merged from donkult

8 files changed, 170 insertions, 46 deletions

diff --git a/apt-pkg/cacheiterators.h b/apt-pkg/cacheiterators.h
index 5382f3838..e6a0fddb0 100644
--- a/apt-pkg/cacheiterators.h
+++ b/apt-pkg/cacheiterators.h
@@ -283,6 +283,8 @@ class pkgCache::DepIterator : public Iterator<Dependency, DepIterator> {
 	inline bool Reverse() const {return Type == DepRev;};
 	bool IsCritical() const;
 	bool IsNegative() const;
+	bool IsIgnorable(PrvIterator const &Prv) const;
+	bool IsIgnorable(PkgIterator const &Pkg) const;
 	void GlobOr(DepIterator &Start,DepIterator &End);
 	Version **AllTargets() const;
 	bool SmartTargetPkg(PkgIterator &Result) const;
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 4a1bf42d5..c08f52c25 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -107,7 +107,7 @@ ionice(int PID)
 {
    if (!FileExists("/usr/bin/ionice"))
       return false;
-   pid_t Process = ExecFork();      
+   pid_t Process = ExecFork();
    if (Process == 0)
    {
       char buf[32];
@@ -828,6 +828,40 @@ static int racy_pselect(int nfds, fd_set *readfds, fd_set *writefds,
 */
 bool pkgDPkgPM::Go(int OutStatusFd)
 {
+   // Generate the base argument list for dpkg
+   std::vector<const char *> Args;
+   unsigned long StartSize = 0;
+   string const Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
+   Args.push_back(Tmp.c_str());
+   StartSize += Tmp.length();
+
+   // Stick in any custom dpkg options
+   Configuration::Item const *Opts = _config->Tree("DPkg::Options");
+   if (Opts != 0)
+   {
+      Opts = Opts->Child;
+      for (; Opts != 0; Opts = Opts->Next)
+      {
+	 if (Opts->Value.empty() == true)
+	    continue;
+	 Args.push_back(Opts->Value.c_str());
+	 StartSize += Opts->Value.length();
+      }
+   }
+
+   size_t const BaseArgs = Args.size();
+   // we need to detect if we can qualify packages with the architecture or not
+   Args.push_back("--assert-multi-arch");
+   Args.push_back(NULL);
+
+   pid_t dpkgAssertMultiArch = ExecFork();
+   if (dpkgAssertMultiArch == 0)
+   {
+      execv(Args[0], (char**) &Args[0]);
+      _error->WarningE("dpkgGo", "Can't detect if dpkg supports multi-arch!");
+      _exit(2);
+   }
+
    fd_set rfds;
    struct timespec tv;
    sigset_t sigmask;
@@ -904,27 +938,20 @@ bool pkgDPkgPM::Go(int OutStatusFd)
    // create log
    OpenLog();
 
-   // Generate the base argument list for dpkg
-   std::vector<const char *> Args;
-   unsigned long StartSize = 0;
-   string const Tmp = _config->Find("Dir::Bin::dpkg","dpkg");
-   Args.push_back(Tmp.c_str());
-   StartSize += Tmp.length();
-
-   // Stick in any custom dpkg options
-   Configuration::Item const *Opts = _config->Tree("DPkg::Options");
-   if (Opts != 0)
+   bool dpkgMultiArch = false;
+   if (dpkgAssertMultiArch > 0)
    {
-      Opts = Opts->Child;
-      for (; Opts != 0; Opts = Opts->Next)
+      int Status = 0;
+      while (waitpid(dpkgAssertMultiArch, &Status, 0) != dpkgAssertMultiArch)
       {
-	 if (Opts->Value.empty() == true)
+	 if (errno == EINTR)
 	    continue;
-	 Args.push_back(Opts->Value.c_str());
-	 StartSize += Opts->Value.length();
+	 _error->WarningE("dpkgGo", _("Waited for %s but it wasn't there"), "dpkg --assert-multi-arch");
+	 break;
       }
+      if (WIFEXITED(Status) == true && WEXITSTATUS(Status) == 0)
+	 dpkgMultiArch = true;
    }
-   size_t const BaseArgs = Args.size();
 
