]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/packagemanager.cc
Merge branch 'debian/jessie' into debian/experimental
[apt.git] / apt-pkg / packagemanager.cc
index d9df28ba3132b2c45481c5e29cc9cf11beaec3cb..d137dc75a1c84bd2340d1f993d839f33383c1c4e 100644 (file)
@@ -373,6 +373,8 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
    std::list<DepIterator> needConfigure;
    do
    {
+      // Check each dependency and see if anything needs to be done
+      // so that it can be configured
       Changed = false;
       for (DepIterator D = instVer.DependsList(); D.end() == false; )
       {
@@ -384,7 +386,8 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
            continue;
         Bad = true;
 
-        // Check for dependencies that have not been unpacked, probably due to loops.
+         // the first pass checks if we its all good, i.e. if we have
+         // to do anything at all
         for (DepIterator Cur = Start; true; ++Cur)
         {
            SPtrArray<Version *> VList = Cur.AllTargets();
@@ -397,7 +400,8 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
               // Check if the current version of the package is available and will satisfy this dependency
               if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
                   List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
-                  DepPkg.State() == PkgIterator::NeedsNothing)
+                  DepPkg.State() == PkgIterator::NeedsNothing &&
+                  (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
               {
                  Bad = false;
                  break;
@@ -410,8 +414,60 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
               if (PkgLoop == true)
               {
                  if (Debug)
-                    std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure" << std::endl;
-                 Bad = false;
+                    std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure";
+                 if (List->IsFlag(DepPkg,pkgOrderList::UnPacked))
+                    Bad = false;
+                 else if (Debug)
+                    std::clog << ", but it isn't unpacked yet";
+                 if (Debug)
+                    std::clog << std::endl;
+              }
+           }
+
+            if (Cur == End || Bad == false)
+              break;
+         }
+
+         // this dependency is in a good state, so we can stop
+         if (Bad == false)
+         {
+            if (Debug)
+               std::clog << OutputInDepth(Depth) << "Found ok dep " << Start.TargetPkg() << std::endl;
+            continue;
+         }
+
+        // Check for dependencies that have not been unpacked, 
+         // probably due to loops.
+        for (DepIterator Cur = Start; true; ++Cur)
+        {
+           SPtrArray<Version *> VList = Cur.AllTargets();
+
+           for (Version **I = VList; *I != 0; ++I)
+           {
+              VerIterator Ver(Cache,*I);
+              PkgIterator DepPkg = Ver.ParentPkg();
+
+              // Check if the current version of the package is available and will satisfy this dependency
+              if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
+                  List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
+                  DepPkg.State() == PkgIterator::NeedsNothing &&
+                  (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
+                  continue;
+
+              // Check if the version that is going to be installed will satisfy the dependency
+              if (Cache[DepPkg].InstallVer != *I || List->IsNow(DepPkg) == false)
+                 continue;
+
+              if (PkgLoop == true)
+              {
+                 if (Debug)
+                    std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure";
+                 if (List->IsFlag(DepPkg,pkgOrderList::UnPacked))
+                    Bad = false;
+                 else if (Debug)
+                    std::clog << ", but it isn't unpacked yet";
+                 if (Debug)
+                    std::clog << std::endl;
               }
               else
               {
@@ -420,6 +476,8 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
                  if (NonLoopingSmart(UNPACK_IMMEDIATE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
                     return false;
               }
+               // at this point we either unpacked a Dep or we are in a loop,
+               // no need to unpack a second one
               break;
            }
 
@@ -436,6 +494,7 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
          return _error->Error("Internal error: MaxLoopCount reached in SmartUnPack (1) for %s, aborting", Pkg.FullName().c_str());
    } while (Changed == true);
 
+   // now go over anything that needs configuring
    Bad = false, Changed = false, i = 0;
    do
    {
@@ -675,7 +734,8 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
 
                  // See if the current version is ok
                  if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
-                     Pkg.State() == PkgIterator::NeedsNothing)
+                     Pkg.State() == PkgIterator::NeedsNothing &&
+                     (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
                  {
                     Bad = false;
                     if (Debug)
@@ -697,8 +757,11 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
                  PkgIterator DepPkg = Ver.ParentPkg();
 
                  // Not the install version
-                 if (Cache[DepPkg].InstallVer != *I ||
-                     (Cache[DepPkg].Keep() == true && DepPkg.State() == PkgIterator::NeedsNothing))
+                 if (Cache[DepPkg].InstallVer != *I)
+                    continue;
+
+                 if (Cache[DepPkg].Keep() == true && DepPkg.State() == PkgIterator::NeedsNothing &&
+                       (Cache[DepPkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
                     continue;
 
                  if (List->IsFlag(DepPkg,pkgOrderList::Configured))
@@ -710,6 +773,16 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
                  // check if it needs unpack or if if configure is enough
                  if (List->IsFlag(DepPkg,pkgOrderList::UnPacked) == false)
                  {
+                    // two packages pre-depending on each other can't be handled sanely
+                    if (List->IsFlag(DepPkg,pkgOrderList::Loop) && PkgLoop)
+                    {
+                       // this isn't an error as there is potential for something else to satisfy it
+                       // (like a provides or an or-group member)
+                       if (Debug)
+                          clog << OutputInDepth(Depth) << "Unpack loop detected between " << DepPkg.FullName() << " and " << Pkg.FullName() << endl;
+                       continue;
+                    }
+
                     if (Debug)
                        clog << OutputInDepth(Depth) << "Trying to SmartUnpack " << DepPkg.FullName() << endl;
                     if (NonLoopingSmart(UNPACK_IMMEDIATE, Pkg, DepPkg, Depth, PkgLoop, &Bad, &Changed) == false)
@@ -796,7 +869,7 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int c
                     // but if it fails ignore this failure and look for alternative ways of solving
                     if (Debug)
                     {
-                       clog << OutputInDepth(Depth) << "Avoidance unpack of " << ConflictPkg.FullName() << " failed for " << End << std::endl;
+                       clog << OutputInDepth(Depth) << "Avoidance unpack of " << ConflictPkg.FullName() << " failed for " << End << " ignoring:" << std::endl;
                        _error->DumpErrors(std::clog);
                     }
                     _error->RevertToStack();
@@ -1012,7 +1085,7 @@ pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
 // PM::DoInstallPostFork - compat /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
+#if APT_PKG_ABI >= 413
 pkgPackageManager::OrderResult
 pkgPackageManager::DoInstallPostFork(int statusFd)
 {
@@ -1033,7 +1106,7 @@ pkgPackageManager::DoInstallPostFork(APT::Progress::PackageManager *progress)
       return Failed;
    
    return Res;
-};
+}
 #else
 pkgPackageManager::OrderResult
 pkgPackageManager::DoInstallPostFork(int statusFd)
@@ -1049,7 +1122,7 @@ pkgPackageManager::DoInstallPostFork(int statusFd)
 // PM::DoInstall - Does the installation                               /*{{{*/
 // ---------------------------------------------------------------------
 /* compat */
-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
+#if APT_PKG_ABI >= 413
 pkgPackageManager::OrderResult 
 pkgPackageManager::DoInstall(int statusFd)
 {
@@ -1073,7 +1146,7 @@ pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd)
 // ---------------------------------------------------------------------
 /* This uses the filenames in FileNames and the information in the
    DepCache to perform the installation of packages.*/
-#if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
+#if APT_PKG_ABI >= 413
 pkgPackageManager::OrderResult 
 pkgPackageManager::DoInstall(APT::Progress::PackageManager *progress)
 {