add ExactlyOne argument rule

Oleg Sucharevich · Oleg Sucharevich · commit e1e054e8d38b · 2019-11-26T08:12:00.000+02:00
diff --git a/build/cli-generator.yaml b/build/cli-generator.yaml
@@ -1,7 +1,7 @@
 metadata:
   name: cli-generator
   description: Generate CLI entrypoints from spec file
-  version: 0.18.0
+  version: 0.19.0
   maintainers:
     - Oleg Sucharevich
 loose: true
diff --git a/configs/templates/spec.json b/configs/templates/spec.json
@@ -106,7 +106,8 @@
                         "enum": [
                             "any",
                             "atLeastOne",
-                            "atLeastTwo"
+                            "atLeastTwo",
+                            "exactlyOne"
                         ]
                     },
                     "default": [
diff --git a/configs/templates/templates.go b/configs/templates/templates.go
diff --git a/pkg/generate/language/golang_utils.go b/pkg/generate/language/golang_utils.go
@@ -59,6 +59,8 @@ func golangRulesToArgsValidation(rule string) string {
 		return "cobra.MinimumNArgs(1)"
 	case spec.AtLeastTwo:
 		return "cobra.MinimumNArgs(2)"
+	case spec.ExactlyOne:
+		return "cobra.ExactArgs(1)"
 	}
 	return res
 }
diff --git a/pkg/spec/spec.go b/pkg/spec/spec.go
@@ -64,6 +64,7 @@ const (
 	Any        Rule = "any"
 	AtLeastOne Rule = "atLeastOne"
 	AtLeastTwo Rule = "atLeastTwo"
+	ExactlyOne Rule = "exactlyOne"
 )
 
 type Type string

Original file line number	Diff line number	Diff line change
`@@ -59,6 +59,8 @@ func golangRulesToArgsValidation(rule string) string {`
`59`	`59`	`return "cobra.MinimumNArgs(1)"`
`60`	`60`	`case spec.AtLeastTwo:`
`61`	`61`	`return "cobra.MinimumNArgs(2)"`
	`62`	`+ case spec.ExactlyOne:`
	`63`	`+ return "cobra.ExactArgs(1)"`
`62`	`64`	`}`
`63`	`65`	`return res`
`64`	`66`	`}`