feat(engine): allow user to add [skip-ci] in head of commit message

re #5

.travis.yml

@@ -6,9 +6,9 @@ cache:
 notifications:
   email: false
 node_js:
-  - '4'
+  - '8.9.4'
 before_install:
-  - npm i -g npm@^2.0.0
+  - npm i -g npm@^5.6.0
 before_script:
   - npm prune
 after_success:

__tests__/__snapshots__/engine.spec.js.snap

@@ -0,0 +1,17 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Engine should add [skip-ci] to commit message head if user said yes to skip deployment 1`] = `
+"chore(buildspec): [skip-ci] This is a test message
+
+
+
+fix #Issue01"
+`;
+
+exports[`Engine should not add [skip-ci] to commit message head if user said no (default) to skip deployment 1`] = `
+"chore(buildspec): This is a test message
+
+
+
+fix #Issue01"
+`;

__tests__/engine.spec.js

@@ -0,0 +1,42 @@
+describe('Engine', () => {
+    let engine = require('../index');
+    let answersMock = {
+        type: 'chore',
+        scope: 'buildspec',
+        subject: 'This is a test message',
+        body: '',
+        isBreaking: false,
+        needDeployment: true,
+        isIssueAffected: true,
+        issues: 'fix #Issue01'
+    };
+
+    let cz = {
+        prompt: jest.fn()
+    };
+
+    beforeEach(() => {
+        cz.prompt.mockReset();
+    });
+
+    test('should not add [skip-ci] to commit message head if user said no (default) to skip deployment', (done) => { 
+        cz.prompt.mockReturnValue(Promise.resolve(answersMock));
+        engine.prompter(cz, (commitMessage) => {
+            expect(commitMessage).toMatchSnapshot();
+            expect(/\[skip-ci\]/g.test(commitMessage)).toBeFalsy();
+            done();
+        });
+    });
+
+    test('should add [skip-ci] to commit message head if user said yes to skip deployment', (done) => { 
+        cz.prompt.mockReturnValue(Promise.resolve({
+            ...answersMock,
+            needDeployment: false
+        }));
+        engine.prompter(cz, (commitMessage) => {
+            expect(commitMessage).toMatchSnapshot();
+            expect(/\[skip-ci\]/g.test(commitMessage)).toBeTruthy();
+            done();
+        });
+    });
+});

engine.js

@@ -91,6 +91,11 @@ module.exports = function (options) {
           when: function(answers) {
             return answers.isBreaking;
           }
+        }, {
+          type: 'confirm',
+          name: 'needDeployment',
+          message: 'Does this commit needs to be deployed?',
+          default: true
         }, {
           type: 'confirm',
           name: 'isIssueAffected',
@@ -123,8 +128,11 @@ module.exports = function (options) {
         scope = scope.trim();
         scope = scope ? '(' + scope + ')' : '';
 
+        // add [skip-ci] in commit message to trip deployment pipeline when necessary
+        var skipDeploymentMsg = answers.needDeployment ? '' : '[skip-ci] ';
+
         // Hard limit this line
-        var head = (answers.type + scope + ': ' + answers.subject.trim()).slice(0, maxLineWidth);
+        var head = (answers.type + scope + ': ' + skipDeploymentMsg + answers.subject.trim()).slice(0, maxLineWidth);
 
         // Wrap these lines at 100 characters
         var body = wrap(answers.body, wrapOptions);

package.json

@@ -5,7 +5,8 @@
   "main": "index.js",
   "scripts": {
     "commit": "git-cz",
-    "test": "echo 'Tests need to be setup!'",
+    "test": "jest",
+    "test:debug": "node --inspect-brk node_modules/.bin/jest --runInBand --no-cache",
     "semantic-release": "semantic-release pre && npm publish && semantic-release post"
   },
   "homepage": "https://github.com/commitizen/cz-conventional-changelog",
@@ -24,8 +25,14 @@
   },
   "devDependencies": {
     "commitizen": "2.9.6",
+    "jest": "^24.5.0",
     "semantic-release": "^6.3.2"
   },
+  "jest": {
+    "testMatch": [
+      "**/__tests__/**/*.spec.js"
+    ]
+  },
   "config": {
     "commitizen": {
       "path": "./index.js"