Re: [pbs-devel] [PATCH proxmox-backup v2] fix #4343: updated `view_task_result` to bail on task failure

[Thomas Lamprecht <t.lamprecht@proxmox.com>]

On 24/08/2023 14:45, Gabriel Goller wrote:
> Now we make an additional request on `api2/json/.../tasks/{upid}/status` to
> get the `exitstatus` of the task. This allows us to `bail` and thus
> get a non-zero exit code in the cli.
> 

seems OK now, but.

> Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
> ---
> 
> changes v1:
>  - check on each iteration if the task is finished, then bubble up the 
>    original error of the task. This was inpractical though, so we print
>    the error and return a generic error.
> 
>  pbs-client/src/task_log.rs | 21 ++++++++++++++++++---
>  1 file changed, 18 insertions(+), 3 deletions(-)
> 
> diff --git a/pbs-client/src/task_log.rs b/pbs-client/src/task_log.rs
> index 0bbb928d..a406a7a4 100644
> --- a/pbs-client/src/task_log.rs
> +++ b/pbs-client/src/task_log.rs
> @@ -76,9 +76,8 @@ pub async fn display_task_log(
>                  if n != start {
>                      bail!("got wrong line number in response data ({n} != {start}");
>                  }
> -                if strip_date && t.len() > 27 && &t[25..27] == ": " {
> -                    let line = &t[27..];
> -                    println!("{line}");
> +                if strip_date {
> +                    println!("{}", try_strip_date(t));

I don't see how adding the new helper below and using it here is relevant to
what you want to accomplish as of your commit message?

Please but such unrelated clean-ups in a separate patch.

>                  } else {
>                      println!("{t}");
>                  }
> @@ -96,6 +95,14 @@ pub async fn display_task_log(
>              }
>          }
>  
> +        let status_path = format!("api2/json/nodes/localhost/tasks/{upid_encoded}/status");
> +        let status_result = client.get(&status_path, None).await?;
> +        if status_result["data"]["status"].as_str() == Some("stopped")
> +            && status_result["data"]["exitstatus"].as_str() != Some("OK")
> +        {
> +            bail!("task failed");
> +        }
> +
>          Ok(())
>      };
>  
> @@ -127,3 +134,11 @@ pub async fn view_task_result(
>  
>      Ok(())
>  }
> +
> +fn try_strip_date(log_msg: &str) -> &str {
> +    if log_msg.len() > 27 && &log_msg[25..27] == ": " {
> +        &log_msg[27..]
> +    } else {
> +        log_msg
> +    }
> +}