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@launchfort/fs-utils

FS Utils

A package that exposes several useful file system utility functions.

Quick Start

npm install @gradealabs/fs-utils -S

import { touch, mkdir } from '@gradealabs/fs-utils'

mkdir('dest/assets')
  .then(() => touch('dest/assets/.keep'))
  .then(() => console.log('done!'))

API

touch(fileName)

Touches a file by setting the existing file's mtime or creating the file if one does not exist. If a file is created it will be a UTF-8 text file.

Example:

import { touch } from '@gradealabs/fs-utils'

touch('.keep')
  .then(() => console.log('touched'))
  .catch(error => console.error(error))

mkdir(dirPath)

Makes a directory path and any directories in the path that don't exist.

Example:

import { mkdir } from '@gradealabs/fs-utils'

mkdir('dest/scripts/vendor')
  .then(() => console.log('done'))
  .catch(error => console.error(error))

rmdir(dirPath)

Removes an empty or non-empty directory.

Example:

import { rmdir, mkdir } from '@gradealabs/fs-utils'

mkdir('src/vendor/bootstrap')
  .then(() => rmdir('src'))
  .then(() => console.log('done'))
  .catch(error => console.error(error))

rmdirfiles(dirPath)

Removes only the files inside a directory, but not the directory itself.

Example:

import { rmdirfiles, mkdir, touch } from '@gradealabs/fs-utils'

Promise.resolve()
  .then(() => mkdir('dist/a'))
  .then(() => mkdir('dist/b'))
  .then(() => touch('dist/file.js'))
  .then(() => rmdirfiles('dist'))
  .then(() => console.log('dist has been cleaned out'))
  .catch(error => console.error(error))

readdir(dirPath, options)

Reads a directory and returns a file listing.

Supported options:

• recursive {default: false} Recursively traverse sub directories
• filesOnly {default: false} Only include files in the listing
• noDot {default: true} Do not include any files that start with '.'
• prefix {default: true} Prefix the files in the list with the dirPath

Example:

import { readdir } from '@gradealabs/fs-utils'

readdir('dest/scripts', { prefix: false, filesOnly: true })
  // Could return an array like: [ 'index.js', 'jquery.min.js' ]
  .then(listing => console.log(listing))
  .catch(error => console.error(error))

cp(src, dest, options)

Copies files and/or directories to a destination location.

Supported options:

• newerOnly {default: false} Only copy the file if newer than destination file
• noDot {default: true} Ignore files that start with '.'

Copying Directories

Directories are copied in their entirety, that is the entire directory itself. However, if you only want the contents of a directory copied then suffix the source directory path with '/' or '\'.

Copying To Directories

To copy to a directory and create it if doesn't exist then suffix the destination directory path with '/' or '\'.

Example:

import { cp } from '@gradealabs/fs-utils'

// Copy all files in src into dest, where dest will be created if it doesn't
// exist already.
// Ends up with something like: dest/index.js, dest/jquery.min.js
cp('src/', 'dest/')
  .then(() => console.log('copied'))
  .catch(error => console.error(error))


// Copy src into dest, where dest will be created if it doesn't exist.
// Ends up with something like: dest/src/index.js, dest/src/jquery.min.js
cp('src', 'dest/')
  .then(() => console.log('copied'))
  .catch(error => console.error(error))

Building

To build the source

npm run build
bpm run build:node

To clean all generated folders

npm run clean

Testing

Unit tests are expected to be colocated next to the module/file they are testing and have the following suffix .test.js.

To run unit tests through istanbul and mocha

npm test

Maintainence

To check what modules in node_modules is outdated

npm run audit

To update outdated modules while respecting the semver rules in the package.json

npm update

To update a module to the latest major version (replacing what you have)

npm install themodule@latest -S (if to save in dependencies)
npm install themodule@latest -D (if to save in devDependencies)