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59 lines
1.0 KiB
Go
59 lines
1.0 KiB
Go
package utils
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import (
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"log"
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"math/rand"
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"os"
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"strings"
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"sync"
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"time"
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"github.com/joho/godotenv"
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)
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type Env struct {
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value map[string]string
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mu sync.Mutex
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}
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var env *Env
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func init() {
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env = &Env{value: map[string]string{}}
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}
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func GenerateRandomString(length int) string {
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const charset = "abcdefghijklmnopqrstuvwxyz"
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seededRand := rand.New(rand.NewSource(time.Now().UnixNano() + int64(rand.Intn(9999))))
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var result strings.Builder
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for i := 0; i < length; i++ {
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randomIndex := seededRand.Intn(len(charset))
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result.WriteString(string(charset[randomIndex]))
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}
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return result.String()
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}
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func Getenv(key string) string {
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env.mu.Lock()
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defer env.mu.Unlock()
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if val, ok := env.value[key]; ok {
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return val
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}
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if os.Getenv("HOSTNAME") == "" {
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err := godotenv.Load(".env")
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if err != nil {
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log.Fatalf("Error loading .env file: %s", err)
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}
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}
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val := os.Getenv(key)
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env.value[key] = val
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if val == "" {
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panic("Asking for env: " + key + " but got nothing, please set your environment first")
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}
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return val
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}
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