1 files changed, 44 insertions, 42 deletions

diff --git a/fast-import.c b/fast-import.c
index b70ac025e0..58ef360da4 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -316,7 +316,7 @@ static struct atom_str **atom_table;
 /* The .pack file being generated */
 static struct pack_idx_option pack_idx_opts;
 static unsigned int pack_id;
-static struct sha1file *pack_file;
+static struct hashfile *pack_file;
 static struct packed_git *pack_data;
 static struct packed_git **all_packs;
 static off_t pack_size;
@@ -905,12 +905,12 @@ static void start_packfile(void)
 
 	p->pack_fd = pack_fd;
 	p->do_not_close = 1;
-	pack_file = sha1fd(pack_fd, p->pack_name);
+	pack_file = hashfd(pack_fd, p->pack_name);
 
 	hdr.hdr_signature = htonl(PACK_SIGNATURE);
 	hdr.hdr_version = htonl(2);
 	hdr.hdr_entries = 0;
-	sha1write(pack_file, &hdr, sizeof(hdr));
+	hashwrite(pack_file, &hdr, sizeof(hdr));
 
 	pack_data = p;
 	pack_size = sizeof(hdr);
@@ -1016,7 +1016,7 @@ static void end_packfile(void)
 		struct tag *t;
 
 		close_pack_windows(pack_data);
-		sha1close(pack_file, cur_pack_oid.hash, 0);
+		hashclose(pack_file, cur_pack_oid.hash, 0);
 		fixup_pack_header_footer(pack_data->pack_fd, pack_data->sha1,
 				    pack_data->pack_name, object_count,
 				    cur_pack_oid.hash, pack_size);
@@ -1092,15 +1092,15 @@ static int store_object(
 	unsigned char hdr[96];
 	struct object_id oid;
 	unsigned long hdrlen, deltalen;
-	git_SHA_CTX c;
+	git_hash_ctx c;
 	git_zstream s;
 
 	hdrlen = xsnprintf((char *)hdr, sizeof(hdr), "%s %lu",
-			   typename(type), (unsigned long)dat->len) + 1;
-	git_SHA1_Init(&c);
-	git_SHA1_Update(&c, hdr, hdrlen);
-	git_SHA1_Update(&c, dat->buf, dat->len);
-	git_SHA1_Final(oid.hash, &c);
+			   type_name(type), (unsigned long)dat->len) + 1;
+	the_hash_algo->init_fn(&c);
+	the_hash_algo->update_fn(&c, hdr, hdrlen);
+	the_hash_algo->update_fn(&c, dat->buf, dat->len);
+	the_hash_algo->final_fn(oid.hash, &c);
 	if (oidout)
 		oidcpy(oidout, &oid);
 
@@ -1118,11 +1118,13 @@ static int store_object(
 		return 1;
 	}
 
-	if (last && last->data.buf && last->depth < max_depth && dat->len > 20) {
+	if (last && last->data.buf && last->depth < max_depth
+		&& dat->len > the_hash_algo->rawsz) {
+
 		delta_count_attempts_by_type[type]++;
 		delta = diff_delta(last->data.buf, last->data.len,
 			dat->buf, dat->len,
-			&deltalen, dat->len - 20);
+			&deltalen, dat->len - the_hash_algo->rawsz);
 	} else
 		delta = NULL;
 
@@ -1180,23 +1182,23 @@ static int store_object(
 
 		hdrlen = encode_in_pack_object_header(hdr, sizeof(hdr),
 						      OBJ_OFS_DELTA, deltalen);
-		sha1write(pack_file, hdr, hdrlen);
+		hashwrite(pack_file, hdr, hdrlen);
 		pack_size += hdrlen;
 
 		hdr[pos] = ofs & 127;
 		while (ofs >>= 7)
 			hdr[--pos] = 128 | (--ofs & 127);
-		sha1write(pack_file, hdr + pos, sizeof(hdr) - pos);
+		hashwrite(pack_file, hdr + pos, sizeof(hdr) - pos);
 		pack_size += sizeof(hdr) - pos;
 	} else {
 		e->depth = 0;
 		hdrlen = encode_in_pack_object_header(hdr, sizeof(hdr),
 						      type, dat->len);
-		sha1write(pack_file, hdr, hdrlen);
+		hashwrite(pack_file, hdr, hdrlen);
 		pack_size += hdrlen;
 	}
 
