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rollup.config.js
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rollup.config.js
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import commonjs from "@rollup/plugin-commonjs";
import resolve from "@rollup/plugin-node-resolve";
import svelte from "rollup-plugin-svelte";
import livereload from "rollup-plugin-livereload";
import json from "@rollup/plugin-json";
import copy from "rollup-plugin-copy";
import injectProcessEnv from "rollup-plugin-inject-process-env";
import alias from "@rollup/plugin-alias";
const INPUT_DIR = "src";
const OUTPUT_DIR = "build";
const production = !process.env.ROLLUP_WATCH;
// Custom Rollup plugin to start the server
const serve = () => {
let started = false;
return {
writeBundle() {
if(!started) {
started = true;
require("child_process").spawn("npm", [ "run", "serve", "--", "--dev" ], {
stdio : [ "ignore", "inherit", "inherit" ],
shell : true,
});
}
},
};
};
export default {
// Used in state charts
inlineDynamicImports : true,
input : `${INPUT_DIR}/main.js`,
output : {
format : "iife",
file : `${OUTPUT_DIR}/bundle.js`,
name : "app",
sourcemap : true,
},
plugins : [
svelte({
// we'll extract any component CSS out into
// a separate file — better for performance
dev : !production,
css : (css) => {
css.write("bundle.css");
},
}),
resolve({
browser : true,
dedupe : [ "svelte" ],
}),
commonjs(),
copy({
targets : [
{ src : `${INPUT_DIR}/index.html`, dest : OUTPUT_DIR },
],
}),
json(),
injectProcessEnv({
NODE_ENV : production,
}),
alias({
entries : [
{ find : "shared", replacement : `./${INPUT_DIR}/shared` },
],
}),
!production && livereload(`${OUTPUT_DIR}`),
!production && serve(),
],
};