Package Exports
- cpy
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (cpy) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
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
const cpy = require('cpy');
(async () => {
await cpy(['source/*.png', '!source/goat.png'], 'destination');
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.
parents
Type: boolean
Default: false
Preserve path structure.
rename
Type: string | Function
Filename or function returning a filename used to rename every file in source
.
const cpy = require('cpy');
(async () => {
await cpy('foo.js', 'destination', {
rename: basename => `prefix-${basename}`
});
})();
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.
const cpy = require('cpy');
(async () => {
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 bytespercent
is a value between0
and1
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:
(async () => {
await cpy(source, destination).on('progress', progress => {
// …
});
})();