[pbs-devel] [PATCH proxmox-backup 1/2] api2/status: fix estimation bug

[Dominik Csapak]

On 7/20/20 11:36 AM, Thomas Lamprecht wrote:
> On 17.07.20 15:39, Dominik Csapak wrote:
>> when a datastore has enough data to calculate the estimated full date,
>> but always has exactly the same usage, the factor b of the regression
>> is '0'
>>
>> return 0 for that case so that the gui can show 'never' instead of
>> 'not enough data'
>>
>> Signed-off-by: Dominik Csapak <d.csapak at proxmox.com>
>> ---
>>   src/api2/status.rs | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/src/api2/status.rs b/src/api2/status.rs
>> index 34e0505..4f98543 100644
>> --- a/src/api2/status.rs
>> +++ b/src/api2/status.rs
>> @@ -161,6 +161,8 @@ fn datastore_status(
>>                           if b != 0.0 {
>>                               let estimate = (1.0 - a) / b;
>>                               entry["estimated-full-date"] = Value::from(estimate.floor() as u64);
>> +                        } else {
>> +                            entry["estimated-full-date"] = Value::from(0);
>>                           }
>>                       }
>>                   }
>>
> 
> nit and asking mostly out of interest, but wouldn't it be more "idomatic rust" if this
> was written like:
> 
> entry["estimated-full-date"] = if b != 0.0 {
>      let estimate = (1.0 - a) / b;
>      Value::from(estimate.floor() as u64)
> } else {
>      Value::from(0)
> }
> 
> anyway, looks OK to me from a quick look.
> 

yes, probably... i personally find those multiline let foo = if {..} 
statements a bit harder to read...


should i send a v2?