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rollup.config.js
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import rollupBabel from 'rollup-plugin-babel';
import commonjs from 'rollup-plugin-commonjs';
import nodeResolve from 'rollup-plugin-node-resolve';
import json from 'rollup-plugin-json';
import uglify from 'rollup-plugin-uglify';
import replace from 'rollup-plugin-replace';
const minify = process.env.MINIFY;
const format = process.env.FORMAT;
const esm = format === 'es';
const umd = format === 'umd';
const cjs = format === 'cjs';
let targets;
if (esm) {
targets = [{ dest: `dist/rallymetrics.es.js`, format: 'es' }];
} else if (umd) {
if (minify) {
targets = [{ dest: `dist/rallymetrics.umd.min.js`, format: 'umd' }];
} else {
targets = [{ dest: `dist/rallymetrics.umd.js`, format: 'umd' }];
}
} else if (cjs) {
targets = [{ dest: `dist/rallymetrics.cjs.js`, format: 'cjs' }];
} else if (format) {
throw new Error(`invalid format specified: "${format}".`);
} else {
throw new Error('no format specified. --environment FORMAT:xxx');
}
const entry = 'src/main.js';
const exports = esm ? 'named' : 'default';
export default {
entry,
targets,
exports,
moduleName: 'rallymetrics',
format,
external: [],
globals: {},
plugins: [
umd
? replace({
'process.env.NODE_ENV': JSON.stringify(minify ? 'production' : 'development'),
})
: null,
nodeResolve({ jsnext: true, main: true, browser: true }),
commonjs({ include: 'node_modules/**' }),
json(),
rollupBabel({
exclude: 'node_modules/**',
babelrc: false,
presets: [
[
'env',
{
targets: {
node: 'current',
browsers: [
'last 2 versions',
'not IE 10',
'not ExplorerMobile 10',
'not ExplorerMobile 11',
],
},
modules: false,
},
],
'stage-2',
],
plugins: ['external-helpers'],
}),
minify ? uglify() : null,
].filter(Boolean),
};
// this is not transpiled
/*
eslint
max-len: 0,
comma-dangle: [
2,
{
arrays: 'always-multiline',
objects: 'always-multiline',
functions: 'never'
}
]
*/