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cat-file: add mailmap support to -s option

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Even though the cat-file command with `-s` option does not complain when
`--use-mailmap` option is given, the latter option is ignored. Compute
the size of the object after replacing the idents and report it instead.

In order to make `-s` option honour the mailmap mechanism we have to
read the contents of the commit/tag object. Make use of the call to
`oid_object_info_extended()` to get the contents of the object and store
in `buf`. `buf` is later freed in the function.

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: John Cai <johncai86@gmail.com>
Helped-by: Taylor Blau <me@ttaylorr.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Siddharth Asthana <siddharthasthana31@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Siddharth Asthana
2022-12-20 11:31:12 +05:30
committed by Junio C Hamano
parent 63bba4fdd8
commit 49050a043b
3 changed files with 45 additions and 1 deletions
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13
builtin/cat-file.c
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@@ -132,8 +132,21 @@ static int cat_one_file(int opt, const char *exp_type, const char *obj_name,
case 's':
oi.sizep = &size;
if (use_mailmap) {
oi.typep = &type;
oi.contentp = (void**)&buf;
}
if (oid_object_info_extended(the_repository, &oid, &oi, flags) < 0)
die("git cat-file: could not get object info");
if (use_mailmap && (type == OBJ_COMMIT || type == OBJ_TAG)) {
size_t s = size;
buf = replace_idents_using_mailmap(buf, &s);
size = cast_size_t_to_ulong(s);
}
printf("%"PRIuMAX"\n", (uintmax_t)size);
ret = 0;
goto cleanup;