[ntk/apt.git] / apt-pkg / packagemanager.cc

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: packagemanager.cc,v 1.7 1998/11/22 23:37:05 jgg Exp $
/* ######################################################################

   Package Manager - Abstacts the package manager

   More work is needed in the area of transitioning provides, ie exim
   replacing smail. This can cause interesing side effects.

   Other cases involving conflicts+replaces should be tested. 
   
   ##################################################################### */
									/*}}}*/
// Include Files							/*{{{*/
#ifdef __GNUG__
#pragma implementation "apt-pkg/packagemanager.h"
#endif
#include <apt-pkg/packagemanager.h>
#include <apt-pkg/orderlist.h>
#include <apt-pkg/depcache.h>
#include <apt-pkg/error.h>
#include <apt-pkg/version.h>
#include <apt-pkg/acquire-item.h>
#include <apt-pkg/algorithms.h>
#include <apt-pkg/configuration.h>
									/*}}}*/

// PM::PackageManager - Constructor					/*{{{*/
// ---------------------------------------------------------------------
/* */
pkgPackageManager::pkgPackageManager(pkgDepCache &Cache) : Cache(Cache)
{
   FileNames = new string[Cache.Head().PackageCount];
   List = 0;
   Debug = _config->FindB("Debug::pkgPackageManager",false);
}
									/*}}}*/
// PM::PackageManager - Destructor					/*{{{*/
// ---------------------------------------------------------------------
/* */
pkgPackageManager::~pkgPackageManager()
{
   delete List;
   delete [] FileNames;
}
									/*}}}*/
// PM::GetArchives - Queue the archives for download			/*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
				    pkgRecords *Recs)
{
   if (CreateOrderList() == false)
      return false;
   
   if (List->OrderUnpack() == false)
      return _error->Error("Internal ordering error");

   for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
   {
      PkgIterator Pkg(Cache,*I);

      // Skip packages to erase
      if (Cache[Pkg].Delete() == true)
	 continue;
      
      new pkgAcqArchive(Owner,Sources,Recs,Cache[Pkg].InstVerIter(Cache),
			FileNames[Pkg->ID]);
   }

   return true;
}
									/*}}}*/
// PM::FixMissing - Keep all missing packages				/*{{{*/
// ---------------------------------------------------------------------
/* This is called to correct the installation when packages could not
   be downloaded. */
bool pkgPackageManager::FixMissing()
{
   pkgProblemResolver Resolve(Cache);
   
   for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
   {
     if (Cache[I].Keep() == true)
	 continue;
      if (FileNames[I->ID].empty() == false || Cache[I].Delete() == true)
	 continue;
      Cache.MarkKeep(I);
   }
   
   // Now downgrade everything that is broken
   return Resolve.ResolveByKeep() == true && Cache.BrokenCount() == 0;   
}
									/*}}}*/

// PM::CreateOrderList - Create the ordering class			/*{{{*/
// ---------------------------------------------------------------------
/* This populates the ordering list with all the packages that are
   going to change. */
bool pkgPackageManager::CreateOrderList()
{
   delete List;
   List = new pkgOrderList(Cache);
   
   // Generate the list of affected packages and sort it
   for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
   {
      // Consider all depends
      if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
      {
	 List->Flag(I,pkgOrderList::Immediate);
	 if (Cache[I].InstallVer != 0)
	    for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList(); 
		 D.end() == false; D++)
	       if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
		  List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
	 if (I->CurrentVer != 0)
	    for (DepIterator D = I.CurrentVer().DependsList(); 
		 D.end() == false; D++)
	       if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
		  List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
      }
      
      // Not interesting
      if ((Cache[I].Keep() == true || 
	  Cache[I].InstVerIter(Cache) == I.CurrentVer()) && 
	  I.State() == pkgCache::PkgIterator::NeedsNothing)
	 continue;
      
