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util-env.go
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util-env.go
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/*
* Copyright (c) 2022, Andy Pangaribuan <https://github.com/apangaribuan>.
* All Rights Reserved.
*/
package util
import (
"encoding/base64"
"log"
"os"
"strconv"
"strings"
"github.com/andypangaribuan/project9/abs"
"github.com/andypangaribuan/project9/act/actenv"
"github.com/andypangaribuan/project9/p9"
)
var zxEnv map[string]string
func init() {
zxEnv = make(map[string]string, 0)
}
func getFromZXEnv(key string) string {
if len(zxEnv) > 0 {
return zxEnv[key]
}
value := os.Getenv(p9.Conf.K8sEnvName)
if value == "" {
return ""
}
lines := strings.Split(value, "\n")
for _, line := range lines {
line = strings.TrimSpace(line)
eqIdx := strings.Index(line, "=")
if line == "" || line[:1] == "#" || eqIdx < 1 {
continue
}
key := strings.TrimSpace(line[:eqIdx])
val := strings.TrimSpace(line[eqIdx+1:])
if key != "" && val != "" {
zxEnv[key] = val
}
}
return zxEnv[key]
}
func getEnvDefault[T any](key string, defaultValue ...T) (string, *T) {
value := getFromZXEnv(key)
if value == "" {
value = strings.TrimSpace(os.Getenv(key))
}
switch {
case value == "" && len(defaultValue) > 0:
return value, &defaultValue[0]
case value == "":
log.Fatalf(`env key "%v" doesn't exists'`, key)
}
return value, nil
}
func (slf *srEnv) GetAppEnv(key string) actenv.AppEnv {
return &srAppEnv{
Value: slf.GetStr(key),
}
}
func (*srEnv) GetStr(key string, defaultValue ...string) string {
strVal, val := getEnvDefault(key, defaultValue...)
if val != nil {
return *val
}
return strVal
}
func (slf *srEnv) GetInt(key string, defaultValue ...int) int {
strVal, val := getEnvDefault(key, defaultValue...)
if val != nil {
return *val
}
value, err := strconv.Atoi(strVal)
if err != nil {
log.Fatalf("env key \"%v\" is not int value\nerror:\n%+v", key, err)
}
return value
}
func (slf *srEnv) GetInt32(key string, defaultValue ...int32) int32 {
strVal, val := getEnvDefault(key, defaultValue...)
if val != nil {
return *val
}
value, err := strconv.ParseInt(strVal, 10, 32)
if err != nil {
log.Fatalf(`env key "%v" is not int value\nerror:\n%v`, key, err)
}
return int32(value)
}
func (slf *srEnv) GetInt64(key string, defaultValue ...int64) int64 {
strVal, val := getEnvDefault(key, defaultValue...)
if val != nil {
return *val
}
value, err := strconv.ParseInt(strVal, 10, 64)
if err != nil {
log.Fatalf(`env key "%v" is not int value\nerror:\n%v`, key, err)
}
return value
}
func (slf *srEnv) GetFloat32(key string, defaultValue ...float32) float32 {
strVal, val := getEnvDefault(key, defaultValue...)
if val != nil {
return *val
}
value, err := strconv.ParseFloat(strVal, 32)
if err != nil {
log.Fatalf("env key \"%v\" is not float32 value\nerror:\n%v", key, err)
}
return float32(value)
}
func (slf *srEnv) GetFloat64(key string, defaultValue ...float64) float64 {
strVal, val := getEnvDefault(key, defaultValue...)
if val != nil {
return *val
}
value, err := strconv.ParseFloat(strVal, 64)
if err != nil {
log.Fatalf("env key \"%v\" is not float64 value\nerror:\n%v", key, err)
}
return value
}
func (slf *srEnv) GetBool(key string, defaultValue ...bool) bool {
strVal, val := getEnvDefault(key, defaultValue...)
if val != nil {
return *val
}
switch strings.ToLower(strVal) {
case "1", "true":
return true
case "0", "false":
return false
}
log.Fatalf("env key \"%v\", from key env key \"%v\" is not a valid boolean value", strVal, key)
return false
}
func (slf *srEnv) GetBase64(key string) abs.UtilEnvBase64 {
value := slf.GetStr(key)
data, err := base64.StdEncoding.DecodeString(value)
if err != nil {
log.Fatalf("env key \"%v\" is not base64 value\nerror:\n%+v", key, err)
}
return &srEnvBase64{
key: key,
data: data,
}
}
func (slf *srEnvBase64) Key() string {
return slf.key
}
func (slf *srEnvBase64) Data() []byte {
return slf.data
}
func (slf *srEnvBase64) String() string {
return string(slf.data)
}
func (slf *srAppEnv) value() string {
return strings.ToLower(slf.Value)
}
func (slf *srAppEnv) IsProd() bool {
val := slf.value()
return val == "prod" || val == "production"
}
func (slf *srAppEnv) IsStg() bool {
val := slf.value()
return val == "stg" || val == "staging"
}
func (slf *srAppEnv) IsDev() bool {
val := slf.value()
return val == "dev" || val == "development"
}
func (slf *srAppEnv) IsSandbox() bool {
val := slf.value()
return val == "sbx" || val == "sandbox"
}