initial commit

.gitattributes

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+# Ignore all test and documentation for archive
+/.github            export-ignore
+/.gitattributes     export-ignore
+/.gitignore         export-ignore
+/.scrutinizer.yml   export-ignore
+/phpunit.xml.dist   export-ignore
+/tests              export-ignore
+/docs               export-ignore

.github/FUNDING.yml

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+# These are supported funding model platforms
+
+github: [klimov-paul]
+patreon: klimov_paul

.github/ISSUE_TEMPLATE.md

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+### What steps will reproduce the problem?
+
+### What is the expected result?
+
+### What do you get instead?
+
+### Additional info
+
+| Q                     | A
+|-----------------------| ---
+| This Package Version  | 1.?.?
+| Yii Framework Version | 1.1.?
+| PHP version           | 
+| Operating system      |

.github/PULL_REQUEST_TEMPLATE.md

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+| Q             | A
+| ------------- | ---
+| Is bugfix?    | ✔️/❌
+| New feature?  | ✔️/❌
+| Breaks BC?    | ✔️/❌
+| Tests pass?   | ✔️/❌
+| Fixed issues  | comma-separated list of tickets # fixed by the PR, if any

.github/workflows/build.yml

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+name: build
+
+on: [push, pull_request]
+
+jobs:
+  phpunit:
+    name: PHP ${{ matrix.php }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        php: ['7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2']
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          extensions: mbstring
+          tools: composer:v2
+          coverage: none
+
+      - name: Install dependencies
+        run: |
+          composer update --prefer-dist --no-interaction --no-progress --optimize-autoloader --ansi
+      - name: Run unit tests
+        run: vendor/bin/phpunit --colors=always

.gitignore

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+# phpstorm project files
+.idea
+
+# netbeans project files
+nbproject
+
+# zend studio for eclipse project files
+.buildpath
+.project
+.settings
+
+# windows thumbnail cache
+Thumbs.db
+
+# composer vendor dir
+/vendor
+
+/composer.lock
+
+# composer itself is not needed
+composer.phar
+
+# Mac DS_Store Files
+.DS_Store
+
+# phpunit itself is not needed
+phpunit.phar
+# local phpunit config
+/phpunit.xml
+# phpunit cache
+.phpunit.result.cache
+
+# test runtime files
+/.phpunit.cache
+/tests/runtime

CHANGELOG.md

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+Yii1 PSR-6 Cache extension
+==========================
+
+1.0.0 Under Development
+-----------------------
+
+- Initial release.

LICENSE.md

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+This is free software. It is released under the terms of the
+following BSD License.
+
+Copyright © 2023 by Yii1Tech (https://github.com/yii1tech)
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+
+ * Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in
+   the documentation and/or other materials provided with the
+   distribution.
+ * Neither the name of Yii1Tech nor the names of its
+   contributors may be used to endorse or promote products derived
+   from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.

README.md

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+<p align="center">
+    <a href="https://github.com/yii1tech" target="_blank">
+        <img src="https://avatars.githubusercontent.com/u/134691944" height="100px">
+    </a>
+    <h1 align="center">Yii1 PSR-6 Cache Extension</h1>
+    <br>
+</p>
+
+This extension allows integration with PSR-6 compatible cache for Yii1.
+
+For license information check the [LICENSE](LICENSE.md)-file.
+
+[![Latest Stable Version](https://img.shields.io/packagist/v/yii1tech/psr-cache.svg)](https://packagist.org/packages/yii1tech/psr-cache)
+[![Total Downloads](https://img.shields.io/packagist/dt/yii1tech/psr-cache.svg)](https://packagist.org/packages/yii1tech/psr-cache)
+[![Build Status](https://github.com/yii1tech/psr-cache/workflows/build/badge.svg)](https://github.com/yii1tech/psr-cache/actions)
+
+
+Installation
+------------
+
+The preferred way to install this extension is through [composer](http://getcomposer.org/download/).
+
+Either run
+
+```
+php composer.phar require --prefer-dist yii1tech/psr-cache
+```
+
+or add
+
+```json
+"yii1tech/psr-cache": "*"
+```
+
+to the "require" section of your composer.json.
+
+
+Usage
+-----
+
+This extension allows integration with PSR-6 compatible cache for Yii1.

