chore: add eslint and prettier cmd

Author: ygj6

.eslintignore

@@ -0,0 +1,19 @@
+.github
+bin
+playground
+src/__tests__
+transformations/__testfixtures__
+transformations/__tests__
+vue-transformations/__testfixtures__
+vue-transformations/__tests__
+.editorconfig
+.eslintignore
+.eslintrc.js
+.gitignore
+.prettierignore
+.prettierrc
+LICENSE
+package.json
+README.md
+tsconfig.json
+yarn.lock

.eslintrc.js

@@ -0,0 +1,64 @@
+const DOMGlobals = ['window', 'document']
+const NodeGlobals = ['module', 'require']
+
+module.exports = {
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    sourceType: 'module'
+  },
+  rules: {
+    'no-unused-vars': [
+      'error',
+      // we are only using this rule to check for unused arguments since TS
+      // catches unused variables but not args.
+      { varsIgnorePattern: '.*', args: 'none' }
+    ],
+    // since we target ES2015 for baseline support, we need to forbid object
+    // rest spread usage (both assign and destructure)
+    'no-restricted-syntax': [
+      'error',
+      'ObjectExpression > SpreadElement',
+      'ObjectPattern > RestElement'
+    ]
+  },
+  overrides: [
+    // tests, no restrictions (runs in Node / jest with jsdom)
+    {
+      files: ['**/__tests__/**', 'test-dts/**'],
+      rules: {
+        'no-restricted-globals': 'off',
+        'no-restricted-syntax': 'off'
+      }
+    },
+    // shared, may be used in any env
+    {
+      files: ['packages/shared/**'],
+      rules: {
+        'no-restricted-globals': 'off'
+      }
+    },
+    // Packages targeting DOM
+    {
+      files: ['packages/{vue,vue-compat,runtime-dom}/**'],
+      rules: {
+        'no-restricted-globals': ['error', ...NodeGlobals]
+      }
+    },
+    // Packages targeting Node
+    {
+      files: ['packages/{compiler-sfc,compiler-ssr,server-renderer}/**'],
+      rules: {
+        'no-restricted-globals': ['error', ...DOMGlobals],
+        'no-restricted-syntax': 'off'
+      }
+    },
+    // Private package, browser only + no syntax restrictions
+    {
+      files: ['packages/template-explorer/**', 'packages/sfc-playground/**'],
+      rules: {
+        'no-restricted-globals': ['error', ...NodeGlobals],
+        'no-restricted-syntax': 'off'
+      }
+    }
+  ]
+}

.prettierignore

@@ -0,0 +1,19 @@
+.github
+bin
+playground
+src/__tests__
+transformations/__testfixtures__
+transformations/__tests__
+vue-transformations/__testfixtures__
+vue-transformations/__tests__
+.editorconfig
+.eslintignore
+.eslintrc.js
+.gitignore
+.prettierignore
+.prettierrc
+LICENSE
+package.json
+README.md
+tsconfig.json
+yarn.lock

.prettierrc

@@ -0,0 +1,6 @@
+semi: false
+singleQuote: true
+printWidth: 80
+trailingComma: 'none'
+endOfLine: 'lf'
+arrowParens: 'avoid'

package.json

@@ -12,7 +12,12 @@
     "build": "tsc",
     "prepublishOnly": "tsc",
     "playground": "npm run build && cd ./playground && npm install && npm run dev",
-    "test": "jest"
+    "test": "jest",
+    "fix": "npm-run-all --parallel lint:fix format:fix",
+    "lint:codes": "eslint . --ext .ts",
+    "lint:fix": "npm run lint:codes --fix",
+    "format:prettier": "prettier --config .prettierrc .",
+    "format:fix": "prettier --write --config .prettierrc ."
   },
   "repository": {
     "type": "git",
@@ -43,8 +48,11 @@
     "@types/lodash": "^4.14.170",
     "@types/node": "^12.12.47",
     "@types/yargs": "^15.0.4",
+    "@typescript-eslint/parser": "^4.27.0",
+    "eslint": "^7.29.0",
     "jest": "^26.1.0",
-    "prettier": "^2.0.4",
+    "npm-run-all": "^4.1.5",
+    "prettier": "^2.3.1",
     "ts-jest": "^26.1.1",
     "typescript": "^4.1.3"
   },
@@ -56,10 +64,6 @@
       "<rootDir>/node_modules/"
     ]
   },
-  "prettier": {
-    "semi": false,
-    "singleQuote": true
-  },
   "engines": {
     "node": ">= 10.0"
   }