[meta] use npmignore --auto instead of files to limit published files

Author: ljharb

.gitignore

@@ -23,5 +23,8 @@ sftp-config.json
 eslint-remote-tester-results
 
 # Only apps should have lockfiles
-yarn.lock
+npm-shrinkwrap≥json
 package-lock.json
+yarn.lock
+
+.npmignore

package.json

@@ -5,6 +5,7 @@
  "description": "React specific linting rules for ESLint",
  "main": "index.js",
  "scripts": {
+ "prepack": "npmignore --auto --commentLines=autogenerated",
  "lint": "eslint .",
  "postlint": "npm run type-check",
  "pretest": "npm run lint",
@@ -15,12 +16,6 @@
  "generate-list-of-rules": "md-magic --path README.md",
  "generate-list-of-rules:check": "npm run generate-list-of-rules && git diff --exit-code README.md"
  },
- "files": [
- "LICENSE",
- "README.md",
- "index.js",
- "lib"
- ],
  "repository": {
  "type": "git",
  "url": "https://github.com/jsx-eslint/eslint-plugin-react"
@@ -68,6 +63,7 @@
  "ls-engines": "^0.6.6",
  "markdown-magic": "^2.6.0",
  "mocha": "^5.2.0",
+ "npmignore": "^0.3.0",
  "sinon": "^7.5.0",
  "typescript": "^3.9.9",
  "typescript-eslint-parser": "^20.1.1"
@@ -85,9 +81,18 @@
  "react"
  ],
  "license": "MIT",
- "greenkeeper": {
+ "publishConfig": {
  "ignore": [
- "semver"
+ ".github/",
+ "!lib",
+ "docs/",
+ "test/",
+ "tests/",
+ "*.md",
+ "*.config.js",
+ ".eslintrc",
+ ".editorconfig",
+ "tsconfig.json"
  ]
  }
 }