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42 lines
738 B
42 lines
738 B
package yaml
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import (
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"context"
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"fmt"
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"io/ioutil"
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"gitoa.ru/go-4devs/config"
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"gopkg.in/yaml.v3"
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)
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func NewWatch(name string, opts ...Option) *Watch {
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f := Watch{
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file: name,
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prov: create(opts...),
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}
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return &f
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}
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type Watch struct {
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file string
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prov *Provider
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}
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func (p *Watch) Name() string {
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return "yaml_watch"
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}
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func (p *Watch) Read(ctx context.Context, key config.Key) (config.Variable, error) {
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in, err := ioutil.ReadFile(p.file)
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if err != nil {
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return config.Variable{}, fmt.Errorf("yaml_file: read error: %w", err)
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}
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var n yaml.Node
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if err = yaml.Unmarshal(in, &n); err != nil {
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return config.Variable{}, fmt.Errorf("yaml_file: unmarshal error: %w", err)
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}
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return p.prov.With(&n).Read(ctx, key)
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}
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