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feat: support ESLint 8.x
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BREAKING CHANGE: Requires Node@^12.22.0 || ^14.17.0 || >=16.0.0
BREAKING CHANGE: Requires ESLint@^6.0.0 || ^7.0.0 || ^8.0.0
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MichaelDeBoey committed Oct 10, 2021
1 parent 5bb9b02 commit 18f79ec
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10 changes: 5 additions & 5 deletions .github/workflows/checks.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -33,14 +33,14 @@ jobs:
strategy:
fail-fast: false
matrix:
node-version: [10.x, 12.x, 13.x, 14.x]
eslint-version: [6, 7]
node-version: [12, 14, 16]
eslint-version: [6, 7, 8]
runs-on: ubuntu-latest

steps:
- uses: actions/checkout@v2
- name: Use Node.js ${{ matrix.node-version }}
uses: actions/setup-node@v2-beta
uses: actions/setup-node@v2
with:
node-version: ${{ matrix.node-version }}
- name: install with eslint v${{matrix.eslint-version }}
Expand All @@ -66,9 +66,9 @@ jobs:

steps:
- uses: actions/checkout@v2
- uses: actions/setup-node@v2-beta
- uses: actions/setup-node@v2
with:
node-version: 12.x
node-version: 16
- name: install
run: npm ci
- name: prettier
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4 changes: 2 additions & 2 deletions .github/workflows/release.yaml
Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,9 @@ jobs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- uses: actions/setup-node@v2-beta
- uses: actions/setup-node@v2
with:
node-version: '12.x'
node-version: 16

- uses: actions/cache@v2
with:
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1,199 changes: 715 additions & 484 deletions package-lock.json

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24 changes: 12 additions & 12 deletions package.json
Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,7 @@
]
},
"dependencies": {
"@typescript-eslint/experimental-utils": "^4.11.1",
"@typescript-eslint/experimental-utils": "^5.0.0-0",
"require-relative": "^0.8.7"
},
"devDependencies": {
Expand All @@ -93,25 +93,25 @@
"@semantic-release/changelog": "^5.0.1",
"@semantic-release/git": "^9.0.0",
"@types/dedent": "^0.7.0",
"@types/eslint": "^7.2.6",
"@types/eslint": "^7.28.0",
"@types/jest": "^26.0.19",
"@types/node": "^12.19.11",
"@types/prettier": "^2.1.6",
"@types/require-relative": "^0.8.0",
"@typescript-eslint/eslint-plugin": "^4.11.1",
"@typescript-eslint/parser": "^4.11.1",
"@typescript-eslint/eslint-plugin": "^5.0.0-0",
"@typescript-eslint/parser": "^5.0.0-0",
"babel-jest": "^26.6.3",
"babel-plugin-replace-ts-export-assignment": "^0.0.2",
"dedent": "^0.7.0",
"eslint": "^7.17.0",
"eslint-config-ackama": "^2.0.1",
"eslint": "^8.0.0",
"eslint-config-ackama": "^2.2.0",
"eslint-plugin-eslint-comments": "^3.2.0",
"eslint-plugin-eslint-plugin": "^2.3.0",
"eslint-plugin-import": "^2.22.1",
"eslint-plugin-jest": "^24.1.3",
"eslint-plugin-jest-formatting": "^2.0.0",
"eslint-plugin-import": "^2.24.2",
"eslint-plugin-jest": "^25.0.1",
"eslint-plugin-jest-formatting": "^2.0.1",
"eslint-plugin-node": "^11.1.0",
"eslint-plugin-prettier": "^3.3.0",
"eslint-plugin-prettier": "^3.4.1",
"husky": "^4.3.6",
"jest": "^26.6.3",
"jest-runner-eslint": "^0.10.0",
Expand All @@ -124,10 +124,10 @@
"typescript": "^4.1.3"
},
"peerDependencies": {
"eslint": ">=5"
"eslint": "^6.0.0 || ^7.0.0 || ^8.0.0"
},
"engines": {
"node": ">=10"
"node": "^12.22.0 || ^14.17.0 || >=16.0.0"
},
"release": {
"plugins": [
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8 changes: 4 additions & 4 deletions src/index.ts
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import ESLint from 'eslint';
import { Linter, Rule } from 'eslint';
import { readdirSync } from 'fs';
import { join, parse } from 'path';

