79 lines
2.8 KiB
Python
79 lines
2.8 KiB
Python
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class Storage(object):
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"""Storage is organized as follow:
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$ROOT/images/<image_id>/json
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$ROOT/images/<image_id>/layer
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$ROOT/repositories/<namespace>/<repository_name>/<tag_name>
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"""
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# Useful if we want to change those locations later without rewriting
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# the code which uses Storage
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repositories = 'repositories'
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images = 'images'
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# Set the IO buffer to 64kB
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buffer_size = 64 * 1024
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#FIXME(samalba): Move all path resolver in each module (out of the base)
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def images_list_path(self, namespace, repository):
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return '{0}/{1}/{2}/_images_list'.format(self.repositories,
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namespace,
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repository)
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def image_json_path(self, namespace, repository, image_id):
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return '{0}/{1}/{2}/{3}/json'.format(self.images, namespace,
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repository, image_id)
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def image_mark_path(self, namespace, repository, image_id):
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return '{0}/{1}/{2}/{3}/_inprogress'.format(self.images, namespace,
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repository, image_id)
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def image_checksum_path(self, namespace, repository, image_id):
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return '{0}/{1}/{2}/{3}/_checksum'.format(self.images, namespace,
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repository, image_id)
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def image_layer_path(self, namespace, repository, image_id):
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return '{0}/{1}/{2}/{3}/layer'.format(self.images, namespace,
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repository, image_id)
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def image_ancestry_path(self, namespace, repository, image_id):
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return '{0}/{1}/{2}/{3}/ancestry'.format(self.images, namespace,
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repository, image_id)
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def repository_namespace_path(self, namespace, repository):
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return '{0}/{1}/{2}/'.format(self.images, namespace, repository)
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def image_file_trie_path(self, namespace, repository, image_id):
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return '{0}/{1}/{2}/{3}/files.trie'.format(self.images, namespace,
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repository, image_id)
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def image_file_diffs_path(self, namespace, repository, image_id):
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return '{0}/{1}/{2}/{3}/diffs.json'.format(self.images, namespace,
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repository, image_id)
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def get_content(self, path):
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raise NotImplementedError
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def put_content(self, path, content):
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raise NotImplementedError
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def stream_read(self, path):
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raise NotImplementedError
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def stream_read_file(self, path):
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raise NotImplementedError
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def stream_write(self, path, fp):
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raise NotImplementedError
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def list_directory(self, path=None):
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raise NotImplementedError
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def exists(self, path):
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raise NotImplementedError
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def remove(self, path):
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raise NotImplementedError
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def get_size(self, path):
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raise NotImplementedError
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