* apt-pkg/packagemanager.cc:

  - ensure for Multi-Arch:same packages that they are unpacked in
    lock step even in immediate configuration (Closes: #618288)

apt-pkg/packagemanager.cc

@@ -319,6 +319,17 @@ bool pkgPackageManager::SmartConfigure(PkgIterator Pkg)
       List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
    }
 
+   if (Cache[Pkg].InstVerIter(Cache)->MultiArch == pkgCache::Version::Same)
+      for (PkgIterator P = Pkg.Group().PackageList();
+	   P.end() == false; P = Pkg.Group().NextPkg(P))
+      {
+	 if (Pkg == P || List->IsFlag(P,pkgOrderList::Configured) == true ||
+	     Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
+	      (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
+	    continue;
+	 SmartConfigure(P);
+      }
+
    // Sanity Check
    if (List->IsFlag(Pkg,pkgOrderList::Configured) == false)
       return _error->Error(_("Could not perform immediate configuration on '%s'. "
@@ -474,22 +485,29 @@ bool pkgPackageManager::SmartRemove(PkgIterator Pkg)
 // ---------------------------------------------------------------------
 /* This performs the task of handling pre-depends. */
 bool pkgPackageManager::SmartUnPack(PkgIterator Pkg)
+{
+   return SmartUnPack(Pkg, true);
+}
+bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate)
 {
    // 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 (Immediate == true &&
+	  List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
 	 if (SmartConfigure(Pkg) == false)
 	    return _error->Error(_("Could not perform immediate configuration on already unpacked '%s'. "
 			"Please see man 5 apt.conf under APT::Immediate-Configure for details."),Pkg.Name());
       return true;
    }
 
+   VerIterator const instVer = Cache[Pkg].InstVerIter(Cache);
+
    /* See if this packages install version has any predependencies
       that are not met by 'now' packages. */
-   for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); 
+   for (DepIterator D = instVer.DependsList();
 	D.end() == false; )
    {
       // Compute a single dependency element (glob or)
@@ -575,20 +593,32 @@ bool pkgPackageManager::SmartUnPack(PkgIterator Pkg)
 
    // Check for reverse conflicts.
    if (CheckRConflicts(Pkg,Pkg.RevDependsList(),
-		   Cache[Pkg].InstVerIter(Cache).VerStr()) == false)
+		   instVer.VerStr()) == false)
       return false;
    
-   for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList(); 
+   for (PrvIterator P = instVer.ProvidesList();
 	P.end() == false; P++)
       CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
 
+   List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
+
+   if (instVer->MultiArch == pkgCache::Version::Same)
+      for (PkgIterator P = Pkg.Group().PackageList();
+	   P.end() == false; P = Pkg.Group().NextPkg(P))
+      {
+	 if (Pkg == P || List->IsFlag(P,pkgOrderList::UnPacked) == true ||
+	     Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
+	      (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
+	    continue;
+	 SmartUnPack(P, false);
+      }
+
    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 (Immediate == true &&
+       List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
       if (SmartConfigure(Pkg) == false)
 	 return _error->Error(_("Could not perform immediate configuration on '%s'. "
 			"Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.Name(),2);

apt-pkg/packagemanager.h

@@ -69,7 +69,9 @@ class pkgPackageManager : protected pkgCache::Namespace
    // Install helpers
    bool ConfigureAll();
    bool SmartConfigure(PkgIterator Pkg);
+   //FIXME: merge on abi break
    bool SmartUnPack(PkgIterator Pkg);
+   bool SmartUnPack(PkgIterator Pkg, bool const Immediate);
    bool SmartRemove(PkgIterator Pkg);
    bool EarlyRemove(PkgIterator Pkg);   
    

debian/changelog

@@ -56,8 +56,11 @@ apt (0.8.14.2) UNRELEASED; urgency=low
       quote an already quoted string in the request later (Closes: #602412)
   * apt-pkg/contrib/netrc.cc:
     - replace non-posix gnu-extension strdupa with strdup
+  * apt-pkg/packagemanager.cc:
+    - ensure for Multi-Arch:same packages that they are unpacked in
+      lock step even in immediate configuration (Closes: #618288)
 
- -- David Kalnischkies <kalnischkies@gmail.com>  Fri, 13 May 2011 01:08:04 +0200
+ -- David Kalnischkies <kalnischkies@gmail.com>  Mon, 16 May 2011 11:41:05 +0200
 
 apt (0.8.14.1) unstable; urgency=low
 

test/integration/test-bug-618288-multiarch-same-lockstep

@@ -0,0 +1,32 @@
+#!/bin/sh
+set -e
+
+TESTDIR=$(readlink -f $(dirname $0))
+. $TESTDIR/framework
+setupenvironment
+configarchitecture 'amd64' 'i386'
+
+insertinstalledpackage 'libsame' 'i386,amd64' '1' 'Multi-Arch: same' 'required'
+insertinstalledpackage 'apt' 'i386' '1' 'Depends: libsame (= 1)
+Essential: yes' 'required'
+insertinstalledpackage 'apt2' 'amd64' '1' 'Depends: libsame (= 1)
+Essential: yes' 'required'
+buildsimplenativepackage 'libsame' 'i386,amd64' '2' 'unstable' 'Multi-Arch: same' '' 'required'
+buildsimplenativepackage 'apt' 'i386' '2' 'unstable' 'Depends: libsame (= 2)' '' 'required'
+buildsimplenativepackage 'apt2' 'amd64' '2' 'unstable' 'Depends: libsame (= 2)' '' 'required'
+
+setupaptarchive
+
+testequal 'Reading package lists...
+Building dependency tree...
+The following packages will be upgraded:
+  apt:i386 apt2 libsame libsame:i386
+4 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
+Inst libsame [1] (2 unstable [amd64]) [libsame:amd64 on libsame:i386] [libsame:i386 on libsame:amd64] [libsame:i386 apt2:amd64 ]
+Inst libsame:i386 [1] (2 unstable [i386]) [apt2:amd64 apt:i386 ]
+Conf libsame:i386 (2 unstable [i386]) [apt2:amd64 apt:i386 ]
+Conf libsame (2 unstable [amd64]) [apt2:amd64 apt:i386 ]
+Inst apt2 [1] (2 unstable [amd64]) [apt:i386 ]
+Conf apt2 (2 unstable [amd64]) [apt:i386 ]
+Inst apt:i386 [1] (2 unstable [i386])
+Conf apt:i386 (2 unstable [i386])' aptget dist-upgrade -s