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Code Quality Rank: L5
Monthly Downloads: 0
Programming language: JavaScript
License: MIT License
Tags: Command Line Apps     Stream     Copy     Data     Content     Fast     Files     File     Fs     File System     Contents     Quick     Ncp     Glob     Clone     Cpy     Cp    
Latest version: v8.1.1

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README

cpy

Copy files

Why

  • Fast by using streams.
  • Resilient by using graceful-fs.
  • User-friendly by accepting globs and creating non-existent destination directories.
  • User-friendly error messages.
  • Progress reporting.

Install

$ npm install cpy

Usage

import cpy from 'cpy';

await cpy([
    'source/*.png', // Copy all .png files
    '!source/goat.png', // Ignore goat.png
], 'destination');

// Copy node_modules to destination/node_modules
await cpy('node_modules', 'destination');

// Copy node_modules content to destination
await cpy('node_modules/**', 'destination');

// Copy node_modules structure but skip all files except package.json files
await cpy('node_modules/**/*.json', 'destination');

// Copy all png files into destination without keeping directory structure
await cpy('**/*.png', 'destination', {flat: true});

console.log('Files copied!');

API

cpy(source, destination, options?)

Returns a Promise<string[]> with the destination file paths.

source

Type: string | string[]

Files to copy.

If any of the files do not exist, an error will be thrown (does not apply to globs).

destination

Type: string

Destination directory.

options

Type: object

Options are passed to globby.

In addition, you can specify the below options.

cwd

Type: string\ Default: process.cwd()

Working directory to find source files.

overwrite

Type: boolean\ Default: true

Overwrite existing files.

flat

Type: boolean\ Default: false

Flatten directory structure. All copied files will be put in the same directory.

import cpy from 'cpy';

await cpy('src/**/*.js', 'destination', {
    flat: true
});
rename

Type: string | Function

Filename or function returning a filename used to rename every file in source.

import cpy from 'cpy';

await cpy('foo.js', 'destination', {
    rename: basename => `prefix-${basename}`
});

await cpy('foo.js', 'destination', {
    rename: 'new-name'
});
concurrency

Type: number\ Default: (os.cpus().length || 1) * 2

Number of files being copied concurrently.

ignoreJunk

Type: boolean\ Default: true

Ignores junk files.

filter

Type: Function

Function to filter files to copy.

Receives a source file object as the first argument.

Return true to include, false to exclude. You can also return a Promise that resolves to true or false.

import cpy from 'cpy';

await cpy('foo', 'destination', {
    filter: file => file.extension !== 'nocopy'
});
Source file object
path

Type: string\ Example: '/tmp/dir/foo.js'

Resolved path to the file.

relativePath

Type: string\ Example: 'dir/foo.js' if cwd was '/tmp'

Relative path to the file from cwd.

name

Type: string\ Example: 'foo.js'

Filename with extension.

nameWithoutExtension

Type: string\ Example: 'foo'

Filename without extension.

extension

Type: string\ Example: 'js'

File extension.

Progress reporting

cpy.on('progress', handler)

handler(progress)

Type: Function

progress
{
    completedFiles: number,
    totalFiles: number,
    completedSize: number,
    percent: number
}
  • completedSize is in bytes
  • percent is a value between 0 and 1

Note that the .on() method is available only right after the initial cpy call, so make sure you add a handler before awaiting the promise:

import cpy from 'cpy';

await cpy(source, destination).on('progress', progress => {
    // …
});

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