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// Code created by gotmpl. DO NOT MODIFY.
// source: internal/shared/internaltest/env.go.tmpl
// Copyright The OpenTelemetry 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 internaltest // import "go.opentelemetry.io/otel/internal/internaltest"
import (
"os"
)
type Env struct {
Name string
Value string
Exists bool
}
// EnvStore stores and recovers environment variables.
type EnvStore interface {
// Records the environment variable into the store.
Record(key string)
// Restore recovers the environment variables in the store.
Restore() error
}
var _ EnvStore = (*envStore)(nil)
type envStore struct {
store map[string]Env
}
func (s *envStore) add(env Env) {
s.store[env.Name] = env
}
func (s *envStore) Restore() error {
var err error
for _, v := range s.store {
if v.Exists {
err = os.Setenv(v.Name, v.Value)
} else {
err = os.Unsetenv(v.Name)
}
if err != nil {
return err
}
}
return nil
}
func (s *envStore) setEnv(key, value string) error {
s.Record(key)
err := os.Setenv(key, value)
if err != nil {
return err
}
return nil
}
func (s *envStore) Record(key string) {
originValue, exists := os.LookupEnv(key)
s.add(Env{
Name: key,
Value: originValue,
Exists: exists,
})
}
func NewEnvStore() EnvStore {
return newEnvStore()
}
func newEnvStore() *envStore {
return &envStore{store: make(map[string]Env)}
}
func SetEnvVariables(env map[string]string) (EnvStore, error) {
envStore := newEnvStore()
for k, v := range env {
err := envStore.setEnv(k, v)
if err != nil {
return nil, err
}
}
return envStore, nil
}
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