#include "zypp/base/PtrTypes.h"
#include "zypp/ResPool.h"
-#include "zypp/UpgradeStatistics.h"
-#include "zypp/solver/detail/Resolver.h"
-#include "zypp/solver/detail/ResolverContext.h"
+#include "zypp/PoolItem.h"
+#include "zypp/Capabilities.h"
+#include "zypp/Capability.h"
+
+#include "zypp/solver/detail/Types.h"
+
#include "zypp/ProblemTypes.h"
+#include "zypp/ResolverProblem.h"
+#include "zypp/ProblemSolution.h"
///////////////////////////////////////////////////////////////////
namespace zypp
{ /////////////////////////////////////////////////////////////////
-
+ namespace sat
+ {
+ class Transaction;
+ }
///////////////////////////////////////////////////////////////////
//
// CLASS NAME : Resolver
//
- /** Resolver interface.
- */
+ /**
+ * Dependency resolver interface.
+ *
+ * To resolve dependencies after making changes to the \ref ResPool (using
+ * \ref addRequire(), \ref addConflict(), \ref applySolutions(), or by making
+ * the changes directly on the \ref PoolItem status objects,
+ * call the \ref resolvePool() method.
+ */
class Resolver : public base::ReferenceCounted, private base::NonCopyable
{
public:
/**
* Resolve package dependencies:
*
- * Verify consistency of system
+ * Enter \ref systemVerification mode to monitor and repair dependencies
+ * of already installed packages, and solve immediately.
*
+ * Call \ref setSystemVerification to turn of this mode.
**/
- bool verifySystem (void);
+ bool verifySystem();
- /**
- * Establish state of 'higher level' Resolvables in Pool
- *
- * Must be called when dealing with non-package resolvables,
- * like Patches, Patterns, and Products
- *
- * Must be called with a 'plain' pool, e.g. no additonal
- * transacts set.
- *
- * return true if it was successful
- * return false if not (this will only happen if other
- * transactions are in the pool which will lead to
- * no solution)
- **/
- bool establishPool (void);
/**
- * go through all package 'freshen' dependencies and
- * schedule matches for installation.
+ * Resolve package dependencies:
*
- * To be called at begin of installation and upgrade.
- * Probably also useful after adding a new package
- * repository.
+ * Try to execute all pending transactions (there may be more than
+ * one!).
+ * The solver collects all transactions (install/delete resolvables)
+ * from the pool, generates task, solving it and writes the
+ * results back to pool
*
- * return true if it was successful
- * return false if not (this will only happen if other
- * transactions are in the pool which will lead to
- * no solution)
+ * Returns "true" on success (i.e., if there were no problems that
+ * need user interaction) and "false" if there were problems. In
+ * the latter case, use problems() and later applySolutions()
+ * below.
**/
- bool freshenPool (void);
+ bool resolvePool();
+
/**
* Resolve package dependencies:
*
- * Try to execute all pending transactions (there may be more than
- * one!).
+ * The solver works off the given queue and writes back the solution
+ * to pool.
*
* Returns "true" on success (i.e., if there were no problems that
* need user interaction) and "false" if there were problems. In
* the latter case, use problems() and later applySolutions()
* below.
+ * The solution could be that the solver remove/add some entries
+ * in the task queue. So make a new call of resolveQueue after you
+ * have applied any solution AND check the parameter "queue" if
+ * there has been any changes by the solver and adapt these changes
+ * to e.g. the selectables.
+ *
**/
- bool resolvePool (void);
+ bool resolveQueue( solver::detail::SolverQueueItemList & queue );
/*
* Undo solver changes done in resolvePool()
* Throwing away all ignored dependencies.
*/
- void undo( void );
+ void undo();
/*
- * Get the most recent resolver context
- *
- * It will be NULL if resolvePool() or establishPool() was never called.
- * Depending on the return code of the last resolvePool() call,
- * it _either_ points to a valid or an invalid solution.
+ * Resets solver information and verify option.
*/
- solver::detail::ResolverContext_Ptr context (void) const;
+ void reset();
+
/**
- * Do an distribution upgrade
+ * Do an distribution upgrade (DUP)
*
- * This will run a full upgrade on the pool, taking all upgrade
- * dependencies (provide/obsolete for package renames, split-
- * provides, etc.) into account and actually removing installed
- * packages if no upgrade exists.
