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68 lines
2.3 KiB
68 lines
2.3 KiB
// Copyright 2018 Google LLC All Rights Reserved.
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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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package v1
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import (
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"encoding/json"
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"io"
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"github.com/google/go-containerregistry/pkg/v1/types"
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)
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// Manifest represents the OCI image manifest in a structured way.
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type Manifest struct {
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SchemaVersion int64 `json:"schemaVersion"`
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MediaType types.MediaType `json:"mediaType,omitempty"`
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Config Descriptor `json:"config"`
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Layers []Descriptor `json:"layers"`
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Annotations map[string]string `json:"annotations,omitempty"`
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}
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// IndexManifest represents an OCI image index in a structured way.
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type IndexManifest struct {
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SchemaVersion int64 `json:"schemaVersion"`
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MediaType types.MediaType `json:"mediaType,omitempty"`
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Manifests []Descriptor `json:"manifests"`
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Annotations map[string]string `json:"annotations,omitempty"`
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}
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// Descriptor holds a reference from the manifest to one of its constituent elements.
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type Descriptor struct {
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MediaType types.MediaType `json:"mediaType"`
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Size int64 `json:"size"`
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Digest Hash `json:"digest"`
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Data []byte `json:"data,omitempty"`
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URLs []string `json:"urls,omitempty"`
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Annotations map[string]string `json:"annotations,omitempty"`
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Platform *Platform `json:"platform,omitempty"`
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}
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// ParseManifest parses the io.Reader's contents into a Manifest.
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func ParseManifest(r io.Reader) (*Manifest, error) {
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m := Manifest{}
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if err := json.NewDecoder(r).Decode(&m); err != nil {
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return nil, err
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}
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return &m, nil
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}
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// ParseIndexManifest parses the io.Reader's contents into an IndexManifest.
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func ParseIndexManifest(r io.Reader) (*IndexManifest, error) {
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im := IndexManifest{}
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if err := json.NewDecoder(r).Decode(&im); err != nil {
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return nil, err
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}
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return &im, nil
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}
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