shareon/rollup.config.js

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import { join, resolve } from "path";
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import buble from "@rollup/plugin-buble";
import strip from "@rollup/plugin-strip";
import postcss from "rollup-plugin-postcss";
import { terser } from "rollup-plugin-terser";
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const autoprefixer = require("autoprefixer");
const banner = require("postcss-banner");
const calc = require("postcss-calc");
const cssnano = require("cssnano");
const cssVariables = require("postcss-css-variables");
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const pkg = require("./package.json");
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const isDev =
process.env.ROLLUP_WATCH || process.env.NODE_ENV === "development";
const outputDir = resolve(".", "dist");
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const bannerText = `${pkg.name} v${pkg.version}`;
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const postcssPlugins = [cssVariables, calc];
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if (!isDev) {
postcssPlugins.push(
cssnano({
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preset: "default",
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}),
autoprefixer(),
banner({
banner: bannerText,
important: true,
inline: true,
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})
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);
}
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const getPlugins = (css) => [
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css &&
postcss({
extract: resolve(join(outputDir, "shareon.min.css")),
plugins: postcssPlugins,
}),
!isDev &&
strip({
debugger: true,
include: ["**/*.js"],
functions: ["console.log", "console.debug", "assert.*"],
sourceMap: false,
}),
!isDev &&
buble({
transforms: {
modules: false,
},
}),
];
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const getOutput = (baseDir) => {
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const defaultParameters = {
name: pkg.name,
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exports: "default",
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};
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return [
{
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...defaultParameters,
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format: "iife",
file: join(baseDir, `${pkg.name}${isDev ? "" : ".min"}.js`),
plugins: isDev ? [] : [terser({ output: { comments: /^!/ } })],
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banner: `/*! ${bannerText} */`,
},
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!isDev && {
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...defaultParameters,
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format: "cjs",
file: join(baseDir, `${pkg.name}.cjs`),
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banner: `/*! ${bannerText} */`,
},
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!isDev && {
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...defaultParameters,
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format: "esm",
file: join(baseDir, `${pkg.name}.mjs`),
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banner: `/*! ${bannerText} */`,
},
];
};
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export default {
input: join(__dirname, "src", "index.js"),
output: getOutput(outputDir),
plugins: getPlugins(true),
};