Re: [PATCH v2 3/3] virsh: pool-list: allow both --uuid and --name in one cmd

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On 01/06/2017 09:42 AM, Chen Hanxiao wrote:
> From: Chen Hanxiao <chenhanxiao@xxxxxxxxx>
> 
> This patch will allow --uuid and --name in one cmd.
> The pool's UUID and name will be printed side by side.
> 
> Signed-off-by: Chen Hanxiao <chenhanxiao@xxxxxxxxx>
> ---
>  tools/virsh-pool.c | 8 +++++++-
>  tools/virsh.pod    | 5 ++++-
>  2 files changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/tools/virsh-pool.c b/tools/virsh-pool.c
> index da43199..ebe1f68 100644
> --- a/tools/virsh-pool.c
> +++ b/tools/virsh-pool.c
> @@ -1320,7 +1320,13 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
>              for (i = 0; i < list->npools; i++) {
>                  char uuid_str[VIR_UUID_STRING_BUFLEN];
>                  virStoragePoolGetUUIDString(list->pools[i], uuid_str);
> -                vshPrint(ctl, "%-36s\n", uuid_str);
> +                if (!name) {
> +                    vshPrint(ctl, "%-36s\n", uuid_str);
> +                } else {
> +                    const char *name_str =
> +                        virStoragePoolGetName(list->pools[i]);
> +                    vshPrint(ctl, "%-36s %-10s\n", uuid_str, name_str);
> +                }

Rather than two separate loops - it should just be one loop and
rather than -10s for name, I kept with the -20s.

See the hunk below which I squashed in before pushing the series.

I've also added a news.xml entry for this

Thanks!

John

>              }
>              ret = true;
>              goto cleanup;
> diff --git a/tools/virsh.pod b/tools/virsh.pod
> index 463762a..553115e 100644
> --- a/tools/virsh.pod
> +++ b/tools/virsh.pod
> @@ -3623,7 +3623,10 @@ In addition, there are several sets of filtering flags. I<--persistent> is to
>  list the persistent pools, I<--transient> is to list the transient pools.
>  I<--autostart> lists the autostarting pools, I<--no-autostart> lists the pools
>  with autostarting disabled. If I<--uuid> is specified only pool's UUIDs are printed.
> -If I<--name> is specified only pool's names are printed.
> +If I<--name> is specified only pool's names are printed. If both I<--name>
> +and I<--uuid> are specified, pool's UUID and names are printed side by side
> +without any header. Options I<--uuid> and I<--name> are mutually exclusive
> +if option I<--details> is specified.
>  
>  You may also want to list pools with specified types using I<type>, the
>  pool types must be separated by comma, e.g. --type dir,disk. The valid pool
> 

diff --git a/tools/virsh-pool.c b/tools/virsh-pool.c
index 85124e8..7a74ba0 100644
--- a/tools/virsh-pool.c
+++ b/tools/virsh-pool.c
@@ -1316,31 +1316,23 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
 
     /* Output basic info then return if --details option not selected */
     if (!details) {
-        if (uuid) {
+        if (uuid || name) {
             for (i = 0; i < list->npools; i++) {
-                char uuid_str[VIR_UUID_STRING_BUFLEN];
-                virStoragePoolGetUUIDString(list->pools[i], uuid_str);
-                if (!name) {
-                    vshPrint(ctl, "%-36s\n", uuid_str);
-                } else {
+                if (uuid) {
+                    char uuid_str[VIR_UUID_STRING_BUFLEN];
+                    virStoragePoolGetUUIDString(list->pools[i], uuid_str);
+                    vshPrint(ctl, "%-36s%c", uuid_str, name ? ' ': '\n');
+                }
+                if (name) {
                     const char *name_str =
                         virStoragePoolGetName(list->pools[i]);
-                    vshPrint(ctl, "%-36s %-10s\n", uuid_str, name_str);
+                    vshPrint(ctl, "%-20s\n", name_str);
                 }
             }
             ret = true;
             goto cleanup;
         }
 
-        if (name) {
-            for (i = 0; i < list->npools; i++) {
-                const char *name_str = virStoragePoolGetName(list->pools[i]);
-                vshPrint(ctl, "%-20s\n", name_str);
-            }
-            ret = true;
-            goto cleanup;
-        }
-
         /* Output old style header */
         vshPrintExtra(ctl, " %-20s %-10s %-10s\n", _("Name"), _("State"),
                       _("Autostart"));

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