Merge remote-tracking branch 'donkult/debian/sid' into debian/sid

5 files changed, 68 insertions, 42 deletions

diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index 222b78671..04505b35a 100644
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -143,6 +143,32 @@ void pkgAcquire::Item::Rename(string From,string To)
    }   
 }
 									/*}}}*/
+bool pkgAcquire::Item::RenameOnError(pkgAcquire::Item::RenameOnErrorState const error)/*{{{*/
+{
+   if(FileExists(DestFile))
+      Rename(DestFile, DestFile + ".FAILED");
+
+   switch (error)
+   {
+      case HashSumMismatch:
+	 ErrorText = _("Hash Sum mismatch");
+	 Status = StatAuthError;
+	 ReportMirrorFailure("HashChecksumFailure");
+	 break;
+      case SizeMismatch:
+	 ErrorText = _("Size mismatch");
+	 Status = StatAuthError;
+	 ReportMirrorFailure("SizeFailure");
+	 break;
+      case InvalidFormat:
+	 ErrorText = _("Invalid file format");
+	 Status = StatError;
+	 // do not report as usually its not the mirrors fault, but Portal/Proxy
+	 break;
+   }
+   return false;
+}
+									/*}}}*/
 // Acquire::Item::ReportMirrorFailure					/*{{{*/
 // ---------------------------------------------------------------------
 void pkgAcquire::Item::ReportMirrorFailure(string FailCode)
@@ -595,9 +621,7 @@ void pkgAcqIndexDiffs::Finish(bool allDone)
 
       if(!ExpectedHash.empty() && !ExpectedHash.VerifyFile(DestFile))
       {
-	 Status = StatAuthError;
-	 ErrorText = _("MD5Sum mismatch");
-	 Rename(DestFile,DestFile + ".FAILED");
+	 RenameOnError(HashSumMismatch);
 	 Dequeue();
 	 return;
       }
@@ -866,10 +890,7 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
 
       if (!ExpectedHash.empty() && ExpectedHash.toStr() != Hash)
       {
-         Status = StatAuthError;
-         ErrorText = _("Hash Sum mismatch");
-         Rename(DestFile,DestFile + ".FAILED");
-	 ReportMirrorFailure("HashChecksumFailure");
+	 RenameOnError(HashSumMismatch);
          return;
       }
 
@@ -878,22 +899,18 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
       if (Verify == true)
       {
 	 FileFd fd(DestFile, FileFd::ReadOnly);
-	 pkgTagSection sec;
-	 pkgTagFile tag(&fd);
-
-         // Only test for correctness if the file is not empty (empty is ok)
-         if (fd.Size() > 0) {
-            if (_error->PendingError() || !tag.Step(sec)) {
-               Status = StatError;
-               _error->DumpErrors();
-               Rename(DestFile,DestFile + ".FAILED");
-               return;
-            } else if (!sec.Exists("Package")) {
-               Status = StatError;
-               ErrorText = ("Encountered a section with no Package: header");
-               Rename(DestFile,DestFile + ".FAILED");
-               return;
-            }
+	 // Only test for correctness if the file is not empty (empty is ok)
+	 if (fd.FileSize() > 0)
+	 {
+	    pkgTagSection sec;
+	    pkgTagFile tag(&fd);
+
+	    // all our current indexes have a field 'Package' in each section
+	    if (_error->PendingError() == true || tag.Step(sec) == false || sec.Exists("Package") == false)
+	    {
+	       RenameOnError(InvalidFormat);
+	       return;
+	    }
          }
       }
        
@@ -1751,9 +1768,8 @@ pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
 
    // Select a source
    if (QueueNext() == false && _error->PendingError() == false)
-      _error->Error(_("I wasn't able to locate a file for the %s package. "
-		    "This might mean you need to manually fix this package."),
-		    Version.ParentPkg().Name());
+      _error->Error(_("Can't find a source to download version '%s' of '%s'"),
+		    Version.VerStr(), Version.ParentPkg().FullName(false).c_str());
 }
 									/*}}}*/
 // AcqArchive::QueueNext - Queue the next file source			/*{{{*/
@@ -1907,18 +1923,14 @@ void pkgAcqArchive::Done(string Message,unsigned long long Size,string CalcHash,
    // Check the size
    if (Size != Version->Size)
    {
-      Status = StatError;
-      ErrorText = _("Size mismatch");
+      RenameOnError(SizeMismatch);
       return;
    }
    
    // Check the hash
    if(ExpectedHash.toStr() != CalcHash)
    {
-      Status = StatError;
-      ErrorText = _("Hash Sum mismatch");
-      if(FileExists(DestFile))
-	 Rename(DestFile,DestFile + ".FAILED");
+      RenameOnError(HashSumMismatch);
       return;
    }
 
