midx: pass a repository pointer

Much of the multi-pack-index code focuses on the multi_pack_index
struct, and so we only pass a pointer to the current one. However,
we will insert a dependency on the packed_git linked list in a
future change, so we will need a repository reference. Inserting
these parameters is a significant enough change to split out.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

5 files changed, 22 insertions, 15 deletions

diff --git a/builtin/multi-pack-index.c b/builtin/multi-pack-index.c
index ae6e476ad5..72dfd3dadc 100644
--- a/builtin/multi-pack-index.c
+++ b/builtin/multi-pack-index.c
@@ -46,7 +46,7 @@ int cmd_multi_pack_index(int argc, const char **argv,
 	if (!strcmp(argv[0], "write"))
 		return write_midx_file(opts.object_dir);
 	if (!strcmp(argv[0], "verify"))
-		return verify_midx_file(opts.object_dir);
+		return verify_midx_file(the_repository, opts.object_dir);
 
 	die(_("unrecognized verb: %s"), argv[0]);
 }
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 2d9a3bdc9d..e606b9ef03 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -1078,7 +1078,7 @@ static int want_object_in_pack(const struct object_id *oid,
 
 	for (m = get_multi_pack_index(the_repository); m; m = m->next) {
 		struct pack_entry e;
-		if (fill_midx_entry(oid, &e, m)) {
+		if (fill_midx_entry(the_repository, oid, &e, m)) {
 			struct packed_git *p = e.p;
 			off_t offset;
 
diff --git a/midx.c b/midx.c
index d5d2e9522f..8b8faec35a 100644
--- a/midx.c
+++ b/midx.c
@@ -201,7 +201,7 @@ void close_midx(struct multi_pack_index *m)
 	FREE_AND_NULL(m->pack_names);
 }
 
-int prepare_midx_pack(struct multi_pack_index *m, uint32_t pack_int_id)
+int prepare_midx_pack(struct repository *r, struct multi_pack_index *m, uint32_t pack_int_id)
 {
 	struct strbuf pack_name = STRBUF_INIT;
 
@@ -261,7 +261,10 @@ static uint32_t nth_midxed_pack_int_id(struct multi_pack_index *m, uint32_t pos)
 	return get_be32(m->chunk_object_offsets + pos * MIDX_CHUNK_OFFSET_WIDTH);
 }
 
-static int nth_midxed_pack_entry(struct multi_pack_index *m, struct pack_entry *e, uint32_t pos)
+static int nth_midxed_pack_entry(struct repository *r,
+				 struct multi_pack_index *m,
+				 struct pack_entry *e,
+				 uint32_t pos)
 {
 	uint32_t pack_int_id;
 	struct packed_git *p;
@@ -271,7 +274,7 @@ static int nth_midxed_pack_entry(struct multi_pack_index *m, struct pack_entry *
 
 	pack_int_id = nth_midxed_pack_int_id(m, pos);
 
-	if (prepare_midx_pack(m, pack_int_id))
+	if (prepare_midx_pack(r, m, pack_int_id))
 		die(_("error preparing packfile from multi-pack-index"));
 	p = m->packs[pack_int_id];
 
@@ -301,14 +304,17 @@ static int nth_midxed_pack_entry(struct multi_pack_index *m, struct pack_entry *
 	return 1;
 }
 
-int fill_midx_entry(const struct object_id *oid, struct pack_entry *e, struct multi_pack_index *m)
+int fill_midx_entry(struct repository * r,
+		    const struct object_id *oid,
+		    struct pack_entry *e,
+		    struct multi_pack_index *m)
 {
 	uint32_t pos;
 
 	if (!bsearch_midx(oid, m, &pos))
 		return 0;
 
-	return nth_midxed_pack_entry(m, e, pos);
+	return nth_midxed_pack_entry(r, m, e, pos);
 }
 