Expand All @@ -16,7 +16,7 @@ const rules = readdirSync(rulesDir)
);

const allRules = Object.keys(rules).reduce<
Record<string, ESLint.Linter.RuleLevel>
Record<string, Linter.RuleLevel>
>(
(theRules, key) => ({
...theRules,
Expand All @@ -25,7 +25,7 @@ const allRules = Object.keys(rules).reduce<
{}
);

interface PluginConfig extends ESLint.Linter.Config {
interface PluginConfig extends Linter.Config {
plugins: ['eslint-config'];
}

Expand All @@ -35,7 +35,7 @@ const plugin: {
PluginConfig & Required<Pick<PluginConfig, 'rules'>>
> &
Record<string, PluginConfig>;
rules: Record<string, ESLint.Rule.RuleModule>;
rules: Record<string, Rule.RuleModule>;
} = {
configs: {
'all': {
Expand Down
1 change: 0 additions & 1 deletion src/rules/no-deprecated-rules.ts
Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,6 @@ export = ESLintUtils.RuleCreator(name => name)({
type: 'problem',
docs: {
description: 'Checks for usage of deprecated eslint rules',
category: 'Best Practices',
recommended: 'warn',
suggestion: true
},
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1 change: 0 additions & 1 deletion src/rules/no-invalid-config.ts
Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,6 @@ export = ESLintUtils.RuleCreator(name => name)({
type: 'problem',
docs: {
description: 'Checks that the config exported by a file is valid',
category: 'Best Practices',
recommended: 'error'
},
messages: {
Expand Down
1 change: 0 additions & 1 deletion src/rules/no-unknown-rules.ts
Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ export = ESLintUtils.RuleCreator(name => name)({
type: 'problem',
docs: {
description: 'Ensures that all rules are known',
category: 'Best Practices',
recommended: 'error'
},
messages: {
Expand Down
1 change: 0 additions & 1 deletion src/rules/sort-rules.ts
Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,6 @@ export = ESLintUtils.RuleCreator(name => name)({
type: 'problem',
docs: {
description: 'Ensures that rules are sorted in a consistent order',
category: 'Best Practices',
recommended: false
},
fixable: 'code',
Expand Down
39 changes: 16 additions & 23 deletions src/rules/utils.ts
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import ESLint from 'eslint';
import { CLIEngine, Linter } from 'eslint';
import requireRelative from 'require-relative';
import { runInNewContext } from 'vm';

Expand Down Expand Up @@ -32,25 +32,25 @@ const relativeRequire = (name: string): unknown =>
relativeRequire.resolve = (name: string): string =>
requireRelative.resolve(name, process.cwd());

const compileConfigCodeCache = new Map<string, ESLint.Linter.Config>();
const compileConfigCodeCache = new Map<string, Linter.Config>();

const compileConfigCode = (fileCode: string): ESLint.Linter.Config => {
const compileConfigCode = (fileCode: string): Linter.Config => {
return getsertCache(
compileConfigCodeCache,
fileCode,
() =>
(runInNewContext(fileCode, {
module: { exports: {} },
require: relativeRequire
}) ?? {}) as ESLint.Linter.Config,
}) ?? {}) as Linter.Config,
'compileConfigCode'
);
};

const createCliEngineCache = new Map<string, ESLint.CLIEngine>();
const createCliEngineCache = new Map<string, CLIEngine>();

