Add even more config options and try to handle configuration problems

arising if we upgrade essential or predependencies which need to be
configured before even unpacking packages depending on them.

4 files changed, 97 insertions, 44 deletions

diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 04e257b1b..5edab5ac7 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -135,9 +135,12 @@ bool pkgDPkgPM::Configure(PkgIterator Pkg)
    if (Pkg.end() == true)
       return false;
 
-   bool static const NoConfigure = _config->FindB("DPkg::NoConfigure",false);
-   if (NoConfigure == false)
-      List.push_back(Item(Item::Configure,Pkg));
+   List.push_back(Item(Item::Configure, Pkg));
+
+   // Use triggers for config calls if we configure "smart"
+   // as otherwise Pre-Depends will not be satisfied, see #526774
+   if (_config->FindB("DPkg::TriggersPending", false) == true)
+      List.push_back(Item(Item::TriggersPending, PkgIterator()));
 
    return true;
 }
@@ -627,7 +630,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
    unsigned int const MaxArgs = _config->FindI("Dpkg::MaxArgs",8*1024);
    unsigned int const MaxArgBytes = _config->FindI("Dpkg::MaxArgBytes",32*1024);
-   bool const NoTriggers = _config->FindB("DPkg::NoTriggers",false);
+   bool const NoTriggers = _config->FindB("DPkg::NoTriggers", false);
+   bool const NoConfTriggers = _config->FindB("DPkg::NoConfTriggers", NoTriggers);
 
    if (RunScripts("DPkg::Pre-Invoke") == false)
       return false;
@@ -637,8 +641,9 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 
    // support subpressing of triggers processing for special
    // cases like d-i that runs the triggers handling manually
-   if(_config->FindB("DPkg::ConfigurePending",_config->FindB("DPkg::NoConfigure",false)) == true)
-      List.push_back(Item(Item::ConfigurePending,PkgIterator()));
+   bool const SmartConf = (_config->Find("PackageManager::Configure", "all") != "all");
+   if (_config->FindB("DPkg::ConfigurePending", SmartConf) == true)
+      List.push_back(Item(Item::ConfigurePending, PkgIterator()));
 
    // map the dpkg states to the operations that are performed
    // (this is sorted in the same way as Item::Ops)
@@ -776,6 +781,13 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 	 Size += strlen(Args[n-1]);
 	 break;
 
+	 case Item::TriggersPending:
+	 Args[n++] = "--triggers-only";
+	 Size += strlen(Args[n-1]);
+	 Args[n++] = "--pending";
+	 Size += strlen(Args[n-1]);
+	 break;
+
 	 case Item::Install:
 	 Args[n++] = "--unpack";
 	 Size += strlen(Args[n-1]);
@@ -784,7 +796,9 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 	 break;
       }
 
-      if (NoTriggers == true && I->Op != Item::ConfigurePending)
+      if (NoTriggers == true && I->Op != Item::TriggersPending &&
+	  I->Op != Item::ConfigurePending &&
+	  (I->Op != Item::Configure || NoConfTriggers == true))
       {
 	 Args[n++] = "--no-triggers";
 	 Size += strlen(Args[n-1]);
diff --git a/apt-pkg/deb/dpkgpm.h b/apt-pkg/deb/dpkgpm.h
index 0c266605a..43e5c7d45 100644
--- a/apt-pkg/deb/dpkgpm.h
+++ b/apt-pkg/deb/dpkgpm.h
@@ -53,7 +53,7 @@ class pkgDPkgPM : public pkgPackageManager
   
