first commit

.gitignore

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+.idea
+vendor/

LICENSE

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+MIT License
+
+Copyright (c) 2020 minicli
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# minicache
+
+A simple JSON file cache built for minicli (but can be used in any app)

composer.json

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+{
+  "name": "minicli/minicache",
+  "type": "library",
+  "description": "A simple json file cache for minicli",
+  "license": "MIT",
+  "homepage": "https://github.com/minicli/minicli",
+  "keywords": ["micro","cache","json"],
+  "autoload": {
+    "psr-4": {
+      "Minicli\\Minicache\\": "src/"
+    }
+  },
+  "require": {
+    "minicli/minicli": "^1.0",
+    "ext-json": "*"
+  }
+}

src/FileCache.php

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+<?php
+
+namespace Minicli\Minicache;
+
+class FileCache
+{
+    protected $cache_dir;
+    protected $cache_expiry;
+
+    /**
+     * FileCache constructor.
+     * @param string $cache_dir
+     * @param int $cache_expiry
+     */
+    public function __construct($cache_dir, $cache_expiry = 60)
+    {
+        $this->cache_dir = $cache_dir;
+        $this->cache_expiry = $cache_expiry;
+    }
+
+    /**
+     * @param string $unique_identifier
+     * @return string
+     */
+    public function getCacheFile($unique_identifier)
+    {
+        return $this->cache_dir . '/' . md5($unique_identifier) . '.json';
+    }
+
+    /**
+     * @param string $unique_identifier
+     * @return null|string
+     */
+    public function getCached($unique_identifier)
+    {
+        $cache_file = $this->getCacheFile($unique_identifier);
+
+        if (is_file($cache_file)) {
+            return file_get_contents($cache_file);
+        }
+
+        return null;
+    }
+
+    /**
+     * @param string $unique_identifier
+     * @return null|string
+     */
+    public function getCachedUnlessExpired($unique_identifier)
+    {
+        $cache_file = $this->getCacheFile($unique_identifier);
+
+        // is it still valid?
+        if (is_file($cache_file) && (time() - filemtime($cache_file) < 60*$this->cache_expiry)) {
+            return file_get_contents($cache_file);
+        }
+
+        return null;
+    }
+
+    /**
+     * @param string $content
+     * @param string $unique_identifier
+     */
+    public function save($content, $unique_identifier)
+    {
+        $cache_file = $this->getCacheFile($unique_identifier);
+
+        file_put_contents($cache_file, $content);
+    }
+}