/
store_env.go
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/
store_env.go
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// Unless explicitly stated otherwise all files in this repository are licensed
// under the Apache License Version 2.0.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2016-present Datadog, Inc.
package parameters
import (
"os"
"strings"
)
var _ valueStore = &envValueStore{}
type envValueStore struct {
prefix string
}
// NewEnvStore creates a new store based on environment variables
func NewEnvStore(prefix string) Store {
return newStore(newEnvValueStore(prefix))
}
func newEnvValueStore(prefix string) envValueStore {
return envValueStore{
prefix: prefix,
}
}
// Get returns parameter value.
// For env Store, the key is upper cased and added to prefix
func (s envValueStore) get(key StoreKey) (string, error) {
envValueStoreKey := strings.ToUpper(s.prefix + string(key))
val, found := os.LookupEnv(strings.ToUpper(envValueStoreKey))
if !found {
return "", ParameterNotFoundError{key: key}
}
return val, nil
}