    struct Item
    {
-      enum Ops {Install, Configure, Remove, Purge, ConfigurePending} Op;
+      enum Ops {Install, Configure, Remove, Purge, ConfigurePending, TriggersPending} Op;
       string File;
       PkgIterator Pkg;
       Item(Ops Op,PkgIterator Pkg,string File = "") : Op(Op),
diff --git a/apt-pkg/orderlist.cc b/apt-pkg/orderlist.cc
index 01b150722..e5bd8247d 100644
--- a/apt-pkg/orderlist.cc
+++ b/apt-pkg/orderlist.cc
@@ -174,22 +174,35 @@ bool pkgOrderList::DoRun()
 bool pkgOrderList::OrderCritical()
 {
    FileList = 0;
-   
+
    Primary = &pkgOrderList::DepUnPackPre;
    Secondary = 0;
    RevDepends = 0;
    Remove = 0;
    LoopCount = 0;
-   
+
    // Sort
    Me = this;
-   qsort(List,End - List,sizeof(*List),&OrderCompareB);   
-   
+   qsort(List,End - List,sizeof(*List),&OrderCompareB);
+
    if (DoRun() == false)
       return false;
-   
+
    if (LoopCount != 0)
       return _error->Error("Fatal, predepends looping detected");
+
+   if (Debug == true)
+   {
+      clog << "** Critical Unpack ordering done" << endl;
+
+      for (iterator I = List; I != End; I++)
+      {
+	 PkgIterator P(Cache,*I);
+	 if (IsNow(P) == true)
+	    clog << "  " << P.Name() << ' ' << IsMissing(P) << ',' << IsFlag(P,After) << endl;
+      }
+   }
+
    return true;
 }
 									/*}}}*/
@@ -205,7 +218,7 @@ bool pkgOrderList::OrderUnpack(string *FileList)
    if (FileList != 0)
    {
       WipeFlags(After);
-      
+
       // Set the inlist flag
       for (iterator I = List; I != End; I++)
       {
@@ -214,7 +227,7 @@ bool pkgOrderList::OrderUnpack(string *FileList)
 	     Flag(*I,After);
       }
    }
-   
+
    Primary = &pkgOrderList::DepUnPackCrit;
    Secondary = &pkgOrderList::DepConfigure;
    RevDepends = &pkgOrderList::DepUnPackDep;
@@ -225,11 +238,16 @@ bool pkgOrderList::OrderUnpack(string *FileList)
    Me = this;
    qsort(List,End - List,sizeof(*List),&OrderCompareA);
 
-   if (Debug == true)
-      clog << "** Pass A" << endl;
-   if (DoRun() == false)
-      return false;
-   
+   if (_config->Find("PackageManager::Configure","all") == "all")
+   {
+      if (Debug == true)
+	 clog << "** Pass A" << endl;
+      if (DoRun() == false)
+	 return false;
+   }
+   else if (Debug == true)
+      clog << "** Skip A (same as B for non-all Configure)" << endl;
+
    if (Debug == true)
       clog << "** Pass B" << endl;
    Secondary = 0;
@@ -243,7 +261,7 @@ bool pkgOrderList::OrderUnpack(string *FileList)
    Remove = 0;             // Otherwise the libreadline remove problem occures
    if (DoRun() == false)
       return false;
-      
+
    if (Debug == true)
       clog << "** Pass D" << endl;
    LoopCount = 0;
@@ -259,9 +277,9 @@ bool pkgOrderList::OrderUnpack(string *FileList)
       {
 	 PkgIterator P(Cache,*I);
 	 if (IsNow(P) == true)
-	    clog << P.Name() << ' ' << IsMissing(P) << ',' << IsFlag(P,After) << endl;
+	    clog << "  " << P.Name() << ' ' << IsMissing(P) << ',' << IsFlag(P,After) << endl;
       }
-   }   
+   }
 
    return true;
 }
@@ -286,29 +304,35 @@ bool pkgOrderList::OrderConfigure()
 /* Higher scores order earlier */
 int pkgOrderList::Score(PkgIterator Pkg)
 {
+   static int const ScoreDelete = _config->FindI("OrderList::Score::Delete", 500);
+
    // Removal is always done first
    if (Cache[Pkg].Delete() == true)
-      return 200;
-   
+      return ScoreDelete;
+
    // This should never happen..
    if (Cache[Pkg].InstVerIter(Cache).end() == true)
       return -1;
-   
+
+   static int const ScoreEssential = _config->FindI("OrderList::Score::Essential", 200);
+   static int const ScoreImmediate = _config->FindI("OrderList::Score::Immediate", 10);
+   static int const ScorePreDepends = _config->FindI("OrderList::Score::PreDepends", 50);
+
    int Score = 0;
    if ((Pkg->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
-      Score += 100;
+      Score += ScoreEssential;
 
