Update main.go

tmcancode · web-flow · commit 25d4e708f5b2 · 2022-08-03T17:57:27.000+07:00
to fix issue alway print message "Must specify a number greater than 0" when user want to see help
diff --git a/chap1/manual-parse/main.go b/chap1/manual-parse/main.go
@@ -24,7 +24,7 @@ func printUsage(w io.Writer) {
 }
 
 func validateArgs(c config) error {
-	if !(c.numTimes > 0) {
+	if c.numTimes <= 0 && !c.printUsage {
 		return errors.New("Must specify a number greater than 0")
 	}
 	return nil

Original file line number	Diff line number	Diff line change
`@@ -24,7 +24,7 @@ func printUsage(w io.Writer) {`
`24`	`24`	`}`
`25`	`25`
`26`	`26`	`func validateArgs(c config) error {`
`27`		`- if !(c.numTimes > 0) {`
	`27`	`+ if c.numTimes <= 0 && !c.printUsage {`
`28`	`28`	`return errors.New("Must specify a number greater than 0")`
`29`	`29`	`}`
`30`	`30`	`return nil`