chore: update project

Author: jonathantneal

.gitignore

@@ -1,6 +1,8 @@
 node_modules
-index.*.*
+index.cjs*
+index.mjs*
 package-lock.json
+yarn.lock
 *.log*
 *.result.css
 .*

.rollup.js

@@ -3,8 +3,8 @@ import babel from 'rollup-plugin-babel';
 export default {
 	input: 'index.js',
 	output: [
-		{ file: 'index.cjs.js', format: 'cjs', sourcemap: true, strict: false },
-		{ file: 'index.esm.mjs', format: 'esm', sourcemap: true, strict: false }
+		{ file: 'index.cjs', format: 'cjs', exports: 'default', sourcemap: true, strict: false },
+		{ file: 'index.mjs', format: 'esm', sourcemap: true, strict: false }
 	],
 	plugins: [
 		babel({

.travis.yml

@@ -3,7 +3,4 @@
 language: node_js
 
 node_js:
-  - 8
-
-install:
-  - npm install --ignore-scripts
+  - 12

index.js

@@ -1,4 +1,4 @@
-import browserslist from 'browserslist';
+import browserslist from 'browserslist'
 
 const plugin = opts => {
 	return {
@@ -8,83 +8,83 @@ const plugin = opts => {
 			const clientBrowserList = browserslist(
 				Object(opts).browsers || null,
 				{ path: root.source && root.source.input && root.source.input.file }
-			);
+			)
 
 			// root children references
-			const references = root.nodes.slice(0);
+			const references = root.nodes.slice(0)
 
 			// for each child node of the root children references
-			for (let node of references) {
+			for (const node of references) {
 				// if the node is a comment browser comment node
 				if (isBrowserCommentNode(node)) {
 					// rule following the browser comment
-					const rule = node.next();
+					const rule = node.next()
 
 					// browser data
-					const browserdata = getBrowserData(node.text);
+					const browserdata = getBrowserData(node.text)
 
 					if (browserdata.isNumbered) {
 						rule.nodes.filter(isBrowserReferenceCommentNode).map(
 							comment => {
-								const browserdataIndex = parseFloat(comment.text) - 1;
-								const browserslistPart = browserdata.browserslist[browserdataIndex];
+								const browserdataIndex = parseFloat(comment.text) - 1
+								const browserslistPart = browserdata.browserslist[browserdataIndex]
 
 								// whether to remove the rule if the comment browserslist does not match the client browserslist
 								const removeRule = !clientBrowserList.some(
 									clientBrowser => browserslist(browserslistPart).some(
 										commentBrowser => commentBrowser === clientBrowser
 									)
-								);
+								)
 
 								// conditionally remove the declaration and reference comment
 								if (removeRule) {
-									comment.prev().remove();
-									comment.remove();
+									comment.prev().remove()
+									comment.remove()
 								}
 							}
-						);
+						)
 
 						// conditionally remove the empty rule and comment
 						if (!rule.nodes.length) {
-							rule.remove();
-							node.remove();
+							rule.remove()
+							node.remove()
 						}
 					} else {
 						// whether to remove the rule if the comment browserslist does not match the client browserslist
 						const removeRule = !clientBrowserList.some(
 							clientBrowser => browserslist(browserdata.browserslist).some(
 								commentBrowser => commentBrowser === clientBrowser
 							)
-						);
+						)
 
 						// conditionally remove the rule and comment
 						if (removeRule) {
-							rule.remove();
-							node.remove();
+							rule.remove()
+							node.remove()
 						}
 					}
 				}
 			}
 		}
 	}
-};
+}
 
-plugin.postcss = true;
+plugin.postcss = true
 
-export default plugin;
+export default plugin
 
 // returns whether a node is a browser comment
-const isBrowserCommentNode = node => node.type === 'comment' && isBrowserCommentNodeRegExp.test(node.text) && node.next().type === 'rule';
-const isBrowserCommentNodeRegExp = /^\*\n * /;
+const isBrowserCommentNode = node => node.type === 'comment' && isBrowserCommentNodeRegExp.test(node.text) && node.next().type === 'rule'
+const isBrowserCommentNodeRegExp = /^\*\n * /
 
 // returns whether a node is a browser reference comment
-const isBrowserReferenceCommentNode = node => node.type === 'comment' && isBrowserReferenceCommentNodeRegExp.test(node.text);
-const isBrowserReferenceCommentNodeRegExp = /^\d+$/;
+const isBrowserReferenceCommentNode = node => node.type === 'comment' && isBrowserReferenceCommentNodeRegExp.test(node.text)
+const isBrowserReferenceCommentNodeRegExp = /^\d+$/
 
