Ray-fs NPM | npm.io

ray-fs

A library with easy to use, mind blowing file-system tools for NodeJS. Based on FS! with chainable methods, sync first approach, and amazing UX.

Installation

To install with NPM use:

npm i ray-fs --save

Then attach it to your file using:

const fs = require('ray-fs');

// use code here

Usage

The ray-fs library has the following methods and properties: 1. .value: To return the output of the previous method in the chain.

For example:-

fs
  .lsDir() // gets the list of Directories
  .value // returns the list of Directories

.logVal(): To console.log() the output of the previous method in chain. For example:-

fs
  .lsFile() // gets the list of Files
  .logVal() // logs the list of Files

.cd(dirName): To change the "working-directory" to dirName. A virtual version of shell's cd, it does not allow a movement to directories deeper then depth=1.
.ls(): To get a list of all the Files in the "working-directory".
.exists(fileURL): To check if a FS item (like a File) exists at fileURL.
.isFile(fileURL): To check if fileURL is a File or not! (a Directory maybe)
.isDir(dirURL): To check if dirURL is a Direcotry or not!
.lsMatches(filterFunction): To get a list of all items in the "working-directory" that matches filterFunction.

fs
  // To get a list of all items in the "working-directory" that have names ending in ".js"
  .lsMatches(item => /.js$/.test(item))
  .value // To return that list

Better written as:

fs
  // To get a list of all Javascript Files in the "working-directory"
  .lsMatches(item => fs.isFile(item).value && /.js$/.test(item))
  .value // To return that list

.lsDir(): To get a list of all Directories in the "working-directory".
.lsFile(): To get a list of all Files in the "working-directory".
.version(): To get the current version of ray-fs.
.write(fileURL, content): To write the content into the file at fileURL.
.read(fileURL).value: To read the content of the file at fileURL. The path used must be relative from the root directory of your project, e.g. "./README.md".
.writeJSON(fileURL, json): To write the json into the file at fileURL.
.readJSON(fileURL).value: To read/import the JSON content of the file at fileURL.
.updateJSON(file, callback): TO update the json object in a .json file. For example:

const fs = require('ray-fs');

const file = "june.json";
fs
  .updateJSON(file, (json) => {
    json.oldProp = "replace old prop's value with new value"; 
    json.newProp = "adds a new prop with a new value";
    return json;	
  });

.readArray(fileURL).value: To read/import the content of the file at fileURL as an Array of lines of content.
.push(fileURL, content): To add the content below the existing content of the file at fileURL.
.rm(url): To delete the item at url.
.cp(url, destinationURL): To copy the item at url to destinationURL.
.mv(url, destinationURL): To move the item at url to destinationURL.
.mkdir(dirName): To create a new Directory named dirName.
.logDir(): To log the name of the "working-directory".
.validFileName(fileName): To check if a file name complies with the file naming rules. (beta version)
.validDirName(dirName): To check if a directory name complies with the naming rules. (beta version)
.stream(responseBody, filePath, errorCallback, sucessCallback): To pipe a response.body to a filePath.
.initDir(dirName): To check if a directory exists, if no then create it.
.initDirs(dirName1, dirName2, ...): To check if all of the provided directories exist, if any don't then create them.
.initFile(fileName, fileContent): To check if a file exists, if no then create it, then add the provided fileContent to it. The fileContent paremeter can be passed a JSON object or a String.

Note: The documentation is incomplete, and will be completed soon.

Chaining Functions

Chain functions to make code more readable!

const fs = require('ray-fs');

fs
  .mkdir('myProject')
  .cd('myProject')
  .write('myFile.txt', 'Hello World!')
  .cp('myFile.txt', 'myGreeting.txt')
  .read('myFile.txt')
  .logVal()
  .read('myGreeting.txt')
  .logVal()

The .value prop and the .

Tips

Absolute URL's aren't allowed, instead use .cd() to change the "working-directory" first!
Chain for the betterment of code, don't chain where it dosen't make sense.
This library is not meant to replace fs, it is meant to be an alternative way to write code that can also be written with fs. This library will allow you to write significaltly shorter and clearer code.