Print statistics how many files were checked in verbose (#9122)

Author: meltemkenis

doc/whatsnew/fragments/8935.other

@@ -0,0 +1,3 @@
+Print how many files were checked in verbose mode.
+
+Closes #8935

pylint/lint/pylinter.py

@@ -1080,7 +1080,7 @@ def open(self) -> None:
             )
         self.stats.reset_message_count()
 
-    def generate_reports(self) -> int | None:
+    def generate_reports(self, verbose: bool = False) -> int | None:
         """Close the whole package /module, it's time to make reports !
 
         if persistent run, pickle results for later comparison
@@ -1098,7 +1098,7 @@ def generate_reports(self) -> int | None:
 
             if self.config.reports:
                 self.reporter.display_reports(sect)
-            score_value = self._report_evaluation()
+            score_value = self._report_evaluation(verbose)
             # save results if persistent run
             if self.config.persistent:
                 save_results(self.stats, self.file_state.base_name)
@@ -1107,7 +1107,7 @@ def generate_reports(self) -> int | None:
             score_value = None
         return score_value
 
-    def _report_evaluation(self) -> int | None:
+    def _report_evaluation(self, verbose: bool = False) -> int | None:
         """Make the global evaluation report."""
         # check with at least a statement (usually 0 when there is a
         # syntax error preventing pylint from further processing)
@@ -1139,6 +1139,11 @@ def _report_evaluation(self) -> int | None:
                 if pnote is not None:
                     msg += f" (previous run: {pnote:.2f}/10, {note - pnote:+.2f})"
 
+            if verbose:
+                checked_files_count = self.stats.node_count["module"]
+                unchecked_files_count = self.stats.undocumented["module"]
+                msg += f"\nChecked {checked_files_count} files, skipped {unchecked_files_count} files"
+
         if self.config.score:
             sect = report_nodes.EvaluationSection(msg)
             self.reporter.display_reports(sect)

pylint/lint/run.py

@@ -203,13 +203,13 @@ def __init__(
                 with open(self._output, "w", encoding="utf-8") as output:
                     linter.reporter.out = output
                     linter.check(args)
-                    score_value = linter.generate_reports()
+                    score_value = linter.generate_reports(verbose=self.verbose)
             except OSError as ex:
                 print(ex, file=sys.stderr)
                 sys.exit(32)
         else:
             linter.check(args)
-            score_value = linter.generate_reports()
+            score_value = linter.generate_reports(verbose=self.verbose)
         if linter.config.clear_cache_post_run:
             clear_lru_caches()
             MANAGER.clear_cache()

tests/test_self.py

@@ -218,6 +218,11 @@ def test_disable_all(self) -> None:
         self._runtest([UNNECESSARY_LAMBDA, "--disable=all"], out=out, code=32)
         assert "No files to lint: exiting." in out.getvalue().strip()
 
+    def test_output_with_verbose(self) -> None:
+        out = StringIO()
+        self._runtest([UNNECESSARY_LAMBDA, "--verbose"], out=out, code=4)
+        assert "Checked 1 files, skipped 0 files" in out.getvalue().strip()
+
     def test_no_out_encoding(self) -> None:
         """Test redirection of stdout with non ascii characters."""
         # This test reproduces bug #48066 ; it happens when stdout is redirected