fix: score extensionless configured files

gittensor/classes.py

@@ -15,6 +15,7 @@
     from gittensor.validator.oss_contributions.mirror.scored_pr import ScoredMirrorPR
 
 from gittensor.constants import (
+    EXTENSIONLESS_FILE_EXTENSIONS,
     MAINTAINER_ASSOCIATIONS,
     MAX_CODE_DENSITY_MULTIPLIER,
     MIN_TOKEN_SCORE_FOR_BASE_SCORE,
@@ -77,7 +78,10 @@ def __post_init__(self):
 
     def _calculate_file_extension(self) -> str:
         basename = self.filename.split('/')[-1]
-        return basename.split('.')[-1].lower() if '.' in basename else ''
+        if '.' in basename:
+            return basename.split('.')[-1].lower()
+        basename_lower = basename.lower()
+        return basename_lower if basename_lower in EXTENSIONLESS_FILE_EXTENSIONS else ''
 
     def is_test_file(self) -> bool:
         filename_lower = self.filename.lower()

gittensor/constants.py

@@ -69,6 +69,7 @@
     'erb',
 ]
 MAX_LINES_SCORED_FOR_NON_CODE_EXT = 300
+EXTENSIONLESS_FILE_EXTENSIONS = {'dockerfile', 'makefile'}
 
 # =============================================================================
 # Repository & PR Scoring

tests/test_classes.py

@@ -72,6 +72,22 @@ def test_is_test_file_preserves_existing_test_conventions():
     assert _file_change('src/foo/bar.py').is_test_file() is False
 
 
+@pytest.mark.parametrize(
+    'filename,expected',
+    [
+        ('Dockerfile', 'dockerfile'),
+        ('dockerfile', 'dockerfile'),
+        ('ops/Dockerfile', 'dockerfile'),
+        ('Makefile', 'makefile'),
+        ('makefile', 'makefile'),
+        ('build.mk', 'mk'),
+        ('README', ''),
+    ],
+)
+def test_file_extension_handles_configured_extensionless_filenames(filename, expected):
+    assert _file_change(filename).file_extension == expected
+
+
 @pytest.mark.parametrize(
     'filename',
     [

tests/validator/test_token_scoring_integration.py

@@ -14,8 +14,10 @@
 
 import pytest
 
-from gittensor.validator.utils.load_weights import TokenConfig, load_token_config
-from gittensor.validator.utils.tree_sitter_scoring import score_tree_diff
+from gittensor.classes import FileChange
+from gittensor.utils.github_api_tools import FileContentPair
+from gittensor.validator.utils.load_weights import TokenConfig, load_programming_language_weights, load_token_config
+from gittensor.validator.utils.tree_sitter_scoring import calculate_token_score_from_file_changes, score_tree_diff
 
 
 class TestTreeDiffScoring:
@@ -25,6 +27,43 @@ class TestTreeDiffScoring:
     def weights(self) -> TokenConfig:
         return load_token_config()
 
+    @pytest.mark.parametrize(
+        'filename,old_content,new_content',
+        [
+            (
+                'Dockerfile',
+                'FROM python:3.12-slim\n',
+                'FROM python:3.12-slim\nRUN pip install uv\nCOPY . /app\n',
+            ),
+            (
+                'Makefile',
+                'test:\n\tpytest\n',
+                'test:\n\tpytest\n\nlint:\n\truff check\n',
+            ),
+        ],
+    )
+    def test_configured_extensionless_files_reach_tree_diff(self, weights, filename, old_content, new_content):
+        file_change = FileChange(
+            pr_number=1,
+            repository_full_name='test/repo',
+            filename=filename,
+            changes=3,
+            additions=2,
+            deletions=1,
+            status='modified',
+        )
+        result = calculate_token_score_from_file_changes(
+            [file_change],
+            {filename: FileContentPair(old_content=old_content, new_content=new_content)},
+            weights,
+            load_programming_language_weights(),
+        )
+
+        file_result = result.file_results[0]
+        assert file_change.file_extension == filename.lower()
+        assert file_result.scoring_method == 'tree-diff'
+        assert file_result.nodes_scored > 0
+
     def test_new_file_scores_all_nodes(self, weights):
         """
         Test scoring a completely new file (no old content).