Re: [PATCH] xl: rename "list-vm" command to "vm-list"

[Ian Campbell <Ian.Campbell@citrix.com>]

On Thu, 2012-06-28 at 07:46 +0100, Matt Wilson wrote:
> All of the other "list" verbs are of the form "$noun-list". For
> example: "pci-list", "vcpu-list", "network-list", "block-list", etc.
> Additionally, many people have well trained muscle memory from years
> of typing "xm li". "xl li" was ambiguous due to "xl list-vm" resulted
> in "command not implemented".

Which did xm have list-vm or vm-list (or neither?) 

Aside: I'd love for someone to implement (for 4.3) a better error
message than "command not implemented". At the least printing out the
list of clashing options, or even git style "Did you mean" when you make
a typo.

> 
> Signed-off-by: Matt Wilson <msw@amazon.com>
> 
> diff -r 32034d1914a6 -r 34e47ba2612e tools/libxl/xl.h
> --- a/tools/libxl/xl.h	Thu Jun 07 19:46:57 2012 +0100
> +++ b/tools/libxl/xl.h	Thu Jun 28 06:34:26 2012 +0000
> @@ -54,7 +54,7 @@ int main_destroy(int argc, char **argv);
>  int main_shutdown(int argc, char **argv);
>  int main_reboot(int argc, char **argv);
>  int main_list(int argc, char **argv);
> -int main_list_vm(int argc, char **argv);
> +int main_vm_list(int argc, char **argv);
>  int main_create(int argc, char **argv);
>  int main_config_update(int argc, char **argv);
>  int main_button_press(int argc, char **argv);
> diff -r 32034d1914a6 -r 34e47ba2612e tools/libxl/xl_cmdimpl.c
> --- a/tools/libxl/xl_cmdimpl.c	Thu Jun 07 19:46:57 2012 +0100
> +++ b/tools/libxl/xl_cmdimpl.c	Thu Jun 28 06:34:26 2012 +0000
> @@ -3623,11 +3623,11 @@ int main_list(int argc, char **argv)
>      return 0;
>  }
>  
> -int main_list_vm(int argc, char **argv)
> +int main_vm_list(int argc, char **argv)
>  {
>      int opt;
>  
> -    if ((opt = def_getopt(argc, argv, "", "list-vm", 0)) != -1)
> +    if ((opt = def_getopt(argc, argv, "", "vm-list", 0)) != -1)
>          return opt;
>  
>      list_vm();
> diff -r 32034d1914a6 -r 34e47ba2612e tools/libxl/xl_cmdtable.c
> --- a/tools/libxl/xl_cmdtable.c	Thu Jun 07 19:46:57 2012 +0100
> +++ b/tools/libxl/xl_cmdtable.c	Thu Jun 28 06:34:26 2012 +0000
> @@ -214,9 +214,9 @@ struct cmd_spec cmd_table[] = {
>        "Set the number of active VCPUs allowed for the domain",
>        "<Domain> <vCPUs>",
>      },
> -    { "list-vm",
> -      &main_list_vm, 0, 0,
> -      "List the VMs,without DOM0",
> +    { "vm-list",
> +      &main_vm_list, 0, 0,
> +      "List the VMs, without DOM0",
>        "",
>      },
>      { "info",