      // Append it to the list
      List->push_back(I);
      
      if ((I->Flags & pkgCache::Flag::ImmediateConf) == pkgCache::Flag::ImmediateConf)
	 List->Flag(I,pkgOrderList::Immediate);
   }
   
   return true;
}
									/*}}}*/
// PM::DepAlwaysTrue - Returns true if this dep is irrelevent		/*{{{*/
// ---------------------------------------------------------------------
/* The restriction on provides is to eliminate the case when provides
   are transitioning between valid states [ie exim to smail] */
bool pkgPackageManager::DepAlwaysTrue(DepIterator D)
{
   if (D.TargetPkg()->ProvidesList != 0)
      return false;
   
   if ((Cache[D] & pkgDepCache::DepInstall) != 0 &&
       (Cache[D] & pkgDepCache::DepNow) != 0)
      return true;
   return false;
}
									/*}}}*/
// PM::CheckRConflicts - Look for reverse conflicts			/*{{{*/
// ---------------------------------------------------------------------
/* This looks over the reverses for a conflicts line that needs early
   removal. */
bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D,
					const char *Ver)
{
   for (;D.end() == false; D++)
   {
      if (D->Type != pkgCache::Dep::Conflicts)
	 continue;
      
      if (D.ParentPkg() == Pkg)
	 continue;
      
      if (pkgCheckDep(D.TargetVer(),Ver,D->CompareOp) == false)
	 continue;

      if (List->IsNow(Pkg) == false)
	 continue;
      
      if (EarlyRemove(D.ParentPkg()) == false)
	 return false;
   }  
   return true;
}
									/*}}}*/
// PM::ConfigureAll - Run the all out configuration			/*{{{*/
// ---------------------------------------------------------------------
/* This configures every package. It is assumed they are all unpacked and
   that the final configuration is valid. */
bool pkgPackageManager::ConfigureAll()
{
   pkgOrderList OList(Cache);
   
   // Populate the order list
   for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
      if (List->IsFlag(pkgCache::PkgIterator(Cache,*I),
		       pkgOrderList::UnPacked) == true)
	 OList.push_back(*I);
   
   if (OList.OrderConfigure() == false)
      return false;
   
   // Perform the configuring
   for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
   {
      PkgIterator Pkg(Cache,*I);
      
      if (Configure(Pkg) == false)
	 return false;
      
      List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
   }
   
   return true;
}
									/*}}}*/
// PM::SmartConfigure - Perform immediate configuration of the pkg	/*{{{*/
// ---------------------------------------------------------------------
/* This routine scheduals the configuration of the given package and all
   of it's dependents. */
bool pkgPackageManager::SmartConfigure(PkgIterator Pkg)
{
   pkgOrderList OList(Cache);

   if (DepAdd(OList,Pkg) == false)
      return false;
   
   if (OList.OrderConfigure() == false)
      return false;

   // Perform the configuring
   for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
   {
      PkgIterator Pkg(Cache,*I);
      
      if (Configure(Pkg) == false)
	 return false;
      
      List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
   }

   // Sanity Check
   if (List->IsFlag(Pkg,pkgOrderList::Configured) == false)
      return _error->Error("Internal error, could not immediate configure %s",Pkg.Name());
   
   return true;
}
									/*}}}*/
// PM::DepAdd - Add all dependents to the oder list			/*{{{*/
// ---------------------------------------------------------------------
/* This recursively adds all dependents to the order list */
bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth)
{
   if (OList.IsFlag(Pkg,pkgOrderList::Added) == true)
      return true;
   if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
      return true;
   if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false)
      return false;
   
   
   // Put the package on the list
   OList.push_back(Pkg);
   OList.Flag(Pkg,pkgOrderList::Added);
   Depth++;

   // Check the dependencies to see if they are all satisfied.
   bool Bad = false;
   for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); D.end() == false;)
   {
      if (D->Type != pkgCache::Dep::Depends && D->Type != pkgCache::Dep::PreDepends)
      {
	 D++;
	 continue;
      }
      
      // Grok or groups
      Bad = true;
      for (bool LastOR = true; D.end() == false && LastOR == true; D++)
      {
	 LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or;
	 
	 if (Bad == false)
	    continue;

	 Version **VList = D.AllTargets();
	 for (Version **I = VList; *I != 0 && Bad == true; I++)
	 {
	    VerIterator Ver(Cache,*I);
	    PkgIterator Pkg = Ver.ParentPkg();