+ * Perform a distribution upgrade. This performs an update of
+ * all packages with a special resolver algorithm which takes
+ * care of package splits, pattern and product updates,
+ * etc.
+ * This call also turns the solver into \ref upgradeMode, so
+ * consecutive calls to \ref resolvePool performed in this
+ * mode too. Call \ref setUpgradeMode to turn this mode off.
*
- * To be run with great caution. It basically brings your
- * system 'back to start'.
- * Quite helpful to get back to a 'sane state'. Quite disastrous
- * since you'll loose all non-distribution packages
+ * \see \ref addUpgradeRepo
**/
- void doUpgrade( UpgradeStatistics & opt_stats_r );
+ bool doUpgrade();
/**
- * Return the list of problematic update items
- * i.e. locked ones (due to foreign vendor)
+ * Update to newest package
+ *
+ * Install the newest version of your installed packages as
+ * far as possible. This means a newer package will NOT be
+ * installed if it generates dependency problems.
+ * So the user will not get an error message.
+ *
+ **/
+ void doUpdate( );
+
+ /**
+ * Unmaintained packages which does not fit to
+ * the updated system (broken dependencies) will be
+ * deleted.
+ * Return the list of deleted items.
+ * Note : This list is valid after the call doUpgrade() only.
**/
- std::list<PoolItem_Ref> problematicUpdateItems( void ) const;
+ std::list<PoolItem> problematicUpdateItems() const;
/**
* Return the dependency problems found by the last call to
**/
ResolverProblemList problems();
- /**
- * Return more solver information if an error has happened.
- **/
-
- std::list<std::string> problemDescription( void ) const;
/**
* Apply problem solutions. No more than one solution per problem
**/
void applySolutions( const ProblemSolutionList & solutions );
- Arch architecture() const;
- void setArchitecture( const Arch & arch);
+ /**
+ * Return the \ref Transaction computed by the last solver run.
+ */
+ sat::Transaction getTransaction();
- /**
+ /**
* Remove resolvables which are conflicts with others or
* have unfulfilled requirements.
* This behaviour is favourited by ZMD.
**/
- void setForceResolve (const bool force);
- const bool forceResolve();
+ void setForceResolve( bool force );
+ bool forceResolve() const;
+
+ /**
+ * Ignore recommended packages that were already recommended by
+ * the installed packages
+ **/
+ void setIgnoreAlreadyRecommended( bool yesno_r );
+ bool ignoreAlreadyRecommended() const;
+
+ /**
+ * Setting whether required packages are installed ONLY
+ * So recommended packages, language packages and packages which depend
+ * on hardware (modalias) will not be regarded.
+ **/
+ void setOnlyRequires( bool yesno_r );
+ void resetOnlyRequires(); // set back to default (described in zypp.conf)
+ bool onlyRequires() const;
/**
- * transact a single ResObject
+ * Setting whether the solver should perform in 'upgrade' mode or
+ * not.
+ * \see \ref doUpgrade.
+ */
+ void setUpgradeMode( bool yesno_r );
+ bool upgradeMode() const;
+
+ /**
+ * Setting whether the solver should allow or disallow vendor changes.
*
- * Installs (install == true) or removes (install == false) all required
- * and recommended packages(!) of \c robj
- * (More or less a 'single step' resolver call)
+ * If OFF (the default) the solver will replace packages with packages
+ * of the same (or equivalent) vendor ony.
*
- * returns false if requirements are not all fulfillable
+ * \see \ref VendorAttr for definition of vendor equivalence.
+ **/
+ void setAllowVendorChange( bool yesno_r );
+ void setDefaultAllowVendorChange(); // set back to default (in zypp.conf)
+ bool allowVendorChange() const;
+
+ /**
+ * System verification mode also monitors and repairs dependencies
+ * of already installed packages.
+ * \see \ref verifySystem
+ */
+ void setSystemVerification( bool yesno_r );
+ void setDefaultSystemVerification();
+ bool systemVerification() const;
+
+ /**
+ * Set whether to solve source packages build dependencies per default.
+ * Usually turned off and if, enabled per source package.
