Add prettier setup to eslint config.

.eslintrc.js

@@ -3,23 +3,24 @@ module.exports = {
   plugins: ['node'],
   extends: [
     'eslint:recommended',
-    'plugin:node/recommended'
+    'plugin:node/recommended',
+    'plugin:prettier/recommended',
   ],
   parserOptions: {
     sourceType: 'script',
-    ecmaVersion: 2017
+    ecmaVersion: 2017,
   },
   env: {
     browser: false,
-    node: true
+    node: true,
   },
   overrides: [
     // test files
     {
       files: ['tests/**/*.js'],
       env: {
-        qunit: true
-      }
-    }
-  ]
+        qunit: true,
+      },
+    },
+  ],
 };

.prettierrc

@@ -0,0 +1,3 @@
+{
+  "singleQuote": true
+}

package.json

@@ -37,7 +37,9 @@
     "ember-cli": "~3.20.0",
     "ember-cli-dependency-checker": "^3.2.0",
     "eslint": "^7.7.0",
+    "eslint-config-prettier": "^6.11.0",
     "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-prettier": "^3.1.4",
     "execa": "^4.0.3",
     "prettier": "^2.1.1",
     "qunit": "^2.11.1",

yarn.lock

@@ -2587,6 +2587,13 @@ escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
+eslint-config-prettier@^6.11.0:
+  version "6.11.0"
+  resolved "https://registry.yarnpkg.com/eslint-config-prettier/-/eslint-config-prettier-6.11.0.tgz#f6d2238c1290d01c859a8b5c1f7d352a0b0da8b1"
+  integrity sha512-oB8cpLWSAjOVFEJhhyMZh6NOEOtBVziaqdDQ86+qhDHFbZXoRTM7pNSvFRfW/W/L/LrQ38C99J5CGuRBBzBsdA==
+  dependencies:
+    get-stdin "^6.0.0"
+
 eslint-plugin-es@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/eslint-plugin-es/-/eslint-plugin-es-3.0.0.tgz#98cb1bc8ab0aa807977855e11ad9d1c9422d014b"
@@ -2607,6 +2614,13 @@ eslint-plugin-node@^11.1.0:
     resolve "^1.10.1"
     semver "^6.1.0"
 
+eslint-plugin-prettier@^3.1.4:
+  version "3.1.4"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-prettier/-/eslint-plugin-prettier-3.1.4.tgz#168ab43154e2ea57db992a2cd097c828171f75c2"
+  integrity sha512-jZDa8z76klRqo+TdGDTFJSavwbnWK2ZpqGKNZ+VvweMW516pDUMmQ2koXvxEE4JhzNvTv+radye/bWGBmA6jmg==
+  dependencies:
+    prettier-linter-helpers "^1.0.0"
+
 eslint-scope@^5.1.0:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-5.1.0.tgz#d0f971dfe59c69e0cada684b23d49dbf82600ce5"
@@ -2902,6 +2916,11 @@ fast-deep-equal@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz#7b05218ddf9667bf7f370bf7fdb2cb15fdd0aa49"
 
+fast-diff@^1.1.2:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/fast-diff/-/fast-diff-1.2.0.tgz#73ee11982d86caaf7959828d519cfe927fac5f03"
+  integrity sha512-xJuoT5+L99XlZ8twedaRf6Ax2TgQVxvgZOYoPKqZufmJib0tL2tegPBOZb1pVNgIhlqDlA0eO0c3wBvQcmzx4w==
+
 fast-glob@^3.0.3:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/fast-glob/-/fast-glob-3.0.4.tgz#d484a41005cb6faeb399b951fd1bd70ddaebb602"
@@ -3365,6 +3384,11 @@ get-stdin@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-4.0.1.tgz#b968c6b0a04384324902e8bf1a5df32579a450fe"
 
+get-stdin@^6.0.0:
+  version "6.0.0"
+  resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-6.0.0.tgz#9e09bf712b360ab9225e812048f71fde9c89657b"
+  integrity sha512-jp4tHawyV7+fkkSKyvjuLZswblUtz+SQKzSWnBbii16BuZksJlU1wuBYXY75r+duh/llF1ur6oNwi+2ZzjKZ7g==
+
 [email protected], get-stream@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/get-stream/-/get-stream-3.0.0.tgz#8e943d1358dc37555054ecbe2edb05aa174ede14"
@@ -5892,6 +5916,13 @@ prepend-http@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
 
+prettier-linter-helpers@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/prettier-linter-helpers/-/prettier-linter-helpers-1.0.0.tgz#d23d41fe1375646de2d0104d3454a3008802cf7b"
+  integrity sha512-GbK2cP9nraSSUF9N2XwUwqfzlAFlMNYYl+ShE/V+H8a9uNl/oUqB1w2EL54Jh0OlyRSd8RfWYJ3coVS4TROP2w==
+  dependencies:
+    fast-diff "^1.1.2"
+
 prettier@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.1.1.tgz#d9485dd5e499daa6cb547023b87a6cf51bee37d6"