Re: Blob hash of binary files in patches generated by git format patch show in full form instead of short form

[Bagas Sanjaya <bagasdotme@gmail.com>]

Oh oh oh, I see git diff format for generating patches in documentation for
git diff-files.

On 22/03/21 12.47, Bagas Sanjaya wrote:
> On 22/03/21 00.31, Junio C Hamano wrote:
>> Bagas Sanjaya <bagasdotme@gmail.com> writes:
>>
>>> What's different between what you expected and what actually happened?
>>>
>>> Blob hash for binary files are shown in full form, as opposed to blob hash
>>> for text files.
>>
>> This is working as intended, designed and implemented.
>>
>> The textual patch is meant to be applicable on target text that may
>> even have been slightly modified from the original from which the
>> patch was taken, and the abbreviated object name on the "index" line
>> is there mostly for human's sanity check and as a visual aid.
>> Ordinarily it is not used to actually find the matching blob object
>> (and it is not an error if there is no matching blob object in the
>> repository that a patch application is attempted in).
>>
>> But the binary patch is designed to be applicable only to an exact
>> copy of the original and nowhere else.  The object name is given in
>> full, instead of using abbreviated form, to ensure that we do not
>> try to apply a binary patch to an object whose name is "similar".
>>
>> Thanks.
>>
> 
> Hmm... but I don't see that in the documentation for git format-patch.
> Maybe I need to send doc update.
> 

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