Karthik Nayak <karthik.188@xxxxxxxxx> writes:
> From: Karthik Nayak <karthik.188@xxxxxxxxx>
>
> Add support for %(objectname:size=X) where X is a number.
> This will print the first X characters of an objectname.
> The minimum value for X is 5. Hence any value lesser than
> 5 will default to 5 characters.
Where does this hardcoded 5 come from?
I'd agree that we would want some minimum for sanity (not safety),
but I do not think we want random callers of find-unique-abbrev
arbitrarily imposing their own minimum, making different codepaths
behave inconsistently without a good reason.
It seems that the minimum we use for sanity at the core level is
MINIMUM_ABBREV. Is there a reason why that value is inappropriate
for this codepath?
>
> Mentored-by: Christian Couder <christian.couder@xxxxxxxxx>
> Mentored-by: Matthieu Moy <matthieu.moy@xxxxxxxxxxxxxxx>
> Signed-off-by: Karthik Nayak <karthik.188@xxxxxxxxx>
> ---
> ref-filter.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/ref-filter.c b/ref-filter.c
> index 0a34924..4c5e3f8 100644
> --- a/ref-filter.c
> +++ b/ref-filter.c
> @@ -196,6 +196,8 @@ static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned lo
> static int grab_objectname(const char *name, const unsigned char *sha1,
> struct atom_value *v)
> {
> + const char *p;
> +
> if (!strcmp(name, "objectname")) {
> char *s = xmalloc(41);
> strcpy(s, sha1_to_hex(sha1));
> @@ -206,6 +208,13 @@ static int grab_objectname(const char *name, const unsigned char *sha1,
> v->s = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
> return 1;
> }
> + if (skip_prefix(name, "objectname:size=", &p)) {
> + unsigned int size = atoi(p);
> + if (size < 5)
> + size = 5;
> + v->s = xstrdup(find_unique_abbrev(sha1, size));
> + return 1;
> + }
> return 0;
> }
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