#A Multi-Framework Composer Library Installer

This is for PHP package authors to require in their composer.json. It will install their package to the correct location based on the specified package type.

The goal of Installers is to be a simple package type to install path map. Users can also customize the install path per package and package authors can modify the package name upon installing.

Installers isn't intended on replacing all custom installers. If your package requires special installation handling then by all means, create a custom installer to handle it.

Natively Supported Frameworks:

Most frameworks these days natively work with Composer and will be installed to the default vendor directory. composer/installers is not needed to install packages with these frameworks.

#Alternative to custom installers with Composer 2.1+

As of Composer 2.1, the Composer\InstalledVersions class has a getInstalledPackagesByType method which can let you figure out at runtime which plugins/modules/extensions are installed.

It is highly recommended to use that instead of building new custom installers if you are building a new application. This has the advantage of leaving all vendor code in the vendor directory, and not requiring custom installer code.

#Current Supported Package Types

Stable types are marked as bold, this means that installation paths for those type will not be changed. Any adjustment for those types would require creation of brand new type that will cover required changes.

Framework	Types
Akaunting	akaunting-module
Asgard	asgard-module asgard-theme
Attogram	attogram-module
AGL	agl-module
Bonefish	bonefish-package
AnnotateCms	annotatecms-module annotatecms-component annotatecms-service
Bitrix	bitrix-module (deprecated) bitrix-component (deprecated) bitrix-theme (deprecated) bitrix-d7-module bitrix-d7-component bitrix-d7-template
CakePHP 2+	cakephp-plugin
Chef	chef-cookbook chef-role
CiviCrm	civicrm-ext
CCFramework	ccframework-ship ccframework-theme
Cockpit	cockpit-module
CodeIgniter	codeigniter-library codeigniter-third-party codeigniter-module
concrete5	concrete5-core concrete5-package concrete5-theme concrete5-block concrete5-update
Croogo	croogo-plugin croogo-theme
Decibel	decibel-app
Dframe	dframe-module
DokuWiki	dokuwiki-plugin dokuwiki-template
Dolibarr	dolibarr-module
Drupal	drupal-core drupal-module drupal-theme drupal-library drupal-profile drupal-database-driver drupal-drush drupal-custom-theme drupal-custom-module drupal-custom-profile drupal-drupal-multisite drupal-console drupal-console-language drupal-config
Elgg	elgg-plugin
Eliasis	eliasis-component eliasis-module eliasis-plugin eliasis-template
ExpressionEngine 3	ee3-addon ee3-theme
eZ Platform	ezplatform-assets ezplatform-meta-assets
FuelPHP v1.x	fuel-module fuel-package fuel-theme
FuelPHP v2.x	fuelphp-component
Grav	grav-plugin grav-theme
Hurad	hurad-plugin hurad-theme
ImageCMS	imagecms-template imagecms-module imagecms-library
iTop	itop-extension
Kanboard	kanboard-plugin
Known	known-plugin known-theme known-console
KodiCMS	kodicms-plugin kodicms-media
Kohana	kohana-module
Lan Management System	lms-plugin lms-template lms-document-template lms-userpanel-module
Laravel	laravel-library
Lavalite	lavalite-theme lavalite-package
Lithium	lithium-library lithium-source
Magento	magento-library magento-skin magento-theme
majima	majima-plugin
Mako	mako-package
MantisBT	mantisbt-plugin
Matomo	matomo-plugin
Mautic	mautic-core mautic-plugin mautic-theme
Maya	maya-module
MODX	modx-extra
MODX Evo	modxevo-snippet modxevo-plugin modxevo-module modxevo-template modxevo-lib
MediaWiki	mediawiki-extension
Miaoxing	miaoxing-plugin
October	october-module october-plugin october-theme
OntoWiki	ontowiki-extension ontowiki-theme ontowiki-translation
OXID	oxid-module oxid-theme oxid-out
Osclass	osclass-plugin osclass-theme osclass-language
MODULEWork	modulework-module
Moodle	moodle-* (Please check source for all supported types)
Pantheon	quicksilver-script quicksilver-module
Piwik	piwik-plugin
Phifty	phifty-bundle phifty-framework phifty-library
phpBB	phpbb-extension phpbb-style phpbb-language
Plentymarkets	plentymarkets-plugin
PPI	ppi-module
Prestashop	prestashop-module prestashop-theme
Puppet	puppet-module
Porto	porto-container
ProcessWire	processwire-module
RadPHP	radphp-bundle
REDAXO	redaxo-addon
REDAXO bestyle-plugin	redaxo-bestyle-plugin
REDAXO V5.*	redaxo5-addon
REDAXO V5.* bestyle-plugin	redaxo5-bestyle-plugin
ReIndex	reindex-plugin reindex-theme
Roundcube	roundcube-plugin
shopware	shopware-backend-plugin shopware-core-plugin shopware-frontend-plugin shopware-theme shopware-plugin shopware-frontend-theme
SilverStripe	silverstripe-module silverstripe-theme
SiteDirect	sitedirect-module sitedirect-plugin
SMF	smf-module smf-theme
Starbug	starbug-module starbug-theme starbug-custom-module starbug-custom-theme
SyDES	sydes-module sydes-theme
Sylius	sylius-theme
TAO	tao-extension
TastyIgniter	tastyigniter-module tastyigniter-extension tastyigniter-theme
Tusk	tusk-task tusk-command tusk-asset
UserFrosting	userfrosting-sprinkle
Vanilla	vanilla-plugin vanilla-theme
Vgmcp	vgmcp-bundle vgmcp-theme
WHMCS	whmcs-addons whmcs-fraud whmcs-gateways whmcs-notifications whmcs-registrars whmcs-reports whmcs-security whmcs-servers whmcs-social whmcs-support whmcs-templates whmcs-includes
Winter CMS	winter-module winter-plugin winter-theme
Wolf CMS	wolfcms-plugin
WordPress	wordpress-plugin wordpress-theme wordpress-muplugin wordpress-dropin
YAWIK	yawik-module
Zend	zend-library zend-extra zend-module
Zikula	zikula-module zikula-theme

