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authorJunio C Hamano <gitster@pobox.com>2024-12-23 09:32:12 -0800
committerJunio C Hamano <gitster@pobox.com>2024-12-23 09:32:12 -0800
commit002a8a9d3697866aec32cc9293e4d9b436bb028f (patch)
tree0ed05e99fd451ae595d4eb4c4fd4513db677561f
parentMerge branch 'ps/build-sign-compare' (diff)
parentt5300: add test for 'show-index --object-format' (diff)
downloadgit-002a8a9d3697866aec32cc9293e4d9b436bb028f.tar.gz
git-002a8a9d3697866aec32cc9293e4d9b436bb028f.zip
Merge branch 'as/show-index-uninitialized-hash'
Regression fix for 'show-index' when run outside of a repository. * as/show-index-uninitialized-hash: t5300: add test for 'show-index --object-format' show-index: fix uninitialized hash function
-rw-r--r--builtin/show-index.c9
-rwxr-xr-xt/t5300-pack-object.sh18
2 files changed, 27 insertions, 0 deletions
diff --git a/builtin/show-index.c b/builtin/show-index.c
index 3152d3c74b..756d632b51 100644
--- a/builtin/show-index.c
+++ b/builtin/show-index.c
@@ -40,6 +40,15 @@ int cmd_show_index(int argc,
repo_set_hash_algo(the_repository, hash_algo);
}
+ /*
+ * Fallback to SHA1 if we are running outside of a repository.
+ *
+ * TODO: Figure out and implement a way to detect the hash algorithm in use by the
+ * the index file passed in and use that instead.
+ */
+ if (!the_hash_algo)
+ repo_set_hash_algo(the_repository, GIT_HASH_SHA1);
+
hashsz = the_hash_algo->rawsz;
if (fread(top_index, 2 * 4, 1, stdin) != 1)
diff --git a/t/t5300-pack-object.sh b/t/t5300-pack-object.sh
index 53dc3cbf90..d1d6248558 100755
--- a/t/t5300-pack-object.sh
+++ b/t/t5300-pack-object.sh
@@ -525,6 +525,24 @@ test_expect_success 'index-pack --strict <pack> works in non-repo' '
test_path_is_file foo.idx
'
+test_expect_success SHA1 'show-index works OK outside a repository' '
+ nongit git show-index <foo.idx
+'
+
+for hash in sha1 sha256
+do
+ test_expect_success 'show-index works OK outside a repository with hash algo passed in via --object-format' '
+ test_when_finished "rm -rf explicit-hash-$hash" &&
+ git init --object-format=$hash explicit-hash-$hash &&
+ test_commit -C explicit-hash-$hash one &&
+ git -C explicit-hash-$hash rev-parse one >in &&
+ git -C explicit-hash-$hash pack-objects explicit-hash-$hash <in &&
+ idx=$(echo explicit-hash-$hash/explicit-hash-$hash*.idx) &&
+ nongit git show-index --object-format=$hash <"$idx" >actual &&
+ test_line_count = 1 actual
+ '
+done
+
test_expect_success !PTHREADS,!FAIL_PREREQS \
'index-pack --threads=N or pack.threads=N warns when no pthreads' '
test_must_fail git index-pack --threads=2 2>err &&