This tool generate local cache of your dependencies and install satis server to use it

cache-composer.php

#!/usr/bin/php
<?php
$cacheDestination = isset($argv[1]) ?$argv[1] : null;
$satisDestination = isset($argv[2]) ?$argv[2] : null;
$composerFile = 'server-satis.json';

if (in_array($cacheDestination, array('--help', null))) {
    die(sprintf('Accelerator for composer
        
This tool generate local cache of your dependencies, 
and install satis to use it.


Usage:

    1. add your composer.json file here
    2. run ./%s /path/to/store/cache /path/to/install/satis
    
', basename(__FILE__)));
}

if (!file_exists($cacheDestination)) {
    die("Destination doesn't exist");
}
$cacheDestination = realpath($cacheDestination);
$cacheDestination = rtrim($cacheDestination, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;


// get composer
echo "\nGet composer";
if (!file_exists('composer.phar')) {
    shell_exec('wget http://getcomposer.org/composer.phar');
}


// get used packages
echo "\nGet used packages";
exec('php composer.phar install --dev --dry-run --no-interaction', $out, $return);
if (0 !== $return) {
    die(PHP_EOL . implode(PHP_EOL, $out) . PHP_EOL);
}

$lines = array_filter($out, function($v) {
            return preg_match('!\- Installing !', $v);
        }
);
echo "\nInstall each package in $cacheDestination";
$packages = array();
foreach ($lines as $line) {
    preg_match('!Installing\s+(.*?) !', $line, $m);
    list(, $name) = $m;


    // search on packagist
    $url = sprintf('https://packagist.org/p/%s.json', $name);
    $json = json_decode(file_get_contents($url));

    $p = current($json->packages);
    $p = current($p);
    $url = $p->source->url;

    // clone
    echo sprintf("\ncloning %s", $name);
    $name = preg_replace('([^A-Za-z0-9])', '-', $name);
    $dirname = $cacheDestination . $name . '.git';
    array_push($packages, $dirname);


    if (file_exists($dirname)) {
        continue;
    } else {
        $command = sprintf('git clone %s %s', $url, $dirname);
        `$command`;
    }
}


// server-satis.json
$content = '{
    "name":"composer local cache",
    "repositories": [ ';
foreach ($packages as $n => $dir) {
    $content .=
            "\n\t" . ($n == 0 ? '' : ',') . '{'
            . "\n\t\t" . '"type": "vcs",'
            . sprintf("\n\t\t" . '"url": "%s"', $dir)
            . "\n\t" . '}';
}
$content .= PHP_EOL . '] }';
file_put_contents($composerFile, $content);



// satis
echo "\n\nInstallation of Satis...";
if (!file_exists('satis')) {
    $command = 'php composer.phar create-project composer/satis --stability=dev --no-interaction';
    shell_exec($command);
}
// package
echo "\nCreating package and install server";
$command = sprintf('php satis/bin/satis build %s %s', $composerFile, $satisDestination);
shell_exec($command);

echo "Your satis server is installed and configured.";
echo "\n\n" . 'Now:
    1. add virtualhost on ' . realpath($satisDestination) . '
    2. add the following content to your composer.json:
        "repositories": [
        {
            "type": "composer",
            "url": "<your host>"
        },
        {
            "packagist": false
        }
    ]

';