git diff

src/verinfast/utils/git_metrics.py

@@ -0,0 +1,49 @@
+from typing import List, Optional, Dict, Any
+from modernmetric import process_diff_content
+from verinfast.utils.utils import std_exec
+
+class MetricArgs:
+    def __init__(self):
+        self.ignore_lexer_errors = True
+        self.dump = False
+        self.halstead_bug_predict_method = "default"
+        self.maintenance_index_calc_method = "default"
+
+def analyze_git_diff(commit_id: str, file_name: str, log=None) -> Optional[Dict[str, Any]]:
+    cmd: List[str] = [
+        "git", "show", "-p", 
+        f"--format=", 
+        commit_id, 
+        "--", 
+        file_name
+    ]
+
+    try:
+        diff_output = std_exec(cmd, log=log)
+
+        # Skip the first 4 lines (diff headers)
+        diff_lines = diff_output.splitlines()[4:]
+        diff_content = '\n'.join(diff_lines)
+
+        args = MetricArgs()
+
+        results = process_diff_content(
+            _content=diff_content,
+            _file=file_name,
+            _args=args,
+            _importer={}
+        )
+
+        return {
+            'metrics': results[0],
+            'file': results[1],
+            'language': results[2],
+            'store': results[4]
+        }
+
+    except Exception as e:
+        if log is not None:
+            log(tag="git_metrics Error", msg=f"Error analyzing git diff: {e}")
+        else:
+            print(f"Error analyzing git diff: {e}")
+        return None