airbyte-ci: defensive programming (airbytehq#34607)

Author: Marius Posta

airbyte-ci/connectors/pipelines/README.md

@@ -597,6 +597,7 @@ E.G.: running `pytest` on a specific test folder:
 
 | Version | PR                                                         | Description                                                                                                                |
 | ------- | ---------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
+| 3.8.1   | [#34607](https://github.com/airbytehq/airbyte/pull/34607)  | Improve gradle dependency cache volume protection.                                                                         |
 | 3.8.0   | [#34316](https://github.com/airbytehq/airbyte/pull/34316)  | Expose Dagger engine image name in `--ci-requirements` and add `--ci-requirements` to the `airbyte-ci` root command group. |
 | 3.7.3   | [#34560](https://github.com/airbytehq/airbyte/pull/34560)  | Simplify Gradle task execution framework by removing local maven repo support.                                             |
 | 3.7.2   | [#34555](https://github.com/airbytehq/airbyte/pull/34555)  | Override secret masking in some very specific special cases.                                                               |

airbyte-ci/connectors/pipelines/pipelines/airbyte_ci/steps/gradle.py

@@ -151,6 +151,8 @@ async def _run(self, *args: Any, **kwargs: Any) -> StepResult:
             .with_exec(
                 sh_dash_c(
                     [
+                        # Defensively delete the gradle home directory to avoid dirtying the cache volume.
+                        f"rm -rf {self.GRADLE_HOME_PATH}",
                         # Load from the cache volume.
                         f"(rsync -a --stats --mkpath {self.GRADLE_DEP_CACHE_PATH}/ {self.GRADLE_HOME_PATH} || true)",
                         # Resolve all dependencies and write their checksums to './gradle/verification-metadata.dryrun.xml'.

airbyte-ci/connectors/pipelines/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "pipelines"
-version = "3.8.0"
+version = "3.8.1"
 description = "Packaged maintained by the connector operations team to perform CI for connectors' pipelines"
 authors = ["Airbyte <[email protected]>"]