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Add flag env helpers #7

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merged 1 commit into from
Nov 27, 2023
Merged

Add flag env helpers #7

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47 changes: 47 additions & 0 deletions pkg/flagenv/flagenv.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,47 @@
package flagenv

import (
"os"
"strconv"
"time"
)

func StringEnvWithDefault(key, defaultValue string) string {
if envValue, ok := os.LookupEnv(key); !ok {
return defaultValue
} else {
return envValue
}
}

func BoolEnvWithDefault(key string, defaultValue bool) bool {
if envValue, ok := os.LookupEnv(key); !ok {
return defaultValue
} else {
return envValue == "true"
}
}

func IntEnvWithDefault(key string, defaultValue int) int {
if envValue, ok := os.LookupEnv(key); !ok {
return defaultValue
} else {
v, err := strconv.Atoi(envValue)
if err != nil {
panic("invalid int env:" + key)
}
return v
}
}

func DurationEnvWithDefault(key string, defaultValue time.Duration) time.Duration {
if envValue, ok := os.LookupEnv(key); !ok {
return defaultValue
} else {
v, err := time.ParseDuration(envValue)
if err != nil {
panic("invalid duation env:" + key)
}
return v
}
}