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74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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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 plugins
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import (
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"fmt"
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"strings"
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)
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// Plugin is the representation of a CLI extension (plugin).
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type Plugin struct {
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Description
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Source
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Context RunningContext `json:"-"`
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}
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// PluginDescription holds everything needed to register a
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// plugin as a command. Usually comes from a descriptor file.
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type Description struct {
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Name string `json:"name"`
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ShortDesc string `json:"shortDesc"`
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LongDesc string `json:"longDesc,omitempty"`
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Example string `json:"example,omitempty"`
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Command string `json:"command"`
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Tree []*Plugin `json:"tree,omitempty"`
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}
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// PluginSource holds the location of a given plugin in the filesystem.
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type Source struct {
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Dir string `json:"-"`
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DescriptorName string `json:"-"`
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}
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var (
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IncompleteError = fmt.Errorf("incomplete plugin descriptor: name, shortDesc and command fields are required")
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InvalidNameError = fmt.Errorf("plugin name can't contain spaces")
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)
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func (p Plugin) Validate() error {
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if len(p.Name) == 0 || len(p.ShortDesc) == 0 || (len(p.Command) == 0 && len(p.Tree) == 0) {
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return IncompleteError
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}
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if strings.Index(p.Name, " ") > -1 {
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return InvalidNameError
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}
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for _, child := range p.Tree {
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if err := child.Validate(); err != nil {
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return err
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}
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}
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return nil
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}
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func (p Plugin) IsValid() bool {
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return p.Validate() == nil
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}
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// Plugins is a list of plugins.
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type Plugins []*Plugin
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