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https://github.com/openSUSE/umoci.git
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e3ebb56fab
They were missing and it's probably a good idea to include them, purely to make legal review less of a pain. Signed-off-by: Aleksa Sarai <asarai@suse.de>
48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
/*
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* umoci: Umoci Modifies Open Containers' Images
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* Copyright (C) 2018 Cisco Systems
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package umoci
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import (
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"github.com/openSUSE/umoci/oci/cas/dir"
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"github.com/openSUSE/umoci/oci/casext"
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"github.com/pkg/errors"
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)
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// OpenLayout opens an existing OCI image layout, and fails if it does not
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// exist.
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func OpenLayout(imagePath string) (casext.Engine, error) {
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// Get a reference to the CAS.
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engine, err := dir.Open(imagePath)
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if err != nil {
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return casext.Engine{}, errors.Wrap(err, "open CAS")
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}
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return casext.NewEngine(engine), nil
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}
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// CreateLayout creates an existing OCI image layout, and fails if it already
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// exists.
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func CreateLayout(imagePath string) (casext.Engine, error) {
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err := dir.Create(imagePath)
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if err != nil {
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return casext.Engine{}, err
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}
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return OpenLayout(imagePath)
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}
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