eslint-plugin-mdx/lib/rules/helpers.js

ESLint Plugin for MDX

import path from 'path';
import { cosmiconfigSync } from 'cosmiconfig';
import { arrayify } from 'eslint-mdx';
import remarkMdx from 'remark-mdx';
import remarkParse from 'remark-parse';
import remarkStringify from 'remark-stringify';
import unified from 'unified';
export const requirePkg = (plugin, prefix, filePath) => {
    if (filePath && /^\.\.?([/\\]|$)/.test(plugin)) {
        plugin = path.resolve(path.dirname(filePath), plugin);
    }
    prefix = prefix.endsWith('-') ? prefix : prefix + '-';
    const packages = [
        plugin,
        plugin.startsWith('@')
            ? plugin.replace('/', '/' + prefix)
            : prefix + plugin,
    ];
    let error;
    for (const pkg of packages) {
        try {
            // eslint-disable-next-line @typescript-eslint/no-require-imports, @typescript-eslint/no-var-requires
            return require(pkg);
        }
        catch (err) {
            if (!error) {
                error = err;
            }
        }
    }
    throw error;
};
let searchSync;
export const remarkProcessor = unified().use(remarkParse).freeze();
export const getRemarkProcessor = (searchFrom, isMdx) => {
    if (!searchSync) {
        searchSync = cosmiconfigSync('remark', {
            packageProp: 'remarkConfig',
        }).search;
    }
    let result;
    try {
        result = searchSync(searchFrom);
    }
    catch (err) {
        // https://github.com/eslint/eslint/issues/11989
        /* istanbul ignore if */
        if (err.code !== 'ENOTDIR' ||
            !/\d+_?\.[a-z]+$/.test(searchFrom)) {
            throw err;
        }
        try {
            result = searchSync(path.dirname(searchFrom));
        }
        catch (_a) {
            /* istanbul ignore next */
            throw err;
        }
    }
    /* istanbul ignore next */
    const { plugins = [], settings } = ((result === null || result === void 0 ? void 0 : result.config) ||
        {});
    try {
        // disable this rule automatically since we already have a parser option `extensions`
        // eslint-disable-next-line node/no-extraneous-require
        plugins.push([require.resolve('remark-lint-file-extension'), false]);
    }
    catch (_b) {
        // just ignore if the package does not exist
    }
    const initProcessor = remarkProcessor().use({ settings }).use(remarkStringify);
    if (isMdx) {
        initProcessor.use(remarkMdx);
    }
    return plugins
        .reduce((processor, pluginWithSettings) => {
        const [plugin, ...pluginSettings] = arrayify(pluginWithSettings);
        return processor.use(
        /* istanbul ignore next */
        typeof plugin === 'string'
            ? requirePkg(plugin, 'remark', result.filepath)
            : plugin, ...pluginSettings);
    }, initProcessor)
        .freeze();
};
//# sourceMappingURL=helpers.js.map