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| author | Philipp Tanlak <philipp.tanlak@gmail.com> | 2025-11-24 20:54:57 +0100 |
|---|---|---|
| committer | Philipp Tanlak <philipp.tanlak@gmail.com> | 2025-11-24 20:57:48 +0100 |
| commit | b1e2c8fd5cb5dfa46bc440a12eafaf56cd844b1c (patch) | |
| tree | 49d360fd6cbc6a2754efe93524ac47ff0fbe0f7d /node_modules/fs-extra/lib/fs | |
Docs
Diffstat (limited to 'node_modules/fs-extra/lib/fs')
| -rw-r--r-- | node_modules/fs-extra/lib/fs/index.js | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/node_modules/fs-extra/lib/fs/index.js b/node_modules/fs-extra/lib/fs/index.js new file mode 100644 index 0000000..3c3ec51 --- /dev/null +++ b/node_modules/fs-extra/lib/fs/index.js @@ -0,0 +1,140 @@ +'use strict' +// This is adapted from https://github.com/normalize/mz +// Copyright (c) 2014-2016 Jonathan Ong me@jongleberry.com and Contributors +const u = require('universalify').fromCallback +const fs = require('graceful-fs') + +const api = [ + 'access', + 'appendFile', + 'chmod', + 'chown', + 'close', + 'copyFile', + 'fchmod', + 'fchown', + 'fdatasync', + 'fstat', + 'fsync', + 'ftruncate', + 'futimes', + 'lchmod', + 'lchown', + 'link', + 'lstat', + 'mkdir', + 'mkdtemp', + 'open', + 'opendir', + 'readdir', + 'readFile', + 'readlink', + 'realpath', + 'rename', + 'rm', + 'rmdir', + 'stat', + 'symlink', + 'truncate', + 'unlink', + 'utimes', + 'writeFile' +].filter(key => { + // Some commands are not available on some systems. Ex: + // fs.cp was added in Node.js v16.7.0 + // fs.lchown is not available on at least some Linux + return typeof fs[key] === 'function' +}) + +// Export cloned fs: +Object.assign(exports, fs) + +// Universalify async methods: +api.forEach(method => { + exports[method] = u(fs[method]) +}) + +// We differ from mz/fs in that we still ship the old, broken, fs.exists() +// since we are a drop-in replacement for the native module +exports.exists = function (filename, callback) { + if (typeof callback === 'function') { + return fs.exists(filename, callback) + } + return new Promise(resolve => { + return fs.exists(filename, resolve) + }) +} + +// fs.read(), fs.write(), fs.readv(), & fs.writev() need special treatment due to multiple callback args + +exports.read = function (fd, buffer, offset, length, position, callback) { + if (typeof callback === 'function') { + return fs.read(fd, buffer, offset, length, position, callback) + } + return new Promise((resolve, reject) => { + fs.read(fd, buffer, offset, length, position, (err, bytesRead, buffer) => { + if (err) return reject(err) + resolve({ bytesRead, buffer }) + }) + }) +} + +// Function signature can be +// fs.write(fd, buffer[, offset[, length[, position]]], callback) +// OR +// fs.write(fd, string[, position[, encoding]], callback) +// We need to handle both cases, so we use ...args +exports.write = function (fd, buffer, ...args) { + if (typeof args[args.length - 1] === 'function') { + return fs.write(fd, buffer, ...args) + } + + return new Promise((resolve, reject) => { + fs.write(fd, buffer, ...args, (err, bytesWritten, buffer) => { + if (err) return reject(err) + resolve({ bytesWritten, buffer }) + }) + }) +} + +// Function signature is +// s.readv(fd, buffers[, position], callback) +// We need to handle the optional arg, so we use ...args +exports.readv = function (fd, buffers, ...args) { + if (typeof args[args.length - 1] === 'function') { + return fs.readv(fd, buffers, ...args) + } + + return new Promise((resolve, reject) => { + fs.readv(fd, buffers, ...args, (err, bytesRead, buffers) => { + if (err) return reject(err) + resolve({ bytesRead, buffers }) + }) + }) +} + +// Function signature is +// s.writev(fd, buffers[, position], callback) +// We need to handle the optional arg, so we use ...args +exports.writev = function (fd, buffers, ...args) { + if (typeof args[args.length - 1] === 'function') { + return fs.writev(fd, buffers, ...args) + } + + return new Promise((resolve, reject) => { + fs.writev(fd, buffers, ...args, (err, bytesWritten, buffers) => { + if (err) return reject(err) + resolve({ bytesWritten, buffers }) + }) + }) +} + +// fs.realpath.native sometimes not available if fs is monkey-patched +if (typeof fs.realpath.native === 'function') { + exports.realpath.native = u(fs.realpath.native) +} else { + process.emitWarning( + 'fs.realpath.native is not a function. Is fs being monkey-patched?', + 'Warning', 'fs-extra-WARN0003' + ) +} |