chore: Configure conventional commits

Author: medikoo

commitlint.config.js

@@ -0,0 +1,23 @@
+'use strict';
+
+module.exports = {
+  rules: {
+    'body-leading-blank': [2, 'always'],
+    'body-max-line-length': [2, 'always', 72],
+    'footer-leading-blank': [2, 'always'],
+    'footer-max-line-length': [2, 'always', 72],
+    'header-max-length': [2, 'always', 72],
+    'scope-case': [2, 'always', 'start-case'],
+    'scope-enum': [2, 'always', ['']],
+    'subject-case': [2, 'always', 'sentence-case'],
+    'subject-empty': [2, 'never'],
+    'subject-full-stop': [2, 'never', '.'],
+    'type-case': [2, 'always', 'lower-case'],
+    'type-empty': [2, 'never'],
+    'type-enum': [
+      2,
+      'always',
+      ['build', 'chore', 'ci', 'docs', 'feat', 'fix', 'perf', 'refactor', 'style', 'test'],
+    ],
+  },
+};

package.json

@@ -32,6 +32,12 @@
       "prettier -c"
     ]
   },
+  "standard-version": {
+    "skip": {
+      "commit": true,
+      "tag": true
+    }
+  },
   "dependencies": {
     "async": "^2.6.3",
     "bluebird": "^3.7.2",
@@ -41,6 +47,7 @@
     "lodash": "^4.17.15"
   },
   "devDependencies": {
+    "@commitlint/cli": "^8.3.5",
     "@serverless/eslint-config": "^1.2.1",
     "coveralls": "^3.0.9",
     "eslint": "^6.8.0",
@@ -50,12 +57,16 @@
     "jest": "^24.9.0",
     "lint-staged": "^10.0.8",
     "prettier": "^1.19.1",
-    "sinon": "^7.5.0"
+    "sinon": "^7.5.0",
+    "standard-version": "^7.1.0"
   },
   "scripts": {
+    "commitlint": "commitlint -f HEAD@{15}",
+    "commitlint:pull-request": "commitlint -f HEAD~1",
     "coverage": "jest --coverage",
     "lint": "eslint . --cache",
     "lint:updated": "pipe-git-updated --ext=js -- eslint --cache",
+    "prepare-release": "standard-version && prettier --write CHANGELOG.md",
     "prettier-check": "prettier -c --ignore-path .gitignore \"**/*.{css,html,js,json,md,yaml,yml}\"",
     "prettier-check:updated": "pipe-git-updated --ext=css --ext=html --ext=js --ext=json --ext=md --ext=yaml --ext=yml -- prettier -c",
     "prettify": "prettier --write --ignore-path .gitignore \"**/*.{css,html,js,json,md,yaml,yml}\"",