libzypp  17.31.31
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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9  * version 2, as published by the Free Software Foundation.
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11  * This program is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
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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/solver/Types.h>
34 #include <zypp/base/SerialNumber.h>
35 
37 namespace zypp
38 {
39  namespace sat
40  {
41  class Transaction;
42  }
44  namespace solver
45  {
47  namespace detail
48  {
49  class SATResolver;
50  typedef std::list<PoolItem> PoolItemList;
51  typedef std::set<PoolItem> PoolItemSet;
52 
54 //
55 // CLASS NAME : Resolver
63 class Resolver : private base::NonCopyable
64 {
65  typedef std::multimap<PoolItem,ItemCapKind> ItemCapKindMap;
66  private:
67  ResPool _pool;
68  SATResolver *_satResolver;
69  SerialNumberWatcher _poolchanged;
70 
71  CapabilitySet _extra_requires;
72  CapabilitySet _extra_conflicts;
73  std::set<Repository> _upgradeRepos;
74 
75  // Regard dependencies of the item weak onl
76  PoolItemList _addWeak;
77 
80  bool _upgradeMode:1; // Resolver has been called with doUpgrade
81  bool _updateMode:1; // Resolver has been called with doUpdate
82  bool _verifying:1; // The system will be checked
83  bool _solveSrcPackages:1; // whether to generate solver jobs for selected source packges.
84  bool _ignoreAlreadyRecommended:1; // ignore recommended packages that have already been recommended by the installed packages
86 
92  bool _applyDefault_focus:1;
93  bool _applyDefault_forceResolve:1;
94  bool _applyDefault_cleandepsOnRemove:1;
95  bool _applyDefault_onlyRequires:1;
96  bool _applyDefault_allowDowngrade:1;
97  bool _applyDefault_allowNameChange:1;
98  bool _applyDefault_allowArchChange:1;
99  bool _applyDefault_allowVendorChange:1;
100  bool _applyDefault_dupAllowDowngrade:1;
101  bool _applyDefault_dupAllowNameChange:1;
102  bool _applyDefault_dupAllowArchChange:1;
103  bool _applyDefault_dupAllowVendorChange:1;
105 
106  // Additional QueueItems which has to be regarded by the solver
107  // This will be used e.g. by solution actions
108  solver::detail::SolverQueueItemList _removed_queue_items;
109  solver::detail::SolverQueueItemList _added_queue_items;
110 
111  // Additional information about the solverrun
112  ItemCapKindMap _isInstalledBy;
113  ItemCapKindMap _installs;
114  ItemCapKindMap _satifiedByInstalled;
115  ItemCapKindMap _installedSatisfied;
116 
117  // helpers
118  void collectResolverInfo();
119 
120  // Unmaintained packages which does not fit to the updated system
121  // (broken dependencies) will be deleted.
122  // returns true if solving was successful
123  bool checkUnmaintainedItems ();
124 
125  void solverInit();
126 
127  public:
128 
129  Resolver( const ResPool & pool );
130  virtual ~Resolver();
131 
132  // ---------------------------------- I/O
133 
134  std::ostream & dumpOn( std::ostream & str ) const;
135 
136  friend std::ostream& operator<<( std::ostream& str, const Resolver & obj )
137  { return obj.dumpOn (str); }
138 
139  // ---------------------------------- methods
140 
141  ResPool pool() const;
142  void setPool( const ResPool & pool ) { _pool = pool; }
143 
153  void setDefaultSolverFlags( bool all_r );
154 
155  void addUpgradeRepo( Repository repo_r ) { if ( repo_r && ! repo_r.isSystemRepo() ) _upgradeRepos.insert( repo_r ); }
156  bool upgradingRepo( Repository repo_r ) const { return( _upgradeRepos.find( repo_r ) != _upgradeRepos.end() ); }
157  void removeUpgradeRepo( Repository repo_r ) { _upgradeRepos.erase( repo_r ); }
158  void removeUpgradeRepos() { _upgradeRepos.clear(); }
159  const std::set<Repository> & upgradeRepos() const { return _upgradeRepos; }
160 
161  void addExtraRequire( const Capability & capability );
162  void removeExtraRequire( const Capability & capability );
163  void addExtraConflict( const Capability & capability );
164  void removeExtraConflict( const Capability & capability );
165 
166  void removeQueueItem( SolverQueueItem_Ptr item );
167  void addQueueItem( SolverQueueItem_Ptr item );
168 
169  CapabilitySet extraRequires() const { return _extra_requires; }
170  CapabilitySet extraConflicts() const { return _extra_conflicts; }
171 
172  void addWeak( const PoolItem & item );
173 
174  bool verifySystem();
175  bool resolvePool();
176  bool resolveQueue( SolverQueueItemList & queue );
177  void doUpdate();
178 
179  bool doUpgrade();
180  PoolItemList problematicUpdateItems() const;
181 
