* ftparchive/multicompress.cc, apt-inst/deb/debfile.cc:

  - support xz compressor to create xz-compressed Indexes and be able
    to open data.tar.xz files
* ftparchive/writer.cc:
  - include xz-compressed Packages and Sources files in Release file

apt-inst/deb/debfile.cc

@@ -46,7 +46,9 @@ debDebFile::debDebFile(FileFd &File) : File(File), AR(File)
 
    if (!CheckMember("data.tar.gz") &&
        !CheckMember("data.tar.bz2") &&
-       !CheckMember("data.tar.lzma")) {
+       !CheckMember("data.tar.lzma") &&
+       !CheckMember("data.tar.xz")) {
+      // FIXME: add data.tar.xz here - adding it now would require a Translation round for a very small gain
       _error->Error(_("This is not a valid DEB archive, it has no '%s', '%s' or '%s' member"), "data.tar.gz", "data.tar.bz2", "data.tar.lzma");
       return;
    }
@@ -136,6 +138,10 @@ bool debDebFile::ExtractArchive(pkgDirStream &Stream)
       Member = AR.FindMember("data.tar.lzma");
       Compressor = "lzma";
    }
+   if (Member == 0) {
+      Member = AR.FindMember("data.tar.xz");
+      Compressor = "xz";
+   }
    if (Member == 0)
       return _error->Error(_("Internal error, could not locate member"));   
    if (File.Seek(Member->Start) == false)

debian/changelog

@@ -6,11 +6,15 @@ apt (0.8.11.6) UNRELEASED; urgency=low
   * Complete French manpage translation
 
   [ David Kalnischkies ]
+  * ftparchive/multicompress.cc, apt-inst/deb/debfile.cc:
+    - support xz compressor to create xz-compressed Indexes and be able
+      to open data.tar.xz files
   * ftparchive/writer.cc:
     - ensure that Date and Valid-Until time strings are not localised
     - add options to disable specific checksums for Indexes
+    - include xz-compressed Packages and Sources files in Release file
 
- -- David Kalnischkies <kalnischkies@gmail.com>  Tue, 22 Feb 2011 14:48:21 +0100
+ -- David Kalnischkies <kalnischkies@gmail.com>  Tue, 22 Feb 2011 14:59:51 +0100
 
 apt (0.8.11.5) unstable; urgency=low
 

ftparchive/contents.cc

@@ -317,9 +317,13 @@ bool ContentsExtract::Read(debDebFile &Deb)
       Member = Deb.GotoMember("data.tar.lzma");
       Compressor = "lzma";
    }
+   if (Member == 0) {
+      Member = Deb.GotoMember("data.tar.xz");
+      Compressor = "xz";
+   }
    if (Member == 0) {
       _error->Error(_("Internal error, could not locate member %s"),
-		    "data.tar.{gz,bz2,lzma}");
+		    "data.tar.{gz,bz2,lzma,xz}");
       return false;
    }
       

ftparchive/multicompress.cc

@@ -35,6 +35,7 @@ const MultiCompress::CompType MultiCompress::Compressors[] =
        {"gzip",".gz","gzip","-9n","-d",2},
        {"bzip2",".bz2","bzip2","-9","-d",3},
        {"lzma",".lzma","lzma","-9","-d",4},
+       {"xz",".xz","xz","-6","-d",5},
        {}};
 
 // MultiCompress::MultiCompress - Constructor				/*{{{*/

ftparchive/writer.cc

@@ -930,10 +930,12 @@ ReleaseWriter::ReleaseWriter(string const &DB)
       AddPattern("Packages.gz");
       AddPattern("Packages.bz2");
       AddPattern("Packages.lzma");
+      AddPattern("Packages.xz");
       AddPattern("Sources");
       AddPattern("Sources.gz");
       AddPattern("Sources.bz2");
       AddPattern("Sources.lzma");
+      AddPattern("Sources.xz");
       AddPattern("Release");
       AddPattern("Index");
       AddPattern("md5sum.txt");

test/integration/framework

@@ -328,10 +328,10 @@ createaptftparchiveconfig() {
 	echo -n '";
 };
 Default {
-	Packages::Compress ". gzip bzip2 lzma";
-	Sources::Compress ". gzip bzip2 lzma";
-	Contents::Compress ". gzip bzip2 lzma";
-	Translation::Compress ". gzip bzip2 lzma";
+	Packages::Compress ". gzip bzip2 lzma xz";
+	Sources::Compress ". gzip bzip2 lzma xz";
+	Contents::Compress ". gzip bzip2 lzma xz";
+	Translation::Compress ". gzip bzip2 lzma xz";
 	LongDescription "false";
 };
 TreeDefault {
@@ -438,6 +438,7 @@ buildaptarchivefromfiles() {
 		cat ${line} | gzip > ${line}.gz
 		cat ${line} | bzip2 > ${line}.bz2
 		cat ${line} | lzma > ${line}.lzma
+		cat ${line} | xz > ${line}.xz
 		msgdone "info"
 	done
 	generatereleasefiles