bump to postcss 8, bump dependencies, improve speed using postcss 8 api

Author: MattDiMu

README.md

@@ -34,6 +34,9 @@
 }
 ```
 
+### Installation
+`npm install --save-dev postcss postcss-replace-overflow-wrap`
+
 ## Usage
 
 ```js

index.js

@@ -1,15 +1,19 @@
-var postcss = require('postcss')
+// @ts-check
 
-module.exports = postcss.plugin('postcss-replace-overflow-wrap', function (opts) {
-  opts = opts || {}
-  var method = opts.method || 'replace'
+module.exports = function (opts) {
+    opts = opts || {}
+    var method = opts.method || 'replace'
+    return {
+        postcssPlugin: 'postcss-replace-overflow-wrap',
+        Declaration: {
+            'overflow-wrap': decl => {
+                decl.cloneBefore({ prop: 'word-wrap' })
+                if (method === 'replace') {
+                    decl.remove()
+                }
+            }
+        }
+    }
+}
 
-  return function (css) {
-    css.walkDecls('overflow-wrap', function (decl) {
-      decl.cloneBefore({ prop: 'word-wrap' })
-      if (method === 'replace') {
-        decl.remove()
-      }
-    })
-  }
-})
+module.exports.postcss = true

package.json

@@ -19,9 +19,7 @@
   "files": [
     "index.js"
   ],
-  "dependencies": {
-    "postcss": "^7.0.2"
-  },
+  "dependencies": {},
   "devDependencies": {
     "ava": "^0.25.0",
     "eslint": "^5.3.0",
@@ -34,7 +32,11 @@
     "eslint-plugin-node": "^7.0.1",
     "eslint-plugin-promise": "^3.8.0",
     "eslint-plugin-security": "^1.4.0",
-    "eslint-plugin-standard": "^3.1.0"
+    "eslint-plugin-standard": "^3.1.0",
+    "postcss": "^8.0.3"
+  },
+  "peerDependencies": {
+    "postcss": "^8.0.3"
   },
   "scripts": {
     "test": "ava && eslint *.js"
@@ -43,7 +45,12 @@
     "extends": "eslint-config-postcss/es5",
     "rules": {
       "max-len": 0,
-      "es5/no-modules": false
+      "es5/no-modules": false,
+      "indent": [
+        "warn",
+        4
+      ],
+      "es5/no-arrow-functions": 0
     }
   }
 }

test.js

@@ -3,31 +3,31 @@ import test from 'ava'
 
 import plugin from './'
 
-function run (t, input, output, opts = { }) { //eslint-disable-line
-  return postcss([plugin(opts)]).process(input)
-    .then(function (result) {
-      t.deepEqual(result.css, output)
-      t.deepEqual(result.warnings().length, 0)
-    })
+function run(t, input, output, opts = {}) { //eslint-disable-line
+    return postcss([plugin(opts)]).process(input)
+        .then(function (result) {
+            t.deepEqual(result.css, output)
+            t.deepEqual(result.warnings().length, 0)
+        })
 }
 
 test('replace overflow-wrap with word-wrap, no options', function (t) {
-  return run(t,
-    '.someClass{ overflow-wrap: break-word; }',
-    '.someClass{ word-wrap: break-word; }'
-    , {})
+    return run(t,
+        '.someClass{ overflow-wrap: break-word; }',
+        '.someClass{ word-wrap: break-word; }'
+        , {})
 })
 
 test('add word-wrap right before overflow-wrap due to passed arg', function (t) {
-  return run(t,
-    '.anotherClass{font-size:1rem;overflow-wrap:break-word;}',
-    '.anotherClass{font-size:1rem;word-wrap:break-word;overflow-wrap:break-word;}'
-    , { method: 'copy' })
+    return run(t,
+        '.anotherClass{font-size:1rem;overflow-wrap:break-word;}',
+        '.anotherClass{font-size:1rem;word-wrap:break-word;overflow-wrap:break-word;}'
+        , { method: 'copy' })
 })
 
 test('replace overflow-wrap with word-wrap, replace method', function (t) {
-  return run(t,
-    'main { overflow-wrap: normal; }',
-    'main { word-wrap: normal; }'
-    , { method: 'replace' })
+    return run(t,
+        'main { overflow-wrap: normal; }',
+        'main { word-wrap: normal; }'
+        , { method: 'replace' })
 })