composer.json

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+{
+    "name": "yii1tech/psr-cache",
+    "description": "Provides support for PSR-6 compatible cache for Yii1 application",
+    "keywords": ["yii1", "psr", "cache", "psr-6", "caching"],
+    "license": "BSD-3-Clause",
+    "support": {
+        "issues": "https://github.com/yii1tech/psr-cache/issues",
+        "wiki": "https://github.com/yii1tech/psr-cache/wiki",
+        "source": "https://github.com/yii1tech/psr-cache"
+    },
+    "authors": [
+        {
+            "name": "Paul Klimov",
+            "email": "[email protected]"
+        }
+    ],
+    "require": {
+        "php": ">=7.1",
+        "yiisoft/yii": "~1.1.0",
+        "psr/cache": ">=1.0.0"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^6.0 || ^7.0 || ^8.0 || ^9.3 || ^10.0.7"
+    },
+    "autoload": {
+        "psr-4": {
+            "yii1tech\\psr\\cache\\": "src"
+        }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "yii1tech\\psr\\cache\\test\\": "tests"
+        }
+    },
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0.x-dev"
+        }
+    }
+}

phpunit.xml.dist

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+<?xml version="1.0" encoding="utf-8"?>
+<phpunit bootstrap="./tests/bootstrap.php"
+		 colors="true"
+		 backupGlobals="false"
+		 backupStaticProperties="false"
+		 processIsolation="false"
+		 cacheDirectory=".phpunit.cache"
+		 stopOnError="false"
+		 stopOnFailure="false">
+	<testsuites>
+		<testsuite name="Yii1tech Test Suite">
+			<directory>./tests</directory>
+		</testsuite>
+	</testsuites>
+</phpunit>

src/CacheItem.php

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+<?php
+
+namespace yii1tech\psr\cache;
+
+use CComponent;
+
+/**
+ * @author Paul Klimov <[email protected]>
+ * @since 1.0
+ */
+class CacheItem extends CComponent
+{
+
+}

src/CacheItemPool.php

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+<?php
+
+namespace yii1tech\psr\cache;
+
+use CApplicationComponent;
+use Yii;
+
+/**
+ * @author Paul Klimov <[email protected]>
+ * @since 1.0
+ */
+class CacheItemPool extends CApplicationComponent
+{
+    /**
+     * @var \ICache|array|string
+     */
+    private $_cache = 'cache';
+
+    /**
+     * @return \ICache Yii cache component instance.
+     */
+    public function getCache()
+    {
+        if (!is_object($this->_cache)) {
+            if (is_string($this->_cache)) {
+                $this->_cache = Yii::app()->getComponent($this->_cache);
+            } else {
+                $this->_cache = Yii::createComponent($this->_cache);
+            }
+        }
+
+        return $this->_cache;
+    }
+
+    /**
+     * @param \ICache|array|string $cache cache component instance, application component ID or array configuration.
+     * @return static self reference.
+     */
+    public function setCache($cache): self
+    {
+        $this->_cache = $cache;
+
+        return $this;
+    }
+
+
+}

tests/CacheItemPoolTest.php

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+<?php
+
+namespace yii1tech\psr\cache\test;
+
+use CDummyCache;
+use ICache;
+use yii1tech\psr\cache\CacheItemPool;
+
+class CacheItemPoolTest extends TestCase
+{
+    public function testSetupCache(): void
+    {
+        $pool = new CacheItemPool();
+
+        $cache = new CDummyCache();
+
+        $pool->setCache($cache);
+        $this->assertSame($cache, $pool->getCache());
+
+        $pool->setCache([
+            'class' => CDummyCache::class,
+        ]);
+        $cache = $pool->getCache();
+        $this->assertTrue($cache instanceof CDummyCache);
+    }
+
+    public function testGetDefaultCache(): void
+    {
+        $pool = new CacheItemPool();
+
+        $cache = $pool->getCache();
+        $this->assertTrue($cache instanceof ICache);
+    }
+}