libzypp  17.7.2
Resolver.h
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1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
2 /* Resolver.h
3  *
4  * Copyright (C) 2000-2002 Ximian, Inc.
5  * Copyright (C) 2005 SUSE Linux Products GmbH
6  *
7  * This program is free software; you can redistribute it and/or
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14  * General Public License for more details.
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21 
22 #ifndef ZYPP_SOLVER_DETAIL_RESOLVER_H
23 #define ZYPP_SOLVER_DETAIL_RESOLVER_H
24 #ifndef ZYPP_USE_RESOLVER_INTERNALS
25 #error Do not directly include this file!
26 #else
27 
28 #include <iosfwd>
29 #include <string>
30 #include <list>
31 #include <map>
32 
33 #include "zypp/ResPool.h"
34 #include "zypp/TriBool.h"
35 #include "zypp/base/SerialNumber.h"
36 #include "zypp/base/NonCopyable.h"
37 
38 #include "zypp/ProblemTypes.h"
39 #include "zypp/ResolverProblem.h"
40 #include "zypp/ProblemSolution.h"
41 #include "zypp/Capabilities.h"
42 #include "zypp/Capability.h"
43 
45 namespace zypp
46 {
47  namespace sat
48  {
49  class Transaction;
50  }
52  namespace solver
53  {
55  namespace detail
56  {
57  class SATResolver;
58  typedef std::list<PoolItem> PoolItemList;
59  typedef std::set<PoolItem> PoolItemSet;
60 
62 //
63 // CLASS NAME : Resolver
71 class Resolver : private base::NonCopyable
72 {
73  typedef std::multimap<PoolItem,ItemCapKind> ItemCapKindMap;
74  private:
75  ResPool _pool;
76  SATResolver *_satResolver;
77  SerialNumberWatcher _poolchanged;
78 
79  CapabilitySet _extra_requires;
80  CapabilitySet _extra_conflicts;
81  std::set<Repository> _upgradeRepos;
82 
83  // Regard dependencies of the item weak onl
84  PoolItemList _addWeak;
85 
88  bool _upgradeMode; // Resolver has been called with doUpgrade
89  bool _updateMode; // Resolver has been called with doUpdate
90  bool _verifying; // The system will be checked
91  bool _onlyRequires; // do install required resolvables only
92  // no recommended resolvables, language
93  // packages, hardware packages (modalias)
94  bool _solveSrcPackages; // whether to generate solver jobs for selected source packges.
95  bool _cleandepsOnRemove; // whether removing a package should also remove no longer needed requirements
96 
97  bool _ignoreAlreadyRecommended; //ignore recommended packages that have already been recommended by the installed packages
99 
100  // Additional QueueItems which has to be regarded by the solver
101  // This will be used e.g. by solution actions
102  solver::detail::SolverQueueItemList _removed_queue_items;
103  solver::detail::SolverQueueItemList _added_queue_items;
104 
105  // Additional information about the solverrun
106  ItemCapKindMap _isInstalledBy;
107  ItemCapKindMap _installs;
108  ItemCapKindMap _satifiedByInstalled;
109  ItemCapKindMap _installedSatisfied;
110 
111  // helpers
112  void collectResolverInfo();
113 
114  // Unmaintained packages which does not fit to the updated system
115  // (broken dependencies) will be deleted.
116  // returns true if solving was successful
117  bool checkUnmaintainedItems ();
118 
119  void solverInit();
120 
121  public:
122 
123  Resolver( const ResPool & pool );
124  virtual ~Resolver();
125 
126  // ---------------------------------- I/O
127 
128  std::ostream & dumpOn( std::ostream & str ) const;
129 
130  friend std::ostream& operator<<( std::ostream& str, const Resolver & obj )
131  { return obj.dumpOn (str); }
132 
133  // ---------------------------------- methods
134 
135  ResPool pool() const;
136  void setPool( const ResPool & pool ) { _pool = pool; }
137 
138  void addUpgradeRepo( Repository repo_r ) { if ( repo_r && ! repo_r.isSystemRepo() ) _upgradeRepos.insert( repo_r ); }
139  bool upgradingRepo( Repository repo_r ) const { return( _upgradeRepos.find( repo_r ) != _upgradeRepos.end() ); }
140  void removeUpgradeRepo( Repository repo_r ) { _upgradeRepos.erase( repo_r ); }
141  void removeUpgradeRepos() { _upgradeRepos.clear(); }
142  const std::set<Repository> & upgradeRepos() const { return _upgradeRepos; }
143 
144  void addExtraRequire( const Capability & capability );
145  void removeExtraRequire( const Capability & capability );
146  void addExtraConflict( const Capability & capability );
147  void removeExtraConflict( const Capability & capability );
148 
