst.get('version'), \
-                                               inst.get('release'), inst.get('arch', None))
+                if pkg.get('name') != 'gpg-pubkey':
+                    pkgspec = { 'name':pkg.get('name'),
+                            'epoch':inst.get('epoch', None),
+                            'version':inst.get('version'),
+                            'release':inst.get('release'),
+                            'arch':inst.get('arch') }
+                    pkgspec_list.append(pkgspec)
+                else:
+                    pkgspec = { 'name':pkg.get('name'),
+                            'version':inst.get('version'),
+                            'release':inst.get('release')}
+                    self.logger.info("WARNING: gpg-pubkey package not in configuration %s %s"\
+                                                 % (pkgspec.get('name'), self.str_evra(pkgspec)))
+                    self.logger.info("         This package will be deleted in a future version of the RPMng driver.")
+                #pkgspec_list.append(pkg_spec)
+
+        erase_results = rpmtools.rpm_erase(pkgspec_list, self.erase_flags) 
+        if erase_results == []:
+            self.modified += packages
+            for pkg in pkgspec_list:
+                self.logger.info("Deleted %s %s" % (pkg.get('name'), self.str_evra(pkg)))
+        else:
+            self.logger.info("Bulk erase failed with errors:")
+            self.logger.debug("Erase results = %s" % erase_results)
+            self.logger.info("Attempting individual erase for each package.")
+            pkgspec_list = []
+            for pkg in packages:
+                pkg_modified = False
+                for inst in pkg:
+                    if pkg.get('name') != 'gpg-pubkey':
+                        pkgspec = { 'name':pkg.get('name'),
+                                'epoch':inst.get('epoch', None),
+                                'version':inst.get('version'),
+                                'release':inst.get('release'),
+                                'arch':inst.get('arch') }
+                        pkgspec_list.append(pkgspec)
+                    else:
+                        pkgspec = { 'name':pkg.get('name'),
+                                'version':inst.get('version'),
+                                'release':inst.get('release')}
+                        self.logger.info("WARNING: gpg-pubkey package not in configuration %s %s"\
+                                                   % (pkgspec.get('name'), self.str_evra(pkgspec)))
+                        self.logger.info("         This package will be deleted in a future version of the RPMng driver.")
+                        continue # Don't delete the gpg-pubkey packages for now.
+                    erase_results = rpmtools.rpm_erase([pkgspec], self.erase_flags) 
+                    if erase_results == []:
+                        pkg_modified = True
+                        self.logger.info("Deleted %s %s" % \
+                                                   (pkgspec.get('name'), self.str_evra(pkgspec)))
+                    else:
+                        self.logger.error("unable to delete %s %s" % \
+                                                   (pkgspec.get('name'), self.str_evra(pkgspec)))
+                        self.logger.debug("Failure = %s" % erase_results)
+                if pkg_modified == True:
+                    self.modified.append(pkg)
 
+        self.RefreshPackages()
+        self.extra = self.FindExtraPackages()
+
+    def reinstall_check(self, verify_results):
+        '''
+           Control if a reinstall of a package happens or not based on the 
+           results from RPMng.VerifyPackage().
+
+           Return True to reinstall, False to not reintstall.
+        '''
+        reinstall = False
+
+        for inst in verify_results.get('verify'):
+            self.logger.debug('reinstall_check: %s %s:%s-%s.%s' % inst.get('nevra'))
+
+            # Parse file results
+            for file_result in inst.get('files'):
+                self.logger.debug('reinstall_check: file: %s' % file_result)
+                if file_result[-2] != 'c':
+                    reinstall = True
+
+        return reinstall
+    
     def Install(self, packages):
         '''
+           Try and fix everything that RPMng.VerifyPackages() found wrong for 
+           each Package Entry.  This can result in individual RPMs being 
+           installed (for the first time), reinstalled, deleted, downgraded 
+           or upgraded.
+
+           packages is a list of Package Elements that has 
+               self.states[<Package Element>] == False
+
+           The following effects occur:
+           - self.states{} is conditionally updated for each package.
+           - self.installed{} is rebuilt, possibly multiple times.
+           - self.instance_statusi{} is conditionally updated for each instance 
+             of a package.
