88 lines
2.0 KiB
Go
88 lines
2.0 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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// Copyright Authors of K9s
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package config
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import (
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"fmt"
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"os"
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"github.com/derailed/k9s/internal/config/data"
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"github.com/derailed/k9s/internal/config/json"
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"gopkg.in/yaml.v2"
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)
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// ViewConfigListener represents a view config listener.
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type ViewConfigListener interface {
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// ViewSettingsChanged notifies listener the view configuration changed.
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ViewSettingsChanged(ViewSetting)
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}
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// ViewSetting represents a view configuration.
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type ViewSetting struct {
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Columns []string `yaml:"columns"`
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SortColumn string `yaml:"sortColumn"`
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}
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// CustomView represents a collection of view customization.
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type CustomView struct {
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Views map[string]ViewSetting `yaml:"views"`
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listeners map[string]ViewConfigListener
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}
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// NewCustomView returns a views configuration.
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func NewCustomView() *CustomView {
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return &CustomView{
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Views: make(map[string]ViewSetting),
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listeners: make(map[string]ViewConfigListener),
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}
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}
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// Reset clears out configurations.
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func (v *CustomView) Reset() {
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for k := range v.Views {
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delete(v.Views, k)
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}
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}
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// Load loads view configurations.
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func (v *CustomView) Load(path string) error {
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bb, err := os.ReadFile(path)
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if err != nil {
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return err
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}
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if err := data.JSONValidator.Validate(json.ViewsSchema, bb); err != nil {
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return fmt.Errorf("validation failed for %q: %w", path, err)
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}
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var in CustomView
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if err := yaml.Unmarshal(bb, &in); err != nil {
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return err
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}
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v.Views = in.Views
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v.fireConfigChanged()
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return nil
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}
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// AddListener registers a new listener.
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func (v *CustomView) AddListener(gvr string, l ViewConfigListener) {
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v.listeners[gvr] = l
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v.fireConfigChanged()
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}
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// RemoveListener unregister a listener.
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func (v *CustomView) RemoveListener(gvr string) {
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delete(v.listeners, gvr)
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}
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func (v *CustomView) fireConfigChanged() {
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for gvr, list := range v.listeners {
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if v, ok := v.Views[gvr]; ok {
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list.ViewSettingsChanged(v)
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} else {
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list.ViewSettingsChanged(ViewSetting{})
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}
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}
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}
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