.editorconfig

@@ -7,6 +7,6 @@ charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
-[{package.json,*.yml}]
+[*.yml]
 indent_style = space
 indent_size = 2

.gitattributes

@@ -1,2 +1 @@
-* text=auto
-*.js text eol=lf
+* text=auto eol=lf

.gitignore

@@ -1 +1,2 @@
 node_modules
+yarn.lock

.npmrc

@@ -0,0 +1 @@
+package-lock=false

.travis.yml

@@ -1,5 +1,5 @@
-sudo: false
 language: node_js
 node_js:
+  - '10'
+  - '8'
   - '6'
-  - '4'

index.js

@@ -1,5 +1,6 @@
 'use strict';
-const gutil = require('gulp-util');
+const fancyLog = require('fancy-log');
+const PluginError = require('plugin-error');
 const through = require('through2');
 const applySourceMap = require('vinyl-sourcemaps-apply');
 const autoprefixer = require('autoprefixer');
@@ -13,7 +14,7 @@ module.exports = opts => {
 		}
 
 		if (file.isStream()) {
-			cb(new gutil.PluginError('gulp-autoprefixer', 'Streaming not supported'));
+			cb(new PluginError('gulp-autoprefixer', 'Streaming not supported'));
 			return;
 		}
 
@@ -25,25 +26,28 @@ module.exports = opts => {
 			file.contents = Buffer.from(res.css);
 
 			if (res.map && file.sourceMap) {
-				applySourceMap(file, res.map.toString());
+				const map = res.map.toJSON();
+				map.file = file.relative;
+				map.sources = map.sources.map(() => file.relative);
+				applySourceMap(file, map);
 			}
 
 			const warnings = res.warnings();
 
 			if (warnings.length > 0) {
-				gutil.log('gulp-autoprefixer:', '\n  ' + warnings.join('\n  '));
+				fancyLog('gulp-autoprefixer:', '\n  ' + warnings.join('\n  '));
 			}
 
 			setImmediate(cb, null, file);
-		}).catch(err => {
-			const cssError = err.name === 'CssSyntaxError';
+		}).catch(error => {
+			const cssError = error.name === 'CssSyntaxError';
 
 			if (cssError) {
-				err.message += err.showSourceCode();
+				error.message += error.showSourceCode();
 			}
 
 			// Prevent stream unhandled exception from being suppressed by Promise
-			setImmediate(cb, new gutil.PluginError('gulp-autoprefixer', err, {
+			setImmediate(cb, new PluginError('gulp-autoprefixer', error, {
 				fileName: file.path,
 				showStack: !cssError
 			}));

