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@xxxxxxxxx>
Mentored-by: John Cai <johncai86@xxxxxxxxx>
Signed-off-by: Siddharth Asthana <siddharthasthana31@xxxxxxxxx>
---
Documentation/git-cat-file.txt | 4 +++-
builtin/cat-file.c | 13 +++++++++++++
t/t4203-mailmap.sh | 10 ++++++++++
3 files changed, 26 insertions(+), 1 deletion(-)
diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt
index ec30b5c574..594b6f2dfd 100644
--- a/Documentation/git-cat-file.txt
+++ b/Documentation/git-cat-file.txt
@@ -45,7 +45,9 @@ OPTIONS
-s::
Instead of the content, show the object size identified by
- `<object>`.
+ `<object>`. If used with `--use-mailmap` option, will show the
+ size of updated object after replacing idents using the mailmap
+ mechanism.
-e::
Exit with zero status if `<object>` exists and is a valid
diff --git a/builtin/cat-file.c b/builtin/cat-file.c
index 989eee0bb4..9942b93867 100644
--- a/builtin/cat-file.c
+++ b/builtin/cat-file.c
@@ -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;
diff --git a/t/t4203-mailmap.sh b/t/t4203-mailmap.sh
index cd1cab3e54..59513e7c57 100755
--- a/t/t4203-mailmap.sh
+++ b/t/t4203-mailmap.sh
@@ -1022,4 +1022,14 @@ test_expect_success '--mailmap enables mailmap in cat-file for annotated tag obj
test_cmp expect actual
'
+test_expect_success 'git cat-file -s returns correct size with --use-mailmap' '
+ test_when_finished "rm .mailmap" &&
+ cat >.mailmap <<-EOF &&
+ C O Mitter <committer@xxxxxxxxxxx> Orig <orig@xxxxxxxxxxx>
+ EOF
+ echo "220" >expect &&
+ git cat-file --use-mailmap -s HEAD >actual &&
+ test_cmp expect actual
+'
+
test_done
--
2.38.0.rc1.8.g9592ff2ba4
