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

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: packagemanager.cc,v 1.13 1999/02/19 07:56:07 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;

      // Skip Packages that need configure only.
      if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure && 
	  Cache[Pkg].Keep() == 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);

   bool Bad = false;
   for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
   {
      // These don't need files
      if (Cache[I].Keep() == true)
	 continue;
      if (Cache[I].Delete() == true)
	 continue;
      
      // We have a filename
      if (FileNames[I->ID].empty() == false)
	 continue;
      
      // Skip Packages that need configure only.
      if (I.State() == pkgCache::PkgIterator::NeedsConfigure && 
	  Cache[I].Keep() == true)
	 continue;
      
      // Okay, this file is missing and we need it. Mark it for keep 
      Bad = true;
      Cache.MarkKeep(I);
   }
   
   if (Bad == false)
      return true;
   
   // 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);
   
   bool NoImmConfigure = _config->FindB("APT::Immediate-Configure",false);
   
   // Generate the list of affected packages and sort it
   for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
   {
      // Mark the package for immediate configuration
      if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential &&
	  NoImmConfigure == false)
      {
	 List->Flag(I,pkgOrderList::Immediate);
	 
	 // Look for other packages to make immediate configurea
	 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);
	 
	 // And again with the current version.
	 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 /{{{/
9dbb421f	3	// $Id: packagemanager.cc,v 1.13 1999/02/19 07:56:07 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	66	continue;
d38b7b3d AL	67
d38b7b3d AL	68	// Skip Packages that need configure only.
9dbb421f AL	69	if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
9dbb421f AL	70	Cache[Pkg].Keep() == true)
d38b7b3d	71	continue;
03e39e59	72
7a1b1f8b AL	73	new pkgAcqArchive(Owner,Sources,Recs,Cache[Pkg].InstVerIter(Cache),
7a1b1f8b AL	74	FileNames[Pkg->ID]);
03e39e59	75	}
7a1b1f8b	76
03e39e59 AL	77	return true;
	78	}
	79	/}}}/
6c139d6e AL	80	// PM::FixMissing - Keep all missing packages /{{{/
	81	// ---------------------------------------------------------------------
	82	/* This is called to correct the installation when packages could not
	83	be downloaded. */
	84	bool pkgPackageManager::FixMissing()
	85	{
30e1eab5	86	pkgProblemResolver Resolve(Cache);
9dbb421f AL	87
9dbb421f AL	88	bool Bad = false;
6c139d6e AL	89	for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
6c139d6e AL	90	{
9dbb421f AL	91	// These don't need files
9dbb421f AL	92	if (Cache[I].Keep() == true)
6c139d6e	93	continue;
9dbb421f	94	if (Cache[I].Delete() == true)
6c139d6e	95	continue;
9dbb421f AL	96
	97	// We have a filename
	98	if (FileNames[I->ID].empty() == false)
	99	continue;
	100
	101	// Skip Packages that need configure only.
	102	if (I.State() == pkgCache::PkgIterator::NeedsConfigure &&
	103	Cache[I].Keep() == true)
	104	continue;
	105
	106	// Okay, this file is missing and we need it. Mark it for keep
	107	Bad = true;
6c139d6e AL	108	Cache.MarkKeep(I);
	109	}
	110
9dbb421f AL	111	if (Bad == false)
	112	return true;
	113
6c139d6e	114	// Now downgrade everything that is broken
30e1eab5	115	return Resolve.ResolveByKeep() == true && Cache.BrokenCount() == 0;
6c139d6e AL	116	}
	117	/}}}/
	118
7a1b1f8b AL	119	// PM::CreateOrderList - Create the ordering class /{{{/
	120	// ---------------------------------------------------------------------
	121	/* This populates the ordering list with all the packages that are
	122	going to change. */
	123	bool pkgPackageManager::CreateOrderList()
	124	{
	125	delete List;
	126	List = new pkgOrderList(Cache);
	127
b780bc1b	128	bool NoImmConfigure = _config->FindB("APT::Immediate-Configure",false);
079cc404	129
7a1b1f8b AL	130	// Generate the list of affected packages and sort it
	131	for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
	132	{
d38b7b3d	133	// Mark the package for immediate configuration
079cc404 AL	134	if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential &&
079cc404 AL	135	NoImmConfigure == false)
