feat: usage of ESLint v8 (#274)

BREAKING CHANGE: Similarly to https://github.com/standard/standard/releases/tag/v17.0.0

index.js

@@ -1,8 +1,5 @@
-/*! semistandard. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
-// programmatic usage
-import engine from 'standard-engine'
-import opts from './options.js'
+/*! standard. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
+import { StandardEngine } from 'standard-engine'
+import options from './options.js'
 
-const Linter = engine.linter
-
-export default new Linter(opts)
+export default new StandardEngine(options)

options.js

@@ -1,19 +1,21 @@
-import { fileURLToPath } from 'node:url'
 import { readFileSync } from 'node:fs'
+import { fileURLToPath } from 'node:url'
 import eslint from 'eslint'
 
-const pkgUrl = new URL('./package.json', import.meta.url)
-const pkg = JSON.parse(readFileSync(pkgUrl, 'utf-8'))
+// eslintConfig.overrideConfigFile have problem reading URLs and file:///
+const overrideConfigFile = fileURLToPath(new URL('./eslintrc.json', import.meta.url))
+const pkgURL = new URL('./package.json', import.meta.url)
+const pkgJSON = readFileSync(pkgURL, { encoding: 'utf-8' })
+const pkg = JSON.parse(pkgJSON)
 
 export default {
-  // cmd, homepage, bugs all pulled from package.json
-  cmd: 'semistandard',
-  version: pkg.version,
-  homepage: pkg.homepage,
   bugs: pkg.bugs.url,
-  tagline: 'Semicolons For All!',
+  cmd: 'semistandard',
   eslint,
   eslintConfig: {
-    configFile: fileURLToPath(new URL('eslintrc.json', import.meta.url))
-  }
+    overrideConfigFile
+  },
+  homepage: pkg.homepage,
+  tagline: 'Semicolons For All!',
+  version: pkg.version
 }

package.json

@@ -14,17 +14,18 @@
     "url": "https://github.com/standard/semistandard/issues"
   },
   "dependencies": {
-    "eslint": "^7.32.0",
-    "eslint-config-semistandard": "16.0.0",
-    "eslint-config-standard": "16.0.3",
-    "eslint-config-standard-jsx": "10.0.0",
-    "eslint-plugin-import": "^2.24.2",
-    "eslint-plugin-node": "^11.1.0",
-    "eslint-plugin-promise": "^5.1.0",
-    "eslint-plugin-react": "~7.25.1",
-    "standard-engine": "^14.0.1"
+    "eslint": "^8.20.0",
+    "eslint-config-semistandard": "^17.0.0",
+    "eslint-config-standard": "17.0.0",
+    "eslint-config-standard-jsx": "^11.0.0",
+    "eslint-plugin-import": "^2.26.0",
+    "eslint-plugin-n": "^15.2.4",
+    "eslint-plugin-promise": "^6.0.0",
+    "eslint-plugin-react": "^7.30.1",
+    "standard-engine": "^15.0.0"
   },
   "devDependencies": {
+    "installed-check": "^6.0.3",
     "merge": "^2.1.1",
     "mkdirp": "^1.0.4",
     "rimraf": "^3.0.2",
@@ -33,7 +34,7 @@
     "tape": "^5.3.1"
   },
   "engines": {
-    "node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+    "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
   },
   "homepage": "https://github.com/standard/semistandard",
   "keywords": [
@@ -71,7 +72,7 @@
     "url": "https://github.com/standard/semistandard.git"
   },
   "scripts": {
-    "test": "standard && tape test/*.js"
+    "test": "standard && installed-check --engine-check --engine-no-dev && tape test/*.js"
   },
   "standard": {
     "ignore": "tmp/**"

test/api.js

@@ -4,15 +4,24 @@ import semistandard from '../index.js'
 
 const filePath = resolve('./bin/cmd.js')
 
-test('api usage', function (t) {
-  t.plan(6)
-  semistandard.lintFiles(['bin/cmd.js'], {}, function (err, result) {
-    t.error(err, 'no error while linting')
-    t.equal(typeof result, 'object', 'result is an object')
-    t.equal(result.errorCount, 7, 'error count 7')
+test('api: lintFiles', async (t) => {
+  t.plan(5)
+  const [result] = await semistandard.lintFiles([filePath])
+  t.equal(typeof result, 'object', 'result is an object')
 
-    t.equal(resolve(result.results[0].filePath), filePath, 'error filepath correct')
-    t.equal(result.results[0].messages[0].message, 'Missing semicolon.', 'first missing semicolon message')
-    t.equal(result.results[0].messages[0].message, 'Missing semicolon.', 'second missing semicolon message')
-  })
+  t.equal(result.errorCount, 7, 'error count 7')
+
+  t.equal(resolve(result.filePath), filePath, 'error filepath correct')
+  t.equal(result.messages[0].message, 'Missing semicolon.', 'first missing semicolon message')
+  t.equal(result.messages[1].message, 'Missing semicolon.', 'second missing semicolon message')
+})
+
+test('api: lintText', async (t) => {
+  t.plan(4)
+  const [result] = await semistandard.lintText('console.log("hi there")\n')
+
+  t.equal(typeof result, 'object', 'result is an object')
+  t.equal(result.errorCount, 2, 'error count 2')
+  t.equal(result.messages[0].message, 'Strings must use singlequote.', 'singlequote message')
+  t.equal(result.messages[1].message, 'Missing semicolon.', 'missing semicolon message')
 })