Pslam level 1 + minor refactoring + fix BC checker (#31)

.github/workflows/bc.yml

@@ -1,15 +1,13 @@
 on:
-  pull_request:
-  push:
+  - pull_request
+  - push
 
 name: backwards compatibility
 jobs:
-    roave_bc_check:
-        name: Roave BC Check
-        runs-on: ubuntu-latest
-        steps:
-            - uses: actions/checkout@master
-            - name: fetch tags
-              run: git fetch --depth=1 origin +refs/tags/*:refs/tags/*
-            - name: Roave BC Check
-              uses: docker://nyholm/roave-bc-check-ga
+  roave_bc_check:
+    uses: yiisoft/actions/.github/workflows/bc.yml@master
+    with:
+      os: >-
+        ['ubuntu-latest']
+      php: >-
+        ['8.0']

composer.json

@@ -31,7 +31,7 @@
         "rector/rector": "^0.15.1",
         "roave/infection-static-analysis-plugin": "^1.25",
         "spatie/phpunit-watcher": "^1.23",
-        "vimeo/psalm": "^4.30|^5.2"
+        "vimeo/psalm": "^4.30|^5.6"
     },
     "autoload": {
         "psr-4": {

psalm.xml

@@ -1,15 +1,13 @@
 <?xml version="1.0"?>
 <psalm
-    errorLevel="2"
-    resolveFromConfigFile="true"
+    errorLevel="1"
+    findUnusedBaselineEntry="true"
+    findUnusedCode="false"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="https://getpsalm.org/schema/config"
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
 >
     <projectFiles>
-        <directory name="src" />
-        <ignoreFiles>
-            <directory name="vendor" />
-        </ignoreFiles>
+        <directory name="src"/>
     </projectFiles>
 </psalm>

src/SyslogTarget.php

@@ -26,10 +26,7 @@
  */
 final class SyslogTarget extends Target
 {
-    /**
-     * @var array Syslog levels.
-     */
-    private array $syslogLevels = [
+    private const SYSLOG_LEVELS = [
         LogLevel::EMERGENCY => LOG_EMERG,
         LogLevel::ALERT => LOG_ALERT,
         LogLevel::CRITICAL => LOG_CRIT,
@@ -75,7 +72,7 @@ protected function export(): void
         openlog($this->identity, $this->options, $this->facility);
 
         foreach ($this->getMessages() as $key => $message) {
-            if (syslog($this->syslogLevels[$message->level()], $formattedMessages[$key]) === false) {
+            if (syslog(self::SYSLOG_LEVELS[$message->level()], $formattedMessages[$key]) === false) {
                 throw new RuntimeException('Unable to export log through system log.');
             }
         }