vendor files

vendor/k8s.io/kubernetes/pkg/util/env/env.go

@@ -0,0 +1,51 @@
+/*
+Copyright 2015 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package env
+
+import (
+	"os"
+	"strconv"
+)
+
+func GetEnvAsStringOrFallback(key, defaultValue string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return defaultValue
+}
+
+func GetEnvAsIntOrFallback(key string, defaultValue int) (int, error) {
+	if v := os.Getenv(key); v != "" {
+		value, err := strconv.Atoi(v)
+		if err != nil {
+			return defaultValue, err
+		}
+		return value, nil
+	}
+	return defaultValue, nil
+}
+
+func GetEnvAsFloat64OrFallback(key string, defaultValue float64) (float64, error) {
+	if v := os.Getenv(key); v != "" {
+		value, err := strconv.ParseFloat(v, 64)
+		if err != nil {
+			return defaultValue, err
+		}
+		return value, nil
+	}
+	return defaultValue, nil
+}