+           - Each package will be added to self.modified[] if its self.states{} 
+             entry is set to True. 
         '''
-        self.logger.info('''The following packages have something wrong with them and RPM.Install()
-                 will try and do something to fix them if appropriate:''')
+        self.logger.info('Runing RPMng.Install()')
 
+        install_only_pkgs = []
+        gpg_keys = []
+        upgrade_pkgs = []
+
+        # Remove extra instances.
+        # Can not reverify because we don't have a package entry.
+        if len(self.extra_instances) > 0:
+            self.RemovePackages(self.extra_instances)
+
+        # Figure out which instances of the packages actually need something
+        # doing to them and place in the appropriate work 'queue'.
         for pkg in packages:
-            instances = pkg.findall('Instance')
-            if not instances:
-                instances = [ pkg ]
-            for inst in instances:
+            for inst in [inst for inst in pkg if inst.tag == 'Instance' or inst.tag == 'Package']:
                 if self.instance_status[inst].get('installed', False) == False or \
                    self.instance_status[inst].get('version_fail', False) == True or \
-                   self.instance_status[inst].get('verify_fail', False) == True:
-                    print "%s: %s:%s-%s.%s installed = %s, Version_fail = %s, verify_fail = %s" % \
-                        (pkg.get('name'),inst.get('epoch', None), inst.get('version'), \
-                         inst.get('release'), inst.get('arch', None), \
-                         self.instance_status[inst].get('installed', None),\
-                         self.instance_status[inst].get('version_fail', None),\
-                         self.instance_status[inst].get('verify_fail', None))
+                   (self.instance_status[inst].get('verify_fail', False) == True and \
+                    self.reinstall_check(self.instance_status[inst])):
+                    if pkg.get('name') == 'gpg-pubkey':
+                        gpg_keys.append(inst)
+                    elif pkg.get('name') in self.installOnlyPkgs:
+                        install_only_pkgs.append(inst)
+                    else:
+                        upgrade_pkgs.append(inst)
+
+        # Fix installOnlyPackages
+        if len(install_only_pkgs) > 0:
+            self.logger.info("Attempting to install 'install only packages'")
+            install_args = " ".join([os.path.join(self.instance_status[inst].get('pkg').get('uri'), \
+                                                  inst.get('simplefile')) \
+                                           for inst in install_only_pkgs])
+            self.logger.debug("rpm --install --quiet --oldpackage %s" % install_args)
+            cmdrc, output = self.cmd.run("rpm --install --quiet --oldpackage --replacepkgs %s" % \
+                                                                                     install_args)
+            if cmdrc == 0:
+                # The rpm command succeeded.  All packages installed.
+                self.logger.info("Single Pass for InstallOnlyPkgs Succeded")
+                self.RefreshPackages()
+
+                # Reverify all the packages that we might have just changed.
+                # There may be multiple instances per package, only do the 
+                # verification once.
+                install_pkg_set = set([self.instance_status[inst].get('pkg') \
+                                                      for inst in install_only_pkgs])
+                self.logger.info("Reverifying InstallOnlyPkgs")
+                for inst in install_only_pkgs:
+                    pkg_entry = self.instance_status[inst].get('pkg')
+                    if pkg_entry in install_pkg_set:
+                        self.logger.debug("Reverifying InstallOnlyPkg %s" % \
+                                                                      (pkg_entry.get('name')))
+                        install_pkg_set.remove(pkg_entry)
+                        self.states[pkg_entry] = self.VerifyPackage(pkg_entry, \
+                                                         self.instance_status[inst].get('modlist'))
+                    else:
+                        # We already reverified this pacakge.
+                        continue
+            else:
+                # The rpm command failed.  No packages installed.
+                # Try installing instances individually.
