@code-pushup/eslint-plugin/src/lib/meta/versions/legacy.js

Code PushUp plugin for detecting problems in source code using ESLint.📋

import { distinct, exists, toArray, ui } from '@code-pushup/utils';
import { setupESLint } from '../../setup.js';
import { isRuleOff, optionsFromRuleEntry } from '../parse.js';
export async function loadRulesForLegacyConfig({ eslintrc, patterns, }) {
    const eslint = await setupESLint(eslintrc);
    const configs = await toArray(patterns).reduce(async (acc, pattern) => [
        ...(await acc),
        (await eslint.calculateConfigForFile(pattern)),
    ], Promise.resolve([]));
    const rulesIds = distinct(configs.flatMap(config => Object.keys(config.rules ?? {})));
    const rulesMeta = eslint.getRulesMetaForResults([
        // eslint-disable-next-line @typescript-eslint/consistent-type-assertions
        {
            messages: rulesIds.map(ruleId => ({ ruleId })),
            suppressedMessages: [],
        },
    ]);
    return configs
        .flatMap(config => Object.entries(config.rules ?? {}))
        .map(([id, entry]) => {
        if (entry == null || isRuleOff(entry)) {
            return null;
        }
        const ruleMeta = rulesMeta[id];
        if (!ruleMeta) {
            ui().logger.warning(`Metadata not found for ESLint rule ${id}`);
            return null;
        }
        // ignoring meta.defaultOptions to match legacy config handling in calculateConfigForFile
        const { defaultOptions: _, ...meta } = ruleMeta;
        const options = optionsFromRuleEntry(entry);
        return { id, meta, options };
    })
        .filter(exists);
}
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