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utils.go
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/
utils.go
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package config
import (
"log"
"os"
"strconv"
)
// LookupEnvOrString looks up a flag env that is a string
func LookupEnvOrString(key string, defaultVal string) string {
if val, ok := os.LookupEnv(key); ok {
return val
}
return defaultVal
}
// LookupEnvOrInt looks up a flag env that is an integer
func LookupEnvOrInt(key string, defaultVal int) int {
if val, ok := os.LookupEnv(key); ok {
v, err := strconv.Atoi(val)
if err != nil {
log.Fatalf("unable to lookupEnvOrInt[%s]: %v", key, err)
}
return v
}
return defaultVal
}
// LookupEnvOrInt64 looks up a flag env that is an integer
func LookupEnvOrInt64(key string, defaultVal int64) int64 {
if val, ok := os.LookupEnv(key); ok {
v, err := strconv.ParseInt(val, 10, 64)
if err != nil {
log.Fatalf("unable to lookupEnvOrInt[%s]: %v", key, err)
}
return v
}
return defaultVal
}