+                self.logger.error("Single Pass for InstallOnlyPackages Failed")
+                installed_instances = []
+                for inst in install_only_pkgs:
+                    install_args = os.path.join(self.instance_status[inst].get('pkg').get('uri'), \
+                                                     inst.get('simplefile'))
+                    self.logger.debug("rpm --install --quiet --oldpackage %s" % install_args)
+                    cmdrc, output = self.cmd.run("rpm --install --quiet --oldpackage --replacepkgs %s" % \
+                                                                                      install_args)
+                    if cmdrc == 0:
+                        installed_instances.append(inst)
+                    else:
+                        self.logger.debug("InstallOnlyPackage %s %s would not install." % \
+                                              (self.instance_status[inst].get('pkg').get('name'),\
+                                               self.str_evra(inst)))
+
+                install_pkg_set = set([self.instance_status[inst].get('pkg') \
+                                                      for inst in install_only_pkgs])
+                self.RefreshPackages()
+                for inst in installed_instances:
+                    pkg = inst.get('pkg')
+                    # Reverify all the packages that we might have just changed.
+                    # There may be multiple instances per package, only do the
+                    # verification once.
+                    if pkg in install_pkg_set:
+                        self.logger.debug("Reverifying InstallOnlyPkg %s" % \
+                                                                      (pkg_entry.get('name')))
+                        install_pkg_set.remove(pkg)
+                        self.states[pkg_entry] = self.VerifyPackage(pkg, \
+                                                         self.instance_status[inst].get('modlist'))
+                    else:
+                        # We already reverified this pacakge.
+                        continue
+
+        # Install GPG keys.
+        if len(gpg_keys) > 0:
+            for inst in gpg_keys:
+                self.logger.info("Installing GPG keys.")
+                key_arg = os.path.join(self.instance_status[inst].get('pkg').get('uri'), \
+                                                     inst.get('simplefile'))
+                cmdrc, output = self.cmd.run("rpm --import %s" % key_arg)
+                if cmdrc != 0:
+                    self.logger.debug("Unable to install %s-%s" % \
+                                              (self.instance_status[inst].get('pkg').get('name'), \
+                                               self.str_evra(inst)))
+                else:
+                    self.logger.debug("Installed %s-%s-%s" % \
+                                              (self.instance_status[inst].get('pkg').get('name'), \
+                                               inst.get('version'), inst.get('release')))
+            self.RefreshPackages()
+            self.gpg_keyids = self.getinstalledgpg()
+            pkg = self.instance_status[gpg_keys[0]].get('pkg')
+            self.states[pkg] = self.VerifyPackage(pkg, [])
+
+        # Fix upgradeable packages.
+        if len(upgrade_pkgs) > 0:
+            self.logger.info("Attempting to upgrade packages")
+            upgrade_args = " ".join([os.path.join(self.instance_status[inst].get('pkg').get('uri'), \
+                                                  inst.get('simplefile')) \
+                                           for inst in upgrade_pkgs])
+            cmdrc, output = self.cmd.run("rpm --upgrade --quiet --oldpackage --replacepkgs %s" % \
+                                                       upgrade_args)
+            if cmdrc == 0:
+                # The rpm command succeeded.  All packages upgraded.
+                self.logger.info("Single Pass for Upgraded Packages Succeded")
+                upgrade_pkg_set = set([self.instance_status[inst].get('pkg') \
+                                                      for inst in upgrade_pkgs])
+                self.RefreshPackages()
+                for inst in upgrade_pkgs:
+                    pkg_entry = self.instance_status[inst].get('pkg')
+                    # Reverify all the packages that we might have just changed.
+                    # There may be multiple instances per package, only do the 
+                    # verification once.
+                    if pkg_entry in upgrade_pkg_set:
+                        self.logger.debug("Reverifying Upgradable Package %s" % \
+                                                                      (pkg_entry.get('name')))
+                        upgrade_pkg_set.remove(pkg_entry)
+                        self.states[pkg_entry] = self.VerifyPackage(pkg_entry, 
+                                                          self.instance_status[inst].get('modlist'))
+                    else:
+                        # We already reverified this pacakge.
+                        continue
+            else:
+                # The rpm command failed.  No packages upgraded.
+                # Try upgrading instances individually.
