[Mesa-dev] [PATCH] anv_icd.py: improve reproducible builds

[Frank Richter]

On 26.01.2018 09:56, Maxin B. John wrote:
>>> @@ -44,4 +44,4 @@ if __name__ == '__main__':
>>>       }
>>>
>>>       with open(args.out, 'w') as f:
>>> -        json.dump(json_data, f, indent = 4)
>>> +        json.dump(json_data, f, indent = 4, sort_keys=True)
>>
>> I'm slightly confused what exactly causes the issue.
>> Please shed some light so we can add it to the commit message.

As nobody answered earlier...
Python dicts do not guarantee any key order at all.
Practically, I think the order depends on the hash value of the key - 
but, since Python uses a different hash seed every time (security 
reasons or so), the hash values change every time, and thus any order of 
the keys changes as well.
Sorting keys obviously guarantees a specific order.

-f.r.