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papua now has built-in support for localDependencies with symlinks working well

synec
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0.2.2 • Public • Published

synec

synec

Install local npm packages by listing them as localDependencies in your package.json.

{
  "name": "my-project",
  "dependencies": {
    "react": "^17.0.0"
  },
  "localDependencies": {
    "my-react-plugin": "../my-react-plugin"
  }
}

Features

  • Installs npm packages from local folders
  • Watches for changes and copies them over directly
  • Installs dependencies of local packages
  • Reinstalls only when changes have been made
  • Runs build or watch script before installing plugin
  • webpack plugin for seamless integration

Installation

Requires node >= 14 (Published as ES Module, localDependencies possible with ESM or CJS)

npm install synec

Options

synec --watch (default false) Watch localDependencies for changes until the current script is closed.

synec --no-script (default true) Disable running build or watch script before installing the plugin.

synec --no-production (default true) Don't install localDependencies in process.env.NODE_ENV === 'production' or webpack production mode.

Usage

There are different ways how and where to integrate the plugin approprite for different use cases.

Installation before running scripts

Add synec in front of a script inside package.json and it will make sure localDependencies are installed and up-to-date when the following command starts. The next script in the chain will be started once the installation is done.

{
  "scripts": {
    "start": "synec --watch && webpack serve",
    "watch": "synec --watch && webpack watch",
    "build": "synec && webpack build"
  }
}

Installation together with regular dependencies

localDependencies can be installed along with regular ones by adding a postinstall script that will be run during a regular install with npm install.

{
  "scripts": {
    "start": "webpack --watch",
    "postinstall": "synec"
  }
}

Right before Build as a webpack Plugin

If your setup is using webpack using this plugin is preferred. Create a webpack.config.js and add the plugin there.

// File webpack.config.js
import { LocalDependenciesPlugin } from 'synec'

export default {
  plugins: [new LocalDependenciesPlugin()],
}

Note that this only works if your project is set up with ES Modules ("type": "module" in package.json). The same options as described above are available.

new LocalDependenciesPlugin({
  // Watch localDependencies for changes and automatically copy them over.
  watch: true, // Always disabled in webpack-production mode, default: false.
  // If available run build or watch script before installation.
  script: false, // default, true.
  // Also install local dependencies in production mode.
  production: false, // default, true.
})

Motivation

If you want to test your plugin or a fork of a popular plugin that you modified locally in your project you can do this by installing it through npm like npm install ../my-plugin or list it in dependencies as "my-plugin": "file:../my-plugin". However this will not install the plugin as it would do for a published npm package. It's creating a symlink to your project inside node_modules and the plugins dependencies will not be installed in your project as it's using the one's found inside the symlink. For me personally this often resulted in problems and didn't adequately mock the environment that would later exist once the plugin is published on npm.

For a quick solution you can also do npm i --no-save $(npm pack ../my-plugin | tail -1) which is what this plugin does and what I used to test it. It will install the plugin as if were published to npm.

Upcoming Features

  • npx synec --path ../my-plugin
  • Watch dependencies of local dependencies in package.json
  • Watch localDependencies object in package.json for changes

Similar

This plugin is similar and partially inspired by relative-deps but provides additional features such as installing plugin dependencies, watching for changes and integration into build tools which are deemed essential for optimal developer experience.

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Install

npm i synec

Weekly Downloads

1

Version

0.2.2

License

MIT

Unpacked Size

25.4 kB

Total Files

10

Last publish

Collaborators

  • tobua