+                self.logger.error("Single Pass for Upgrading Packages Failed")
+                upgraded_instances = []
+                for inst in upgrade_pkgs:
+                    upgrade_args = os.path.join(self.instance_status[inst].get('pkg').get('uri'), \
+                                                     inst.get('simplefile'))
+                    #self.logger.debug("rpm --upgrade --quiet --oldpackage --replacepkgs %s" % \
+                    #                                                      upgrade_args)
+                    cmdrc, output = self.cmd.run("rpm --upgrade --quiet --oldpackage --replacepkgs %s" % upgrade_args)
+                    if cmdrc == 0:
+                        upgraded_instances.append(inst)
+                    else:
+                        self.logger.debug("Package %s %s would not upgrade." % \
+                                              (self.instance_status[inst].get('pkg').get('name'),\
+                                               self.str_evra(inst)))
+
+                upgrade_pkg_set = set([self.instance_status[inst].get('pkg') \
+                                                      for inst in upgrade_pkgs])
+                self.RefreshPackages()
+                for inst in upgraded_instances:
+                    pkg_entry = self.instance_status[inst].get('pkg')
+                    # Reverify all the packages that we might have just changed.
+                    # There may be multiple instances per package, only do the
+                    # verification once.
+                    if pkg_entry in upgrade_pkg_set:
+                        self.logger.debug("Reverifying Upgradable Package %s" % \
+                                                                      (pkg_entry.get('name')))
+                        upgrade_pkg_set.remove(pkg_entry)
+                        self.states[pkg_entry] = self.VerifyPackage(pkg_entry, \
+                                                        self.instance_status[inst].get('modlist'))
+                    else:
+                        # We already reverified this pacakge.
+                        continue
+
+        for entry in [ent for ent in packages if self.states[ent]]:
+            self.modified.append(entry)
 
     def canInstall(self, entry):
         '''
@@ -348,39 +625,51 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
         instances = entry.findall('Instance')
 
         if not instances:
-            # Old non Instance format.
-            if [attr for attr in self.__ireq__[entry.tag] if attr not in entry.attrib]:
-                self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
-                                  % (entry.tag, entry.get('name')))
-                return False
-        else:
+            # Old non Instance format, unmodified.
             if entry.get('name') == 'gpg-pubkey':
                 # gpg-pubkey packages aren't really pacakges, so we have to do
                 # something a little different.
                 # Check that the Package Level has what we need for verification.
                 if [attr for attr in self.__gpg_ireq__[entry.tag] if attr not in entry.attrib]:
-                    self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
+                    self.logger.error("Incomplete information for entry %s:%s; cannot install" \
+                                      % (entry.tag, entry.get('name')))
+                    return False
+            else:
+                if [attr for attr in self.__ireq__[entry.tag] if attr not in entry.attrib]:
+                    self.logger.error("Incomplete information for entry %s:%s; cannot install" \
+                                      % (entry.tag, entry.get('name')))
+                    return False
+        else:
+            if entry.get('name') == 'gpg-pubkey':
+                # gpg-pubkey packages aren't really pacakges, so we have to do
+                # something a little different.
+                # Check that the Package Level has what we need for verification.
+                if [attr for attr in self.__new_gpg_ireq__[entry.tag] if attr not in entry.attrib]:
+                    self.logger.error("Incomplete information for entry %s:%s; cannot install" \
                                       % (entry.tag, entry.get('name')))
                     return False
                 # Check that the Instance Level has what we need for verification.
                 for inst in instances:
-                    if [attr for attr in self.__gpg_ireq__[inst.tag] if attr not in inst.attrib]:
-                        self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
+                    if [attr for attr in self.__new_gpg_ireq__[inst.tag] \
+                                 if attr not in inst.attrib]:
+                        self.logger.error("Incomplete information for entry %s:%s; cannot install"\
                                           % (inst.tag, inst.get('name')))
                         return False
             else:
                 # New format with Instances.
                 # Check that the Package Level has what we need for verification.
                 if [attr for attr in self.__new_ireq__[entry.tag] if attr not in entry.attrib]:
-                    self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
+                    self.logger.error("Incomplete information for entry %s:%s; cannot install" \
                                       % (entry.tag, entry.get('name')))
                     return False
                 # Check that the Instance Level has what we need for verification.
                 for inst in instances:
-                    if [attr for attr in self.__new_ireq__[inst.tag] if attr not in inst.attrib]:
-                        self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
-                                          % (inst.tag, inst.get('name')))
-                        return False
+                    if inst.tag == 'Instance':
+                        if [attr for attr in self.__new_ireq__[inst.tag] \
+                                     if attr not in inst.attrib]:
+                            self.logger.error("Incomplete information for entry %s:%s; cannot install" \
+                                              % (inst.tag, inst.get('name')))
+                            return False
         return True
 
     def canVerify(self, entry):
@@ -391,6 +680,9 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
                Old style Package
                New style Package with Instances
                pgp-pubkey packages
+
+           Also the old style entries get modified after the first 
+           VerifyPackage() run, so there needs to be a second test.
