56 lines
2.1 KiB
JavaScript
56 lines
2.1 KiB
JavaScript
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import path from "path";
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import { promises, constants } from "fs";
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import { Sema } from "next/dist/compiled/async-sema";
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import isError from "./is-error";
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const COPYFILE_EXCL = constants.COPYFILE_EXCL;
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export async function recursiveCopy(source, dest, { concurrency = 32, overwrite = false, filter = ()=>true } = {}) {
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const cwdPath = process.cwd();
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const from = path.resolve(cwdPath, source);
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const to = path.resolve(cwdPath, dest);
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const sema = new Sema(concurrency);
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// deep copy the file/directory
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async function _copy(item, lstats) {
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const target = item.replace(from, to);
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await sema.acquire();
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if (!lstats) {
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// after lock on first run
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lstats = await promises.lstat(from);
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}
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// readdir & lstat do not follow symbolic links
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// if part is a symbolic link, follow it with stat
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let isFile = lstats.isFile();
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let isDirectory = lstats.isDirectory();
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if (lstats.isSymbolicLink()) {
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const stats = await promises.stat(item);
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isFile = stats.isFile();
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isDirectory = stats.isDirectory();
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}
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if (isDirectory) {
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try {
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await promises.mkdir(target, {
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recursive: true
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});
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} catch (err) {
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// do not throw `folder already exists` errors
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if (isError(err) && err.code !== "EEXIST") {
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throw err;
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}
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}
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sema.release();
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const files = await promises.readdir(item, {
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withFileTypes: true
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});
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await Promise.all(files.map((file)=>_copy(path.join(item, file.name), file)));
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} else if (isFile && // before we send the path to filter
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// we remove the base path (from) and replace \ by / (windows)
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filter(item.replace(from, "").replace(/\\/g, "/"))) {
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await promises.copyFile(item, target, overwrite ? undefined : COPYFILE_EXCL);
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sema.release();
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} else {
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sema.release();
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}
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}
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await _copy(from);
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}
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//# sourceMappingURL=recursive-copy.js.map
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