7a1b1f8b AL	136	{
7a1b1f8b AL	137	List->Flag(I,pkgOrderList::Immediate);
d38b7b3d AL	138
d38b7b3d AL	139	// Look for other packages to make immediate configurea
7a1b1f8b AL	140	if (Cache[I].InstallVer != 0)
	141	for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList();
	142	D.end() == false; D++)
	143	if (D->Type == pkgCache::Dep::Depends \|\| D->Type == pkgCache::Dep::PreDepends)
	144	List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
d38b7b3d AL	145
d38b7b3d AL	146	// And again with the current version.
7a1b1f8b AL	147	if (I->CurrentVer != 0)
	148	for (DepIterator D = I.CurrentVer().DependsList();
	149	D.end() == false; D++)
	150	if (D->Type == pkgCache::Dep::Depends \|\| D->Type == pkgCache::Dep::PreDepends)
	151	List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
	152	}
	153
	154	// Not interesting
	155	if ((Cache[I].Keep() == true \|\|
	156	Cache[I].InstVerIter(Cache) == I.CurrentVer()) &&
	157	I.State() == pkgCache::PkgIterator::NeedsNothing)
	158	continue;
	159
	160	// Append it to the list
	161	List->push_back(I);
	162
	163	if ((I->Flags & pkgCache::Flag::ImmediateConf) == pkgCache::Flag::ImmediateConf)
	164	List->Flag(I,pkgOrderList::Immediate);
	165	}
	166
	167	return true;
	168	}
	169	/}}}/
6c139d6e AL	170	// PM::DepAlwaysTrue - Returns true if this dep is irrelevent /{{{/
	171	// ---------------------------------------------------------------------
	172	/* The restriction on provides is to eliminate the case when provides
	173	are transitioning between valid states [ie exim to smail] */
	174	bool pkgPackageManager::DepAlwaysTrue(DepIterator D)
	175	{
	176	if (D.TargetPkg()->ProvidesList != 0)
	177	return false;
	178
	179	if ((Cache[D] & pkgDepCache::DepInstall) != 0 &&
	180	(Cache[D] & pkgDepCache::DepNow) != 0)
	181	return true;
	182	return false;
	183	}
	184	/}}}/
	185	// PM::CheckRConflicts - Look for reverse conflicts /{{{/
	186	// ---------------------------------------------------------------------
	187	/* This looks over the reverses for a conflicts line that needs early
	188	removal. */
	189	bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D,
	190	const char *Ver)
	191	{
	192	for (;D.end() == false; D++)
	193	{
b50b2c97	194	if (D->Type != pkgCache::Dep::Conflicts)
6c139d6e AL	195	continue;
	196
	197	if (D.ParentPkg() == Pkg)
	198	continue;
	199
	200	if (pkgCheckDep(D.TargetVer(),Ver,D->CompareOp) == false)
	201	continue;
	202
	203	if (List->IsNow(Pkg) == false)
	204	continue;
	205
	206	if (EarlyRemove(D.ParentPkg()) == false)
	207	return false;
	208	}
	209	return true;
	210	}
	211	/}}}/
	212	// PM::ConfigureAll - Run the all out configuration /{{{/
	213	// ---------------------------------------------------------------------
	214	/* This configures every package. It is assumed they are all unpacked and
	215	that the final configuration is valid. */
	216	bool pkgPackageManager::ConfigureAll()
	217	{
	218	pkgOrderList OList(Cache);
	219
	220	// Populate the order list
	221	for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
	222	if (List->IsFlag(pkgCache::PkgIterator(Cache,*I),
	223	pkgOrderList::UnPacked) == true)
	224	OList.push_back(*I);
	225
	226	if (OList.OrderConfigure() == false)
	227	return false;
	228
	229	// Perform the configuring
	230	for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
	231	{
	232	PkgIterator Pkg(Cache,*I);
	233
	234	if (Configure(Pkg) == false)
	235	return false;
	236
	237	List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
	238	}
	239
	240	return true;
	241	}
	242	/}}}/
	243	// PM::SmartConfigure - Perform immediate configuration of the pkg /{{{/
	244	// ---------------------------------------------------------------------
	245	/* This routine scheduals the configuration of the given package and all
	246	of it's dependents. */
	247	bool pkgPackageManager::SmartConfigure(PkgIterator Pkg)
	248	{
	249	pkgOrderList OList(Cache);
	250
	251	if (DepAdd(OList,Pkg) == false)
	252	return false;
	253
	254	if (OList.OrderConfigure() == false)
	255	return false;
	256
	257	// Perform the configuring
	258	for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
259	{
260	PkgIterator Pkg(Cache,*I);
261
262	if (Configure(Pkg) == false)
263	return false;
264
265	List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
266	}
267
268	// Sanity Check