	    // See if the current version is ok
	    if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true && 
		Pkg.State() == PkgIterator::NeedsNothing)
	    {
	       Bad = false;
	       continue;
	    }
	    
	    // Not the install version 
	    if (Cache[Pkg].InstallVer != *I || 
		(Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
	       continue;
	    if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == true)
	       Bad = !DepAdd(OList,Pkg,Depth);
	    if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
	       Bad = false;
	 }
	 delete [] VList;
      }
      
      if (Bad == true)
      {
	 OList.Flag(Pkg,0,pkgOrderList::Added);
	 OList.pop_back();
	 Depth--;
	 return false;
      }
   }
   
   Depth--;
   return true;
}
									/*}}}*/
// PM::EarlyRemove - Perform removal of packages before their time	/*{{{*/
// ---------------------------------------------------------------------
/* This is called to deal with conflicts arising from unpacking */
bool pkgPackageManager::EarlyRemove(PkgIterator Pkg)
{
   if (List->IsNow(Pkg) == false)
      return true;
	 
   // Already removed it
   if (List->IsFlag(Pkg,pkgOrderList::Removed) == true)
      return true;
   
   // Woops, it will not be re-installed!
   if (List->IsFlag(Pkg,pkgOrderList::InList) == false)
      return false;
   
   bool Res = SmartRemove(Pkg);
   if (Cache[Pkg].Delete() == false)
      List->Flag(Pkg,pkgOrderList::Removed,pkgOrderList::States);
   
   return Res;
}
									/*}}}*/
// PM::SmartRemove - Removal Helper					/*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgPackageManager::SmartRemove(PkgIterator Pkg)
{
   if (List->IsNow(Pkg) == false)
      return true;

   List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
   return Remove(Pkg);
}
									/*}}}*/
// PM::SmartUnPack - Install helper					/*{{{*/
// ---------------------------------------------------------------------
/* This performs the task of handling pre-depends. */
bool pkgPackageManager::SmartUnPack(PkgIterator Pkg)
{
   // Check if it is already unpacked
   if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
       Cache[Pkg].Keep() == true)
   {
      List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
      if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
	 if (SmartConfigure(Pkg) == false)
	    return _error->Error("Internal Error, Could not perform immediate configuraton");
      return true;
   }
   
   /* See if this packages install version has any predependencies
      that are not met by 'now' packages. */
   for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); 
	D.end() == false; D++)
   {
      if (D->Type == pkgCache::Dep::PreDepends)
      {
	 // Look for possible ok targets.
	 Version **VList = D.AllTargets();
	 bool Bad = true;
	 for (Version **I = VList; *I != 0 && Bad == true; I++)
	 {
	    VerIterator Ver(Cache,*I);
	    PkgIterator Pkg = Ver.ParentPkg();
	    
	    // See if the current version is ok
	    if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true && 
		Pkg.State() == PkgIterator::NeedsNothing)
	    {
	       Bad = false;
	       continue;
	    }
	 }
	 
	 // Look for something that could be configured.
	 for (Version **I = VList; *I != 0 && Bad == true; I++)
	 {
	    VerIterator Ver(Cache,*I);
	    PkgIterator Pkg = Ver.ParentPkg();
	    
	    // Not the install version 
	    if (Cache[Pkg].InstallVer != *I || 
		(Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
	       continue;

	    Bad = !SmartConfigure(Pkg);
	 }
	 
	 delete [] VList;
	 
	 if (Bad == true)
	    return _error->Error("Internal Error, Couldn't configure a pre-depend");

	 continue;
      }
      
      if (D->Type == pkgCache::Dep::Conflicts)
      {
	 /* Look for conflicts. Two packages that are both in the install
	    state cannot conflict so we don't check.. */
	 Version **VList = D.AllTargets();
	 for (Version **I = VList; *I != 0; I++)
	 {
	    VerIterator Ver(Cache,*I);
	    PkgIterator Pkg = Ver.ParentPkg();
	    
