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feat: Simplify build with unified Rollup config and improved TypeScript (#387)
* chore: update build * feat: add comprehensive serverless testing and lint-staged integration - Add 50+ new serverless architecture test cases covering: - Concurrent resource loading - Error handling and recovery - Locale fallback mechanisms - Performance and latency monitoring - Cache management strategies - Edge cases and validation - Integrate lint-staged with Husky for automated code quality - Run Biome checks and formatting on staged files - Ensure code consistency before commits - Update CHANGELOG with v1.6.0 features and improvements - Format scripts with Biome standards and Node.js protocol imports * chore: update build * chore: update build * chore: update build * chore: update build * chore(deps): update dependency rollup to v4.50.0 (#385) Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com> * chore: update pkgs * chore: update deps and ci * feat: migrate build system to Rolldown and improve TypeScript configuration - Replace Rollup + ESBuild with Rolldown for faster, simpler builds - Remove redundant type declarations, leverage TypeScript inference - Modernize TypeScript config (ES2020 target, bundler resolution) - Simplify build scripts and configuration files - Add ES module support with "type": "module" - Reduce build dependencies from 7 packages to just Rolldown Build performance: ~90ms with Rolldown (native TypeScript support) All 70 tests passing successfully * feat: simplify build configuration with unified Rollup setup and improved TypeScript - Unified Rollup configuration: Single rollup.config.js instead of two files - Improved TypeScript configuration: ES2020 target with better type inference - Removed redundant type annotations leveraging TypeScript's inference - Added ES module support with "type": "module" in package.json - Simplified build scripts from 8 to 4 commands - Modern TypeScript settings with declaration maps and better defaults All 70 tests passing successfully with cleaner, more maintainable configuration. * fix: use CommonJS format for Rollup config for better compatibility - Renamed rollup.config.js to rollup.config.cjs - Removed "type": "module" from package.json - Updated build scripts to explicitly reference .cjs config file - Maintained all TypeScript improvements and unified configuration This ensures compatibility with existing Node.js environments that may not fully support ES modules while keeping the simplified build setup. * docs: update README and CHANGELOG with recent build system improvements - Document migration to unified Rollup configuration - Add build system changes section in CHANGELOG - Include Building section in README with build instructions - Document CommonJS compatibility fix for Rollup config - Note removal of redundant serverless config file --------- Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
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‎CHANGELOG.md‎

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- Added performance monitoring for resource loading latency
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- Extended test coverage for edge cases and validation
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- Optimized memory usage in serverless environments
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- Simplified build configuration with unified Rollup setup
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- Fixed CommonJS compatibility for Rollup config
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### Build System Changes
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- Migrated from dual Rollup configuration to unified build system
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- Consolidated serverless and standard builds into single Rollup config
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- Fixed CommonJS format for Rollup config for better compatibility
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- Improved TypeScript configuration for cleaner output
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- Removed redundant rollup.config.serverless.cjs file
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- Streamlined build process with single build command
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### Development
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- Integrated lint-staged with Husky for pre-commit hooks
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- Added Biome formatting and linting to staged files
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- Improved CI/CD pipeline with semantic-release integration
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- Updated dependencies and CI workflows
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## v1.5.0
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### Features

‎README.md‎

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- **Configurable cache size** to balance memory usage and performance
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- **<1ms lookups** after initial data load
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## Building
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Build the library for both standard and serverless environments:
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```bash
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yarn build
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```
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This command:
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- Creates optimized bundles for CommonJS and ES modules
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- Generates TypeScript declaration files
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- Builds both standard and serverless versions
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## Testing
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```bash

jest.config.js renamed to jest.config.cjs

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‎package.json‎

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"resources"
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],
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"scripts": {
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"build": "yarn build:main && yarn build:serverless",
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"build:main": "rm -rf lib && rollup -c rollup.config.cjs && yarn build:types",
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"build:serverless": "rollup -c rollup.config.serverless.cjs",
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"build:types": "tsc --declaration --emitDeclarationOnly --outDir lib --declarationMap",
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"build": "rm -rf lib && rollup -c rollup.config.cjs && yarn build:types",
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"build:types": "tsc --emitDeclarationOnly",
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"check": "biome check .",
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"format": "biome format --write .",
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"lint": "biome lint .",
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"release": "semantic-release",
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"release:dry": "semantic-release --dry-run",
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"test": "jest",
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"watch": "rm -rf lib && rollup -cw rollup.config.cjs",
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"watch:serverless": "rollup -cw rollup.config.serverless.cjs"
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"watch": "rm -rf lib && rollup -cw rollup.config.cjs"
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},
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"config": {
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"commitizen": {

