xo/dist/lib/handle-ts-files.js

JavaScript/TypeScript linter (ESLint wrapper) with great defaults

import path from 'node:path';
import fs from 'node:fs/promises';
import { getTsconfig, createFilesMatcher } from 'get-tsconfig';
import { tsconfigDefaults as tsConfig, cacheDirName } from './constants.js';
/**
This function checks if the files are matched by the tsconfig include, exclude, and it returns the unmatched files.

If no tsconfig is found, it will create a fallback tsconfig file in the `node_modules/.cache/xo` directory.

@param options
@returns The unmatched files.
*/
export async function handleTsconfig({ cwd, files }) {
    const unincludedFiles = [];
    for (const filePath of files) {
        const result = getTsconfig(filePath);
        if (!result) {
            unincludedFiles.push(filePath);
            continue;
        }
        const filesMatcher = createFilesMatcher(result);
        if (filesMatcher(filePath)) {
            continue;
        }
        unincludedFiles.push(filePath);
    }
    const fallbackTsConfigPath = path.join(cwd, 'node_modules', '.cache', cacheDirName, 'tsconfig.xo.json');
    delete tsConfig.include;
    delete tsConfig.exclude;
    delete tsConfig.files;
    tsConfig.files = unincludedFiles;
    if (unincludedFiles.length > 0) {
        try {
            await fs.mkdir(path.dirname(fallbackTsConfigPath), { recursive: true });
            await fs.writeFile(fallbackTsConfigPath, JSON.stringify(tsConfig, null, 2));
        }
        catch (error) {
            console.error(error);
        }
    }
    return { unincludedFiles, fallbackTsConfigPath };
}
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