fix: husky can not auto install issue after upgrade.

.gitignore

@@ -6,6 +6,7 @@
 /lib
 /node_modules
 /themes
+/.husky/_
 
 # exceptions
 !.gitkeep

.husky/pre-commit

@@ -0,0 +1,5 @@
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
+
+npm run prettier
+npx lint-staged

build/husky.sh

@@ -0,0 +1,4 @@
+echo "Husky installing ..."
+npm install husky --save-dev
+npx husky install
+echo "Husky is already installed and hooks enabled."

package.json

@@ -44,7 +44,7 @@
     "prettier": "prettier . --write",
     "lint:fix": "eslint . --fix",
     "lint": "prettier . --check && eslint .",
-    "postinstall": "opencollective-postinstall",
+    "postinstall": "opencollective-postinstall && sh build/husky.sh",
     "prepare": "npm run build",
     "pub:next": "cross-env RELEASE_TAG=next sh build/release.sh",
     "pub": "sh build/release.sh",
@@ -57,11 +57,6 @@
     "watch:css": "npm run css -- -o themes -w",
     "watch:js": "node build/build.js"
   },
-  "husky": {
-    "hooks": {
-      "pre-commit": "lint-staged"
-    }
-  },
   "lint-staged": {
     "*.js": "eslint --fix"
   },