49 lines
817 B
Go
49 lines
817 B
Go
package cli
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import (
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"log"
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"os"
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"os/signal"
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"strconv"
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"syscall"
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)
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func SetDefaultValueFromEnv(value *string, key string, defaultValue string) {
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if os.Getenv(key) != "" {
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*value = os.Getenv(key)
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} else {
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*value = defaultValue
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}
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}
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func SetIntDefaultValueFromEnv(value *int, key string, defaultValue int) error {
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var sVal string
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if os.Getenv(key) != "" {
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sVal = os.Getenv(key)
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val, err := strconv.Atoi(sVal)
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if err != nil {
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log.Printf("unable to convert string to int: %v", err)
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return err
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}
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*value = val
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} else {
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*value = defaultValue
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}
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return nil
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}
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type Part interface {
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Start() error
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Stop()
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}
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func HandleExit(p Part) {
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signals := make(chan os.Signal, 1)
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signal.Notify(signals, os.Kill, os.Interrupt, syscall.SIGTERM)
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go func() {
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<-signals
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p.Stop()
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os.Exit(0)
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}()
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}
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