Use XO for linting

.eslintrc.yaml

@@ -1,10 +0,0 @@
-parserOptions:
-  ecmaVersion: 2018
-  sourceType: module
-env:
-  node: true
-extends:
-  - airbnb-base
-  - prettier
-rules:
-  no-param-reassign: off

.vscode/settings.json

@@ -1,7 +1,6 @@
 {
-  "prettier.singleQuote": true,
-  "prettier.trailingComma": "es5",
   "editor.rulers": [80, 100],
   "editor.formatOnSave": true,
-  "editor.tabSize": 2
+  "editor.tabSize": 2,
+  "xo.enable": true
 }

package.json

@@ -11,6 +11,14 @@
   "engines": {
     "node": ">=8"
   },
+  "xo": {
+    "prettier": true
+  },
+  "prettier": {
+    "singleQuote": true,
+    "trailingComma": "es5",
+    "useTabs": false
+  },
   "dependencies": {
     "@types/mime-types": "2.1.0",
     "caporal": "0.10.0",
@@ -24,12 +32,8 @@
     "walkdir": "0.0.12"
   },
   "devDependencies": {
-    "eslint": "5.4.0",
-    "eslint-config-airbnb-base": "13.1.0",
-    "eslint-config-prettier": "3.0.1",
-    "eslint-plugin-import": "2.14.0",
-    "eslint-plugin-jsx-a11y": "6.1.1",
-    "nodemon": "1.18.3"
+    "nodemon": "1.18.3",
+    "xo": "0.23.0"
   },
   "scripts": {
     "dev": "nodemon src/cli.js"

publikator.js

@@ -1,3 +1,4 @@
 #!/usr/bin/env node
 
+// eslint-disable-next-line
 require('./src/cli');

src/cli.js

@@ -1,13 +1,13 @@
+const path = require('path');
 const debugModule = require('debug');
 const fs = require('fs-extra');
-const path = require('path');
 const program = require('caporal');
+const packageJson = require('../package.json');
 const scan = require('./scan');
 const organise = require('./organise');
 const generate = require('./generate');
 
 const debug = debugModule('publikator:cli');
-const packageJson = require('../package.json');
 
 process.on('unhandledRejection', error => {
   throw error;

src/generate.js

@@ -1,5 +1,5 @@
-const fs = require('fs-extra');
 const path = require('path');
+const fs = require('fs-extra');
 const _ = require('lodash');
 const yaml = require('js-yaml');
 const debug = require('debug')('publikator:generate');
@@ -8,8 +8,8 @@ const debug = require('debug')('publikator:generate');
  * Collects unique values across a number of tracks.
  */
 const collect = (tracks, callback) => {
-  const values = _.uniq(_.flatten(tracks.map(t => callback(t)))).filter(
-    x => !!x
+  const values = _.uniq(_.flatten(tracks.map(t => callback(t)))).filter(x =>
+    Boolean(x)
   );
   if (values.length === 0) {
     return null;

src/organise.js

@@ -1,5 +1,5 @@
-const fs = require('fs-extra');
 const path = require('path');
+const fs = require('fs-extra');
 const _ = require('lodash');
 const sanitize = require('sanitize-filename');
 const debug = require('debug')('publikator:organise');

src/scan.js

@@ -1,5 +1,5 @@
-const debug = require('debug')('publikator:scan');
 const path = require('path');
+const debug = require('debug')('publikator:scan');
 const walk = require('walkdir');
 const tags = require('./tags');
 

src/tags.js

@@ -60,7 +60,7 @@ module.exports = {
     tags.reduce((all, tag) => {
       const value = _.get(taggedFile, tag);
       if (value !== undefined) {
-        all[tag] = value; // eslint-disable-line
+        all[tag] = value;
       }
       return all;
     }, {}),