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how about a shutdown-hook? #5
Description
if we run app in docker container, when container stops, docker engine will send a signal (SIGTERM) (value: 15) to the process which pid equals 1.
how a about we add shutdown-hook to thego-cli. example:
app := cli.NewApp()
app.OnTerm = func (sigValue int) {
fmt.Println("关闭文件")
}here is a tip shows how golang handle signals:
package main
import (
"fmt"
"os"
"os/signal"
"syscall"
)
func main() {
fmt.Println("pid is ", os.Getpid())
sigs := make(chan os.Signal, 1)
exit := make(chan bool, 1)
signal.Notify(sigs, syscall.SIGTERM)
go func() {
select {
case <-sigs:
fmt.Println("关闭文件")
exit <- true
}
}()
select {
case <-exit:
break
}
close(sigs)
close(exit)
}
Activity
yingzhuo commentedon Dec 9, 2019
see here pls.
subchen commentedon Dec 9, 2019
Good point, let me port it from your fork.
yingzhuo commentedon Dec 9, 2019
Here is example to show how stop the app gracefully. :)