[libvirt] [PATCH 1/3] tools: read default connection uri from env later

Erik Skultety eskultet at redhat.com
Wed Apr 6 10:56:29 UTC 2016


On 06/04/16 10:51, Ján Tomko wrote:
> Postpone filling out the default connection in ctl->connname
> after calling virshInit.
> 
> This allows printing help without a connection to the daemon.
> ---
>  tools/virsh.c      | 6 +++---
>  tools/virt-admin.c | 6 +++---
>  2 files changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/tools/virsh.c b/tools/virsh.c
> index 57b4ff3..8c616d6 100644
> --- a/tools/virsh.c
> +++ b/tools/virsh.c
> @@ -968,9 +968,6 @@ main(int argc, char **argv)
>  
>      virFileActivateDirOverride(argv[0]);
>  
> -    if ((defaultConn = virGetEnvBlockSUID("VIRSH_DEFAULT_CONNECT_URI")))
> -        ctl->connname = vshStrdup(ctl, defaultConn);
> -
>      if (!vshInit(ctl, cmdGroups, NULL))
>          exit(EXIT_FAILURE);
>  
> @@ -980,6 +977,9 @@ main(int argc, char **argv)
>          exit(EXIT_FAILURE);
>      }
>  
> +    if ((defaultConn = virGetEnvBlockSUID("VIRSH_DEFAULT_CONNECT_URI")))
> +        ctl->connname = vshStrdup(ctl, defaultConn);
> +
>      if (!ctl->imode) {
>          ret = vshCommandRun(ctl, ctl->cmd);
>      } else {

^^This one's correct.

> diff --git a/tools/virt-admin.c b/tools/virt-admin.c
> index edb8690..da847d2 100644
> --- a/tools/virt-admin.c
> +++ b/tools/virt-admin.c
> @@ -719,9 +719,6 @@ main(int argc, char **argv)
>  
>      virFileActivateDirOverride(argv[0]);
>  
> -    if ((defaultConn = virGetEnvBlockSUID("LIBVIRT_DEFAULT_ADMIN_URI")))
> -        ctl->connname = vshStrdup(ctl, defaultConn);
> -
>      if (!vshInit(ctl, cmdGroups, NULL))
>          exit(EXIT_FAILURE);
>  
> @@ -731,6 +728,9 @@ main(int argc, char **argv)
>          exit(EXIT_FAILURE);
>      }
>  
> +    if ((defaultConn = virGetEnvBlockSUID("LIBVIRT_DEFAULT_ADMIN_URI")))
> +        ctl->connname = vshStrdup(ctl, defaultConn);
> +
>      if (!ctl->imode) {
>          ret = vshCommandRun(ctl, ctl->cmd);
>      } else {
> 

^^But I don't think you need this one here, because unlike
VIRSH_DEFAULT_CONNECT_URI which is deprecated by LIBVIRT_DEFAULT_URI and
we can't drop it, LIBVIRT_DEFAULT_ADMIN_URI isn't and from my
perspective the only way for this to not work would be a new virt-admin
client and old libvirt-admin library which would not support NULL as
connection name which is impossible since none of those were released
yet, so in conclusion I don't think that getting the default conn in
virt-admin is necessary at all and could be removed.

ACK to the first part (for virsh) of the patch.

Erik




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