Init package

.eslintrc.js

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+module.exports = {
+  extends: 'airbnb-base',
+  rules: {
+    'comma-dangle': ['error', 'never'],
+    semi: ['error', 'never']
+  }
+}

.gitignore

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+node_modules

package.json

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+{
+  "name": "rollup-plugin-delete",
+  "description": "Delete files and folders using Rollup",
+  "version": "0.1.0",
+  "author": "Vlad Shcherbin <[email protected]>",
+  "repository": "vladshcherbin/rollup-plugin-delete",
+  "main": "dist/index.js",
+  "scripts": {
+    "lint": "eslint src",
+    "build": "rollup -c",
+    "clean": "rimraf dist",
+    "prepublishOnly": "yarn lint && yarn build",
+    "postpublish": "yarn clean"
+  },
+  "dependencies": {
+    "del": "^3.0.0"
+  },
+  "devDependencies": {
+    "eslint": "^4.19.1",
+    "eslint-config-airbnb-base": "^13.0.0",
+    "eslint-plugin-import": "^2.13.0",
+    "rimraf": "^2.6.2",
+    "rollup": "^0.62.0"
+  },
+  "files": [
+    "dist",
+    "readme.md"
+  ],
+  "keywords": [
+    "rollup",
+    "plugin",
+    "delete",
+    "clear",
+    "clean",
+    "remove"
+  ],
+  "license": "MIT"
+}

readme.md

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+# rollup-plugin-delete
+
+Delete files and folders using Rollup.
+
+## About
+
+This plugin is useful when you want to clean `dist` or other folders and files before bundling. It's using [del](https://github.com/sindresorhus/del) package inside, check it for pattern examples.
+
+## Installation
+
+```bash
+npm install rollup-plugin-delete --save-dev
+# or
+yarn add rollup-plugin-delete -D
+```
+
+## Usage
+
+```js
+// rollup.config.js
+import del from 'rollup-plugin-delete'
+
+export default {
+  input: 'src/index.js',
+  output: {
+    file: 'dist/app.js',
+    format: 'cjs'
+  },
+  plugins: [
+    del({ targets: 'dist/*' })
+  ]
+}
+```
+
+### Configuration
+
+There are some useful options:
+
+**targets**
+
+A string or an array of patterns of files and folders to be deleted. Default is `[]`.
+
+```js
+del({
+  targets: 'dist/*'
+})
+
+del({
+  targets: ['dist/*', 'build/*']
+})
+```
+
+**verbose**
+
+If set to `true`, will output removed files and folders to console. Default is `false`.
+
+```js
+del({
+  verbose: true
+})
+```
+
+## License
+
+MIT

rollup.config.js

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+export default {
+  input: 'src/index.js',
+  output: {
+    file: 'dist/index.js',
+    format: 'cjs'
+  },
+  external: ['del']
+}

src/index.js

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+/* eslint-disable no-console */
+import del from 'del'
+
+export default function (options = {}) {
+  const targets = options.targets || []
+  const verbose = options.verbose || false
+
+  return {
+    name: 'delete',
+    buildStart: () => del(targets).then((paths) => {
+      if (verbose && paths.length > 0) {
+        console.log('Deleted files and folders:')
+
+        paths.forEach((path) => {
+          console.log(path)
+        })
+      }
+    })
+  }
+}