269	if (List->IsFlag(Pkg,pkgOrderList::Configured) == false)
270	return _error->Error("Internal error, could not immediate configure %s",Pkg.Name());
271
272	return true;
273	}
274	/}}}/
275	// PM::DepAdd - Add all dependents to the oder list /{{{/
276	// ---------------------------------------------------------------------
277	/* This recursively adds all dependents to the order list */
278	bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth)
279	{
280	if (OList.IsFlag(Pkg,pkgOrderList::Added) == true)
281	return true;
282	if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
283	return true;
284	if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false)
285	return false;
286
287
288	// Put the package on the list
289	OList.push_back(Pkg);
290	OList.Flag(Pkg,pkgOrderList::Added);
291	Depth++;
292
293	// Check the dependencies to see if they are all satisfied.
294	bool Bad = false;
295	for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); D.end() == false;)
296	{
b50b2c97	297	if (D->Type != pkgCache::Dep::Depends && D->Type != pkgCache::Dep::PreDepends)
6c139d6e AL	298	{
	299	D++;
	300	continue;
	301	}
	302
	303	// Grok or groups
	304	Bad = true;
	305	for (bool LastOR = true; D.end() == false && LastOR == true; D++)
	306	{
b50b2c97	307	LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or;
6c139d6e AL	308
	309	if (Bad == false)
	310	continue;
	311
	312	Version **VList = D.AllTargets();
	313	for (Version *I = VList; I != 0 && Bad == true; I++)
	314	{
	315	VerIterator Ver(Cache,*I);
	316	PkgIterator Pkg = Ver.ParentPkg();
	317
	318	// See if the current version is ok
	319	if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
	320	Pkg.State() == PkgIterator::NeedsNothing)
	321	{
	322	Bad = false;
	323	continue;
	324	}
	325
	326	// Not the install version
	327	if (Cache[Pkg].InstallVer != *I \|\|
	328	(Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
	329	continue;
	330	if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == true)
	331	Bad = !DepAdd(OList,Pkg,Depth);
	332	if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
	333	Bad = false;
	334	}
	335	delete [] VList;
	336	}
	337
	338	if (Bad == true)
	339	{
	340	OList.Flag(Pkg,0,pkgOrderList::Added);
	341	OList.pop_back();
	342	Depth--;
	343	return false;
	344	}
	345	}
	346
	347	Depth--;
	348	return true;
	349	}
	350	/}}}/
	351	// PM::EarlyRemove - Perform removal of packages before their time /{{{/
	352	// ---------------------------------------------------------------------
	353	/* This is called to deal with conflicts arising from unpacking */
	354	bool pkgPackageManager::EarlyRemove(PkgIterator Pkg)
	355	{
	356	if (List->IsNow(Pkg) == false)
	357	return true;
	358
	359	// Already removed it
	360	if (List->IsFlag(Pkg,pkgOrderList::Removed) == true)
	361	return true;
	362
	363	// Woops, it will not be re-installed!
	364	if (List->IsFlag(Pkg,pkgOrderList::InList) == false)
	365	return false;
	366
	367	bool Res = SmartRemove(Pkg);
	368	if (Cache[Pkg].Delete() == false)
	369	List->Flag(Pkg,pkgOrderList::Removed,pkgOrderList::States);
	370
	371	return Res;
372	}
373	/}}}/
374	// PM::SmartRemove - Removal Helper /{{{/
375	// ---------------------------------------------------------------------
376	/* */
377	bool pkgPackageManager::SmartRemove(PkgIterator Pkg)
378	{
379	if (List->IsNow(Pkg) == false)
380	return true;
381
382	List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
383	return Remove(Pkg);
384	}
385	/}}}/
386	// PM::SmartUnPack - Install helper /{{{/
387	// ---------------------------------------------------------------------
388	/* This performs the task of handling pre-depends. */
389	bool pkgPackageManager::SmartUnPack(PkgIterator Pkg)
390	{
391	// Check if it is already unpacked
392	if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
393	Cache[Pkg].Keep() == true)
394	{
395	List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
396	if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
397	if (SmartConfigure(Pkg) == false)
398	return _error->Error("Internal Error, Could not perform immediate configuraton");
399	return true;
400	}
981d20eb	401
6c139d6e AL	402	/* See if this packages install version has any predependencies
	403	that are not met by 'now' packages. */
	404	for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList();
	405	D.end() == false; D++)
