info.php

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<?php
/* Copyright (c) 2019 ILIAS open source, Extended GPL, see docs/LICENSE */
 
define("HASH_ALGO", "sha1");
define("COMPOSER_LOCK_PATH", __DIR__."/composer.lock");
define("VENDOR_PATH", __DIR__."/vendor");
 
header("Content-Type: text/plain");
 
echo "composer.lock: ".composer_lock_hash()."\n";
echo "vendor:        ".vendor_hash()."\n";
 
function composer_lock_hash() {
        if (!file_exists(COMPOSER_LOCK_PATH)) {
                return "composer.lock does not exist";
        }
        return hash_file(HASH_ALGO, COMPOSER_LOCK_PATH);
}
 
function vendor_hash() {
        if(!file_exists(VENDOR_PATH)) {
                return "vendor directory does not exist";
        }
        return hash_directory(HASH_ALGO, VENDOR_PATH, [VENDOR_PATH."/autoload.php", VENDOR_PATH."/composer"]);
}
 
function hash_directory($algo, $path, $exclude = []) {
        $content = scandir($path);
        sort($content);
        return hash(
                HASH_ALGO,
                implode(
                        "",
                        array_map(
                                function($o) use ($algo, $path, $exclude) {
                                        if ($o === "." || $o === ".." || $o === ".git") {
                                                return "";
                                        }
                                        $o = "$path/$o";
                                        if (is_link($o) || in_array($o, $exclude)) {
                                                return "";
                                        }
                                        if (is_dir($o)) {
                                                return hash_directory($algo, $o);
                                        }
                                        return hash_file($algo, $o);
                                },
                                $content
                        )
                )
        );
}