Signed-off-by: Derrick Stolee <dstolee@xxxxxxxxxxxxx> --- midx.c | 17 +++++++++++++++++ midx.h | 1 + t/helper/test-read-midx.c | 5 +++++ t/t5319-multi-pack-index.sh | 17 ++++++++++++----- 4 files changed, 35 insertions(+), 5 deletions(-) diff --git a/midx.c b/midx.c index ca7a32bf95..fcdf6553ce 100644 --- a/midx.c +++ b/midx.c @@ -37,6 +37,7 @@ struct multi_pack_index *load_multi_pack_index(const char *object_dir) uint32_t hash_version; char *midx_name = get_midx_filename(object_dir); uint32_t i; + const char *cur_pack_name; fd = git_open(midx_name); @@ -115,6 +116,22 @@ struct multi_pack_index *load_multi_pack_index(const char *object_dir) if (!m->chunk_pack_names) die(_("multi-pack-index missing required pack-name chunk")); + m->pack_names = xcalloc(m->num_packs, sizeof(*m->pack_names)); + + cur_pack_name = (const char *)m->chunk_pack_names; + for (i = 0; i < m->num_packs; i++) { + m->pack_names[i] = cur_pack_name; + + cur_pack_name += strlen(cur_pack_name) + 1; + + if (i && strcmp(m->pack_names[i], m->pack_names[i - 1]) <= 0) { + error(_("multi-pack-index pack names out of order: '%s' before '%s'"), + m->pack_names[i - 1], + m->pack_names[i]); + goto cleanup_fail; + } + } + return m; cleanup_fail: diff --git a/midx.h b/midx.h index 38af01fa3b..17b56172e3 100644 --- a/midx.h +++ b/midx.h @@ -16,6 +16,7 @@ struct multi_pack_index { const unsigned char *chunk_pack_names; + const char **pack_names; char object_dir[FLEX_ARRAY]; }; diff --git a/t/helper/test-read-midx.c b/t/helper/test-read-midx.c index 3f2d2cfa78..76a60d7882 100644 --- a/t/helper/test-read-midx.c +++ b/t/helper/test-read-midx.c @@ -6,6 +6,7 @@ static int read_midx_file(const char *object_dir) { + uint32_t i; struct multi_pack_index *m = load_multi_pack_index(object_dir); if (!m) @@ -24,6 +25,10 @@ static int read_midx_file(const char *object_dir) printf("\n"); + printf("packs:\n"); + for (i = 0; i < m->num_packs; i++) + printf("%s\n", m->pack_names[i]); + printf("object-dir: %s\n", m->object_dir); return 0; diff --git a/t/t5319-multi-pack-index.sh b/t/t5319-multi-pack-index.sh index 7512d55c92..e8da082c64 100755 --- a/t/t5319-multi-pack-index.sh +++ b/t/t5319-multi-pack-index.sh @@ -5,11 +5,18 @@ test_description='multi-pack-indexes' midx_read_expect () { NUM_PACKS=$1 - cat >expect <<-EOF - header: 4d494458 1 1 $NUM_PACKS - chunks: pack-names - object-dir: . - EOF + { + cat <<-EOF && + header: 4d494458 1 1 $NUM_PACKS + chunks: pack-names + packs: + EOF + if test $NUM_PACKS -ge 1 + then + ls pack/ | grep idx | sort + fi && + printf "object-dir: .\n" + } >expect && test-tool read-midx . >actual && test_cmp expect actual } -- 2.18.0.118.gd4f65b8d14