Initial commit

Author: developit

.gitignore

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+node_modules
+.DS_Store
+*.log
+build
+dist
+package-lock.json

package.json

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+{
+  "name": "microbundle",
+  "version": "0.1.0",
+  "description": "Zero-configuration bundler for tiny JS libs, powered by Rollup.",
+  "main": "dist/microbundle.js",
+  "source": "src/index.js",
+  "bin": {
+    "microbundle": "dist/cli.js"
+  },
+  "scripts": {
+    "build": "babel-node --presets env src/cli.js --external all --format cjs src/*.js",
+    "prepare": "npm run -s build && npm t",
+    "lint": "eslint src",
+    "test:build": "node dist/cli.js --no-compress --cwd test/demo",
+    "test": "npm run -s lint && npm run -s build && npm run -s test:build"
+  },
+  "eslintConfig": {
+    "extends": "eslint-config-developit"
+  },
+  "keywords": [
+    "bundle",
+    "rollup"
+  ],
+  "files": [
+    "src",
+    "dist"
+  ],
+  "author": "Jason Miller <[email protected]> (http://jasonformat.com)",
+  "license": "MIT",
+  "dependencies": {
+    "asyncro": "^2.0.1",
+    "babel-polyfill": "^6.26.0",
+    "chalk": "^2.3.0",
+    "es6-promisify": "^5.0.0",
+    "gzip-size": "^4.1.0",
+    "pretty-bytes": "^4.0.2",
+    "regenerator-runtime": "^0.11.1",
+    "rollup": "^0.52.1",
+    "rollup-plugin-buble": "^0.18.0",
+    "rollup-plugin-bundle-size": "^1.0.1",
+    "rollup-plugin-commonjs": "^8.2.6",
+    "rollup-plugin-es3": "^1.1.0",
+    "rollup-plugin-node-resolve": "^3.0.0",
+    "rollup-plugin-nodent": "^0.1.3",
+    "rollup-plugin-post-replace": "^1.0.0",
+    "rollup-plugin-sizes": "^0.4.2",
+    "rollup-plugin-uglify": "^2.0.1",
+    "yargs": "^10.0.3"
+  },
+  "devDependencies": {
+    "babel-cli": "^6.26.0",
+    "babel-preset-env": "^1.6.1",
+    "eslint": "^4.13.0",
+    "eslint-config-developit": "^1.1.1"
+  }
+}

src/README.md

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+# Microbundle
+
+A zero-configuration bundler for tiny modules, powered by Rollup.
+
+- Reads all the necessary information from your `package.json`
+- Supports multiple entry modules (`cli.js` + `index.js`, etc)
+- Creates multiple output formats for each entry (CommonJS, UMD & ESM).
+
+## Installation
+
+`npm i -D microbundle`
+
+... then add it as an npm script:
+
+```js
+{
+	"scripts": {
+		"build": "microbundle",
+		"dev": "microbundle watch"
+	}
+}
+```
+
+## Usage
+
+```
+microbundle [entries..]
+
+Build once and exit
+
+Commands:
+  cli.js build [entries..]  Build once and exit                        [default]
+  cli.js watch [entries..]  Rebuilds on any change
+
+Options:
+  --version                   Show version number                      [boolean]
+  --entry, -i                 Entry module(s)
+                                            [string] [default: <package.module>]
+  --output, -o, -d            Directory to place build files into
+                             [string] [default: <dirname(package.main), build/>]
+  --cwd                       Use an alternative working directory
+                                                           [string] [default: .]
+  --format                    Only build specified formats
+                                                  [string] [default: es,cjs,umd]
+  --compress                  Compress output using UglifyJS
+                                                       [boolean] [default: true]
+  --strict                    Enforce undefined global context and add "use
+                              strict"                           [default: false]
+```
+
+## Liccense
+
+MIT

src/cli.js

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+#!/usr/bin/env node
+
+import yargs from 'yargs';
+import microbundle from '.';
+
+yargs
+	.option('entry', {
+		type: 'string',
+		alias: ['i', 'e', 'entries'],
+		description: 'Entry module(s)',
+		defaultDescription: '<package.module>'
+	})
+	.option('output', {
+		type: 'string',
+		alias: ['o', 'd'],
+		description: 'Directory to place build files into',
+		defaultDescription: '<dirname(package.main), build/>'
+	})
+	.option('cwd', {
+		type: 'string',
+		description: 'Use an alternative working directory',
+		defaultDescription: '.'
+	})
+	.option('format', {
+		type: 'string',
+		description: 'Only build specified formats',
+		defaultDescription: 'es,cjs,umd'
+	})
+	.option('compress', {
+		type: 'boolean',
+		description: 'Compress output using UglifyJS',
+		default: true
+	})
+	.option('strict', {
+		description: 'Enforce undefined global context and add "use strict"',
+		default: false
+	})
+	.command(
+		['build [entries..]', '$0 [entries..]'],
+		'Build once and exit',
+		() => {},
+		argv => run(argv, false)
+	)
+	.command(
+		'watch [entries..]',
+		'Rebuilds on any change',
+		() => {},
+		argv => run(argv, true)
+	)
+	.help()
+	.argv;
+
+function run(options, watch) {
+	options.watch = watch===true;
+	microbundle(options)
+		.then( output => {
+			if (output!=null) process.stdout.write(output + '\n');
+			if (!watch) {
+				process.exit(0);
+			}
+		})
+		.catch(err => {
+			process.stderr.write(String(err) + '\n');
+			process.exit(err.code || 1);
+		});
+}