feat: allow empty scope

Author: neviaumi

src/prompts/scope-maker.test.ts

@@ -58,7 +58,20 @@ describe('scopeMaker', () => {
       const scopeConfig = scopeMaker([], { 'scope-enum': [2, 'always', ['foo', 'bar']] })[0] as ListQuestion;
 
       if (scopeConfig.choices) {
-        expect(scopeConfig.choices).toEqual(['foo', 'bar']);
+        expect(scopeConfig.choices).toEqual([
+          {
+            name: 'foo',
+            value: 'foo'
+          },
+          {
+            name: 'bar',
+            value: 'bar'
+          },
+          {
+            name: ':skip',
+            value: ''
+          }
+        ]);
       }
     });
   });

src/prompts/scope-maker.ts

@@ -1,5 +1,5 @@
 import { Rules } from '@commitlint/load';
-import { DistinctQuestion } from 'inquirer';
+import { ChoiceOptions } from 'inquirer';
 import { whenFactory } from '../when';
 import { caseValidator, emptyValidator, maxLengthValidator, minLengthValidator, validate } from '../validators';
 import { wordCaseFilter } from '../filters';
@@ -37,11 +37,11 @@ export function validatorFactory(rules: Rules) {
 }
 
 export function choicesFactory(rules: Rules) {
-  let choices: string[] | undefined;
+  let choices: ChoiceOptions[] | undefined;
   if (rules['scope-enum']) {
     const [, , scopeEnum] = rules['scope-enum'];
     if (scopeEnum && scopeEnum.length > 0) {
-      choices = scopeEnum;
+      choices = [...scopeEnum.map(scope => ({ name: scope, value: scope })), { name: ':skip', value: '' }];
     }
   }