rollup-plugin-copy-multiple-assets

---

Features

• Copy files and directories with full control
• Multiple source and destination paths
• Concurrent operations with configurable limits
• Watch mode support for automatic re-copying
• Preserve or flatten directory structures
• Verbose logging options
• Overwrite control for existing files
• TypeScript support

Installation

npm install -D @m00nbyte/rollup-plugin-copy-multiple-assets
yarn add -D @m00nbyte/rollup-plugin-copy-multiple-assets

Usage

// rollup.config.js
import copy from '@m00nbyte/rollup-plugin-copy-multiple-assets';

export default {
    plugins: [
        copy([
            {
                source: 'src/favicon.ico',
                destination: 'dist/favicon.ico'
            },
            {
                source: 'src/images',
                destination: 'dist/assets/images'
            },
            {
                source: ['README.md', 'LICENSE'],
                destination: ['dist', 'build']
            }
        ])
    ]
};

Advanced Configuration

// Using the options object format
export default {
    plugins: [
        copy({
            assets: [
                {
                    source: 'src/assets',
                    destination: ['dist/assets', 'public/assets']
                },
                {
                    source: ['src/fonts', 'src/icons'],
                    destination: 'dist/static'
                }
            ],
            verbose: true, // Enable detailed logging
            overwrite: true, // Overwrite existing files
            concurrency: 5, // Limit concurrent operations
            flatten: false // Preserve directory structure
        })
    ]
};

API Reference

The plugin accepts either an array of assets or a configuration object:

Array Format (Simple)

copy([{ source: 'src/file.txt', destination: 'dist/file.txt' }]);

Object Format (Advanced)

copy({
    assets: [...],
    verbose: boolean,
    overwrite: boolean,
    concurrency: number,
    flatten: boolean
});

Asset Object

Property	Type	Required	Description
source	string | string[]	Yes	Single file/directory or array of sources to copy
destination	string | string[]	Yes	Single or multiple destination paths

Options

Option	Type	Default	Description
verbose	boolean	true	Enable detailed console output
overwrite	boolean	true	Overwrite existing files at destination
concurrency	number	10	Maximum concurrent copy operations
flatten	boolean	false	Copy files directly to destination without preserving directory structure

Error Handling

The plugin is designed to be resilient:

• Missing source files are logged as warnings but don't stop the build
• Copy failures are logged but allow other operations to continue
• File permissions errors are caught and reported

Best Practices

• Use absolute paths for clarity when working with nested directories
• Set appropriate concurrency based on your system capabilities (default 10)
• Enable verbose logging during development, disable in production
• Consider file size when setting concurrency for large files
• Test flatten behavior with your specific directory structure

Performance Tips

• Higher concurrency values improve performance but use more system resources
• Use flatten: true when you don't need directory structure (faster)
• Copy entire directories instead of individual files when possible
• Consider file size when setting concurrency limits

Contribution

Feel free to submit issues or pull requests.

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Changelog

License