fixed-islogfromcurrentproject func

src/cleanup_immediately_unittest.cc

@@ -61,6 +61,8 @@ TEST(CleanImmediately, logging) {
 
   for (unsigned i = 0; i < 1000; ++i) {
     LOG(INFO) << "cleanup test";
+    LOG(WARNING) << "cleanup test";
+    LOG(ERROR) << "cleanup test";
   }
 
   google::DisableLogCleaner();

src/logging.cc

@@ -1416,8 +1416,30 @@ bool LogCleaner::IsLogFromCurrentProject(
     }
   }
 
+  // As we want to delete old logs despite their severity,
+  // we need to replace <severity> in cleaned_base_file and find matching one. 
+  const string::size_type dot_pos = 
+      cleaned_base_filename.find_last_of('.', cleaned_base_filename.size() - 2);
+
+  const string new_base_filename = cleaned_base_filename.substr(0, dot_pos + 1);
+
+  // Loop through severity names and check whether
+  // filepath contains cleaned_base_filename_with_severity
+  bool found_file = false;
+  for (const auto& severity : LogSeverityNames) {
+    string cleaned_base_filename_with_severity = new_base_filename + severity;
+
+    if (filepath.find(cleaned_base_filename_with_severity) == 0) {
+      // Assign cleaned_base_filename to our new base name 
+      // Add trailing dot we deleted earlier
+      cleaned_base_filename = cleaned_base_filename_with_severity + '.';
+      found_file = true;
+      break;
+    }
+  }
+
   // Return early if the filename doesn't start with `cleaned_base_filename`.
-  if (filepath.find(cleaned_base_filename) != 0) {
+  if (!found_file) {
     return false;
   }