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compose
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Refactor extends back out of __init__ 

If make_service_dict is our factory function then we'll give it the
responsibility of validation/construction and resolving.

Signed-off-by: Mazz Mosley <mazz@houseofmnowster.com>
This commit is contained in:
Mazz Mosley 2015-09-01 16:14:02 +01:00
parent 9fa6e42f55
commit 4b487e3957
1 changed files with 31 additions and 36 deletions
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65
compose/config/config.py
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@ -170,41 +170,17 @@ class ServiceLoader(object):
self.filename = filename
self.already_seen = already_seen or []
self.service_dict = service_dict.copy()
self.service_name = service_name
self.service_dict['name'] = service_name
self.resolve_environment()
if 'extends' in self.service_dict:
validate_extends_file_path(
service_name,
self.service_dict['extends'],
self.filename
)
self.extended_config_path = self.get_extended_config_path(
self.service_dict['extends']
)
self.extended_service_name = self.service_dict['extends']['service']
full_extended_config = pre_process_config(
load_yaml(self.extended_config_path)
)
validate_extended_service_exists(
self.extended_service_name,
full_extended_config,
self.extended_config_path
)
validate_against_fields_schema(full_extended_config)
self.extended_config = full_extended_config[self.extended_service_name]
else:
self.extended_config = None
def detect_cycle(self, name):
if self.signature(name) in self.already_seen:
raise CircularReference(self.already_seen + [self.signature(name)])
def make_service_dict(self):
self.resolve_environment()
if 'extends' in self.service_dict:
self.validate_and_construct_extends()
self.service_dict = self.resolve_extends()
if not self.already_seen:
@ -232,19 +208,38 @@ class ServiceLoader(object):
self.service_dict['environment'] = env
def validate_and_construct_extends(self):
validate_extends_file_path(
self.service_name,
self.service_dict['extends'],
self.filename
)
self.extended_config_path = self.get_extended_config_path(
self.service_dict['extends']
)
self.extended_service_name = self.service_dict['extends']['service']
full_extended_config = pre_process_config(
load_yaml(self.extended_config_path)
)
validate_extended_service_exists(
self.extended_service_name,
full_extended_config,
self.extended_config_path
)
validate_against_fields_schema(full_extended_config)
self.extended_config = full_extended_config[self.extended_service_name]
def resolve_extends(self):
if self.extended_config is None:
return self.service_dict
service_name = self.service_dict['name']
other_working_dir = os.path.dirname(self.extended_config_path)
other_already_seen = self.already_seen + [self.signature(service_name)]
other_already_seen = self.already_seen + [self.signature(self.service_name)]
other_loader = ServiceLoader(
working_dir=other_working_dir,
filename=self.extended_config_path,
service_name=service_name,
service_name=self.service_name,
service_dict=self.extended_config,
already_seen=other_already_seen,
)