From 7c0cab87133acd7df0084f495b3d4f52fbf2dc9b Mon Sep 17 00:00:00 2001
From: Martin Whitaker <mageia@martin-whitaker.me.uk>
Date: Sun, 8 Apr 2018 08:53:35 +0100
Subject: Remove obsolute support for different mount and loopback options.

The dracut-generated initrd doesn't support them.
---
 lib/MGA/DrakISO/BuildLoop.pm | 75 ++++++++++++++++++--------------------------
 1 file changed, 30 insertions(+), 45 deletions(-)

(limited to 'lib/MGA/DrakISO/BuildLoop.pm')

diff --git a/lib/MGA/DrakISO/BuildLoop.pm b/lib/MGA/DrakISO/BuildLoop.pm
index 8a83e03..ebaef11 100644
--- a/lib/MGA/DrakISO/BuildLoop.pm
+++ b/lib/MGA/DrakISO/BuildLoop.pm
@@ -19,8 +19,8 @@
 
 # SYNOPSIS
 # --------
-# This package provides a function to build the compressed images that will
-# be mounted as loopback filesystems when booting a Live system.
+# This package provides a function to build the compressed image that will
+# be mounted as a loopback filesystem when booting a Live system.
 
 package MGA::DrakISO::BuildLoop;
 
@@ -31,17 +31,16 @@ use MDK::Common;
 use File::Temp qw(tmpnam);
 
 use MGA::DrakISO::LiveBuild;
-use MGA::DrakISO::Loopback;
 use MGA::DrakISO::Utils;
 
 use Exporter;
 our @ISA = qw(Exporter);
-our @EXPORT = qw(build_live_loopback_files list_loopback_modules);
+our @EXPORT = qw(build_live_loopback_file);
 
-# This is the top-level function called to build the loopback images. The Live
+# This is the top-level function called to build the loopback image. The Live
 # root filesystem must have been prepared before calling this function.
 #
-sub build_live_loopback_files {
+sub build_live_loopback_file {
     my ($build) = @_;
 
     my $root = $build->get_live_root;
@@ -49,22 +48,32 @@ sub build_live_loopback_files {
     # make sure no external filesystems are mounted before creating the loopback
     umount_all_in_root($root);
 
+    my $total = directory_usage($root);
+    print "Have to process " . int($total/1000000) . " MB\n" if $::verbose;
+
+    my $dest = $build->get_build_dir('loopbacks') . '/distrib.sqfs';
+    mkdir_p(dirname($dest));
+
+    my $exclude_list = tmpnam();
     my @excluded_files = expand_file_list($build, @{$build->{loopbacks}{exclude} || []});
-    my @modules_files = expand_file_list($build, @{$build->{loopbacks}{modules} || []});
-
-    foreach (grep { exists $loop_types{$_->{type}}{build} } @{$build->{mount}{dirs} || []}) {
-        local $_->{exclude} = [ @excluded_files, @modules_files ];
-        $loop_types{$_->{type}}{build}->($build, $_);
-    }
-
-    foreach my $module (list_loopback_modules($build)) {
-        my $copy_tree = $root . "/tmp/draklive/loop/$module->{name}";
-        run_as_root('rm', '-rf', $copy_tree);
-        hardlink_filtered($root, $copy_tree, $module->{files});
-        my $loop = $loop_types{$module->{type}};
-        $loop->{build}->($build, { path => "/modules/$module->{name}", root => $copy_tree, exclude => \@excluded_files });
-        run_as_root('rm', '-rf', $copy_tree);
-    }
+    output_p($exclude_list, map { $root . "$_\n" }  grep { run_as_root('test', '-e', $root . $_) } @excluded_files);
+
+    my $sort = $build->{settings}{config_root} . '/config/distrib.sort';
+    run_as_root(join(' ',
+         'mksquashfs',
+         $root, $dest,
+         '-noappend',
+         '-comp', 'xz',
+         '-b', '1048576',
+         '-ef', $exclude_list,
+         if_(-f $sort, '-sort', $sort),
+         if_($::verbose > 2, '-info', '-progress'),
+         if_($::verbose < 2, '-no-progress'),
+         # due to lack of a -quiet option
+         if_($::verbose < 2, '> /dev/null'),
+    )) or die "ERROR: unable to run mksquashfs\n";
+
+    unlink $exclude_list;
 }
 
 sub expand_file_list {
@@ -76,28 +85,4 @@ sub expand_file_list {
     } @files;
 }
 
-#- hardlink recursively file list to a directory
-sub hardlink_filtered {
-    my ($src, $dest, $files) = @_;
-    mkdir_p($dest);
-    my $list_file = tmpnam();
-    output_p($list_file, map { "$_\n" } grep { -e $src . $_ } @$files);
-    #- cpio -pldm won't copy recursively, use rsync -r instead
-    run_as_root('rsync', '-ar', '--files-from=' . $list_file, '--link-dest=' . $src, $src, $dest);
-    unlink $list_file;
-}
-
-sub list_loopback_modules {
-    my ($build) = @_;
-    map {
-        my $l = $_;
-        map {
-            my $list = $_;
-            my $name = basename($list);
-            $name =~ s/\.[^.]+$//;
-            { type => $l->{type}, name => $name, files => [ expand_file_list($build, { source => $list }) ] };
-        } glob(($_->{rooted} && $build->get_live_root) . $_->{source});
-    } @{$build->{loopbacks}{modules}};
-}
-
 1;
-- 
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