andrey
01d707ccbf
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28 lines
493 B
Go
28 lines
493 B
Go
package env
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import (
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"context"
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"fmt"
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"os"
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"gitoa.ru/go-4devs/config"
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"gitoa.ru/go-4devs/config/param"
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"gitoa.ru/go-4devs/config/value"
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)
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var _ config.ProcessFunc = Env
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func Env(_ context.Context, in config.Value, _ ...param.Option) (config.Value, error) {
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key, err := in.ParseString()
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if err != nil {
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return in, fmt.Errorf("process[env]:%w", err)
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}
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res, ok := os.LookupEnv(key)
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if !ok {
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return nil, fmt.Errorf("%w", config.ErrNotFound)
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}
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return value.String(res), nil
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}
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