| from __future__ import absolute_import |
| from __future__ import unicode_literals |
| |
| |
| VERSION_EXPLANATION = ( |
| 'You might be seeing this error because you\'re using the wrong Compose ' |
| 'file version. Either specify a version of "2" (or "2.0") and place your ' |
| 'service definitions under the `services` key, or omit the `version` key ' |
| 'and place your service definitions at the root of the file to use ' |
| 'version 1.\nFor more on the Compose file format versions, see ' |
| 'https://docs.docker.com/compose/compose-file/') |
| |
| |
| class ConfigurationError(Exception): |
| def __init__(self, msg): |
| self.msg = msg |
| |
| def __str__(self): |
| return self.msg |
| |
| |
| class DependencyError(ConfigurationError): |
| pass |
| |
| |
| class CircularReference(ConfigurationError): |
| def __init__(self, trail): |
| self.trail = trail |
| |
| @property |
| def msg(self): |
| lines = [ |
| "{} in {}".format(service_name, filename) |
| for (filename, service_name) in self.trail |
| ] |
| return "Circular reference:\n {}".format("\n extends ".join(lines)) |
| |
| |
| class ComposeFileNotFound(ConfigurationError): |
| def __init__(self, supported_filenames): |
| super(ComposeFileNotFound, self).__init__(""" |
| Can't find a suitable configuration file in this directory or any |
| parent. Are you in the right directory? |
| |
| Supported filenames: %s |
| """ % ", ".join(supported_filenames)) |
