Merge remote-tracking branch 'upstream/debian/experimental' into feature/srv-records

1 files changed, 207 insertions, 2 deletions

diff --git a/apt-private/private-cacheset.cc b/apt-private/private-cacheset.cc
index cb68024db..8db736507 100644
--- a/apt-private/private-cacheset.cc
+++ b/apt-private/private-cacheset.cc
@@ -4,9 +4,11 @@
 #include <apt-pkg/pkgcache.h>
 #include <apt-pkg/depcache.h>
 #include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/aptconfiguration.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/progress.h>
 #include <apt-pkg/policy.h>
+#include <apt-pkg/strutl.h>
 
 #include <apt-private/private-cacheset.h>
 
@@ -14,7 +16,7 @@
 
 #include <apti18n.h>
 
-bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,		/*{{{*/
                                  APT::VersionContainerInterface * const vci,
                                  OpProgress * const progress)
 {
@@ -22,7 +24,6 @@ bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
     return GetLocalitySortedVersionSet(CacheFile, vci,
                                        null_matcher, progress);
 }
-
 bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
                                  APT::VersionContainerInterface * const vci,
                                  Matcher &matcher,
@@ -88,3 +89,207 @@ bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
       progress->Done();
    return true;
 }
+									/*}}}*/
+
+// CacheSetHelper saving virtual packages				/*{{{*/
+pkgCache::VerIterator CacheSetHelperVirtuals::canNotGetVersion(
+      enum CacheSetHelper::VerSelector const select,
+      pkgCacheFile &Cache,
+      pkgCache::PkgIterator const &Pkg)
+{
+   if (select == NEWEST || select == CANDIDATE || select == ALL)
+      virtualPkgs.insert(Pkg);
+   return CacheSetHelper::canNotGetVersion(select, Cache, Pkg);
+}
+void CacheSetHelperVirtuals::canNotFindVersion(
+      enum CacheSetHelper::VerSelector const select,
+      APT::VersionContainerInterface * vci,
+      pkgCacheFile &Cache,
+      pkgCache::PkgIterator const &Pkg)
+{
+   if (select == NEWEST || select == CANDIDATE || select == ALL)
+      virtualPkgs.insert(Pkg);
+   return CacheSetHelper::canNotFindVersion(select, vci, Cache, Pkg);
+}
+CacheSetHelperVirtuals::CacheSetHelperVirtuals(bool const ShowErrors, GlobalError::MsgType const &ErrorType) :
+   CacheSetHelper{ShowErrors, ErrorType}
+{}
+									/*}}}*/
+
+// CacheSetHelperAPTGet - responsible for message telling from the CacheSets/*{{{*/
+CacheSetHelperAPTGet::CacheSetHelperAPTGet(std::ostream &out) :
+   APT::CacheSetHelper{true}, out(out)
+{
+   explicitlyNamed = true;
+}
+void CacheSetHelperAPTGet::showTaskSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern)
+{
+   ioprintf(out, _("Note, selecting '%s' for task '%s'\n"),
+	 Pkg.FullName(true).c_str(), pattern.c_str());
+   explicitlyNamed = false;
+}
+void CacheSetHelperAPTGet::showFnmatchSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern)
+{
+   ioprintf(out, _("Note, selecting '%s' for glob '%s'\n"),
+	 Pkg.FullName(true).c_str(), pattern.c_str());
+   explicitlyNamed = false;
+}
+void CacheSetHelperAPTGet::showRegExSelection(pkgCache::PkgIterator const &Pkg, std::string const &pattern)
+{
+   ioprintf(out, _("Note, selecting '%s' for regex '%s'\n"),
+	 Pkg.FullName(true).c_str(), pattern.c_str());
+   explicitlyNamed = false;
+}
+void CacheSetHelperAPTGet::showSelectedVersion(pkgCache::PkgIterator const &/*Pkg*/, pkgCache::VerIterator const Ver,
+      std::string const &ver, bool const /*verIsRel*/)
+{
+   if (ver == Ver.VerStr())
+      return;
+   selectedByRelease.push_back(make_pair(Ver, ver));
+}
+bool CacheSetHelperAPTGet::showVirtualPackageErrors(pkgCacheFile &Cache)
+{
+   if (virtualPkgs.empty() == true)
+      return true;
+   for (APT::PackageSet::const_iterator Pkg = virtualPkgs.begin();
+	 Pkg != virtualPkgs.end(); ++Pkg) {
+      if (Pkg->ProvidesList != 0) {
+	 ioprintf(c1out,_("Package %s is a virtual package provided by:\n"),
+	       Pkg.FullName(true).c_str());
+
+	 pkgCache::PrvIterator I = Pkg.ProvidesList();
+	 unsigned short provider = 0;
+	 for (; I.end() == false; ++I) {
+	    pkgCache::PkgIterator Pkg = I.OwnerPkg();
+
+	    if (Cache[Pkg].CandidateVerIter(Cache) == I.OwnerVer()) {
+	       c1out << "  " << Pkg.FullName(true) << " " << I.OwnerVer().VerStr();
+	       if (Cache[Pkg].Install() == true && Cache[Pkg].NewInstall() == false)
+		  c1out << _(" [Installed]");
+	       c1out << std::endl;
+	       ++provider;
+	    }
+	 }
+	 // if we found no candidate which provide this package, show non-candidates
+	 if (provider == 0)
