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t/helper/test-bitmap.c: add 'dump-hashes' mode 

The pack-bitmap writer code is about to learn how to propagate values
from an existing hash-cache. To prepare, teach the test-bitmap helper to
dump the values from a bitmap's hash-cache extension in order to test
those changes.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Taylor Blau 2021-09-14 18:06:02 -04:00 committed by Junio C Hamano
parent 73cd7d9420
commit a05f02b1d9
3 changed files with 37 additions and 1 deletions
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27
pack-bitmap.c
View File

@ -1742,6 +1742,33 @@ int test_bitmap_commits(struct repository *r)
return 0;
}
int test_bitmap_hashes(struct repository *r)
{
struct bitmap_index *bitmap_git = prepare_bitmap_git(r);
struct object_id oid;
uint32_t i, index_pos;
if (!bitmap_git->hashes)
goto cleanup;
for (i = 0; i < bitmap_num_objects(bitmap_git); i++) {
if (bitmap_is_midx(bitmap_git))
index_pos = pack_pos_to_midx(bitmap_git->midx, i);
else
index_pos = pack_pos_to_index(bitmap_git->pack, i);
nth_bitmap_object_oid(bitmap_git, &oid, index_pos);
printf("%s %"PRIu32"\n",
oid_to_hex(&oid), get_be32(bitmap_git->hashes + index_pos));
}
cleanup:
free_bitmap_index(bitmap_git);
return 0;
}
int rebuild_bitmap(const uint32_t *reposition,
struct ewah_bitmap *source,
struct bitmap *dest)

1
pack-bitmap.h
View File

@ -52,6 +52,7 @@ void traverse_bitmap_commit_list(struct bitmap_index *,
show_reachable_fn show_reachable);
void test_bitmap_walk(struct rev_info *revs);
int test_bitmap_commits(struct repository *r);
int test_bitmap_hashes(struct repository *r);
struct bitmap_index *prepare_bitmap_walk(struct rev_info *revs,
struct list_objects_filter_options *filter,
int filter_provided_objects);

10
t/helper/test-bitmap.c
View File

@ -7,6 +7,11 @@ static int bitmap_list_commits(void)
return test_bitmap_commits(the_repository);
}
static int bitmap_dump_hashes(void)
{
return test_bitmap_hashes(the_repository);
}
int cmd__bitmap(int argc, const char **argv)
{
setup_git_directory();
@ -16,9 +21,12 @@ int cmd__bitmap(int argc, const char **argv)
if (!strcmp(argv[1], "list-commits"))
return bitmap_list_commits();
if (!strcmp(argv[1], "dump-hashes"))
return bitmap_dump_hashes();
usage:
usage("\ttest-tool bitmap list-commits");
usage("\ttest-tool bitmap list-commits\n"
"\ttest-tool bitmap dump-hashes");
return -1;
}