installed

Read all the installed packages in a folder, and produce an Array of all the data.

A wrapper around npm's read-installed that produces a flat array rather than a nested tree structure. Also adds a few bells and whistles.

Why? Arrays are far easier to process and reason about than nested objects.

Installation

npm install --save installed

Usage

var installed = require('installed')

// default options
var options = {
  dev: false,      // exclude all dev dependencies
  depth: Infinity, // depth to traverse
  extraneous: true // includes extraneous deps. Set to false to filter extraneous dependencies out.
}

// options is optional
installed(process.cwd(), options, function(err, pkgs) {
  if (err) throw err;
  var pkgVersions = pkgs.map(function(dep) {
    return dep.name + '@' + dep.version
  })

  console.log(pkgVersions.join('\n'))
})

installed.toArray

var installed = require('installed')

// some pre-calculated npm-ls json data
// e.g. npm ls --json > ./data.json
var depsData = require('./data.json')

// convert nested deps data to array
var depsArray = installed.toArray(depsData)

CLI

> installed --help
Read installed package data.

Usage: installed [options]

Options:
  --dev            Include development dependencies.
  --extraneous     Show extraneous dependencies                                                                   [default: true]
  --no-extraneous  Filter extraneous dependencies. This will include --dev dependencies if --dev is not enabled.
  --depth          Traversal depth. use --depth=Infinity or --depth=-1 to traverse entire dependency tree.        [default: 0]
  --color          Display coloured output. Auto-disabled if output is not a terminal.                            [default: true]
  --no-color       Don't display coloured output, strictly JSON.
  --json           Produce JSON output. Implies --no-color.
  --help           Show help
  --version        Show version number

Data Structure Sample

The program below serializes the result of running installed in the installed directory. You can see the result of this output at installed-sample.json

Note you'll need to use something like json-stringify-safe in order to safely serialize the data produced by installed, as it contains circular references.

var stringify = require('json-stringify-safe');
var installed = require('installed')
var fs = require('fs')

installed(process.cwd(), {depth: 0}, function(err, pkgs) {
  if(err) throw err;
  console.log(stringify(i, null, 2))
})

See Also

• pkgrep

Note about versions < 2.0.0

pkgrep was briefly known as installed so versions of installed < 2.0.0 are actually deprecated versions of pkgrep.

License

MIT