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Re: [Libguestfs] [PATCH v2] v2v: allow configurable location for virtio drivers



On Tue, Mar 31, 2015 at 04:26:38PM +0300, Roman Kagan wrote:
> Make the location of the Windows virtio drivers overridable with the
> environment variable VIRTIO_WIN_DIR, in the same vein as is done for
> virt-tools.
> 
> Signed-off-by: Roman Kagan <rkagan parallels com>
> ---
> changes from v1:
>  - document the new environment variable
> 
>  v2v/convert_windows.ml |  4 +++-
>  v2v/virt-v2v.pod       | 10 ++++++++--
>  2 files changed, 11 insertions(+), 3 deletions(-)
> 
> diff --git a/v2v/convert_windows.ml b/v2v/convert_windows.ml
> index 0cd818a..e966341 100644
> --- a/v2v/convert_windows.ml
> +++ b/v2v/convert_windows.ml
> @@ -47,7 +47,9 @@ let convert ~verbose ~keep_serial_console (g : G.guestfs) inspect source =
>      try Sys.getenv "VIRT_TOOLS_DATA_DIR"
>      with Not_found -> Config.datadir // "virt-tools" in
>  
> -  let virtio_win_dir = "/usr/share/virtio-win" in
> +  let virtio_win_dir =
> +    try Sys.getenv "VIRTIO_WIN_DIR"
> +    with Not_found -> Config.datadir // "virtio-win" in
>  
>    (* Check if RHEV-APT exists.  This is optional. *)
>    let rhev_apt_exe = virt_tools_data_dir // "rhev-apt.exe" in
> diff --git a/v2v/virt-v2v.pod b/v2v/virt-v2v.pod
> index 7b6419e..4f7088c 100644
> --- a/v2v/virt-v2v.pod
> +++ b/v2v/virt-v2v.pod
> @@ -720,8 +720,9 @@ below.
>   
>   OpenSUSE 10    kernel >= 2.6.25.5-1.1
>  
> - Windows        Drivers are installed from /usr/share/virtio-win
> -                if present
> + Windows        Drivers are installed from the directory pointed to by
> +                "VIRTIO_WIN_DIR" environment variable
> +                (/usr/share/virtio-win by default) if present
>  
>  =head1 RHEL 4
>  
> @@ -1500,6 +1501,11 @@ not distributed with virt-v2v.
>  
>  =back
>  
> +=item C<VIRTIO_WIN_DIR>
> +
> +This is where VirtIO drivers for Windows are searched for
> +(F</usr/share/virtio-win> if unset).  See L<ENABLING VIRTIO>.
> +
>  =back
>  
>  For other environment variables, see L<guestfs(3)/ENVIRONMENT VARIABLES>.

I didn't know POD had a F<> formatter.  Now I have to go and
change everything else :-(

Thanks - ACKed and pushed.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines.  Supports shell scripting,
bindings from many languages.  http://libguestfs.org


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