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Proper multi-environment build using rollup
There are 3 bundles here without any external dependencies
included. These are meant for a further bundling in a
different environments.
**stampit.mjs** - full featured ES6 including modules,
essentially same thing as source file
**stampit.js** - ES6 without modules to be used in NodeJS 6 only
**stampit.es5.js** - ES5 with required polyfills included,
mainly for browserify & webpack 1.x
Lastly there is also **stampit.full.js** (+ minified) which
is also ES5 compatible, but with all dependencies included.
This is drop-in bundle for CDNJS and similar.
Here is also reason why I had to change the source code and instead of
import isFunction from 'lodash/isFunction';
import isObject from 'lodash/isObject';
... there is usual `import _ from 'lodash';` now. Unfortunately lodash doesn't support true tree-shaking yet and doing it in current way means that lodash would be included in every bundle, even just those necessary functions. With little help of [babel-plugin-lodash](https://github.com/lodash/babel-plugin-lodash) this is handled more correctly.
I have also replaced use of `assign` from lodash with `Object.assign`.
Closes #208- Loading branch information
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| { | ||
| "presets": ["es2015", "stage-1"], | ||
| "plugins": ["transform-runtime"] | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| /* eslint-disable no-console */ | ||
|
|
||
| import pkg from '../package.json'; | ||
|
|
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| import rollup from 'rollup'; | ||
| import babel from 'rollup-plugin-babel'; | ||
| import nodeResolve from 'rollup-plugin-node-resolve'; | ||
| import commonJs from 'rollup-plugin-commonjs'; | ||
| import uglify from 'rollup-plugin-uglify'; | ||
|
|
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| const moduleName = 'stampit'; | ||
|
|
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| function execute() { | ||
| return Promise.all([ | ||
| makeBundle( | ||
| { format: 'es6', ext: '.mjs' } | ||
| ), | ||
| makeBundle( | ||
| { format: 'cjs', ext: '.js' }, | ||
| ), | ||
| makeBundle( | ||
| { format: 'cjs', ext: '.es5.js', | ||
| babelPresets: ['es2015-rollup'], | ||
| babelPlugins: ['transform-runtime'] | ||
| } | ||
| ), | ||
| makeBundle( | ||
| { format: 'umd', ext: '.full.js', | ||
| babelPresets: ['es2015-rollup'], | ||
| babelPlugins: ['transform-runtime', 'lodash'] | ||
| } | ||
| ), | ||
| makeBundle( | ||
| { format: 'umd', ext: '.full.min.js', minify: true, | ||
| babelPresets: ['es2015-rollup'], | ||
| babelPlugins: ['transform-runtime', 'lodash'] | ||
| } | ||
| ) | ||
| ]); | ||
| } | ||
|
|
||
| async function makeBundle(config) { | ||
| const isUMD = config.format === 'umd'; | ||
|
|
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| const inputConfig = { | ||
| entry: 'src/stampit.js', | ||
| plugins: [ | ||
| babel({ | ||
| babelrc: false, | ||
| exclude: 'node_modules/**', | ||
| presets: ['stage-1'].concat(config.babelPresets || []), | ||
| plugins: config.babelPlugins || [], | ||
| runtimeHelpers: isUMD, | ||
| externalHelpers: isUMD | ||
| }), | ||
| nodeResolve({ preferBuiltins: true, browser: isUMD }), | ||
| commonJs() | ||
| ] | ||
| }; | ||
|
|
||
| if (!isUMD) { | ||
| inputConfig.external = Object.keys(pkg.dependencies); | ||
| } | ||
|
|
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| if (config.minify) { | ||
| inputConfig.plugins.push(uglify()); | ||
| } | ||
|
|
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| const outputConfig = { | ||
| dest: `dist/${moduleName}${config.ext}`, | ||
| format: config.format, | ||
| sourceMap: !config.minify, | ||
| moduleName: moduleName, | ||
| exports: 'named' | ||
| }; | ||
|
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| const bundle = await rollup.rollup(inputConfig); | ||
| await bundle.write(outputConfig); | ||
| console.log('created', outputConfig.dest); | ||
| } | ||
|
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| console.log('building...'); | ||
|
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| execute() | ||
| .then(() => console.log('finished')) | ||
| .catch((err) => console.log(err.stack || err)); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| require('babel-polyfill'); | ||
| require('babel-register'); | ||
| require('./build.js'); |
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