Add a selfoss CLI tool

This introduces two commands for dumping and loading the database contents:

- `php bin/selfoss db:export path.json`
- `php bin/selfoss db:import path.json`

Those are useful for testing, as well as for moving data from one database backend to another.

Different databases support different formats of a datetime so we use ISO 8601 (“ATOM”) format as a normal form in the JSON file no matter the backend.
Similarly, we use arrays instead of comma-separated-values strings since different backends might choose to implement them differently (e.g. using JSON data types).

Author: jtojnar

.php-cs-fixer.php

@@ -4,7 +4,8 @@
     ->exclude('client')
     ->exclude('utils')
     ->in(__DIR__)
-    ->name('*.phtml');
+    ->name('*.phtml')
+    ->name('selfoss');
 
 $rules = [
     '@Symfony' => true,

bin/selfoss

@@ -0,0 +1,23 @@
+#!/usr/bin/env php
+<?php
+
+// SPDX-FileCopyrightText: 2023 Jan Tojnar <[email protected]>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+require __DIR__ . '/../src/common.php';
+
+use Commands\Database\ExportCommand as DatabaseExportCommand;
+use Commands\Database\ImportCommand as DatabaseImportCommand;
+use Monolog\Handler\StreamHandler;
+use Symfony\Component\Console\Application;
+
+$application = new Application();
+
+$log->popHandler();
+$handler = new StreamHandler('php://stderr');
+$log->pushHandler($handler);
+
+$application->add($dice->create(DatabaseExportCommand::class));
+$application->add($dice->create(DatabaseImportCommand::class));
+
+$application->run();

composer.json

@@ -23,6 +23,7 @@
         "simplepie/simplepie": "^1.8",
         "smottt/wideimage": "^1.1",
         "symfony/cache": "^5.4",
+        "symfony/console": "^5.4",
         "symfony/polyfill-php80": "^1.26",
         "violet/streaming-json-encoder": "^1.1",
         "vstelmakh/url-highlight": "^3.0",
@@ -43,6 +44,7 @@
     ],
     "autoload": {
         "psr-4": {
+            "Commands\\": "src/Commands/",
             "controllers\\": "src/controllers/",
             "daos\\": "src/daos/",
             "helpers\\": "src/helpers/",