184  bool ignoreAlreadyRecommended() const { return _ignoreAlreadyRecommended; }
185  void setIgnoreAlreadyRecommended( bool yesno_r ) { _ignoreAlreadyRecommended = yesno_r; }
186 
187  bool isUpgradeMode() const { return _upgradeMode; }// Resolver has been called with doUpgrade
188  void setUpgradeMode( bool yesno_r ) { _upgradeMode = yesno_r; }
189 
190  bool isUpdateMode() const { return _updateMode; } // Resolver has been called with doUpdate
191  void setUpdateMode( bool yesno_r ) { _updateMode = yesno_r; }
192 
193  bool isVerifyingMode() const { return _verifying; } // The system will be checked
194  void setVerifyingMode( TriBool state_r ) { _verifying = indeterminate(state_r) ? false : bool(state_r); }
195 
196  bool solveSrcPackages() const { return _solveSrcPackages; }
197  void setSolveSrcPackages( TriBool state_r ) { _solveSrcPackages = indeterminate(state_r) ? false : bool(state_r); }
199 
200  void setFocus( ResolverFocus focus_r );
201  ResolverFocus focus() const;
202 
203 #define ZOLV_FLAG_TRIBOOL( ZSETTER, ZGETTER ) \
204  void ZSETTER( TriBool state_r ); \
205  bool ZGETTER() const; \
206 
207  ZOLV_FLAG_TRIBOOL( setForceResolve ,forceResolve )
208  ZOLV_FLAG_TRIBOOL( setCleandepsOnRemove ,cleandepsOnRemove )
209  ZOLV_FLAG_TRIBOOL( setOnlyRequires ,onlyRequires )
210  ZOLV_FLAG_TRIBOOL( setAllowDowngrade ,allowDowngrade )
211  ZOLV_FLAG_TRIBOOL( setAllowNameChange ,allowNameChange )
212  ZOLV_FLAG_TRIBOOL( setAllowArchChange ,allowArchChange )
213  ZOLV_FLAG_TRIBOOL( setAllowVendorChange ,allowVendorChange )
214  ZOLV_FLAG_TRIBOOL( dupSetAllowDowngrade ,dupAllowDowngrade )
215  ZOLV_FLAG_TRIBOOL( dupSetAllowNameChange ,dupAllowNameChange )
216  ZOLV_FLAG_TRIBOOL( dupSetAllowArchChange ,dupAllowArchChange )
217  ZOLV_FLAG_TRIBOOL( dupSetAllowVendorChange ,dupAllowVendorChange )
218 #undef ZOLV_FLAG_TRIBOOL
219 
220  ResolverProblemList problems() const;
221 
222  void applySolutions( const ProblemSolutionList & solutions );
223  bool applySolution( const ProblemSolution & solution );
224 
225  // Return the Transaction computed by the last solver run.
226  sat::Transaction getTransaction();
227 
228  // reset all SOLVER transaction in pool
229  void undo();
230 
231  void reset( bool keepExtras = false );
232 
233  // Get more information about the solverrun
234  // Which item will be installed by another item or triggers an item for
235  // installation
236  ItemCapKindList isInstalledBy( const PoolItem & item );
237  ItemCapKindList installs( const PoolItem & item );
238  ItemCapKindList satifiedByInstalled (const PoolItem & item );
239  ItemCapKindList installedSatisfied( const PoolItem & item );
240 
241 public:
243  sat::detail::CSolver * get() const;
244 };
245 
247  };// namespace detail
250  };// namespace solver
253 };// namespace zypp
255 #endif // ZYPP_USE_RESOLVER_INTERNALS
256 #endif // ZYPP_SOLVER_DETAIL_RESOLVER_H
std::list< ProblemSolution_Ptr > ProblemSolutionList
Definition: ProblemTypes.h:43
Simple serial number watcher.
Definition: SerialNumber.h:122
bool isSystemRepo() const
Return whether this is the system repository.
Definition: Repository.cc:53
virtual std::ostream & dumpOn(std::ostream &str) const
Overload to realize std::ostream & operator<<.
ResolverFocus
The resolver&#39;s general attitude.
Definition: ResolverFocus.h:21
String related utilities and Regular expression matching.
Libsolv transaction wrapper.
Definition: Transaction.h:51
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
_onlyRequires _dup_allowdowngrade dupAllowArchChange
Definition: Resolver.cc:169
boost::noncopyable NonCopyable
Ensure derived classes cannot be copied.
Definition: NonCopyable.h:26
std::list< ResolverProblem_Ptr > ResolverProblemList
Definition: ProblemTypes.h:46
Dependency resolver interface.
Definition: Resolver.h:44
std::ostream & dumpOn(std::ostream &str, const Capability &obj)
Definition: Capability.cc:580
_onlyRequires dupAllowDowngrade
Definition: Resolver.cc:167
std::unordered_set< Capability > CapabilitySet
Definition: Capability.h:33
Global ResObject pool.
Definition: ResPool.h:60
::s_Solver CSolver
Wrapped libsolv C data type exposed as backdoor.
Definition: PoolMember.h:65
std::list< ItemCapKind > ItemCapKindList
Definition: Types.h:41
std::ostream & operator<<(std::ostream &os, const SolutionActionList &actionlist)
A sat capability.
Definition: Capability.h:62
Combining sat::Solvable and ResStatus.
Definition: PoolItem.h:50
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:1
#define ZOLV_FLAG_TRIBOOL(ZSETTER, ZDEFAULT, ZGETTER)
Definition: Resolver.cc:142
Class representing one possible solution to a problem found during resolving.