	    // See if the current version is conflicting
	    if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true)
	    {
	       if (EarlyRemove(Pkg) == false)
		  return _error->Error("Internal Error, Could not early remove %s",Pkg.Name());
	    }
	 }
	 delete [] VList;
      }
   }

   // Check for reverse conflicts.
   CheckRConflicts(Pkg,Pkg.RevDependsList(),
		   Cache[Pkg].InstVerIter(Cache).VerStr());
   for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList(); 
	P.end() == false; P++)
      CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
   
   if (Install(Pkg,FileNames[Pkg->ID]) == false)
      return false;
   
   List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
   
   // Perform immedate configuration of the package.
   if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
      if (SmartConfigure(Pkg) == false)
	 return _error->Error("Internal Error, Could not perform immediate configuraton");
   
   return true;
}
									/*}}}*/
// PM::OrderInstall - Installation ordering routine			/*{{{*/
// ---------------------------------------------------------------------
/* */
bool pkgPackageManager::OrderInstall()
{
   if (CreateOrderList() == false)
      return false;
   
   if (Debug == true)
      clog << "Begining to order" << endl;
   
   if (List->OrderUnpack() == false)
      return _error->Error("Internal ordering error");

   if (Debug == true)
      clog << "Done ordering" << endl;

   for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
   {
      PkgIterator Pkg(Cache,*I);
      
      // Sanity check
      if (Cache[Pkg].Keep() == true && Pkg.State() == pkgCache::PkgIterator::NeedsNothing)
	 return _error->Error("Internal Error, trying to manipulate a kept package");
      
      // Perform a delete or an install
      if (Cache[Pkg].Delete() == true)
      {
	 if (SmartRemove(Pkg) == false)
	    return false;	 
      }
      else
	 if (SmartUnPack(Pkg) == false)
	    return false;
   }
   
   // Final run through the configure phase
   if (ConfigureAll() == false)
      return false;

   // Sanity check
   for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
      if (List->IsFlag(*I,pkgOrderList::Configured) == false)
	 return _error->Error("Internal error, packages left unconfigured. %s",
			      PkgIterator(Cache,*I).Name());

