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package yaml
import (
"context"
"fmt"
"os"
"gitoa.ru/go-4devs/config"
"gopkg.in/yaml.v3"
)
const NameWatch = "yaml_watch"
func NewWatch(name string, opts ...Option) *Watch {
wath := Watch{
file: name,
prov: create(opts...),
name: NameWatch,
}
return &wath
}
type Watch struct {
file string
prov *Provider
name string
}
func (p *Watch) Name() string {
return p.name
}
func (p *Watch) Value(ctx context.Context, path ...string) (config.Value, error) {
in, err := os.ReadFile(p.file)
if err != nil {
return nil, fmt.Errorf("yaml_file: read error: %w", err)
}
var yNode yaml.Node
if err = yaml.Unmarshal(in, &yNode); err != nil {
return nil, fmt.Errorf("yaml_file: unmarshal error: %w", err)
}
return p.prov.With(&yNode).Value(ctx, path...)
}