minio/pkg/env/env.go
Harshavardhana 26a866a202
Fix review comments and new changes in config (#8515)
- Migrate and save only settings which are enabled
- Rename logger_http to logger_webhook and
  logger_http_audit to audit_webhook
- No more pretty printing comments, comment
  is a key=value pair now.
- Avoid quotes on values which do not have space in them
- `state="on"` is implicit for all SetConfigKV unless
  specified explicitly as `state="off"`
- Disabled IAM users should be disabled always
2019-11-13 17:38:05 -08:00

65 lines
1.2 KiB
Go

package env
import (
"os"
"strings"
"sync"
)
var (
privateMutex sync.RWMutex
envOff bool
)
// SetEnvOff - turns off env lookup
func SetEnvOff() {
privateMutex.Lock()
defer privateMutex.Unlock()
envOff = true
}
// SetEnvOn - turns on env lookup
func SetEnvOn() {
privateMutex.Lock()
defer privateMutex.Unlock()
envOff = false
}
// IsSet returns if the given env key is set.
func IsSet(key string) bool {
_, ok := os.LookupEnv(key)
return ok
}
// Get retrieves the value of the environment variable named
// by the key. If the variable is present in the environment the
// value (which may be empty) is returned. Otherwise it returns
// the specified default value.
func Get(key, defaultValue string) string {
privateMutex.RLock()
ok := envOff
privateMutex.RUnlock()
if ok {
return defaultValue
}
if v, ok := os.LookupEnv(key); ok {
return v
}
return defaultValue
}
// List all envs with a given prefix.
func List(prefix string) (envs []string) {
for _, env := range os.Environ() {
if strings.HasPrefix(env, prefix) {
values := strings.SplitN(env, "=", 2)
if len(values) == 2 {
envs = append(envs, values[0])
}
}
}
return envs
}