pack: convert struct pack_idx_entry to struct object_id

Convert struct pack_idx_entry to use struct object_id by changing the
definition and applying the following semantic patch, plus the standard
object_id transforms:

@@
struct pack_idx_entry E1;
@@
- E1.sha1
+ E1.oid.hash

@@
struct pack_idx_entry *E1;
@@
- E1->sha1
+ E1->oid.hash

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

2 files changed, 56 insertions, 40 deletions

diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 4ff567db47..fef0025e49 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -747,13 +747,13 @@ static int compare_objects(const unsigned char *buf, unsigned long size,
 		ssize_t len = read_istream(data->st, data->buf, size);
 		if (len == 0)
 			die(_("SHA1 COLLISION FOUND WITH %s !"),
-			    sha1_to_hex(data->entry->idx.sha1));
+			    oid_to_hex(&data->entry->idx.oid));
 		if (len < 0)
 			die(_("unable to read %s"),
-			    sha1_to_hex(data->entry->idx.sha1));
+			    oid_to_hex(&data->entry->idx.oid));
 		if (memcmp(buf, data->buf, len))
 			die(_("SHA1 COLLISION FOUND WITH %s !"),
-			    sha1_to_hex(data->entry->idx.sha1));
+			    oid_to_hex(&data->entry->idx.oid));
 		size -= len;
 		buf += len;
 	}
@@ -771,12 +771,12 @@ static int check_collison(struct object_entry *entry)
 
 	memset(&data, 0, sizeof(data));
 	data.entry = entry;
-	data.st = open_istream(entry->idx.sha1, &type, &size, NULL);
+	data.st = open_istream(entry->idx.oid.hash, &type, &size, NULL);
 	if (!data.st)
 		return -1;
 	if (size != entry->size || type != entry->type)
 		die(_("SHA1 COLLISION FOUND WITH %s !"),
-		    sha1_to_hex(entry->idx.sha1));
+		    oid_to_hex(&entry->idx.oid));
 	unpack_data(entry, compare_objects, &data);
 	close_istream(data.st);
 	free(data.buf);
@@ -957,9 +957,10 @@ static void resolve_delta(struct object_entry *delta_obj,
 	if (!result->data)
 		bad_object(delta_obj->idx.offset, _("failed to apply delta"));
 	hash_sha1_file(result->data, result->size,
-		       typename(delta_obj->real_type), delta_obj->idx.sha1);
+		       typename(delta_obj->real_type),
+		       delta_obj->idx.oid.hash);
 	sha1_object(result->data, NULL, result->size, delta_obj->real_type,
-		    delta_obj->idx.sha1);
+		    delta_obj->idx.oid.hash);
 	counter_lock();
 	nr_resolved_deltas++;
 	counter_unlock();
@@ -989,7 +990,7 @@ static struct base_data *find_unresolved_deltas_1(struct base_data *base,
 						  struct base_data *prev_base)
 {
 	if (base->ref_last == -1 && base->ofs_last == -1) {
-		find_ref_delta_children(base->obj->idx.sha1,
+		find_ref_delta_children(base->obj->idx.oid.hash,
 					&base->ref_first, &base->ref_last,
 					OBJ_REF_DELTA);
 
@@ -1130,7 +1131,8 @@ static void parse_pack_objects(unsigned char *sha1)
 	for (i = 0; i < nr_objects; i++) {
 		struct object_entry *obj = &objects[i];
 		void *data = unpack_raw_entry(obj, &ofs_delta->offset,
-					      ref_delta_sha1, obj->idx.sha1);
+					      ref_delta_sha1,
+					      obj->idx.oid.hash);
 		obj->real_type = obj->type;
 		if (obj->type == OBJ_OFS_DELTA) {
 			nr_ofs_deltas++;
@@ -1146,7 +1148,8 @@ static void parse_pack_objects(unsigned char *sha1)
 			obj->real_type = OBJ_BAD;
 			nr_delays++;
 		} else
-			sha1_object(data, NULL, obj->size, obj->type, obj->idx.sha1);
+			sha1_object(data, NULL, obj->size, obj->type,
+				    obj->idx.oid.hash);
 		free(data);
 		display_progress(progress, i+1);
 	}
@@ -1172,7 +1175,8 @@ static void parse_pack_objects(unsigned char *sha1)
 		if (obj->real_type != OBJ_BAD)
 			continue;
 		obj->real_type = obj->type;
-		sha1_object(NULL, obj, obj->size, obj->type, obj->idx.sha1);
+		sha1_object(NULL, obj, obj->size, obj->type,
+			    obj->idx.oid.hash);
 		nr_delays--;
 	}
 	if (nr_delays)
@@ -1330,7 +1334,7 @@ static struct object_entry *append_obj_to_pack(struct sha1file *f,
 	obj[1].idx.offset += write_compressed(f, buf, size);
 	obj[0].idx.crc32 = crc32_end(f);
 	sha1flush(f);
-	hashcpy(obj->idx.sha1, sha1);
+	hashcpy(obj->idx.oid.hash, sha1);
 	return obj;
 }
 
