[Libguestfs] [PATCH] virt-v2v: Support for ova exported from AWS

[Richard W.M. Jones]

On Tue, Sep 06, 2016 at 01:52:29PM +0300, Shahar Havivi wrote:
> 1. AWS the name tag is not mandatory - using default as a name
> 2. AWD doesn't prefix 'ovf:' as prefix to disk path
> 
> There is an open bug for oVirt:
> https://bugzilla.redhat.com/show_bug.cgi?id=1371843
> 
> Signed-off-by: Shahar Havivi <shaharh at redhat.com>
>
>  v2v/input_ova.ml | 8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/v2v/input_ova.ml b/v2v/input_ova.ml
> index d640d4a..46b6bb6 100644
> --- a/v2v/input_ova.ml
> +++ b/v2v/input_ova.ml
> @@ -202,9 +202,7 @@ object
>  
>      (* Search for vm name. *)
>      let name =
> -      xpath_to_string "/ovf:Envelope/ovf:VirtualSystem/ovf:Name/text()" "" in
> -    if name = "" then
> -      error (f_"could not parse ovf:Name from OVF document");
> +      xpath_to_string "/ovf:Envelope/ovf:VirtualSystem/ovf:Name/text()" "default" in
>
>      (* Search for memory. *)
>      let memory = xpath_to_int "/ovf:Envelope/ovf:VirtualSystem/ovf:VirtualHardwareSection/ovf:Item[rasd:ResourceType/text()=4]/rasd:VirtualQuantity/text()" (1024 * 1024) in
> @@ -263,10 +261,10 @@ object
>  
>          Xml.xpathctx_set_current_context xpathctx n;
>          let file_id = xpath_to_string "rasd:HostResource/text()" "" in
> -        let rex = Str.regexp "^ovf:/disk/\\(.*\\)" in
> +        let rex = Str.regexp "^\\(ovf:\\)?/disk/\\(.*\\)" in
>          if Str.string_match rex file_id 0 then (
>            (* Chase the references through to the actual file name. *)
> -          let file_id = Str.matched_group 1 file_id in
> +          let file_id = Str.matched_group 2 file_id in
>            let expr = sprintf "/ovf:Envelope/ovf:DiskSection/ovf:Disk[@ovf:diskId='%s']/@ovf:fileRef" file_id in
>            let file_ref = xpath_to_string expr "" in
>            if file_ref == "" then error (f_"error parsing disk fileRef");

The patch looks generally OK, but you need to post an updated
version that applies cleanly to current git head.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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