149  void removeQueueItem( SolverQueueItem_Ptr item );
150  void addQueueItem( SolverQueueItem_Ptr item );
151 
152  CapabilitySet extraRequires() const { return _extra_requires; }
153  CapabilitySet extraConflicts() const { return _extra_conflicts; }
154 
155  void addWeak( const PoolItem & item );
156 
157  bool verifySystem();
158  bool resolvePool();
159  bool resolveQueue( SolverQueueItemList & queue );
160  void doUpdate();
161 
162  bool doUpgrade();
163  PoolItemList problematicUpdateItems() const;
164 
167  bool ignoreAlreadyRecommended() const { return _ignoreAlreadyRecommended; }
168  void setIgnoreAlreadyRecommended( bool yesno_r ) { _ignoreAlreadyRecommended = yesno_r; }
169 
170  bool onlyRequires () const { return _onlyRequires; }
171  void setOnlyRequires( TriBool state_r );
172 
173  bool isUpgradeMode() const { return _upgradeMode; }// Resolver has been called with doUpgrade
174  void setUpgradeMode( bool yesno_r ) { _upgradeMode = yesno_r; }
175 
176  bool isUpdateMode() const { return _updateMode; } // Resolver has been called with doUpdate
177  void setUpdateMode( bool yesno_r ) { _updateMode = yesno_r; }
178 
179  bool isVerifyingMode() const { return _verifying; } // The system will be checked
180  void setVerifyingMode( TriBool state_r ) { _verifying = indeterminate(state_r) ? false : bool(state_r); }
181 
182  bool solveSrcPackages() const { return _solveSrcPackages; }
183  void setSolveSrcPackages( TriBool state_r ) { _solveSrcPackages = indeterminate(state_r) ? false : bool(state_r); }
184 
185  bool cleandepsOnRemove() const { return _cleandepsOnRemove; }
186  void setCleandepsOnRemove( TriBool state_r );
188 
189 #define ZOLV_FLAG_TRIBOOL( ZSETTER, ZGETTER ) \
190  void ZSETTER( TriBool state_r ); \
191  bool ZGETTER() const; \
192 
193  ZOLV_FLAG_TRIBOOL( setForceResolve, forceResolve )
194 
195  ZOLV_FLAG_TRIBOOL( setAllowDowngrade, allowDowngrade )
196  ZOLV_FLAG_TRIBOOL( setAllowNameChange, allowNameChange )
197  ZOLV_FLAG_TRIBOOL( setAllowArchChange, allowArchChange )
198  ZOLV_FLAG_TRIBOOL( setAllowVendorChange, allowVendorChange )
199 
200  ZOLV_FLAG_TRIBOOL( dupSetAllowDowngrade, dupAllowDowngrade )
201  ZOLV_FLAG_TRIBOOL( dupSetAllowNameChange, dupAllowNameChange )
202  ZOLV_FLAG_TRIBOOL( dupSetAllowArchChange, dupAllowArchChange )
203  ZOLV_FLAG_TRIBOOL( dupSetAllowVendorChange, dupAllowVendorChange )
204 
205 #undef ZOLV_FLAG_TRIBOOL
206 
207  ResolverProblemList problems() const;
208 
209  void applySolutions( const ProblemSolutionList & solutions );
210  bool applySolution( const ProblemSolution & solution );
211 
212  // Return the Transaction computed by the last solver run.
213  sat::Transaction getTransaction();
214 
215  // reset all SOLVER transaction in pool
216  void undo();
217 
218  void reset( bool keepExtras = false );
219 
220  // Get more information about the solverrun
221  // Which item will be installed by another item or triggers an item for
222  // installation
223  ItemCapKindList isInstalledBy( const PoolItem & item );
224  ItemCapKindList installs( const PoolItem & item );
225  ItemCapKindList satifiedByInstalled (const PoolItem & item );
226  ItemCapKindList installedSatisfied( const PoolItem & item );
227 
228 };
229 
231  };// namespace detail
234  };// namespace solver
237 };// namespace zypp
239 #endif // ZYPP_USE_RESOLVER_INTERNALS
240 #endif // ZYPP_SOLVER_DETAIL_RESOLVER_H
std::list< ProblemSolution_Ptr > ProblemSolutionList
Definition: ProblemTypes.h:43
String related utilities and Regular expression matching.
std::list< SolverQueueItem_Ptr > SolverQueueItemList
Definition: Types.h:45
boost::logic::tribool TriBool
3-state boolean logic (true, false and indeterminate).
Definition: String.h:30
boost::noncopyable NonCopyable
Ensure derived classes cannot be copied.
Definition: NonCopyable.h:26
std::list< ResolverProblem_Ptr > ResolverProblemList
Definition: ProblemTypes.h:46
ostream & operator<<(ostream &os, const SolutionActionList &actionlist)
std::ostream & dumpOn(std::ostream &str, const Capability &obj)
Definition: Capability.cc:444
std::unordered_set< Capability > CapabilitySet
Definition: Capability.h:33
std::list< ItemCapKind > ItemCapKindList
Definition: Types.h:41
ZOLV_FLAG_TRIBOOL(setAllowNameChange, allowNameChange, _allownamechange, true) ZOLV_FLAG_TRIBOOL(setAllowVendorChange
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:1