build: add husky pre-commit hook to lint (#1146)

.husky/.gitignore

+_

.husky/pre-commit

+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+yarn lint:check

package.json

@@ -4,16 +4,19 @@
   "author": "Optimism PBC",
   "license": "MIT",
   "workspaces": {
-      "packages": [
-          "packages/*",
-          "l2geth",
-          "integration-tests",
-          "specs"
-      ],
-        "nohoist": ["examples/*"]
+    "packages": [
+      "packages/*",
+      "l2geth",
+      "integration-tests",
+      "specs"
+    ],
+    "nohoist": [
+      "examples/*"
+    ]
   },
   "private": true,
   "devDependencies": {
+    "husky": "^6.0.0",
     "lerna": "^4.0.0",
     "patch-package": "^6.4.7"
   },
@@ -27,6 +30,7 @@
     "lint:fix": "yarn lerna run lint:fix",
     "postinstall": "patch-package",
     "ready": "yarn lint && yarn test",
+    "prepare": "husky install",
     "release": "yarn build && yarn changeset publish"
   },
   "dependencies": {

yarn.lock

@@ -8302,6 +8302,11 @@ humanize-ms@^1.2.1:
   dependencies:
     ms "^2.0.0"
 
+husky@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/husky/-/husky-6.0.0.tgz#810f11869adf51604c32ea577edbc377d7f9319e"
+  integrity sha512-SQS2gDTB7tBN486QSoKPKQItZw97BMOd+Kdb6ghfpBc0yXyzrddI0oDV5MkDAbuB4X2mO3/nj60TRMcYxwzZeQ==
+
 iconv-lite@0.4.24, iconv-lite@^0.4.24:
   version "0.4.24"
   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"