wallet-core/node_modules/fs-extra/docs/copy-sync.md

38 lines
1.4 KiB
Markdown
Raw Normal View History

2017-05-24 15:10:37 +02:00
# copySync(src, dest, [options])
Copy a file or directory. The directory can have contents. Like `cp -r`.
- `src` `<String>`
- `dest` `<String>`
- `options` `<Object>`
- `overwrite` `<boolean>`: overwrite existing file or directory, default is `true`. _Note that the copy operation will silently fail if you set this to `false` and the destination exists._ Use the `errorOnExist` option to change this behavior.
- `errorOnExist` `<boolean>`: when `overwrite` is `false` and the destination exists, throw an error. Default is `false`.
- `dereference` `<boolean>`: dereference symlinks, default is `false`.
- `preserveTimestamps` `<boolean>`: will set last modification and access times to the ones of the original source files, default is `false`.
- `filter` `<Function>`: Function to filter copied files. Return `true` to include, `false` to exclude. This can also be a RegExp, however this is deprecated (See [issue #239](https://github.com/jprichardson/node-fs-extra/issues/239) for background).
## Example:
```js
const fs = require('fs-extra')
// copy file
fs.copySync('/tmp/myfile', '/tmp/mynewfile')
// copy directory, even if it has subdirectories or files
fs.copySync('/tmp/mydir', '/tmp/mynewdir')
```
**Using filter function**
```js
const fs = require('fs-extra')
const filterFunc = (src, dest) => {
// your logic here
// it will be copied if return true
}
fs.copySync('/tmp/mydir', '/tmp/mynewdir', { filter: filterFunc })
```