    // this loop is runs once per operation
    for (vector<Item>::const_iterator I = List.begin(); I != List.end();)
@@ -964,14 +991,17 @@ bool pkgDPkgPM::Go(int OutStatusFd)
       if (J - I > (signed)MaxArgs)
       {
 	 J = I + MaxArgs;
-	 Args.reserve(MaxArgs + 10);
+	 unsigned long const size = MaxArgs + 10;
+	 Args.reserve(size);
+	 Packages.reserve(size);
       }
       else
       {
-	 Args.reserve((J - I) + 10);
+	 unsigned long const size = (J - I) + 10;
+	 Args.reserve(size);
+	 Packages.reserve(size);
       }
 
-      
       int fd[2];
       pipe(fd);
 
@@ -1046,7 +1076,8 @@ bool pkgDPkgPM::Go(int OutStatusFd)
 	       continue;
 	    if (I->Op == Item::Configure && disappearedPkgs.find(I->Pkg.Name()) != disappearedPkgs.end())
 	       continue;
-	    if (I->Pkg.Arch() == nativeArch || !strcmp(I->Pkg.Arch(), "all"))
+	    // We keep this here to allow "smooth" transitions from e.g. multiarch dpkg/ubuntu to dpkg/debian
+	    if (dpkgMultiArch == false && (I->Pkg.Arch() == nativeArch || !strcmp(I->Pkg.Arch(), "all")))
 	    {
 	       char const * const name = I->Pkg.Name();
 	       ADDARG(name);
diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index 0f4715fad..7aaf1c61b 100644
--- a/apt-pkg/depcache.cc
+++ b/apt-pkg/depcache.cc
@@ -371,19 +371,10 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
    
    // Check the providing packages
    PrvIterator P = Dep.TargetPkg().ProvidesList();
-   PkgIterator Pkg = Dep.ParentPkg();
    for (; P.end() != true; ++P)
    {
-      if (Dep.IsNegative() == true)
-      {
-	 /* Provides may never be applied against the same package (or group)
-	    if it is a conflicts. See the comment above. */
-	 if (P.OwnerPkg()->Group == Pkg->Group)
-	    continue;
-	 // Implicit group-conflicts should not be applied on providers of other groups
-	 if (Pkg->Group == Dep.TargetPkg()->Group && P.OwnerPkg()->Group != Pkg->Group)
-	    continue;
-      }
+      if (Dep.IsIgnorable(P) == true)
+	 continue;
 
       // Check if the provides is a hit
       if (Type == NowVersion)
diff --git a/apt-pkg/packagemanager.cc b/apt-pkg/packagemanager.cc
index 4f9762701..c9d7a3024 100644
--- a/apt-pkg/packagemanager.cc
+++ b/apt-pkg/packagemanager.cc
@@ -250,7 +250,7 @@ bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D,
 	 continue;
       
       // Ignore self conflicts, ignore conflicts from irrelevent versions
-      if (D.ParentPkg() == Pkg || D.ParentVer() != D.ParentPkg().CurrentVer())
+      if (D.IsIgnorable(Pkg) || D.ParentVer() != D.ParentPkg().CurrentVer())
 	 continue;
       
       if (Cache.VS().CheckDep(Ver,D->CompareOp,D.TargetVer()) == false)
diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index c854249e4..997c70768 100644
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -619,13 +619,12 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
       // Walk along the actual package providing versions
       for (VerIterator I = DPkg.VersionList(); I.end() == false; ++I)
       {
-	 if (Owner->VS->CheckDep(I.VerStr(),S->CompareOp,TargetVer()) == false)
+	 if (IsIgnorable(I.ParentPkg()) == true)
 	    continue;
 
