From ca63f4afa1f67b6ce01f9be85810b0b4785a8c4b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Mateusz=20Burzy=C5=84ski?= Date: Wed, 20 Jun 2018 13:29:14 +0200 Subject: [PATCH] Working plugin --- .babelrc.js | 12 ++++++++++++ .gitignore | 2 ++ .lintstagedrc | 10 ++++++++++ .npmrc | 1 + README.md | 1 + package.json | 45 +++++++++++++++++++++++++++++++++++++++++++++ rollup.config.js | 22 ++++++++++++++++++++++ src/index.js | 46 ++++++++++++++++++++++++++++++++++++++++++++++ src/utils.js | 22 ++++++++++++++++++++++ 9 files changed, 161 insertions(+) create mode 100644 .babelrc.js create mode 100644 .gitignore create mode 100644 .lintstagedrc create mode 100644 .npmrc create mode 100644 README.md create mode 100644 package.json create mode 100644 rollup.config.js create mode 100644 src/index.js create mode 100644 src/utils.js diff --git a/.babelrc.js b/.babelrc.js new file mode 100644 index 0000000..301ed62 --- /dev/null +++ b/.babelrc.js @@ -0,0 +1,12 @@ +const { BABEL_ENV, NODE_ENV } = process.env +const modules = BABEL_ENV === 'cjs' || NODE_ENV === 'test' ? 'commonjs' : false +const loose = true + +module.exports = { + presets: [ + ['@babel/env', { + loose, + modules, + }], + ], +} diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..f06235c --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +node_modules +dist diff --git a/.lintstagedrc b/.lintstagedrc new file mode 100644 index 0000000..f5bcf6d --- /dev/null +++ b/.lintstagedrc @@ -0,0 +1,10 @@ +{ + "{src,__tests__}/**/*.js": [ + "prettier --single-quote --no-semi --trailing-comma=all --write", + "git add" + ], + "*.md": [ + "prettier --single-quote --no-semi --trailing-comma=all --write", + "git add" + ] +} diff --git a/.npmrc b/.npmrc new file mode 100644 index 0000000..43c97e7 --- /dev/null +++ b/.npmrc @@ -0,0 +1 @@ +package-lock=false diff --git a/README.md b/README.md new file mode 100644 index 0000000..47a45b3 --- /dev/null +++ b/README.md @@ -0,0 +1 @@ +# rollup-plugin-dotenv diff --git a/package.json b/package.json new file mode 100644 index 0000000..6a68385 --- /dev/null +++ b/package.json @@ -0,0 +1,45 @@ +{ + "name": "rollup-plugin-dotenv", + "version": "0.0.0", + "description": "", + "main": "dist/rollup-plugin-dotenv.js", + "files": [ + "dist" + ], + "scripts": { + "precommit": "lint-staged", + "prebuild": "rimraf dist", + "build": "rollup -c", + "prepare": "npm run build" + }, + "repository": { + "type": "git", + "url": "git+https://github.com/Andarist/rollup-plugin-dotenv.git" + }, + "keywords": [ + "rollup", + "dotenv" + ], + "author": "Mateusz Burzyński (https://github.com/Andarist)", + "license": "MIT", + "bugs": { + "url": "https://github.com/Andarist/rollup-plugin-dotenv/issues" + }, + "homepage": "https://github.com/Andarist/rollup-plugin-dotenv#readme", + "devDependencies": { + "@babel/core": "7.0.0-beta.51", + "@babel/plugin-proposal-object-rest-spread": "7.0.0-beta.51", + "@babel/preset-env": "7.0.0-beta.51", + "builtin-modules": "^3.0.0", + "husky": "^0.14.3", + "lint-staged": "^7.0.0", + "prettier": "^1.13.5", + "rimraf": "^2.6.2", + "rollup": "^0.60.7", + "rollup-plugin-babel": "4.0.0-beta.5" + }, + "dependencies": { + "dotenv": "^6.0.0", + "rollup-plugin-replace": "^2.0.0" + } +} diff --git a/rollup.config.js b/rollup.config.js new file mode 100644 index 0000000..8ea246e --- /dev/null +++ b/rollup.config.js @@ -0,0 +1,22 @@ +import babel from 'rollup-plugin-babel' +import builtinModules from 'builtin-modules' +import pkg from './package.json' + +const makeExternalPredicate = externalsArr => { + if (externalsArr.length === 0) { + return () => false + } + const externalPattern = new RegExp(`^(${ externalsArr.join('|') })($|/)`) + return id => externalPattern.test(id) +} + +export default { + input: 'src/index.js', + output: { file: pkg.main, format: 'cjs' }, + external: makeExternalPredicate([ + ...builtinModules, + ...Object.keys(pkg.dependencies || {}), + ...Object.keys(pkg.peerDependencies || {}), + ]), + plugins: [babel()], +} diff --git a/src/index.js b/src/index.js new file mode 100644 index 0000000..525f7ad --- /dev/null +++ b/src/index.js @@ -0,0 +1,46 @@ +import fs from 'fs' +import path from 'path' +import dotenv from 'dotenv' +import replace from 'rollup-plugin-replace' +import { mapKeys, mapValues, pick, pipe, shallowMergeAll } from './utils' + +const withDefaults = ({ cwd = '.', envKey = 'NODE_ENV' } = {}) => ({ + cwd: path.resolve(process.cwd(), cwd), + envKey, +}) + +export default function dotenvPlugin(inputOptions) { + const { cwd, envKey } = withDefaults(inputOptions) + + return { + ...replace( + pipe( + priorities => + [...priorities] + .reverse() + .map(dotenvFile => path.join(cwd, dotenvFile)) + .filter(fs.existsSync) + .map(dotenvFile => fs.readFileSync(dotenvFile)) + .map(dotenv.parse), + shallowMergeAll, + envVars => + shallowMergeAll([ + envVars, + pick( + Object.keys(envVars).filter( + key => process.env[key] !== undefined, + ), + process.env, + ), + ]), + envVars => mapKeys(key => `process.env.${key}`, envVars), + envVars => mapValues(value => JSON.stringify(value), envVars), + )([ + `.env.${process.env[envKey]}.local`, + `.env.${process.env[envKey]}`, + '.env', + ]), + ), + name: 'dotenv', + } +} diff --git a/src/utils.js b/src/utils.js new file mode 100644 index 0000000..0be41c5 --- /dev/null +++ b/src/utils.js @@ -0,0 +1,22 @@ +export const mapKeys = (mapper, obj) => + Object.keys(obj).reduce((acc, key) => { + acc[mapper(key)] = obj[key] + return acc + }, {}) + +export const mapValues = (mapper, obj) => + Object.keys(obj).reduce((acc, key) => { + acc[key] = mapper(obj[key]) + return acc + }, {}) + +export const pick = (props, obj) => + props.reduce((acc, prop) => { + acc[prop] = obj[prop] + return acc + }, {}) + +export const pipe = (...funcs) => + funcs.reduceRight((piped, next) => (...args) => piped(next(...args))) + +export const shallowMergeAll = objs => Object.assign(...objs)