@@ -1581,13 +1585,14 @@ static void show_pack_info(int stat_only)
 		if (stat_only)
 			continue;
 		printf("%s %-6s %lu %lu %"PRIuMAX,
-		       sha1_to_hex(obj->idx.sha1),
+		       oid_to_hex(&obj->idx.oid),
 		       typename(obj->real_type), obj->size,
 		       (unsigned long)(obj[1].idx.offset - obj->idx.offset),
 		       (uintmax_t)obj->idx.offset);
 		if (is_delta_type(obj->type)) {
 			struct object_entry *bobj = &objects[obj_stat[i].base_object_no];
-			printf(" %u %s", obj_stat[i].delta_depth, sha1_to_hex(bobj->idx.sha1));
+			printf(" %u %s", obj_stat[i].delta_depth,
+			       oid_to_hex(&bobj->idx.oid));
 		}
 		putchar('\n');
 	}
diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 4770708063..d76ff05426 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -106,12 +106,14 @@ static void *get_delta(struct object_entry *entry)
 	void *buf, *base_buf, *delta_buf;
 	enum object_type type;
 
-	buf = read_sha1_file(entry->idx.sha1, &type, &size);
+	buf = read_sha1_file(entry->idx.oid.hash, &type, &size);
 	if (!buf)
-		die("unable to read %s", sha1_to_hex(entry->idx.sha1));
-	base_buf = read_sha1_file(entry->delta->idx.sha1, &type, &base_size);
+		die("unable to read %s", oid_to_hex(&entry->idx.oid));
+	base_buf = read_sha1_file(entry->delta->idx.oid.hash, &type,
+				  &base_size);
 	if (!base_buf)
-		die("unable to read %s", sha1_to_hex(entry->delta->idx.sha1));
+		die("unable to read %s",
+		    oid_to_hex(&entry->delta->idx.oid));
 	delta_buf = diff_delta(base_buf, base_size,
 			       buf, size, &delta_size, 0);
 	if (!delta_buf || delta_size != entry->delta_size)
@@ -249,12 +251,14 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent
 	if (!usable_delta) {
 		if (entry->type == OBJ_BLOB &&
 		    entry->size > big_file_threshold &&
-		    (st = open_istream(entry->idx.sha1, &type, &size, NULL)) != NULL)
+		    (st = open_istream(entry->idx.oid.hash, &type, &size, NULL)) != NULL)
 			buf = NULL;
 		else {
-			buf = read_sha1_file(entry->idx.sha1, &type, &size);
+			buf = read_sha1_file(entry->idx.oid.hash, &type,
+					     &size);
 			if (!buf)
-				die(_("unable to read %s"), sha1_to_hex(entry->idx.sha1));
+				die(_("unable to read %s"),
+				    oid_to_hex(&entry->idx.oid));
 		}
 		/*
 		 * make sure no cached delta data remains from a
@@ -322,7 +326,7 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent
 			return 0;
 		}
 		sha1write(f, header, hdrlen);
-		sha1write(f, entry->delta->idx.sha1, 20);
+		sha1write(f, entry->delta->idx.oid.hash, 20);
 		hdrlen += 20;
 	} else {
 		if (limit && hdrlen + datalen + 20 >= limit) {
@@ -334,7 +338,7 @@ static unsigned long write_no_reuse_object(struct sha1file *f, struct object_ent
 		sha1write(f, header, hdrlen);
 	}
 	if (st) {
-		datalen = write_large_blob_data(st, f, entry->idx.sha1);
+		datalen = write_large_blob_data(st, f, entry->idx.oid.hash);
 		close_istream(st);
 	} else {
 		sha1write(f, buf, datalen);
@@ -369,7 +373,8 @@ static off_t write_reuse_object(struct sha1file *f, struct object_entry *entry,
 	datalen = revidx[1].offset - offset;
 	if (!pack_to_stdout && p->index_version > 1 &&
 	    check_pack_crc(p, &w_curs, offset, datalen, revidx->nr)) {
-		error("bad packed object CRC for %s", sha1_to_hex(entry->idx.sha1));
+		error("bad packed object CRC for %s",
+		      oid_to_hex(&entry->idx.oid));
 		unuse_pack(&w_curs);
 		return write_no_reuse_object(f, entry, limit, usable_delta);
 	}
@@ -379,7 +384,8 @@ static off_t write_reuse_object(struct sha1file *f, struct object_entry *entry,
 
