mirror of https://github.com/k3s-io/k3s
52 lines
1.6 KiB
Go
52 lines
1.6 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 rkt
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import (
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"fmt"
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"strings"
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)
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// image stores the appc image information.
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// TODO(yifan): Replace with schema.ImageManifest.
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type image struct {
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// The hash of the image, it must be universal unique. (e.g. sha512-xxx)
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id string
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// The name of the image manifest.
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name string
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// The version of the image. (e.g. v2.0.8, latest)
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version string
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}
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// parseString creates the image struct by parsing the string in the result of 'rkt images',
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// the input looks like:
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//
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// sha512-91e98d7f1679a097c878203c9659f2a26ae394656b3147963324c61fa3832f15 coreos.com/etcd:v2.0.9
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//
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func (im *image) parseString(input string) error {
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idName := strings.Split(input, "\t")
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if len(idName) != 2 {
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return fmt.Errorf("invalid image information from 'rkt images': %q", input)
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}
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nameVersion := strings.Split(idName[1], ":")
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if len(nameVersion) != 2 {
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return fmt.Errorf("cannot parse the app name: %q", nameVersion)
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}
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im.id, im.name, im.version = idName[0], nameVersion[0], nameVersion[1]
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return nil
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}
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