RELEASE EXPERIMENT: more compression, .xz variant

[exim.git] / release-process / scripts / mk_exim_release

diff --git a/release-process/scripts/mk_exim_release b/release-process/scripts/mk_exim_release
index 17b034e4eba356972f47d256f0e728089bc5ca2e..95f9f905023672b0f99e36ed1f135880bdfe9664 100755 (executable)
--- a/release-process/scripts/mk_exim_release
+++ b/release-process/scripts/mk_exim_release
@@ -235,6 +235,7 @@ sub move_text_docs_into_pkg {
 
     # move generated documents from docbook stuff
     foreach my $file (qw/exim.8 spec.txt filter.txt/) {
+        die "Empty file \"$file\"\n" if -z File::Spec->catfile( $old_docdir, $file );
         move( File::Spec->catfile( $old_docdir, $file ), File::Spec->catfile( $new_docdir, $file ) );
     }
 
@@ -374,6 +375,10 @@ sub create_tar_files {
             print "Creating: ${pkgs}/${dirname}.tar.lz\n" if ($verbose || $debug);
             system("$tar cf  ${pkgs}/${dirname}.tar.lz  --lzip  -C ${pkgdirs} ${dirname}")
         }
+        if ($context->{compressors}{xz}) {
+            print "Creating: ${pkgs}/${dirname}.tar.xz\n" if ($verbose || $debug);
+            system("$tar cf  ${pkgs}/${dirname}.tar.xz  --xz    -C ${pkgdirs} ${dirname}")
+        }
     }
 }
 
@@ -393,6 +398,7 @@ MAIN: {
         compressors => {
                 gzip    => 1,
                 bzip2   => 1,
+                xz      => 1,
                 lzip    => 0,
         },
         build_docs   => 1,
@@ -401,6 +407,13 @@ MAIN: {
     my $delete;
     my $cleanup = 1;
     ##$ENV{'PATH'} = '/opt/local/bin:' . $ENV{'PATH'};
+    # We are creating files for mass distribution, so work harder to make smaller files.
+    $ENV{'GZIP'} = '-9';
+    $ENV{'BZIP2'} = '-9';
+    # xz documents minimum file sizes for levels higher than -6 to be useful and each
+    # requires more RAM on the decompressing system.  Exim tarball currently 24MiB so
+    # using -8.
+    $ENV{'XZ_DEFAULTS'} = '-8';
 
     GetOptions(
         'directory=s'   => \$context->{directory},