fix: Drop Node 8 (#459)

Closes #430

BREAKING CHANGE: This drops support for Node 8. Node 10 or greater is now required.

.gitattributes

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

.gitignore

@@ -1,12 +1,7 @@
 node_modules
 coverage
 dist
-.opt-in
-.opt-out
 .DS_Store
-.eslintcache
-yarn-error.log
-.idea/
 
 # these cause more harm than good
 # when working with contributors

.prettierignore

@@ -1,4 +1,3 @@
-package.json
 node_modules
-dist
 coverage
+dist

.prettierrc.js

@@ -0,0 +1 @@
+module.exports = require('kcd-scripts/prettier')

.travis.yml

@@ -3,7 +3,7 @@ cache: npm
 notifications:
   email: false
 node_js:
-  - 10.14
+  - 10.18
   - 12
   - node
 install: npm install
@@ -13,7 +13,6 @@ script:
 branches:
   only:
     - master
-    - next
     - beta
 
 jobs:

package.json

@@ -17,19 +17,19 @@
     "end-to-end",
     "e2e"
   ],
-  "author": "Kent C. Dodds <kent@doddsfamily.us> (https://kentcdodds.com/)",
+  "author": "Kent C. Dodds <me@kentcdodds.com> (https://kentcdodds.com)",
   "license": "MIT",
   "engines": {
-    "node": ">=8"
+    "node": ">=10.18"
   },
   "scripts": {
     "build": "kcd-scripts build --ignore \"**/__tests__/**,**/__node_tests__/**,**/__mocks__/**\" && kcd-scripts build --bundle --no-clean",
     "lint": "kcd-scripts lint",
+    "setup": "npm install && npm run validate -s",
     "test": "kcd-scripts test",
-    "test:update": "npm test -- --updateSnapshot --coverage",
     "test:debug": "node --inspect-brk ./node_modules/.bin/jest --watch --runInBand",
-    "validate": "kcd-scripts validate",
-    "setup": "npm install && npm run validate -s"
+    "test:update": "npm test -- --updateSnapshot --coverage",
+    "validate": "kcd-scripts validate"
   },
   "husky": {
     "hooks": {
@@ -70,7 +70,7 @@
   ],
   "repository": {
     "type": "git",
-    "url": "https://github.com/testing-library/dom-testing-library.git"
+    "url": "https://github.com/testing-library/dom-testing-library"
   },
   "bugs": {
     "url": "https://github.com/testing-library/dom-testing-library/issues"