Add composer/server and create Version class manage

Author: mckenziearts

composer.json

@@ -16,11 +16,13 @@
     "illuminate/support": "~5",
     "cartalyst/sentinel": "2.0.*",
     "cyrildewit/eloquent-viewable": "^3.0",
+    "composer/semver": "^1.4",
     "danielme85/laravel-cconverter": "^0.2.1",
     "ext-zip": "*",
     "ext-json": "*",
     "intervention/image": "^2.4",
     "intervention/imagecache": "^2.3",
+    "knplabs/packagist-api": "^1.5",
     "laravel/scout": "^7.1",
     "league/fractal": "^0.17.0",
     "mcamara/laravel-localization": "^1.3",

src/Core/Version.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Mckenziearts\Shopper\Core;
+
+use Composer\Semver\Semver;
+use Composer\Semver\Comparator;
+use Composer\Semver\VersionParser;
+
+class Version extends Semver
+{
+    /**
+     * Normalize the version number.
+     *
+     * @param string $version
+     *
+     * @return string
+     */
+    public static function normalize($version)
+    {
+        $version = preg_replace('/^(v|\^|~)/', '', $version);
+        if (preg_match('/^\d\.\d$/', $version)) {
+            $version .= '.0';
+        }
+
+        return $version;
+    }
+    /**
+     * Get the last version number from a list of versions.
+     *
+     * @param array $versions
+     *
+     * @return string
+     */
+    public static function latest(array $versions)
+    {
+        // Normalize version numbers.
+        $versions = array_map(function ($version) {
+            return static::normalize($version);
+        }, $versions);
+        // Get the highest version number.
+        $latest = array_reduce($versions, function ($carry, $item) {
+            // Skip unstable versions.
+            if (VersionParser::parseStability($item) !== 'stable') {
+                return $carry;
+            }
+            return Comparator::greaterThan($carry, $item) ? $carry : $item;
+        }, '0.0.0');
+
+        return $latest;
+    }
+}