const createCLIEngine = (config: ESLint.Linter.Config): ESLint.CLIEngine => {
const extraConfig: ESLint.Linter.Config = {
const createCLIEngine = (config: Linter.Config): CLIEngine => {
const extraConfig: Linter.Config = {
parserOptions: {
...config.parserOptions,
project: require.resolve('../../tsconfig.fake.json'),
Expand All @@ -72,7 +72,7 @@ const createCLIEngine = (config: ESLint.Linter.Config): ESLint.CLIEngine => {
createCliEngineCache,
JSON.stringify(config),
() =>
new ESLint.CLIEngine({
new CLIEngine({
useEslintrc: false,
ignorePath: pathToBlankFile,
ignorePattern: ['!node_modules/*'],
Expand All @@ -88,7 +88,7 @@ const createCLIEngine = (config: ESLint.Linter.Config): ESLint.CLIEngine => {
};

interface ConfigInfo {
deprecatedRules: ESLint.CLIEngine.DeprecatedRuleUse[];
deprecatedRules: CLIEngine.DeprecatedRuleUse[];
unknownRules: string[];
errors: ESLintError[];
}
Expand All @@ -107,10 +107,7 @@ const ensureArray = <T>(v: T | T[] = []): T[] => (Array.isArray(v) ? v : [v]);
* Merging is done at the top level only, and based on explicit named properties,
* so any additional properties on either config will be lost.
*/
const mergeConfigs = (
a: ESLint.Linter.Config,
b: ESLint.Linter.Config
): ESLint.Linter.Config => ({
const mergeConfigs = (a: Linter.Config, b: Linter.Config): Linter.Config => ({
parser: b.parser ?? a.parser,
parserOptions: { ...a.parserOptions, ...b.parserOptions },
processor: b.processor ?? a.processor,
Expand All @@ -126,9 +123,7 @@ const mergeConfigs = (
rules: { ...a.rules, ...b.rules }
});

const extractRelevantConfigs = (
config: ESLint.Linter.Config
): ESLint.Linter.Config[] => [
const extractRelevantConfigs = (config: Linter.Config): Linter.Config[] => [
{ ...config, overrides: [] },
...(config.overrides ?? [])
.map(override =>
Expand Down Expand Up @@ -279,9 +274,9 @@ const parseESLintError = (error: Error): ESLintError => {
};

const followErrorPathToConfig = (
config: ESLint.Linter.Config,
config: Linter.Config,
error: ESLintError
): ESLint.Linter.Config => {
): Linter.Config => {
if (!error.path || !config.overrides) {
return config;
}
Expand All @@ -296,7 +291,7 @@ const followErrorPathToConfig = (
};

const tryRemoveErrorPointFromConfig = (
config: ESLint.Linter.Config,
config: Linter.Config,
error: ESLintError
): boolean => {
const configToDeleteFrom = followErrorPathToConfig(config, error);
Expand Down Expand Up @@ -350,9 +345,7 @@ const tryRemoveErrorPointFromConfig = (
return false;
};

const collectConfigInfoFromESLint = (
config: ESLint.Linter.Config
): ConfigInfo => {
const collectConfigInfoFromESLint = (config: Linter.Config): ConfigInfo => {
const theConfig = { rules: {}, ...config };
const errors: ESLintError[] = [];
let counter = 0;
Expand Down Expand Up @@ -406,7 +399,7 @@ const collectConfigInfoCache = new Map<string, ConfigInfo>();
* Info about any `overrides` the `config` might have will be collected and
* merged into the returned info object.
*/
const collectConfigInfo = (config: ESLint.Linter.Config): ConfigInfo => {
const collectConfigInfo = (config: Linter.Config): ConfigInfo => {
return getsertCache(
collectConfigInfoCache,
JSON.stringify(config),
Expand Down
2 changes: 0 additions & 2 deletions test/helpers.ts
Original file line number Diff line number Diff line change
Expand Up @@ -80,7 +80,6 @@ export const mockEslintPluginPrettier = (): void => {
type: 'problem',
docs: {
description: 'Fake rule that is deprecated, for use in testing',
category: 'Best Practices',
recommended: 'warn'
},
deprecated: true,
Expand All @@ -99,7 +98,6 @@ export const mockEslintPluginPrettier = (): void => {
type: 'problem',
docs: {
description: 'Fake rule that always throws, for use in testing',
category: 'Best Practices',
recommended: 'warn'
},
messages: {},
Expand Down

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