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watches.go
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watches.go
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// Copyright 2020 The Operator-SDK Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package templates
import (
"fmt"
"sigs.k8s.io/kubebuilder/v2/pkg/model/file"
)
var _ file.Template = &Watches{}
const defaultWatchesFile = "watches.yaml"
// Watches scaffolds the watches.yaml file
type Watches struct {
file.TemplateMixin
}
// SetTemplateDefaults implements input.Template
func (f *Watches) SetTemplateDefaults() error {
if f.Path == "" {
f.Path = defaultWatchesFile
}
f.TemplateBody = fmt.Sprintf(watchesTemplate,
file.NewMarkerFor(f.Path, watchMarker),
)
return nil
}
var _ file.Inserter = &WatchesUpdater{}
type WatchesUpdater struct {
file.TemplateMixin
file.ResourceMixin
ChartPath string
}
func (*WatchesUpdater) GetPath() string {
return defaultWatchesFile
}
func (*WatchesUpdater) GetIfExistsAction() file.IfExistsAction {
return file.Overwrite
}
const (
watchMarker = "watch"
)
func (f *WatchesUpdater) GetMarkers() []file.Marker {
return []file.Marker{
file.NewMarkerFor(defaultWatchesFile, watchMarker),
}
}
func (f *WatchesUpdater) GetCodeFragments() file.CodeFragmentsMap {
fragments := make(file.CodeFragmentsMap, 1)
// If resource is not being provided we are creating the file, not updating it
if f.Resource == nil {
return fragments
}
// Generate watch fragments
watches := make([]string, 0)
watches = append(watches,
fmt.Sprintf(watchFragment, f.Resource.Domain, f.Resource.Version, f.Resource.Kind, f.ChartPath))
if len(watches) != 0 {
fragments[file.NewMarkerFor(defaultWatchesFile, watchMarker)] = watches
}
return fragments
}
const watchFragment = `- group: %s
version: %s
kind: %s
chart: %s
`
const watchesTemplate = `# Use the 'create api' subcommand to add watches to this file.
%s
`