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atomic/Atomic/objects/layer.py
Brent Baude c7aafb3314 Refactor Pull, Update, Install, Run
Refactor several of the atomic verbs and subverbs to take advantage
of object refactoring.

Also, do not pull images with skopeo if the local image is already
at the latest.

$ sudo python ./atomic --debug pull busybox
Namespace(_class=<class 'Atomic.pull.Pull'>, assumeyes=False, debug=True, func='pull_image', image='busybox', reg_type=None, storage='docker')
Latest version of busybox already present.

Closes: #825
Approved by: baude
2017-01-17 22:16:36 +00:00

66 lines
2.0 KiB
Python

from Atomic.util import output_json
from Atomic.client import no_shaw
class Layer(object):
def __init__(self, img_input):
self.id = None
self.name = None
self.version = None
self.release = None
self.repotags = None
self.parent = None
self.remote = False
self.digest = None
self.backend = None
if type(img_input) is dict:
pass
else:
self._instantiate_from_image_object(img_input)
def _instantiate_from_image_object(self, img_obj):
self.id = img_obj.id
self.name = img_obj.get_label('Name') or img_obj.name or img_obj.image
self.remote = img_obj.remote
self.version = img_obj.version
self.release = img_obj.release
self.repotags = img_obj.repotags
# This needs to be resolved for future docker versions
self.parent = img_obj.parent
self.digest = img_obj.digest
self.backend = img_obj.backend
return self
def _instantiate_from_dict(self):
return self
def __eq__(self, other):
if self.long_version == other.long_version:
return True
return False
def __ne__(self, other):
if self.long_version != other.long_version:
return True
return False
def dump(self):
# helper function to dump out known variables/values in pretty-print style
class_vars = dict(vars(self))
foo = {x: class_vars[x] for x in class_vars if not callable(getattr(self, x)) and not x.startswith('__')
and not x.endswith('_backend')}
output_json(foo)
@property
def long_version(self):
_version = ""
if self.version:
_version += "{}".format(self.version)
if self.release:
if self.version:
_version += "-"
_version += "{}".format(self.release)
if not _version:
return no_shaw(self.id or self.digest)
return _version