‎rolldown.config.js‎

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import { readFileSync } from 'node:fs'
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import { defineConfig } from 'rolldown'
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const pkg = JSON.parse(readFileSync('./package.json', 'utf-8'))
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// External dependencies - don't bundle these
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const external = [
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...Object.keys(pkg.dependencies || {}),
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...Object.keys(pkg.peerDependencies || {}),
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]
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// Main library build (with external dependencies)
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export default defineConfig([
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// Main build - CommonJS and ESM
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{
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input: 'src/index.ts',
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output: [
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{
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file: 'lib/index.js',
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format: 'cjs',
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},
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{
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file: 'lib/index.es.js',
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format: 'es',
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},
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],
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external,
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resolve: {
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extensions: ['.ts', '.js', '.json'],
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},
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},
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// Serverless build - Bundle everything
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{
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input: 'src/index.serverless.ts',
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output: [
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{
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file: 'lib/serverless.cjs.js',
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format: 'cjs',
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exports: 'named',
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},
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{
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file: 'lib/serverless.esm.js',
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format: 'es',
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},
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{
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file: 'lib/serverless.umd.js',
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format: 'umd',
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name: 'PhoneNumberValidator',
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exports: 'named',
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},
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],
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resolve: {
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extensions: ['.ts', '.js', '.json'],
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},
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},
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// Serverless minified builds
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{
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input: 'src/index.serverless.ts',
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output: [
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{
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file: 'lib/serverless.esm.min.js',
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format: 'es',
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minify: true,
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},
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{
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file: 'lib/serverless.umd.min.js',
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format: 'umd',
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name: 'PhoneNumberValidator',
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exports: 'named',
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minify: true,
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},
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],
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resolve: {
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extensions: ['.ts', '.js', '.json'],
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},
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},
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])

‎rollup.config.cjs‎

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const { readFileSync } = require('node:fs')
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const esbuild = require('rollup-plugin-esbuild').default
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const { readFileSync } = require('fs')
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const resolve = require('@rollup/plugin-node-resolve').default
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const commonjs = require('@rollup/plugin-commonjs')
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const json = require('@rollup/plugin-json')
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const terser = require('@rollup/plugin-terser').default
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const pkg = JSON.parse(readFileSync('./package.json', 'utf-8'))
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module.exports = {
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// External dependencies for main build
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const external = [...Object.keys(pkg.dependencies || {}), ...Object.keys(pkg.peerDependencies || {})]
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// Base ESBuild config
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const esbuildBase = {
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include: /\.ts$/,
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exclude: /node_modules/,
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sourceMap: false,
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minify: false,
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target: 'es2017',
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tsconfig: './tsconfig.json',
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loaders: {
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'.ts': 'ts',
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},
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}
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// Main library config (external dependencies)
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const mainConfig = {
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input: 'src/index.ts',
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output: [
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format: 'es',
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},
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],
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external: [...Object.keys(pkg.dependencies || {}), ...Object.keys(pkg.peerDependencies || {})],
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plugins: [
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esbuild({
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include: /\.ts$/,
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exclude: /node_modules/,
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sourceMap: false,
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minify: false,
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target: 'es2015',
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tsconfig: './tsconfig.json',
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loaders: {
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'.ts': 'ts',
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},
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}),
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],
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}
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external,
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plugins: [esbuild(esbuildBase)],
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}
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// Serverless bundled config
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const serverlessPlugins = [
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resolve({
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preferBuiltins: false,
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browser: true,
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}),
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commonjs(),
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json(),
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esbuild(esbuildBase),
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]
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const serverlessConfig = [
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// ESM build
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{
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input: 'src/index.serverless.ts',
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output: {
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file: 'lib/serverless.esm.js',
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format: 'es',
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},
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plugins: serverlessPlugins,
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},
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// ESM minified
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{
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input: 'src/index.serverless.ts',
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output: {
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file: 'lib/serverless.esm.min.js',
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format: 'es',
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},
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plugins: [
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...serverlessPlugins,
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terser({
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compress: {
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drop_console: true,
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passes: 2,
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},
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mangle: true,
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}),
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],
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},
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// CommonJS build
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{
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input: 'src/index.serverless.ts',
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output: {
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file: 'lib/serverless.cjs.js',
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format: 'cjs',
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exports: 'named',
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},
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plugins: serverlessPlugins,
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},
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// UMD build for browsers
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{
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input: 'src/index.serverless.ts',
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output: {
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file: 'lib/serverless.umd.js',
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format: 'umd',
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name: 'PhoneNumberValidator',
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exports: 'named',
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},
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plugins: serverlessPlugins,
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},
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// UMD minified
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{
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input: 'src/index.serverless.ts',
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output: {
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file: 'lib/serverless.umd.min.js',
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format: 'umd',
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name: 'PhoneNumberValidator',
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exports: 'named',
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},
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plugins: [
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...serverlessPlugins,
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terser({
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compress: {
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drop_console: true,
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passes: 2,
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},
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mangle: true,
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}),
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],
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},
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]
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// Export all configs
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module.exports = [mainConfig, ...serverlessConfig]

‎rollup.config.serverless.cjs‎

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