bundler
An async file dependency bundle parser
API
new Bundler(options: Options) => Bundler
options?.oncycle: (path: string, referrer: string) => void
found circularly dependency callback function
options.resolve(path: string, referrer: string) => string
path resolve function
options.parse(path: string) => { contents?: any, dependencies?: string[] }
file dependencies parse function, support async function
new Bundler(options: Options).parse(input: string) => Promise<File[]>
input: string
path of input file
Examples
const Bundler = require('@nuintun/bundler');
const files = {
'/src/1.js': { contents: 'file 1', dependencies: ['2.js', '4.js'] },
'/src/2.js': { contents: 'file 2', dependencies: ['./3.js', './5.js'] },
'/src/3.js': { contents: 'file 3', dependencies: ['/src/4.js', '/src/6.js'] },
'/src/4.js': { contents: 'file 4', dependencies: ['5.js', './7.js'] },
'/src/5.js': { contents: 'file 5', dependencies: ['6.js', '/src/8.js'] },
'/src/6.js': { contents: 'file 6', dependencies: ['./7.js', '/src/9.js'] },
'/src/7.js': { contents: 'file 7', dependencies: ['8.js'] },
'/src/8.js': { contents: 'file 8', dependencies: ['./9.js'] },
'/src/9.js': { contents: 'file 9', dependencies: [] }
};
const bunder = new Bundler({
resolve: (path, referrer) => {
if (/^\//.test(path)) return path;
const dirname = referrer.replace(/\/[^\/]+$/, '');
return `${dirname}/${path}`.replace(/(\.\/)+/g, '');
},
parse: path => {
return new Promise(resolve => {
const delay = 20;
setTimeout(() => resolve(files[path]), delay);
console.log(`Read: %o, Waiting: %oms`, path, delay);
});
}
});
async function parse(input) {
try {
console.log(await bunder.parse(input));
} catch (error) {
console.error(error);
}
}
parse('/src/1.js');
// Output: [
// {
// path: '/src/9.js',
// contents: 'file 9',
// dependencies: []
// },
// {
// path: '/src/8.js',
// contents: 'file 8',
// dependencies: ['./9.js']
// },
// {
// path: '/src/7.js',
// contents: 'file 7',
// dependencies: ['8.js']
// },
// {
// path: '/src/6.js',
// contents: 'file 6',
// dependencies: ['./7.js', '/src/9.js']
// },
// {
// path: '/src/5.js',
// contents: 'file 5',
// dependencies: ['6.js', '/src/8.js']
// },
// {
// path: '/src/4.js',
// contents: 'file 4',
// dependencies: ['5.js', './7.js']
// },
// {
// path: '/src/3.js',
// contents: 'file 3',
// dependencies: ['/src/4.js', '/src/6.js']
// },
// {
// path: '/src/2.js',
// contents: 'file 2',
// dependencies: ['./3.js', './5.js']
// },
// {
// path: '/src/1.js',
// contents: 'file 1',
// dependencies: ['2.js', '4.js']
// }
//]