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rollup.config.js
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import path from 'path';
import resolve from '@rollup/plugin-node-resolve';
import replace from '@rollup/plugin-replace';
import commonjs from '@rollup/plugin-commonjs';
import url from '@rollup/plugin-url';
import sveltePreprocess from 'svelte-preprocess';
import svelte from 'rollup-plugin-svelte';
import babel from '@rollup/plugin-babel';
import { terser } from 'rollup-plugin-terser';
import config from 'sapper/config/rollup.js';
import pkg from './package.json';
const mode = process.env.NODE_ENV;
const dev = mode === 'development';
const legacy = !!process.env.SAPPER_LEGACY_BUILD;
const onwarn = (warning, onwarn) =>
(warning.code === 'MISSING_EXPORT' && /'preload'/.test(warning.message)) ||
(warning.code === 'CIRCULAR_DEPENDENCY' && /[/\\]@sapper[/\\]/.test(warning.message)) ||
onwarn(warning);
export default {
client: {
input: config.client.input(),
output: config.client.output(),
plugins: [
replace({
'process.browser': true,
'process.env.NODE_ENV': JSON.stringify(mode)
}),
svelte({
// pre-process styles
preprocess: sveltePreprocess({
postcss: {
plugins: [require('autoprefixer')()]
}
}),
emitCss: true,
compilerOptions: {
dev,
hydratable: true,
}
}),
url({
sourceDir: path.resolve(__dirname, 'src/node_modules/images'),
publicPath: '/client/'
}),
resolve({
browser: true,
dedupe: ['svelte']
}),
commonjs(),
legacy && babel({
extensions: ['.js', '.mjs', '.html', '.svelte'],
babelHelpers: 'runtime',
exclude: ['node_modules/@babel/**'],
presets: [
['@babel/preset-env', {
targets: '> 0.25%, not dead'
}]
],
plugins: [
'@babel/plugin-syntax-dynamic-import',
['@babel/plugin-transform-runtime', {
useESModules: true
}]
]
}),
!dev && terser({
module: true
})
],
preserveEntrySignatures: false,
onwarn,
},
server: {
input: config.server.input(),
output: config.server.output(),
plugins: [
replace({
'process.browser': false,
'process.env.NODE_ENV': JSON.stringify(mode)
}),
svelte({
// pre-process styles
preprocess: sveltePreprocess({
postcss: {
plugins: [require('autoprefixer')()]
}
}),
compilerOptions: {
dev,
generate: 'ssr',
hydratable: true,
},
emitCss: false
}),
url({
sourceDir: path.resolve(__dirname, 'src/node_modules/images'),
publicPath: '/client/',
emitFiles: false // already emitted by client build
}),
resolve({
dedupe: ['svelte']
}),
commonjs()
],
external: Object.keys(pkg.dependencies).concat(require('module').builtinModules),
preserveEntrySignatures: 'strict',
onwarn,
},
serviceworker: {
input: config.serviceworker.input(),
output: config.serviceworker.output(),
plugins: [
resolve(),
replace({
'process.browser': true,
'process.env.NODE_ENV': JSON.stringify(mode)
}),
commonjs(),
!dev && terser()
],
preserveEntrySignatures: false,
onwarn,
}
};