-	 if (IsNegative() == true &&
-	     ParentPkg() == I.ParentPkg())
+	 if (Owner->VS->CheckDep(I.VerStr(),S->CompareOp,TargetVer()) == false)
 	    continue;
-	 
+
 	 Size++;
 	 if (Res != 0)
 	    *End++ = I;
@@ -634,13 +633,12 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
       // Follow all provides
       for (PrvIterator I = DPkg.ProvidesList(); I.end() == false; ++I)
       {
-	 if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false)
+	 if (IsIgnorable(I) == true)
 	    continue;
-	 
-	 if (IsNegative() == true &&
-	     ParentPkg()->Group == I.OwnerPkg()->Group)
+
+	 if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false)
 	    continue;
-	 
+
 	 Size++;
 	 if (Res != 0)
 	    *End++ = I.OwnerVer();
@@ -682,6 +680,34 @@ void pkgCache::DepIterator::GlobOr(DepIterator &Start,DepIterator &End)
    }
 }
 									/*}}}*/
+// DepIterator::IsIgnorable - should this packag/providr be ignored?	/*{{{*/
+// ---------------------------------------------------------------------
+/* Deps like self-conflicts should be ignored as well as implicit conflicts
+   on virtual packages. */
+bool pkgCache::DepIterator::IsIgnorable(PkgIterator const &Pkg) const
+{
+   if (ParentPkg() == TargetPkg())
+      return IsNegative();
+
+   return false;
+}
+bool pkgCache::DepIterator::IsIgnorable(PrvIterator const &Prv) const
+{
+   if (IsNegative() == false)
+      return false;
+
+   PkgIterator const Pkg = ParentPkg();
+   /* Provides may never be applied against the same package (or group)
+      if it is a conflicts. See the comment above. */
+   if (Prv.OwnerPkg()->Group == Pkg->Group)
+      return true;
+   // Implicit group-conflicts should not be applied on providers of other groups
+   if (Pkg->Group == TargetPkg()->Group && Prv.OwnerPkg()->Group != Pkg->Group)
+      return true;
+
+   return false;
+}
+									/*}}}*/
 // ostream operator to handle string representation of a dependecy	/*{{{*/
 // ---------------------------------------------------------------------
 /* */
diff --git a/debian/changelog b/debian/changelog
index 7ed580d3f..e524081c8 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,8 +4,13 @@ apt (0.8.16~exp10) UNRELEASED; urgency=low
   * apt-pkg/depcache.cc:
     - implicit conflicts (for multiarch) are supposed to conflict
       only with real packages, not with virtual providers
+  * apt-pkg/pkgcache.cc:
+    - ignore implicit conflicts on providers in AllTarget, too
+  * apt-pkg/deb/dpkgpm.cc:
+    - check if dpkg supports multiarch with --assert-multi-arch
+      and if it does be always explicit about the architecture
 
- -- David Kalnischkies <kalnischkies@gmail.com>  Wed, 11 Jan 2012 17:59:33 +0100
+ -- David Kalnischkies <kalnischkies@gmail.com>  Fri, 13 Jan 2012 17:29:07 +0100
 
