add ruff_select, use --extend-select, add ignore_errors

Author: samuelcolvin

pytest_examples/config.py

@@ -26,6 +26,7 @@ class ExamplesConfig:
     upgrade: bool = False
     isort: bool = False
     ruff_line_length: int | None = None
+    ruff_select: list[str] | None = None
     ruff_ignore: list[str] | None = None
 
     def black_mode(self):
@@ -54,6 +55,9 @@ def ruff_config(self) -> tuple[str, ...]:
         else:
             args.append(f'--line-length={self.ruff_line_length}')
 
+        if self.ruff_select:
+            select.extend(self.ruff_select)
+
         if self.quotes == 'single':
             # enforce single quotes using ruff, black will enforce double quotes
             select.append('Q')

pytest_examples/eval_example.py

@@ -41,6 +41,7 @@ def set_config(
         upgrade: bool = False,
         isort: bool = False,
         ruff_line_length: int | None = None,
+        ruff_select: list[str] | None = None,
         ruff_ignore: list[str] | None = None,
     ):
         """
@@ -53,7 +54,8 @@ def set_config(
         :param upgrade: If True, upgrade the code to the target version, defaults to False.
         :param isort: If True, run ruff's isort extension on the code, defaults to False.
         :param ruff_line_length: In general, we disable line-length checks in ruff, to let black take care of them.
-        :param ruff_ignore: Ruff rule to ignore
+        :param ruff_select: Ruff rules to select
+        :param ruff_ignore: Ruff rules to ignore
         """
         self.config = ExamplesConfig(
             line_length=line_length,
@@ -63,6 +65,7 @@ def set_config(
             upgrade=upgrade,
             isort=isort,
             ruff_line_length=ruff_line_length,
+            ruff_select=ruff_select,
             ruff_ignore=ruff_ignore,
         )
 

pytest_examples/lint.py

@@ -23,8 +23,12 @@ class FormatError(ValueError):
 def ruff_format(
     example: CodeExample,
     config: ExamplesConfig | None,
+    *,
+    ignore_errors: bool = False,
 ) -> str:
     args = ('--fix',)
+    if ignore_errors:
+        args += ('--exit-zero',)
     try:
         return ruff_check(example, config, extra_ruff_args=args)
     except FormatError:
@@ -43,9 +47,7 @@ def ruff_check(
     *,
     extra_ruff_args: tuple[str, ...] = (),
 ) -> str:
-    args = 'ruff', '-', *config.ruff_config()
-
-    args += extra_ruff_args
+    args = 'ruff', '-', *config.ruff_config(), *extra_ruff_args
 
     p = Popen(args, stdin=PIPE, stdout=PIPE, stderr=PIPE, universal_newlines=True)
     stdout, stderr = p.communicate(example.source, timeout=2)