#Example composer.json File

This is an example for a CakePHP plugin. The only important parts to set in your composer.json file are "type": "cakephp-plugin" which describes what your package is and "require": { "composer/installers": "~1.0" } which tells composer to load the custom installers.

{
    "name": "you/ftp",
    "type": "cakephp-plugin",
    "require": {
        "composer/installers": "~1.0"
    }
}

This would install your package to the Plugin/Ftp/ folder of a CakePHP app when a user runs php composer.phar install.

So submit your packages to packagist.org!

#Custom Install Paths

If you are requiring a package which has one of the supported types you can override the install path with the following extra in your composer.json:

{
    "extra": {
        "installer-paths": {
            "your/custom/path/{$name}/": ["shama/ftp", "vendor/package"]
        }
    }
}

You can determine a non-standard installation path for all packages of a particular type with the type: prefix. The type must be one of types listed on the supported list above.

{
    "extra": {
        "installer-paths": {
            "your/custom/path/{$name}/": ["type:wordpress-plugin"]
        }
    }
}

You can also install all packages by a particular vendor to a custom installation path by using the vendor: prefix. The path will still only apply to packages by the vendor with a type in the supported list.

{
    "extra": {
        "installer-paths": {
            "your/custom/path/{$name}/": ["vendor:my_organization"]
        }
    }
}

These would use your custom path for each of the matching packages. The available variables to use in your paths are: {$name}, {$vendor}, {$type}.

Note: If multiple custom installer-paths match for the same package, the first one which matches will be used.

#Custom Install Names

If you're a package author and need your package to be named differently when installed consider using the installer-name extra.

For example you have a package named shama/cakephp-ftp with the type cakephp-plugin. Installing with composer/installers would install to the path Plugin/CakephpFtp. Due to the strict naming conventions, you as a package author actually need the package to be named and installed to Plugin/Ftp. Using the following config within your package composer.json will allow this:

{
    "name": "shama/cakephp-ftp",
    "type": "cakephp-plugin",
    "extra": {
        "installer-name": "Ftp"
    }
}

Please note the name entered into installer-name will be the final and will not be inflected.

#Disabling installers

There may be time when you want to disable one or more installers from composer/installers. For example, if you are managing a package or project that uses a framework specific installer that conflicts with composer/installers but also have a dependency on a package that depends on composer/installers.

Installers can be disabled for your project by specifying the extra installer-disable property. If set to true, "all", or "*" all installers will be disabled.

{
    "extra": {
        "installer-disable": true
    }
}

Otherwise a single installer or an array of installers may be specified.

{
    "extra": {
        "installer-disable": [
            "cakephp",
            "drupal"
        ]
    }
}

Note: Using a global disable value (true, "all", or "*") will take precedence over individual installer names if used in an array. The example below will disable all installers.

{
    "extra": {
        "installer-disable": [
          "drupal",
          "all"
        ]
    }
}

#Should we allow dynamic package types or paths? No

What are they? The ability for a package author to determine where a package will be installed either through setting the path directly in their composer.json or through a dynamic package type: "type": "framework-install-here".

It has been proposed many times. Even implemented once early on and then removed. Installers won't do this because it would allow a single package author to wipe out entire folders without the user's consent. That user would then come here to yell at us.

Anyone still wanting this capability should consider requiring https://github.com/oomphinc/composer-installers-extender.