   return true;
}
									/*}}}*/
// PM::DoInstall - Does the installation				/*{{{*/
// ---------------------------------------------------------------------
/* This uses the filenames in FileNames and the information in the
   DepCache to perform the installation of packages.*/
bool pkgPackageManager::DoInstall()
{
   return OrderInstall() && Go();
}
									/*}}}*/
Commit	Line	Data
6c139d6e AL	1	// -- mode: cpp; mode: fold --
6c139d6e AL	2	// Description /{{{/
7a1b1f8b	3	// $Id: packagemanager.cc,v 1.7 1998/11/22 23:37:05 jgg Exp $
6c139d6e AL	4	/* ######################################################################
	5
	6	Package Manager - Abstacts the package manager
	7
	8	More work is needed in the area of transitioning provides, ie exim
	9	replacing smail. This can cause interesing side effects.
	10
	11	Other cases involving conflicts+replaces should be tested.
	12
	13	##################################################################### */
	14	/}}}/
	15	// Include Files /{{{/
	16	#ifdef __GNUG__
094a497d	17	#pragma implementation "apt-pkg/packagemanager.h"
6c139d6e	18	#endif
094a497d AL	19	#include <apt-pkg/packagemanager.h>
	20	#include <apt-pkg/orderlist.h>
	21	#include <apt-pkg/depcache.h>
	22	#include <apt-pkg/error.h>
	23	#include <apt-pkg/version.h>
03e39e59	24	#include <apt-pkg/acquire-item.h>
30e1eab5 AL	25	#include <apt-pkg/algorithms.h>
30e1eab5 AL	26	#include <apt-pkg/configuration.h>
6c139d6e AL	27	/}}}/
	28
	29	// PM::PackageManager - Constructor /{{{/
	30	// ---------------------------------------------------------------------
	31	/* */
	32	pkgPackageManager::pkgPackageManager(pkgDepCache &Cache) : Cache(Cache)
	33	{
	34	FileNames = new string[Cache.Head().PackageCount];
	35	List = 0;
30e1eab5	36	Debug = _config->FindB("Debug::pkgPackageManager",false);
6c139d6e AL	37	}
	38	/}}}/
	39	// PM::PackageManager - Destructor /{{{/
	40	// ---------------------------------------------------------------------
	41	/* */
	42	pkgPackageManager::~pkgPackageManager()
	43	{
	44	delete List;
	45	delete [] FileNames;
	46	}
	47	/}}}/
03e39e59 AL	48	// PM::GetArchives - Queue the archives for download /{{{/
	49	// ---------------------------------------------------------------------
	50	/* */
	51	bool pkgPackageManager::GetArchives(pkgAcquire Owner,pkgSourceList Sources,
	52	pkgRecords *Recs)
	53	{
7a1b1f8b AL	54	if (CreateOrderList() == false)
	55	return false;
	56
	57	if (List->OrderUnpack() == false)
	58	return _error->Error("Internal ordering error");
	59
	60	for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
	61	{
	62	PkgIterator Pkg(Cache,*I);
	63
	64	// Skip packages to erase
	65	if (Cache[Pkg].Delete() == true)
03e39e59 AL	66	continue;
03e39e59 AL	67
7a1b1f8b AL	68	new pkgAcqArchive(Owner,Sources,Recs,Cache[Pkg].InstVerIter(Cache),
7a1b1f8b AL	69	FileNames[Pkg->ID]);
03e39e59	70	}
7a1b1f8b	71
03e39e59 AL	72	return true;
	73	}
	74	/}}}/
6c139d6e AL	75	// PM::FixMissing - Keep all missing packages /{{{/
	76	// ---------------------------------------------------------------------
	77	/* This is called to correct the installation when packages could not
	78	be downloaded. */
	79	bool pkgPackageManager::FixMissing()
	80	{
30e1eab5 AL	81	pkgProblemResolver Resolve(Cache);
30e1eab5 AL	82
6c139d6e AL	83	for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
6c139d6e AL	84	{
30e1eab5	85	if (Cache[I].Keep() == true)
6c139d6e AL	86	continue;
	87	if (FileNames[I->ID].empty() == false \|\| Cache[I].Delete() == true)
	88	continue;
	89	Cache.MarkKeep(I);
	90	}
	91
	92	// Now downgrade everything that is broken
30e1eab5	93	return Resolve.ResolveByKeep() == true && Cache.BrokenCount() == 0;
6c139d6e AL	94	}
	95	/}}}/
	96
7a1b1f8b AL	97	// PM::CreateOrderList - Create the ordering class /{{{/
	98	// ---------------------------------------------------------------------
	99	/* This populates the ordering list with all the packages that are
	100	going to change. */
	101	bool pkgPackageManager::CreateOrderList()
	102	{
	103	delete List;
	104	List = new pkgOrderList(Cache);
	105
	106	// Generate the list of affected packages and sort it
	107	for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
	108	{
	109	// Consider all depends
	110	if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
