Move chmod(foo, 0444) into move_temp_to_file()

When writing out a loose object or a pack (index), move_temp_to_file() is
called to finalize the resulting file. These files (loose files and packs)
should all have permission mode 0444 (modulo adjust_shared_perm()).
Therefore, instead of doing chmod(foo, 0444) explicitly from each callsite
(or even forgetting to chmod() at all), do the chmod() call from within
move_temp_to_file().

Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

fast-import.c

@@ -902,9 +902,6 @@ static char *keep_pack(char *curr_index_name)
 	static const char *keep_msg = "fast-import";
 	int keep_fd;
 
-	chmod(pack_data->pack_name, 0444);
-	chmod(curr_index_name, 0444);
-
 	keep_fd = odb_pack_keep(name, sizeof(name), pack_data->sha1);
 	if (keep_fd < 0)
 		die("cannot create keep file");

http-push.c

@@ -748,7 +748,6 @@ static void finish_request(struct transfer_request *request)
 			aborted = 1;
 		}
 	} else if (request->state == RUN_FETCH_LOOSE) {
-		fchmod(request->local_fileno, 0444);
 		close(request->local_fileno); request->local_fileno = -1;
 
 		if (request->curl_result != CURLE_OK &&

http-walker.c

@@ -231,7 +231,6 @@ static void finish_object_request(struct object_request *obj_req)
 {
 	struct stat st;
 
-	fchmod(obj_req->local, 0444);
 	close(obj_req->local); obj_req->local = -1;
 
 	if (obj_req->http_code == 416) {

index-pack.c

@@ -823,8 +823,7 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
 		}
 		if (move_temp_to_file(curr_pack_name, final_pack_name))
 			die("cannot store pack file");
-	}
+	} else if (from_stdin)
-	if (from_stdin)
 		chmod(final_pack_name, 0444);
 
 	if (final_index_name != curr_index_name) {
@@ -835,8 +834,8 @@ static void final(const char *final_pack_name, const char *curr_pack_name,
 		}
 		if (move_temp_to_file(curr_index_name, final_index_name))
 			die("cannot store index file");
-	}
+	} else
-	chmod(final_index_name, 0444);
+		chmod(final_index_name, 0444);
 
 	if (!from_stdin) {
 		printf("%s\n", sha1_to_hex(sha1));

sha1_file.c

@@ -2279,7 +2279,7 @@ int move_temp_to_file(const char *tmpfile, const char *filename)
 		/* FIXME!!! Collision check here ? */
 	}
 
-	if (adjust_shared_perm(filename))
+	if (chmod(filename, 0444) || adjust_shared_perm(filename))
 		return error("unable to set permission to '%s'", filename);
 	return 0;
 }
@@ -2305,7 +2305,6 @@ static void close_sha1_file(int fd)
 {
 	if (fsync_object_files)
 		fsync_or_die(fd, "sha1 file");
-	fchmod(fd, 0444);
 	if (close(fd) != 0)
 		die("error when closing sha1 file (%s)", strerror(errno));
 }