Re: [Qemu-devel] [PATCH v2 11/12] vm-snapshot-save: add force parameter

[Eric Blake]

On 03/22/2013 07:16 AM, Pavel Hrdina wrote:
> HMP command "savevm" now takes extra optional force parameter to specify 
> whether
> replace existing snapshot or not.
> 
> QMP command "vm-snapshot-save" has also extra optional force parameter and
> name parameter isn't optional anymore.

Again, my question from 7/12 - why not rebase this series to implement
QMP correctly from the getgo, and have this patch be JUST an HMP
addition to expose the new QMP capability?

> 
> Signed-off-by: Pavel Hrdina <address@hidden>
> ---
>  hmp-commands.hx  | 15 ++++++++-------
>  hmp.c            |  3 ++-
>  qapi-schema.json |  7 +++++--
>  qmp-commands.hx  | 16 ++++++++++------
>  savevm.c         | 25 ++++++++++++++++---------
>  5 files changed, 41 insertions(+), 25 deletions(-)
> 
> diff --git a/hmp-commands.hx b/hmp-commands.hx
> index 3c1cb05..bfe0645 100644
> --- a/hmp-commands.hx
> +++ b/hmp-commands.hx
> @@ -307,18 +307,19 @@ ETEXI
>  
>      {
>          .name       = "savevm",
> -        .args_type  = "name:s?",
> -        .params     = "[tag|id]",
> -        .help       = "save a VM snapshot. If no tag or id are provided, a 
> new snapshot is created",
> +        .args_type  = "force:-f,name:s?",
> +        .params     = "[-f] [tag|id]",
> +        .help       = "save a VM snapshot. To replace existing snapshot use 
> force flag.",

Not an error message, so I'm not duplicating myself :)
Prevailing convention seems to be omitting trailing '.' in .help messages.

>          .mhandler.cmd = hmp_vm_snapshot_save,
>      },
>  
>  STEXI
> address@hidden savevm address@hidden|@var{id}]
> address@hidden savevm address@hidden @var{tag}|@var{id}
>  @findex savevm
> -Create a snapshot of the whole virtual machine. If @var{tag} is
> -provided, it is used as human readable identifier. If there is already
> -a snapshot with the same @var{tag} or @var{id}, it is replaced. More info at
> +Create a snapshot of the whole virtual machine. Parameter "name" is optional.
> +If @var{tag} is provided, it is used as human readable identifier. If there 
> is
> +already a snapshot with the same @var{tag} or @var{id}, @var{-f} flag needs 
> to
> +be specified. More info at @ref{vm_snapshots}.
>  @ref{vm_snapshots}.

@ref{vm_snapshots} now appears twice in the output.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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