57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
package config
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import (
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"log"
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"os"
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"strconv"
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)
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// getEnv returns value for give key from environment
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// if key is not present in environment it returns defaultValue
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func getEnv(key, defaultValue string) string {
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v := os.Getenv(key)
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if len(v) > 0 {
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return v
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}
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return defaultValue
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}
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// getEnvInt returns integer value for give key from environment
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// if key is not present in environment it returns defaultValue
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// if key cannot be parsed to integer function will panic
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func getEnvInt(key string, defaultValue int) int {
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v := os.Getenv(key)
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if len(v) == 0 {
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return defaultValue
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}
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valInteger, err := strconv.Atoi(v)
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if err != nil {
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log.Fatalf("variable `%s` cannot be parsed to INTEGER", key)
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}
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return valInteger
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}
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// getEnv extracts the bool value from environment variable
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func getEnvBool(env string) bool {
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envVal := mustGetEnv(env)
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value, err := strconv.ParseBool(envVal)
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if err != nil {
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value = false
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}
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return value
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}
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// mustGetEnv returns value for give key from environment
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// if key is not present in environment function will panic
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func mustGetEnv(key string) string {
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v := os.Getenv(key)
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if len(v) == 0 {
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log.Fatalf(" variable `%s` is not present in ENVIRONMENT", key)
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}
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return v
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}
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