	111	{
	112	List->Flag(I,pkgOrderList::Immediate);
	113	if (Cache[I].InstallVer != 0)
	114	for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList();
	115	D.end() == false; D++)
	116	if (D->Type == pkgCache::Dep::Depends \|\| D->Type == pkgCache::Dep::PreDepends)
	117	List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
	118	if (I->CurrentVer != 0)
	119	for (DepIterator D = I.CurrentVer().DependsList();
	120	D.end() == false; D++)
	121	if (D->Type == pkgCache::Dep::Depends \|\| D->Type == pkgCache::Dep::PreDepends)
	122	List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
	123	}
	124
	125	// Not interesting
	126	if ((Cache[I].Keep() == true \|\|
	127	Cache[I].InstVerIter(Cache) == I.CurrentVer()) &&
	128	I.State() == pkgCache::PkgIterator::NeedsNothing)
	129	continue;
	130
	131	// Append it to the list
	132	List->push_back(I);
	133
	134	if ((I->Flags & pkgCache::Flag::ImmediateConf) == pkgCache::Flag::ImmediateConf)
	135	List->Flag(I,pkgOrderList::Immediate);
	136	}
	137
	138	return true;
	139	}
	140	/}}}/
6c139d6e AL	141	// PM::DepAlwaysTrue - Returns true if this dep is irrelevent /{{{/
	142	// ---------------------------------------------------------------------
	143	/* The restriction on provides is to eliminate the case when provides
	144	are transitioning between valid states [ie exim to smail] */
	145	bool pkgPackageManager::DepAlwaysTrue(DepIterator D)
	146	{
	147	if (D.TargetPkg()->ProvidesList != 0)
	148	return false;
	149
	150	if ((Cache[D] & pkgDepCache::DepInstall) != 0 &&
	151	(Cache[D] & pkgDepCache::DepNow) != 0)
	152	return true;
	153	return false;
	154	}
	155	/}}}/
	156	// PM::CheckRConflicts - Look for reverse conflicts /{{{/
	157	// ---------------------------------------------------------------------
	158	/* This looks over the reverses for a conflicts line that needs early
	159	removal. */
	160	bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D,
	161	const char *Ver)
	162	{
	163	for (;D.end() == false; D++)
	164	{
b50b2c97	165	if (D->Type != pkgCache::Dep::Conflicts)
6c139d6e AL	166	continue;
	167
	168	if (D.ParentPkg() == Pkg)
	169	continue;
	170
	171	if (pkgCheckDep(D.TargetVer(),Ver,D->CompareOp) == false)
	172	continue;
	173
	174	if (List->IsNow(Pkg) == false)
	175	continue;
	176
	177	if (EarlyRemove(D.ParentPkg()) == false)
	178	return false;
	179	}
	180	return true;
	181	}
	182	/}}}/
	183	// PM::ConfigureAll - Run the all out configuration /{{{/
	184	// ---------------------------------------------------------------------
	185	/* This configures every package. It is assumed they are all unpacked and
	186	that the final configuration is valid. */
	187	bool pkgPackageManager::ConfigureAll()
	188	{
	189	pkgOrderList OList(Cache);
	190
	191	// Populate the order list
	192	for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
	193	if (List->IsFlag(pkgCache::PkgIterator(Cache,*I),
	194	pkgOrderList::UnPacked) == true)
	195	OList.push_back(*I);
	196
	197	if (OList.OrderConfigure() == false)
	198	return false;
	199
	200	// Perform the configuring
	201	for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
	202	{
	203	PkgIterator Pkg(Cache,*I);
	204
	205	if (Configure(Pkg) == false)
	206	return false;
	207
	208	List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
	209	}
	210
	211	return true;
	212	}
	213	/}}}/
	214	// PM::SmartConfigure - Perform immediate configuration of the pkg /{{{/
	215	// ---------------------------------------------------------------------
	216	/* This routine scheduals the configuration of the given package and all
	217	of it's dependents. */
	218	bool pkgPackageManager::SmartConfigure(PkgIterator Pkg)
	219	{
	220	pkgOrderList OList(Cache);
	221
	222	if (DepAdd(OList,Pkg) == false)
	223	return false;
	224
	225	if (OList.OrderConfigure() == false)
	226	return false;
	227
	228	// Perform the configuring
	229	for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
230	{
231	PkgIterator Pkg(Cache,*I);
232
233	if (Configure(Pkg) == false)
234	return false;
235
236	List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
237	}
238
239	// Sanity Check
240	if (List->IsFlag(Pkg,pkgOrderList::Configured) == false)
241	return _error->Error("Internal error, could not immediate configure %s",Pkg.Name());