         '''
         if not self.handlesEntry(entry):
             return False
@@ -398,12 +690,7 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
         instances = entry.findall('Instance')
 
         if not instances:
-            # Old non Instance format.
-            if [attr for attr in self.__req__[entry.tag] if attr not in entry.attrib]:
-                self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
-                                  % (entry.tag, entry.get('name')))
-                return False
-        else:
+            # Old non Instance format, unmodified.
             if entry.get('name') == 'gpg-pubkey':
                 # gpg-pubkey packages aren't really pacakges, so we have to do 
                 # something a little different.
@@ -412,14 +699,29 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
                     self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
                                       % (entry.tag, entry.get('name')))
                     return False
+            else:
+                if [attr for attr in self.__req__[entry.tag] if attr not in entry.attrib]:
+                    self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
+                                      % (entry.tag, entry.get('name')))
+                    return False
+        else:
+            if entry.get('name') == 'gpg-pubkey':
+                # gpg-pubkey packages aren't really pacakges, so we have to do 
+                # something a little different.
+                # Check that the Package Level has what we need for verification.
+                if [attr for attr in self.__new_gpg_req__[entry.tag] if attr not in entry.attrib]:
+                    self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
+                                      % (entry.tag, entry.get('name')))
+                    return False
                 # Check that the Instance Level has what we need for verification.
                 for inst in instances:
-                    if [attr for attr in self.__gpg_req__[inst.tag] if attr not in inst.attrib]:
+                    if [attr for attr in self.__new_gpg_req__[inst.tag] \
+                                 if attr not in inst.attrib]:
                         self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
                                           % (inst.tag, inst.get('name')))
                         return False
             else:
-                # New format with Instances.
+                # New format with Instances, or old style modified.
                 # Check that the Package Level has what we need for verification.
                 if [attr for attr in self.__new_req__[entry.tag] if attr not in entry.attrib]:
                     self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
@@ -427,108 +729,157 @@ class RPMng(Bcfg2.Client.Tools.PkgTool):
                     return False
                 # Check that the Instance Level has what we need for verification.
                 for inst in instances:
-                    if [attr for attr in self.__new_req__[inst.tag] if attr not in inst.attrib]:
-                        self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
-                                          % (inst.tag, inst.get('name')))
-                        return False
+                    if inst.tag == 'Instance':
+                        if [attr for attr in self.__new_req__[inst.tag] \
+                                     if attr not in inst.attrib]:
+                            self.logger.error("Incomplete information for entry %s:%s; cannot verify" \
+                                              % (inst.tag, inst.get('name')))
+                            return False
         return True
 
     def FindExtraPackages(self):
         '''
            Find extra packages
         '''
-        extra_packages = []
-        packages = {}
-        for entry in self.getSupportedEntries():
-            packages[entry.get('name')] = entry
-
-        for name, pkg_list in self.installed.iteritems():
-            extra_entry = Bcfg2.Client.XML.Element('Package', name=name, type=self.pkgtype)
-            if packages.get(name, None) != None:
-                # There is supposed to be at least one instance installed.
-                instances = packages[name].findall('Instance')
-                if not instances:
-                    instances = [ packages[name] ]
-                if name in self.installOnlyPkgs:
-                    for installed_inst in pkg_list:
-                        not_found = True
-                        for inst in instances:
-                            if inst.get('epoch', None) != None:
-                                epoch = int(inst.get('epoch'))
-                            else:
-                                epoch = None
-                            if epoch == installed_inst.get('epoch') and \
-                               inst.get('version') == installed_inst.get('version') and \
-                               inst.get('release') == installed_inst.get('release') and \
-                               inst.get('arch', None) == installed_inst.get('arch'):
-                                not_found = False
-                                break
-                        if not_found == True:
-                            # Extra package.
