| # Copyright 2018 The LUCI Authors. |
| # |
| # 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. |
| |
| """Generic value validators.""" |
| |
| |
| def _string(attr, val, default='', required=True): |
| if not val: |
| if required: |
| fail('bad %r: missing' % attr) |
| return default |
| if type(val) != 'string': |
| fail('bad %r: not a string' % attr) |
| return val |
| |
| |
| validate = struct( |
| string = _string, |
| ) |
