@oystehr/sdk/rollup.config-cjs.mjs

Oystehr SDK

import commonjs from '@rollup/plugin-commonjs';
import json from '@rollup/plugin-json';
import resolve from '@rollup/plugin-node-resolve';
import terser from '@rollup/plugin-terser';
import typescript from '@rollup/plugin-typescript';
import { mkdirSync, writeFileSync } from 'fs';
import externals from 'rollup-plugin-node-externals';

const extensions = ['.ts', '.json'];

// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
const sourcemapPathTransform = (path) => path.replaceAll('\\', '/').replaceAll('../../../src', '../../src');

export default [
  {
    // Use the regular index.ts and transform to CommonJS
    input: 'src/index.ts',
    output: [
      {
        dir: 'dist/cjs',
        format: 'cjs',
        preserveModules: true,
        preserveModulesRoot: 'src',
        sourcemap: true,
        sourcemapPathTransform,
        exports: 'named',
        interop: 'auto',
        entryFileNames: '[name].cjs',
      },
    ],
    plugins: [
      json(),
      externals({
        // Don't externalize tslib so helpers are bundled
        exclude: ['tslib'],
      }),
      resolve({
        extensions,
        preferBuiltins: false,
      }),
      typescript({
        tsconfig: 'tsconfig.cjs.json',
        resolveJsonModule: true,
        outputToFilesystem: false,
        // Ensure TypeScript emits helpers from tslib
        importHelpers: true,
        // Override module settings for CommonJS
        compilerOptions: {
          module: 'ESNext',
          target: 'ES2022',
        },
      }),
      commonjs({
        transformMixedEsModules: true,
      }),
      {
        buildEnd: () => {
          mkdirSync('./dist/cjs', { recursive: true });
          writeFileSync('./dist/cjs/package.json', '{"type": "commonjs"}');
          // Also create the index.d.cts file for TypeScript consumers
          writeFileSync('./dist/cjs/index.d.cts', 'export * from "./index";\nexport { default } from "./index";\n');
        },
      },
    ],
    strictDeprecations: true,
  },
  // Separate configuration for minified bundle
  // as terser is not working with ES2022 (not updated for 2 years...)
  {
    input: 'src/index.ts',
    output: {
      file: 'dist/cjs/index.min.cjs',
      format: 'cjs',
      name: 'osytehr.sdk',
      sourcemap: true,
      sourcemapPathTransform,
      exports: 'named',
      interop: 'auto',
    },
    plugins: [
      json(),
      resolve({ 
        extensions,
        preferBuiltins: false,
        browser: true,
      }),
      typescript({
        tsconfig: 'tsconfig.cjs.json',
        resolveJsonModule: true,
        outputToFilesystem: false,
        importHelpers: true,
        compilerOptions: {
          module: 'ESNext',
          target: 'ES2015',
        },
      }),
      commonjs({
        transformMixedEsModules: true,
      }),
      // Bundle tslib helpers inline for browser use
      resolve({
        preferBuiltins: false,
        browser: true,
      }),
      // Only externalize non-browser dependencies
      externals({
        exclude: ['tslib', 'uuid', 'fast-json-patch'],
        packagePath: './package.json',
      }),
      terser({
        ecma: 2015,
        module: false,
        compress: {
          ecma: 2015,
          passes: 2,
        },
        mangle: {
          safari10: true,
        },
        format: {
          ecma: 2015,
          safari10: true,
        },
      }),
    ],
    strictDeprecations: true,
  },
];