Fsep NPM | npm.io

FSEP

Is a library that promisifies the native node FS operation and brings extras into the mix. Fsep has No Dependency.

Features

Native node.js Fs methods (promisified)
Only Promises

TODO

copy
ensureLink
move
outputJson
readJson
remove
writeJson

API

walk
exist
mkdirs
emptyFolder
outputFile
outputFolder
ensureFile
ensureFolder
ensureSymlink
scaffold
readFiles
readWriteLine
readFolder
removeFile
removeFolder
writeFolder

walk(path, options)

options: Object - path: String Path to directory - filters: Array RegExp strings - relative: Boolean Return paths relative or absolute. Default is false - ignoreDot: Boolean Ignores files beginning with a dot. Default is true

const Fsep = require('fsep');
const path = '/home/user/directory';
const options = {
	relative: false,
	ignoreDot: true,
	filters: ['.DS_Store']
};

Fsep.walk(path, options).then(function (files) {
	console.log(files);
}).catch(function (error) {
	console.error(error);
});

exist(path)

Checks if a path exists. Returns true or false. Uses Fs.stat.

const Fsep = require('fsep');

Fsep.exist(path).then(function (exist) {
	console.log(exist); // true || false
}).catch(function (error) {
	console.error(error);
});

mkdirs(path ,mode)

Creates the path folders if they do not exist. Accepts a mode parameter.

const Fsep = require('fsep');
const path = '/non/existing/dir';

Fsep.mkdirs(path).then(function () {
	console.log('done');
}).catch(function (error) {
	console.error(error);
});

outputFile(path, data, options)

Creates a file and also directories if non existent. Overwrites file if it exists.

const Fsep = require('fsep');

var path = '/non/existing/path/file.js';
var data = 'hello';

Fsep.outputFile(path, data).then(function () {
	console.log('done');
}).catch(function (error) {
	console.error(error);
});

outputFolder(path ,mode, cwd)

Creates folders in path if they do not exist.

const Fsep = require('fsep');
const path = '/non/existing/dir';

Fsep.outputFolder(path).then(function () {
	console.log('done');
}).catch(function (error) {
	console.error(error);
});

ensureFolder(path, ,mode, cwd)

Creates folders in path if they do not exist.

const Fsep = require('fsep');
const path = '/non/existing/dir';

Fsep.ensureFolder(path).then(function () {
	console.log('done');
}).catch(function (error) {
	console.error(error);
});

ensureFile(path, data, options, mode || cwd)

Ensures that the file and its directory structure exists. If the file already exists it is not modified.

const Fsep = require('fsep');

var path = '/non/existing/dirs/and/file.txt';

Fsep.ensureFile(path).then(function () {
	console.log('done');
}).catch(function (error) {
	console.error(error);
});

ensureSymlink(source, target, type, mode || cwd)

Ensures that the symlink and its directory structure exists. If the file already exists it is not modified.

const Fsep = require('fsep');
const src = '/existing/folders/file.txt';
const dst = '/non/existing/folders/file.txt';

Fsep.ensureSymlink(source, target).then(function () {
	console.log('symlink created');
}).catch(function (error) {
	console.error(error);
});

emptyFolder(path, safe)

Deletes the contents of a directory if it exists and is not empty. This is recursive so be careful. Same as rm -r.

path: String Path to the direcotry to empty.
safe: Boolean Default is true which throws an error if you try to empty the root of the file system.

const Fsep = require('fsep');

var path = '/home/username/dirs'; // contains folders and files

Fsep.emptyFolder(path).then(function () {
	console.log('done');
}).catch(function (error) {
	console.error(error);
});

scaffold(path, data)

Requires a path and an object or array. Makes files and folders based on object or array. End points are assumed to be file names.

const Fsep = require('fsep');

const data = {
	one: 'one.txt',
	two: 'two.txt',
	array: [
		'three.txt',
		'four.txt'
	]
};

Fsep.scaffold(path, data).then(function () {
	console.log('done');
	/* output
		one
			one.txt
		two
			two.txt
		array
			three.txt
			four.txt
	*/
}).catch(function (error) {
	console.error(error);
});

readFiles(paths, options)

Reads an array of files asynchronously. The result is an array of files.

const Fsep = require('fsep');

var paths = [
	'/one.txt',
	'two.txt'
];

Fsep.readFiles(paths).then(function (files) {
	console.log(files);
}).catch(function (error) {
	console.error(error);
});

readWriteLine(options)

Reads and writes a file line by line. The line function allows line manipulation.

const Fsep = require('fsep');

var options = {
	read: { // node stream options
		path: './rw/one.txt'
	},
	write: { // node stream options
		path: './rw/two.txt',
		flags: 'a'

	},
	line: function (line) {
		return line.toUpperCase();
	}
};

Fsep.readWriteLine(options).then(function () {
	console.log('done');
}).catch(function (error) {
	console.error(error);
});