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Re: [Libguestfs] [PATCH] Rely on new augeas lens for modules.conf and conf.modules



On Fri, May 14, 2010 at 02:51:52PM +0100, Matthew Booth wrote:
> We were previously forcing the augeas Modprobe lens to match modules.conf and
> conf.modules. It turns out that the contents of these files are quite different
> to modprobe.conf, requiring a new lens.
> 
> This change keeps the logic which looks for where modules should go, but doesn't
> update the augeas configuration. If there is no augeas lens for
> /etc/modules.conf, any attempt to parse or modify it will fail.
> ---
>  lib/Sys/VirtV2V/GuestOS/RedHat.pm |   20 ++++++++------------
>  1 files changed, 8 insertions(+), 12 deletions(-)
> 
> diff --git a/lib/Sys/VirtV2V/GuestOS/RedHat.pm b/lib/Sys/VirtV2V/GuestOS/RedHat.pm
> index 77f0f3a..1a7afbd 100644
> --- a/lib/Sys/VirtV2V/GuestOS/RedHat.pm
> +++ b/lib/Sys/VirtV2V/GuestOS/RedHat.pm
> @@ -87,6 +87,7 @@ sub new
>      bless($self, $class);
>  
>      $self->_init_selinux();
> +    $self->_init_modules();
>      $self->_init_augeas();
>  
>      return $self;
> @@ -168,10 +169,9 @@ sub _init_selinux
>      $g->touch('/.autorelabel');
>  }
>  
> -sub _init_augeas
> +sub _init_modules
>  {
>      my $self = shift;
> -
>      my $g = $self->{g};
>  
>      # Check how new modules should be configured. Possibilities, in descending
> @@ -185,10 +185,8 @@ sub _init_augeas
>      # discovered method will be chosen
>  
>      # Files which the augeas Modprobe lens doesn't look for by default
> -    my @modprobe_add = ();
>      foreach my $file qw(/etc/conf.modules /etc/modules.conf) {
>          if($g->exists($file)) {
> -            push(@modprobe_add, $file);
>              $self->{modules} = $file;
>          }
>      }
> @@ -205,20 +203,18 @@ sub _init_augeas
>  
>      die(user_message(__"Unable to find any valid modprobe configuration"))
>          unless(defined($self->{modules}));
> +}
> +
> +sub _init_augeas
> +{
> +    my $self = shift;
> +    my $g = $self->{g};
>  
>      # Initialise augeas
>      eval {
>          $g->aug_close();
>          $g->aug_init("/", 1);
>  
> -        # Add files which exist, but the augeas Modprobe lens doesn't look for
> -        # by default
> -        if(scalar(@modprobe_add) > 0) {
> -            foreach (@modprobe_add) {
> -                $g->aug_set("/augeas/load/Modprobe/incl[last()+1]", $_);
> -            }
> -        }
> -
>          # Check if /boot/grub/menu.lst is included by the Grub lens
>          my $found = 0;
>          foreach my $incl ($g->aug_match("/augeas/load/Grub/incl")) {
> -- 
> 1.6.6.1
> 
> _______________________________________________
> Libguestfs mailing list
> Libguestfs redhat com
> https://www.redhat.com/mailman/listinfo/libguestfs

I thought I had ACKed this one before, but in case I didn't, ACK.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://et.redhat.com/~rjones/virt-top


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