Remove base path on LineFormatter (#1873)

src/Monolog/Formatter/LineFormatter.php

@@ -34,6 +34,7 @@ class LineFormatter extends NormalizerFormatter
     protected ?int $maxLevelNameLength = null;
     protected string $indentStacktraces = '';
     protected Closure|null $stacktracesParser = null;
+    protected string $basePath = '';
 
     /**
      * @param string|null $format                The format of the message
@@ -51,6 +52,21 @@ public function __construct(?string $format = null, ?string $dateFormat = null,
         parent::__construct($dateFormat);
     }
 
+    /**
+     * Setting a base path will hide the base path from exception and stack trace file names to shorten them
+     * @return $this
+     */
+    public function setBasePath(string $path = ''): self
+    {
+        if ($path !== '') {
+            $path = rtrim($path, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
+        }
+
+        $this->basePath = $path;
+
+        return $this;
+    }
+
     /**
      * @return $this
      */
@@ -258,7 +274,13 @@ private function formatException(\Throwable $e): string
                 }
             }
         }
-        $str .= '): ' . $e->getMessage() . ' at ' . $e->getFile() . ':' . $e->getLine() . ')';
+
+        $file = $e->getFile();
+        if ($this->basePath !== '') {
+            $file = preg_replace('{^'.preg_quote($this->basePath).'}', '', $file);
+        }
+
+        $str .= '): ' . $e->getMessage() . ' at ' . $file . ':' . $e->getLine() . ')';
 
         if ($this->includeStacktraces) {
             $str .= $this->stacktracesParser($e);
@@ -271,6 +293,10 @@ private function stacktracesParser(\Throwable $e): string
     {
         $trace = $e->getTraceAsString();
 
+        if ($this->basePath !== '') {
+            $trace = preg_replace('{^(#\d+ )' . preg_quote($this->basePath) . '}m', '$1', $trace) ?? $trace;
+        }
+
         if ($this->stacktracesParser !== null) {
             $trace = $this->stacktracesParserCustom($trace);
         }