-	sha1write(pack_file, out, s.total_out);
+	hashwrite(pack_file, out, s.total_out);
 	pack_size += s.total_out;
 
 	e->idx.crc32 = crc32_end(pack_file);
@@ -1215,9 +1217,9 @@ static int store_object(
 	return 0;
 }
 
-static void truncate_pack(struct sha1file_checkpoint *checkpoint)
+static void truncate_pack(struct hashfile_checkpoint *checkpoint)
 {
-	if (sha1file_truncate(pack_file, checkpoint))
+	if (hashfile_truncate(pack_file, checkpoint))
 		die_errno("cannot truncate pack to skip duplicate");
 	pack_size = checkpoint->offset;
 }
@@ -1231,9 +1233,9 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark)
 	struct object_id oid;
 	unsigned long hdrlen;
 	off_t offset;
-	git_SHA_CTX c;
+	git_hash_ctx c;
 	git_zstream s;
-	struct sha1file_checkpoint checkpoint;
+	struct hashfile_checkpoint checkpoint;
 	int status = Z_OK;
 
 	/* Determine if we should auto-checkpoint. */
@@ -1241,13 +1243,13 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark)
 		|| (pack_size + 60 + len) < pack_size)
 		cycle_packfile();
 
-	sha1file_checkpoint(pack_file, &checkpoint);
+	hashfile_checkpoint(pack_file, &checkpoint);
 	offset = checkpoint.offset;
 
 	hdrlen = xsnprintf((char *)out_buf, out_sz, "blob %" PRIuMAX, len) + 1;
 
-	git_SHA1_Init(&c);
-	git_SHA1_Update(&c, out_buf, hdrlen);
+	the_hash_algo->init_fn(&c);
+	the_hash_algo->update_fn(&c, out_buf, hdrlen);
 
 	crc32_begin(pack_file);
 
@@ -1265,7 +1267,7 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark)
 			if (!n && feof(stdin))
 				die("EOF in data (%" PRIuMAX " bytes remaining)", len);
 
-			git_SHA1_Update(&c, in_buf, n);
+			the_hash_algo->update_fn(&c, in_buf, n);
 			s.next_in = in_buf;
 			s.avail_in = n;
 			len -= n;
@@ -1275,7 +1277,7 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark)
 
 		if (!s.avail_out || status == Z_STREAM_END) {
 			size_t n = s.next_out - out_buf;
-			sha1write(pack_file, out_buf, n);
+			hashwrite(pack_file, out_buf, n);
 			pack_size += n;
 			s.next_out = out_buf;
 			s.avail_out = out_sz;
@@ -1291,7 +1293,7 @@ static void stream_blob(uintmax_t len, struct object_id *oidout, uintmax_t mark)
 		}
 	}
 	git_deflate_end(&s);
-	git_SHA1_Final(oid.hash, &c);
+	the_hash_algo->final_fn(oid.hash, &c);
 
 	if (oidout)
 		oidcpy(oidout, &oid);
@@ -1350,25 +1352,25 @@ static void *gfi_unpack_entry(
 {
 	enum object_type type;
 	struct packed_git *p = all_packs[oe->pack_id];
-	if (p == pack_data && p->pack_size < (pack_size + 20)) {
+	if (p == pack_data && p->pack_size < (pack_size + the_hash_algo->rawsz)) {
 		/* The object is stored in the packfile we are writing to
 		 * and we have modified it since the last time we scanned
 		 * back to read a previously written object.  If an old
-		 * window covered [p->pack_size, p->pack_size + 20) its
+		 * window covered [p->pack_size, p->pack_size + rawsz) its
 		 * data is stale and is not valid.  Closing all windows
 		 * and updating the packfile length ensures we can read
 		 * the newly written data.
 		 */
 		close_pack_windows(p);
-		sha1flush(pack_file);
+		hashflush(pack_file);
 
