You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
38 lines
1.1 KiB
38 lines
1.1 KiB
/*
|
|
* Copyright ConsenSys AG.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
|
|
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
|
* specific language governing permissions and limitations under the License.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
pragma solidity >=0.6.0 <0.9.0;
|
|
|
|
|
|
contract Migrations {
|
|
address public owner;
|
|
uint public last_completed_migration;
|
|
|
|
modifier restricted() {
|
|
if (msg.sender == owner) _;
|
|
}
|
|
|
|
constructor() public {
|
|
owner = msg.sender;
|
|
}
|
|
|
|
function setCompleted(uint completed) public restricted {
|
|
last_completed_migration = completed;
|
|
}
|
|
|
|
function upgrade(address new_address) public restricted {
|
|
Migrations upgraded = Migrations(new_address);
|
|
upgraded.setCompleted(last_completed_migration);
|
|
}
|
|
}
|
|
|