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rollup.config.js
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rollup.config.js
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import nodeResolve from '@rollup/plugin-node-resolve';
import { terser as minify } from 'rollup-plugin-terser';
import path from 'path';
const packageJson = require('../package.json');
const entryPoints = require('./entryPoints');
const distDir = './dist';
function isExternal(id, parentId, entryPointsAreExternal = true) {
// Rollup v2.26.8 started passing absolute id strings to this function, thanks
// apparently to https://github.com/rollup/rollup/pull/3753, so we relativize
// the id again in those cases.
if (path.posix.isAbsolute(id)) {
id = path.posix.relative(
path.posix.dirname(parentId),
id,
);
if (!id.startsWith(".")) {
id = "./" + id;
}
}
const isRelative =
id.startsWith("./") ||
id.startsWith("../");
if (!isRelative) {
return true;
}
if (entryPointsAreExternal &&
entryPoints.check(id, parentId)) {
return true;
}
return false;
}
function prepareCJS(input, output) {
return {
input,
external(id, parentId) {
return isExternal(id, parentId, false);
},
output: {
file: output,
format: 'cjs',
sourcemap: true,
exports: 'named',
externalLiveBindings: false,
},
plugins: [
nodeResolve(),
],
};
}
function prepareCJSMinified(input) {
return {
input,
output: {
file: input.replace('.js', '.min.js'),
format: 'cjs',
},
plugins: [
minify({
mangle: {
toplevel: true,
},
compress: {
toplevel: true,
global_defs: {
'@__DEV__': 'false',
},
},
}),
],
};
}
function prepareBundle({
dirs,
bundleName = dirs[dirs.length - 1],
extensions,
}) {
const dir = path.join(distDir, ...dirs);
return {
input: `${dir}/index.js`,
external(id, parentId) {
return isExternal(id, parentId, true);
},
output: {
file: `${dir}/${bundleName}.cjs.js`,
format: 'cjs',
sourcemap: true,
exports: 'named',
interop: 'esModule',
externalLiveBindings: false,
},
plugins: [
extensions ? nodeResolve({ extensions }) : nodeResolve(),
],
};
}
export default [
...entryPoints.map(prepareBundle),
// Convert the ESM entry point to a single CJS bundle.
prepareCJS(
'./dist/core/index.js',
'./dist/apollo-client.cjs.js',
),
// Minify that single CJS bundle.
prepareCJSMinified(
'./dist/apollo-client.cjs.js',
),
];