dependency-info

Read useful info from your dependency tree. It supports both npm and bower.

Install

npm install dependency-info

Usage

First af all, you have to retrieve your dependency tree.

The async way

var dependencyInfo = require('dependency-info');
dependencyInfo.readTree({
    manager: 'npm'
})
.then(function (tree) {
    ...
})
.catch(function (err) {
    ...
});

Of course, you can also get it synchronously

var dependencyInfo = require('dependency-info')
    list, 
    tree;
tree = dependencyInfo.readTreeSync({
	manager: 'npm'
});

Parameters

readTreeand readTreeSync accept the same options param:

{
path:       {String}    path to module whose dependencies will be fetched. 
                        Default: process.cwd() 
manager:    {String}    Package manager: 'npm' or 'bower'
type:       {String}    All dependencies: 'all' (default)
            or
            {Array}     Accepted values: 'dependencies' and 'devDependencies'
deep:       {Boolean}   If true it search for all dependencies, not only the direct ones. 
                        Default value: false
filterBy:   
    {
        keyword: {Array} List of keywords the dependency must have
    }
}

How to use this info

Tree object provides you a method to get a sorted Array of the information you need.

tree.list(fields, order)

This method looks over the tree and returns an ordered array of key value objects filled with the specified fields, which will be taken from each dependency json file.

fields {Array}
Property names form json files. You can also use 'path', which will contain the full path to dependency directory.
order {String}
Sort dependencies in ascending ('asc') or descending order ('desc')

Examples

Case 1: Getting path to main JS of your gulp plugins

var dependencyInfo = require('dependency-info');
dependencyInfo.readTree({
    manager: 'npm',
    filterBy: {
        keyword: 'gulpplugin'
    }
})
.then(function (tree) {
    var list = tree.list(['name', 'path', 'main', 'files'], 'asc');
})

As a result, list and the following structure will be alike.

[ { name: 'gulp-autoprefixer',
    path: '/var/my-project/node_modules/gulp-autoprefixer',
    main: undefined,
    files: [ 'index.js' ] },
  { name: 'gulp-copy',
    path: '/var/my-project/node_modules/gulp-copy',
    main: 'index.js',
    files: undefined },
  { name: 'gulp-minify-css',
    path: '/var/my-project/node_modules/gulp-minify-css',
    main: undefined,
    files: [ 'index.js' ] },
  { name: 'gulp-prettify',
    path: '/var/my-project/node_modules/gulp-prettify',
    main: 'index.js',
    files: undefined },
  { name: 'gulp-rename',
    path: '/var/my-project/node_modules/gulp-rename',
    main: './index.js',
    files: [ 'index.js' ] },
  { name: 'gulp-sass',
    path: '/var/my-project/node_modules/gulp-sass',
    main: 'index.js',
    files: undefined },
  { name: 'gulp-strip-css-comments',
    path: '/var/my-project/node_modules/gulp-strip-css-comments',
    main: undefined,
    files: [ 'index.js' ] } ]

Case 2: Logging version info synchronously

var dependencyInfo = require('dependency-info')
    list, 
    tree;
tree = dependencyInfo.readTreeSync({
    manager: 'npm'
});
list = tree.list(['name', 'version'], 'asc');
console.log(list);

This code will output a message like this:

[ { name: 'connect-livereload', version: '0.5.3' },
  { name: 'express', version: '4.12.3' },
  { name: 'gulp', version: '3.8.11' },
  { name: 'gulp-autoprefixer', version: '2.2.0' },
  { name: 'gulp-copy', version: '0.0.2' },
  { name: 'gulp-kit', version: '0.1.1' },
  { name: 'gulp-minify-css', version: '1.1.0' },
  { name: 'gulp-prettify', version: '0.3.0' },
  { name: 'gulp-rename', version: '1.2.2' },
  { name: 'gulp-sass', version: '1.3.3' },
  { name: 'gulp-strip-css-comments', version: '1.1.0' },
  { name: 'tiny-lr', version: '0.1.5' } ]

License

MIT. See LICENSE for details.