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rollup.config.js
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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 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'
import sveltePreprocess from 'svelte-preprocess'
import alias from '@rollup/plugin-alias'
import sapperEnv from 'sapper-environment'
const mode = process.env.NODE_ENV
const dev = mode === 'development'
const legacy = !!process.env.SAPPER_LEGACY_BUILD
const warningIsIgnored = (warning) =>
warning.message.includes(
'Use of eval is strongly discouraged, as it poses security risks and may cause issues with minification'
) || warning.message.includes('Circular dependency: node_modules')
// Workaround for https://github.com/sveltejs/sapper/issues/1266
const onwarn = (warning, _onwarn) =>
(warning.code === 'MISSING_EXPORT' && /'preload'/.test(warning.message)) ||
(warning.code === 'CIRCULAR_DEPENDENCY' &&
/[/\\]@sapper[/\\]/.test(warning.message)) ||
warningIsIgnored(warning) ||
console.warn(warning.toString())
const preprocess = sveltePreprocess({
scss: {
includePaths: ['src'],
},
})
const aliases = alias({
resolve: ['.svelte', '.js'],
entries: [
{
find: '@/components',
replacement: path.resolve(__dirname, 'src/components'),
},
{
find: '@/styles',
replacement: path.resolve(__dirname, 'src/styles'),
},
{
find: '@/stores',
replacement: path.resolve(__dirname, 'src/stores'),
},
{
find: '@/utils',
replacement: path.resolve(__dirname, 'src/utils'),
},
],
})
// Warn Rollup https://github.com/sveltejs/sapper-template/issues/302
export default {
client: {
input: config.client.input(),
output: config.client.output(),
plugins: [
aliases,
replace({
preventAssignment: true,
values: {
...sapperEnv(),
'process.browser': true,
'process.env.NODE_ENV': JSON.stringify(mode),
},
}),
svelte({
dev,
hydratable: true,
emitCss: true,
preprocess,
}),
url({
sourceDir: path.resolve(__dirname, 'src/node_modules/images'),
publicPath: '/client/',
}),
resolve({
preventAssignment: true,
browser: true,
dedupe: ['svelte'],
// aliases,
}),
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: [
aliases,
replace({
preventAssignment: true,
'process.browser': false,
'process.env.NODE_ENV': JSON.stringify(mode),
}),
svelte({
generate: 'ssr',
hydratable: true,
dev,
preprocess,
}),
url({
sourceDir: path.resolve(__dirname, 'src/node_modules/images'),
publicPath: '/client/',
emitFiles: false, // already emitted by client build
}),
resolve({
preventAssignment: true,
dedupe: ['svelte'],
// aliases,
}),
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({
preventAssignment: true,
'process.browser': true,
'process.env.NODE_ENV': JSON.stringify(mode),
}),
commonjs(),
!dev && terser(),
],
preserveEntrySignatures: false,
onwarn,
},
}