jonnnnyw / phantomjs-installer

A Composer Package which installs the PhantomJS binary (Linux, Windows, Mac) into /bin of your project.

phantomjs-installer

A Composer package which installs the PhantomJS binary (Linux, Windows, Mac) into /bin of your project.

Installation

To install PhantomJS as a local, per-project dependency to your project, simply add a dependency on jakoch/phantomjs-installer to your project's composer.json file.

{
    "require": {
        "jakoch/phantomjs-installer": "2.0.0"
    },
    "config": {
        "bin-dir": "bin"
    },
    "scripts": {
        "post-install-cmd": [
            "PhantomInstaller\\Installer::installPhantomJS"
        ],
        "post-update-cmd": [
            "PhantomInstaller\\Installer::installPhantomJS"
        ]
    }
}

For a development dependency, change require to require-dev.

The version number of the package specifies the PhantomJS version! If you specify "dev-master" the version "2.0.0" will be fetched. If you specify a explicit commit reference with a version, e.g. "dev-master#commit-ref as [version]", then [version] will be used.

The download source used is: https://bitbucket.org/ariya/phantomjs/downloads/

By setting the Composer configuration directive bin-dir, the vendor binaries will be installed into the defined folder. Important! Composer will install the binaries into vendor\bin by default.

The scripts section is necessary, because currently Composer does not pass events to the handler scripts of dependencies. If you leave it away, you might execute the installer manually.

Now, assuming that the scripts section is set up as required, the PhantomJS binary will be installed into the /bin folder and updated alongside the project's Composer dependencies.

How does this work internally?

1. Fetching the PhantomJS Installer In your composer.json you require the package "phantomjs-installer". The package is fetched by composer and stored into ./vendor/jakoch/phantomjs-installer. It contains only one file the PhantomInstaller\\Installer.

2. Platform-specific download of PhantomJS The PhantomInstaller\\Installer is run as a "post-install-cmd". That's why you need the "scripts" section in your "composer.json". The installer creates a new composer in-memory package "phantomjs", detects your OS and downloads the correct Phantom version to the folder ./vendor/jakoch/phantomjs. All PhantomJS files reside there, especially the examples.

3. Installation into /bin folder The binary is then copied from ./vendor/jakoch/phantomjs to your composer configured bin-dir folder.

PhantomBinary

To access the binary and its folder easily, the class PhantomBinary is created automatically during installation.

The class defines the constants BIN and DIR:

• BIN is the full-path to the PhantomJS binary file, e.g. /your_project/bin/phantomjs
• DIR is the folder of the binary, e.g. /your_project/bin

Both constants are also accessible via their getter-methods getBin() and getDir().

Usage:

use PhantomInstaller\PhantomBinary;

// get values with class constants

$bin = PhantomInstaller\PhantomBinary::BIN;
$dir = PhantomInstaller\PhantomBinary::DIR;

// get values with static functions

$bin = PhantomInstaller\PhantomBinary::getBin();
$dir = PhantomInstaller\PhantomBinary::getDir();

This feature is similar to location.js of the phantomjs module for Node.