	406	{
b50b2c97	407	if (D->Type == pkgCache::Dep::PreDepends)
6c139d6e AL	408	{
	409	// Look for possible ok targets.
	410	Version **VList = D.AllTargets();
	411	bool Bad = true;
	412	for (Version *I = VList; I != 0 && Bad == true; I++)
	413	{
	414	VerIterator Ver(Cache,*I);
	415	PkgIterator Pkg = Ver.ParentPkg();
	416
	417	// See if the current version is ok
	418	if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
	419	Pkg.State() == PkgIterator::NeedsNothing)
	420	{
	421	Bad = false;
	422	continue;
	423	}
	424	}
	425
	426	// Look for something that could be configured.
	427	for (Version *I = VList; I != 0 && Bad == true; I++)
	428	{
	429	VerIterator Ver(Cache,*I);
	430	PkgIterator Pkg = Ver.ParentPkg();
	431
	432	// Not the install version
	433	if (Cache[Pkg].InstallVer != *I \|\|
	434	(Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
	435	continue;
	436
	437	Bad = !SmartConfigure(Pkg);
	438	}
	439
	440	delete [] VList;
	441
	442	if (Bad == true)
	443	return _error->Error("Internal Error, Couldn't configure a pre-depend");
	444
	445	continue;
	446	}
	447
b50b2c97	448	if (D->Type == pkgCache::Dep::Conflicts)
6c139d6e AL	449	{
	450	/* Look for conflicts. Two packages that are both in the install
	451	state cannot conflict so we don't check.. */
	452	Version **VList = D.AllTargets();
	453	for (Version *I = VList; I != 0; I++)
	454	{
	455	VerIterator Ver(Cache,*I);
	456	PkgIterator Pkg = Ver.ParentPkg();
	457
	458	// See if the current version is conflicting
	459	if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true)
	460	{
	461	if (EarlyRemove(Pkg) == false)
	462	return _error->Error("Internal Error, Could not early remove %s",Pkg.Name());
	463	}
	464	}
	465	delete [] VList;
	466	}
	467	}
	468
	469	// Check for reverse conflicts.
	470	CheckRConflicts(Pkg,Pkg.RevDependsList(),
	471	Cache[Pkg].InstVerIter(Cache).VerStr());
	472	for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList();
	473	P.end() == false; P++)
	474	CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
	475
	476	if (Install(Pkg,FileNames[Pkg->ID]) == false)
	477	return false;
	478
	479	List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
	480
	481	// Perform immedate configuration of the package.
	482	if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
	483	if (SmartConfigure(Pkg) == false)
	484	return _error->Error("Internal Error, Could not perform immediate configuraton");
	485
	486	return true;
	487	}
	488	/}}}/
	489	// PM::OrderInstall - Installation ordering routine /{{{/
	490	// ---------------------------------------------------------------------
	491	/* */
	492	bool pkgPackageManager::OrderInstall()
	493	{
7a1b1f8b AL	494	if (CreateOrderList() == false)
7a1b1f8b AL	495	return false;
6c139d6e	496
30e1eab5 AL	497	if (Debug == true)
30e1eab5 AL	498	clog << "Begining to order" << endl;
6c139d6e AL	499
	500	if (List->OrderUnpack() == false)
	501	return _error->Error("Internal ordering error");
	502
30e1eab5 AL	503	if (Debug == true)
	504	clog << "Done ordering" << endl;
	505
6c139d6e AL	506	for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
	507	{
	508	PkgIterator Pkg(Cache,*I);
	509
	510	// Sanity check
	511	if (Cache[Pkg].Keep() == true && Pkg.State() == pkgCache::PkgIterator::NeedsNothing)
	512	return _error->Error("Internal Error, trying to manipulate a kept package");
	513
	514	// Perform a delete or an install
	515	if (Cache[Pkg].Delete() == true)
	516	{
	517	if (SmartRemove(Pkg) == false)
	518	return false;
	519	}
	520	else
	521	if (SmartUnPack(Pkg) == false)
	522	return false;
	523	}
	524
	525	// Final run through the configure phase
	526	if (ConfigureAll() == false)
	527	return false;
	528
	529	// Sanity check
	530	for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
	531	if (List->IsFlag(*I,pkgOrderList::Configured) == false)
	532	return _error->Error("Internal error, packages left unconfigured. %s",
	533	PkgIterator(Cache,*I).Name());
	534
	535	return true;
	536	}
	537	/}}}/
	538	// PM::DoInstall - Does the installation /{{{/
	539	// ---------------------------------------------------------------------
	540	/* This uses the filenames in FileNames and the information in the
	541	DepCache to perform the installation of packages.*/
	542	bool pkgPackageManager::DoInstall()
	543	{
	544	return OrderInstall() && Go();
	545	}
	546	/}}}/