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index.ts
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/* This file is a part of @mdn/browser-compat-data
* See LICENSE file for more information. */
import fs from 'node:fs/promises';
import path from 'node:path';
import { fileURLToPath } from 'node:url';
import { fdir } from 'fdir';
import { CompatData } from './types/types.js';
import extend from './scripts/lib/extend.js';
import dataFolders from './scripts/lib/data-folders.js';
import { normalizePath, walk } from './utils/index.js';
const dirname = fileURLToPath(new URL('.', import.meta.url));
/**
* Recursively load one or more directories passed as arguments.
* @param dirs The directories to load
* @returns All of the browser compatibility data
*/
const load = async (...dirs: string[]): Promise<CompatData> => {
const result = {};
for (const dir of dirs) {
const paths = new fdir()
.withBasePath()
.filter((fp) => fp.endsWith('.json'))
.crawl(path.join(dirname, dir))
.sync() as string[];
for (const fp of paths) {
try {
const rawcontents = await fs.readFile(fp);
const contents: CompatData = JSON.parse(rawcontents.toString('utf8'));
// Add source_file props
const walker = walk(undefined, contents);
for (const { compat } of walker) {
compat.source_file = normalizePath(path.relative(dirname, fp));
}
extend(result, contents);
/* c8 ignore start */
} catch (e) {
// Skip invalid JSON. Tests will flag the problem separately.
continue;
}
/* c8 ignore stop */
}
}
return result as CompatData;
};
export default await load(...dataFolders);