-                            self.logger.info("Extra InstallOnlyPackage %s %s:%s-%s.%s." % \
-                                 (name, installed_inst.get('epoch'), \
-                                        installed_inst.get('version'), \
-                                        installed_inst.get('release'), \
-                                        installed_inst.get('arch')))
-                            if inst.tag == 'Package':
-                                Bcfg2.Client.XML.SubElement(extra_entry, \
-                                             'Instance', 
-                                             version = installed_inst.get('version'), \
-                                             release = installed_inst.get('release'))
-                            else:
-                                Bcfg2.Client.XML.SubElement(extra_entry, \
-                                             'Instance', 
-                                             epoch = str(installed_inst.get('epoch')),\
-                                             version = installed_inst.get('version'), \
-                                             release = installed_inst.get('release'), \
-                                             arch = installed_inst.get('arch', ''))
-                else:
-                    # Normal package, only check arch.
-                    for installed_inst in pkg_list:
-                        not_found = True
-                        for inst in instances:
-                            if installed_inst.get('arch') == inst.get('arch'):
-                                not_found = False
-                                break
-                        if not_found:
-                            self.logger.info("Extra Normal Package Instance %s %s:%s-%s.%s." % \
-                                 (name, installed_inst.get('epoch'), \
-                                        installed_inst.get('version'), \
-                                        installed_inst.get('release'), \
-                                        installed_inst.get('arch')))
-                            if inst.tag == 'Package':
-                                Bcfg2.Client.XML.SubElement(extra_entry, \
-                                             'Instance', 
-                                             version = installed_inst.get('version'), \
-                                             release = installed_inst.get('release'))
-                            else:
-                                Bcfg2.Client.XML.SubElement(extra_entry, \
-                                             'Instance', 
-                                             epoch = str(installed_inst.get('epoch')),\
-                                             version = installed_inst.get('version'), \
-                                             release = installed_inst.get('release'), \
-                                             arch = installed_inst.get('arch', ''))
-            else:
-                # Extra package.
-                self.logger.info("No instances of Package %s should be installed." % (name))
-                for installed_inst in pkg_list:
-                    if inst.tag == 'Package':
-                        Bcfg2.Client.XML.SubElement(extra_entry, \
-                                     'Instance', 
+        packages = [entry.get('name') for entry in self.getSupportedEntries()]
+        extras = []
+
+        for (name, instances) in self.installed.iteritems():
+            if name not in packages:
+                extra_entry = Bcfg2.Client.XML.Element('Package', name=name, type=self.pkgtype)
+                for installed_inst in instances:
+                    self.logger.info("Extra Package %s %s." % \
+                                     (name, self.str_evra(installed_inst)))
+                    Bcfg2.Client.XML.SubElement(extra_entry, \
+                                                'Instance', 
+                                                epoch = str(installed_inst.get('epoch', '')),\
+                                                version = installed_inst.get('version'), \
+                                                release = installed_inst.get('release'), \
+                                                arch = installed_inst.get('arch', ''))
+                    extras.append(extra_entry)
+        return extras
+
+
+    def FindExtraInstances(self, pkg_entry, installed_entry):
+        '''
+            Check for installed instances that are not in the config.
+            Return a Package Entry with Instances to remove, or None if there
+            are no Instances to remove.
+        '''
+        name = pkg_entry.get('name')
+        extra_entry = Bcfg2.Client.XML.Element('Package', name=name, type=self.pkgtype)
+        instances = [inst for inst in pkg_entry if inst.tag == 'Instance' or inst.tag == 'Package']
+        if name in self.installOnlyPkgs:
+            for installed_inst in installed_entry:
+                not_found = True
+                for inst in instances:
+                    if self.pkg_vr_equal(inst, installed_inst) or \
+                       self.inst_evra_equal(inst, installed_inst):
+                        not_found = False
+                        break
+                if not_found == True:
+                    # Extra package.
+                    self.logger.info("Extra InstallOnlyPackage %s %s." % \
+                                               (name, self.str_evra(installed_inst)))
+                    tmp_entry = Bcfg2.Client.XML.SubElement(extra_entry, 'Instance', \
                                      version = installed_inst.get('version'), \
                                      release = installed_inst.get('release'))
-                    else:
-                        Bcfg2.Client.XML.SubElement(extra_entry, \
+                    if installed_inst.get('epoch', None) != None:
+                        tmp_entry.set('epoch', str(installed_inst.get('epoch')))
+                    if installed_inst.get('arch', None) != None:
+                        tmp_entry.set('arch', installed_inst.get('arch'))
+        else:
+            # Normal package, only check arch.
