Loom, the Loomble CLI utility
Last updated 4 years ago by loomble .
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Loom: Loomble CLI (Command Line Interface)

Getting started

Loomble and the Loomble CLI requires Node.js >=6.2.2 and npm >=3.9.5.


Run the following command in your terminal:

npm install @loomble/cli -g

After the installation finishes, you'll have a new loom command available globally in your system terminal.

Create a Loomble app

Run the following command in your terminal:

loom init YourAppName

A single instance of Loomble can process multiple apps, just run the command each time you want to add a new app. When you initialize your first app, Loomble will be installed in node_modules and a package.json file will be created in the directory the command is issued from.

Run Loomble

After your first app has been setup, run loom env to get instructions for the environment variables that will need to be set before Loomble can run.

Once you have the environment variables set, run one of the following commands: To run in development mode:

loom dev

or run in production mode:

loom prod

Create custom commands in your Loomble instance

Loomble CLI uses commander under the hood, so you can easily add commands to your Loomble setup by placing files in a directory named @cli at the root of your project. Every root file in your @cli directory will be loaded automatically.

These files are not processed by Babel, you are limited to the JavaScript support of your current version of Node.js.

Custom commands must adhere to the following format:

'use strict'

module.exports = function(cli) {
    .description('Command description')
    .action((options) => {
      // If you need Babel, you can use Loomble's babel register hook:

For more documentation on available features, see commander. To view all of the available commands for your project, just run help:

loom -h

The cli argument passed to each command function is an object which contains the following properties:

  • envName: The environment name, development or production.

  • spinner(message): Creates a spinner in the terminal with the specified message.


    const spin = cli.spinner('Loading')
    // Run some code
  • chalk: See chalk on npm

  • console: An object that contains the following console helpers:

    • errorText(msg)
    • warnText(msg)
    • infoText(msg)
    • boldText(msg)
    • refText(msg) (for a code reference)
    • wrapText(msg) (wrap text to 80 characters per line)


    const { infoText } = cli.console
    console.log(`Hello ${infoText('World')}`)
  • spawn: See cross-spawn on npm

  • spawnSync: ^ From cross-spawn

  • config: The processed Loomble instance configuration object


Loom (Loomble-CLI) is licensed under the standard BSD 3-Clause License. We also provide an additional patent grant.

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