+	    for (I = Pkg.ProvidesList(); I.end() == false; ++I)
+	       c1out << "  " << I.OwnerPkg().FullName(true) << " " << I.OwnerVer().VerStr()
+		  << _(" [Not candidate version]") << std::endl;
+	 else
+	    out << _("You should explicitly select one to install.") << std::endl;
+      } else {
+	 ioprintf(c1out,
+	       _("Package %s is not available, but is referred to by another package.\n"
+		  "This may mean that the package is missing, has been obsoleted, or\n"
+		  "is only available from another source\n"),Pkg.FullName(true).c_str());
+
+	 std::string List;
+	 std::string VersionsList;
+	 std::vector<bool> Seen(Cache.GetPkgCache()->Head().PackageCount, false);
+	 APT::PackageList pkglist;
+	 for (pkgCache::DepIterator Dep = Pkg.RevDependsList();
+	       Dep.end() == false; ++Dep) {
+	    if (Dep->Type != pkgCache::Dep::Replaces)
+	       continue;
+	    pkgCache::PkgIterator const DP = Dep.ParentPkg();
+	    if (Seen[DP->ID] == true)
+	       continue;
+	    Seen[DP->ID] = true;
+	    pkglist.insert(DP);
+	 }
+	 ShowList(c1out, _("However the following packages replace it:"), pkglist,
+	       &AlwaysTrue, &PrettyFullName, &EmptyString);
+      }
+      c1out << std::endl;
+   }
+   return false;
+}
+pkgCache::VerIterator CacheSetHelperAPTGet::canNotFindCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg)
+{
+   APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, CacheSetHelper::CANDIDATE);
+   if (verset.empty() == false)
+      return *(verset.begin());
+   else if (ShowError == true) {
+      _error->Error(_("Package '%s' has no installation candidate"),Pkg.FullName(true).c_str());
+      virtualPkgs.insert(Pkg);
+   }
+   return pkgCache::VerIterator(Cache, 0);
+}
+pkgCache::VerIterator CacheSetHelperAPTGet::canNotFindNewestVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg)
+{
+   if (Pkg->ProvidesList != 0)
+   {
+      APT::VersionSet const verset = tryVirtualPackage(Cache, Pkg, CacheSetHelper::NEWEST);
+      if (verset.empty() == false)
+	 return *(verset.begin());
+      if (ShowError == true)
+	 ioprintf(out, _("Virtual packages like '%s' can't be removed\n"), Pkg.FullName(true).c_str());
+   }
+   else
+   {
+      pkgCache::GrpIterator Grp = Pkg.Group();
+      pkgCache::PkgIterator P = Grp.PackageList();
+      for (; P.end() != true; P = Grp.NextPkg(P))
+      {
+	 if (P == Pkg)
+	    continue;
+	 if (P->CurrentVer != 0) {
+	    // TRANSLATORS: Note, this is not an interactive question
+	    ioprintf(c1out,_("Package '%s' is not installed, so not removed. Did you mean '%s'?\n"),
+		  Pkg.FullName(true).c_str(), P.FullName(true).c_str());
+	    break;
+	 }
+      }
+      if (P.end() == true)
+	 ioprintf(c1out,_("Package '%s' is not installed, so not removed\n"),Pkg.FullName(true).c_str());
+   }
+   return pkgCache::VerIterator(Cache, 0);
+}
+APT::VersionSet CacheSetHelperAPTGet::tryVirtualPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg,
+      CacheSetHelper::VerSelector const select)
+{
+   /* This is a pure virtual package and there is a single available
+      candidate providing it. */
+   if (unlikely(Cache[Pkg].CandidateVer != 0) || Pkg->ProvidesList == 0)
+      return APT::VersionSet();
+
+   pkgCache::PkgIterator Prov;
+   bool found_one = false;
+   for (pkgCache::PrvIterator P = Pkg.ProvidesList(); P; ++P) {
+      pkgCache::VerIterator const PVer = P.OwnerVer();
+      pkgCache::PkgIterator const PPkg = PVer.ParentPkg();
+
+      /* Ignore versions that are not a candidate. */
+      if (Cache[PPkg].CandidateVer != PVer)
+	 continue;
+
+      if (found_one == false) {
+	 Prov = PPkg;
+	 found_one = true;
+      } else if (PPkg != Prov) {
+	 // same group, so it's a foreign package
+	 if (PPkg->Group == Prov->Group) {
+	    // do we already have the requested arch?
+	    if (strcmp(Pkg.Arch(), Prov.Arch()) == 0 ||
+		  strcmp(Prov.Arch(), "all") == 0 ||
+		  unlikely(strcmp(PPkg.Arch(), Prov.Arch()) == 0)) // packages have only on candidate, but just to be sure
+	       continue;
+	    // see which architecture we prefer more and switch to it
+	    std::vector<std::string> archs = APT::Configuration::getArchitectures();
+	    if (std::find(archs.begin(), archs.end(), PPkg.Arch()) < std::find(archs.begin(), archs.end(), Prov.Arch()))
+	       Prov = PPkg;
+	    continue;
+	 }
+	 found_one = false; // we found at least two
+	 break;
+      }
+   }
+
+   if (found_one == true) {
+      ioprintf(out, _("Note, selecting '%s' instead of '%s'\n"),
+	    Prov.FullName(true).c_str(), Pkg.FullName(true).c_str());
+      return APT::VersionSet::FromPackage(Cache, Prov, select, *this);
+   }
+   return APT::VersionSet();
+}
+									/*}}}*/