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yaml.go
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yaml.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package output
import (
"fmt"
"os"
"strings"
"github.com/talos-systems/os-runtime/pkg/resource"
"github.com/talos-systems/os-runtime/pkg/state"
"gopkg.in/yaml.v3"
)
// YAML outputs resources in YAML format.
type YAML struct {
needDashes bool
withEvents bool
}
// NewYAML initializes YAML resource output.
func NewYAML() *YAML {
return &YAML{}
}
// WriteHeader implements output.Writer interface.
func (y *YAML) WriteHeader(definition resource.Resource, withEvents bool) error {
y.withEvents = withEvents
return nil
}
// WriteResource implements output.Writer interface.
func (y *YAML) WriteResource(node string, r resource.Resource, event state.EventType) error {
out, err := resource.MarshalYAML(r)
if err != nil {
return err
}
if y.needDashes {
fmt.Fprintln(os.Stdout, "---")
}
y.needDashes = true
fmt.Fprintf(os.Stdout, "node: %s\n", node)
if y.withEvents {
fmt.Fprintf(os.Stdout, "event: %s\n", strings.ToLower(event.String()))
}
return yaml.NewEncoder(os.Stdout).Encode(out)
}
// Flush implements output.Writer interface.
func (y *YAML) Flush() error {
return nil
}