README

A composer plugin to check that local binaries / executables are installed and are of the correct version before package install.

If you require composer 2.x support please use version >= 1.2.

Composer Bin Dependencies plugin can warn users of these missing dependencies or prevent installation completely.

An example would be a package which relies on git being available with a version higher than 2.0. By requiring this plugin and adding the constraint shown below to you `package.json', you can prevent installation:

...
"extra": {
    "binary-dependencies": {
        "require": {
            "git": ">=2.0"
        }
    }
}
...

Installation

$ composer require olsgreen/composer-bin-dependencies

Usage

You can validate dependencies are available using either require or warn.

require will throw an exception and prevent installation if the constraints are not met.

warn simply prints a warning message to the user if the constraints are not met.

{
    "require": {
        "olsgreen/composer-bin-dependencies": "dev-master"
    },
    "extra": {
        "binary-dependencies": {
            "require": {
                "git": ">=2.0",
                "ssh": "*"
            },
            "warn": {
                "convert": "<=7.0.8",
                "python": "<=3.0"
            }
        }
    }
}

Disabling The Plugin

Sometimes you may need to disable the plugin, you can achieve this by setting the environment variable DISABLE_COMPOSER_BIN_DEPS with a value of 1 before running composer commands. This can be achieved by running the following command in your terminal:

export DISABLE_COMPOSER_BIN_DEPS=1

Version Constraints

Only explicit binaries support version constraints, this is due to the need to call the binary to obtain its version number. The definitions can be found binaries.json configuration file, feel free to open a pull request to add more.

License

MIT