Add eslint and solhint

.eslintrc.js

@@ -0,0 +1,32 @@
+module.exports = {
+  'env': {
+    'browser': true,
+    'es6': true,
+    'node': true
+  },
+  'extends': 'eslint:recommended',
+  'globals': {
+    'Atomics': 'readonly',
+    'SharedArrayBuffer': 'readonly'
+  },
+  'parserOptions': {
+    'ecmaVersion': 2018,
+    'sourceType': 'module'
+  },
+  'rules': {
+    'comma-dangle': ['error', {
+      arrays: 'always-multiline',
+      objects: 'always-multiline',
+      imports: 'never',
+      exports: 'never',
+      functions: 'ignore',
+    }],
+    'eol-last': ['error', 'always'],
+    semi: ['error', 'always'],
+    'space-before-function-paren': ['error', {
+      anonymous: 'never',
+      named: 'always',
+      asyncArrow: 'always',
+    }],
+  }
+}

.solhint.json

@@ -0,0 +1,3 @@
+{
+  "extends": "solhint:default"
+}

package.json

@@ -20,6 +20,8 @@
     "deploy:apps": "./scripts/every-app.sh \"aragon apm publish major\"",
     "devchain": "aragon devchain --port 7545",
     "dao:address": "truffle exec scripts/current-address.js",
+    "lint:contracts": "solhint contracts/**/*.sol apps/**/contracts/**/*.sol",
+    "lint:wrapper": "eslint lib/",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "repository": {
@@ -37,10 +39,15 @@
     "@aragon/kits-base": "^1.0.0",
     "@aragon/os": "^4.1.0",
     "async-each-series": "^1.1.0",
+    "eslint": "^5.16.0",
+    "eslint-plugin-import": "^2.16.0",
+    "eslint-plugin-node": "^8.0.1",
+    "eslint-plugin-promise": "^4.1.1",
     "eth-provider": "^0.2.2",
     "openzeppelin-solidity": "^2.2.0",
     "promptly": "^3.0.3",
-    "solc": "^0.4.25"
+    "solc": "^0.4.25",
+    "solhint": "^2.0.0"
   },
   "dependencies": {
     "ethers": "^4.0.27",