@@ -2058,9 +2070,7 @@ void pkgAcqFile::Done(string Message,unsigned long long Size,string CalcHash,
    // Check the hash
    if(!ExpectedHash.empty() && ExpectedHash.toStr() != CalcHash)
    {
-      Status = StatError;
-      ErrorText = _("Hash Sum mismatch");
-      Rename(DestFile,DestFile + ".FAILED");
+      RenameOnError(HashSumMismatch);
       return;
    }
    
diff --git a/apt-pkg/acquire-item.h b/apt-pkg/acquire-item.h
index 10c855e63..6b4f73708 100644
--- a/apt-pkg/acquire-item.h
+++ b/apt-pkg/acquire-item.h
@@ -83,7 +83,7 @@ class pkgAcquire::Item : public WeakPointable
     *  overwritten.
     */
    void Rename(std::string From,std::string To);
-   
+
    public:
 
    /** \brief The current status of this item. */
@@ -281,6 +281,21 @@ class pkgAcquire::Item : public WeakPointable
     *  pkgAcquire::Remove.
     */
    virtual ~Item();
+
+   protected:
+
+   enum RenameOnErrorState {
+      HashSumMismatch,
+      SizeMismatch,
+      InvalidFormat
+   };
+
+   /** \brief Rename failed file and set error
+    *
+    * \param state respresenting the error we encountered
+    * \param errorMsg a message describing the error
+    */
+   bool RenameOnError(RenameOnErrorState const state);
 };
 									/*}}}*/
 /** \brief Information about an index patch (aka diff). */		/*{{{*/
@@ -982,7 +997,7 @@ class pkgAcqArchive : public pkgAcquire::Item
     *
     *  \param Version The package version to download.
     *
-    *  \param StoreFilename A location in which the actual filename of
+    *  \param[out] StoreFilename A location in which the actual filename of
     *  the package should be stored.  It will be set to a guessed
     *  basename in the constructor, and filled in with a fully
     *  qualified filename once the download finishes.
diff --git a/apt-pkg/aptconfiguration.cc b/apt-pkg/aptconfiguration.cc
index 4f9b84e00..115d11616 100644
--- a/apt-pkg/aptconfiguration.cc
+++ b/apt-pkg/aptconfiguration.cc
@@ -453,7 +453,7 @@ void Configuration::setDefaultConfigurationForCompressors() {
 	_config->CndSet("Dir::Bin::bzip2", "/bin/bzip2");
 	_config->CndSet("Dir::Bin::xz", "/usr/bin/xz");
 	if (FileExists(_config->FindFile("Dir::Bin::xz")) == true) {
-		_config->Clear("Dir::Bin::lzma");
+		_config->Set("Dir::Bin::lzma", _config->FindFile("Dir::Bin::xz"));
 		_config->Set("APT::Compressor::lzma::Binary", "xz");
 		if (_config->Exists("APT::Compressor::lzma::CompressArg") == false) {
 			_config->Set("APT::Compressor::lzma::CompressArg::", "--format=lzma");
diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index 978a893f7..a06789cdf 100644
--- a/apt-pkg/depcache.cc
+++ b/apt-pkg/depcache.cc
@@ -896,6 +896,7 @@ char const* PrintMode(char const mode)
 	 case pkgDepCache::ModeInstall: return "Install";
 	 case pkgDepCache::ModeKeep: return "Keep";
 	 case pkgDepCache::ModeDelete: return "Delete";
+	 case pkgDepCache::ModeGarbage: return "Garbage";
 	 default: return "UNKNOWN";
 	 }
 }
@@ -1726,8 +1727,6 @@ bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
    follow_recommends = MarkFollowsRecommends();
    follow_suggests   = MarkFollowsSuggests();
 
-
-
    // do the mark part, this is the core bit of the algorithm
    for(PkgIterator p = PkgBegin(); !p.end(); ++p)
    {
@@ -1738,7 +1737,9 @@ bool pkgDepCache::MarkRequired(InRootSetFunc &userFunc)
 	  // be nice even then a required package violates the policy (#583517)
 	  // and do the full mark process also for required packages
 	  (p.CurrentVer().end() != true &&
-	   p.CurrentVer()->Priority == pkgCache::State::Required))
+	   p.CurrentVer()->Priority == pkgCache::State::Required) ||
+	  // packages which can't be changed (like holds) can't be garbage
+	  (IsModeChangeOk(ModeGarbage, p, 0, false) == false))
       {
 	 // the package is installed (and set to keep)
 	 if(PkgState[p->ID].Keep() && !p.CurrentVer().end())
diff --git a/apt-pkg/depcache.h b/apt-pkg/depcache.h
index d9c95349b..61c9aa559 100644
--- a/apt-pkg/depcache.h
+++ b/apt-pkg/depcache.h
@@ -128,7 +128,7 @@ class pkgDepCache : protected pkgCache::Namespace
    enum InternalFlags {AutoKept = (1 << 0), Purge = (1 << 1), ReInstall = (1 << 2), Protected = (1 << 3)};
       
    enum VersionTypes {NowVersion, InstallVersion, CandidateVersion};
-   enum ModeList {ModeDelete = 0, ModeKeep = 1, ModeInstall = 2};
+   enum ModeList {ModeDelete = 0, ModeKeep = 1, ModeInstall = 2, ModeGarbage = 3};
 
    /** \brief Represents an active action group.
     *