242
243	return true;
244	}
245	/}}}/
246	// PM::DepAdd - Add all dependents to the oder list /{{{/
247	// ---------------------------------------------------------------------
248	/* This recursively adds all dependents to the order list */
249	bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth)
250	{
251	if (OList.IsFlag(Pkg,pkgOrderList::Added) == true)
252	return true;
253	if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
254	return true;
255	if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false)
256	return false;
257
258
259	// Put the package on the list
260	OList.push_back(Pkg);
261	OList.Flag(Pkg,pkgOrderList::Added);
262	Depth++;
263
264	// Check the dependencies to see if they are all satisfied.
265	bool Bad = false;
266	for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); D.end() == false;)
267	{
b50b2c97	268	if (D->Type != pkgCache::Dep::Depends && D->Type != pkgCache::Dep::PreDepends)
6c139d6e AL	269	{
	270	D++;
	271	continue;
	272	}
	273
	274	// Grok or groups
	275	Bad = true;
	276	for (bool LastOR = true; D.end() == false && LastOR == true; D++)
	277	{
b50b2c97	278	LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or;
6c139d6e AL	279
	280	if (Bad == false)
	281	continue;
	282
	283	Version **VList = D.AllTargets();
	284	for (Version *I = VList; I != 0 && Bad == true; I++)
	285	{
	286	VerIterator Ver(Cache,*I);
	287	PkgIterator Pkg = Ver.ParentPkg();
	288
	289	// See if the current version is ok
	290	if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
	291	Pkg.State() == PkgIterator::NeedsNothing)
	292	{
	293	Bad = false;
	294	continue;
	295	}
	296
	297	// Not the install version
	298	if (Cache[Pkg].InstallVer != *I \|\|
	299	(Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
	300	continue;
	301	if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == true)
	302	Bad = !DepAdd(OList,Pkg,Depth);
	303	if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
	304	Bad = false;
	305	}
	306	delete [] VList;
	307	}
	308
	309	if (Bad == true)
	310	{
	311	OList.Flag(Pkg,0,pkgOrderList::Added);
	312	OList.pop_back();
	313	Depth--;
	314	return false;
	315	}
	316	}
	317
	318	Depth--;
	319	return true;
	320	}
	321	/}}}/
	322	// PM::EarlyRemove - Perform removal of packages before their time /{{{/
	323	// ---------------------------------------------------------------------
	324	/* This is called to deal with conflicts arising from unpacking */
	325	bool pkgPackageManager::EarlyRemove(PkgIterator Pkg)
	326	{
	327	if (List->IsNow(Pkg) == false)
	328	return true;
	329
	330	// Already removed it
	331	if (List->IsFlag(Pkg,pkgOrderList::Removed) == true)
	332	return true;
	333
	334	// Woops, it will not be re-installed!
	335	if (List->IsFlag(Pkg,pkgOrderList::InList) == false)
	336	return false;
	337
	338	bool Res = SmartRemove(Pkg);
	339	if (Cache[Pkg].Delete() == false)
	340	List->Flag(Pkg,pkgOrderList::Removed,pkgOrderList::States);
	341
	342	return Res;
343	}
344	/}}}/
345	// PM::SmartRemove - Removal Helper /{{{/
346	// ---------------------------------------------------------------------
347	/* */
348	bool pkgPackageManager::SmartRemove(PkgIterator Pkg)
349	{
350	if (List->IsNow(Pkg) == false)
351	return true;
352
353	List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
354	return Remove(Pkg);
355	}
356	/}}}/
357	// PM::SmartUnPack - Install helper /{{{/
358	// ---------------------------------------------------------------------
359	/* This performs the task of handling pre-depends. */
360	bool pkgPackageManager::SmartUnPack(PkgIterator Pkg)
361	{
362	// Check if it is already unpacked
363	if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
364	Cache[Pkg].Keep() == true)
365	{
366	List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
367	if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
368	if (SmartConfigure(Pkg) == false)
369	return _error->Error("Internal Error, Could not perform immediate configuraton");
370	return true;
371	}
372
373	/* See if this packages install version has any predependencies
374	that are not met by 'now' packages. */
375	for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList();
376	D.end() == false; D++)
377	{
b50b2c97	378	if (D->Type == pkgCache::Dep::PreDepends)
6c139d6e AL	379	{
