Symmetry Investments and the D Language Foundation are Hiring

[drug]

On 9/2/20 1:21 PM, drug wrote:
> On 9/2/20 1:18 PM, drug wrote:
>> it will be seldom operation. Another way is to having several hashes 
>> simultaneously and select one of them depending on option value. 
> 
> I meant having several hashes in dub cache. Then if the user changes the 
> hash algorithm dub checks calculated hashes against cached ones and 
> avoids total rebuilding.
> 

Hmm, probably I was too confident. I've implemented support for both 
sha1 and sha256. It takes about  30 lines of additional code but what is 
worse the code uses classes now and dynamic memory allocation. I would 
avoid it. But in other it works as I expected:
```
dub build --hash=sha1
dub build --hash=sha256
```
I do not test it in big projects but building dub does not show any 
difference in performance