report_converter: use relative file paths for testing ruff

Author: melven

tools/report-converter/codechecker_report_converter/analyzers/ruff/analyzer_result.py

@@ -50,8 +50,14 @@ def get_reports(self, file_path: str) -> List[Report]:
         for bug in bugs:
             fp = bug.get('filename')
             if not os.path.exists(fp):
-                LOG.warning("Source file does not exists: %s", fp)
-                continue
+                # Ruff uses absolute file names per default.
+                # However, for the tests, we also try relative filenames!
+                relative_fp = os.path.join(os.path.dirname(file_path), bug.get('filename'))
+                if os.path.exists(relative_fp):
+                    fp = relative_fp
+                else:
+                    LOG.warning("Source file does not exists: %s", fp)
+                    continue
 
             reports.append(Report(
                 get_or_create_file(os.path.abspath(fp), file_cache),

tools/report-converter/tests/unit/analyzers/ruff_output_test_files/Makefile

@@ -1,3 +1,3 @@
 # copied from pylint, could
 all:
-	ruff check --exit-zero --output-format=json --output-file=./simple.json files/simple.py
+	ruff check --exit-zero --output-format=json files/simple.py | sed "s#$(PWD)/##" > simple.json

tools/report-converter/tests/unit/analyzers/ruff_output_test_files/simple.json

@@ -6,7 +6,7 @@
       "column": 12,
       "row": 3
     },
-    "filename": "/localdata1/zoel_ml/codechecker/tools/report-converter/tests/unit/analyzers/ruff_output_test_files/files/simple.py",
+    "filename": "files/simple.py",
     "fix": {
       "applicability": "safe",
       "edits": [