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builtin/rev-parse: introduce --show-ref-format flag

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Introduce a new `--show-ref-format` to git-rev-parse(1) that causes it
to print the ref format used by a repository.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt 2023-12-29 08:27:00 +01:00 committed by Junio C Hamano
parent 58aaf59133
commit 3c4a5318af
3 changed files with 24 additions and 0 deletions
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3
Documentation/git-rev-parse.txt
View file

@ -307,6 +307,9 @@ The following options are unaffected by `--path-format`:
input, multiple algorithms may be printed, space-separated.
If not specified, the default is "storage".
--show-ref-format::
Show the reference storage format used for the repository.
Other Options
~~~~~~~~~~~~~

4
builtin/rev-parse.c
View file

@ -1062,6 +1062,10 @@ int cmd_rev_parse(int argc, const char **argv, const char *prefix)
puts(the_hash_algo->name);
continue;
}
if (!strcmp(arg, "--show-ref-format")) {
puts(ref_storage_format_to_name(the_repository->ref_storage_format));
continue;
}
if (!strcmp(arg, "--end-of-options")) {
seen_end_of_options = 1;
if (filter & (DO_FLAGS | DO_REVS))

17
t/t1500-rev-parse.sh
View file

@ -208,6 +208,23 @@ test_expect_success 'rev-parse --show-object-format in repo' '
grep "unknown mode for --show-object-format: squeamish-ossifrage" err
'
test_expect_success 'rev-parse --show-ref-format' '
test_detect_ref_format >expect &&
git rev-parse --show-ref-format >actual &&
test_cmp expect actual
'
test_expect_success 'rev-parse --show-ref-format with invalid storage' '
test_when_finished "rm -rf repo" &&
git init repo &&
(
cd repo &&
git config extensions.refstorage broken &&
test_must_fail git rev-parse --show-ref-format 2>err &&
grep "error: invalid value for ${SQ}extensions.refstorage${SQ}: ${SQ}broken${SQ}" err
)
'
test_expect_success '--show-toplevel from subdir of working tree' '
pwd >expect &&
git -C sub/dir rev-parse --show-toplevel >actual &&