added rex console command

lib/RexStan.php

@@ -0,0 +1,35 @@
+<?php
+
+final class RexStan {
+    /**
+     * @return array|string
+     */
+    static public function runFromCli() {
+        $phpstanBinary = realpath(__DIR__.'/../vendor/bin/phpstan');
+        $configPath = realpath(__DIR__.'/../phpstan.neon');
+
+        $cmd = $phpstanBinary .' analyse -c '. $configPath;
+        $output = shell_exec($cmd);
+
+        return $output;
+    }
+
+    /**
+     * @return array|string
+     */
+    static public function runFromWeb() {
+        $phpstanBinary = realpath(__DIR__.'/../vendor/bin/phpstan');
+        $configPath = realpath(__DIR__.'/../phpstan.neon');
+
+        $cmd = $phpstanBinary .' analyse -c '. $configPath .' --error-format=json --no-progress 2>&1';
+
+        $output = shell_exec($cmd);
+        if ($output[0] === '{') {
+            // return the analysis result as an array
+            return json_decode($output, true);
+        }
+
+        // return the error string as is
+        return $output;
+    }
+}

lib/RexStanUserConfig.php

@@ -1,6 +1,6 @@
 <?php
 
-class RexStanUserConfig {
+final class RexStanUserConfig {
     /**
      * @param int   $level
      * @param array<string> $paths

lib/command.php

@@ -0,0 +1,24 @@
+<?php
+
+use Symfony\Component\Console\Exception\InvalidArgumentException;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class rexstan_command extends rex_console_command
+{
+    protected function configure()
+    {
+        $this
+            ->setName('rexstan:analyze')
+            ->setDescription('Run static code analysis')
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        echo RexStan::runFromCli();
+
+        return 0;
+    }
+}

package.yml

@@ -12,6 +12,9 @@ page:
         settings: { title: translate:settings }
         readme: { title: translate:readme, subPath: README.md }
 
+console_commands:
+    rexstan:analyze: rexstan_command
+
 requires:
     php:
         version: '>=7.2'

pages/analysis.php

@@ -2,16 +2,10 @@
 
 /** @var rex_addon $this */
 
-$phpstanBinary = realpath(__DIR__.'/../vendor/bin/phpstan');
-$configPath = realpath(__DIR__.'/../phpstan.neon');
+$phpstanResult = RexStan::runFromWeb();
 
-$cmd = $phpstanBinary .' analyse -c '. $configPath .' --error-format=json --no-progress 2>&1';
-
-$output = shell_exec($cmd);
-if ($output[0] === '{') {
-    $phpstanResult = json_decode($output, true);
-} else {
-    echo '<span class="rexstan-error">'.nl2br(rex_escape($output)).'</span>';
+if (is_string($phpstanResult)) {
+    echo '<span class="rexstan-error">'.nl2br(rex_escape($phpstanResult)).'</span>';
     return;
 }