+ * \NOTE This affects only source packges selected in the \ref ResPool. No solver rule
+ * will be generated for them. Source packages requested via e.g. \ref addRequire will
+ * always be solved.
+ * \NOTE Be carefull. The older the source package is, the stranger may be the
+ * result of solving it's build dependencies.
+ */
+ void setSolveSrcPackages( bool yesno_r );
+ void setDefaultSolveSrcPackages();
+ bool solveSrcPackages() const;
+
+ /**
+ * Cleanup when deleting packages. Whether the solver should per default
+ * try to remove packages exclusively required by the ones he's asked to delete.
+ */
+ void setCleandepsOnRemove( bool yesno_r );
+ void setDefaultCleandepsOnRemove(); // set back to default (in zypp.conf)
+ bool cleandepsOnRemove() const;
+
+ /** \name Solver flags for DUP mode.
+ * DUP mode default settings differ from 'ordinary' ones. Default for
+ * all DUP flags is \c true.
+ */
+ //@{
+ /** dup mode: allow to downgrade installed solvable */
+ void dupSetAllowDowngrade( bool yesno_r );
+ void dupSetDefaultAllowDowngrade(); // Set back to default (in zypp.conf)
+ bool dupAllowDowngrade() const;
+
+ /** dup mode: allow to change name of installed solvable */
+ void dupSetAllowNameChange( bool yesno_r );
+ void dupSetDefaultAllowNameChange(); // Set back to default (in zypp.conf)
+ bool dupAllowNameChange() const;
+
+ /** dup mode: allow to change architecture of installed solvables */
+ void dupSetAllowArchChange( bool yesno_r );
+ void dupSetDefaultAllowArchChange(); // Set back to default (in zypp.conf)
+ bool dupAllowArchChange() const;
+
+ /** dup mode: allow to change vendor of installed solvables*/
+ void dupSetAllowVendorChange( bool yesno_r );
+ void dupSetDefaultAllowVendorChange(); // Set back to default (in zypp.conf)
+ bool dupAllowVendorChange() const;
+ //@}
+
+ /** \name Upgrade to content of a specific repository.
+ * \note This is an ordinary solver request. You should simply
+ * \ref resolvePool to execute, and not \ref doUpgrade.
+ */
+ //@{
+ /**
+ * Adding request to perform a dist upgrade restricted to this repository.
*
+ * This is what e.g. <tt>zypper dup --repo myrepo</tt> should perform.
+ * \see \ref doUpgrade
*/
- bool transactResObject( ResObject::constPtr robj, bool install = true);
+ void addUpgradeRepo( Repository repo_r );
/**
- * transact all objects of this kind
+ * Whether there is at least one \c UpgradeRepo request pending
+ */
+ bool upgradingRepos() const;
+
+ /**
+ * Whether there is an \c UpgradeRepo request pending for this repo.
+ */
+ bool upgradingRepo( Repository repo_r ) const;
+
+ /**
+ * Remove an upgrade request for this repo.
+ */
+ void removeUpgradeRepo( Repository repo_r );
+
+ /**
+ * Remove all upgrade repo requests.
+ */
+ void removeUpgradeRepos();
+ //@}
+
+ /**
+ * Adding additional requirement
*
- * Look through the pool and runs transactResObject, first for removes
- * then for installs
- * (More or less a 'single step' resolver call)
+ */
+ void addRequire( const Capability & capability );
+
+ /**
+ * Adding additional conflict
*
- * returns false if any transactResObject() call returned false.
+ */
+ void addConflict( const Capability & capability );
+
+ /**
+ * Remove the additional requirement set by \ref addRequire(Capability).
*
*/
- bool transactResKind( Resolvable::Kind kind );
+ void removeRequire( const Capability & capability );
/**
- * reset any transact states
+ * Remove the additional conflict set by \ref addConflict(Capability).
*
- * Look through the pool and clear transact state.
- * It will only reset states which have an equal or
- * lower causer
+ */
+ void removeConflict( const Capability & capability );
+
+ /**
+ * Get all the additional requirements set by \ref addRequire(Capability).
*
*/
- void transactReset( ResStatus::TransactByValue causer );
+ CapabilitySet getRequire() const;
/**
- * Setting solver timeout
+ * Get all the additional conflicts set by \ref addConflict(Capability).
