<img src="https://raw.github.com/alanshaw/david-www/master/david.png" title="David"/> [![Build Status](https://travis-ci.org/alanshaw/david.png)](https://travis-ci.org/alanshaw/david) [![Dependency Status](https://david-dm.org/alanshaw/david.png)](https://david-dm.org/alanshaw/david) [![Coverage Status](https://coveralls.io/repos/alanshaw/david/badge.png?branch=master)](https://coveralls.io/r/alanshaw/david?branch=master)
=====

Nodejs module that tells you when your package NPM dependencies are out of date.


Getting Started
---------------

Install [Node.js](http://nodejs.org/)

Install david:

```sh
  cd /your/project/directory
  npm install david
```

Use:

```javascript
var david = require('david');

// Your package.json
var manifest = {
  name: 'xxx',
  dependencies: {
    'aaa': '~0.0.0',
    'bbb': '~0.0.0',
  },
  devDependencies: {
    'yyy': '~0.0.0',
    'zzz': '~0.0.0',
  }
};

david.getDependencies(manifest, function(er, deps) {
  console.log('latest dependencies information for', manifest.name);
  listDependencies(deps);
});

david.getDependencies(manifest, {dev: true}, function(er, deps) {
  console.log('latest devDependencies information for', manifest.name);
  listDependencies(deps);
});

david.getUpdatedDependencies(manifest, function(er, deps) {
  console.log('dependencies with newer versions for', manifest.name);
  listDependencies(deps);
});

david.getUpdatedDependencies(manifest, {dev: true}, function(er, deps) {
  console.log('devDependencies with newer versions for', manifest.name);
  listDependencies(deps);
});

david.getUpdatedDependencies(manifest, {stable: true}, function(er, deps) {
  console.log('dependencies with newer STABLE versions for', manifest.name);
  listDependencies(deps);
});

david.getUpdatedDependencies(manifest, {dev: true, stable: true}, function(er, deps) {
  console.log('devDependencies with newer STABLE versions for', manifest.name);
  listDependencies(deps);
});

function listDependencies(deps) {
  Object.keys(deps, function(depName) {
    var required = deps[depName].required || '*';
    var stable = deps[depName].stable || 'None';
    var latest = deps[depName].latest;
    console.log("%s Required: %s Stable: %s Latest: %s", depName, required, stable, latest);
  });
}
```

Both `getDependencies` and `getUpdatedDependencies` return an object result, whose keys are package names. The values are objects which contain the following properties:

- `required` - The version required according to the manifest
- `stable` - The latest stable version available
- `latest` - The latest version available (including build and patch versions)


CLI
---

If you install David globally (`npm install -g david`), you can run `david` in your project directory to see which dependencies are out of date.

You can also run `david --global` to see your outdated global dependencies.

### Update to latest

To update all your project dependencies to the latest _stable_ versions, and save to your `package.json`, run:

```sh
david update
```

You can also update global dependencies to latest versions:

```sh
david update --global
```

To update all your project dependencies to the latest versions (including unstable versions), pass the `--unstable` flag:

```sh
david update --unstable
```


Release History
---------------

 * 2013-09-16   v2.1.0   Fixed issues with latest/stable version detection
 * 2013-08-25   v2.0.0   Simplification refactor to remove caching and useless events. Code style changes, performance improvements.
 * 2013-08-04   v1.9.0   CLI added `--unstable` flag to view/update to latest _unstable_ dependency versions
 * 2013-07-30   v1.8.0   CLI added `david update` to update dependencies to latest _stable_ versions and save to your project `package.json`
 * 2013-06-27   v1.7.0   Updated to use semver 2 module. Simplified code that determines if a version is greater than a range
 * 2013-03-28   v1.6.0   Use setImmediate instead of process.nextTick. David now requires NodeJS 0.10.x
 * 2013-03-27   v1.5.0   CLI added --global flag to find outdated global dependencies
 * 2013-03-15   v1.4.0   Allow set the maximum number of dependencies that can be stored in the cache
 * 2013-03-14   v1.3.0   Added CLI support
 * 2013-03-05   v1.2.0   David can now get dependency information for devDependencies
 * 2013-02-07   v1.1.0   Adds onlyStable param to getUpdatedDependencies to filter by dependencies that are updated and stable
 * 2013-02-06   v1.0.0   Return latest stable version as well as latest version (including patch and build versions). API return values changed. Events changed.