 /* Match "foo.idx" against either "foo.pack" _or_ "foo.idx". */
@@ -1020,7 +1026,7 @@ static int compare_pair_pos_vs_id(const void *_a, const void *_b)
 			display_progress(progress, _n); \
 	} while (0)
 
-int verify_midx_file(const char *object_dir)
+int verify_midx_file(struct repository *r, const char *object_dir)
 {
 	struct pair_pos_vs_id *pairs = NULL;
 	uint32_t i;
@@ -1034,7 +1040,7 @@ int verify_midx_file(const char *object_dir)
 	progress = start_progress(_("Looking for referenced packfiles"),
 				  m->num_packs);
 	for (i = 0; i < m->num_packs; i++) {
-		if (prepare_midx_pack(m, i))
+		if (prepare_midx_pack(r, m, i))
 			midx_report("failed to load pack in position %d", i);
 
 		display_progress(progress, i + 1);
@@ -1099,7 +1105,7 @@ int verify_midx_file(const char *object_dir)
 
 		nth_midxed_object_oid(&oid, m, pairs[i].pos);
 
-		if (!fill_midx_entry(&oid, &e, m)) {
+		if (!fill_midx_entry(r, &oid, &e, m)) {
 			midx_report(_("failed to load pack entry for oid[%d] = %s"),
 				    pairs[i].pos, oid_to_hex(&oid));
 			continue;
diff --git a/midx.h b/midx.h
index 26dd042d63..3eb29731f2 100644
--- a/midx.h
+++ b/midx.h
@@ -5,6 +5,7 @@
 
 struct object_id;
 struct pack_entry;
+struct repository;
 
 #define GIT_TEST_MULTI_PACK_INDEX "GIT_TEST_MULTI_PACK_INDEX"
 
@@ -37,18 +38,18 @@ struct multi_pack_index {
 };
 
 struct multi_pack_index *load_multi_pack_index(const char *object_dir, int local);
-int prepare_midx_pack(struct multi_pack_index *m, uint32_t pack_int_id);
+int prepare_midx_pack(struct repository *r, struct multi_pack_index *m, uint32_t pack_int_id);
 int bsearch_midx(const struct object_id *oid, struct multi_pack_index *m, uint32_t *result);
 struct object_id *nth_midxed_object_oid(struct object_id *oid,
 					struct multi_pack_index *m,
 					uint32_t n);
-int fill_midx_entry(const struct object_id *oid, struct pack_entry *e, struct multi_pack_index *m);
+int fill_midx_entry(struct repository *r, const struct object_id *oid, struct pack_entry *e, struct multi_pack_index *m);
 int midx_contains_pack(struct multi_pack_index *m, const char *idx_or_pack_name);
 int prepare_multi_pack_index_one(struct repository *r, const char *object_dir, int local);
 
 int write_midx_file(const char *object_dir);
 void clear_midx_file(struct repository *r);
-int verify_midx_file(const char *object_dir);
+int verify_midx_file(struct repository *r, const char *object_dir);
 
 void close_midx(struct multi_pack_index *m);
 
diff --git a/packfile.c b/packfile.c
index cdf6b6ec34..7b94a14726 100644
--- a/packfile.c
+++ b/packfile.c
@@ -1035,7 +1035,7 @@ struct packed_git *get_all_packs(struct repository *r)
 		for (m = r->objects->multi_pack_index; m; m = m->next) {
 			uint32_t i;
 			for (i = 0; i < m->num_packs; i++) {
-				if (!prepare_midx_pack(m, i)) {
+				if (!prepare_midx_pack(r, m, i)) {
 					m->packs[i]->next = p;
 					p = m->packs[i];
 				}
@@ -1998,7 +1998,7 @@ int find_pack_entry(struct repository *r, const struct object_id *oid, struct pa
 		return 0;
 
 	for (m = r->objects->multi_pack_index; m; m = m->next) {
-		if (fill_midx_entry(oid, e, m))
+		if (fill_midx_entry(r, oid, e, m))
 			return 1;
 	}