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Re: [RFC PATCH 1/5] ref-filter: add objectsize:disk option

From
Junio C Hamano <gitster@pobox.com>
Date
Nov 12, 2018, 05:03 UTC
Message-ID
<xmqqr2fq3n1j.fsf@gitster-ct.c.googlers.com>
In-Reply-To
<01020166f76d845f-1a02a31e-5094-4b27-974d-a23811066c58-000000@eu-west-1.amazonses.com>
Olga Telezhnaya <olyatelezhnaya@gmail.com> writes:
Show 8 quoted lines
> @@ -876,11 +882,13 @@ static void grab_common_values(struct atom_value *val, int deref, struct expand_
>  			name++;
>  		if (!strcmp(name, "objecttype"))
>  			v->s = xstrdup(type_name(oi->type));
> -		else if (!strcmp(name, "objectsize")) {
> +		else if (!strcmp(name, "objectsize:disk")) {
> +			v->value = oi->disk_size;
> +			v->s = xstrfmt("%lld", (long long)oi->disk_size);
oi.disk_size is off_t; do we know "long long" 
   (1) is available widely enough (I think it is from c99)?
   (2) is sufficiently wide so that we can safely cast off_t to?
   (3) will stay to be sufficiently wide as machines get larger
       together with standard types like off_t in the future?

I'd rather use intmax_t (as off_t is a signed integral type) so that we do not have to worry about these questions in the first place.

> +		} else if (!strcmp(name, "objectsize")) {
>  			v->value = oi->size;
>  			v->s = xstrfmt("%lu", oi->size);

This is not a suggestion but is a genuine question, but I wonder if two years down the road somebody who meets this API for the first time find the asymmetry between "objectsize" and "objectsize:disk" a tad strange and suggest the former to have "objectsize:real" or some synonym. Or we can consider "objectsize" the primary thing (hence needing no colon-plus-modifier to clarify what kind of size we are asking) and leave these two deliberatly asymmetric. I am leaning towards the latter myself.

Show 9 quoted lines
> -		}
> -		else if (deref)
> +		} else if (deref)
>  			grab_objectname(name, &oi->oid, v, &used_atom[i]);
>  	}
>  }
>
> --
> https://github.com/git/git/pull/552
Previous: Junio C HamanoNext: Johannes Schindelin
Message 7 of 15 in “ref-filter: add objectsize:disk option”
  1. 1/5 ref-filter: add objectsize:disk optionOlga Telezhnaya, Nov 9, 2018
  2. 3/5 ref-filter: add deltabase optionOlga Telezhnaya, Nov 9, 2018
  3. 4/5 ref-filter: add tests for deltabaseOlga Telezhnaya, Nov 9, 2018
  4. 2/5 ref-filter: add tests for objectsize:diskOlga Telezhnaya, Nov 9, 2018
  5. 5/5 ref-filter: add docs for new optionsOlga Telezhnaya, Nov 9, 2018
  6. Junio C HamanoNov 12, 2018
  7. Junio C HamanoNov 12, 2018
  8. Johannes SchindelinNov 12, 2018
  9. Jeff KingNov 12, 2018
  10. Junio C HamanoNov 13, 2018
  11. Оля ТележнаяNov 20, 2018
  12. Junio C HamanoNov 21, 2018
  13. Johannes SchindelinNov 22, 2018
  14. Junio C HamanoNov 24, 2018
  15. Jeff KingNov 12, 2018

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