lbundle/dist/helpers/bundle-bin-if-needed.mjs

Small zero-configuration bundler build on top of Rollup.js and SWC for NPM libraries

import path from 'path';
import { rollup } from 'rollup';
import { nodeResolve } from '@rollup/plugin-node-resolve';
import commonjs from '@rollup/plugin-commonjs';
import { swc } from 'rollup-plugin-swc3';
import { typescriptPaths } from 'rollup-plugin-typescript-paths';
import PeerDepsExternalPlugin from 'rollup-plugin-peer-deps-external';
import json from '@rollup/plugin-json';
import { getSwcConfig } from './get-swc-config.mjs';
import { jsExtensions } from '../constants/js-extensions.mjs';
import { isNil } from '../utils/checks.mjs';
import { stylesExtensions } from '../constants/styles-extensions.mjs';

const bundleBinIfNeeded = async (ctx)=>{
    const { pkg, pkgPath, options, binOutput } = ctx;
    if (isNil(pkg['bin:source']) || isNil(binOutput)) return;
    const bundle = await rollup({
        input: path.resolve(options.cwd, pkg['bin:source']),
        plugins: [
            PeerDepsExternalPlugin({
                includeDependencies: true,
                packageJsonPath: pkgPath
            }),
            typescriptPaths({
                preserveExtensions: true
            }),
            json(),
            swc({
                ...getSwcConfig(ctx, binOutput),
                tsconfig: ctx.tsconfigPath ?? false
            }),
            commonjs({
                extensions: jsExtensions
            }),
            nodeResolve({
                rootDir: options.cwd,
                extensions: [
                    ...jsExtensions,
                    ...stylesExtensions
                ]
            })
        ]
    });
    await bundle.write(binOutput);
};

export { bundleBinIfNeeded };
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