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authorSiddharth Asthana <siddharthasthana31@gmail.com>2022-12-20 11:31:12 +0530
committerJunio C Hamano <gitster@pobox.com>2022-12-20 15:20:45 +0900
commit49050a043bf767d370e7288cb6cca0ca21f13404 (patch)
treed61bbc259d2655f6b22176c35bba41099c13f3b8
parent63bba4fdd86d80ef061c449daa97a981a9be0792 (diff)
downloadgit-49050a043bf767d370e7288cb6cca0ca21f13404.tar.xz
cat-file: add mailmap support to -s option
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>
-rw-r--r--Documentation/git-cat-file.txt4
-rw-r--r--builtin/cat-file.c13
-rwxr-xr-xt/t4203-mailmap.sh29
3 files changed, 45 insertions, 1 deletions
diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt
index ec30b5c574..f82d702d6b 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 fa7bd89169..8a6e2343ec 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..b8ec5e0959 100755
--- a/t/t4203-mailmap.sh
+++ b/t/t4203-mailmap.sh
@@ -1022,4 +1022,33 @@ 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@example.com> Orig <orig@example.com>
+ EOF
+ git cat-file commit HEAD >commit.out &&
+ echo $(wc -c <commit.out) >expect &&
+ git cat-file --use-mailmap commit HEAD >commit.out &&
+ echo $(wc -c <commit.out) >>expect &&
+ git cat-file -s HEAD >actual &&
+ git cat-file --use-mailmap -s HEAD >>actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git cat-file -s returns correct size with --use-mailmap for tag objects' '
+ test_when_finished "rm .mailmap" &&
+ cat >.mailmap <<-\EOF &&
+ Orig <orig@example.com> C O Mitter <committer@example.com>
+ EOF
+ git tag -a -m "annotated tag" v3 &&
+ git cat-file tag v3 >tag.out &&
+ echo $(wc -c <tag.out) >expect &&
+ git cat-file --use-mailmap tag v3 >tag.out &&
+ echo $(wc -c <tag.out) >>expect &&
+ git cat-file -s v3 >actual &&
+ git cat-file --use-mailmap -s v3 >>actual &&
+ test_cmp expect actual
+'
+
test_done