[composer-php] How to get list of all installed packages along with version in composer?

I have been working on a project using Symfony 2.1 on my local machine. I have uploaded it to my server but when I try and install the vendor bundles using Composer, I'm getting a lot of dependency errors. Presumably this is something to do with the latest version of Symfony just being released and my composer.json file not specifying exact version numbers.

Is there any way I can quickly display the version numbers of everything on my local machine?

Here is my composer.json file (which worked fine until a few days ago):

{
    "name": "symfony/framework-standard-edition",
    "description": "The \"Symfony Standard Edition\" distribution",
    "autoload": {
        "psr-0": { "": "src/" }
    },
    "require": {
        "php": ">=5.3.3",
        "symfony/symfony": "2.1.*",
        "doctrine/orm": ">=2.2.3,<2.4-dev",
        "doctrine/doctrine-bundle": "1.0.*",
        "twig/extensions": "1.0.*",
        "symfony/assetic-bundle": "2.1.*",
        "symfony/swiftmailer-bundle": "2.1.*",
        "symfony/monolog-bundle": "2.1.*",
        "sensio/distribution-bundle": "2.1.*",
        "sensio/framework-extra-bundle": "2.1.*",
        "sensio/generator-bundle": "2.1.*",
        "jms/security-extra-bundle": "1.2.*",
        "jms/di-extra-bundle": "1.1.*",
        "sonata-project/admin-bundle": "*",
        "sonata-project/cache-bundle": "dev-master",
        "sonata-project/doctrine-orm-admin-bundle": "dev-master",
        "stof/doctrine-extensions-bundle": "1.1.x-dev",
        "sonata-project/user-bundle": "dev-master",
        "sonata-project/easy-extends-bundle": "dev-master",
        "friendsofsymfony/user-bundle": "2.0.x-dev",
        "friendsofsymfony/jsrouting-bundle": "*",
        "liip/imagine-bundle": "*",
        "simplethings/form-extra-bundle": "dev-master",
        "antimattr/google-bundle": "dev-master",
        "doctrine/doctrine-fixtures-bundle": "dev-master",
        "genemu/form-bundle": "2.1.*",
        "behat/behat":                  "2.4.*@stable",
        "behat/mink":                   "1.4.*@stable",
        "behat/symfony2-extension":     "*@stable",
        "behat/mink-extension":         "*@stable",
        "behat/mink-selenium2-driver":  "*@stable",
        "behat/mink-browserkit-driver":  "*",
        "liip/functional-test-bundle": "dev-master"
    },
    "scripts": {
        "post-install-cmd": [
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile"
        ],
        "post-update-cmd": [
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
            "Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile"
        ]
    },
    "minimum-stability": "dev",
    "extra": {
        "symfony-app-dir": "app",
        "symfony-web-dir": "web"
    },
    "config": {
        "bin-dir": "bin/"
    }
}

If you want to install Symfony2.2, you can see the complete change in your composer.json on the Symfony blog.

Just update your file according to that and run composer update after that. That will install all new dependencies and Symfony2.2 on your project.

If you don't want to update to Symfony2.2, but have dependency errors, you should post these, so we can help you further.

Ivan's answer above is good:

composer global show -i

Added info: if you get a message somewhat like:

Composer could not find a composer.json file in ~/.composer

...you might have no packages installed yet. If so, you can ignore the next part of the message containing:

... please create a composer.json file ...

...as once you install a package the message will go away.

Is there a way to get it via $event->getComposer()->getRepositoryManager()->getAllPackages()

If you only want to check version for only one, you can do

composer show -- twig/twig

Note that only installed packages are shown by default now, and installed option is now deprecated.

To list the globally installed composer packages:

composer global show -i

The behaviour of this command as been modified so you don't have to pass the -i option:

[10:19:05] coil@coil:~/workspace/api$ composer show -i
You are using the deprecated option "installed". 
Only installed packages are shown by default now. 
The --all option can be used to show all packages.

List installed dependencies:

• Flat: composer show -i
• Tree: composer show -i -t

-i short for --installed.

-t short for --tree.

ref: https://getcomposer.org/doc/03-cli.md#show