license

@@ -1,21 +1,9 @@
-The MIT License (MIT)
+MIT License
 
 Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

package.json

@@ -1,45 +1,47 @@
 {
-  "name": "gulp-autoprefixer",
-  "version": "4.0.0",
-  "description": "Prefix CSS",
-  "license": "MIT",
-  "repository": "sindresorhus/gulp-autoprefixer",
-  "author": {
-    "name": "Sindre Sorhus",
-    "email": "sindresorhus@gmail.com",
-    "url": "sindresorhus.com"
-  },
-  "engines": {
-    "node": ">=4.5"
-  },
-  "scripts": {
-    "test": "xo && ava"
-  },
-  "files": [
-    "index.js"
-  ],
-  "keywords": [
-    "gulpplugin",
-    "autoprefixer",
-    "postcss",
-    "css",
-    "prefix",
-    "prefixes",
-    "stylesheet",
-    "preprocess",
-    "postcss-runner"
-  ],
-  "dependencies": {
-    "autoprefixer": "^7.0.0",
-    "gulp-util": "^3.0.0",
-    "postcss": "^6.0.1",
-    "through2": "^2.0.0",
-    "vinyl-sourcemaps-apply": "^0.2.0"
-  },
-  "devDependencies": {
-    "ava": "*",
-    "gulp-sourcemaps": "^2.6.0",
-    "p-event": "^1.1.0",
-    "xo": "*"
-  }
+	"name": "gulp-autoprefixer",
+	"version": "6.0.0",
+	"description": "Prefix CSS",
+	"license": "MIT",
+	"repository": "sindresorhus/gulp-autoprefixer",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=6"
+	},
+	"scripts": {
+		"test": "xo && ava"
+	},
+	"files": [
+		"index.js"
+	],
+	"keywords": [
+		"gulpplugin",
+		"autoprefixer",
+		"postcss",
+		"css",
+		"prefix",
+		"prefixes",
+		"stylesheet",
+		"preprocess",
+		"postcss-runner"
+	],
+	"dependencies": {
+		"autoprefixer": "^9.1.3",
+		"fancy-log": "^1.3.2",
+		"plugin-error": "^1.0.1",
+		"postcss": "^7.0.2",
+		"through2": "^2.0.0",
+		"vinyl-sourcemaps-apply": "^0.2.0"
+	},
+	"devDependencies": {
+		"ava": "*",
+		"gulp-sourcemaps": "^2.6.0",
+		"p-event": "^2.1.0",
+		"vinyl": "^2.1.0",
+		"xo": "*"
+	}
 }

readme.md

@@ -5,20 +5,16 @@
 *Issues with the output should be reported on the Autoprefixer [issue tracker](https://github.com/postcss/autoprefixer/issues).*
 
 
----
-
-<p align="center">👾</p>
-<p align="center"><b>Improve your JavaScript skills with this awesome <a href="https://ES6.io/friend/AWESOME">ES6 course</a> by Wes Bos.</b><br>Try his free <a href="https://javascript30.com/friend/AWESOME">JavaScript 30 course</a> for a taste of what to expect. You might also like his <a href="https://ReactForBeginners.com/friend/AWESOME">React</a> & <a href="https://SublimeTextBook.com/friend/AWESOME">Sublime</a> course.</p>
-
----
-
-
 ## Install
 
 ```
 $ npm install --save-dev gulp-autoprefixer
 ```
 
+<a href="https://www.patreon.com/sindresorhus">
+	<img src="https://c5.patreon.com/external/logo/become_a_patron_button@2x.png" width="160">
+</a>
+
 
 ## Usage
 

test.js

@@ -1,6 +1,6 @@
 import path from 'path';
 import test from 'ava';
-import gutil from 'gulp-util';
+import Vinyl from 'vinyl';
 import sourceMaps from 'gulp-sourcemaps';
 import pEvent from 'p-event';
 import m from '.';
@@ -9,11 +9,11 @@ test('autoprefix CSS', async t => {
 	const stream = m();
 	const data = pEvent(stream, 'data');
 
-	stream.end(new gutil.File({
+	stream.end(new Vinyl({
 		cwd: __dirname,
 		base: path.join(__dirname, 'fixture'),
 		path: path.join(__dirname, 'fixture', 'fixture.css'),
-		contents: Buffer.from('a {\n\tdisplay: flex;\n}')
+		contents: Buffer.from('::placeholder {\n\tcolor: gray;\n}')
 	}));
 
 	const file = await data;
@@ -32,7 +32,7 @@ test('generate source maps', async t => {
 		}))
 		.pipe(write);
 
-	init.end(new gutil.File({
+	init.end(new Vinyl({
 		cwd: __dirname,
 		base: path.join(__dirname, 'fixture'),
 		path: path.join(__dirname, 'fixture', 'fixture.css'),
@@ -61,7 +61,7 @@ test('read upstream source maps', async t => {
 	stream.pipe(write);
 
 	stream.end(
-		testFile = new gutil.File({
+		testFile = new Vinyl({
 			cwd: __dirname,
 			base: path.join(__dirname, 'fixture'),
 			path: path.join(__dirname, 'fixture', 'fixture.css'),