| #!/usr/bin/env python3 | |
| # Copyright (C) 2023 The Android Open Source Project | |
| # | |
| # 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. | |
| """ | |
| Enforce import rules for https://ui.perfetto.dev. | |
| Directory structure encodes ideas about the expected dependency graph | |
| of the code in those directories. Both in a fuzzy sense: we expect code | |
| withing a directory to have high cohesion within the directory and low | |
| coupling (aka fewer imports) outside of the directory - but also | |
| concrete rules: | |
| - "base should not depend on the fronted" | |
| - "plugins should only directly depend on the public API" | |
| - "we should not have circular dependencies" | |
| Without enforcement exceptions to this rule quickly slip in. This | |
| script allows such rules to be enforced at presubmit time. | |
| """ |