iframe-proxy | Sunbelt Computer Software

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import fs from "fs";

import path from "path";

import {terser} from "rollup-plugin-terser";

import jsesc from "jsesc";

import CleanCSS from "clean-css";

import * as meta from "./package.json";

const filename = meta.name.split("/").pop();

const external = Object.keys(meta.dependencies || {}).filter(key => /^d3-/.test(key));

// A lil’ Rollup plugin to allow importing of style.css.

const cssPath = path.resolve("./src/style.css");

const css = {

load(id) {

if (id !== cssPath) return;

return fs.readFileSync(id, "utf8");

transform(input, id) {

if (id !== cssPath) return;

return {

code: `if (typeof document !== 'undefined') {

const style = document.createElement('style');

style.textContent = '${jsesc(new CleanCSS().minify(input).styles)}';

document.head.appendChild(style);

}

};

}

};

const config = {

input: "src/index.js",

external,

output: {

indent: false,

banner: `// ${meta.name} v${meta.version} Copyright ${(new Date).getFullYear()} ${meta.author.name}`

plugins: [

css

]

};

export default [

{

...config,

output: {

...config.output,

format: "cjs",

file: `dist/${filename}.cjs.js`

}

{

...config,

output: {

...config.output,

name: "Plot",

format: "umd",

extend: true,

file: `dist/${filename}.umd.js`,

globals: Object.fromEntries(external.map(key => [key, "d3"])),

paths: Object.fromEntries(external.map(key => [key, "d3@6"]))

}

{

...config,

output: {

...config.output,

name: "Plot",

format: "umd",

extend: true,

file: `dist/${filename}.umd.min.js`,

globals: Object.fromEntries(external.map(key => [key, "d3"])),

paths: Object.fromEntries(external.map(key => [key, "d3@6"]))

plugins: [

...config.plugins,

terser({

output: {

preamble: config.output.banner

}

})

]

}

];

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