Default help command

hedhyw · Jan 15, 2022 · 011f684 · 011f684
1 parent b9cf979
commit 011f684
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Showing 2 changed files with 9 additions and 3 deletions.
diff --git a/internal/app/app.go b/internal/app/app.go
@@ -49,7 +49,7 @@ func Run(arguments []string, out io.Writer) (err error) {
 	switch {
 	case *list:
 		return runListTemplates(out)
-	case *help:
+	case *help, inputFile == "":
 		return runHelp()
 	default:
 		return runGenerator(out, enums.Format(*outputFormat), *templateFile, inputFile)

diff --git a/internal/app/help.go b/internal/app/help.go
@@ -1,9 +1,15 @@
 package app
 
-import "flag"
+import (
+	"flag"
+	"fmt"
+	"os"
+)
 
 func runHelp() (err error) {
-	flag.Usage()
+	fmt.Fprintf(flag.CommandLine.Output(), "Usage of %s [FILE]:\n", os.Args[0])
+	flag.PrintDefaults()
+	fmt.Fprintf(flag.CommandLine.Output(), "\nExample: %s example.feature >> example_test.go\n", os.Args[0])
 
 	return nil
 }