-		/* We have to offer 20 bytes additional on the end of
+		/* We have to offer rawsz bytes additional on the end of
 		 * the packfile as the core unpacker code assumes the
 		 * footer is present at the file end and must promise
-		 * at least 20 bytes within any window it maps.  But
+		 * at least rawsz bytes within any window it maps.  But
 		 * we don't actually create the footer here.
 		 */
-		p->pack_size = pack_size + 20;
+		p->pack_size = pack_size + the_hash_algo->rawsz;
 	}
 	return unpack_entry(p, oe->idx.offset, &type, sizep);
 }
@@ -2204,7 +2206,7 @@ static void construct_path_with_fanout(const char *hex_sha1,
 		unsigned char fanout, char *path)
 {
 	unsigned int i = 0, j = 0;
-	if (fanout >= 20)
+	if (fanout >= the_hash_algo->rawsz)
 		die("Too large fanout (%u)", fanout);
 	while (fanout) {
 		path[i++] = hex_sha1[j++];
@@ -2212,8 +2214,8 @@ static void construct_path_with_fanout(const char *hex_sha1,
 		path[i++] = '/';
 		fanout--;
 	}
-	memcpy(path + i, hex_sha1 + j, GIT_SHA1_HEXSZ - j);
-	path[i + GIT_SHA1_HEXSZ - j] = '\0';
+	memcpy(path + i, hex_sha1 + j, the_hash_algo->hexsz - j);
+	path[i + the_hash_algo->hexsz - j] = '\0';
 }
 
 static uintmax_t do_change_note_fanout(
@@ -2421,7 +2423,7 @@ static void file_change_m(const char *p, struct branch *b)
 		else if (oe) {
 			if (oe->type != OBJ_COMMIT)
 				die("Not a commit (actually a %s): %s",
-					typename(oe->type), command_buf.buf);
+					type_name(oe->type), command_buf.buf);
 		}
 		/*
 		 * Accept the sha1 without checking; it expected to be in
@@ -2448,7 +2450,7 @@ static void file_change_m(const char *p, struct branch *b)
 					command_buf.buf);
 		if (type != expected)
 			die("Not a %s (actually a %s): %s",
-				typename(expected), typename(type),
+				type_name(expected), type_name(type),
 				command_buf.buf);
 	}
 
@@ -2599,14 +2601,14 @@ static void note_change_n(const char *p, struct branch *b, unsigned char *old_fa
 	} else if (oe) {
 		if (oe->type != OBJ_BLOB)
 			die("Not a blob (actually a %s): %s",
-				typename(oe->type), command_buf.buf);
+				type_name(oe->type), command_buf.buf);
 	} else if (!is_null_oid(&oid)) {
 		enum object_type type = sha1_object_info(oid.hash, NULL);
 		if (type < 0)
 			die("Blob not found: %s", command_buf.buf);
 		if (type != OBJ_BLOB)
 			die("Not a blob (actually a %s): %s",
-			    typename(type), command_buf.buf);
+			    type_name(type), command_buf.buf);
 	}
 
 	construct_path_with_fanout(oid_to_hex(&commit_oid), *old_fanout, path);
@@ -2914,7 +2916,7 @@ static void parse_new_tag(const char *arg)
 		    "object %s\n"
 		    "type %s\n"
 		    "tag %s\n",
-		    oid_to_hex(&oid), typename(type), t->name);
+		    oid_to_hex(&oid), type_name(type), t->name);
 	if (tagger)
 		strbuf_addf(&new_data,
 			    "tagger %s\n", tagger);
@@ -2985,10 +2987,10 @@ static void cat_blob(struct object_entry *oe, struct object_id *oid)
 		die("Can't read object %s", oid_to_hex(oid));
 	if (type != OBJ_BLOB)
 		die("Object %s is a %s but a blob was expected.",
-		    oid_to_hex(oid), typename(type));
+		    oid_to_hex(oid), type_name(type));
 	strbuf_reset(&line);
 	strbuf_addf(&line, "%s %s %lu\n", oid_to_hex(oid),
-						typename(type), size);
+						type_name(type), size);
 	cat_blob_write(line.buf, line.len);
 	strbuf_release(&line);
 	cat_blob_write(buf, size);