| from twitter.mysos.executor.installer import PackageInstaller, PackageInstallerProvider |
| |
| |
| class NoopPackageInstaller(PackageInstaller): |
| """ |
| An installer that doesn't actually install the package. |
| |
| It can be used when the host has dependent packages (i.e. MySQL) pre-installed and its upgrades |
| managed externally. |
| """ |
| |
| def install(self): |
| return None # No environment variables to pass along to the task sub-processes. |
| |
| |
| class NoopPackageInstallerProvider(PackageInstallerProvider): |
| def from_task(self, task, sandbox): |
| return NoopPackageInstaller() |