 // returns browser data from comment text
 const getBrowserData = text => {
-	const browserDataNumbered = text.match(browserDataMutliRegExp);
-	const isNumbered = Boolean(browserDataNumbered);
+	const browserDataNumbered = text.match(browserDataMutliRegExp)
+	const isNumbered = Boolean(browserDataNumbered)
 
 	return {
 		browserslist: isNumbered
@@ -96,10 +96,10 @@ const getBrowserData = text => {
 		),
 		isNumbered
 	}
-};
-const browserDataMutliRegExp = /(\n \* \d+\. (?:[^\n]+|\n \* {4,})+)/g;
-const browserDataNewlineRegExp = /^\*\n \* ?|\n \*/g;
-const browserDataNumberedNewlineRegExp = /\n \* (?:( )\s*)?/g;
+}
+const browserDataMutliRegExp = /(\n \* \d+\. (?:[^\n]+|\n \* {4,})+)/g
+const browserDataNewlineRegExp = /^\*\n \* ?|\n \*/g
+const browserDataNumberedNewlineRegExp = /\n \* (?:( )\s*)?/g
 
 // returns a browserlist from comment text
 const getBrowsersList = text => text.split(getBrowsersListInSplitRegExp).slice(1).map(
@@ -119,7 +119,7 @@ const getBrowsersList = text => text.split(getBrowsersListInSplitRegExp).slice(1
 			: ' > 0'
 		}`
 	).toLowerCase()
-);
-const getBrowsersListInSplitRegExp = /\s+in\s+/;
-const getBrowsersListAndSplitRegExp = /(?: and|, and|,)/;
-const getBrowsersListQueryRegExp = /^\s*(\w+)(?: ((?:(?:\d*\.)?\d+-)?(?:\d*\.)?\d+[+-]?))?.*$/;
+)
+const getBrowsersListInSplitRegExp = /\s+in\s+/
+const getBrowsersListAndSplitRegExp = /(?: and|, and|,)/
+const getBrowsersListQueryRegExp = /^\s*(\w+)(?: ((?:(?:\d*\.)?\d+-)?(?:\d*\.)?\d+[+-]?))?.*$/

package.json

@@ -7,55 +7,54 @@
   "repository": "csstools/postcss-browser-comments",
   "homepage": "https://github.com/csstools/postcss-browser-comments#readme",
   "bugs": "https://github.com/csstools/postcss-browser-comments/issues",
-  "main": "index.cjs.js",
-  "module": "index.esm.mjs",
+  "main": "index.cjs",
+  "module": "index.mjs",
   "files": [
-    "index.cjs.js",
-    "index.cjs.js.map",
-    "index.esm.mjs",
-    "index.esm.mjs.map"
+    "index.cjs",
+    "index.cjs.map",
+    "index.mjs",
+    "index.mjs.map"
   ],
   "scripts": {
     "prepublishOnly": "npm test",
-    "pretest": "rollup --config .rollup.js --silent",
-    "test": "npm run test:js && npm run test:tape",
-    "test:ec": "echint --ignore index.*.js test",
-    "test:js": "eslint *.js --cache --ignore-path .gitignore --quiet",
-    "test:tape": "postcss-tape"
+    "build": "rollup --config .rollup.js --silent",
+    "lint": "eslint *.js --cache --ignore-path .gitignore --quiet",
+    "test": "npm run lint && npm run build && npm run tape",
+    "tape": "postcss-tape"
   },
   "engines": {
-    "node": ">=8.0.0"
+    "node": ">=8"
   },
   "peerDependencies": {
-    "browserslist": "^4",
-    "postcss": "^8.2.8"
+    "browserslist": ">=4",
+    "postcss": ">=8"
   },
   "devDependencies": {
-    "@babel/core": "^7.4.5",
-    "@babel/preset-env": "^7.4.5",
-    "babel-eslint": "^10.0.1",
-    "browserslist": "^4.1.1",
-    "eslint": "^5.16.0",
-    "postcss": "^8.2.8",
-    "postcss-tape": "^6.0.1",
-    "pre-commit": "^1.2.2",
-    "rollup": "^1.12.3",
-    "rollup-plugin-babel": "^4.3.2"
+    "@babel/core": "7.13.16",
+    "@babel/preset-env": "7.13.15",
+    "browserslist": "4.1.1",
+    "eslint": "7.25.0",
+    "postcss": "8.2.13",
+    "postcss-tape": "6.0.1",
+    "pre-commit": "1.2.2",
+    "rollup": "2.46.0",
+    "rollup-plugin-babel": "4.3.2"
   },
   "eslintConfig": {
-    "env": {
-      "browser": true,
-      "es6": true,
-      "node": true
-    },
     "extends": "eslint:recommended",
-    "parser": "babel-eslint",
     "parserOptions": {
-      "ecmaVersion": 2018,
-      "impliedStrict": true,
-      "sourceType": "module"
+      "ecmaVersion": 12,
+      "sourceType": "module",
+      "ecmaFeatures": {
+        "modules": true
+      }
     },
-    "root": true
+    "rules": {
+      "semi": [
+        "error",
+        "never"
+      ]
+    }
   },
   "keywords": [
     "postcss",