--- /dev/null
+#! /usr/bin/python
+import zypp
+# ========================================================================================
+
+def poolInstall( Z, capstr ):
+ print "Request: install %s" % capstr
+ Z.resolver().addRequire( zypp.Capability( capstr ) )
+
+def poolRemove( Z, capstr ):
+ print "Request: delete %s" % capstr
+ Z.resolver().addConflict( zypp.Capability( capstr ) )
+
+def poolPrintTransaction( Z ):
+ todo = Z.pool().getTransaction()
+ for item in todo._toDelete:
+ print '-- %s | %s-%s | %s' % (item.repoInfo().alias(), item.name(), item.edition(), item.status() )
+ for item in todo._toInstall:
+ print '++ %s | %s-%s | %s' % (item.repoInfo().alias(), item.name(), item.edition(), item.status() )
+
+def poolResolve( Z ):
+ print "Resolve pool:"
+ while not Z.resolver().resolvePool():
+ # Print _all_ problems and possible solutions:
+ problems = Z.resolver().problems()
+ pn = 0
+ for problem in problems:
+ pn += 1
+ print "Problem %d:" % pn
+ print "=============================="
+ print problem.description()
+ if problem.details():
+ print problem.details()
+ print "------------------------------"
+ sn = 0
+ for solution in problem.solutions():
+ sn += 1
+ print "Solution %d.%d:" % ( pn, sn )
+ print solution.description()
+ if solution.details():
+ print solution.details()
+ print "=============================="
+ print
+
+ # Faked user interaction: stupidly pick all 1st solutions (don't do this in real life!)
+ #
+ # In real life you probably pick just a single solution
+ # and re-solve immedaitely, because one solution may solve
+ # multiple ploblems - or create new ones.
+ #
+ pickedSolutions = zypp.ProblemSolutionList()
+ pn = 0
+ for problem in problems:
+ pn += 1
+ sn = 0
+ for solution in problem.solutions():
+ sn += 1
+ print "Stupidly pick solution %d.%d" % ( pn, sn )
+ pickedSolutions.push_back( solution )
+ break
+ # Apply picked solutions:
+ Z.resolver().applySolutions( pickedSolutions )
+
+ #
+ print "Example stops here instead of starting a new iteration..."
+ print
+ raise BaseException("Solver Error")
+
+ poolPrintTransaction( Z )
+ print "[done]"
+
+def poolUpdate( Z ):
+ # In contrary to
+ print "Update pool:"
+ Z.resolver().doUpdate()
+ poolPrintTransaction( Z )
+ print "[done]"
+
+# ========================================================================================
+Z = zypp.ZYppFactory_instance().getZYpp()
+
+# Load system rooted at "/"...
+#
+Z.initializeTarget( zypp.Pathname("/") )
+Z.target().load();
+
+# Load all enabled repositories...
+#
+repoManager = zypp.RepoManager()
+for repo in repoManager.knownRepositories():
+ if not repo.enabled():
+ continue
+ if not repoManager.isCached( repo ):
+ repoManager.buildCache( repo )
+ repoManager.loadFromCache( repo );
+
+# Now all installed and available items are in the pool:
+#
+print "Known items: %d" % ( Z.pool().size() )
+if True:
+ # Iterate the pool to query items. PoolItems are not just packages
+ # but also patterns, patches, products, ...
+ # PoolItem provides the common attributes and status. For specific
+ # attibutes cast the item inot the specific kind.
+ print "Printing just the Products..."
+ for item in Z.pool():
+ if not zypp.isKindProduct( item ):
+ continue
+
+ if item.status().isInstalled():
+ t = "i"
+ else:
+ t = "*"
+ print "%s %s:%s-%s.%s\t(%s)" % ( t,
+ item.kind(),
+ item.name(),
+ item.edition(),
+ item.arch(),
+ item.repoInfo().alias() )
+
+ # How to access e.g. product specific attributes:
+ if zypp.isKindProduct( item ):
+ prod = zypp.asKindProduct( item )
+ print " %s (%s)" % ( prod.shortName(), prod.flavor() )
+ print
+
+# Building and resolving a transaction:
+#
+doUpdate = False
+if doUpdate:
+ # Simply try to update all installed packages:
+ poolUpdate( Z )
+else:
+ # Add jobs to the pools resolver
+ # and finally resolve the jobs.
+ poolInstall( Z, "libzypp = 13.9.0-13.1" )
+ poolInstall( Z, "pattern:unknown" )
+ poolRemove( Z, "xteddy < 1.0" )
+ poolResolve( Z )
+
+# finally install (here dryRun)
+#
+policy = zypp.ZYppCommitPolicy()
+policy.syncPoolAfterCommit( False )
+policy.dryRun( True )
+
+result = Z.commit( policy )
+print result
projects / platform / upstream / libzypp-bindings.git / commitdiff