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rollup.config.js
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rollup.config.js
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import peerDepsExternal from "rollup-plugin-peer-deps-external";
import resolve from "@rollup/plugin-node-resolve";
import commonjs from "@rollup/plugin-commonjs";
import typescript from "rollup-plugin-typescript2";
import postcss from "rollup-plugin-postcss";
import json from "@rollup/plugin-json";
const { babel } = require("@rollup/plugin-babel");
const packageJson = require("./package.json");
const less = require("less");
const isProd = process.env.NODE_ENV === "production";
const babelOptions = {
presets: ["@babel/preset-env"],
extensions: ['.js', '.jsx', '.ts', '.tsx', '.less'],
exclude: "**/node_modules/**"
};
const processLess = function(context, payload) {
return new Promise((resolve, reject) => {
less.render(
{
file: context
},
function(err, result) {
if (!err) {
resolve(result);
} else {
reject(err);
}
}
);
less.render(context, {}).then(
function(output) {
if (output && output.css) {
resolve(output.css);
} else {
reject({});
}
},
function(err) {
reject(err);
}
);
});
};
export default {
input: "packages/index.ts",
output: [
{
file: packageJson.main,
format: "cjs"
},
{
file: packageJson.module,
format: "es"
}
],
plugins: [
peerDepsExternal({ includeDependencies: !isProd }),
resolve(),
commonjs({ sourceMap: !isProd }),
typescript({ useTsconfigDeclarationDir: true }),
postcss({
extract: true,
process: processLess
}),
babel(babelOptions),
json()
],
};