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package argvpb
import (
"fmt"
"os"
"time"
"go.wit.com/lib/cobol"
)
// since we know when the command starts (duh, this parses os.Args)
// this is a convienent way to provide a standard exit format back
// to the shell that also has built in timing!
// also, it supports a custom Exit() back to your application
func GoodExit(msg string) {
PB.goodExit(msg)
}
func BadExit(msg string, err error) {
PB.badExit(msg, err)
}
func (pb *Argv) goodExit(msg string) {
go ExitWatchdog()
if me.appExit != nil {
me.appExit()
}
dur := time.Since(pb.Ctime.AsTime())
var appname string
if pb.AppInfo == nil {
appname = os.Args[0]
} else {
appname = pb.AppInfo.APPNAME
}
fmt.Printf("%s: %s (%s)\n", appname, msg, cobol.FormatDuration(dur))
os.Exit(0)
}
func (pb *Argv) badExit(msg string, err error) {
go ExitWatchdog()
if me.appExit != nil {
me.appExit()
}
// print out errors. this handles wrapped errors which is a useful
if err != nil {
if u, ok := err.(interface{ Unwrap() []error }); ok {
// If it does, call the method to get the slice of errors.
allerr := u.Unwrap()
for _, e := range allerr {
fmt.Printf("Error: (%v)\n", e)
}
} else {
// If it's not a joined error, you can fall back to the single-unwrap loop.
fmt.Printf("Error: (%v)\n", err)
}
}
dur := time.Since(pb.Ctime.AsTime())
var appname string
if pb.AppInfo == nil {
appname = os.Args[0]
} else {
appname = pb.AppInfo.APPNAME
}
fmt.Printf("%s error: %s (%s)\n", appname, msg, cobol.FormatDuration(dur))
os.Exit(1)
}
// this code doesn't need to be this complicated. I put it here as reference code for myself so I could remember where it is.
func ExitWatchdog() {
dog := time.NewTicker(5 * time.Second)
defer dog.Stop()
dogchan := make(chan bool)
/*
// this example would exit/destroy the ticker in 10 seconds
go func() {
time.Sleep(10 * time.Second)
done <- true
}()
*/
for {
select {
case <-dogchan:
fmt.Println("Done!")
return
case t := <-dog.C:
_ = t
fmt.Println("argv.Exit() watchdog: stalled in", PB.AppInfo.APPNAME+".Exit()")
// h.Scan()
}
}
}
func Defer(dur time.Duration, f func()) {
dog := time.NewTicker(5 * time.Second)
defer dog.Stop()
dogchan := make(chan bool)
/*
// this example would exit/destroy the ticker in 10 seconds
go func() {
time.Sleep(10 * time.Second)
done <- true
}()
*/
for {
select {
case <-dogchan:
fmt.Println("Done!")
return
case t := <-dog.C:
_ = t
fmt.Println("argv.Exit() watchdog: stalled in", PB.AppInfo.APPNAME+".Exit()")
// h.Scan()
}
}
}
|
