composer/doc/composer-schema.json

{
    "name": "Package",
    "type": "object",
    "additionalProperties": false,
    "properties": {
        "name": {
            "type": "string",
            "description": "Package name, including 'vendor-name/' prefix.",
            "required": true
        },
        "type": {
            "description": "Package type, either 'library' for common packages, 'composer-installer' for custom installers, or a custom type defined by whatever project this package applies to.",
            "type": "string"
        },
        "target-dir": {
            "description": "Forces the package to be installed into the given subdirectory path. This is used for autoloading PSR-0 packages that do not contain their full path. Use forward slashes for cross-platform compatibility.",
            "type": "string"
        },
        "description": {
            "type": "string",
            "description": "Short package description.",
            "required": true
        },
        "keywords": {
            "type": "array",
            "items": {
                "type": "string",
                "description": "A tag/keyword that this package relates to."
            }
        },
        "homepage": {
            "type": "string",
            "description": "Homepage URL for the project.",
            "format": "uri"
        },
        "version": {
            "type": "string",
            "description": "Package version, see http://packagist.org/about for more info on valid schemes.",
            "required": true
        },
        "time": {
            "type": "string",
            "description": "Package release date, in 'YYYY-MM-DD' or 'YYYY-MM-DD HH:MM:SS' format."
        },
        "license": {
            "type": ["string", "array"],
            "description": "License name. Or an array of license names."
        },
        "authors": {
            "type": "array",
            "description": "List of authors that contributed to the package. This is typically the main maintainers, not the full list.",
            "items": {
                "type": "object",
                "additionalProperties": false,
                "properties": {
                    "name": {
                        "type": "string",
                        "description": "Full name of the author.",
                        "required": true
                    },
                    "email": {
                        "type": "string",
                        "description": "Email address of the author.",
                        "format": "email"
                    },
                    "homepage": {
                        "type": "string",
                        "description": "Homepage URL for the author.",
                        "format": "uri"
                    }
                }
            }
        },
        "require": {
            "type": "object",
            "description": "This is a hash of package name (keys) and version constraints (values) that are required to run this package.",
            "additionalProperties": true
        },
        "replace": {
            "type": "object",
            "description": "This is a hash of package name (keys) and version constraints (values) that can be replaced by this package.",
            "additionalProperties": true
        },
        "conflict": {
            "type": "object",
            "description": "This is a hash of package name (keys) and version constraints (values) that conflict with this package.",
            "additionalProperties": true
        },
        "provide": {
            "type": "object",
            "description": "This is a hash of package name (keys) and version constraints (values) that this package provides in addition to this package's name.",
            "additionalProperties": true
        },
        "recommend": {
            "type": "object",
            "description": "This is a hash of package name (keys) and version constraints (values) that this package recommends to be installed (typically this will be installed as well).",
            "additionalProperties": true
        },
        "suggest": {
            "type": "object",
            "description": "This is a hash of package name (keys) and version constraints (values) that this package suggests work well with it (typically this will only be suggested to the user).",
            "additionalProperties": true
        },
        "extra": {
            "type": ["object", "array"],
            "description": "Arbitrary extra data that can be used by custom installers, for example, package of type composer-installer must have a 'class' key defining the installer class name.",
            "additionalProperties": true
        },
        "autoload": {
            "type": "object",
            "description": "Description of how the package can be autoloaded.",
            "properties": {
                "psr-0": {
                    "type": "object",
                    "description": "This is a hash of namespaces (keys) and the directories they can be found into (values) by the autoloader.",
                    "additionalProperties": true
                }
            }
        },
        "repositories": {
            "type": ["object", "array"],
            "description": "A set of additional repositories where packages can be found.",
            "additionalProperties": true
        }
    }
}