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@xxxxxx>
---
Documentation/git-rev-parse.txt | 3 +++
builtin/rev-parse.c | 4 ++++
t/t1500-rev-parse.sh | 17 +++++++++++++++++
3 files changed, 24 insertions(+)
diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt
index 912fab9f5e..546faf9017 100644
--- a/Documentation/git-rev-parse.txt
+++ b/Documentation/git-rev-parse.txt
@@ -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
~~~~~~~~~~~~~
diff --git a/builtin/rev-parse.c b/builtin/rev-parse.c
index fde8861ca4..99725a6ff1 100644
--- a/builtin/rev-parse.c
+++ b/builtin/rev-parse.c
@@ -1059,6 +1059,10 @@ 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))
diff --git a/t/t1500-rev-parse.sh b/t/t1500-rev-parse.sh
index 3f9e7f62e4..a669e592f1 100755
--- a/t/t1500-rev-parse.sh
+++ b/t/t1500-rev-parse.sh
@@ -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 &&
--
2.43.GIT
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