Re: [Qemu-devel] [PATCH v3 2/2] -help lists only -help-* commands

[Eric Blake]

On 08/27/2015 04:22 PM, Laurent Vivier wrote:
> A slight change of behavior:
> 
>     -help-all displays all helps (like -help/-h before)
>     -help/-h lists only the available help commands

I like the change. However, I think that it is missing the overall
summary; bare help should still include the lead-in lines that mention
usage; I'm less concerned if the version line is present (we have
--version for that), but it may be easier to include it too.  That is,
this part from pre-patch should probably still show:

$ ./x86_64-softmmu/qemu-system-x86_64 --help
QEMU emulator version 2.4.50, Copyright (c) 2003-2008 Fabrice Bellard
usage: qemu-system-x86_64 [options] [disk_image]

'disk_image' is a raw hard disk image for IDE hard disk 0

Help/version options:
...


> 
> Signed-off-by: Laurent Vivier <address@hidden>
> ---
> v3: add this patch to add an help section, -help displays only this section
>  qemu-options.hx | 29 +++++++++++++++++++++++++----
>  vl.c            | 12 +++++++++++-
>  2 files changed, 36 insertions(+), 5 deletions(-)
> 

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

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