    if (IsFlag(Pkg,Immediate) == true)
-      Score += 10;
-   
-   for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); 
+      Score += ScoreImmediate;
+
+   for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList();
 	D.end() == false; D++)
       if (D->Type == pkgCache::Dep::PreDepends)
       {
-	 Score += 50;
+	 Score += ScorePreDepends;
 	 break;
       }
-      
+
    // Important Required Standard Optional Extra
    signed short PrioMap[] = {0,5,4,3,1,0};
    if (Cache[Pkg].InstVerIter(Cache)->Priority <= 5)
@@ -386,6 +410,7 @@ int pkgOrderList::OrderCompareA(const void *a, const void *b)
    
    int ScoreA = Me->Score(A);
    int ScoreB = Me->Score(B);
+
    if (ScoreA > ScoreB)
       return -1;
    
@@ -422,6 +447,7 @@ int pkgOrderList::OrderCompareB(const void *a, const void *b)
    
    int ScoreA = Me->Score(A);
    int ScoreB = Me->Score(B);
+
    if (ScoreA > ScoreB)
       return -1;
    
diff --git a/apt-pkg/packagemanager.cc b/apt-pkg/packagemanager.cc
index cc9ce21c7..442143516 100644
--- a/apt-pkg/packagemanager.cc
+++ b/apt-pkg/packagemanager.cc
@@ -57,7 +57,10 @@ bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
    if (CreateOrderList() == false)
       return false;
    
-   if (List->OrderUnpack() == false)
+   bool const ordering =
+	_config->FindB("PackageManager::UnpackAll",true) ?
+		List->OrderUnpack() : List->OrderCritical();
+   if (ordering == false)
       return _error->Error("Internal ordering error");
 
    for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
@@ -163,7 +166,7 @@ bool pkgPackageManager::CreateOrderList()
    delete List;
    List = new pkgOrderList(&Cache);
    
-   bool NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true);
+   static bool const NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true);
    
    // Generate the list of affected packages and sort it
    for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
@@ -266,13 +269,16 @@ bool pkgPackageManager::ConfigureAll()
    
    if (OList.OrderConfigure() == false)
       return false;
-   
+
+   std::string const conf = _config->Find("PackageManager::Configure","all");
+   bool const ConfigurePkgs = (conf == "all");
+
    // Perform the configuring
    for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
    {
       PkgIterator Pkg(Cache,*I);
       
-      if (Configure(Pkg) == false)
+      if (ConfigurePkgs == true && Configure(Pkg) == false)
 	 return false;
       
       List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
@@ -291,16 +297,20 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg)
 
    if (DepAdd(OList,Pkg) == false)
       return false;
-   
-   if (OList.OrderConfigure() == false)
-      return false;
-   
+
+   static std::string const conf = _config->Find("PackageManager::Configure","all");
+   static bool const ConfigurePkgs = (conf == "all" || conf == "smart");
+
+   if (ConfigurePkgs == true)
+      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)
+      if (ConfigurePkgs == true && Configure(Pkg) == false)
 	 return false;
       
       List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
@@ -577,9 +587,12 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
    Reset();
    
    if (Debug == true)
-      clog << "Begining to order" << endl;
+      clog << "Beginning to order" << endl;
 
-   if (List->OrderUnpack(FileNames) == false)
+   bool const ordering =
+	_config->FindB("PackageManager::UnpackAll",true) ?
+		List->OrderUnpack(FileNames) : List->OrderCritical();
+   if (ordering == false)
    {
       _error->Error("Internal ordering error");
       return Failed;
@@ -632,7 +645,7 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
 	    return Failed;
       DoneSomething = true;
    }
-   
+
    // Final run through the configure phase
    if (ConfigureAll() == false)
       return Failed;