	380	// Look for possible ok targets.
	381	Version **VList = D.AllTargets();
	382	bool Bad = true;
	383	for (Version *I = VList; I != 0 && Bad == true; I++)
	384	{
	385	VerIterator Ver(Cache,*I);
	386	PkgIterator Pkg = Ver.ParentPkg();
	387
	388	// See if the current version is ok
	389	if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
	390	Pkg.State() == PkgIterator::NeedsNothing)
	391	{
	392	Bad = false;
	393	continue;
	394	}
	395	}
	396
	397	// Look for something that could be configured.
	398	for (Version *I = VList; I != 0 && Bad == true; I++)
	399	{
	400	VerIterator Ver(Cache,*I);
	401	PkgIterator Pkg = Ver.ParentPkg();
	402
	403	// Not the install version
	404	if (Cache[Pkg].InstallVer != *I \|\|
	405	(Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
	406	continue;
	407
	408	Bad = !SmartConfigure(Pkg);
	409	}
	410
	411	delete [] VList;
	412
	413	if (Bad == true)
	414	return _error->Error("Internal Error, Couldn't configure a pre-depend");
	415
	416	continue;
	417	}
	418
b50b2c97	419	if (D->Type == pkgCache::Dep::Conflicts)
6c139d6e AL	420	{
	421	/* Look for conflicts. Two packages that are both in the install
	422	state cannot conflict so we don't check.. */
	423	Version **VList = D.AllTargets();
	424	for (Version *I = VList; I != 0; I++)
	425	{
	426	VerIterator Ver(Cache,*I);
	427	PkgIterator Pkg = Ver.ParentPkg();
	428
	429	// See if the current version is conflicting
	430	if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true)
	431	{
	432	if (EarlyRemove(Pkg) == false)
	433	return _error->Error("Internal Error, Could not early remove %s",Pkg.Name());
	434	}
	435	}
	436	delete [] VList;
	437	}
	438	}
	439
	440	// Check for reverse conflicts.
	441	CheckRConflicts(Pkg,Pkg.RevDependsList(),
	442	Cache[Pkg].InstVerIter(Cache).VerStr());
	443	for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList();
	444	P.end() == false; P++)
	445	CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
	446
	447	if (Install(Pkg,FileNames[Pkg->ID]) == false)
	448	return false;
	449
	450	List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
	451
	452	// Perform immedate configuration of the package.
	453	if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
	454	if (SmartConfigure(Pkg) == false)
	455	return _error->Error("Internal Error, Could not perform immediate configuraton");
	456
	457	return true;
	458	}
	459	/}}}/
	460	// PM::OrderInstall - Installation ordering routine /{{{/
	461	// ---------------------------------------------------------------------
	462	/* */
	463	bool pkgPackageManager::OrderInstall()
	464	{
7a1b1f8b AL	465	if (CreateOrderList() == false)
7a1b1f8b AL	466	return false;
6c139d6e	467
30e1eab5 AL	468	if (Debug == true)
30e1eab5 AL	469	clog << "Begining to order" << endl;
6c139d6e AL	470
	471	if (List->OrderUnpack() == false)
	472	return _error->Error("Internal ordering error");
	473
30e1eab5 AL	474	if (Debug == true)
	475	clog << "Done ordering" << endl;
	476
6c139d6e AL	477	for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
	478	{
	479	PkgIterator Pkg(Cache,*I);
	480
	481	// Sanity check
	482	if (Cache[Pkg].Keep() == true && Pkg.State() == pkgCache::PkgIterator::NeedsNothing)
	483	return _error->Error("Internal Error, trying to manipulate a kept package");
	484
	485	// Perform a delete or an install
	486	if (Cache[Pkg].Delete() == true)
	487	{
	488	if (SmartRemove(Pkg) == false)
	489	return false;
	490	}
	491	else
	492	if (SmartUnPack(Pkg) == false)
	493	return false;
	494	}
	495
	496	// Final run through the configure phase
	497	if (ConfigureAll() == false)
	498	return false;
	499
	500	// Sanity check
	501	for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
	502	if (List->IsFlag(*I,pkgOrderList::Configured) == false)
	503	return _error->Error("Internal error, packages left unconfigured. %s",
	504	PkgIterator(Cache,*I).Name());
	505
	506	return true;
	507	}
	508	/}}}/
	509	// PM::DoInstall - Does the installation /{{{/
	510	// ---------------------------------------------------------------------
	511	/* This uses the filenames in FileNames and the information in the
	512	DepCache to perform the installation of packages.*/
	513	bool pkgPackageManager::DoInstall()
	514	{
	515	return OrderInstall() && Go();
	516	}
	517	/}}}/