 apt (0.8.16~exp9ubuntu1) UNRELEASED; urgency=low
 
diff --git a/test/integration/test-dpkg-assert-multi-arch b/test/integration/test-dpkg-assert-multi-arch
new file mode 100755
index 000000000..b1ec73e18
--- /dev/null
+++ b/test/integration/test-dpkg-assert-multi-arch
@@ -0,0 +1,53 @@
+#!/bin/sh
+set -e
+
+TESTDIR=$(readlink -f $(dirname $0))
+. $TESTDIR/framework
+setupenvironment
+configarchitecture 'amd64' 'i386'
+
+buildsimplenativepackage 'native-pkg' 'amd64' '1.0' 'stable'
+buildsimplenativepackage 'foreign-pkg' 'i386' '0.5' 'stable' 'Multi-Arch: foreign'
+buildsimplenativepackage 'same-lib' 'amd64,i386' '0.5' 'stable' 'Multi-Arch: same'
+
+setupaptarchive
+
+testqualifier() {
+	msgtest 'Test for correct qualifier mode' $2
+	GIVEN="$(aptget install $1 -qq -o Debug::pkgDPkgPM=1 2>&1 | grep -- '--configure' | sed -e 's/^.*--configure \([^ ]*\).*$/\1/')"
+	test "$GIVEN" = "$2" && msgpass || msgfail
+}
+
+# non-multiarch or "ubuntus" old multiarchified dpkg
+echo 'Dir::Bin::dpkg "./dpkg-wrapper";' > rootdir/etc/apt/apt.conf.d/99dpkgwrapper
+echo '#! /bin/sh
+if echo "$*" | grep -q -- "--assert-multi-arch"; then
+	return 2;
+fi
+return $*' > ./dpkg-wrapper
+chmod +x ./dpkg-wrapper
+
+testqualifier 'native-pkg' 'native-pkg'
+testqualifier 'native-pkg:amd64' 'native-pkg'
+testqualifier 'foreign-pkg' 'foreign-pkg:i386'
+testqualifier 'foreign-pkg:i386' 'foreign-pkg:i386'
+testqualifier 'same-lib' 'same-lib'
+testqualifier 'same-lib:amd64' 'same-lib'
+testqualifier 'same-lib:i386' 'same-lib:i386'
+
+# multiarch dpkg (new interface version)
+
+echo 'Dir::Bin::dpkg "./dpkg-wrapper";' > rootdir/etc/apt/apt.conf.d/99dpkgwrapper
+echo '#! /bin/sh
+if echo "$*" | grep -q -- "--assert-multi-arch"; then
+	return 0;
+fi
+return $*' > ./dpkg-wrapper
+
+testqualifier 'native-pkg' 'native-pkg:amd64'
+testqualifier 'native-pkg:amd64' 'native-pkg:amd64'
+testqualifier 'foreign-pkg' 'foreign-pkg:i386'
+testqualifier 'foreign-pkg:i386' 'foreign-pkg:i386'
+testqualifier 'same-lib' 'same-lib:amd64'
+testqualifier 'same-lib:amd64' 'same-lib:amd64'
+testqualifier 'same-lib:i386' 'same-lib:i386'
diff --git a/test/integration/test-implicit-conflicts-real-not-virtual b/test/integration/test-implicit-conflicts-real-not-virtual
index 9d13e1709..c9fca4edf 100755
--- a/test/integration/test-implicit-conflicts-real-not-virtual
+++ b/test/integration/test-implicit-conflicts-real-not-virtual
@@ -10,6 +10,8 @@ insertpackage 'unstable-mp' 'crda' 'i386,amd64' '1.1.1-1ubuntu4mp' 'Provides: wi
 Multi-Arch: foreign'
 insertpackage 'unstable-m' 'crda' 'i386,amd64' '1.1.1-1ubuntu4m' 'Multi-Arch: foreign'
 insertpackage 'unstable-p' 'crda' 'i386,amd64' '1.1.1-1ubuntu4p' 'Provides: wireless-crda'
+insertpackage 'unstable' 'wireless-crda' 'i386,amd64' '1.16'
+
 
 insertinstalledpackage 'wireless-crda' 'amd64' '1.14'
 
@@ -19,7 +21,7 @@ testequal 'Reading package lists...
 Building dependency tree...
 The following NEW packages will be installed:
   crda
-0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
 Inst crda (1.1.1-1ubuntu4m unstable-m [amd64])
 Conf crda (1.1.1-1ubuntu4m unstable-m [amd64])' aptget install crda -s -t unstable-m
 
@@ -27,7 +29,7 @@ testequal 'Reading package lists...
 Building dependency tree...
 The following NEW packages will be installed:
   crda
-0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
 Inst crda (1.1.1-1ubuntu4p unstable-p [amd64])
 Conf crda (1.1.1-1ubuntu4p unstable-p [amd64])' aptget install crda -s -t unstable-p
 
@@ -35,6 +37,20 @@ testequal 'Reading package lists...
 Building dependency tree...
 The following NEW packages will be installed:
   crda
-0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
+0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
 Inst crda (1.1.1-1ubuntu4mp unstable-mp [amd64])
 Conf crda (1.1.1-1ubuntu4mp unstable-mp [amd64])' aptget install crda -s -t unstable-mp
+
+rm rootdir/var/lib/dpkg/status
+insertinstalledpackage 'crda' 'amd64' '1.1.1-1ubuntu4mp' 'Provides: wireless-crda
+Conflicts: wireless-crda (<< 1.15)
+Replaces: wireless-crda ( << 1.15)
+Multi-arch: foreign'
+
+testequal 'Reading package lists...
+Building dependency tree...
+The following NEW packages will be installed:
+  wireless-crda
+0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded.
+Inst wireless-crda (1.16 unstable [amd64])
+Conf wireless-crda (1.16 unstable [amd64])' aptget install wireless-crda -s -t unstable