From f8f0fd0941f1fbf5f297bead7c65ac6bdf36ed46 Mon Sep 17 00:00:00 2001
From: Lukas Taegert-Atkinson <lukas.taegert-atkinson@tngtech.com>
Date: Fri, 30 Sep 2022 06:54:16 +0200
Subject: [PATCH] fix(legacy): prepare for Rollup 3

BREAKING CHANGES: Requires Node 14
---
 packages/legacy/README.md         |  2 +-
 packages/legacy/package.json      | 31 ++++++++++++++++++++++---------
 packages/legacy/rollup.config.js  | 13 -------------
 packages/legacy/rollup.config.mjs | 13 +++++++++++++
 pnpm-lock.yaml                    | 12 ++++++------
 5 files changed, 42 insertions(+), 29 deletions(-)
 delete mode 100644 packages/legacy/rollup.config.js
 create mode 100644 packages/legacy/rollup.config.mjs

diff --git a/packages/legacy/README.md b/packages/legacy/README.md
index 8ada4f387..83dfa6fc1 100644
--- a/packages/legacy/README.md
+++ b/packages/legacy/README.md
@@ -13,7 +13,7 @@
 
 ## Requirements
 
-This plugin requires an [LTS](https://github.com/nodejs/Release) Node version (v8.0.0+) and Rollup v1.20.0+.
+This plugin requires an [LTS](https://github.com/nodejs/Release) Node version (v14.0.0+) and Rollup v1.20.0+.
 
 ## Install
 
diff --git a/packages/legacy/package.json b/packages/legacy/package.json
index 03567cba8..04e4d9e29 100644
--- a/packages/legacy/package.json
+++ b/packages/legacy/package.json
@@ -13,8 +13,16 @@
   "author": "Rich Harris",
   "homepage": "https://github.com/rollup/plugins/tree/master/packages/legacy/#readme",
   "bugs": "https://github.com/rollup/plugins/issues",
-  "main": "dist/index.js",
-  "module": "dist/index.es.js",
+  "main": "./dist/cjs/index.js",
+  "module": "./dist/es/index.js",
+  "exports": {
+    "types": "./types/index.d.ts",
+    "import": "./dist/es/index.js",
+    "default": "./dist/cjs/index.js"
+  },
+  "engines": {
+    "node": ">=14.0.0"
+  },
   "scripts": {
     "build": "rollup -c",
     "ci:coverage": "nyc pnpm test && nyc report --reporter=text-lcov > coverage.lcov",
@@ -30,6 +38,7 @@
   },
   "files": [
     "dist",
+    "!dist/**/*.map",
     "types",
     "README.md",
     "LICENSE"
@@ -39,20 +48,24 @@
     "plugin"
   ],
   "peerDependencies": {
-    "rollup": "^1.20.0||^2.0.0"
+    "rollup": "^1.20.0||^2.0.0||^3.0.0"
+  },
+  "peerDependenciesMeta": {
+    "rollup": {
+      "optional": true
+    }
   },
   "dependencies": {
-    "@rollup/pluginutils": "^4.1.0"
+    "@rollup/pluginutils": "^4.2.1"
   },
   "devDependencies": {
     "@rollup/plugin-buble": "^0.21.3",
-    "del-cli": "^3.0.1",
-    "rollup": "^2.67.3"
+    "del-cli": "^5.0.0",
+    "rollup": "^3.0.0-7"
   },
+  "types": "./types/index.d.ts",
   "ava": {
-    "babel": {
-      "compileEnhancements": false
-    },
+    "workerThreads": false,
     "files": [
       "!**/fixtures/**",
       "!**/helpers/**",
diff --git a/packages/legacy/rollup.config.js b/packages/legacy/rollup.config.js
deleted file mode 100644
index e1bf2aaa8..000000000
--- a/packages/legacy/rollup.config.js
+++ /dev/null
@@ -1,13 +0,0 @@
-import buble from '@rollup/plugin-buble';
-
-import pkg from './package.json';
-
-export default {
-  input: 'src/index.js',
-  plugins: [buble()],
-  external: ['path'],
-  output: [
-    { file: pkg.main, format: 'cjs', sourcemap: true, exports: 'auto' },
-    { file: pkg.module, format: 'es', sourcemap: true }
-  ]
-};
diff --git a/packages/legacy/rollup.config.mjs b/packages/legacy/rollup.config.mjs
new file mode 100644
index 000000000..888000cd3
--- /dev/null
+++ b/packages/legacy/rollup.config.mjs
@@ -0,0 +1,13 @@
+import { readFileSync } from 'fs';
+
+import buble from '@rollup/plugin-buble';
+
+import { createConfig } from '../../shared/rollup.config.mjs';
+
+export default {
+  ...createConfig({
+    pkg: JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf8'))
+  }),
+  input: 'src/index.js',
+  plugins: [buble()]
+};
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 74fd3e235..a1e37f5c8 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -351,15 +351,15 @@ importers:
   packages/legacy:
     specifiers:
       '@rollup/plugin-buble': ^0.21.3
-      '@rollup/pluginutils': ^4.1.0
-      del-cli: ^3.0.1
-      rollup: ^2.67.3
+      '@rollup/pluginutils': ^4.2.1
+      del-cli: ^5.0.0
+      rollup: ^3.0.0-7
     dependencies:
       '@rollup/pluginutils': 4.2.1
     devDependencies:
-      '@rollup/plugin-buble': 0.21.3_rollup@2.79.1
-      del-cli: 3.0.1
-      rollup: 2.79.1
+      '@rollup/plugin-buble': 0.21.3_rollup@3.0.0-7
+      del-cli: 5.0.0
+      rollup: 3.0.0-7
 
   packages/multi-entry:
     specifiers: