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perf: use finishModules (#73)
* perf: use `finishModules` * chore: update deps * style: formatting * test: add test to perf for hook `finishModules` * test: add more tests * refactor: finishModules * refactor: finishModules * perf: use for
1 parent 8a72a8a commit 19fa551

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+1080
-1883
lines changed

‎declarations/ESLintError.d.ts

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@@ -1,7 +1,8 @@
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export default class ESLintError extends WebpackError {
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export default class ESLintError {
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/**
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* @param {string=} messages
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*/
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constructor(messages?: string | undefined);
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name: string;
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stack: string;
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}
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import { WebpackError } from 'webpack';

‎declarations/cjs.d.ts

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@@ -1,2 +1,3 @@
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declare const _exports: typeof import('.').default;
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declare const _exports: typeof plugin.default;
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export = _exports;
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import plugin = require('.');

‎declarations/linter.d.ts

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@@ -28,9 +28,7 @@ export type GenerateReport = (compilation: Compilation) => Promise<void>;
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export type Report = {
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errors?: ESLintError | undefined;
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warnings?: ESLintError | undefined;
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generateReportAsset?:
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| ((compilation: Compilation) => Promise<void>)
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| undefined;
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generateReportAsset?: GenerateReport | undefined;
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};
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export type Reporter = () => Promise<Report>;
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export type Linter = (files: string | string[]) => void;

‎package-lock.json

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‎package.json

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@@ -46,40 +46,40 @@
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"webpack": "^4.0.0 || ^5.0.0"
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},
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"dependencies": {
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"@types/eslint": "^7.2.4",
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"@types/eslint": "^7.2.6",
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"arrify": "^2.0.1",
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"jest-worker": "^26.6.2",
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"micromatch": "^4.0.2",
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"schema-utils": "^3.0.0"
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},
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"devDependencies": {
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"@babel/cli": "^7.12.1",
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"@babel/core": "^7.12.3",
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"@babel/preset-env": "^7.12.1",
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"@babel/cli": "^7.12.10",
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"@babel/core": "^7.12.10",
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"@babel/preset-env": "^7.12.11",
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"@commitlint/cli": "^11.0.0",
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"@commitlint/config-conventional": "^11.0.0",
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"@types/fs-extra": "^9.0.4",
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"@types/fs-extra": "^9.0.6",
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"@types/micromatch": "^4.0.1",
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"@types/webpack": "^4.41.25",
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"@types/webpack": "^4.41.26",
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"@webpack-contrib/eslint-config-webpack": "^3.0.0",
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"babel-eslint": "^10.1.0",
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"babel-jest": "^26.6.3",
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"chokidar": "^3.4.3",
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"cross-env": "^7.0.2",
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"chokidar": "^3.5.1",
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"cross-env": "^7.0.3",
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"del": "^6.0.0",
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"del-cli": "^3.0.1",
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"eslint": "^7.13.0",
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"eslint-config-prettier": "^6.15.0",
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"eslint": "^7.19.0",
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"eslint-config-prettier": "^7.2.0",
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"eslint-plugin-import": "^2.22.1",
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"fs-extra": "^9.0.1",
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"husky": "^4.3.0",
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"fs-extra": "^9.1.0",
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"husky": "^4.3.8",
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"jest": "^26.6.3",
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"lint-staged": "^10.5.1",
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"lint-staged": "^10.5.3",
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"npm-run-all": "^4.1.5",
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"prettier": "^2.1.2",
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"standard-version": "^9.0.0",
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"typescript": "^4.0.5",
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"webpack": "^5.15.0"
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"prettier": "^2.2.1",
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"standard-version": "^9.1.0",
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"typescript": "^4.1.3",
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"webpack": "^5.19.0"
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},
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"keywords": [
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"eslint",

‎src/index.js

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@@ -95,20 +95,31 @@ class ESLintWebpackPlugin {
9595
return;
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}
9797

98-
// @ts-ignore
99-
const processModule = (module) => {
100-
if (module.resource) {
101-
const [file] = module.resource.split('?');
98+
// Gather Files to lint
99+
compilation.hooks.finishModules.tap(ESLINT_PLUGIN, (modules) => {
100+
/** @type {string[]} */
101+
const files = [];
102102

103-
if (file && isMatch(file, wanted) && !isMatch(file, exclude)) {
104-
// Queue file for linting.
105-
lint(file);
103+
// @ts-ignore
104+
for (const { resource } of modules) {
105+
if (resource) {
106+
const [file] = resource.split('?');
107+
108+
if (
109+
file &&
110+
!files.includes(file) &&
111+
isMatch(file, wanted) &&
112+
!isMatch(file, exclude)
113+
) {
114+
files.push(file);
115+
}
106116
}
107117
}
108-
};
109118

110-
// Gather Files to lint
111-
compilation.hooks.succeedModule.tap(ESLINT_PLUGIN, processModule);
119+
if (files.length > 0) {
120+
lint(files);
121+
}
122+
});
112123

113124
// await and interpret results
114125
compilation.hooks.additionalAssets.tapPromise(

‎test/error.test.js

Lines changed: 7 additions & 5 deletions
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@@ -17,11 +17,13 @@ describe('error', () => {
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});
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1919
it('should propagate eslint exceptions as errors', (done) => {
20-
jest.mock('eslint', () => ({
21-
ESLint: function ESLint() {
22-
this.lintFiles = async () => Promise.reject(new Error('Oh no!'));
23-
},
24-
}));
20+
jest.mock('eslint', () => {
21+
return {
22+
ESLint: function ESLint() {
23+
this.lintFiles = async () => Promise.reject(new Error('Oh no!'));
24+
},
25+
};
26+
});
2527

2628
const compiler = pack('good', { threads: false });
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‎test/eslint-lint.test.js

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@@ -0,0 +1,59 @@
1+
import pack from './utils/pack';
2+
3+
describe('eslint lint', () => {
4+
const mockLintFiles = jest.fn().mockReturnValue([]);
5+
6+
beforeAll(() => {
7+
jest.mock('eslint', () => {
8+
return {
9+
ESLint: function ESLint() {
10+
this.lintFiles = mockLintFiles;
11+
},
12+
};
13+
});
14+
});
15+
16+
beforeEach(() => {
17+
mockLintFiles.mockClear();
18+
});
19+
20+
it('should lint one file', (done) => {
21+
const compiler = pack('lint-one', { threads: false });
22+
23+
compiler.run((err) => {
24+
const files = [expect.stringMatching('lint-one-entry.js')];
25+
expect(mockLintFiles).toHaveBeenCalledWith(files);
26+
expect(err).toBeNull();
27+
done();
28+
});
29+
});
30+
31+
it('should lint two files', (done) => {
32+
const compiler = pack('lint-two', { threads: false });
33+
34+
compiler.run((err) => {
35+
const files = [
36+
expect.stringMatching('lint-two-entry.js'),
37+
expect.stringMatching('lint.js'),
38+
];
39+
expect(mockLintFiles).toHaveBeenCalledWith(files);
40+
expect(err).toBeNull();
41+
done();
42+
});
43+
});
44+
45+
it('should lint more files', (done) => {
46+
const compiler = pack('lint-more', { threads: false });
47+
48+
compiler.run((err) => {
49+
const files = [
50+
expect.stringMatching('lint-more-entry.js'),
51+
expect.stringMatching('lint-more.js'),
52+
expect.stringMatching('lint.js'),
53+
];
54+
expect(mockLintFiles).toHaveBeenCalledWith(files);
55+
expect(err).toBeNull();
56+
done();
57+
});
58+
});
59+
});

‎test/fixtures/lint-more-entry.js

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require('./lint-more')

‎test/fixtures/lint-more.js

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require('./lint')

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