@tsuk1ko/fsa-promises
v1.0.3
Published
Web File System API to Node fs promises API.
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fsa-promises
Web File System API to Node fs promises API.
Learn more about: File System API
[!NOTE]
This library was originally implemented for use with isomorphic-git. But the actual test found that the performance was so bad and there were inexplicable problems, so I gave up. ☹️
Install
# npm
npm install @tsuk1ko/fsa-promises
# yarn
yarn add @tsuk1ko/fsa-promises
# bun
bun add @tsuk1ko/fsa-promises
Usage
import { FsaPromises } from 'fsa-promises';
// Use `navigator.storage.getDirectory()` as root
const fs = new FsaPromises();
// Use directory "path/to/some/dir" of `navigator.storage.getDirectory()` as root,
// will be create recursively if not exists
const fs = new FsaPromises('path/to/some/dir');
// Use `showDirectoryPicker()` to select a directory as root
const fs = new FsaPromises(showDirectoryPicker({ mode: 'readwrite' }));
// Use almost the same way as node fsPromises module
await fs.writeFile('file.txt', 'hello world');
APIs
new FsaPromises([options])
options
can be string
, FileSystemDirectoryHandle
, Promise<FileSystemDirectoryHandle>
or an FsaPromisesOptions
object.
interface FsaPromisesOptions {
root?: string | FileSystemDirectoryHandle | Promise<FileSystemDirectoryHandle>;
useSyncAccessHandleForFile?: boolean;
}
useSyncAccessHandleForFile
When it is true
, the library will use createSyncAccessHandle()
instead of createWritable()
to write file.
It is only usable inside dedicated Web Workers with the origin private file system.
For more information, please check here.
readFile(path[, options])
Refer to fsPromises.readFile.
flag
and signal
are not supported.
writeFile(file, data[, options])
Refer to fsPromises.writeFile.
mode
is not supported.
flush
is usable only when useSyncAccessHandleForFile
is true
.
signal
is not usable when useSyncAccessHandleForFile
is true
.
unlink(path)
Refer to fsPromises.unlink.
readdir(path[, options])
Refer to fsPromises.readdir.
encoding
only support undefine
, null
or "buffer"
.
mkdir(path[, options])
Refer to fsPromises.mkdir.
mode
is not supported.
rmdir(path[, options])
Refer to fsPromises.rmdir.
maxRetries
and retryDelay
are not supported.
exist(path)
This API does not exist in node fsPromises. It is provided for convenience.
stat(path[, options])
Refer to fsPromises.stat.
lstat(path[, options])
Same as stat()
because symlink isn't implemented.
readlink(path[, options])
Not implemented, don't use.
symlink(target, path[, type])
Not implemented, don't use.
chmod(path, mode)
Do nothing, just for compatibility.