Improve logging

app/ServiceProvider/LoggingProvider.php

@@ -6,6 +6,8 @@ use Psr\Log\LogLevel;
 use Pimple\Container;
 use Pimple\ServiceProviderInterface;
 use SimpleLogger\Logger;
+use SimpleLogger\Stderr;
+use SimpleLogger\Stdout;
 use SimpleLogger\Syslog;
 use SimpleLogger\File;
 
@@ -14,19 +16,32 @@ class LoggingProvider implements ServiceProviderInterface
     public function register(Container $container)
     {
         $logger = new Logger;
+        $driver = null;
 
-        if (ENABLE_SYSLOG) {
-            $syslog = new Syslog('kanboard');
-            $syslog->setLevel(LogLevel::ERROR);
-            $logger->setLogger($syslog);
+        switch (LOG_DRIVER) {
+            case 'syslog':
+                $driver = new Syslog('kanboard');
+                break;
+            case 'stdout':
+                $driver = new Stdout();
+                break;
+            case 'stderr':
+                $driver = new Stderr();
+                break;
+            case 'file':
+                $driver = new File(LOG_FILE);
+                break;
         }
 
-        if (DEBUG) {
-            $logger->setLogger(new File(DEBUG_FILE));
+        if ($driver !== null) {
+            if (! DEBUG) {
+                $driver->setLevel(LogLevel::INFO);
+            }
+
+            $logger->setLogger($driver);
         }
 
         $container['logger'] = $logger;
-
         return $container;
     }
 }

app/constants.php

@@ -16,8 +16,13 @@ defined('FILES_DIR') or define('FILES_DIR', DATA_DIR.DIRECTORY_SEPARATOR.'files'
 defined('PLUGINS_DIR') or define('PLUGINS_DIR', ROOT_DIR.DIRECTORY_SEPARATOR.'plugins');
 
 // Enable/disable debug
-defined('DEBUG') or define('DEBUG', getenv('DEBUG'));
-defined('DEBUG_FILE') or define('DEBUG_FILE', getenv('DEBUG_FILE') ?: DATA_DIR.DIRECTORY_SEPARATOR.'debug.log');
+defined('DEBUG') or define('DEBUG', strtolower(getenv('DEBUG')) === 'true');
+
+// Logging drivers: syslog, stdout, stderr or file
+defined('LOG_DRIVER') or define('LOG_DRIVER', getenv('LOG_DRIVER'));
+
+// Logging file
+defined('LOG_FILE') or define('LOG_FILE', DATA_DIR.DIRECTORY_SEPARATOR.'debug.log');
 
 // Application version
 defined('APP_VERSION') or define('APP_VERSION', build_app_version('$Format:%d$', '$Format:%H$'));
@@ -96,9 +101,6 @@ defined('ENABLE_HSTS') or define('ENABLE_HSTS', true);
 // Enable or disable "X-Frame-Options: DENY" HTTP header
 defined('ENABLE_XFRAME') or define('ENABLE_XFRAME', true);
 
-// Syslog
-defined('ENABLE_SYSLOG') or define('ENABLE_SYSLOG', getenv('ENABLE_SYSLOG'));
-
 // Escape html inside markdown text
 defined('MARKDOWN_ESCAPE_HTML') or define('MARKDOWN_ESCAPE_HTML', true);