examples/rbsolv

   1 #!/usr/bin/ruby
   2
   3 #  bool: method?
   4 #  inplace mod: method!
   5 #  set method: method=
   6
   7 # map  => collect
   8 # grep => find_all
   9
  10 require 'solv'
  11
  12 def depglob(pool, name, globname, globdep)
  13   id = pool.str2id(name, 0)
  14   if id != 0
  15     match = false
  16     providers = pool.providers(id)
  17     if globname && providers.find {|s| s.nameid == id }
  18       return [ pool.Job(Solv::Job::SOLVER_SOLVABLE_NAME, id) ]
  19     end
  20     if !providers.empty?
  21       puts "[using capability match for '#{name}']" if globname && globdep
  22       return [ pool.Job(Solv::Job::SOLVER_SOLVABLE_PROVIDES, id) ]
  23     end
  24   end
  25   return [] unless name =~ /[\[*?]/;
  26   if globname
  27     idmatches = {}
  28     for d in pool.Dataiterator(0, Solv::SOLVABLE_NAME, name, Solv::Dataiterator::SEARCH_GLOB)
  29       s = d.solvable
  30       idmatches[s.nameid] = 1 if s.installable?
  31     end
  32     if !idmatches.empty?
  33       return idmatches.keys.sort.collect { |id| pool.Job(Solv::Job::SOLVER_SOLVABLE_NAME, id) }
  34     end
  35   end
  36   if globdep
  37     idmatches = pool.matchprovidingids(name, Solv::Dataiterator::SEARCH_GLOB);
  38     if !idmatches.empty?
  39       puts "[using capability match for '#{name}']"
  40       return idmatches.sort.collect { |id| pool.Job(Solv::Job::SOLVER_SOLVABLE_PROVIDES, id) }
  41     end
  42   end
  43   return []
  44 end
  45
  46
  47 pool = Solv::Pool.new()
  48 repo = pool.add_repo("TEST")
  49 pool.installed = repo
  50 repo.add_solv("/var/cache/solv/@System.solv", 0);
  51
  52 pool.addfileprovides
  53 pool.createwhatprovides
  54 jobs = depglob(pool, ARGV[0], true, true)
  55 for job in jobs
  56   job.how |= Solv::Job::SOLVER_ERASE
  57 end
  58 solver = pool.Solver
  59 problems = solver.solve(jobs)
  60 for problem in problems
  61   puts "Problem #{problem.id}:"
  62   puts problem.findproblemrule.info.problemstr
  63   solutions = problem.solutions
  64   for solution in solutions
  65     puts "  Solution #{solution.id}:"
  66     elements = solution.elements
  67     for element in elements:
  68       puts "  - type #{element.type}"
  69     end
  70   end
  71 end