+            for installed_inst in installed_entry:
+                not_found = True
+                for inst in instances:
+                    if installed_inst.get('arch', None) == inst.get('arch', None) or\
+                       inst.tag == 'Package':
+                        not_found = False
+                        break
+                if not_found:
+                    self.logger.info("Extra Normal Package Instance %s %s" % \
+                                                        (name, self.str_evra(installed_inst)))
+                    Bcfg2.Client.XML.SubElement(extra_entry, \
                                      'Instance', 
-                                     epoch = str(installed_inst.get('epoch')),\
+                                     epoch = str(installed_inst.get('epoch', '')),\
                                      version = installed_inst.get('version'), \
                                      release = installed_inst.get('release'), \
                                      arch = installed_inst.get('arch', ''))
-            if len(extra_entry) > 0:
-                extra_packages.append(extra_entry)
-            else:
-                del extra_entry
-        return extra_packages
 
+        if len(extra_entry) == 0:
+            extra_entry = None
 
- 
+        return extra_entry
+
+    def Inventory(self, structures=[]):
+        '''
+           Wrap the Tool.Inventory() method with its own rpm.TransactionSet() 
+           and an explicit closeDB() as the close wasn't happening and DB4 
+           locks were getting left behind on the RPM database creating a nice 
+           mess.
+
+           ***** Do performance comparison with the transctionset/closeDB
+                 moved into rpmtools, which would mean a transactionset/closeDB
+                 per VerifyPackage() call (meaning one per RPM package) rather 
+                 than one for the whole system.
+        '''
+        self.vp_ts = rpmtools.rpmtransactionset()
+        Bcfg2.Client.Tools.Tool.Inventory(self)
+        # Tool is still an old style class, so super doesn't work. Change it.
+        #super(RPMng, self).Inventory()
+        self.vp_ts.closeDB()
+
+    def str_evra(self, instance):
+        '''
+            Convert evra dict entries to a string.
+        '''
+        return '%s:%s-%s.%s' % (instance.get('epoch', '*'), instance.get('version', '*'),
+                                instance.get('release', '*'), instance.get('arch', '*'))
+
+    def pkg_vr_equal(self, config_entry, installed_entry):
+        '''
+            Compare old style entry to installed entry.  Which means ignore
+            the epoch and arch.
+        '''
+        if (config_entry.tag == 'Package' and \
+            config_entry.get('version') == installed_entry.get('version') and \
+            config_entry.get('release') == installed_entry.get('release')):
+            return True
+        else:
+            return False
+
+    def inst_evra_equal(self, config_entry, installed_entry):
+        '''
+            Compare new style instance to installed entry.
+        '''
+
+        if config_entry.get('epoch', None) != None:
+            epoch = int(config_entry.get('epoch'))
+        else:
+            epoch = None
+
+        if (config_entry.tag == 'Instance' and\
+            epoch == installed_entry.get('epoch', None) and \
+            config_entry.get('version') == installed_entry.get('version') and \
+            config_entry.get('release') == installed_entry.get('release') and \
+            config_entry.get('arch', None) == installed_entry.get('arch', None)):
+            return True
+        else:
+            return False
+
+    def getinstalledgpg(self):
+        ''' 
+           Create a list of installed GPG key IDs.
+
+           The pgp-pubkey package version is the least significant 4 bytes
+           (big-endian) of the key ID which is good enough for our purposes.
+        ''' 
+        init_ts = rpmtools.rpmtransactionset()
+        init_ts.setVSFlags(rpm._RPMVSF_NODIGESTS|rpm._RPMVSF_NOSIGNATURES)
+        gpg_hdrs = rpmtools.getheadersbykeyword(init_ts, **{'name':'gpg-pubkey'})
+        keyids = [ header[rpm.RPMTAG_VERSION] for header in gpg_hdrs]
+        keyids.append('None')
+        init_ts.closeDB()
+        del init_ts
+        return keyids