*
- * Stop solving after a given timeframe (seconds)
- * seconds = 0 : No timeout
+ */
+ CapabilitySet getConflict() const;
+
+ /**
+ * Generates a solver Testcase of the current state
*
+ * \parame dumpPath destination directory of the created directory
+ * \return true if it was successful
*/
- void setTimeout( int seconds );
+ bool createSolverTestcase( const std::string & dumpPath = "/var/log/YaST2/solverTestcase", bool runSolver = true );
/**
- * Getting solver timeout in seconds
+ * Gives information about WHO has pused an installation of an given item.
+ *
+ * \param item Evaluate additional information for this resolvable.
+ * \return A list of structures which contains:
+ * item Item which has triggered the installation of the given param item.
+ * initialInstallation This item has triggered the installation
+ * Not already fullfilled requierement only.
+ * cap Capability which has triggerd this installation
+ * capKind Kind of that capability (e.g. Dep::REQUIRES,Dep::RECOMMENDS,... )
+ *
+ * Note: In order to have a result start a solver run before. Not matter if it is valid or invalid.
*
*/
- int timeout();
+ solver::detail::ItemCapKindList isInstalledBy( const PoolItem & item );
/**
- * Restricting solver passes
+ * Gives information about WHICH additional items will be installed due the installation of an item.
*
- * Stop solving after a given amount of passes
- * count = 0 : No restriction
+ * \param item Evaluate additional information for this resolvable.
+ * \return A list of structures which contains:
+ * item Item which has triggered the installation of the given param item.
+ * initialInstallation This item has triggered the installation
+ * Not already fullfilled requierement only.
+ * cap Capability which has triggerd this installation
+ * capKind Kind of that capability (e.g. Dep::REQUIRES,Dep::RECOMMENDS,... )
+ *
+ * Note: In order to have a result start a solver run before. Not matter if it is valid or invalid.
*
*/
- void setMaxSolverPasses (int count);
+ solver::detail::ItemCapKindList installs( const PoolItem & item );
/**
- * Count of max solver passes
+ * Gives information about WHICH installed items are requested by the installation of an item.
+ *
+ * \param item Evaluate additional information for this resolvable.
+ * \return A list of structures which contains:
+ * item Item which has triggered the installation of the given param item.
+ * initialInstallation This item has triggered the installation
+ * Not already fullfilled requierement only.
+ * cap Capability which has triggerd this installation
+ * capKind Kind of that capability (e.g. Dep::REQUIRES,Dep::RECOMMENDS,... )
+ *
+ * Note: In order to have a result start a solver run before. Not matter if it is valid or invalid.
*
*/
- int maxSolverPasses ();
+ solver::detail::ItemCapKindList satifiedByInstalled( const PoolItem & item );
+
/**
- * Generates a solver Testcase of the current state
+ * Gives information about WHICH items require an already installed item.
+ *
+ * \param item Evaluate additional information for this resolvable.
+ * \return A list of structures which contains:
+ * item Item which has triggered the installation of the given param item.
+ * initialInstallation This item has triggered the installation
+ * Not already fullfilled requierement only.
+ * cap Capability which has triggerd this installation
+ * capKind Kind of that capability (e.g. Dep::REQUIRES,Dep::RECOMMENDS,... )
+ *
+ * Note: In order to have a result start a solver run before. Not matter if it is valid or invalid.
*
- * return true if it was successful
*/
- bool createSolverTestcase (const std::string & dumpPath = "/var/log/YaST2/solverTestcase");
+ solver::detail::ItemCapKindList installedSatisfied( const PoolItem & item );
- protected:
private:
- solver::detail::Resolver_Ptr _pimpl;
+ friend std::ostream & operator<<( std::ostream & str, const Resolver & obj );
+ zypp::RW_pointer<solver::detail::ResolverInternal> _pimpl;
};
///////////////////////////////////////////////////////////////////
+ /** \relates Resolver Stream output */
+ std::ostream & operator<<( std::ostream & str, const Resolver & obj );
+
/////////////////////////////////////////////////////////////////
} // namespace zypp
///////////////////////////////////////////////////////////////////
projects / platform / upstream / libzypp.git / blobdiff