creates a listr to install a list of packages from an array of names

Why

Sometimes it's useful for a CLI to install packages into a directory. you can create a dependency list, but installation has the advantage that the user will not have to call npm install for the packages to become available

Usage

Install the package:

npm i installist

It exports two things: an enumeration DepType and a function insallist. There are two DepType values: MAIN and DEV.

The installist takes 3 parameters:

1. packages: string[] with the list of packages
2. dir: string indicating the directory
3. depType: DepType (MAIN=0 or DEV=1)

It returns a Listr, as specified in the listr package. Here's a sample usage:

import { DepType, installist } from '../src/custom/installist';

const mainInstallation = [
  'barbells',
  '[email protected]',
]

const codeDir='/tmp/testInstallist'

const listrToRun = await installist(mainInstallation,codeDir,DepType.MAIN)
await listrToRun.run()

This code installs into the codeDir directory the latest versions of barbells and version 0.1.10 of geenee-rate. They are added to package.json in codeDir within dependencies.

If DevTypes.DEV value is used, then npm insert -D is called for each element of the dependency list.