kitten.sh
1import commonjs from '@rollup/plugin-commonjs';
2import resolve from '@rollup/plugin-node-resolve';
3import typescript from '@rollup/plugin-typescript';
4import buble from '@rollup/plugin-buble';
5import terser from '@rollup/plugin-terser';
6import cjsCheck from 'rollup-plugin-cjs-check';
7
8import flowTypings from './flow-typings-plugin.mjs';
9
10const plugins = [
11 resolve({
12 extensions: ['.mjs', '.js', '.ts'],
13 mainFields: ['module', 'jsnext', 'main'],
14 preferBuiltins: false,
15 browser: true,
16 }),
17
18 commonjs({
19 ignoreGlobal: true,
20 include: /\/node_modules\//,
21 extensions: ['.mjs', '.js', '.ts'],
22 }),
23
24 typescript({
25 exclude: ['src/**/*.test.ts', '**/__tests__/*'],
26 compilerOptions: {
27 sourceMap: true,
28 sourceRoot: './',
29 noEmit: false,
30 declaration: true,
31 declarationDir: './dist/types/',
32 target: 'esnext',
33 },
34 }),
35
36 cjsCheck(),
37 flowTypings(),
38
39 buble({
40 transforms: {
41 unicodeRegExp: false,
42 defaultParameter: false,
43 dangerousForOf: true,
44 dangerousTaggedTemplateString: true,
45 destructuring: false,
46 asyncAwait: false,
47 arrow: false,
48 classes: false,
49 computedProperty: false,
50 conciseMethodProperty: false,
51 templateString: false,
52 objectRestSpread: false,
53 parameterDestructuring: false,
54 spreadRest: false,
55 },
56 exclude: 'node_modules/**',
57 }),
58
59 terser({
60 warnings: true,
61 ecma: 2015,
62 keep_fnames: true,
63 ie8: false,
64 compress: {
65 pure_getters: true,
66 toplevel: true,
67 booleans_as_integers: false,
68 keep_fnames: true,
69 keep_fargs: true,
70 if_return: false,
71 ie8: false,
72 sequences: false,
73 loops: false,
74 conditionals: false,
75 join_vars: false,
76 },
77 mangle: {
78 module: true,
79 keep_fnames: true,
80 },
81 output: {
82 beautify: true,
83 braces: true,
84 indent_level: 2,
85 },
86 }),
87];
88
89const output = format => {
90 const extension = format === 'esm' ? '.mjs' : '.js';
91 return {
92 chunkFileNames: '[hash]' + extension,
93 entryFileNames: '[name]' + extension,
94 dir: './dist',
95 exports: 'named',
96 sourcemap: true,
97 indent: false,
98 freeze: false,
99 strict: false,
100 format,
101 // NOTE: All below settings are important for cjs-module-lexer to detect the export
102 // When this changes (and terser mangles the output) this will interfere with Node.js ESM intercompatibility
103 esModule: format !== 'esm',
104 externalLiveBindings: format !== 'esm',
105 generatedCode: {
106 preset: 'es5',
107 reservedNamesAsProps: false,
108 objectShorthand: false,
109 constBindings: false,
110 },
111 };
112};
113
114const config = {
115 input: {
116 wonka: './src/index.ts',
117 },
118 onwarn: () => {},
119 external: () => false,
120 plugins,
121 treeshake: {
122 unknownGlobalSideEffects: false,
123 tryCatchDeoptimization: false,
124 moduleSideEffects: false,
125 },
126 output: [output('esm'), output('cjs')],
127};
128
129export default config;