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rollup.config.js
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rollup.config.js
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'use strict';
// load libs
import svelte from 'rollup-plugin-svelte';
import commonjs from '@rollup/plugin-commonjs';
import resolve from '@rollup/plugin-node-resolve';
import livereload from 'rollup-plugin-livereload';
import { terser } from 'rollup-plugin-terser';
import css from 'rollup-plugin-css-only';
import json from '@rollup/plugin-json';
import html from '@rollup/plugin-html';
// load constants
import { SUBDIRECTORY, DOMAIN, TITLE, DESCRIPTION, AUTHOR, THUMBNAIL_FILEPATH, GOOGLE_ANALYTICS_ID, TOR } from './src/config.json';
// build metas
let METAS = [
{ 'itemprop': 'name', 'content': TITLE },
{ 'itemprop': 'description', 'content': DESCRIPTION },
{ 'itemprop': 'image', 'content': `${DOMAIN}${SUBDIRECTORY}${THUMBNAIL_FILEPATH}` },
{ 'property': 'og:url', 'content': `${DOMAIN}${SUBDIRECTORY}` },
{ 'property': 'og:title', 'content': TITLE },
{ 'property': 'og:type', 'content': 'article' },
{ 'property': 'og:article:publisher', 'content': AUTHOR },
{ 'property': 'og:image', 'content': `${DOMAIN}${SUBDIRECTORY}${THUMBNAIL_FILEPATH}` },
{ 'property': 'og:site_name', 'content': AUTHOR },
{ 'property': 'og:description', 'content': DESCRIPTION },
{ 'name': 'title', 'content': TITLE },
{ 'name': 'author', 'content': AUTHOR },
{ 'name': 'description', 'content': DESCRIPTION },
{ 'name': 'twitter:card', 'content': 'summary_large_image' },
{ 'name': 'twitter:site', 'content': `@${AUTHOR}` },
{ 'name': 'twitter:title', 'content': TITLE },
{ 'name': 'twitter:description', 'content': DESCRIPTION },
{ 'name': 'twitter:creator', 'content': `@${AUTHOR}` },
{ 'name': 'twitter:image:src', 'content': `${DOMAIN}${SUBDIRECTORY}${THUMBNAIL_FILEPATH}` },
{ 'name': 'msapplication-TileImage', 'content': `${DOMAIN}${SUBDIRECTORY}${THUMBNAIL_FILEPATH}` }
];
// Google Analytics
const googleAnalytics = `
<script async src="https://www.googletagmanager.com/gtag/js?id=${GOOGLE_ANALYTICS_ID}"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', '${GOOGLE_ANALYTICS_ID}');
</script>`;
const production = !process.env.ROLLUP_WATCH;
function serve() {
let server;
function toExit() {
if (server) server.kill(0);
}
return {
writeBundle() {
if (server) return;
server = require('child_process').spawn('npm', ['run', 'start', '--', '--dev'], {
stdio: ['ignore', 'inherit', 'inherit'],
shell: true
});
process.on('SIGTERM', toExit);
process.on('exit', toExit);
}
};
}
const htmlOptions = {
template: ({ attributes, files, meta, publicPath, title }) => {
const script = (files.js || []).map(({ fileName }) => {
return ` <script defer src="${SUBDIRECTORY}${fileName}"></script>`;
}).join("\n");
const css = (files.css || []).map(({ fileName }) => {
return ` <link rel="stylesheet" href="${SUBDIRECTORY}${fileName}">`;
}).join("\n");
const metas = (METAS || []).map(({ itemprop, property, name, content }) => {
if (itemprop){
return ` <meta itemprop="${itemprop}" content="${content}">`;
}else if(property){
return ` <meta property="${property}" content="${content}">`;
}else if(name){
return ` <meta name="${name}" content="${content}">`;
}else {
return '';
}
}).join("\n");
return `
<!DOCTYPE html>
<html lang="en">
<head>
${googleAnalytics}
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<link rel="icon" type="image/x-icon" href="favicon.ico">
<title>${TITLE}</title>
${metas}
${TOR['ENABLE'] ? ` <meta http-equiv="onion-location" content="${TOR['ONION_ADDRESS']}${SUBDIRECTORY}">` : ''}
${css}
${script}
</head>
</html>
`;
},
};
export default {
input: 'src/main.js',
output: {
sourcemap: true,
format: 'iife',
name: 'app',
file: 'public/bundle.js'
},
plugins: [
svelte({
// emitCss: false,
compilerOptions: {
// enable run-time checks when not in production
dev: !production
}
}),
// we'll extract any component CSS out into
// a separate file - better for performance
css({ output: 'bundle.css' }),
// to import json files
json({
compact: true
}),
// If you have external dependencies installed from
// npm, you'll most likely need these plugins. In
// some cases you'll need additional configuration -
// consult the documentation for details:
// https://github.com/rollup/plugins/tree/master/packages/commonjs
resolve({
browser: true,
dedupe: ['svelte']
}),
commonjs(),
// to build html files
html(htmlOptions),
// In dev mode, call `npm run start` once
// the bundle has been generated
!production && serve(),
// Watch the `public` directory and refresh the
// browser on changes when not in production
!production && livereload('public'),
// If we're building for production (npm run build
// instead of npm run dev), minify
production && terser()
],
watch: {
clearScreen: false
},
onwarn ( warning, warn ) {
// ignore d3 circular dependency warnings
if(warning.code === 'CIRCULAR_DEPENDENCY' && warning.importer.includes('d3')){
return;
}
},
};