 	if (!pack_to_stdout && p->index_version == 1 &&
 	    check_pack_inflate(p, &w_curs, offset, datalen, entry->size)) {
-		error("corrupt packed object for %s", sha1_to_hex(entry->idx.sha1));
+		error("corrupt packed object for %s",
+		      oid_to_hex(&entry->idx.oid));
 		unuse_pack(&w_curs);
 		return write_no_reuse_object(f, entry, limit, usable_delta);
 	}
@@ -404,7 +410,7 @@ static off_t write_reuse_object(struct sha1file *f, struct object_entry *entry,
 			return 0;
 		}
 		sha1write(f, header, hdrlen);
-		sha1write(f, entry->delta->idx.sha1, 20);
+		sha1write(f, entry->delta->idx.oid.hash, 20);
 		hdrlen += 20;
 		reused_delta++;
 	} else {
@@ -509,7 +515,7 @@ static enum write_one_status write_one(struct sha1file *f,
 	recursing = (e->idx.offset == 1);
 	if (recursing) {
 		warning("recursive delta detected for object %s",
-			sha1_to_hex(e->idx.sha1));
+			oid_to_hex(&e->idx.oid));
 		return WRITE_ONE_RECURSIVE;
 	} else if (e->idx.offset || e->preferred_base) {
 		/* offset is non zero if object is written already. */
@@ -1432,7 +1438,7 @@ static void check_object(struct object_entry *entry)
 				ofs += 1;
 				if (!ofs || MSB(ofs, 7)) {
 					error("delta base offset overflow in pack for %s",
-					      sha1_to_hex(entry->idx.sha1));
+					      oid_to_hex(&entry->idx.oid));
 					goto give_up;
 				}
 				c = buf[used_0++];
@@ -1441,7 +1447,7 @@ static void check_object(struct object_entry *entry)
 			ofs = entry->in_pack_offset - ofs;
 			if (ofs <= 0 || ofs >= entry->in_pack_offset) {
 				error("delta base offset out of bound for %s",
-				      sha1_to_hex(entry->idx.sha1));
+				      oid_to_hex(&entry->idx.oid));
 				goto give_up;
 			}
 			if (reuse_delta && !entry->preferred_base) {
@@ -1498,7 +1504,7 @@ static void check_object(struct object_entry *entry)
 		unuse_pack(&w_curs);
 	}
 
-	entry->type = sha1_object_info(entry->idx.sha1, &entry->size);
+	entry->type = sha1_object_info(entry->idx.oid.hash, &entry->size);
 	/*
 	 * The error condition is checked in prepare_pack().  This is
 	 * to permit a missing preferred base object to be ignored
@@ -1514,7 +1520,7 @@ static int pack_offset_sort(const void *_a, const void *_b)
 
 	/* avoid filesystem trashing with loose objects */
 	if (!a->in_pack && !b->in_pack)
-		return hashcmp(a->idx.sha1, b->idx.sha1);
+		return oidcmp(&a->idx.oid, &b->idx.oid);
 
 	if (a->in_pack < b->in_pack)
 		return -1;
@@ -1560,7 +1566,8 @@ static void drop_reused_delta(struct object_entry *entry)
 		 * And if that fails, the error will be recorded in entry->type
 		 * and dealt with in prepare_pack().
 		 */
-		entry->type = sha1_object_info(entry->idx.sha1, &entry->size);
+		entry->type = sha1_object_info(entry->idx.oid.hash,
+					       &entry->size);
 	}
 }
 
@@ -1852,26 +1859,29 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
 	/* Load data if not already done */
 	if (!trg->data) {
 		read_lock();
-		trg->data = read_sha1_file(trg_entry->idx.sha1, &type, &sz);
+		trg->data = read_sha1_file(trg_entry->idx.oid.hash, &type,
+					   &sz);
 		read_unlock();
 		if (!trg->data)
 			die("object %s cannot be read",
-			    sha1_to_hex(trg_entry->idx.sha1));
+			    oid_to_hex(&trg_entry->idx.oid));
 		if (sz != trg_size)
 			die("object %s inconsistent object length (%lu vs %lu)",
-			    sha1_to_hex(trg_entry->idx.sha1), sz, trg_size);
+			    oid_to_hex(&trg_entry->idx.oid), sz,
+			    trg_size);
 		*mem_usage += sz;
 	}
 	if (!src->data) {
 		read_lock();
-		src->data = read_sha1_file(src_entry->idx.sha1, &type, &sz);
+		src->data = read_sha1_file(src_entry->idx.oid.hash, &type,
+					   &sz);
 		read_unlock();
 		if (!src->data) {
 			if (src_entry->preferred_base) {
 				static int warned = 0;
 				if (!warned++)
 					warning("object %s cannot be read",
-						sha1_to_hex(src_entry->idx.sha1));
+						oid_to_hex(&src_entry->idx.oid));
 				/*
 				 * Those objects are not included in the
 				 * resulting pack.  Be resilient and ignore
@@ -1881,11 +1891,12 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
 				return 0;
 			}
 			die("object %s cannot be read",
-			    sha1_to_hex(src_entry->idx.sha1));
+			    oid_to_hex(&src_entry->idx.oid));
 		}
 		if (sz != src_size)
 			die("object %s inconsistent object length (%lu vs %lu)",
-			    sha1_to_hex(src_entry->idx.sha1), sz, src_size);
+			    oid_to_hex(&src_entry->idx.oid), sz,
+			    src_size);
 		*mem_usage += sz;
 	}
 	if (!src->index) {
@@ -2406,7 +2417,7 @@ static void prepare_pack(int window, int depth)
 			nr_deltas++;
 			if (entry->type < 0)
 				die("unable to get type of object %s",
-				    sha1_to_hex(entry->idx.sha1));
+				    oid_to_hex(&entry->idx.oid));
 		} else {
 			if (entry->type < 0) {
 				/*